WO2004096260A1 - 肝障害予防治療剤 - Google Patents
肝障害予防治療剤 Download PDFInfo
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- WO2004096260A1 WO2004096260A1 PCT/JP2004/006365 JP2004006365W WO2004096260A1 WO 2004096260 A1 WO2004096260 A1 WO 2004096260A1 JP 2004006365 W JP2004006365 W JP 2004006365W WO 2004096260 A1 WO2004096260 A1 WO 2004096260A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/10—Peptides having 12 to 20 amino acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/22—Hormones
- A61K38/25—Growth hormone-releasing factor [GH-RF], i.e. somatoliberin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/16—Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
Definitions
- the present invention relates to a therapeutic agent for liver injury. More specifically, it increases the intracellular calcium ion concentration by binding to the growth hormone secretion inducer receptor, GH S-R (hereinafter, abbreviated as GHSR). Containing a derivative of a polypeptide that has the activity to induce liver disease such as hepatitis, cirrhosis or hepatic failure, or liver regeneration after hepatectomyRecovery or recovery of liver function
- GHSR growth hormone secretion inducer receptor
- the liver is a vital organ that plays an important role in the metabolism of many substances. Through the bioregulatory system, the liver plays a major role in maintaining blood and glucose homeostasis and supplies energy to tissues throughout the body. Furthermore, the liver synthesizes many peptides and sends them out to the blood and tissues. In this way, the liver is an extremely important mechanism for life support, such as metabolism of biological substances such as glucose metabolism, amino acid and protein metabolism, and lipid metabolism, excretion of metabolites, detoxification of chemicals such as ammonia, and storage of vitamins. Noh plays.
- Non-Patent Document 1 It is known that the liver develops JfF inflammation due to virus infection, alcohol intake or drug intake, and when it becomes chronic, a part of the liver shifts to fF cirrhosis and mortality increases. It is known that in patients with hepatic disorders such as hepatitis, cirrhosis or hepatic failure, a decrease in fibrinogen, a decrease in platelets, an increase in blood coagulation time, and an increase in serum hepatic escape enzymes are associated with decreased liver function. For this reason, a bleeding tendency appears, which causes a patient to die (Non-Patent Document 1).
- liver disease in addition to the drug treatment described above, medical treatment such as ethanol injection, microwave ablation, or hepatic artery embolization is performed, or liver resection or living donor liver transplantation is performed.
- medical treatment such as ethanol injection, microwave ablation, or hepatic artery embolization is performed, or liver resection or living donor liver transplantation is performed.
- surgical procedures are being performed or treatment is being performed.
- the choice of a medical or surgical procedure as described above will be determined on a case-by-case basis in the medical practice, depending on the patient's age and physical condition, such as disease status such as the size and number of caves, and liver function. It is usually preceded by medical treatment.
- When performing surgical procedures it is assumed that the number of cancers is limited to a few or less and that residual liver function is maintained. Regardless of the choice of medical or surgical treatment, these procedures often result in reduced or abnormal liver function.
- liver function after transplantation surgery Particularly in the case of living donor liver transplantation, both donors and recipients often have reduced or abnormal liver function after transplantation surgery. At present, nutritional status is managed for such a decrease or abnormality in liver function after liver surgery, but this has not been prevented, and liver function after liver surgery has not been prevented. There is a need for effective treatments to prevent or reduce the decline or abnormalities of the disease.
- Hepatocyte growth factor (Non-patent Document 2, Non-patent Document 3), Inuichi Feron, i3, and i3 have been shown to inhibit liver fibrosis in liver fibrosis and cirrhosis model animals.
- Non-patent document 4 HGF has an angiogenic effect, and there are concerns about side effects.
- growth hormone GH
- IGF-1 Stimulation of (IGF-1) production to induce hepatocyte proliferation Non-patent Document 5, Non-patent Document 6
- induction of HGF by causing IGF-1 to act on hepatocytes was reported.
- no results have been found for examining the healing effect on liver injury.
- GH has side effects such as edema and worsening insulin resistance.
- insulin and Epidermal Growth Factor- (EGF) Non-Patent Document 8
- TGF- ⁇ Transforming Growth Factor- ⁇
- hepatocyte growth activity thymidine incorporation into DNA
- darelin is a peptide consisting of 28 amino acid residues found in the stomach, and the 3-position serine is modified with an octyl-noyl group (Patent Document 1).
- Darrelin acts on the growth hormone secretagogue-Receptor Yuichi (Growth Hormone Secretagogue-Receptor; GH SR) (Non-Patent Document 10) and may be an endogenous brain-gastrointestinal hormone that enhances GH secretion from the pituitary gland.
- Non-Patent Document 11 and recently, it has been shown in mice or rats that Darrelin enhances appetite and that subcutaneous administration increases body weight and body fat (Non-Patent Document 12, Non-Patent Document 11).
- darelin it has not been known to use darelin as a prophylactic or therapeutic agent for liver damage.
- Non-Patent Document 12 Wren et.al., Endocrinology, vol.141, p.4325-4328 (2000)
- An object of the present invention is to provide an agent for preventing or treating liver injury. More specifically, an object of the present invention is to provide a drug suitable for treating or preventing liver diseases such as hepatitis, cirrhosis, and liver failure. Furthermore, an object of the present invention is to provide a medicament having a hepatocyte proliferation promoting action which can be used as a liver regeneration / liver function recovery promoting agent after hepatectomy.
- the present inventors have conducted intensive studies in order to achieve the above object, and found that a derivative of a polypeptide having an activity of increasing intracellular calcium ion concentration by binding to GHS-R is useful for the treatment of hepatitis, cirrhosis, and liver. It has been found that it has a preventive, palliative or therapeutic effect on liver diseases such as insufficiency. Furthermore, the present inventors have found that the above polypeptide derivative has a hepatocyte proliferation-promoting action, and as a result, it is possible to prevent liver function deterioration after liver surgery, prevent liver function abnormality, or regenerate liver and restore liver function. I also found it useful. The present inventors have further studied and completed the present invention.
- the present invention (1) an amino acid sequence having an activity of increasing intracellular calcium ion concentration by binding to GHS-R and being selected from the group consisting of the amino acid sequences of SEQ ID NOs: 1 to 22, or the amino acid A derivative of a polypeptide having an amino acid sequence in which one or several amino acids are deleted, substituted or added except for the first to fourth amino acid residues at the amino terminus in the sequence, or a pharmacologically acceptable derivative thereof.
- the polypeptide derivative has deletion, substitution or addition of one to several amino acids other than the amino acid sequences of SEQ ID NOS: 1 to 22 and the first to fourth amino acid residues of the amino acid sequence.
- the amino acid sequence of a polypeptide consisting of one amino acid sequence selected from the group consisting of the following amino acid sequences is the following formula (1);
- T 1 represents a divalent hydrocarbon group of carbon number 1 to 20
- P 1 is — C ⁇ —, one S0 2 _, -CO one O—, one hundred one CO—, one O—, one CO—S—, one S—CO—, one CS—S—, one S—CS—, One S—, _C ⁇ One NR 4 —, One NR 4 — CO—, One CO— NR 4 — CO One, One CS—NR 4 — CS—, — S—S—, —CS— NR 4 —or— NR 4 — CS — (R 4 represents hydrogen or ( ⁇ -4 alkyl group)
- Q 1 is a hydrogen atom, which may be substituted Alkyl group, optionally substituted C 2 one 35 alkenyl group, optionally substituted C 3 - 8 cycloalkyl group, an alkylene which may be substituted one
- R 3 is, - T 2 - P 2 - Q 2 (wherein, T 2 represents - 6 alkylene group, C 2 - 6 ⁇ Luque two alkylene groups, alkylene -.
- P 2 represents a phenylene group
- P 2 is —CO— ⁇ —, — ⁇ C—one, one 0_, _S—, one S—S—, one CO— NR 4 — or one NR 4 — CO— (R 4 is hydrogen or ⁇ — 4 represents an alkyl group.)
- Q 2 may be substituted (: a trialkyl group, an optionally substituted c 2 _ 2, an alkenyl group, an optionally substituted C 3 - represents an 8 cycloalkyl group, an optionally substituted C 4 Ariru group or substitution which may be C 7 _ 16 Ararukiru group - 8 cycloalkyl group, optionally substituted alkylene - C 3 ) Or one of P 2 —Q 2 (wherein P
- T 2 is (6 alkylene group, P 2 is - O-CO-, liver according to the above (3), wherein the Q 2 is optionally substituted ⁇ 2 also be an alkyl group.
- Y is the following formula (1)
- T 1 is P 1 representing a divalent hydrocarbon group of carbon number 1 to 20, One CO—, _S0 2— , One CO—One, One CO—, One 0—, One CO—S—, One S—CO—, One CS—S—, One S—CS—, One S —, One CO— NR 4 —, _NR 4 — CO—, one CO— NR 4 — C ⁇ —, _CS— NR 4 — CS—, one S—S—, — CS— NR 4 — or —NR 4 — CS I (R 4 is hydrogen or Represents an alkyl group.
- Q 1 is a hydrogen atom, an optionally substituted Ci- 35 alkyl group, an optionally substituted C 2 _ 35 alkenyl group, an optionally substituted C 3 _ 8 cycloalkyl group, which may be ( ⁇ _ 6 alkylene - C 3 - 8 cycloalkyl group, a substituted C 6 _ 14 optionally ⁇ Li Ichirumotoma others an optionally substituted C 7 _ 16 Ararukiru group. ), —P 1 —Q 1 (wherein P 1 and Q 1 are as defined above) or —Q 1 (wherein, Q 1 is as defined above).
- R 1 or R 2 when either R 1 or R 2 is Q 1 , the other is T 1 —P 1 —Q 1 (wherein TP 1 and Q 1 are as defined above) or —P 1 —Q 1 (wherein P 1 and Q 1 are as defined above).
- ⁇ represents a group represented by z represents a natural amino acid residue or an optical isomer thereof.
- liver injury containing a polypeptide derivative or a pharmacologically acceptable salt thereof as an active ingredient, which has the activity of increasing intracellular calcium ion concentration by binding to GHS-R Agent
- Y is the following formula (1)
- R 1 and R 2 are the same or different, - T 1 one P 1 -.
- Q 1 (wherein, T 1 is P 1 representing a divalent hydrocarbon group of carbon number 1 to 20, —CO—, one S0 2 —, -CO one-one, one-one CO—, one O—, one CO—S—, one S—CO—, one CS—S—, one S—CS—, one S-, one CO- NR 4 -, one NR 4 - CO-, one CO- NR 4 - CO one, _CS- NR 4 - CS-, -S- S-, one CS-NR 4 - or a NR 4 - CS one (R 4 represents hydrogen or an alkyl group.) represents the Q 1 represents a hydrogen atom, optionally substitution (:.
