Tp53决定了M1/M2瘤相关的巨细胞和M1驱动的瘤杀伤作用的空间动态
Yi-Jing Hsiao1,2, Min-Shu Hsieh3, Gee-Chen Chang4,5,6,7,8
1Department of Clinical and Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan.
Cell death & disease
|January 22, 2025
概括
与瘤相关的巨细胞 (TAMs) 在肺癌中发挥着空间作用. 野生型TP53状态影响M1/M2TAM分布,并预测更好的生存率,特别是M1巨主导和免疫治疗.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
背景情况:
- 肺腺癌中M1和M2瘤相关巨细胞 (M1/M2 TAMs) 的空间分布和功能尚未完全理解.
- EGFR和TP53是肺腺癌中常见的突变,可能会影响瘤微环境.
研究的目的:
- 研究M1/M2TAMs的空间特征和密度,与肺腺癌中的EGFR和TP53突变状态相关.
- 阐明M1 TAMs在野生型TP53 (wtp53) 肺腺癌中的功能作用及其对患者生存和治疗反应的影响.
主要方法:
- 用下一代测序和免疫组织化学分析了117种肺腺癌的突变状态和M1/M2TAM密度.
- 在体外研究中,研究了M1巨受条件介质 (M1CM) 对wtp53肺癌细胞的影响,包括诱导亡和信号通路激活 (JAK/STAT/p53).
- 在体内实验中,以p53-依赖的方式评估了M1 CM和多酸:多酸 (多I:C) 的抗瘤疗效.
主要成果:
- 流体M1TAM与疾病进展和吸烟史相关.
- 岛屿M1/M2TAM在wtp53瘤中普遍存在,其分布与wtp53状态有关.
- 岛屿M1 TAMs和M1签名的占主导地位与wtp53肺腺癌患者的生存率改善有关.
- 通过干扰素介导的JAK/STAT/p53信号传递,M1 CM诱导了wtp53细胞的亡,抑制了瘤发生.
- 更高的M1签名预测了WTP53黑色素瘤对抗PD1治疗的更好的反应.
结论:
- TP53状态对肺腺癌中M1/M2TAMs的空间分布和抗瘤活性进行了关键调节.
- M1 TAMs的抗瘤作用取决于p53状态,突出显示了一种涉及干扰素-JAK/STAT-p53信号传递的机制.
- p53伴随诊断可以指导M1导向治疗,特别是对于wtp53患者,可能提高免疫疗法的疗效.
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