治疗诱导的衰老癌细胞表现出补充激活和增加补充调节蛋白表达
Anas Ha Abu-Humaidan1, Mohammad A Ismail2,3, Fatima M Ahmad1,4
1Department of Pathology, Microbiology, and Forensic Medicine, School of Medicine, The University of Jordan, Amman, Jordan.
Immunology and cell biology
|January 24, 2024
概括
化疗在癌细胞中触发了治疗诱导的衰老 (TIS),激活了补充系统. 这项研究揭示了补体激活和C3表达增加在衰老的瘤细胞,影响瘤微环境.
科学领域:
- 癌症生物学 癌症生物学
- 免疫学 免疫学 免疫学
- 细胞衰老 细胞衰老
背景情况:
- 治疗诱导的衰老 (TIS) 是一种关键的化疗反应,可能导致免疫逃避.
- 补体系统在抗癌免疫力中的作用已知,但其与衰老瘤细胞的相互作用尚不清楚.
研究的目的:
- 研究补充系统在对治疗诱导衰老 (TIS) 癌细胞的免疫反应中的作用.
- 探索TIS癌细胞系和患者样本中的补充激活和蛋白质表达.
主要方法:
- 在肺癌,乳腺癌和胰腺癌细胞系中使用埃托波或多克索鲁比诱导的TIS.
- 评估了TIS标记物 (形态,β-银酸酶,p21Cip1,层状B1).
- 研究了补体激活 (C5b-9沉积),蛋白质表达 (CD59,H因子,C3) 和使用显微镜,qPCR,ELISA和in silico分析的分泌.
主要成果:
- 在衰老细胞上,TIS诱导终端补充通路激活 (C5b-9沉积).
- 观察到补充调节蛋白CD59和H因子的升级.
- 在A549细胞中发生了增加的C3表达和分泌到介质中;在患者样本中也发现了升高的C3.
结论:
- 治疗诱导的衰老触发了补充激活,并提高了补充调节蛋白的调节.
- 衰老细胞中C3表达的增加表明补充剂在调节瘤微环境后衰老诱导中的作用.
- 这些发现突出了补充剂对化学疗法诱导的细胞衰老反应的参与.
关键词:
C5b-9b-C5b-9b-C5b-9b-C5b-C5b-C5b-9b-C5b-C5b-C5b-C5b-C5b-C5b-9b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C9 C5b-9b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C9b-C5b-C5b-C5b-C5b-C5b-C5b-C9b-C5b-C5b-C5b-C9b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C9b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C5b-C癌症 癌症 癌症 癌症 癌症化学疗法 化疗 化疗免疫编辑 免疫编辑衰老是一种老化.相关概念视频
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