Chetry Mandika, Bhandari Adheesh, Lin Yue
Department of Oncology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China.
Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
J Cancer. 2022 Mar 14;13(5):1695-1705. doi: 10.7150/jca.69574. eCollection 2022.
BET family proteins have a role as epigenetic readers to accelerate the transcription of target genes. Several studies have shown that the BET protein family played important roles in several biological processes. Although, the prognostic influence of individual BET genes family in ovarian cancer patients remains unclear. We investigated BET mRNA prognostic roles subtypes in ovarian cancer patients by means of the KM plotter database. The BET mRNA expression and protein in cancer and normal ovarian cells was determined using qRTPCR and western blot. We used the HPA database to look at the protein expression profiles in normal and cancer tissues for this study. Among BET members, mRNA expression BRD2 showed improve OS in all the ovarian malignancy patients, serous patients, stage III and IV, grade II and grade III, TP53 mutated ovarian cancer patients, as well as all patients treated with Platin based chemotherapy. As for BRD3, we found that BRD3 expression was related to better OS in endometrioid ovarian carcinoma and stage III+IV ovarian carcinoma patients, as well as all patients managed with Taxol and concurrent Taxol+Platin based chemotherapy. In addition, BRDT was associated with better OS in all ovarian carcinoma patients, grade I and grade III, all clinical stage (I+II, III+IV) patients, as well as all patients cured with Taxol and concurrent Taxol+Platin chemotherapy. We conclude that high expression of BRD2, BRD3, and BRDT predicted a better prognosis. mRNA expression of BET family is considerably associated with the prognosis of ovarian carcinoma and individual BET family gene could act as a predictive prognostic indicator in ovarian carcinoma.
BET家族蛋白作为表观遗传阅读器,可加速靶基因的转录。多项研究表明,BET蛋白家族在多个生物学过程中发挥重要作用。然而,单个BET基因家族对卵巢癌患者的预后影响仍不清楚。我们通过KM plotter数据库研究了BET mRNA在卵巢癌患者中的预后作用亚型。使用qRTPCR和蛋白质印迹法测定癌组织和正常卵巢细胞中BET mRNA表达及蛋白水平。我们使用HPA数据库查看本研究中正常组织和癌组织中的蛋白表达谱。在BET家族成员中,BRD2的mRNA表达在所有卵巢恶性肿瘤患者、浆液性患者、III期和IV期患者、II级和III级患者、TP53突变的卵巢癌患者以及所有接受铂类化疗的患者中均显示出总生存期改善。至于BRD3,我们发现BRD3表达与子宫内膜样卵巢癌和III + IV期卵巢癌患者以及所有接受紫杉醇和同时接受紫杉醇+铂类化疗的患者的较好总生存期相关。此外,BRDT与所有卵巢癌患者、I级和III级患者、所有临床分期(I + II、III + IV)患者以及所有接受紫杉醇和同时接受紫杉醇+铂类化疗治愈的患者的较好总生存期相关。我们得出结论,BRD2、BRD3和BRDT的高表达预示着较好的预后。BET家族的mRNA表达与卵巢癌的预后密切相关,单个BET家族基因可作为卵巢癌的预测性预后指标。