WO1999018123A1 - Utilisation des bloqueurs des canaux potassium neuronaux et lymphocytaires dans le traitement des maladies neurologiques d'origine immunitaire - Google Patents
Utilisation des bloqueurs des canaux potassium neuronaux et lymphocytaires dans le traitement des maladies neurologiques d'origine immunitaire Download PDFInfo
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- WO1999018123A1 WO1999018123A1 PCT/FR1998/002136 FR9802136W WO9918123A1 WO 1999018123 A1 WO1999018123 A1 WO 1999018123A1 FR 9802136 W FR9802136 W FR 9802136W WO 9918123 A1 WO9918123 A1 WO 9918123A1
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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
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P21/00—Drugs for disorders of the muscular or neuromuscular system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/43504—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
- C07K14/43513—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from arachnidae
- C07K14/43522—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from arachnidae from scorpions
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/43504—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
- C07K14/43595—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from coelenteratae, e.g. medusae
Definitions
- the present invention relates to the use of inhibitors (or blockers) of potassium channels as therapeutic agents for neurological diseases with an immune component in which a blockage of nerve conduction occurs, and in particular multiple sclerosis (MS).
- MS multiple sclerosis
- MS is the most common human demyelinating disease of the nervous system with an average prevalence of 5 to 300 / 100,000 inhabitants. It affects young adults and 1.5 to 2 times more often women.
- the geographic distribution of MS is not uniform since its prevalence increases with latitude, according to three areas of low, medium and high risk. The peak of prevalence is located in regions between 45 ° and 60 ° north latitude, therefore in particular in Northern Europe.
- the clinical and pathological data for MS are as follows.
- MS is due to a progressive destruction of the myelin sheaths of the axons of the central nervous system, without axonal degeneration, accompanied by a glial scar.
- the injured myelin is not or little reconstituted by glial cells (oligodendrocytes), which accentuates the progression of the disease.
- Histopalhological examination reveals the existence of inflammatory infiltrates in the white matter and the dissemination of lesions gives an account of the polymorphism of the symptoms. These inflammations are accompanied by disorders of nerve conduction, the conduction blocks, which are at the origin. of the loss of (nei vuscs anointings
- the lesions are formed by infiltration of monocytes, B and T lymphocytes (majority) and by demyelination plates.
- T lymphocytes predominantly express receptors for interleukin 2 and HLA molecules, witnesses of cell proliferation.
- Resident cells, astrocytes, microglial cells and capillary endothelial cells also express HLA class II molecules, which indicates an inflammatory reaction in the brain. Inflammation is particularly harmful in the central nervous system, generating compressions, demyelination lesions, disturbances of the nerve impulse.
- demyelination is the appearance of conduction blocks due to the disruption of the activity of the ion channels responsible for nerve impulses in the axons.
- aminopy ⁇ dines are not very selective and touch a large number of potassium channels dependent on the potential and inter alia, those present in the synaptic terminations (Sherrat, Bostock and Sears, 1980) These are Kv channels of Kvl type. l, Kvl .2, Kvl 3, Kvl 4, Kvl 5 but also channels of another genetic family, channels Kv3 1 and v3 4 Blocking these channels facilitates the release of excitatory neuromediators and induces numerous peripheral side effects and central (Bever, 1994)
- Aminopy ⁇ dines-based therapies aim to treat neurological symptoms At the concentrations used and because of the duration of the treatments, they induce side effects due to their lack of specificity
- margatoxin a molecule derived from scorpion venom
- no effect of blocking of the neural Kv channels is described or suggested in this US patent
- the present invention aims to provide compounds acting on a limited number of neural Kv channels, while ensuring high efficiency in neurological pathologies in which the immune system is involved and a blockage of nerve conduction occurs, without for as much engendered the side effects observed within the framework of thei apeutic tests of the compounds of aerial art
- the present invention also aims to provide new pharmaceutical compositions which can be used in the context of ti alternate pathologies immunological components associated with a blockage of neon conduction, in particular of MS
- the subject of the present invention is the use of compounds which inhibit the neural potassium channels Kvl. l, Kv l 2, and lymphocyte potassium channels Kv l. 3, for the preparation of medicaments intended for the treatment of neurological diseases with an immune component in humans or animals, in which blockage of nerve conduction occurs.
