PMID- 31305441 OWN - NLM STAT- MEDLINE DCOM- 20190722 LR - 20231213 IS - 1536-5964 (Electronic) IS - 0025-7974 (Print) IS - 0025-7974 (Linking) VI - 98 IP - 28 DP - 2019 Jul TI - The clinical significance of PYCR1 expression in renal cell carcinoma. PG - e16384 LID - 10.1097/MD.0000000000016384 [doi] LID - e16384 AB - Pyrroline-5-carboxylate reductase 1 (PYCR1) is an enzyme involved in cell metabolism and is upregulated in cancer. However, the correlations of PYCR1 expression with the clinicopathological features and prognosis of renal cell carcinoma (RCC) remain unclear. The purpose of this study was to identify the expression of PYCR1 and its clinical relevance in RCC patients.PYCR1 mRNA expression differences between RCC and the adjacent normal renal tissues were assessed using the Cancer Genome Atlas database (TCGA). Subsequently, the expression of PYCR1 mRNA and protein were evaluated by quantitative real-time polymerase chain reaction, Western blot, and immunochemistry using 30 paired frozen samples of RCC and the adjacent normal renal tissues. The protein expression of PYCR1 was evaluated by immunostaining formalin-fixed, paraffin-embedded sections of RCC samples from 96 patients who underwent radical nephrectomy, and its relationship with clinical features were analyzed. Nonpaired t tests were used to statistically analyze the differences between the 2 groups. Cox univariable and multivariable analyses of overall survival (OS) among RCC patients were performed.The expression of PYCR1 mRNA was significantly upregulated in RCC tissues compared to adjacent normal renal tissues in the TCGA database (P < .01). The area under the receiver operating characteristic curve value was 0.748. The expression of PYCR1 mRNA and protein was significantly upregulated in RCC compared with that in paired normal renal tissues (P < .01). Higher PYCR1 levels were associated with metastasis (P < .01). Kaplan-Meier survival curves indicated that higher PYCR1 expression was correlated with poorer OS. Therefore, PYCR1 may act as a novel prognostic marker and therapeutic target in the diagnosis and treatment of RCC. FAU - Weijin, Fu AU - Weijin F AD - Department of Urology, The First Affiliated Hospital of GuangXi Medical University, NanNing. FAU - Zhibin, Xie AU - Zhibin X AD - Department of Urology, The First Affiliated Hospital of GuangXi Medical University, NanNing. FAU - Shengfeng, Zheng AU - Shengfeng Z AD - Department of Urology, The First Affiliated Hospital of GuangXi Medical University, NanNing. FAU - Xiaoli, Yang AU - Xiaoli Y AD - Scientific Research Center, GuiLin Medical University, GuiLin. FAU - Qijian, Ding AU - Qijian D AD - Department of Urology, The First Affiliated Hospital of GuangXi Medical University, NanNing. FAU - Jiayi, Liu AU - Jiayi L AD - Department of Pathology, The First Affiliated Hospital of Guang, Xi Medical University, NanNing, GuangXi, China. FAU - Qiumei, Liang AU - Qiumei L AD - Department of Urology, The First Affiliated Hospital of GuangXi Medical University, NanNing. FAU - Yilong, Chen AU - Yilong C AD - Department of Urology, The First Affiliated Hospital of GuangXi Medical University, NanNing. FAU - Hua, Mi AU - Hua M AD - Department of Urology, The First Affiliated Hospital of GuangXi Medical University, NanNing. FAU - Deyun, Liu AU - Deyun L AD - Department of Urology, The First Affiliated Hospital of GuangXi Medical University, NanNing. FAU - Jiwen, Cheng AU - Jiwen C AD - Department of Urology, The First Affiliated Hospital of GuangXi Medical University, NanNing. LA - eng PT - Journal Article PL - United States TA - Medicine (Baltimore) JT - Medicine JID - 2985248R RN - 0 (Biomarkers, Tumor) RN - 0 (RNA, Messenger) RN - EC 1.5.1.- (Pyrroline Carboxylate Reductases) SB - IM MH - Biomarkers, Tumor/metabolism MH - Carcinoma, Renal Cell/*enzymology/mortality/pathology MH - Female MH - Gene Expression Regulation, Neoplastic MH - Humans MH - Kidney/enzymology/pathology MH - Kidney Neoplasms/*enzymology/mortality/pathology MH - Male MH - Middle Aged MH - Prognosis MH - Pyrroline Carboxylate Reductases/*metabolism MH - RNA, Messenger/metabolism MH - Survival Analysis MH - delta-1-Pyrroline-5-Carboxylate Reductase PMC - PMC6641676 COIS- The authors have no conflicts of interest to disclose. EDAT- 2019/07/16 06:00 MHDA- 2019/07/23 06:00 PMCR- 2019/07/12 CRDT- 2019/07/16 06:00 PHST- 2019/07/16 06:00 [entrez] PHST- 2019/07/16 06:00 [pubmed] PHST- 2019/07/23 06:00 [medline] PHST- 2019/07/12 00:00 [pmc-release] AID - 00005792-201907120-00054 [pii] AID - MD D-18-08452 [pii] AID - 10.1097/MD.0000000000016384 [doi] PST - ppublish SO - Medicine (Baltimore). 2019 Jul;98(28):e16384. doi: 10.1097/MD.0000000000016384.