- Q 1 (In formula (I), Q 1 represents the same meanings as) wherein, R 1 and R When any of 2 is Q 1 , the other is —T 1 -P 1 -Q 1 (wherein TP 1 and Q 1 are as defined above) or 1 P 1 -Q 1 (wherein, P 1 and Q 1 are the same as defined above.)
- An amino acid sequence in which one or several amino acids have been deleted, substituted or added in the corresponding portion or the above portion has an activity to increase intracellular calcium ion concentration by binding to GHS-R.
- a prophylactic or therapeutic agent for liver damage comprising a polypeptide derivative or a pharmaceutically acceptable salt thereof as an active ingredient;
- X is a compound of the formula (4): H 2 N—X 1 —CO— (X 1 is a C 4 alkylene group which may have a substituent, or at least one carbon atom of the C 4 alkylene group Is o,
- T 1 represents a divalent hydrocarbon group having a carbon number of 1 to 20 [rho 1 is _C ⁇ —, — S0 2 —, one CO one O—, one O—CO—, one hundred one, one CO—S—, one S—CO—, one CS—S—, one S—CS—, one S—, one CO— NR 4 —, _NR 4 — CO—, one CO— NR 4 — CO—, —CS—NR 4 — CS—, one S—S—, — CS— NR 4 — or one NR 4 - CS -.
- R 4 is hydrogen or an alkyl group
- Q 1 is a hydrogen atom, replacement that may be mentioned are 5 alkyl group, optionally substituted C 2 one 35 alkenyl Group, optionally substituted C 3 - 8 cycloalkyl group, a substituted alkylene one c 3 _ 8 optionally cycloalkyl group, was optionally substituted c 6 _ i be the 4 ⁇ Li Ichirumotoma represents an optionally substituted C 7 _ 16 Ararukiru group. ), —Pi—Q 1 (wherein P 1 and Q 1 are as defined above) or —Q 1 (wherein, Q 1 is as defined above).
- R 1 or R 2 is Q 1
- the other is —T 1 —P 1 —Q 1 (wherein, D 1 , P 1 and Q 1 are as defined above) or 1 P 1 — Q 1 (wherein, P 1 and Q 1 are as defined above).
- ⁇ represents a group represented by
- T 1 represents a divalent hydrocarbon group of carbon number 1 to 20
- P 1 is —CO—, one S0 2 _, one CO one O—, one hundred one CO—, one O—, one CO—S—, one S—CO—, one CS—S—, one S—CS—, one S-, one CO- NR 4 -, one NR 4 - CO-, one CO- NR 4 - CO one, - CS-NR 4 - CS- , one S- S-, - CS-NR 4 - or a NR 4 — CS-(R 4 is hydrogen or Represents an alkyl group.
- Q 1 is a hydrogen atom, an optionally substituted C 35 alkyl group, an optionally substituted C 2 — 35 alkenyl Group, optionally substituted C 3 - 8 cycloalkyl group, an optionally substituted ( ⁇ _ 6 alkylene one C 3 _ 8 cycloalkyl group, an optionally C 6 ⁇ 4 Ariru group were or may be substituted
- -P ⁇ Q 1 wherein P 1 and Q 1 are as defined above
- one Q 1 wherein Q 1 Is as defined above.
- R 1 or R 2 is Q 1
- the other is one T 1 —P 1 —Q 1 (wherein, 1 , 1 , P 1 and Q 1 are as defined above) or one P 1 — Q 1 (wherein, P 1 and Q 1 are as defined above).
- B and C When only one of B and C is an amino acid residue represented by the formula (1), the other is a natural amino acid residue or an optical isomer thereof.
- a preventive or therapeutic agent for liver damage comprising a derivative of or a pharmacologically acceptable salt thereof as an active ingredient
- liver damage is one or more diseases selected from the group consisting of hepatitis, cirrhosis and liver failure.
- hepatitis is one or more diseases selected from the group consisting of viral hepatitis, alcoholic hepatitis, drug-induced hepatitis and autoimmune hepatitis.
- preventive or therapeutic agent for liver damage according to, (17)
- a method for treating liver damage comprising administering to a milk animal;
- Y is the following formula (1)
- T 1 represents a divalent hydrocarbon group of carbon number 1 to 20
- P 1 is - CO-, one S_ ⁇ 2 -, -CO - O-, one hundred and one CO-, one hundred and one, one CO- S-, one S- CO-, one CS- S-, one S- CS-, One S—, One CO— NR 4 —, One NR 4 — CO—, One CO— NR 4 — CO One, —CS—NR 4 —CS—, _S_S—, one CS—NR 4 — or one NR 4 —CS— (R 4 represents hydrogen or an alkyl group).
- Q 1 represents a hydrogen atom, an optionally substitution C alkyl group, optionally substituted C 2 _ 35 alkenyl group, optionally substituted C 3 _ 8 cycloalkyl group, optionally substituted good ( ⁇ _ 6 alkylene - C 3 -. 8 cycloalkyl group, showing a substituted one optionally C 6 even though 14 Ariru group or is an optionally substituted C 7 _ 16 Ararukiru group), one P 1 — Q 1 (wherein, P 1 and Q 1 are as defined above) or — Q 1 (wherein, Q 1 is as defined above). However, if any of R 1 and R 2 are Q 1, the other one T ⁇ - P 1 - Q 1 (. Wherein, T [rho 1 and Q 1 are as defined above) or a P 1 - Q 1 (wherein, ⁇ 1 and Q 1 are as defined above).
- ⁇ represents a group represented by
- ⁇ represents a natural amino acid residue or an optical isomer thereof.
- a mammal such as a human
- a polypeptide derivative or a pharmaceutically acceptable salt thereof having the activity of increasing intracellular calcium ion concentration by binding to GHSR.
- Y is the following formula (1)
- R 1 and R 2 are the same or different, -T 1 - P 1 -.
- Q 1 (wherein, T 1 represents a divalent hydrocarbon group of carbon number 1 to 20 P 1 is —CO—, one S0 2 —, one CO one, one O—CO—, one hundred, one CO—S—, one S—CO—, one CS—S—, one S—CS—, one S—, _CO— NR 4 —, one NR 4 — C ⁇ one, one CO— NR 4 — CO —, —CS— NR 4 — CS—, one S—S—, one CS—NR 4 — or _NR 4 — CS — (R 4 represents hydrogen or ( ⁇ _ 4 alkyl group)
- Q 1 is a hydrogen atom, an optionally substituted 35 alkyl group, an optionally substituted C 2 _ 35 alkenyl group, an optionally substituted C 3 _ 8 cycloalkyl group, an optionally substituted ( ⁇ _
- Z represents a natural amino acid residue or an optical isomer thereof.
- a method for treating liver damage which comprises administering a derivative of a peptide or a pharmacologically acceptable salt thereof to a mammal such as a human;
- X is the formula (4); H 2 N—Xt—CO— (X 1 is a C 4 alkylene group which may have a substituent, or at least one carbon atom of the C 4 alkylene group o, represents an organic group replaced with N or S.)
- R 1 and R 2 are the same or different and are —T 1 and Pi—Q 1 (wherein T 1 represents a divalent hydrocarbon group having 1 to 20 carbon atoms.
- P 1 is CO-, one S_ ⁇ 2 -, -CO one hundred and one, one O-CO-, one hundred and one, one CO- S-, one S- CO-, one CS- S-, - S- CS- one S-, -CO-NR 4 -, - NR 4 - CO-, one C_ ⁇ one NR 4 - CO one, one CS- NR 4 - CS-, - S- S-, one CS- NR 4 - or a NR 4 — CS (R 4 is hydrogen or Represents an alkyl group.
- Q 1 represents a hydrogen atom, optionally substitution ( ⁇ alkyl, optionally substituted C 2 _ 35 alkenyl group, optionally substituted C 3 - 8 cycloalkyl group, substituted also alkylene -C 3 - 8 cycloalkyl group, an optionally substituted C 6 _ i 4 even if ⁇ Li Ichirumotoma others an optionally substituted C 7 _ 16 Ararukiru group), -.
- Pi - Q 1 (wherein, P 1 and Q 1 are as defined above.) represents a or a Q 1 (in formula (I), Q 1 are as defined above.).
- R 1 or R 2 when either R 1 or R 2 is Q 1 , the other is —T 1 —P 1 —Q 1 (wherein T 1 P 1 and Q 1 are as defined above) or —P 1 — Represents Q 1 (wherein, P 1 and Q 1 are as defined above).
- ⁇ Represents a group represented by
- liver disorders including liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma, liver hematoma
- T 1 and R 2 are the same or different, one T 1 - P 1 -.
- Q 1 (wherein, T 1 represents a divalent hydrocarbon group of carbon number 1 to 20 P 1 is One CO—, —S0 2— , -CO One 0—, One hundred one CO—, One one, One CO—S—, One S—CO—, One CS—S—, One S—CS—, One NR 4 —, NR 4 — CO—, one CO— NR 4 — CO—, one CS— NR 4 — CS—, —S— S—, one CS— NR 4 — or one NR 4 - CS -.
- R 4 may represent hydrogen or an alkyl group
- Q 1 is a hydrogen atom, replacement by one may be 35 alkyl group, optionally C 2 _ substituted 35 alkenyl group, optionally substituted C 3 _ 8 cycloalkyl group, an optionally substituted alkylene - C 3 _ 8 cycloalkyl group, optionally substituted C 6 _ 14 ⁇ Li Ichirumotoma other good C 7 substituted - shows a 16 Ararukiru group).
- - P 1 - Q 1 (wherein, P 1 and Q 1 are as defined above.) Represents a or a Q 1 (In formula (I), Q 1 are as defined above.).
- R 1 or R 2 is Q 1 , the other is one T 1 —P 1 —Q 1 (wherein, 1 , 1 , P 1 and Q 1 are as defined above) or one P 1 — Q 1 (wherein, P 1 and Q 1 are as defined above).
- ⁇ represents a group represented by
- B and C When only one of B and C is an amino acid residue represented by the formula (1), the other is a natural amino acid residue or an optical isomer thereof.
- a polypeptide having an activity of increasing intracellular calcium ion concentration by binding to an amino acid sequence in which a corresponding portion or the amino acid sequence in which one or several amino acids have been deleted, substituted or added in the aforementioned portion, and binding to GHS-R Comprising administering to a mammal such as a human a derivative of the compound or a pharmacologically acceptable salt thereof. How to treat the disorder,
- liver damage is one or more diseases selected from the group consisting of hepatitis, cirrhosis, and liver failure.