- the compounds used in the context of the present invention are further characterized in that they have an inhibitory effect on the neuronal potassium channels Kvl. l and Kvl .2 potential dependent, located in Ranvier nodes (said neural channels being described in particular in the following articles: McNamara et al., 1996; Wang et al., 1994), and an inhibitory effect on potassium dependent channels of the Kvl .3 potential that is found in lymphocytes (said lymphocyte channels being described in particular in Chandy and Gutman, 1994; Grissmer et al., 1994).
- potassium channels dependent on the potential in what precedes and what follows, one understands membrane proteins selectively permeable to potassium ions and whose permeability to this ion depends on the potential of the cell.
- the flow of potassium ions through the channel constitutes a potassium current.
- the characteristics of the relationship between potassium current and cell potential have been described by St ⁇ hmer et al. (1989) for the currents Kv l. l, Kv l .2 and Kvl .3.
- the sequence of the main protein subunit ( ⁇ subunit) constituting the Kvl potassium channels. l, Kvl .2 and Kvl .3 is also described in this article.
- the classification of potential-dependent potassium channels is also explained in the review by Chandy and Gutman (1994).
- inhibitors (or blockers) of potassium channels dependent on the potential in what precedes and what follows, one understands any molecule able to limit the potassium current through a potassium channel by a direct action on the channel.
- the blocking is carried out by obturation of the external part of the channel.
- the measurement of blockage of potassium channels by the compounds of the invention can be carried out by the method of the imposed potential such as that described in the article Crest et al. 1992, mentioned above
- the central neurological pathologies with inflammatory inflammation of the brain and spinal cord in particular multiple sclerosis and diseases related (Balo, Devic. acute disseminated encephalitis and hemorrhagic, isolated optic neuropathies);
- peripheral inflammatory or related pathologies in particular: acute and chronic polyradiculoneuritis, neuropathies linked to infectious diseases and coliagenoses, degenerative neurological pathologies, in particular amyotrophic lateral sclerosis, neuropathies with conduction block, tumor pathologies, primary or secondary, associated with a dysregulation of the immune system.
- the invention also relates to the aforementioned use of the compounds described above in the context of the treatment of other central cerebral and spinal cord injuries, in particular pathologies of metabolic origin, ischemic arterial, venous and hemorrhagic vascular pathologies, traumatic pathologies, as well as central complications of systemic diseases, especially circulatory, such as Beheet, Sarcoidosis, and other vasculitides.
- the invention more particularly relates to the use of peptide compounds as described above, inhibiting the neuronal potassium channels, Kvl. l, Kvl .2, and the lymphocyte channels Kvl .3, said compounds being derived from scorpion venoms or sea anemones, for the preparation of medicaments intended for the treatment of neurological diseases with component mentioned above, with exclusion of the use of margatoxin in the treatment of neurological diseases with an immune component, such as MS.
- an immune component such as MS.
- the invention relates more particularly to the aforementioned use of peptide compounds derived from scorpion venoms, or of compounds derived from the latter, these compounds or derivatives comprising the amino acid sequence corresponding to the following general formula (I) below:
- - ni, and n2. independently of each other, represent zero or 1.
- AA25, AA28, AA31, AA39, and AA40 independently of each other, represent any natural or unnatural amino acid.
- the invention relates more particularly to the use, as compound of formula (II), noxiustoxin (such as derived from the scorpion venom called
- AAg AA7, AA9, AAJO, AA12, AA1, AA15, AA 16, ⁇ A 17, ⁇ A22- AA24, AA31, AA33, AA35, AA38 and AA39, independently of each other, represent any natural amino acid or not,
- the invention more particularly relates to the abovementioned use, as compounds comprising the sequence represented by the mule law (111) defined above, of kaliotoxin (KTX), or of peptide or pseudopeptide derivatives of KTX
- Kaliotoxin is a 38-amino acid peptide with the following amino acid sequence GVEINVKCSGSPQCLKPCKDAGMRFGKCMNRKCHCTPK (still corresponding to the sequence SEQ ID NO 2 shown below) This sequence was for the first time published in 1992 in the article, Crest et al, 1992, J of Biological Chemistry, vol. 267, pl640- 1647
- peptide or pseudopeptide derivatives of KTX we mean compounds deriving from KTX by addition or deletion of one or more amino acids, or by replacement of one or more amino acids with natural amino acids or no, said derivatives of kaliotoxin possessing the property of the latter of inhibiting the neuronal potassium channels Kvl. l and Kvl.2, as well as the above-mentioned potassium channels Kvl .3.
