Increased Nicotinamide Phosphoribosyltransferase and Cystathionine-β-Synthase in Renal Oncocytomas, Renal Urothelial Carcinoma, and Renal Clear Cell Carcinoma.
Increased Nicotinamide Phosphoribosyltransferase and Cystathionine-β-Synthase in Renal Oncocytomas, Renal Urothelial Carcinoma, and Renal Clear Cell Carcinoma.
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DOI：
10.21873/anticanres.11709
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发表时间：
2017-07
影响因子：
2
通讯作者：
Herrera GA
中科院分区：
文献类型：
--
作者：
Shackelford RE;Abdulsattar J;Wei EX;Cotelingam J;Coppola D;Herrera GA
Renal oncocytomas (ROs), and clear cell (RCC) and urothelial carcinomas (UC), are common renal neoplasms. Nicotinamide phosphoribosyltransferase (Nampt) catalyzes the rate-limiting step of NAD+ synthesis and its expression is increased in several tumors. Nampt concomitantly regulates hydrogen sulfide (H2S)-synthesizing enzyme levels, including cystathionine-β-synthase (CBS). We used tissue microarrays to examine Nampt and the H2S-synthesizing enzyme CBS protein levels in benign kidney, RCC, UC and ROs. Compared to benign kidney, all three neoplasms showed increased Nampt and CBS protein levels, with the levels increasing in RCC at higher Fuhrman grades. H2S is known to ameliorate chronic renal failure but, as yet, no role for H2S in renal neoplasia has been demonstrated. Here, we showed, for the first time, that Nampt, CBS and, likely, H2S likely play a role in malignant and benign neoplastic renal disease.
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