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Updated: Jul 18, 2025

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Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
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TP53功能增益突变调节了非HPV相关的口腔状细胞癌中的免疫抑制微环境
Yewen Shi1,2, Xiaoyong Ren2, Shaolong Cao3
1Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Journal for immunotherapy of cancer
|August 21, 2023
概括
在口腔状细胞癌 (OSCC) 中获得功能TP53突变通过改变瘤免疫微环境 (TIME) 来促进瘤免疫逃避. 这导致生存率下降,突出显示TP53在癌症进展中的作用.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 遗传学 遗传学是一种遗传学.
背景情况:
- TP53是固体癌症中最常发生突变的基因,显著影响癌症特征.
- 人体TP53突变在头癌中普遍存在,特别是口腔状细胞癌 (OSCC).
研究的目的:
- 调查TP53功能增益突变在塑造OSCC内的瘤免疫微环境 (TIME) 中的作用.
- 了解TP53突变如何影响口腔癌中的免疫细胞透和功能.
主要方法:
- 在免疫能力和免疫缺陷小鼠中利用突变p53R172H敲除的合成口腔瘤模型.
- 使用HTG EdgeSeq进行细胞因子和免疫细胞标记物的mRNA测序.
- 通过流细胞计,多重免疫光 (mIF) 和CIBERSORT分析在小鼠模型和人类OSCC样本上证实了这些发现.
主要成果:
- 突变p53R172H驱动细胞因子网络,阻碍细胞毒性CD8+T细胞的透,并促进调控性T细胞和M2巨的招募.
- TP53突变会影响瘤内的免疫细胞的空间分布.
- 突变TP53的瘤显示了PD-1表达T细胞的透,并对免疫疗法 (免疫检查点抑制剂和STING激动剂) 有反应.
结论:
- 在OSCC中获得功能的TP53突变积极调节TIME,以促进免疫逃避和促进瘤进展.
- 这些TP53突变的免疫调节作用有助于降低患者的存活率.
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