在癌症和心房动中准PDCD4:从综合的多细胞和单细胞分析中获得的机制性见解
Juledezi Hailati1, Zhiqiang Liu1, Lei Zhang1
1Cardiovascular Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
Frontiers in oncology
|August 6, 2025
概括
编程细胞死亡因子4 (PDCD4) 在心房动 (AF) 中被上调,通过关键基因调节疾病进展. 针对PDCD4可能为AF和癌症患者提供治疗效益.
科学领域:
- 心血管生物学 心血管生物学
- 分子瘤学分子瘤学
- 系统生物学 系统生物学
背景情况:
- 心房动 (AF) 是一种复杂的心血管疾病,分子机制尚不清楚.
- 编程细胞死亡因子4 (PDCD4) 在AF病变发生过程中的作用目前尚不清楚.
- 这项研究研究了PDCD4相关的基因和AF中的调节途径.
研究的目的:
- 在心房动中识别与PDCD4相关的关键基因.
- 阐明在AF中涉及PDCD4的调控机制.
- 根据PDCD4路径探索AF的潜在治疗点.
主要方法:
- 蛋白与蛋白相互作用 (PPI) 网络构建和转录组分析以确定差异表达基因 (DEG).
- 微RNA (miRNA) -mRNA和转录因子 (TF) 分析以探索调节网络.
- 单细胞RNA测序 (scRNA-seq) 用于识别关键细胞类型和细胞间通信.
主要成果:
- 在AF患者的外周血液单核细胞 (PBMC) 中,PDCD4显著上调.
- 通过差异表达和PPI网络分析确定了11个关键基因.
- 发现了调节关系,包括mmu-miR-429-3p针对Sirt1,PDCD4与其他基因共享调节作用. Sirt1 和 Atad5 受到 Thap9.9 的监管.
- 药物预测确定了sirtinol和trichostatin作为Atad5和Sirt1.1的潜在治疗方法.
- scRNA-seq确定了动脉和静脉内皮细胞作为关键细胞类型.
- 在上腺皮癌 (ACC) 等癌症中,PDCD4失调可能会通过免疫调节增加AF风险.
结论:
- PDCD4通过调节炎症,纤维化和代谢途径,在AF进展中发挥作用.
- 转录组和单细胞分析为AF分子过程提供了全面的见解.
- PDCD4成为心房动的潜在治疗标.
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