同时存在的ARID1A-PIK3CA突变与光线乳腺癌的免疫相关途径有关
Liat Anabel Sinberger1, Tamar Zahavi1, Amir Sonnenblick2,3
1Department of Molecular Biology, Ariel University, Ariel, Israel.
Scientific reports
|November 28, 2023
概括
在光线乳腺癌中同时发生的ARID1A和PIK3CA突变与免疫路径的改变有关. 这表明,在这些患者中,有可能预测免疫疗法反应.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
背景情况:
- 激活PIK3CA突变发生在高达40%的乳腺癌 (BC) 患者中.
- PIK3CA突变通常与其他遗传突变同时发生,具有不同的影响.
- 在光线BC中ARID1A和PIK3CA共同突变的特定影响仍未得到充分研究.
研究的目的:
- 为了表征具有同时发生ARID1A和PIK3CA突变的光线乳腺癌.
- 为了确定这些共同突变对信号通路和免疫细胞组成的影响.
- 探索这些突变作为免疫疗法反应的预测因子的潜力.
主要方法:
- 来自TCGA和METABRIC数据集的2609个原发性乳腺癌样本的分析.
- 根据瘤亚型和PIK3CA/ARID1A突变状态对样本进行分类.
- 差异基因表达和权重基因相关性网络分析 (WGCNA) 以确定受影响的分子通路.
主要成果:
- 有证据表明,在具有ARID1A和PIK3CA突变的光瘤中,免疫相关途径的参与.
- 在这些瘤中识别出一种独特的瘤透免疫细胞组成.
- 他们发现了七个关键的枢纽基因 (CTLA4,PRF1,LCK,CD3E,CD247,ZAP70,LCP2),与免疫路径相关.
结论:
- ARID1A和PIK3CA突变的同时发生会影响免疫系统功能,可能有助于瘤的存活.
- 这种特定的突变特征可以作为在光线乳腺癌中免疫治疗反应的预测生物标志物.
- 进一步的验证可以指导为这一患者亚组开发新的免疫疗法策略.
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