癌症免疫发育景观的多细胞和单细胞特征
Qiuxia Wei1, Ruizhi Chen1,2,3, Xue He4
1Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, 100191, China.
Scientific data
|July 7, 2024
概括
细胞衰老 (CS) 与癌症进展和患者预后有关. 一个新的衰老特征预测了更糟糕的结果,更长的端粒和对治疗的反应,为癌症演变提供了洞察力.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 基因组学就是基因组学.
背景情况:
- 细胞衰老 (CS) 与瘤进展有关,但其与癌症的遗传关联,特别是与端粒长度和免疫细胞进化有关的遗传关联,仍未得到充分研究.
- 现有的研究还没有完全阐明癌症衰老特征与端粒长度之间的关系,也没有完全阐明恶性和免疫细胞在CS水平上的进化动态.
研究的目的:
- 定义细胞衰老 (CS) 相关的特征,并研究其与临床病理特征,免疫透和人类癌症治疗反应的关系.
- 用单细胞分析在CS层面探索恶性和免疫细胞的进化趋势.
- 开发和验证基于CS签名的癌症存活率预测模型.
主要方法:
- 基于CS相关基因的"衰老特征"的开发.
- 衰老特征与患者预后,年龄,基因组不稳定性,端粒长度和免疫细胞透 (淋巴细胞,Treg细胞,MDSCs) 的相关性分析.
- 单细胞RNA测序分析,以检查癌症和免疫细胞的进化趋势.
- 对免疫检查点抑制剂和向疗法 (MEK1/2,ERK1/2,BCL-2抑制剂) 的反应预测.
- 开发癌症存活率的CS预测模型和在线申请门户.
主要成果:
- 更高的衰老特征与更糟糕的预后,更老的患者年龄,增加的基因组不稳定性和更长的端粒有关.
- 增高的衰老特征与增加的淋巴细胞透和更高水平的Treg细胞和MDSCs等前瘤免疫细胞相关.
- 衰老特征有效预测了患者对免疫检查点抑制剂治疗的反应,以及对MEK1/2,ERK1/2和BCL-2家族抑制剂的敏感性.
- 单细胞分析显示,在CS层面,恶性和免疫细胞之间存在着一致的进化趋势.
- 确定了MAPK信号通路和亡过程是CS的关键参与者.
结论:
- 定义的衰老特征在人类癌症中作为一个强大的预后生物标志物.
- 衰老特征为免疫疗法和向治疗反应提供了预测价值.
- 了解细胞衰老的动态,可以了解癌症的演变和潜在的治疗策略.
- 一个新的CS预测模型和在线工具可用于临床应用.
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