Background:

Ifosfamide is an alkylating chemotherapeutic agent with activity against a wide range of tumors.

Ifosfamide is an alkylating chemotherapeutic agent with activity against a wide range of tumors[1]. Ifosfamide is activated by the cytochrome P450 family. Ifosfamide (0-5 mM) suppresses the viability of CYP2B1-expressing C8III-1 cells, while it is cytotoxic to the non-CYP2B1-expressing CrFK cells only at high concentration (5 mM)[2]. CYP BM3 mutants activates Ifosfamide, and Ifosfamide shows inhibitory activity against human U2OS cells[3].

Ifosfamide (50 mg/kg, i.p.) treatment before mating increases percentage of post-implantation loss and resorbs fetuses in pregnant rats. Ifosfamide also (50 mg/kg, i.p.) decreases the progesterone in the serum of pregnant rats. However, Ifosfamide causes no obvious difference with the control rats at 25 mg/kg. Ifosfamide (25, 50 mg/kg, i.p.) induces apoptosis and histological changes in the placentas and prenatal rats, most sensitive fetal organs are the brain, liver and kidney[1].

参考文献:
[1]. Helal M. Prenatal effects of transplacental exposure to ifosfamide in rats. Biotech Histochem. 2016 Jul;91(5):357-68.
[2]. Karle P, et al. Necrotic, rather than apoptotic, cell death caused by cytochrome P450-activated ifosfamide. Cancer Gene Ther. 2001 Mar;8(3):220-30.
[3]. Vredenburg G, et al. Activation of the anticancer drugs cyclophosphamide and ifosfamide by cytochrome P450 BM3 mutants. Toxicol Lett. 2015 Jan 5;232(1):182-92.