Description

Product Description

Vincristine sulfate is a semi-synthetic derivative of the naturally occurring vinca alkaloid vincristine, extracted from Catharanthus roseus (Madagascar periwinkle). It is a potent microtubule inhibitor that arrests dividing cells in metaphase, making it a valuable compound for cancer research and cytotoxicity studies.

The molecular structure of vincristine allows specific binding to tubulin dimers, disrupting microtubule polymerization and consequently inhibiting mitotic spindle formation. This results in cell cycle arrest at the G2/M phase and triggers apoptosis in rapidly dividing cells, a mechanism extensively investigated in leukemia, lymphoma, and solid tumor research models.

Vincristine sulfate is highly soluble in aqueous and slightly acidic solutions, facilitating preparation of precise concentrations for in vitro assays, animal studies, and pharmacokinetic evaluations. Researchers commonly employ vincristine sulfate in combination studies with other chemotherapeutic agents to study synergistic or antagonistic effects, dose optimization, and multidrug resistance mechanisms.

In vitro experiments demonstrate vincristine sulfate’s ability to induce microtubule depolymerization, inhibit mitotic spindle assembly, and activate intrinsic and extrinsic apoptotic pathways. Its use in cell culture models includes evaluation of apoptosis biomarkers such as caspase activation, Bcl-2 family protein modulation, and DNA fragmentation assays.

In vivo preclinical models utilize vincristine sulfate to investigate tumor regression, pharmacodynamic endpoints, and combination therapy regimens. Its pharmacokinetic properties, including tissue distribution, metabolism, and elimination, are often analyzed to optimize experimental protocols.

Vincristine sulfate continues to be an essential compound for fundamental cancer biology studies, enabling researchers to explore cellular division, apoptosis induction, and drug resistance mechanisms. Its well-characterized mechanism of action and reproducible effects make it a cornerstone molecule in chemotherapy research laboratories.

Product Specifications

Mechanism of Action

Vincristine sulfate exerts its effects primarily through disruption of microtubule dynamics:

1. Microtubule Depolymerization
   Vincristine binds to β-tubulin dimers, preventing polymerization into microtubules. This inhibits mitotic spindle formation and leads to metaphase arrest.

2. Cell Cycle Arrest
   By disrupting spindle formation, vincristine induces G2/M phase arrest, preventing cell division. This mechanism is exploited in studies evaluating cell proliferation and tumor growth suppression.

3. Apoptosis Induction
   Arrested cells undergo programmed cell death via intrinsic and extrinsic pathways. Studies often monitor caspase activation, mitochondrial membrane potential changes, and DNA fragmentation as apoptotic markers.

4. Combination Therapy Research
   Vincristine is commonly combined with other chemotherapeutics or biologics in laboratory studies to assess synergistic effects, optimize dosing strategies, and investigate mechanisms of multidrug resistance.

5. Microtubule-Associated Protein Interaction
   Vincristine interferes with microtubule-associated proteins (MAPs), altering microtubule stability and intracellular trafficking. This mechanism is explored in neurotoxicity studies and mitosis research.

6. Pharmacokinetic Investigations
   Research on vincristine includes its cellular uptake, tissue distribution, metabolism (CYP3A-mediated), and efflux via P-glycoprotein, providing insights into drug resistance mechanisms.

   

Side Effects

In controlled laboratory studies, vincristine sulfate demonstrates dose-dependent cytotoxicity:

• Neurotoxicity: Peripheral neuropathy is observed in neuronal cell models at high concentrations.

• Cytotoxicity: Rapidly dividing cells, including cancer cell lines, are particularly sensitive, whereas non-dividing cells are less affected.

• Mitotic Arrest: Prolonged metaphase arrest may lead to apoptosis, which is leveraged in research but must be carefully monitored in experimental design.

• Handling Precautions: Vincristine sulfate should be handled with gloves and protective equipment in a biosafety cabinet to avoid accidental exposure.

Keywords

Vincristine sulfate, vinca alkaloid, chemotherapy research, anti-mitotic agent, apoptosis research, cell cycle inhibitor, anticancer mechanism, laboratory research chemical, high-purity chemotherapy agent, in vitro drug testing

Shipping Guarantee

All Vincristine Sulfate shipments are handled using validated cold-chain logistics to preserve compound integrity. Each package is sealed in moisture-proof containers with secondary protective wrapping and continuous temperature monitoring. Products are shipped via express international couriers with full tracking and insurance coverage.

Trade Assurance

We Vincristine Sulfate ensure product authenticity, verified ≥99% purity, and compliance with analytical standards (HPLC, MS, NMR). Each batch is supplied with a Certificate of Analysis (CoA). Our trade assurance policy guarantees replacement or refund for any deviation from listed specifications.

Payment Support

We Vincristine Sulfate provide flexible and secure global payment options to support international research transactions. Accepted payment methods include PayPal, major credit cards (Visa, MasterCard, American Express), telegraphic transfer (T/T), and cryptocurrencies (USDT, Bitcoin, Ethereum). All transactions are protected by industry-standard encryption and verified payment gateways to ensure confidentiality and fund security.

Disclaimer

All Vincristine Sulfate products listed are intended for laboratory research use only and not for human or veterinary use. They are not drugs, medical devices, or diagnostics and should not be administered to humans or animals. Researchers must handle all materials in accordance with institutional biosafety and chemical safety guidelines. The information provided is for scientific reference only and does not imply therapeutic efficacy, safety, or regulatory approval.