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由CENPA驱动的STMN1转录抑制了肝细胞癌中的铁

Daomiao Liang¹, Lanzhu Luo², Jiang Wang²

¹Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China.

Journal of clinical and translational hepatology

|August 14, 2023

概括

中核蛋白A (CENPA) 通过抑制铁亡,促进肝细胞癌 (HCC) 的生长. CENPA上调STMN1转录,增强HCC细胞中的恶性表型.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

铁酶在肝细胞癌 (HCC) 中起着调节作用,但其潜在的分子机制尚未完全理解.
研究与铁亡相关的基因 (ferrGenes) 对于理解HCC进展至关重要.

研究的目的:

阐明ferrGenes在HCC生长中的机制基础.
确定与铁死相关的HCC中的关键调节网络和预后标志物.

主要方法:

利用癌症基因组图谱 (TCGA) 和GTEx数据集来识别差异表达的ferrGenes和转录因子 (TF).
使用相关性分析构建了一个TF-ferrGene联合表达监管网络.
使用拉索回归和多变量考克斯分析开发了一个预后风险模型.
通过HCC组织和细胞系的检测验证了关键基因表达和功能.

主要成果:

一个基于八个TF-ferrGene调节网络基因的预后风险模型准确地预测了HCC患者的预后,并与临床特征相关联.
中心蛋白蛋白A (CENPA) 和STMN1被确定为HCCferroptosis中TF-ferrGene调节网络的关键参与者.
在HCC组织和细胞中,CENPA和STMN1过度表达,CENPA促进STMN1转录和恶性表型,同时抑制铁亡.

结论:

通过上调STMN1转录,CENPA抑制了HCC细胞中的铁亡.
CENPA/STMN1的这一监管轴促进了HCC的生长和进展.

关键词:

在 CENPA 中.铁性化 (ferroptosis) 是一种与铁生相关的基因肝细胞癌是肝细胞癌.预测风险模型的预测风险模型.在STMN1中,它是STMN1.TF-ferrgene 监管网络的铁基转录因子是一种转录因子.

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