通过机器学习和多omics分析确定PSIP1作为骨髓瘤中的关键R循环调节器
Jiangbo Nie1,2,3, Shijiang Wang2,3, Yanxin Zhong2,3
1Department of Orthopedic Surgery, The First Hospital of Nanchang, The Third Affiliated Hospital of Nanchang University, Nanchang, China.
Cancer cell international
|April 23, 2025
概括
这项研究引入了一种新的R循环基因预测得分模型 (RGPSM) 来预测骨髓瘤 (OS) 患者的结果. 高RGPSM得分表明预后较差,瘤免疫微环境 (TME) 更抑制,突出显示PSIP1是OS进展的关键因素.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- R环的失调与癌症的发展和瘤免疫微环境 (TME) 有关.
- 在骨髓瘤 (OS) 发病过程中R环的具体作用尚不清楚.
- 了解R循环的参与对于开发OS的新疗法策略至关重要.
研究的目的:
- 开发基于R循环相关基因的骨肉瘤预后模型.
- 调查R环基因表达与OS中的瘤免疫微环境 (TME) 之间的关联.
- 确定影响OS进展的关键R-循环相关基因并验证它们的功能作用.
主要方法:
- 使用RNA测序 (RNA-seq) 数据构建一个R循环基因预测得分模型 (RGPSM).
- 分析RGPSM得分与TME特征之间的相关性.
- 使用单细胞RNA测序 (scRNA-seq) 来识别OS进展中的关键R循环基因,然后进行体外和体外实验验证.
- 研究PC4和SRSF1相互作用蛋白1 (PSIP1) 在R循环动态和DNA损伤中的作用.
主要成果:
- 高RGPSM得分与较差的预后,较低的Huvos等级和在骨肉瘤患者中更抑制的TME有关.
- 在高RGPSM得分的患者中观察到更高比例的恶性细胞.
- 确定PC4和SRSF1相互作用蛋白1 (PSIP1) 在生殖性OS细胞中表达高,与预后不佳有关.
- PSIP1的淘汰抑制了OS的进展,增加了R循环积累和DNA损伤,而PSIP1的过度表达促进了R循环分辨率.
结论:
- 开发的RGPSM是预测骨髓瘤患者结果的宝贵工具.
- 通过调节R循环积累和DNA损伤,PSIP1在骨髓瘤进展中发挥着关键作用.
- 针对PSIP1可能是骨髓瘤的潜在治疗策略.
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