- Treatment method wherein the hepatitis is one or more diseases selected from the group consisting of viral hepatitis, alcoholic hepatitis, drug-induced hepatitis, and self-immune hepatitis.
- liver damage (1) The method for treating liver damage according to any of (20) to (27) above, wherein the liver damage is a disease after liver transplantation, or
- (33) has an activity of increasing intracellular calcium ion concentration by binding to GHS-R for the manufacture of a medicament for preventing or treating liver damage, and has the activity of 1 amino acid sequence selected from the group consisting of amino acid sequences, or 1 to 4 amino acids other than amino acid residues 1 to 4 at the amino terminal in the amino acid sequence are deleted, substituted or added Use of a derivative of a polypeptide having a modified amino acid sequence or a salt thereof, (34) XYZ wherein X has a molecular chain length equivalent to an amino acid residue, dipeptide or tripeptide for the manufacture of a medicament for preventing or treating liver damage. , And (: represents an organic group consisting of one or more atoms selected from the group consisting of H, 0, N and S,
- Y is the following formula (1)
- R 1 and R 2 are the same or different, - T ⁇ - P 1 - .
- Q 1 (wherein, T 1 is P 1 representing a divalent hydrocarbon group of carbon number 1 to 20, one CO- one S_ ⁇ 2 -, -CO one O-, one O-CO-, one hundred and one, one CO- S-, one S_CO-, one CS- S-, - S- CS- one S —, One CO— NR 4 —, one NR 4 — CO—, one CO— NR 4 — CO—, —CS— NR 4 — CS—, one S—S—, one CS—NR 4 — or one NR 4 - CS one (R 4 is hydrogen or -.
- Q 1 represents a hydrogen atom, it may be substitution 5 alkyl group, optionally substituted C 2 one 35 alkenyl group, an optionally substituted C 3 _ 8 cycloalkyl group, a substituted alkylene one optionally C 3 _ 8 cycloalkyl group, an optionally C 6 ⁇ 4 Ariru group or be substituted substituted even represents an C 7 _ 16 Ararukiru group.
- P 1 - Q 1 (wherein, P 1 and Q 1 are as defined above.) Represents a or -Q 1 (In formula (I), Q 1 are as defined above.).
- R 1 or R 2 is Q 1
- the other is — ⁇ ⁇ — ⁇ 1 — Q 1 (wherein, ⁇ 1 ⁇ 1 and Q 1 are as defined above) or — P 1 — Represents Q 1 (wherein ⁇ 1 and Q 1 are as defined above).
- ⁇ represents a group represented by
- ⁇ represents a natural amino acid residue or an optical isomer thereof.
- Formula (3) for producing a medicament for preventing or treating hepatic disorder XYZ wherein X has a molecular chain length equivalent to an amino acid residue, dipeptide or tripeptide.
- Y is the following formula (1)
- R 1 and R 2 are the same or different, one ⁇ ⁇ - ⁇ 1 -.
- Q 1 (wherein, T 1 is P 1 representing a divalent hydrocarbon group of carbon number 1 to 20, — CO—, —S0 2 —, one CO _ ⁇ one, one O—CO—, one hundred, one C ⁇ _S—, one S—CO—, one CS—S—, one S—CS—, - S-, one C_ ⁇ - NR 4 -, - NR 4 - CO-, -CO- NR 4 - CO one, - CS- NR 4 - CS-, - S- S-, one CS-NR 4 - or 1 NR 4 — CS 1 (R 4 represents hydrogen or — 4 alkyl group.)
- Q 1 represents a hydrogen atom, an optionally substituted C ⁇ ss alkyl group, or an optionally substituted C 2 _ 35 alkenyl group, optionally substituted C 3 _ 8 cyclo
- Z represents a natural amino acid residue or an optical isomer thereof.
- a derivative of the polypeptide represented by SEQ ID NOS: 1 to 22 A portion corresponding to the amino acid sequence from the 5th amino terminal to the terminal lipoxyl terminal in the amino acid sequence, or an amino acid sequence in which one or several amino acids have been deleted, substituted or added in said portion, and use of a polypeptide derivative or a pharmaceutically acceptable salt thereof having an activity of increasing intracellular calcium ion concentration by binding to GHS-R,
- X is a group represented by the formula (4): H 2 N—X 1 —CO— (X 1 is a C 4 alkylene group which may have a substituent, or at least one carbon atom of the C 4 alkylene group; Represents an organic group substituted with ⁇ , N or S.) (34) or
- A—B—C—D wherein A and D are natural amino acid residues or optical isomers thereof, for the manufacture of a medicament for preventing or treating liver damage.
- B and C are one or both of the following formulas (1); R 1 NH——C—CO—— (1)
- T 1 represents a divalent hydrocarbon group of carbon number.
- P 1 is —CO—, — S ⁇ 2 —, -CO One, One, One CO—, One O—, One CO—S—, One S—CO—, One CS—S—, One S— CS—, One S—, One CO— NR 4 —, One NR 4 — CO—, One CO— NR 4 — CO One, —CS— NR 4 — CS—, — S—S—, One CS— NR 4 — or One NR 4 -.
- CS one (.
- R 4 may represent hydrogen or an alkyl group
- Q 1 is a hydrogen atom, replacement which may be an alkyl group, an optionally substituted C 2 _ 35 alkenyl group , optionally substituted C 3 _ 8 cycloalkyl group, optionally substituted ⁇ - e alkylene - C 3 - 8 cycloalkyl group, an optionally substituted C 6 _ 14 Ariru group or Others represents an C 7 _ 16 Ararukiru group which may be substituted. ), —P 1 —Q 1 (wherein P 1 and Q 1 are as defined above) or 1 Q 1 (wherein, Q 1 is as defined above).
- R 1 or R 2 when either R 1 or R 2 is Q 1 , the other is —T 1 -P 1 —Q 1 (wherein, D 1 , P 1 and Q 1 are as defined above) or —P 1 — Q 1 (wherein, P 1 and Q 1 are as defined above).
- ⁇ Represents a group represented by
- polypeptide derivative or a pharmaceutically acceptable salt thereof which has the activity of increasing intracellular calcium ion concentration by binding to GHSR-R,
- R 1 and R 2 are the same or different, - T 1 - P 1 - .
- Q 1 (wherein, T 1 represents a divalent hydrocarbon group of carbon number 1 to 20 P 1 is One CO—, —S ⁇ 2 —, -CO—O—, One O—CO—, One hundred one, One CO—S—, One S—CO—, One CS—S—, One S—CS—, —S—, —CO— NR 4 —, one NR 4 — CO-, one CO-NR 4 — CO —, one CS—NR 4 — CS—, one S—S—, — CS— NR 4 — or one NR 4 — CS — (R 4 represents hydrogen or ( ⁇ -4 alkyl group)
- Q 1 represents a hydrogen atom, an optionally substituted C i- 35 alkyl group, which may C 2 - 35 alkenyl group, optionally substituted C 3 _ 8 cycloalkyl group, optionally substituted Al
- B and C When only one of B and C is an amino acid residue represented by the formula (1), the other is a natural amino acid residue or an optical isomer thereof.
- a polypeptide derivative represented by SEQ ID NO: 1 to 22 in one amino acid sequence selected from the group consisting of A polypeptide having an activity of increasing intracellular calcium ion concentration by binding to an amino acid sequence in which a corresponding portion or the amino acid sequence in which one or several amino acids have been deleted, substituted or added in the aforementioned portion and binding to GHS-R Use of a derivative of or a pharmacologically acceptable salt thereof,
- liver disorder is one or more diseases selected from the group consisting of hepatitis, cirrhosis, and liver failure.
- hepatitis is one or more diseases selected from the group consisting of viral hepatitis, alcoholic hepatitis, drug-induced hepatitis and autoimmune hepatitis.
- a preventive or therapeutic agent for liver damage characterized by containing
- polypeptide derivative is a peptide consisting of the amino acid sequence of the first to fourth amino acids in one amino acid sequence selected from the group consisting of the amino acid sequences of SEQ ID NOS: 1 to 22.
- the polypeptide derivative is one amino acid sequence selected from the group consisting of the amino acid sequences of SEQ ID NOs: 1 to 22, the amino acid sequence from amino acid first to 10th amino acid sequence, or the amino acid residue
- a peptide comprising an amino acid sequence in which one to several amino acids have been deleted, substituted or added except for the first to fourth amino acid residues at the amino terminus in the ten amino acid sequences (46)
- a preventive or therapeutic agent for liver damage according to
- the polypeptide derivative is an amino acid sequence from the amino acid first to 15th amino acid sequence in one amino acid sequence selected from the group consisting of the amino acid sequences of SEQ ID NOS: 1 to 22, or the amino acid residue
- One to several amino acids other than the first to fourth amino acid residues at the amino terminus in a 15 amino acid sequence (4) is a peptide consisting of an amino acid sequence in which no acid has been deleted, substituted or added.
- the present invention also has an activity of increasing the intracellular calcium ion concentration by binding to GHSR-R.
- amino acid sequences represented by SEQ ID NOs: 1 to 22 (a) : The amino acid sequence from 1 to 4 at the amino terminus of the amino acid sequence selected from the amino acid sequences represented by 1 to 22, wherein the second or third amino acid residue from the amino terminus is as defined above.
- a derivative of the polypeptide having the formula (1) (b) the amino acids from the 1st to the 10th amino acids at the amino terminus of the amino acid sequence of 1 selected from the amino acid sequences represented by SEQ ID NOs: 1 to 22 In the sequence, the second or third amino acid residue from the amino terminus is a derivative of the polypeptide having the above formula (1), (c) selected from the amino acid sequences represented by SEQ ID NOS: 1-22. Amino terminal sequence of the amino acid sequence In the amino acid sequence from the 1st to the 15th amino acid, the second or third amino acid residue from the amino terminus is a derivative of the polypeptide having the above formula (1).
- (D) The 1 to 10 amino acid residues from the amino terminus An amino acid sequence in which one or several amino acids other than the first to fourth amino acid residues at the amino terminal of the amino acid sequence selected from the amino acid sequence up to the first amino acid are deleted, substituted or added.
- the second or third amino acid residue is a derivative of the polypeptide having the above formula (1), or (e) one amino acid sequence selected from the amino acid sequence of amino acids 1 to 15
- An amino acid sequence in which one or several amino acids other than the first to fourth amino acid residues at the amino terminal have been deleted, substituted or added, and the second or third amino acid residue from the amino terminal Is a prophylactic or therapeutic agent for hepatic injury containing a derivative of the polypeptide having the above formula (1) or a pharmaceutically acceptable salt thereof as an active ingredient, or any one of the above (a) to (e)
- a method for treating liver disorders which comprises administering a polypeptide derivative or a pharmacologically acceptable salt thereof to mammals such as humans, or manufacturing a medicament for preventing or treating liver disorders.
