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Updated: Jun 12, 2026

Assessment of Mitochondrial Functions and Cell Viability in Renal Cells Overexpressing Protein Kinase C Isozymes
Published on: January 7, 2013
Functional polymorphisms in cell death pathway genes and risk of renal cell carcinoma
Jian Zhu1, Chao Qin, Meilin Wang
1Department of Urology, The First Affiliated Hospital of Nanjing Medical University, China.
Abstract:
The FAS/FAS ligand (FASL) system plays a key role in regulating apoptotic cell death, and corruption of this signaling pathway has been shown to participate in tumorigenesis. However, the effects of functional promoter polymorphisms of the CASP8, FAS, and FASL genes on risk of renal cell carcinoma (RCC) are unknown. In this study, we genotyped CASP8 -652 6N ins/del, FAS -1377 G > A, FAS -670 A > G, and FASL -844 C > T polymorphisms in a hospital-based case-control study of 353 patients diagnosed with RCC and 365 cancer-free controls in a Chinese population. Compared with CASP8 -652 ins/ins genotype, the del/del genotype had a significantly decreased RCC risk [adjusted odds ratio (OR) = 0.36, 95% confidence interval (CI) = 0.16-0.84]. For FAS -1377 G > A polymorphism, a significantly increased risk of RCC was found for AA (adjusted OR = 1.65, 95% CI = 1.03-2.64) and GA (adjusted OR = 1.41, 95% CI = 1.02-1.94) genotypes compared with GG genotype. When we combined these two polymorphisms together, we found that individuals carrying CASP8 -652 6N ins/del and FAS -1377 GG genotypes or CASP8 -652 6N del/del and FAS -1377 GG genotypes were associated with a statistically significantly decreased risk of RCC (adjusted OR = 0.46, 95% CI = 0.24-0.88 and OR = 0.12, 95% CI = 0.02-0.58, respectively) compared with individuals carrying CASP8 -652 6N ins/ins and FAS -1377 AA genotypes. These results suggest that the CASP8 -652 6N ins/del and FAS -1377 G > A polymorphisms are involved in the susceptibility to developing RCC in Chinese populations.
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