Ke Miao, Xu Jie, Ouyang Ye, Chen Junyu, Yuan Donglan, Guo Ting
Department of Gynecology and Obstetrics, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China.
Institute of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China.
Transl Oncol. 2024 Nov;49:102088. doi: 10.1016/j.tranon.2024.102088. Epub 2024 Aug 20.
This study investigates the expression and functional roles of SUGT1 in ovarian cancer, utilizing data from The Cancer Genome Atlas (TCGA) and Genotype-Tissue Expression (GTEx) projects. Our analyses reveal that SUGT1 is significantly upregulated in ovarian cancer tissues compared to normal controls. We further explore the prognostic value of SUGT1, where elevated expression correlates with poorer patient outcomes, particularly in ovarian cancer. The functional implications of SUGT1 in cancer biology were assessed through in vitro and in vivo experiments. Gene Set Enrichment Analysis (GSEA) indicates a significant association between high SUGT1 expression and the activation of glycolytic pathways, suggesting a potential role in metabolic reprogramming. Inhibition of SUGT1 via siRNA in ovarian cancer cell lines results in decreased proliferation and increased apoptosis, along with reduced migration and invasion capabilities. Additionally, our study identifies the transcription factor ELF1 as a significant regulator of SUGT1 expression. Through promoter analysis and chromatin immunoprecipitation, we demonstrate that ELF1 directly binds to the SUGT1 promoter, enhancing its transcription. This regulatory mechanism underscores the importance of transcriptional control in cancer metabolism, providing insights into potential therapeutic targets. Our findings establish SUGT1 as a crucial player in the oncogenic processes of ovarian cancer, influencing both metabolic pathways and transcriptional regulation. This highlights its potential as a biomarker and therapeutic target in managing ovarian cancer.
本研究利用癌症基因组图谱(TCGA)和基因型-组织表达(GTEx)项目的数据,调查了SUGT1在卵巢癌中的表达及其功能作用。我们的分析显示,与正常对照相比,SUGT1在卵巢癌组织中显著上调。我们进一步探讨了SUGT1的预后价值,发现其表达升高与患者预后较差相关,尤其是在卵巢癌中。通过体外和体内实验评估了SUGT1在癌症生物学中的功能意义。基因集富集分析(GSEA)表明,高SUGT1表达与糖酵解途径的激活之间存在显著关联,提示其在代谢重编程中可能发挥作用。在卵巢癌细胞系中通过siRNA抑制SUGT1会导致细胞增殖减少、凋亡增加,同时迁移和侵袭能力降低。此外,我们的研究确定转录因子ELF1是SUGT1表达的重要调节因子。通过启动子分析和染色质免疫沉淀,我们证明ELF1直接结合到SUGT1启动子上,增强其转录。这种调控机制强调了转录控制在癌症代谢中的重要性,为潜在治疗靶点提供了见解。我们的研究结果表明SUGT1是卵巢癌致癌过程中的关键因子,影响代谢途径和转录调控。这突出了其作为卵巢癌管理中的生物标志物和治疗靶点的潜力。