WO1997033575A1 - Utilisation de la tiamuline pour la preparation d'un medicament comme agent de reversion de la multichimioresistance cancereuse - Google Patents
Utilisation de la tiamuline pour la preparation d'un medicament comme agent de reversion de la multichimioresistance cancereuse Download PDFInfo
- Publication number
- WO1997033575A1 WO1997033575A1 PCT/FR1997/000417 FR9700417W WO9733575A1 WO 1997033575 A1 WO1997033575 A1 WO 1997033575A1 FR 9700417 W FR9700417 W FR 9700417W WO 9733575 A1 WO9733575 A1 WO 9733575A1
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- WIPO (PCT)
- Prior art keywords
- tiamulin
- resistant
- cells
- drug
- use according
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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
- A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
- A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
- A61K31/22—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin
- A61K31/222—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin with compounds having aromatic groups, e.g. dipivefrine, ibopamine
Definitions
- the present invention relates to the use of tiamulin, a semi-synthetic derivative of the natural antibiotic pleuromutilin, for the reversion of the multichimioresistance phenotype (known as MDR phenotype for Multidrug Resistance) developed by certain tumor cells either immediately or after chemotherapy anticancer.
- the clinical resistance that cancer cells oppose to chemotherapeutic agents is currently a major obstacle to their curative potential in the treatment of human or animal cancers.
- the multichimioresistance phenotype also known as MDR (for multidrug resistance) is a very studied mechanism by which cancer cells manage to resist the cytotoxic effects of antineoplastic agents.
- the tumor cells selected in vitro for their MDR phenotype overexpress the md ⁇ gene, which results in the overproduction of a plasma membrane gtycoprotein, called P-glycoprotein, or Pgp, or Pgp170, of molecular weight 170 kDa; it acts like a pump expelling the drugs towards the extracellular medium what confers the resistance with respect to a broad range of chemotherapeutic drugs commonly used.
- Pgp plasma membrane gtycoprotein
- Pgp170 molecular weight 170 kDa
- Numerous compounds having the capacity to inhibit the activity of expulsion of drugs by Pgp have been identified: they reverse the cellular resistance towards cytotoxic agents used in experimental systems [1].
- tiamulin as a chemosensitizing agent reversing the MDR phenotype of resistant tumor cells from different species including man, thanks on the one hand to its strongly and rapidly cytotoxic effect on these cells. in conjunction with the use of an anticancer drug, and on the other hand, its non-cyctotoxic effect on healthy cells, in particular on the calcium channels of myocardial cells.
- This invention relates to the use of a semi-synthetic antibiotic derived from the pleuromutilin family, tiamulin or (2- (Diethylamino) ethyl) thio] a ⁇ tic acid 6-ethenyldecahydro-5-hydroxy- 4, 6 r 9, 1 Metramethyl-1-oxo-3a, 9-propano-3aH-cyclopentacycloocten-8-yl ester, as a chemosensitizing agent in the reversal of the multichimioresistance phenotype (MDR) of animal and human cancer cells, an original use in this meaning that tiamulin is currently used in veterinary therapy against bacterial and mycoptamic infections of farm animals intended for human consumption (6-8] [For this use, tiamulin is covered by a patent: Ge ⁇ nan Patent 2,248,237 corresponding to US Patent 3,919, 290 (1973 and 1975 resp., Both to Sandoz).]
- tiamulin at a concentration of 1 ⁇ M in a culture of resistant cells in the presence of the anticancer drug at the indicated concentrations, leads rapidly (24 to 48 hours depending on the cell line) to cell death. Adding tiamulin alone to resistant or sensitive tumor cell cultures has no effect, suggesting that tiamulin exerts a chemosensitizing effect on resistant cells under these conditions.
- Figure 1 chemical formula of tiamulin.
- Figure 2 dose-response curves to determine the 50% tiamulin cytotoxicity index (ICS Q ). The percentage of viability is increased according to the concentration of tiamulin used. Viability is determined by the exclusion of trypan blue.