- a derivative of the polypeptide of any of the above (a) to (e) or a pharmacologically acceptable salt thereof for The use of a derivative of the polypeptide of any of the above (a) to (e) or
- FIG. 1 shows a flowchart of the first embodiment.
- FIG. 2 shows survival curves of the physiological saline administration group, the darelin 3 gZkg administration group, and the 30 g / g administration group in Example 1.
- FIG. 3 shows an optical micrograph of rat hepatocytes immunostained for the ki167 protein in Example 3.
- A is a photograph of the physiological saline administration group
- B is a photograph of the darelin administration group.
- amino acid refers to a compound having an amino group and a lipoxyl group in the same molecule. Contains amino acids.
- Natural amino acids refer to the twenty amino acids encoded by genes.
- the “unnatural amino acid” includes a compound in which the ⁇ -carbon in the ⁇ -amino acid has been modified. That is, the following formula (6):
- R ′ and R ′′ may be the same or different and represent any substituent or hydrogen atom not present in the natural amino acid, provided that R ′ and R ′′ are both hydrogen atoms Excludes )
- the unnatural amino acid may be L-integrated or D-isomer.
- Alkyl group means a straight-chain, cyclic or branched alkyl group
- “.alkyl group” means a straight-chain, cyclic or branched alkyl group having 1 to 35 carbon atoms.
- ( ⁇ Alkyl group” means a linear, cyclic or branched alkyl group having 1 to 20 carbon atoms, such as methyl, ethyl, propyl, isopropyl, cyclopropyl, butyl, sec-butyl, Isobutyl, tert-butyl, cyclobutyl, pentyl, isopentyl, tert-pentyl, neopentyl, cyclopentyl, 1-methylbutyl, hexyl, isohexyl, cyclohexyl, 3,3-dimethylbutyl, heptyl, cycloheptyl, 1 1-methylcyclohexyl, 1-propy
- 0 ⁇ 6 alkyl is, for example, methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl Linear or branched hydrocarbon groups having 1 to 6 carbon atoms such as tert-butyl, pentyl, isopentyl, tert-pentyl, neopentyl, 1-methylbutyl, hexyl, isohexyl or 1-methylpentane.
- C i-4 alkyl group include methyl, Echiru, propyl, isopropyl, heptyl, I Sobuchiru, sec- butyl or tert.
- a branched hydrocarbon group means "(: ⁇ alkyl group” is, for example, methyl, ethyl , Propyl, isopropyl, butyl, sec-butyl, isobutyl, tert-butyl, pentyl, isopentyl, tert-pentyl, neopentyl, 1-methylbutyl, hexyl, isohexyl, 1-methylpentane, 3,3-dimethylbutyl, heptyl, 1-propylbutyl, octyl, 1-methylheptyl, nonyl, decyl, pendecyl, dodecyl, tridecyl, tetradecyl, pencil decyl Or to means a linear or branched hydrocarbon group having from 1 to 1 to 6 carbon atoms, such as Kisadeshiru, "C 3 -
- Alkylene group means a linear or branched alkylene group having 1 to 20 carbon atoms, for example, methylene, ethylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, heptamethylene, octamethylene, decamethylene, Dodecamethylene or nonadecamethylene is mentioned.
- Ji 6 alkylene means methylene, ethylene, trimethylene, tetramethylene, a linear or branched divalent hydrocarbon group having 1 to 6 carbon atoms such as pentamethylene or to Kisamechiren.
- Aruke two alkylene group means a straight or branched alkenyl alkylene group having from 2 to 2 0 carbon atoms
- C 2 one 6 Aruke two alkylene represents a vinylene
- Purobe two Ren 1 Bute two It means a linear or branched divalent hydrocarbon group such as len, 2-butenylene, 1-pentenylene, 2-pentenylene or 3-pentenylene.
- alkynylene group 2 to be meaning taste to alkynylene groups having 2 0 carbon atoms, "C 2 _ 6 alkynylene” Echiniren, propynylene, 1 one butynylene, 2-butynylene, 1-pentylene two alkylene, It means a linear or branched divalent hydrocarbon group such as 2-pentenylene or 3-pentenylene.
- alkenyl group means a straight-chain or branched alkenyl group having 2 to 20 carbon atoms.
- alkenyl groups include, for example, vinyl, aryl, n-probenyl, isopropenyl, n-butenyl, isobutenyl, sec butenyl, tert butenyl, n-pentenyl, isopentenyl, neopentenyl, 1-methylpropenyl , N-hexenyl, isohexenyl, 1,1-dimethylbutenyl, 2,2-dimethylbutenyl, 3,3-dimethylbutenyl, 3,3-dimethylpropenyl, 2-ethylbutenyl, heptenyl, octyl Or heptane decanyl and the like.
- Aryl group means an aromatic carbocyclic ring or ring system having 6 to 14 carbon atoms.
- aryl groups include, for example, phenyl, 1- or 2-naphthyl, biphenyl, 1-, 2- or 9-anthryl, 1-, 2-, 3-, 4- or 9-phenanthryl, acenaphthyl, anthracenyl or Azulenyl and the like.
- Aralkyl group means a monocyclic aralkyl having 7 to 16 carbon atoms.
- Examples of the aralkyl group include, for example, benzyl, p-methoxybenzyl, 3,4-dimethoxybenzyl, o-nitrobenzyl, p-nitrobenzyl, benzhydryl, trityl, methylnaphthyl or ethyl-phenyl.
- the derivative of the polypeptide having an activity of increasing intracellular calcium ion concentration by binding to GH S-R in the present invention and having the amino acid sequence of SEQ ID NOS: 1-22 includes:
- amino acid sequence represented by SEQ ID NOs: 1 to 22 one or more (preferably several (up to five)) amino acids other than the first to fourth amino acid residues at the amino terminal (Ii) in the amino acid sequence represented by SEQ ID NOs: 1-22, in addition to the first to fourth amino terminal positions, one or two or more amino acids (preferably several amino acids); ( ⁇ 5)] amino acid sequence to which an amino acid is added, (iii) in the amino acid sequence represented by SEQ ID NOs: 1-22, 1 or 2 other than the first to fourth amino acid residues at the amino terminal
- An amino acid sequence in which at least one (preferably several (up to 5)) amino acids are substituted with another amino acid, or (iv) a polypeptide derivative containing an amino acid sequence obtained by combining them may be used.
- the amino acid added in (ii) and the amino acid substituted in (iii) may be unnatural amino acids.
- the derivative of the polypeptide according to any one of (i) to (iv) has an activity of increasing the intracellular calcium ion concentration by binding to GHSR-R or an activity of inducing the secretion of growth hormone. Is more preferred.
- a peptide in which some amino acids are preferably deleted from the amino acid sequences represented by SEQ ID NOs: 1 to 22 may be used.
- the peptide includes (V) a peptide consisting of the amino acid sequence of amino acids 1 to 4 in the amino acid sequence represented by SEQ ID NOS: 1 to 22, (vi) SEQ ID NOS: 1 to 22 A peptide consisting of the amino acid sequence from amino acid 1 to amino acid 10 in the amino acid sequence, or (vii) amino acid sequence represented by SEQ ID NOS: 1 to 22 And a peptide consisting of up to the amino acid sequence.
- amino acid sequence from amino acid first to 15th amino acid in the amino acid sequence represented by one or two or more amino acids other than the amino acid residues from amino acid first to fourth (preferably May be a peptide consisting of an amino acid sequence in which several (up to 5) amino acids have been deleted, substituted or added.
- the amino acids added or substituted may be non-natural amino acids. More preferably, the peptide according to (viii) or (ix) has an activity of increasing intracellular calcium ion concentration or an activity of inducing growth hormone secretion by binding to GHSR.
- the second or third amino acid residue from the amino terminal is represented by the following formula (1):
- R 1 and R 2 are the same or different, - T ⁇ -.
- Q 1 represents a hydrogen atom, an optionally substituted 5 alkyl group, an optionally substituted C 2 _ 35 alkenyl group, an optionally substituted C 3 _ 8 cycloalkyl group, a substituted alky
- P 1 - Q 1 (wherein, P 1 and Q 1 are as defined above.) Represents a or single Q 1 (In formula (I), Q 1 are as defined above.). However, when either R 1 or R 2 is Q 1 , the other is —T 1 -P 1 —Q 1 (wherein, D 1 , P 1 and Q 1 are as defined above) or —P 1 — Q 1 (wherein, P 1 and Q 1 are as defined above).
- polypeptide derivative I a polypeptide derivative having an activity of increasing intracellular calcium ion concentration by binding to GHS-R. This is a preferred embodiment.
- Examples of the “divalent hydrocarbon group” represented by T 1 include a linear or branched alkylene group having 1 to 20, preferably 1 to 10, and more preferably 1 to 6 carbon atoms, 2 to 20 carbon atoms.
- the above “divalent hydrocarbon group” may have a substituent.
- an optionally substituted alkyl group is preferred.
- the position and number of the substituent are not particularly limited as long as they are chemically permissible.
- the number of the substituents is preferably about 1 to 4.
- the substituent of the “phenylene group” is, for example, a halogen atom (for example, fluorine
- the group represented by P 1 is — CO— O—, — O— CO—, — O—, — S—, -ss One, —CO—NR 4 — or one NR 4 —CO— (R 4 represents hydrogen or a C 4 alkyl group) is preferable, and one-dimensional CO— is particularly preferable.
- alkyl group represented by Q 1 is: Linear or branched alkyl groups are preferred. More preferably, a straight-chain or branched alkyl group is preferred, and a C 7 alkyl group is particularly preferred.
- alkenyl group for Q 1 is preferably C 2 _ 2 .
- Linear or branched alkenyl groups are preferred.
- Examples of the substituent which may be substituted in the “alkyl group” or “alkenyl group” for Q 1 include, for example, rho, a logen atom, a carbonyl group, a hydroxyl group, an amino group, a nitro group, a cyano group, methoxy, and ethoxy.
- acyloxy group mercapto group; methylthio, 6- alkylthio groups such as ethylthio, propylthio, butylthio, and isobutylthio; amino groups; methylamino, ethylamino, propylamino, butylamino and the like — 6-alkylamino groups; amide group; a halogenated alkyl group such as triflate Ruo Russia methyl; methyl sulfonyl, C ⁇ _ 6 alkyl such Echirusuruhoniru -; force Rupokishi group 7 alkoxy force Ruponiru group Metokishika Ruponiru, C 2, such as ethoxy Cal Poni Le, propoxy Cal Poni Le a sulfonyl group; Aminosuruho alkylsulfonyl group; C 3 - 7 cycloalkyl group;
- Hue is a two alkylene substituents of the "but it may also be substituted ( ⁇ _ 6 alkylene one C 3 _ 8 cycloalkyl group", ( ⁇ _ 6 alkyl Le moiety. may have can be exemplified the same substituents as substituents of the alkyl groups mentioned above as substituents of C 3 _ 8 may be a cycloalkyl group moiety has.
