Background:

Vincristine is a naturally occurring alkaloid that potently inhibits the tubulin addition with the inhibition constant Ki value of 0.085 μM and exhibits an anti-proliferative activity against B16 melanoma cells with the half maximal inhibition concentration IC50 value of 0.45 M [1].

Vincristine is extracted from leaves of the periwinkle plant Catharanthus roseus (L.) G. Don of the family Apocynaceae and has an asymmetric structure consisting of two dimers, a dihydroindole nucleus (vindoline) and an indole nucleus (catharanthine), that are linked by a carbon-carbon bond [2].

Vincristine has been found to be active against a wild range of malignancies, including acute lymphoblastic leukemia (ALL), acute non-lymphoblastic leukemia (ANLL), non-Hodgkin lymphoma (NHL), Hodgkin’s disease and brain tumors [2].

参考文献:
[1] Jordan MA, Himes RH, Wilson L. Comparison of the effects of vinblastine, vincristine, vindesine, and vinepidine on microtubule dynamics and cell proliferation in vitro. Cancer Res. 1985 Jun;45(6):2741-7.
[2] Gidding CE1, Kellie SJ, Kamps WA, de Graaf SS. Vincristine revisited. Crit Rev Oncol Hematol. 1999 Feb;29(3):267-87.