Regarding the anti-apoptotic effects in ovarian cancer cells, leptin has been documented to inhibit several components of apoptotic machinery like tumour necrosis factor receptor 1 (TNFR1), Bad, caspase-6, and caspase-3 (Ptak et al., 2013[a]; Ptak et al., 2013[b]). This evidence concerns the gene LEP and ovarian carcinoma.