- ci one 6 alkyl moiety as the c 3 _ 8 cycloalkyl group moiety may be exemplified the same substituents as substituents of the above-described cycloalkyl group.
- the second or third amino acid residue from the amino terminal is represented by the following formula (2):
- R 3 is, - T 2 - P 2 - Q 2 (wherein, T 2 represents - 6 alkylene group, C 2 - 6 ⁇ Luque two alkylene groups, alkylene -.
- T 2 represents - 6 alkylene group, C 2 - 6 ⁇ Luque two alkylene groups, alkylene -.
- P 2 is — CO— O—, — O— CO—, one hundred, one S—, one S—S—, one CO— NR 4 — or one NR 4 — CO— (R 4 represents hydrogen or an alkyl group).
- Q 2 may be substituted.
- Alkyl group optionally substituted C 2 _ 2 .
- Alkenyl group which may be substitution C 3 - 8 cycloalkyl group, an optionally substituted ( ⁇ _ 6 alkylene one C 3 _ 8 cycloalkyl group, an optionally substituted C 4 Ariru group or replacement which may be C 7 -. represents a 16 Ararukiru group) or - P 2 - Q 2 (wherein, P 2 and Q 2 represent the same meanings as defined above).
- the substituent R 3 when the substituent R 3 is —T 2 —P 2 —Q 2 , the substituent T 2 is a C 6 alkylene group or Alkylene-phenylene is preferred, and methylene, ethylene, propylene, butylene or methylene-phenylene is more preferred.
- the substituent P 2 when the substituent R 3 is —T 2 —P 2 —Q 2 or one P 2 —Q 2 , the substituent P 2 is —CO—O—, —O—C ⁇ , — S- S-, - CO- NR 4 - or - NR 4 - CO- (R 4 is hydrogen or -.
- the substituents Q 2 is optionally substituted ( ⁇ -2 An alkyl group (preferably a Ci-alkyl group, particularly preferably a C 7 alkyl group) or an optionally substituted C 2 _2 () alkenyl group, or the substituent P 2 is —O— or —S - a, 2 substituent Q 2 to maintain good optionally substituted alkyl group, an optionally substituted C 2 _ 2 alkenyl groups, optionally substituted C 3 -..
- the Q group substituted substituent be in represented by 2 is the same as the substituent for substituting the group represented by Q 1.
- amino acid residues are also suitable as the second or third amino acid residue from the amino terminal in the derivative I of the polypeptide of the above embodiment.
- the side chain hydroxyl group one OCO- Q 2 of, - OCS- Q 2 or - 0- Q 2 (Q 2 has the same meaning as defined.) Varying the substituent represented by Replaced serine, threonine, tyrosine or oxyproline and the like.
- an amino acid residue in which a mercapto group of an amino acid residue having a mercapto group in a side chain forms thioester, thioether, disulfide, or the like is exemplified.
- one SCO- Q 2, -SCS-Q 2 , - S- Q 2 or - S _S- Q 2 (Q 2 has the same meaning as defined.) Is converted to a substituent represented by And cysteine.
- the amino group in the side chain is _NR 4 —C ⁇ —Q 2 , one NR 4 -CS-Q 2 , -NH (Q 2 ), one N (Q 2 ) (Q 2 '), —NR 4 - CO- NR 4 - Q 2 , - NR 4 - CS- NR 4 -.
- Q 2 (Q 2 and R 4 are as defined above Q 2 'is, Q 2 and may be the same or different, and Q 2 Lysine or arginine converted to a substituent represented by
- amino acid residues in which the imino group of the amino acid residue having an imino group in the side chain forms an alkylamino, dialkylamino, amide, carbamoyl, or the like.
- the imino group in the side chain has the following formula;
- the second or third amino acid residue from the amino terminus has a side chain hydroxyl group of — ⁇ C ⁇ —Q 2 , — ⁇ CS—Q 2 or —O—Q 2 (where Q 2 is as defined above) .
- Second or third amino acid residue from the Amino-terminal has a hydroxyl is one OCO- Q 2 in the side chain, ⁇ OCS- Q 2 or Or a cysteine in which the mercapto group in the side chain is converted to a substituent represented by one SCO—Q 2 (Q 2 is as defined above). Is more preferred.
- a preferred embodiment includes an amino acid residue in which a fatty acid is ester-bonded to a hydroxyl group in a side chain.
- examples of the amino acid having a hydroxyl group in the side chain include serine, threonine, tyrosine and oxyproline, among which serine or threonine is preferable, and serine is particularly preferable.
- the fatty acid may be saturated or unsaturated, and the number of carbon atoms is preferably 2 to 36, more preferably 2 to 21, and still more preferably 2 to 17.
- Such fatty acids include, for example, acetic acid, butyric acid, isobutyric acid, valeric acid (pentanoic acid), isovaleric acid, pivalic acid, caproic acid (hexanoic acid), and octanoic acid (preferably Saturic acid, sorbic acid, oleic acid, etc.
- unsaturated fatty acids such as linoleic acid, linolenic acid, ricinolenic acid, arachidonic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).
- acetic acid, butyric acid, cabronic acid (hexanoic acid) and octanoic acid preferably caprylic acid
- octanoic acid is particularly preferred.
- Derivatives I of the above polypeptide include darelin of human and the like, and amino acid sequences represented by SEQ ID NOS: 1 to 22 that constitute ghrelin, SEQ ID NO: 1
- the serine, threonine or leucine at the second or third position from the amino terminal of the amino acid sequence represented by 22 has the above formula (1), and binds to GHSR-R, whereby calcium in the cell is increased.
- a polypeptide derivative having an activity of increasing the ion concentration is preferably mentioned.
- polypeptide derivative I the amino acid sequence represented by SEQ ID NOS: 1 to 22 constituting the above-mentioned dallelin of human or the like is represented by the amino terminal of the amino acid sequence represented by SEQ ID NOs: 1 to 22.
- An amino acid sequence in which one or more (preferably several (2 to 5)) amino acids are deleted, added or substituted, or a combination thereof, other than the first to fourth amino acid residues of A second or third derivative from the amino terminus is a derivative of a polypeptide having the above formula (1) and having an activity of increasing the calcium ion concentration in cells by binding to GHSR-R. Is also good.
- the amino acid or Z added and the substituted amino acid in the above may be an unnatural amino acid.
- amino acid sequence selected from the amino acid sequences represented by SEQ ID NOS: 1 to 22 constituting the ghrelin of human or the like (a) the amino acid represented by the sequence number: 1 to 22; A derivative of a polypeptide having an amino acid sequence from the first to the fourth amino terminal in the sequence, wherein the second or third amino acid from the amino terminal has the above formula (1), and Having an activity of increasing intracellular calcium ion concentration by binding, (b) having an amino acid sequence from amino acid 1 to amino acid 10 at the amino terminal represented by SEQ ID NOS: 1 to 22 A derivative of a polypeptide, wherein the second or third from the amino terminal has the above formula (1), and binds to GHS-R to reduce the intracellular calcium ion concentration.
- (C) a polypeptide derivative having an amino acid sequence from amino acid terminal 1 to 15 in the amino acid sequence represented by SEQ ID NOS: 1 to 22,
- the second or third from the amino terminal has the above formula (1), and binds to GHS-R to allow intracellular Those having the activity of increasing the calcium ion concentration can also be preferably used.
- amino acid sequence selected from the amino acid sequences represented by the above SEQ ID NOs: 1 to 22 in the amino acid sequence from the first amino acid to the 10th amino acid, as described above, A polypeptide having an amino acid sequence in which one or more (preferably several (2 to 5)) amino acids have been deleted, substituted or added except for the first to fourth amino acid residues at the terminal A derivative having the formula (1) at the second or third position from the amino terminal and having an activity of increasing the intracellular calcium ion concentration by binding to GHSR-R.
- Peptide derivative or (e) In the amino acid sequence of amino acids 1 to 15 at the amino terminus, as described above, one or two or more amino acids other than amino acid residues 1 to 4 at the amino terminus [Preferred Or several (2 to 5)] amino acids deleted, substituted or added, and the second or third from the amino terminal has the above formula (1).
- amino acids 1 to 15 at the amino terminus as described above, one or two or more amino acids other than amino acid residues 1 to 4 at the amino terminus [Preferred Or several (2 to 5)] amino acids deleted, substituted or added, and the second or third from the amino terminal has the above formula (1).
- those having an activity of increasing intracellular calcium ion concentration by binding to GHS-R can also be preferably used.
- the added or substituted amino acids may be unnatural amino acids.
- the formula (3) X—Y—Z wherein X has a molecular chain length equivalent to an amino acid residue, dipeptide or tripeptide; Represents an organic group consisting of one or more atoms selected from the group consisting of S,
- Y is the following formula (1)
- R 1 and R 2 are the same or different and one T 1 and one P i—Q 1 (where TP And Q 1 are as defined above. ), One P 1 —Q 1 (wherein, P 1 and Q 1 are as defined above) or —Q 1 (wherein, Q 1 is as defined above),
- Z is a natural amino acid residue or its optical isomer, and Q 1 is as defined above. ).
- polypeptide derivative II having an activity of increasing intracellular calcium ion concentration by binding to GHS-R
- polypeptide derivative II can also be preferably used.
- the molecular chain length varies by about ⁇ 20%, preferably about 10%, depending on the bonding mode of the atoms C, ⁇ , N, and S constituting the molecular chain length.
- R is the same as defined above. Note that R may be the same or different for each repeating unit.
- R is the same as the above definition. In addition, even if R is the same for each repeating unit, it may be different fc.
- X preferably has a molecular chain length equivalent to an amino acid residue or a peptide, and more preferably has a molecular chain length equivalent to a peptide.
- X represents a formula (4); HsN—X 1 —C ⁇ _ (X 1 represents a C 4 alkylene group which may have a substituent, or at least one carbon atom of the C 4 alkylene group; Represents an organic group substituted with 0, N or S.).
- R 5 and R 6 are identical to the repeating unit your capital, substituents represented by may be different.) or the substituent, And at least one of the four repeating units in the formula is (NR 7 ), wherein R 7 is an optionally substituted — 6 alkyl group or an optionally substituted C 2 — 6 alkenyl group Or a substituent substituted by O.