- - na, nb, and ni independently of each other, represent 0 or 1, - AA3, AA5, AA7, AA9, AA10 " AA12, AA13, AA15, AA16, AA17,
- AA2 represents a glycine
- AA5 represents a proline
- AA7 represents a seine
- AA9 i represents a lysine
- AA J Q represents a histidine.
- the invention also relates to the aforementioned use of KTX drugs comprising the aforementioned (ormule (III) and more particularly corresponding to formula (IV) defined above, in which ni represents 0 or 1, and
- a 17 represents aminobuty ⁇ que acid (Abu), - and / or, at least one of AA24 or AA31 represents a norleucine residue
- AA17 represents ammobuty ⁇ que acid (Abu) or valine, and / or
- AA24 and AA31 represent, independently of one another, methiomne or norleucine.
- a more particular subject of the invention is the aforementioned use of derivatives of the KTX of formula (IV) defined above, in which ni represents 0 or 1, and
- AA j has AA7 AA9, AA J Q ⁇ A 15 AA33 AA3 and ⁇ A38 ⁇ A40 independently of each other, they represent any natural or unnatural amino acid
- KTX derivative with a modified ⁇ helix represents by the sequence SEQ ID NO 9, in which, unlike KTX.
- AA ⁇ 2 represents a lysine
- AA 13 represents a glutamic acid
- AA15 represents a tryptophan
- AA j g represents a serine
- AA17 represents a valine
- AA22 represents a tyrosine
- KTX derivative designated (P12 / K, P17 / V, F22) KTX corresponding to the amino acid sequence SEQ ID NO 10, in which, unlike KTX, AA 2 represents a lysine, AA JJ represents a valme , and AA22 represents a phenylalamne
- the invention also relates to the aforementioned use of peptide compounds derived from sea anemones, or peptide or pseudopeptide derivatives of these compounds (namely compounds derived from the latter by addition or removal of one or more amine acids, or by replacing one or more amino acids with natural or unnatural amino acids), said derivatives having the property of compounds derived from sea anemones of inhibiting the neuronal potassium channels Kvl 1 and Kvl 2, as well as the lymphocyte potassium channels Kvl 3 above, these compounds or derivatives comprising the amino acid sequence corresponding to the following general formula (VI) below
- a more particular subject of the invention is the above-mentioned use of the peptide compounds of formula (VI) following BgK co ⁇ espondant to the amino acid sequence SLQ ID NO 1 1 (such as derived from the sea anemone designated Bunodosoma gian lifeia) the SK corresponding to the amino acid sequence SCQ ID NO 12 (as derived from the met anemone designated Sluh ⁇ chu txla eliantlms) kaliseptin corresponding to the amino acid sequence SEQ ID NO 13 (such as from the sea anemone designated Anemonia sulcata)
- the subject of the invention is also any pharmaceutical composition, characterized in that it comprises one or more peptide compounds as defined above, in combination with a pharmaceutically acceptable vehicle.
- compositions of the invention are in a form which can be administered by intravenous, intramuscular, anal or subcutaneous routes, in particular at a rate of approximately 0.05 to approximately 1 mg / kg, or approximately 0.5 mg / kg to about 1 mg / kg, 1 to 3 times a day.
- Preferred pharmaceutical compositions are those containing kaliotoxin or its derivatives, in particular kaliotoxin 3, in the context of the treatment of MS.
- Other preferred pharmaceutical compositions are those containing the compound (P12 / Abu, P17 / Abu) KTX, in the context of the treatment of MS.
- the invention also relates to the KTX derivatives, as defined above, and corresponding to the following formula (IV):
- na, nb, and ni independently of each other, represent 0 or 1.
- AA - or AA2 represents a glycine
- AA5 represents a proline
- AA7 represents a sequence
- AA9 represents a lysine
- AA IQ represents an histidine
- AA d? represents a glycine
- AA j represents an isoleucine.
- AA24 or AA31 i represents a norleucine residue
- AA2 represents a glycine
- AA5 represents a proline
- AA7 represents a serine
- AA9 represents a lysine.
- AAI Q represents a histidine.
