Title : Rescue of platinum-damaged oocytes from programmed cell death through inactivation of the p53 family signaling network.

Pub. Date : 2013 Aug

PMID : 23598363






8 Functional Relationships(s)
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1 Recently, the c-Abl kinase inhibitor imatinib mesylate (imatinib) has become the focus of research as a fertoprotective drug against cisplatin. Cisplatin c-abl oncogene 1, non-receptor tyrosine kinase Mus musculus
2 We found that, before apoptosis, cisplatin induces c-Abl and TAp73 expression in the oocyte. Cisplatin c-abl oncogene 1, non-receptor tyrosine kinase Mus musculus
3 While imatinib was unable to block cisplatin-induced DNA damage and damage response, such as the upregulation of p53, imatinib inhibited the cisplatin-induced nuclear accumulation of c-Abl/TAp73 and the subsequent downregulation of TAp63 and upregulation of Bax, thereby abrogating oocyte cell death. Cisplatin c-abl oncogene 1, non-receptor tyrosine kinase Mus musculus
4 The expression kinetics of TAp63, c-Abl and TAp73 suggest that cisplatin activates TAp63-dependent expression of c-Abl and TAp73 and, in turn, the activation of TAp73 by c-Abl-induced BAX expression. Cisplatin c-abl oncogene 1, non-receptor tyrosine kinase Mus musculus
5 The expression kinetics of TAp63, c-Abl and TAp73 suggest that cisplatin activates TAp63-dependent expression of c-Abl and TAp73 and, in turn, the activation of TAp73 by c-Abl-induced BAX expression. Cisplatin c-abl oncogene 1, non-receptor tyrosine kinase Mus musculus
6 The expression kinetics of TAp63, c-Abl and TAp73 suggest that cisplatin activates TAp63-dependent expression of c-Abl and TAp73 and, in turn, the activation of TAp73 by c-Abl-induced BAX expression. Cisplatin c-abl oncogene 1, non-receptor tyrosine kinase Mus musculus
7 Our findings indicate that imatinib protects oocytes from cisplatin-induced cell death by inhibiting c-Abl kinase, which would otherwise activate TAp73-BAX-mediated apoptosis. Cisplatin c-abl oncogene 1, non-receptor tyrosine kinase Mus musculus
8 Thus, imatinib and other c-Abl kinase inhibitors provide an intriguing new way to halt cisplatin-induced oocyte death in early follicles and perhaps conserve the endocrine function of the ovary against chemotherapy. Cisplatin c-abl oncogene 1, non-receptor tyrosine kinase Mus musculus