- X 1 for example, one (CH 2 ) 3 CH (CH 2 ⁇ H) —, one (CH 2 ) 4 — , — C (CH 3 ) 2 — (CH 2 ) 3 — or one CH (CH 3 ) one (CH 2 ) 2 — CH (CH 3 ) —, one CH 2 — CH 2 — O-CH 2 —, — CH 2 - CH 2 - S- CH 2 _ One CH 2 - N (CH 3) - CH 2 - CH 2 -, - CH 2 - O- CH (CH 2 OH) -CH 2 - and No.
- examples of Y include the same examples as the groups represented by the formula (1) possessed by the second or third amino acid residue from the amino terminal of the derivative I of the above polypeptide.
- Z is not particularly limited as long as it is a natural amino acid residue or its optical isomer, but a hydrophobic natural amino acid or its D-isomer is preferable.
- the hydrophobic natural amino acid include leucine, parin, isoleucine, tryptophan and phenylalanine, and among them, aromatic hydrophobic amino acids such as tributophan or phenylalanine are preferable.
- Z is also preferably a basic natural amino acid such as lysine, arginine or histidine, and more preferably lysine.
- a peptide compound having a structure represented by the formula (3); XYZ (where X, Y and Z have the same meanings as described above) comprises an amino acid sequence represented by SEQ ID NOS: 1 to 22.
- a portion corresponding to the amino acid sequence from the 5th amino terminus to the lipoxyl terminus in one amino acid sequence selected from the group or 1 or 2 or more in said portion [preferably several (2 to 5 )]] A polypeptide derivative (hereinafter, referred to as polypeptide derivative III) having a structure in which the amino acid sequence in which the amino acid sequence is deleted, substituted or added is also mentioned as another preferred embodiment.
- the derivative of the polypeptide having the structure represented by the formula (3); X_Y—Z (where X, ⁇ , and ⁇ have the same meanings as described above) is a derivative of the polypeptide.
- the statement for II applies.
- a portion corresponding to the amino acid sequence from the 5th to the 15th amino terminal or at least one or more (preferably Amino acid sequences in which several (2 to 5) amino acids have been deleted, substituted or added are mentioned as preferred examples.
- polypeptide derivative IV A polypeptide derivative having the structure represented by the following formula (hereinafter, referred to as polypeptide derivative IV) can also be preferably used.
- the group when B or C is a group represented by the formula (1), the group may be a second or third amino acid residue from the amino terminal of the derivative I of the polypeptide.
- B When only C is a group represented by the formula (1), B may be a natural amino acid residue or an optical isomer thereof. Among them, alanine, serine, histidine or a D-amino acid having a small side chain is preferred. Body or glycine is preferred.
- C is a natural amino acid residue
- any optical isomer may be used, and among them, a hydrophobic natural amino acid or a basic natural amino acid, or a D-isomer thereof is preferable.
- A may be a natural amino acid residue or its optical isomer, and glycine is particularly preferable.
- D may be a natural amino acid residue or an optical isomer thereof, and among them, a hydrophobic natural amino acid or a basic natural amino acid, or a D-isomer thereof is preferable.
- a derivative of a polypeptide having a structure represented by the formula (5); A—B—C—D (where A, B, C, and D have the same meanings as described above) is represented by SEQ ID NO: : A portion corresponding to the amino acid sequence from the fifth amino terminal to the terminal lipoxyl in one amino acid sequence selected from the group consisting of the amino acid sequences described in 1 to 22, or 1 or 2
- Derivative of a polypeptide having a structure in which at least one (preferably several (2 to 5) amino acids are deleted, substituted or added) are linked to each other hereinafter referred to as polypeptide derivative V). Is also mentioned as another preferred embodiment.
- Polypeptide derivative V binds to a polypeptide derivative having a structure represented by the formula (5); A—B—C—D (where A, B, C and D are as defined above).
- Preferred examples include amino acid sequences in which one or more (preferably several (2 to 5)) amino acids have been deleted, substituted or added in the portion corresponding to the amino acid sequence of the above or in the aforementioned portion.
- a basic amino acid may be further bound to the lipoxyl terminal.
- the basic amino acid include the above-mentioned basic natural amino acids such as lysine, arginine and histidine, or their D-forms, or their D- or L-N-methyl amino acids.
- the carboxyl group at the terminal end of the lipoxyl group may form a salt, ester or amide.
- the salt is preferably a pharmaceutically acceptable salt.
- Pharmaceutically acceptable salts include, for example, salts with inorganic bases, salts with organic bases, salts with inorganic acids, salts with organic acids, salts with basic or acidic amino acids, and the like.
- the salt with an inorganic base include an alkali metal salt such as a sodium salt and a potassium salt; an alkaline earth metal salt such as a calcium salt and a magnesium salt; and an aluminum salt and an ammonium salt.
- salts with an organic base include, for example, trimethylamine, triethylamine, pyridine, picoline, ethanolamine, diethanolamine, triethanolamine, dicyclohexylamine, ⁇ , ⁇ '-dibenzylethylenediamine And the like.
- Preferred examples of salts with inorganic acids include, for example, salts with hydrochloric acid, hydrobromic acid, nitric acid, sulfuric acid, phosphoric acid, and the like.
- salts with organic acids include, for example, formic acid, acetic acid, trifluoroacetic acid, fumaric acid, oxalic acid, tartaric acid, maleic acid, citric acid, succinic acid, malic acid, maleic sulfonic acid, benzenesulfonic acid, p — Salts with toluenesulfonic acid and the like.
- Preferred examples of the salt with a basic amino acid include, for example, salts with arginine, lysine, orditin and the like.
- Preferred examples of the salt with an acidic amino acid include, for example, aspartic acid, glutamic acid, and the like. Salts. Among these salts, Acetates, sodium salts and potassium salts are most preferred.
- the amide may be represented by the formula: CON (R 9 ) (R 1Q ) (R 9 or R 1G may be the same or different and is hydrogen, ( 6 And an amide represented by an alkyl group, a C 2 _ 6 alkenyl group, a ⁇ 6 _ 14 aryl group, or a C 7 _ 16 aralkyl group.) Particularly preferred is _C ⁇ NH 2 .
- a basic group such as an amino group or a guanidide group may be further bound to the ester or the amide.
- Ghrelin derived from rat [a derivative of a polypeptide in which the serine residue at position 3 of the amino acid sequence represented by SEQ ID NOs: 3 and 4 is acylated with acetic acid, butyric acid, valeric acid, octanoic acid or decanoic acid. ];
- Ghrelin derived from mouse [a derivative of a polypeptide in which the serine residue at position 3 of the amino acid sequence represented by SEQ ID NO: 5 is acylated with octanoic acid or decanoic acid. ];
- Pig-derived darelin a derivative of a polypeptide in which the serine residue at position 3 of the amino sequence shown in SEQ ID NOs: 6 and 7 is acylated with octanoic acid or decanoic acid.
- Darrell derived from Psi a derivative of a polypeptide in which the serine residue at position 3 of the amino acid sequence represented by SEQ ID NO: 8 is acylated with octanoic acid or decanoic acid].
- Darrell derived from hidge a derivative of a polypeptide in which the serine residue at position 3 of the amino acid sequence represented by SEQ ID NO: 9 is acylated with octanoic acid or decanoic acid. .];
- Canine-derived darelin [a polypeptide derivative in which the serine residue at position 3 of the amino acid sequence represented by SEQ ID NO: 10 is acylated with oxalic acid or decanoic acid; ];
- Dalelin derived from green onion [Derivative of a polypeptide in which the serine residue at position 3 of the amino acid sequence represented by SEQ ID NO: 11 is acylated with octanoic acid or decanoic acid. ];
- Chicken-derived darelin [a derivative of a polypeptide in which the serine residue at position 3 of the amino sequence represented by SEQ ID NOs: 14, 15, and 16 is acylated with octanoic acid or decanoic acid. ];
- Darrell derived from Lactyl [a derivative of a polypeptide in which the threonine residue at position 3 of the amino sequence represented by SEQ ID NOs: 17 and 18 is acylated with octanoic acid or decanoic acid. ];
- Dallerin derived from tilapia [a polypeptide derivative in which the serine residue at position 3 of the amino acid sequence represented by SEQ ID NO: 19 is acylated with octanoic acid or decanoic acid. ];
- Catfish-derived darelin [a derivative of a polypeptide in which the serine residue at position 3 of the amino sequence represented by SEQ ID NOs: 20 and 21 is acylated with octanoic acid or decanoic acid. ]; Or
- Dahrelin derived from ⁇ (serine residue at position 3 of the amino acid sequence represented by SEQ ID NO: 22 is butyric acid
- Derivatives of polypeptides acylated with oxalic acid or decanoic acid. More preferably human, rat, mouse, bush, seaweed, hidge, dog or dog-derived darelin, and particularly preferably human-derived darelin.
- HA i bH is -D Na 1 -D Ph e-Ly s-NH 2 ;
- the above darelin or polypeptide derivative according to the present invention can be obtained by a known method.
- a method of isolating from natural materials a method of using recombinant DNA technology, a method of chemically synthesizing, a method of combining recombinant DNA technology and chemical synthesis, and the like can be mentioned.
- a method for isolating ghrelin from a natural source for example, a method for culturing darrellin-producing cells in the digestive tract to isolate and purify ghrelin can be mentioned.
- a host cell capable of modifying the side chain of at least one amino acid residue in a peptide represented by a gastrointestinal tract cell or the like by a vector containing the darelin gene is used. Then, a method of culturing the obtained transformed cells and collecting the target polypeptide derivative from the culture can be mentioned.
- Chemical synthesis methods include solid phase synthesis methods and liquid phase synthesis methods commonly used in the art. And so on.
- a method of combining the recombinant DNA technology and chemical synthesis there is a method in which a part of ghrelin is manufactured by a chemical synthesis method, the remaining is manufactured by a genetic engineering method, and the two are condensed. More specifically, the method for producing the derivative of the polypeptide according to the present invention includes the methods described in WO 01/07475 and Japanese Patent Application No. 2003-163533. Is mentioned.
- a known method can be used to measure the intracellular calcium ion concentration.
- the change in the fluorescence intensity of Fluo-4 AM (Molecular Probe) due to the change in the calcium ion concentration is determined by the FLIPR using J (Fluorometric Imaging Plate Reader, Molecular Devices) or FLEX station TM (Molecular Devices) is preferred.
- a test substance is added to pituitary cells, which have been confirmed to secrete GH and express GH S-R, to convert GH secreted into the cell culture into an anti-GH antibody. Measurement by radioimnoassy using the method.
- radioimmunoassay method if an antibody against another hormone is used instead of the anti-GH antibody, the secretion amount of the hormone can be measured.
