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Transmembrane Channel-Like 5 (TMC5) promotes prostate cancer cell proliferation through cell cycle regulation.
Biochimie ( IF 3.9 ) Pub Date : 2019-07-26 , DOI: 10.1016/j.biochi.2019.07.017
Wanfeng Zhang 1 , Sen Wang 2 , Xianqin Zhang 2 , Kun Liu 2 , Jing Song 1 , Xue Leng 2 , Ruihan Luo 1 , Longke Ran 1
Affiliation  

BACKGROUND In this study, we aimed to investigate the biological functions of Transmembrane Channel-Like 5 (TMC5) by bioinformatics and molecular biology methods in prostate cancer (PCa). METHODS We assessed the mRNA expression level of TMC5 in PCa with public database the Cancer Genome Atlas (TCGA) and Oncomine. The biological functions were demonstrated by bioinformatics methods and siRNA mediated knockdown experiments. Reverse transcription polymerase chain reaction (RT-PCR), immunohistochemical (IHC) experiments and microarray analysis were performed to confirm the results. RESULTS TMC5 expression level was significantly up-regulated in 4 independent PCa cohorts compared to normal group. Moreover, TMC5 has higher diagnostic efficiency than PSA-KLK3 (AUC (Area Under Curve) = 0.772, P < 0.001). The high expression of TMC5 was associated with clinical Gleason score, prostate-specific antigen (PSA) level, androgen receptor (AR) activity score and the genes which were known frequently mutated in PCa progression (P < 0.05). Functionally, Gene Otology (GO) analysis suggested that TMC5 was related to cell development; TMC5 knockdown significantly inhibited PCa cells proliferation by arresting cell cycle at G1 phase. Drug sensitivity experiments showed TMC5 knockdown significantly enhanced cells sensitivity to 5-Fluorouracil. Microarray analysis showed TMC5 knockdown significantly inhibited cell cycle and tumor progression. CONCLUSION Our findings revealed that TMC5 promoted PCa cell proliferation through cell cycle regulation and could be a powerful and hopeful target for PCa treatment.

中文翻译:

跨膜通道样5(TMC5)通过细胞周期调控促进前列腺癌细胞的增殖。

背景技术在本研究中,我们旨在通过生物信息学和分子生物学方法研究跨膜通道样5(TMC5)在前列腺癌(PCa)中的生物学功能。方法我们通过公共数据库癌症基因组图谱(TCGA)和Oncomine评估了PCa中TMC5的mRNA表达水平。生物学功能通过生物信息学方法和siRNA介导的敲除实验得到证明。进行了逆转录聚合酶链反应(RT-PCR),免疫组化(IHC)实验和微阵列分析,以确认结果。结果与正常组相比,在4个独立的PCa队列中TMC5表达水平显着上调。此外,TMC5的诊断效率高于PSA-KLK3(AUC(曲线下面积)= 0.772,P <0.001)。TMC5的高表达与临床Gleason评分,前列腺特异性抗原(PSA)水平,雄激素受体(AR)活性评分以及PCa进展中经常突变的基因有关(P <0.05)。从功能上讲,基因Otology(GO)分析表明TMC5与细胞发育有关。TMC5敲低通过将细胞周期停在G1期来显着抑制PCa细胞增殖。药物敏感性实验表明,TMC5敲低显着增强了细胞对5-氟尿嘧啶的敏感性。芯片分析显示,TMC5的敲低显着抑制了细胞周期和肿瘤的进展。结论我们的发现表明TMC5可通过细胞周期调控促进PCa细胞增殖,并可能成为PCa治疗的有力和有希望的靶标。前列腺特异性抗原(PSA)水平,雄激素受体(AR)活性评分以及PCa进展中经常突变的已知基因(P <0.05)。从功能上讲,基因Otology(GO)分析表明TMC5与细胞发育有关。TMC5敲低通过将细胞周期停在G1期来显着抑制PCa细胞增殖。药物敏感性实验表明,TMC5敲低显着增强了细胞对5-氟尿嘧啶的敏感性。芯片分析显示,TMC5的敲低显着抑制了细胞周期和肿瘤进展。结论我们的发现表明TMC5可通过细胞周期调控促进PCa细胞增殖,并可能成为PCa治疗的有力和有希望的靶标。前列腺特异性抗原(PSA)水平,雄激素受体(AR)活性评分以及PCa进展中经常突变的已知基因(P <0.05)。从功能上讲,基因Otology(GO)分析表明TMC5与细胞发育有关。TMC5敲低通过将细胞周期停在G1期来显着抑制PCa细胞增殖。药物敏感性实验表明,TMC5敲低显着增强了细胞对5-氟尿嘧啶的敏感性。芯片分析显示,TMC5的敲低显着抑制了细胞周期和肿瘤的进展。结论我们的发现表明TMC5通过细胞周期调控促进PCa细胞增殖,并可能成为PCa治疗的有力和希望的靶点。0.05)。从功能上讲,基因Otology(GO)分析表明TMC5与细胞发育有关。TMC5敲低通过将细胞周期停在G1期来显着抑制PCa细胞增殖。药物敏感性实验表明,TMC5敲低显着增强了细胞对5-氟尿嘧啶的敏感性。芯片分析显示,TMC5的敲低显着抑制了细胞周期和肿瘤的进展。结论我们的发现表明TMC5可通过细胞周期调控促进PCa细胞增殖,并可能成为PCa治疗的有力和有希望的靶标。0.05)。从功能上讲,基因Otology(GO)分析表明TMC5与细胞发育有关。TMC5敲低通过将细胞周期停在G1期来显着抑制PCa细胞增殖。药物敏感性实验表明,TMC5敲低显着增强了细胞对5-氟尿嘧啶的敏感性。芯片分析显示,TMC5的敲低显着抑制了细胞周期和肿瘤的进展。结论我们的发现表明TMC5可通过细胞周期调控促进PCa细胞增殖,并可能成为PCa治疗的有力和有希望的靶标。药物敏感性实验表明,TMC5敲低显着增强了细胞对5-氟尿嘧啶的敏感性。芯片分析显示,TMC5的敲低显着抑制了细胞周期和肿瘤的进展。结论我们的发现表明TMC5可通过细胞周期调控促进PCa细胞增殖,并可能成为PCa治疗的有力和有希望的靶标。药物敏感性实验表明,TMC5敲低显着增强了细胞对5-氟尿嘧啶的敏感性。芯片分析显示,TMC5的敲低显着抑制了细胞周期和肿瘤进展。结论我们的发现表明TMC5可通过细胞周期调控促进PCa细胞增殖,并可能成为PCa治疗的有力和有希望的靶标。
更新日期:2019-07-26
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