- AA ⁇ 2 represents a glycine
- AA J ⁇ represents an isoleucine, in particular kaliotoxin 3 corresponding to the amino acid sequence SEQ ID NO 4, or
- KTX 6-37 represented by SEQ ID NO 6.
- Cys-AA36-Cys-AA3g-AA39-AA40 (V) in which AA1 to AA7, AA9, AAI Q, AA15, AA33, AA3.5, and AA3 to AA40, independently of each other, represent any natural amino acid or not.
- AA j 2 represents a lysine
- AA 13 represents a glutamic acid
- AA15 represents a tryptophan
- AA [6 represents a serine
- AA17 represents a valine.
- AA22 represents a tvrosine.
- the derivative of KTX designated (P12 / K, P17 / V, F22) KTX corresponding to the amino acid sequence SEQ ID NO 10, in which, unlike KTX, AA12 represents a lysine, AA17 represents a valine, and AA22 represents a phenylalamne.
- the invention also relates to any peptide derived from those described above, in particular by substitution, deletion or addition of one or more amino acids, or any fragment of the peptides described above, said derivative peptides or fragments being capable of blocking the neural potassium channels Kvl. l and Kvl.2, as well as the above-mentioned Kvl.3 lymphocyte potassium channels.
- the invention also relates to the nucleotide sequences coding for the peptides, or derived peptides, or fragments thereof, described above, as well as their use in the context of the preparation of said peptides, derived peptides, or fragments, by transformation of host cells with vectors containing said nucleotide sequences, culturing the host cells thus transformed, and recovery of the peptides, derived peptides produced
- Kaliotoxin and its various analogues were synthesized by the solid phase synthesis method using, for the protection of amino acids, either Boc chemistry according to the protocol explained in the article Romi et al., 1993, J of Biological Chemistry , vol 268, p 26302-26309. either chemistry
- the assembly of the amino acids was constructed as of HOBt-ester or by coupling with the HBTU reagent
- the cleavage and deprotection of the side chains of the amino acids were carried out either in HF medium or in the presence of TFA ditteients traps a p-cresol, ethanedithiol, thioanisole or phenol radicals
- the peptides were placed in reoxidation in the presence of a T ⁇ s-HCl buffer in contact with air.
- the constitution of the disulfide bridges and the restructuring of the molecules were monitored by HPLC.
- the oxidized peptides were purified by preparative HPLC and characterized by: analytical HPLC, analysis of amino acids, mass spectrometry, and by various biological tests: electrophysiology, toxicity in mice, fixation on their receptors.
- the physico-chemical characteristics are as follows. amorphous white lyophilized powder, of great solubility in water (> 10 mg / ml), storage at 4 ° C in the lyophilized state and at -20 ° C in solution in water.
- T lymphocytes are maintained in culture by alternating cycles of antigen activation and amplification cycles in growth medium containing 10% of "T cell growth factoi s "(TCGF)
- the antigenic activation is carried out by cultivating 3x10 4 LcT with 2x10 ⁇ cells presenting the antigen, the basic protein of myelin (PBM) (10 mg / ml) / 200 ml stimulation medium / microplate well After 48 hrs, a radioactive DNA precursor (H3-Tdr.
- EAE is induced by adoptive transfer of T lymphocytes (LcT) specific for the basic myelin protein (PBM).
- LcT T lymphocytes
- PBM basic myelin protein
- T lymphocytes come from a CD4 + T cell line, Thl, "PAS”, derived from Lewis rats; they are activated by PBM 48 hours before being injected into normal syngeneic recipients.
- Five groups (A to E) of 5 Lewis rats aged 10 weeks, 200 g (Charles River) receive this 2 to 5 million LcT (T PAS line) specific for the basic myelin protein PBM intraperitoneally on day 0 (D0).
- KTX 0.8 and 8 ⁇ g / 0.1 ml PBS / rat
- a control group (group A) receives instead of KTX, 1 ml of PBS.
- Group D rats receive 8 ⁇ g of KTX after the appearance of clinical signs of EAE.
- the rats of group E receive on day 0 LcT pretreated with KTX in vitro (100 ng / ml) and daily 8 ⁇ g of KTX until D6.
- the rats of the sixth group (F) receive only KTX (8 ⁇ g) from D0 to D6.
- Another experiment was carried out by testing KTX at different doses: 0.8, 8, 16 and 32 ⁇ g / rat / day.
- the highest dose (32 ⁇ g) was injected once or twice in 0.1 or 1 ml of PBS.
