Vincristine is an antimitotic vinca alkaloid, isolated from the plant V. rosea. It irreversibly blocks mitosis by binding to tubulin (K_i = 85 nM) and inhibiting tubulin polymerization.Vincristine is exported from cells via the ATP-binding cassette transporter P-glycoprotein, but not by multidrug resistance-associated protein. Its effectiveness in blocking the proliferation of cancer cells is affected by overexpression of P-glycoprotein.

Vincristine Sulfate is a kind of microtubule function inhibitor with IC50 of 10.4±1.1, 28.1±3.4, 22.4±2.1 µM for HL-60, Bel7402, HO-8910, respectively. It is the sulfate salt of a natural alkaloid isolated from the plant Vinca rosea Linn with antimitotic and antineoplastic activities. Vincristine binds irreversibly to microtubules and spindle proteins in S phase of the cell cycle and interferes with the formation of the mitotic spindle, thereby arresting tumor cells in metaphase. The IC50 and IC90 of vincristine for the 4 vaccine-associated feline sarcoma (VAFS) cell lines were between 0.005 to 0.039 µg/ml and 0.045 to 1.027 µg/ml, respectively .This agent also depolymerizes microtubules and may also interfere with amino acid, cyclic AMP, and glutathione metabolism.
 

Vincristine sulfate is the sulfate salt of a natural alkaloid isolated from the periwinkle plant of the oleander family with antimitotic and antineoplastic activities. Vincristine binds irreversibly to microtubules and spindle proteins in S phase of the cell cycle and interferes with the formation of the mitotic spindle, thereby arresting tumor cells in metaphase. This agent also depolymerizes microtubules and may also interfere with amino acid, cyclic AMP, and glutathione metabolism; calmodulin-dependent Ca++ -transport ATPase activity; cellular respiration; and nucleic acid and lipid biosynthesis.

• Product name

• Vincristine sulfate salt, Microtubule inhibitor

• Description

  Microtubule inhibitor

• Biological description

  Anticancer agent; microtubule depolymerizer.

• Purity

  > 96%

• CAS Number

  2068-78-2

• Chemical structure

  

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