- the GH concentration in the serum after the test substance is injected into the peripheral vein of an animal (eg, rat) may be measured.
- the preventive or therapeutic agent for liver damage according to the present invention includes a derivative of the above polypeptide, or a pharmacologically acceptable salt thereof.
- the pharmacologically acceptable salt include the same salts as those described above.
- the agent for preventing or treating hepatic disorder of the present invention may contain a derivative of a polypeptide or a pharmacologically acceptable salt thereof, and is usually combined with these active ingredients in a pharmacologically well-known manner. A mixture with an acceptable carrier is used.
- compositions comprising the active ingredient and, if desired, a pharmacologically acceptable carrier include, for example, solid preparations such as tablets, pills, powders, granules and capsules; injections and syrups; Liquid preparations; known forms such as suppositories, eye drops, nasal drops, lozenges, external preparations, and external preparations such as aerosols.
- the preventive or therapeutic agent for liver damage of the present invention Preferably has the form of injections, nasal drops, aerosols and the like.
- the injection may have a form in which a lyophilized preparation containing the active ingredient of the present invention and, if desired, a pharmacologically acceptable carrier is dissolved in a solvent at the time of use.
- Pharmaceutically acceptable carriers include various organic or inorganic carrier materials commonly used as pharmaceutical materials, such as excipients, lubricants, binders, and disintegrants in solid preparations; solvents and dissolution aids in liquid preparations. Formulation, suspending agent, tonicity agent, buffering agent, soothing agent, etc. If necessary, preparation additives such as preservatives, antioxidants, coloring agents and sweeteners can also be used.
- Preferable examples of the excipient include lactose, sucrose, D-mannitol, starch, crystalline cellulose, light caffeic anhydride, dextran and derivatives thereof.
- Preferred examples of the lubricant include, for example, magnesium stearate, calcium stearate, talc, colloidal silica and the like.
- Preferred examples of the binder include crystalline cellulose, sucrose, D-mannitol, dextrin, hydroxypropylcellulose, hydroxypropylmethylcellulose, polyvinylpyrrolidone, dextran and derivatives thereof.
- the disintegrant include, for example, starch, carboxymethylcellulose, carboxymethylcellulose calcium, croscarmellose sodium, carboxymethylsuccess sodium and the like.
- suitable coating agents for granules and tablets, suitable coating agents (gelatin, sucrose, gum arabic, carnapalow, etc.), enteric coating agents (for example, cellulose acetate phthalate, copolymer methacrylate, hydroxypropylcellulose phthalate, carboxymethyl ester) (Eg, chill cellulose).
- the capsule may be an ordinary coated capsule, an enteric coated capsule, a gastric resistant capsule, or a controlled release capsule.
- an ordinary capsule is filled with a preventive / therapeutic agent for hepatic disorder of the present invention coated with an enteric coating agent, to which an appropriate excipient is added.
- a capsule coated with an enteric coating agent or a turnip molded based on an enteric polymer The cell can be filled with the agent for preventing or treating liver injury of the present invention.
- the solvent include water for injection, alcohol, propylene glycol, macrogol, sesame oil, corn oil and the like.
- Preferred examples of the solubilizer include, for example, polyethylene glycol, propylene glycol, D-mannitol, benzyl benzoate, ethanol, trisaminomethane, cholesterol, trietanolamine, sodium carbonate, sodium citrate and the like.
- the suspending agent include surfactants such as stearyltriethanolamine, sodium lauryl sulfate, laurylaminopropionic acid, lecithin, benzalkonium chloride, benzethonium chloride and glycerin monostearate;
- examples include hydrophilic polymers such as alcohol, polyvinylpyrrolidone, sodium carboxymethylcellulose, methylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, and hydroxypropylcellulose.
- the isotonic agent include sodium chloride, glycerin, D-mannitol and the like.
- Preferred examples of the buffer include buffers such as phosphate, acetate, carbonate, and citrate.
- Preferred examples of the soothing agent include benzyl alcohol and the like.
- Preferable examples of preservatives include, for example, paraoxybenzoic acid esters, chlorobutanol, benzyl alcohol, phenethyl alcohol, dehydroacetic acid, sorbic acid and the like.
- Preferable examples of the antioxidant include sulfite, ascorbic acid and the like.
- the drug of the present invention is in the form of a suppository, a lipophilic base, a water-soluble base or an emulsion base, the active ingredient of the present invention, and if desired, for example, a local anesthetic, Contains histamines, topical astringents, sulfa drugs, antibiotics, wound treatments, surfactants, biotins, herbal extracts, bile acids, preservatives, excipients, absorption enhancers, amino acids, etc.
- the drug according to the present invention can be produced.
- pharmaceutically acceptable carriers include, for example, buffers, stabilizers, preservatives, pH adjusting agents, solvents, solubilizing agents, Wear Perfumes, gelling agents, flavoring agents, cooling agents and the like can be mentioned.
- the solvent examples include glycerin, propylene glycol, ethanol, isopropanol, butylene glycol, water, sorbitol, mannitol, xylyl, glucose, epsilon aminocaproic acid, daricin, glutamate, sodium hyaluronate, Polyethylene glycols, carboxylic acid polymers, higher alcohols such as styrene and stearyl alcohol, medium chain fatty acid esters, fatty acid esters such as isopropyl myristate, higher fatty acids such as stearic acid, squalane, Examples include liquid paraffin, white serine or purified lanolin.
- An aerosol can be produced by using the above-mentioned external preparation together with a general propellant.
- Dimethyl ether commonly used in aerosol as propellant it may be mentioned Ekyi ⁇ petroleum gas, N 2 gas, nitrous oxide gas, C 0 2 gas, and alternative flon.
- Compressed air can also be used without using a propellant. Also, a mixture of these may be used.
- the polypeptide derivative of the present invention or a pharmacologically acceptable salt thereof has low toxicity and is a human or non-human mammal (eg, mouse, rat, rabbit, dog, cat, dog, dog). , Pigs, monkeys, etc.).
- the dosage varies depending on the patient's symptoms, nutritional status, age, body weight, concomitant medications, etc., and cannot be unconditionally determined.However, in the case of parenteral administration to adults, preferably one day for intravenous, subcutaneous or intramuscular injection About 0.001 to: L 0 O mg, preferably about 0.01 to: LO mg, more preferably about 0.1 to 1 O mg. It is desirable to administer this amount once to several times a day.
- the agent of the present invention is preferably administered to a patient intravenously, subcutaneously, or intramuscularly.
- oral administration, nasal administration, pulmonary administration, and suppository administration are desirable.
- the administration period is preferably about 4 to 24 weeks, more preferably about 4 to 12 weeks.
- the agent for preventing or treating liver damage according to the present invention is particularly effective for hepatitis, cirrhosis or liver failure.
- Hepatitis includes viral hepatitis, alcoholic hepatitis, drug hepatitis or Autoimmune hepatitis and the like.
- the agent for preventing or treating liver damage according to the present invention utilizes the hepatocyte proliferation-promoting action of a polypeptide derivative or a pharmaceutically acceptable salt thereof to achieve liver regeneration and liver function after liver surgery. It can also be used as a recovery promoter. Specific examples of liver surgery include hepatectomy. Example
- DN Dimethylnitrosamine
- FIG. 1 shows the flow over time of this example. .
- DMN Dilute DMN (manufactured by Wako Pure Chemical Industries, Ltd.) to a concentration of 1% (vZv) with physiological saline (manufactured by Otsuka Pharmaceutical Factory Co., Ltd., physiological saline solution of Japan Pharmaceutical Co., Ltd.) and prepare DMN at the time of use. It was intraperitoneally administered to male rats (4 weeks of age) so as to obtain LZ kg. The administration was repeated once a day for 3 consecutive days for 3 consecutive days for 6 weeks, and the first administration day was designated as d ay 1.
- Rat Darellin (purchased from Peptide Research Laboratories, Inc.) is dissolved in 5% by weight mannitol as a solvent so that its concentration becomes lm gZmL, and then dispensed per required amount and used. The solution was stored frozen at about 180 ° C. It was thawed at the time of use and diluted with physiological saline to a concentration of 30 and 3 g ZmL to prepare a solution for administration. (3) Darrelin administration
- the dosing solution containing darrellin 3; ⁇ gZ mL or the dosing solution containing 30 g mL of darrellin prepared in (2) was administered subcutaneously subcutaneously to the back of 1 mL of each kg.
- saline containing no darelin was subcutaneously administered to the DMN-treated rat obtained in (1) subcutaneously on the back of lmLZkg. The administration was performed once a day from the first DMN administration day (day 1) every day for 8 weeks.
- FIG. 2 shows the survival curves of the physiological saline administration group, the darelin 3 ⁇ gZkg administration group, and the 30 ng / kg administration group.
- death began to occur on the 40th day after treatment was started, and on the 56th day, half died.
- 75% of the rats in the darelin 3 g / kg group survived on day 56 and all survived in the darelin 30 gZkg group.
- darelin was found to have an effect of dramatically reducing mortality in DMN-induced liver fibrosis and cirrhosis models.
- Example 2 The experiment was performed in the same manner as in Example 1 except that the administration days were changed from 8 weeks to 35 days, and the effects of rat ghrelin on liver damage were evaluated from the viewpoints of organ weight, hematology and serum biochemistry.
- a group without DMN treatment normal rats was set as a control group.
- Table 1 shows the organ weight and ascites appearance frequency before and after subcutaneous injection of saline or ghrelin in DMN-induced hepatic fibrosis rats together with data from normal rats.
- the liver weight of the group administered with saline and dallelin at 3 X g / kg decreased, whereas the liver weight of the ghrelin 30 / g / kg administration group tended to suppress the decrease in liver weight.
- the spleen weight increased about 2 times more in the saline and darelin 3 g / kg groups than in normal rats, but the increase was slightly suppressed in the darelin 30 g / kg group.
- the appearance of ascites was slightly less than half observed in the saline administration group, but not in the ghrelin 30 X g / kg administration group.
- Table 2 shows hematological data before and after subcutaneous injection of saline or ghrelin in DMN-induced hepatic fibrosis rats, together with data from normal rats.
- Table 3 shows the coagulation and fibrinolysis data before and after subcutaneous injection of saline or ghrelin in DMN-induced hepatic fibrosis rats, together with data from normal rats.
- the saline administration group showed a decrease in serum fibrinogen and a tendency for prolonged hepalastin time.
- the administration of darelin recovered fibrinogen toward normalization and tended to normalize hepalastin time.
- Darelin promotes rat hepatocyte proliferation by repeated administration for one week
- liver sections from one saline-administered group and one ghrelin-administered group were selected from among approximately 200 hepatocytes on the screen.