- P388 murine lymphoid leukemia and AS30-D rat hepatoma cells are cultured in DMEM medium and human lymphoblastic leukemia cells are cultured in RPMI1640 medium.
- the culture media are enriched with 10% fetal calf serum, 100 U / ml of penicillin, 100 ⁇ g / ml of streptomycin, 0.25 ⁇ g / ml of amphotericin B.
- the cells are incubated at 37 ° C. in a atmosphere saturated with humidity in the presence of 5% of C0 2 .
- the culture medium of the AS30-D cells is enriched with 0.5% glucose as described previously [12].
- the highly resistant cells P388 / ADR25 ( Figure 2A), AS30- D / COL5 ( Figure 2B), AS30-D / COL10 ( Figure 2C), CEM ⁇ / LB0.45 ( Figure 2D) and CEM / VLB3.6 ( Figure 2E) ) were obtained by incubation of sensitive parental lines in the presence of increasing amounts of the corresponding inducing anticancer drug adriamycin, colchicine and vinblastine, over a period of 24 months; their phenotype was then stabilized for an additional 8 months.
- the cells thus selected can grow in a medium containing the greatest quantity of drug possible, that is to say 25 ⁇ g / ml of adriamycin for P388 / ADR25, 5 and 10 ⁇ g / ml of colchicine for AS30-D / COL5 and AS30-D / COL10 and 0.45 and 3.6 ⁇ g / ml of vinblastine for CEM ⁇ LB0.45 and CEM / VLB3.6.
- the determination of the 50% cytotoxicity index (ICg,) for tiamulin is carried out as follows: the cells are passed into fresh medium at a concentration of 0.2 ⁇ 10 6 / ml 24 hours before the test.
- the cytograms represent the cell population as a function of the intensity of fluorescence emitted in red by the cells.
- the odd cytograms represent the sensitive parental line while the even cytograms represent the resistant derivative line.
- the name complete of each line is indicated at the top of each frame. The measurement was taken 6 hours after the addition of tiamulin.
- T autofluorescence control (cells incubated in the absence of daunorubicin)
- D cells incubated in the presence of 2 ⁇ g / ml of daunorubicin
- D + TM cells incubated in the presence of 2 ⁇ g / ml of daunorubicin and 1 ⁇ g / ml tiamulin.
- the retention tests for tiamulin by flow cytometry are carried out as follows: after a viability test with Trypan blue, the resistant or sensitive cells, in the exponential phase, are washed twice in PBS buffer and incubated for 1 hour fresh medium at a concentration of 0.3 10 6 / ml, at 37 ° C., before the addition of the daunorubicin marker at 1 ⁇ g / ml. Tiamulin is added to a final concentration of 2.5 ⁇ g / ml. The cells are then incubated for 5 hours at 37 "C.
- tiamulin - and probably its derivatives and its history - may be likely to be used in animal and human oncology in order to reverse the multi-drug resistance phenotype which manifested itself either immediately at the time of diagnosis, or following tumor progression and / or anticancer treatment .