- the route of administration was subcutaneous; it was compared to the intravenous route in one experiment.
- the clinical observation of the animals was carried out 1, 2 or 4 times a day.
- the rats are observed and weighed daily.
- the clinical signs of EAE (identical to those obtained by active induction) are noted from 0 to 4. as follows (after Bourdoulous et al., 1995) -
- the average clinical EAE is obtained by adding together the clinical signs of maximum intensity of each rat; rats showing no signs are included and scored 0 Weight loss takes into account the minimum and maximum weight of each rat during the 6 days of treatment
- the optic nerve is removed from Lewis rats and placed in a perfused, oxygenated and thermostated chamber at 36 ° C.
- the recording of the overall activity of the axons is carried out using a suction electrode serving to contain a end of the nerve
- a second identical electrode, placed at the other end, is used to stimulate the nerve (stimulation giving a maximum response 0 1 ms, 10 to 30 V)
- the controls carried out, the preparation is put in the presence of lymphocytes reactive against myelin basic protein (2 10 ⁇ cells / ml) maintained in a DMEM culture medium.
- the detection in the CNS of the evoked potentials by stimulation applied to a hind paw of a rat makes it possible to evaluate the functional state of the ascending fibers of the brainstem.
- the detection is done at the thalamic level.
- the metal electrodes are implanted permanently under stereotaxic control. , two in the ventro-postero-lateial thalamic nucleus and two others on the scalp.
- the animal being anesthetized with chloral (0.1 g / rat), the stimulation of the right hind paw is carried out using a bracelet encircling the leg and containing two conductors
- the threshold stimulation (2 ms. 25 to 60 V) is detected visually by a reflex contraction
- the evoked potentials are obtained by means of around fifty stimulations repeated every 5s
- the Kv3.1 channel is insensitive (IC50> 1 ⁇ ).
- other authors have shown that the neural channels Kvl .5 and Kv 3.1 are insensitive to KTX (Grissmer et al, 1994).
- This activity profile ideally corresponds to the load plan set in the context of the present invention: high affinity for the Kvl .3 lymphocyte channel; high and selective affinity for Kvl axonal Kvl channels. l and Kvl.2, compared to other neural channels.
- This activity profile is ideal for combining an effective immunosuppressive effect and a neurological effect oriented on axonal conduction which may make it possible to avoid the epileptogenic effects of aminopyridines.
- Results Analysis shows that. From a clinical point of view, the treatment of rats systemically with KTX (8 and 0.8 ⁇ g) from day 0 to day 6 considerably reduces the severity of the disease and abolishes mortality. The remission is complete in less than 10 days. Even more significant are the results of group D treated after the appearance of clinical signs with 8 ⁇ g of KTX and only for 2 days. The clinical signs do not exceed an average severity of 1.1 and regress rapidly. Conclusion: Treatment of Lewis rats with KTX from the day of the adoptive transfer reduced the severity of EAE and weight loss. Treatment with KTX as soon as clinical signs appear, for only one to three days, constitutes an effective treatment for EAE (see Table 1).
- EAE is induced in Lewis rats by intraperitoneal injection of 2 to 5 million “PAS” T lymphocytes activated by PBM on day 0.
- KTX is injected subcutaneously in PBS as soon as clinical signs appear, for 1 to 3 days.
- the average clinical EAE is obtained by adding together the clinical signs of maximum intensity of each rat evaluated according to the scale of Sommer et al. (Nature Med. 1995, 1: 247).
- n represents the number of rats per group. Statistical analysis is performed by the Mann and Whitney test.
