构建TP53突变相关的ceRNA网络作为肝细胞癌的预后生物标志物
Dong Wang1, Wenxiang Shi2, Chenjie Qiu1
1Department of General Surgery, Changzhou Hospital of Traditional Chinese Medicine, Changzhou 213000, China.
Heliyon
|May 13, 2024
概括
这项研究揭示了与肝细胞癌 (HCC) 中TP53突变相关的核心竞争性RNA网络 (ceRNA). 这些发现突出了MEX3A作为关键参与者,为HCC提供了新的治疗点.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 分子生物学分子生物学
背景情况:
- 肝细胞癌 (HCC) 构成了全球严重的健康威胁.
- 涉及竞争的内源RNA (ceRNA) 的调控网络在HCC病变发生过程中至关重要.
- 在HCC中,TP53的改变很常见,并影响miRNA和lncRNA的表达.
研究的目的:
- 构建和分析与HCC中TP53突变相关的ceRNA网络.
- 在这个网络中识别关键的调节RNA和潜在的治疗点.
- 研究MEX3A在HCC进展中的作用及其与瘤微环境的关系.
主要方法:
- 从cBioPortal数据库收集了TP53突变数据.
- 进行差异表达分析以确定与TP53突变相关的RNA.
- 预测使用miRcode,miRDB和TargetScan的lncRNA-miRNA-mRNA相互作用.
- 使用Cytoscape构建和可视化ceRNA网络.
- 分析了MEX3A的甲基化,突变,蛋白质-蛋白质相互作用,基因组丰富,免疫力和药物敏感性.
主要成果:
- 确定了一个包含28个lncRNA,4个miRNA和31个mRNA的ceRNA网络.
- 选了一个涉及TP53改变基因的核心ceRNA网络 (LINC00491/TCL6-hsa-miR-139-5p-MEX3A).
- 观察到MEX3A甲基化减少和HCC中突变频率增加.
- 发现MEX3A表达的升高与HCC免疫微环境的变化相关.
结论:
- 在HCC中成功构建了TP53突变相关的ceRNA网络.
- 已确定的核心ceRNA网络,特别是MEX3A,为HCC机制提供了新的见解.
- 这个网络为开发HCC新的治疗策略提供了潜在的途径.
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