Repositioning Candidate Details
| Candidate ID: | R1388 |
| Source ID: | DB11641 |
| Source Type: | approved; investigational |
| Compound Type: | small molecule |
| Compound Name: | Vinflunine |
| Synonyms: | 20',20'-difluoro-3',4'-dihydrovinorelbine; 4'-deoxy-20',20'-difluoro-5'-norvincaleukoblastine; 4'-deoxy-20',20'-difluoro-8'-norvincaleukoblastine |
| Molecular Formula: | C45H54F2N4O8 |
| SMILES: | CC[C@@]12C=CCN3CC[C@@]4([C@H]13)[C@@H](N(C)C1=CC(OC)=C(C=C41)[C@]1(C[C@@H]3C[C@H](C[N@@](C3)CC3=C1NC1=CC=CC=C31)C(C)(F)F)C(=O)OC)[C@](O)([C@@H]2OC(C)=O)C(=O)OC |
| Structure: |
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| DrugBank Description: | Vinflunine is a third-generation member of the vinca alkaloid family with anti-tumour actions. It was first described in 1998 at the Pierre Fabre research center in France. Like other vinca agents, vinflunine is an anti-mitotic agent that induces a cell cycle arrest at the G2/M phase and promotes cell death via apoptosis . Vinflunine is a microtubule inhibitor that binds to tubulin at or near to the vinca binding sites to inhibits its polymerization into microtubules during cell proliferation . In murine tumors and human tumor xenografts, vinflunine exhibits an antitumor efficacy than , , and . Having an incidence of 429,700 new cases per year worldwide, urothelial carcinoma of the bladder is one of the most common malignancies that mostly affects individuals aged 50–79 years . Some patients with advanced urothelial carcinoma experience inadequate therapeutic response from a prior platinum-containing regimen. While these patients have a median survival of approximately 4 months and a poor prognosis , there is currently no standard therapy in patients with advanced urothelial carcinoma . In 2009, vinflunine was approved by the European Medicines Agency (EMA) as a second-line therapy of metastatic and advanced urothelial cancer after failure of platinum-based treatment . Vinflunine ditartrate is an active ingredient in the EMA-authorised product Javlor for intravenous infusion. Efficacy and safety of vinflunine has not been studied in patients with performance status of 2 or less. The clinical use of vinflunine in other urologic malignancies, such as inoperable cancer of the penis, are currently have been investigated . |
| CAS Number: | 162652-95-1 |
| Molecular Weight: | 816.944 |
| DrugBank Indication: | For use as a monotherapy in adults with advanced or transitional cell carcinoma of the urothelial tract after failure of a prior platinum-containing therapy . |
| DrugBank Pharmacology: | The antitumour effects of vinflunine are dependent on concentration and exposure duration of the drug . Vinflunine mediates an anti-mitotic action by inhibiting the microtubule assembly at micromolar concentrations and reducing the rate and extent of microtubule growing events . _In vivo_, vinflunine displays a significant antitumor activity against a broad spectrum of human xenografts in mice both in terms of survival prolongation and tumour growth inhibition . Compared with other vinca alkaloids, vinflunine is a less-potent inductor of drug resistance _in vitro_ . |
| DrugBank MoA: | Microtubules are a major component of the cytoskeleton that have a critical role in maintenance of cell shape, mobility, adhesion and intracellular integrity. They also play a role in the formation of the mitotic spindle and chromosomal segregation to the daughter cells at mitosis . Via GTP hydrolysis at the β-tubulin subunit and polymerization of tubulin into linear polymers, microtubules, or macromolecular filaments composed of tubulin heterodimers, are formed via a mechanism of nucleation-elongation . At the onset of mitosis, the interphase microtubule network disassembles into the tubulin. The tubulin reassembles into a new population of mitotic spindle microtubules that further undergo rapid successions of lengthening and shortening until they are attached to the newly duplicated sister chromatids at their centromeres . The dynamic behaviour of microtubules are characterized by two mechanical process: dynamic instability indicating repeated switches of growth and shortening at the ends, and microtubule treadmilling that involves the fast-growing (+) end of the microtubule accompanied by a net loss of the opposite slow-growing (-) end . Microtubule treadmilling plays a critical role in mitosis by generating the forces for separation of the chromosomes in the mitotic spindle from centrosome and kinetochores. In both cancer and normal cells, vinflunine binds to tubulin at or near to the vinca binding sites at β-tubulin. It is proposed that in similarity to other vinca alkaloids, vinflunine is most likely to bind to β-tubulin subunit at the interdimer interface . Via direct binding to tubulin, vinflunine inhibits microtubule polymerization and induces a G2+M arrest, or a mitotic arrest . Vinflunine disrupts the dynamic function of microtubules by suppressing treadmilling and slowing the microtubule growth rate while increasing growth duration . Ultimately, mitotic accumulation at the metaphase/anaphase transition results in cell apoptosis . |
| Targets: | Tubulin beta chain inhibitor |
| Inclusion Criteria: | Therapeutic strategy associated |
| Target ID | Target Name | GENE | Action | Class | UniProtKB ID | Entry Name | |
|---|---|---|---|---|---|---|---|
| T10 | Caspase-1 | CASP1 | inhibitor | Enzyme | P29466 | CASP1_HUMAN | Details |
| T18 | Acetyl-CoA carboxylase 1 | ACACA | inhibitor | Enzyme | Q13085 | ACACA_HUMAN | Details |
| T20 | Fatty acid synthase | FASN | inhibitor | Enzyme | P49327 | FAS_HUMAN | Details |
| T21 | Diacylglycerol O-acyltransferase 2 | DGAT2 | inhibitor | Enzyme | Q96PD7 | DGAT2_HUMAN | Details |
| Diseases ID | DO ID | Disease Name | Definition | Class |
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