The influence of the anticancer drug cyclophosphamide on fertilization and embryo growth in a mouse model

Effect of Imatinib Coadministration on in Vitro Oocyte Acquisition and Subsequent Embryo Development in Cyclophosphamide-Treated Mice

The study aimed to investigate the effect of imatinib coadministration on in vitro oocyte acquisition and subsequent embryo development in cyclophosphamide (Cp)-treated mice. Female BDF1 mice were injected with 5 IU equine chorionic gonadotropin (eCG) followed by 5 IU human chorionic gonadotropin 48 hours later and then oocytes were retrieved 14 hours later. Twenty-four hours prior to eCG administration, 25, 50, or 75 mg/kg Cp with or without 7.5 mg/kg imatinib was injected. In the 25 and 50 mg/kg Cp groups, imatinib coadministration significantly enhanced the percentage of mature oocytes (+16.4% and +10.4%) and significantly decreased the percentage of dead oocytes (-25.9% and -15.3%). Imatinib coadministration significantly enhanced the fertilization rate (FR) in the 50 mg/kg Cp group (+12.2%). Intraoocyte spindle integrity was significantly affected by Cp and was rescued by imatinib coadministration. Coadministration of imatinib prior to ovarian stimulation has the benefit of enhancing oocyte maturity and the in vitro FR in Cp-treated mice .