低氧驱动的瘤 stromal 重塑和免疫抑制的微环境在 scirrhous HCC
Shuling Chen1,2,3, Changyi Liao4, Huanjing Hu1
1Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China.
Hepatology (Baltimore, Md.)
|September 19, 2023
概括
螺旋性肝细胞癌 (SHCC) 具有独特的分子特征,包括较少的基因组异质性和缺氧驱动的免疫抑制微环境. 胰岛素样生长因子2可以作为SHCC的诊断生物标志物.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 免疫学 免疫学 免疫学
背景情况:
- 螺纹性肝细胞癌 (SHCC) 是肝细胞癌 (HCC) 的一个独特的亚型.
- SHCC的特点是瘤微环境中的丰富的纤维状层.
- 尚不清楚SHCC的精确分子特征,这阻碍了向治疗的开发.
研究的目的:
- 阐明SHCC的基因组特征,转录基因组概况和结构性免疫微环境.
- 确定潜在的诊断生物标志物和SHCC的治疗点.
主要方法:
- 来自134名患者的单细胞RNA测序,全外体测序和散装RNA测序的综合分析.
- 多复合免疫光染色,流细胞计和功能实验用于验证.
- 对基因组异质性,转录基因组资料和免疫细胞种群的分析.
主要成果:
- 与通常的HCC相比,SHCC表现出较少的基因组异质性和独特的转录组概况.
- 胰岛素样生长因子2在SHCC上调,可以作为诊断生物标志物.
- SHCC具有显著的瘤 stromal 重塑,缺氧,和一个免疫抑制的微环境与功能障碍的T细胞和损伤的树突细胞功能.
结论:
- SHCC具有独特的基因组特征.
- 缺氧驱动瘤肌层重塑,并在SHCC中创造一个免疫抑制的微环境.
- 胰岛素样生长因子2和SPP1是参与SHCC病原和免疫逃避的关键分子.
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