对于食道状细胞癌的第一线化疗或放射治疗的分层反应中的基因组,转录组和T细胞受体概况
Xiaqin Zhang1, Jianhong Lian2, Fukun Chen3
1Department of Radiotherapy, Shanxi Province Cancer Hospital/Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi, China.
Frontiers in oncology
|January 21, 2025
概括
这项研究探讨了在放射化疗期间食道状细胞癌 (ESCC) 中的T细胞受体 (TCR) 动态. 多omics分析揭示了TCR,瘤基因组学和治疗反应之间的关联,为临床实践提供了见解.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 免疫学 免疫学 免疫学
背景情况:
- 食道状细胞癌 (ESCC) 是一个主要的全球健康问题,局部晚期需要密集治疗.
- 了解ESCC的分子格局对于改善患者的治疗结果至关重要.
研究的目的:
- 研究本地先进ESCC的基因组和转录组特征.
- 阐明T细胞受体 (TCR) 动态及其与放射化疗期间的基因组和转录基因组资料的关联.
- 为ESCC提供有关瘤异质性,微环境和治疗反应的见解.
主要方法:
- 对23名局部晚期ESCC患者进行了多组组学分析 (基因组学和转录组学).
- 评估了瘤突变负担 (TMB),途径分析,免疫透,染色体拷贝数变异 (CNV) 和TCR谱的多样性.
- 纵向采样 (治疗前,治疗期间,治疗后) 允许跟踪分子变化.
主要成果:
- 在ESCC中普遍存在的途径包括TP53,RTK/RAS和NOTCH.
- 免疫热瘤表现出更高的免疫透率.
- 在低无进展生存期 (PFS) 组中观察到更高的中位数TMB.
- 克隆性得分增加,而香农指数和富度从治疗前到治疗后下降.
- 中性细胞与淋巴细胞比率 (NLR) 和StromalScore显示了与CNV负担和免疫微环境相关的独特模式.
结论:
- 多omics分析揭示了ESCC放射化疗期间的TCR动态及其基因组/转录基因组关联.
- 研究结果为ESCC异质性,瘤微环境和治疗反应提供了宝贵的见解.
- 识别与治疗结果相关的潜在生物标志物可以为临床实践提供信息.
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Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
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