[HTML][HTML] Prognostic significance of ubiquinol-cytochrome c reductase hinge protein expression in patients with clear cell renal cell carcinoma

WS Liu, YD Liu, Q Fu, WJ Zhang, L Xu… - American Journal of …, 2016 - ncbi.nlm.nih.gov
WS Liu, YD Liu, Q Fu, WJ Zhang, L Xu, Y Chang, JJ Xu
American Journal of Cancer Research, 2016ncbi.nlm.nih.gov
Ubiquinol-cytochrome c reductase hinge protein (UQCRH), as a connecter between
cytochrome c 1 with cytochrome c in complex III of respiratory chain, is top-ranked
hypermethylated gene in clear cell renal cell carcinoma (ccRCC). This study aims to
evaluate the impact of UQCRH on recurrence and survival of 424 ccRCC patients enrolled
retrospectively from a single institution after surgical resection using immunohistochemistry
method. UQCRH was specifically downregulated in ccRCC, compared with papillary and …
Abstract
Ubiquinol-cytochrome c reductase hinge protein (UQCRH), as a connecter between cytochrome c 1 with cytochrome c in complex III of respiratory chain, is top-ranked hypermethylated gene in clear cell renal cell carcinoma (ccRCC). This study aims to evaluate the impact of UQCRH on recurrence and survival of 424 ccRCC patients enrolled retrospectively from a single institution after surgical resection using immunohistochemistry method. UQCRH was specifically downregulated in ccRCC, compared with papillary and chromophobe RCC. Moreover, patients with low UQCRH were prone to possess high T stage and TNM stage and associated with poor survival and early recurrence. UQCRH remained an independent favorable prognosticator for OS (Hazard rate [HR]: 0.510, 95% CI: 0.328-0.795, p= 0.003) and RFS (HR: 0.506, 95% CI: 0.334-0.767, p= 0.001) adjusting with other well-established factors using backward Cox model. Furthermore, in stratified subgroups, patients with low UQCRH had an increased risk of recurrence (HR: 0.452, 95% CI: 0.261-0.783, p= 0.005) and mortality (HR: 0.386, 95% CI: 0.205-0.726, p= 0.003) in subgroup of early TNM stage. Taken together, UQCRH is a potential independent favorable prognostic factor for recurrence and survival of patients with ccRCC after nephrectomy.
ncbi.nlm.nih.gov
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