- the number of ki-67 positive cells was counted under a microscope.
- ki-67-positive cells were counted under an optical microscope and compared with the saline-administered group. Had increased by 2 to 10 times.
- the number of ki-67-positive cells was 2.5 ⁇ 1.2 out of the observed 228 ⁇ 27 hepatocytes. .07 soil 0.40%.
- the darelin group 20.9 ⁇ 6.1 (p ⁇ 0.0001) of 231 ⁇ 27 hepatocytes were ki-67 positive, The rate was 9.28 ⁇ 3.26%.
- liver weight increased in the group injected subcutaneously with darelin compared to the group injected subcutaneously with saline after liver resection (Table 5).
- * indicates that it is significant at the level of p ⁇ 0.05 compared to the saline administration group.
- Hepatitis, liver cirrhosis, liver cancer and other liver disorders such as after liver resection surgery often have gastrointestinal symptoms and poor nutritional status, insufficient food intake and insufficient recovery.
- the study under restricted feeding examined the recovery effect of ghrelin under such adverse conditions.Darelin promoted hepatocyte regeneration after liver resection in liver cirrhosis and liver cancer, or in liver transplantation and liver regenerative medicine. It was shown to be useful for prevention of disorders and early healing.
- the organ blood flow in the liver, spleen, and stomach increased in the darelin group (p ⁇ 0.05), and increased in the jejunum (Table 6). ).
- each value is the average soil standard deviation (6 cases per group).
- PCNA Hepatocyte proliferation marker
- HGF mRNA expression increased (p ⁇ 0.05) and PCNA mRNA expression tended to increase compared to the saline administration group.
- the polypeptide derivative as an active ingredient can prevent liver dysfunction caused by liver diseases such as hepatitis, cirrhosis and liver failure, and is useful for preventing treatment and progress of these diseases. It is.
- the derivative of the polypeptide as an active ingredient has a hepatocyte proliferation-promoting action, and is also useful as an agent for promoting liver regeneration and liver function recovery after liver surgery, particularly hepatectomy.
- the polypeptide derivative shows almost no side effects from animal experiments using rats or the like, and thus has the advantage that it can be safely administered to mammals including humans.
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Abstract
Description
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Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES04730725T ES2383685T3 (es) | 2003-04-30 | 2004-04-30 | Preventivos o remedios para hepatopatía |
| US10/554,875 US10653637B2 (en) | 2003-04-30 | 2004-04-30 | Preventives or remedies for hepatopathy |
| CN2004800116229A CN1780635B (zh) | 2003-04-30 | 2004-04-30 | 肝病的预防或治疗剂 |
| BRPI0409877-3A BRPI0409877A (pt) | 2003-04-30 | 2004-04-30 | agentes preventivos ou remédios para doenças hepáticas |
| CA002523576A CA2523576A1 (en) | 2003-04-30 | 2004-04-30 | Preventives or remedies for hepatopathy |
| JP2005505958A JP4467518B2 (ja) | 2003-04-30 | 2004-04-30 | 肝障害予防治療剤 |
| AT04730725T ATE550029T1 (de) | 2003-04-30 | 2004-04-30 | Mittel zur prävention oder heilung von hepatopathie |
| AU2004233705A AU2004233705C1 (en) | 2003-04-30 | 2004-04-30 | Preventives or remedies for hepatopathy |
| EP04730725A EP1632244B1 (en) | 2003-04-30 | 2004-04-30 | Preventives or remedies for hepatopathy |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003126088 | 2003-04-30 | ||
| JP2003-126088 | 2003-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004096260A1 true WO2004096260A1 (ja) | 2004-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/006365 Ceased WO2004096260A1 (ja) | 2003-04-30 | 2004-04-30 | 肝障害予防治療剤 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US10653637B2 (ja) |
| EP (1) | EP1632244B1 (ja) |
| JP (1) | JP4467518B2 (ja) |
| KR (1) | KR20060015555A (ja) |
| CN (1) | CN1780635B (ja) |
| AT (1) | ATE550029T1 (ja) |
| AU (1) | AU2004233705C1 (ja) |
| BR (1) | BRPI0409877A (ja) |
| CA (1) | CA2523576A1 (ja) |
| ES (1) | ES2383685T3 (ja) |
| WO (1) | WO2004096260A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005110463A1 (en) * | 2004-05-11 | 2005-11-24 | The Government Of The United States Of America, As Represented By The Secretary, Department Of Health And Human Services, National Institutes Of Health | Methods of inhibiting proinflammatory cytokine expression using ghrelin |
| WO2006058539A3 (en) * | 2004-11-30 | 2006-10-26 | Gastrotech Pharma As | Growth hormone secretagogue receptor 1a ligands |
| RU2465913C2 (ru) * | 2006-02-28 | 2012-11-10 | Сентро Де Инхеньерия Хенетика И Биотекнолохия | Фармацевтическая композиция, содержащая ghrp-6, для предотвращения и устранения фиброза и других патологических отложений в тканях |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2774998A1 (en) | 2009-09-30 | 2011-04-07 | President And Fellows Of Harvard College | Methods for modulation of autophagy through the modulation of autophagy-inhibiting gene products |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007475A1 (en) * | 1999-07-23 | 2001-02-01 | Kenji Kangawa | Novel peptides |
| WO2002060472A1 (fr) * | 2001-01-31 | 2002-08-08 | Chugai Seiyaku Kabushiki Kaisha | Remedes pour des etats d'hyponutrition |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5492891A (en) * | 1991-09-05 | 1996-02-20 | Novo Nordisk A/S | Method for treatment of patients with chronic liver disease |
| US20030096411A1 (en) * | 1999-12-07 | 2003-05-22 | George Michalopoulos | Novel long-term three-dimensional tissue culture system |
| AU2001228325A1 (en) * | 2000-02-01 | 2001-08-14 | Novo-Nordisk A/S | Use of compounds for the regulation of food intake |
| US20010020012A1 (en) * | 2000-02-01 | 2001-09-06 | Andersen Maibritt Bansholm | Use of compounds for the regulation of food intake |
| US6967237B2 (en) * | 2000-05-30 | 2005-11-22 | Merck & Co., Inc. | Ghrelin analogs |
-
2004
- 2004-04-30 CA CA002523576A patent/CA2523576A1/en not_active Abandoned
- 2004-04-30 KR KR1020057020591A patent/KR20060015555A/ko not_active Abandoned
- 2004-04-30 AT AT04730725T patent/ATE550029T1/de active
- 2004-04-30 EP EP04730725A patent/EP1632244B1/en not_active Expired - Lifetime
- 2004-04-30 ES ES04730725T patent/ES2383685T3/es not_active Expired - Lifetime
- 2004-04-30 AU AU2004233705A patent/AU2004233705C1/en not_active Ceased
- 2004-04-30 US US10/554,875 patent/US10653637B2/en active Active
- 2004-04-30 BR BRPI0409877-3A patent/BRPI0409877A/pt not_active Application Discontinuation
- 2004-04-30 WO PCT/JP2004/006365 patent/WO2004096260A1/ja not_active Ceased
- 2004-04-30 JP JP2005505958A patent/JP4467518B2/ja not_active Expired - Lifetime
- 2004-04-30 CN CN2004800116229A patent/CN1780635B/zh not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007475A1 (en) * | 1999-07-23 | 2001-02-01 | Kenji Kangawa | Novel peptides |
| WO2002060472A1 (fr) * | 2001-01-31 | 2002-08-08 | Chugai Seiyaku Kabushiki Kaisha | Remedes pour des etats d'hyponutrition |
Non-Patent Citations (4)
| Title |
|---|
| MATSUMOTO M. ET AL: "Structure-Activity Relationship of Ghrelin: Pharmacological Study of Ghrelin Peptides", BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, vol. 287, 2001, pages 142 - 146, XP002980897 * |
| MURATA M. ET AL: "Ghrelin modulates the downstream molecules of insulin signaling in hepatoma cells", THE JOURNAL OF BIOLOGICAL CHEMISTRY, vol. 277, no. 7, 2002, pages 5667 - 5674, XP002295567 * |
| TACKE F. ET AL: "Ghrelin in chronic liver disease", JOURNAL OF HEPATOLOGY, vol. 38, no. 4, April 2003 (2003-04-01), pages 447 - 454, XP002980898 * |
| TACKE F. ET AL: "Ghrelin is a parameter of catabolism in patients with chronic liver disease", HEPATOLOGY, vol. 36, no. 4, PART 2, 2002, pages 530A, XP002980899 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005110463A1 (en) * | 2004-05-11 | 2005-11-24 | The Government Of The United States Of America, As Represented By The Secretary, Department Of Health And Human Services, National Institutes Of Health | Methods of inhibiting proinflammatory cytokine expression using ghrelin |
| WO2006058539A3 (en) * | 2004-11-30 | 2006-10-26 | Gastrotech Pharma As | Growth hormone secretagogue receptor 1a ligands |
| RU2465913C2 (ru) * | 2006-02-28 | 2012-11-10 | Сентро Де Инхеньерия Хенетика И Биотекнолохия | Фармацевтическая композиция, содержащая ghrp-6, для предотвращения и устранения фиброза и других патологических отложений в тканях |
| US8722626B2 (en) * | 2006-02-28 | 2014-05-13 | Centro De Ingenieria Genetica Y Biotecnologia | Method for controlling fibrosis and other pathological deposits in tissues comprising administering a GHRP-6 composition |
| KR101462077B1 (ko) | 2006-02-28 | 2014-11-20 | 센트로 데 인제니에리아 제네티카 와이 바이오테크놀로지아 | 조직에서의 섬유증 및 병리학적 저장부의 다른 형태를 예방하고 방지할 수 있는 ghrp-6을 포함하는 약학적 조성물 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1780635A (zh) | 2006-05-31 |
| US20070219114A1 (en) | 2007-09-20 |
| BRPI0409877A (pt) | 2006-05-16 |
| EP1632244A1 (en) | 2006-03-08 |
| JPWO2004096260A1 (ja) | 2006-07-13 |
| CN1780635B (zh) | 2011-04-13 |
| JP4467518B2 (ja) | 2010-05-26 |
| AU2004233705C1 (en) | 2010-04-01 |
| CA2523576A1 (en) | 2004-11-11 |
| EP1632244A4 (en) | 2009-11-11 |
| KR20060015555A (ko) | 2006-02-17 |
| AU2004233705A1 (en) | 2004-11-11 |
| AU2004233705B2 (en) | 2009-09-17 |
| ATE550029T1 (de) | 2012-04-15 |
| US10653637B2 (en) | 2020-05-19 |
| ES2383685T3 (es) | 2012-06-25 |
| EP1632244B1 (en) | 2012-03-21 |
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