- the antibiotic tiamulin is a cotent inducer and inhibitor of cytochrome P450A via the formation of a stable metabolic intermediate complex. Studies in primary hepatocyte cultures and liver microsomes of the pig "
- Tiamulin inhibits human CYP3A4 activity in an NIH / 3T3 cell line stably expressing CYP3A4 cDNA
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU20318/97A AU2031897A (en) | 1996-03-13 | 1997-03-10 | Use of tiamulin for preparing a drug for use as a cancer multidrug resistance reversion agent |
| EP97908328A EP0848609A1 (fr) | 1996-03-13 | 1997-03-10 | Utilisation de la tiamuline pour la preparation d'un medicament comme agent de reversion de la multichimioresistance cancereuse |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9603360A FR2746012B1 (fr) | 1996-03-13 | 1996-03-13 | Utilisation de la tiamuline pour la preparation d'un medicament comme agent de reversion de la multichimioresistance cancereuse |
| FR96/03360 | 1996-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997033575A1 true WO1997033575A1 (fr) | 1997-09-18 |
Family
ID=9490279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1997/000417 Ceased WO1997033575A1 (fr) | 1996-03-13 | 1997-03-10 | Utilisation de la tiamuline pour la preparation d'un medicament comme agent de reversion de la multichimioresistance cancereuse |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0848609A1 (fr) |
| AU (1) | AU2031897A (fr) |
| FR (1) | FR2746012B1 (fr) |
| WO (1) | WO1997033575A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009106839A1 (fr) * | 2008-02-28 | 2009-09-03 | Cambridge Enterprise Limited | Utilisation de la tiamuline en tant qu’agent antiviral |
| AU2017426847B2 (en) * | 2017-08-08 | 2021-11-18 | Sun Yat-Sen University | Methods and compositions for treatment of multi-drug resistant tumors |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2248237A1 (de) * | 1971-10-05 | 1973-04-12 | Sandoz Ag | Neue pleuromutiline und verfahren zu ihrer herstellung |
| JPH041132A (ja) * | 1990-04-18 | 1992-01-06 | Sds Biotech Kk | 魚類の細菌性疾患の予防・治療剤 |
| JPH06128163A (ja) * | 1992-10-19 | 1994-05-10 | Asahi Chem Ind Co Ltd | 合剤による魚類連鎖球菌感染症の予防または治療剤 |
-
1996
- 1996-03-13 FR FR9603360A patent/FR2746012B1/fr not_active Expired - Fee Related
-
1997
- 1997-03-10 AU AU20318/97A patent/AU2031897A/en not_active Abandoned
- 1997-03-10 WO PCT/FR1997/000417 patent/WO1997033575A1/fr not_active Ceased
- 1997-03-10 EP EP97908328A patent/EP0848609A1/fr not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2248237A1 (de) * | 1971-10-05 | 1973-04-12 | Sandoz Ag | Neue pleuromutiline und verfahren zu ihrer herstellung |
| JPH041132A (ja) * | 1990-04-18 | 1992-01-06 | Sds Biotech Kk | 魚類の細菌性疾患の予防・治療剤 |
| JPH06128163A (ja) * | 1992-10-19 | 1994-05-10 | Asahi Chem Ind Co Ltd | 合剤による魚類連鎖球菌感染症の予防または治療剤 |
Non-Patent Citations (3)
| Title |
|---|
| DATABASE WPI Week 9207, Derwent World Patents Index; AN 92-053908, XP002019711 * |
| DATABASE WPI Week 9423, Derwent World Patents Index; AN 94-188898, XP002019710 * |
| L.G. BAGGETTO ET AL.: "Flow cytometric determination of the reversion of P-glycoprotein-mediated multidrug resistance by a pleuromutilin-derived semi-synthetic antibiotic.", PROC. AM. ASSOC. CANCER RES. ANNU. MEET., vol. 37, 1996, pages 335, XP000673798 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009106839A1 (fr) * | 2008-02-28 | 2009-09-03 | Cambridge Enterprise Limited | Utilisation de la tiamuline en tant qu’agent antiviral |
| AU2017426847B2 (en) * | 2017-08-08 | 2021-11-18 | Sun Yat-Sen University | Methods and compositions for treatment of multi-drug resistant tumors |
| US11576930B2 (en) | 2017-08-08 | 2023-02-14 | Sun Yat-Sen University | Methods and compositions for treatment of multi-drug resistant tumors |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2746012B1 (fr) | 1998-05-22 |
| FR2746012A1 (fr) | 1997-09-19 |
| EP0848609A1 (fr) | 1998-06-24 |
| AU2031897A (en) | 1997-10-01 |
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