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Abstract
Description
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Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98949027A EP1021461A1 (fr) | 1997-10-06 | 1998-10-06 | Utilisation des bloqueurs des canaux potassium neuronaux et lymphocytaires dans le traitement des maladies neurologiques d'origine immunitaire |
| CA002305786A CA2305786A1 (fr) | 1997-10-06 | 1998-10-06 | Utilisation des bloqueurs des canaux potassium neuronaux et lymphocytaires dans le traitement des maladies neurologiques d'origine immunitaire |
| AU95442/98A AU9544298A (en) | 1997-10-06 | 1998-10-06 | Use of neuronal and lymphocytic potassium canal inhibitors for treating neurological diseases of immune origin |
| JP2000514930A JP2001519356A (ja) | 1997-10-06 | 1998-10-06 | 免疫起源の神経学上の疾患を処置するための、ニューロン及びリンパ球カリウムチャンネル阻害剤の使用 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR97/12421 | 1997-10-06 | ||
| FR9712421A FR2769226B1 (fr) | 1997-10-06 | 1997-10-06 | Utilisation des bloqueurs des canaux potassium dans le traitement des maladies neurologiques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999018123A1 true WO1999018123A1 (fr) | 1999-04-15 |
Family
ID=9511862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1998/002136 Ceased WO1999018123A1 (fr) | 1997-10-06 | 1998-10-06 | Utilisation des bloqueurs des canaux potassium neuronaux et lymphocytaires dans le traitement des maladies neurologiques d'origine immunitaire |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1021461A1 (fr) |
| JP (1) | JP2001519356A (fr) |
| AU (1) | AU9544298A (fr) |
| CA (1) | CA2305786A1 (fr) |
| FR (1) | FR2769226B1 (fr) |
| WO (1) | WO1999018123A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006002850A2 (fr) | 2004-06-25 | 2006-01-12 | Cellpep Sa | Derives d'osk1 |
| EP2229473A4 (fr) * | 2007-12-07 | 2011-02-02 | Steven A Goldstein | Identification de ligands de toxine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10007234A1 (de) * | 2000-02-17 | 2001-10-18 | Sension Biolog Detektions Und | Peptid und dafür kodierende Nukleinsäure zur Bestimmung, Diagnostik und Therapie von Erkrankungen des Nervensystems |
| CN108186976A (zh) * | 2018-04-06 | 2018-06-22 | 王建忠 | 一种治疗低钾性周期性麻痹的中药 |
| EP4031162A1 (fr) * | 2019-09-20 | 2022-07-27 | Zealand Pharma A/S | Bloqueurs de kv1.3 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0063091A2 (fr) * | 1981-04-07 | 1982-10-20 | William E. Haast | Mélanges de vénins de serpents pour le traitement des troubles neurologiques et des affections apparentées |
| US5494895A (en) * | 1993-07-22 | 1996-02-27 | Merck & Co., Inc. | Scorpion peptide margatoxin with immunosuppressant activity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09278797A (ja) * | 1996-04-05 | 1997-10-28 | Suntory Ltd | サソリ毒素関連ペプチド |
-
1997
- 1997-10-06 FR FR9712421A patent/FR2769226B1/fr not_active Expired - Fee Related
-
1998
- 1998-10-06 CA CA002305786A patent/CA2305786A1/fr not_active Abandoned
- 1998-10-06 WO PCT/FR1998/002136 patent/WO1999018123A1/fr not_active Ceased
- 1998-10-06 EP EP98949027A patent/EP1021461A1/fr not_active Withdrawn
- 1998-10-06 JP JP2000514930A patent/JP2001519356A/ja active Pending
- 1998-10-06 AU AU95442/98A patent/AU9544298A/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0063091A2 (fr) * | 1981-04-07 | 1982-10-20 | William E. Haast | Mélanges de vénins de serpents pour le traitement des troubles neurologiques et des affections apparentées |
| US5494895A (en) * | 1993-07-22 | 1996-02-27 | Merck & Co., Inc. | Scorpion peptide margatoxin with immunosuppressant activity |
Non-Patent Citations (6)
| Title |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006002850A2 (fr) | 2004-06-25 | 2006-01-12 | Cellpep Sa | Derives d'osk1 |
| WO2006002850A3 (fr) * | 2004-06-25 | 2007-04-05 | Cellpep Sa | Derives d'osk1 |
| AU2005259533B2 (en) * | 2004-06-25 | 2011-09-08 | Cellpep Sa | OsK1 derivatives |
| EP2229473A4 (fr) * | 2007-12-07 | 2011-02-02 | Steven A Goldstein | Identification de ligands de toxine |
| US8716437B2 (en) | 2007-12-07 | 2014-05-06 | Steven A. Goldstein | Identification of toxin ligands |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2769226B1 (fr) | 2000-06-02 |
| FR2769226A1 (fr) | 1999-04-09 |
| JP2001519356A (ja) | 2001-10-23 |
| AU9544298A (en) | 1999-04-27 |
| CA2305786A1 (fr) | 1999-04-15 |
| EP1021461A1 (fr) | 2000-07-26 |
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