FASLG and hereditary clear cell renal cell carcinoma: Sejima et al. (2012) highlighted that there was a remarkable worse survival for renal cell carcinomas (RCC) patients with FASLG mRNA-positive expression after radical nephrectomy in comparison to those with FASLG mRNA-negative expression, which was similar to our finding that FASLG expression was increased in KIRC patients and decreased level of FASLG exhibited good clinical prognosis.