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科学家绘制出肿瘤浸润T细胞的泛肿瘤单细胞图谱
作者:小柯机器人 发布时间:2021/12/19 23:54:31

2021年12月17日出版的《科学》杂志发表了北京大学张泽民等研究人员的成果。该研究绘制出肿瘤浸润T细胞的泛肿瘤单细胞图谱。

研究人员为21种癌症类型的316名捐赠者建立了一个单细胞RNA测序的泛癌症T细胞图谱,并揭示了不同的T细胞组成模式。研究人员发现了CD8+T细胞耗竭的多种状态转换路径,以及这些路径在不同肿瘤类型中的偏好。某些T细胞群显示出与患者属性(如突变负担)的特定相关性,揭示了肿瘤微环境的可能决定因素。仅仅是肿瘤内的T细胞组成就可以将癌症患者划分为具有临床特征特异性的群体,为T细胞免疫和针对T细胞的精确免疫疗法提供了新的见解。
 
据悉,T细胞在癌症免疫治疗中发挥着核心作用,但人们缺乏对不同癌症类型的肿瘤浸润性T细胞的异质性和动态性的系统比较。
 
附:英文原文

Title: Pan-cancer single-cell landscape of tumor-infiltrating T cells

Author: Liangtao Zheng, Shishang Qin, Wen Si, Anqiang Wang, Baocai Xing, Ranran Gao, Xianwen Ren, Li Wang, Xiaojiang Wu, Ji Zhang, Nan Wu, Ning Zhang, Hong Zheng, Hanqiang Ouyang, Keyuan Chen, Zhaode Bu, Xueda Hu, Jiafu Ji, Zemin Zhang

Issue&Volume: 2021-12-17

Abstract: T cells play a central role in cancer immunotherapy, but we lack systematic comparison of the heterogeneity and dynamics of tumor-infiltrating T cells across cancer types. We built a single-cell RNA-sequencing pan-cancer atlas of T cells for 316 donors across 21 cancer types and revealed distinct T cell composition patterns. We found multiple state-transition paths in the exhaustion of CD8+ T cells and the preference of those paths among different tumor types. Certain T cell populations showed specific correlation with patient properties such as mutation burden, shedding light on the possible determinants of the tumor microenvironment. T cell compositions within tumors alone could classify cancer patients into groups with clinical trait specificity, providing new insights into T cell immunity and precision immunotherapy targeting T cells.

DOI: abe6474

Source: https://www.science.org/doi/10.1126/science.abe6474

 

期刊信息
Science:《科学》,创刊于1880年。隶属于美国科学促进会,最新IF:41.037