Multiregion single-cell sequencing reveals the transcriptional landscape of the immune microenvironment of colorectal cancer

被引：71

作者：

Wang, Wei ^{[1
,3
,4
]}

Zhong, Yu ^{[1
,3
,4
]}

Zhuang, Zhenkun ^{[1
,3
,4
]}

Xie, Jiarui ^{[1
,3
,4
]}

Lu, Yueer ^{[1
]}

Huang, Chengzhi ^{[2
]}

Sun, Yan ^{[3
,4
]}

Wu, Liang ^{[3
,4
]}

Yin, Jianhua ^{[3
,4
]}

Yu, Hang ^{[1
]}

Jiang, Zhiqiang ^{[1
]}

Wang, Shanshan ^{[3
,4
]}

Wang, Chunqing ^{[3
,4
]}

Zhang, Yuanhang ^{[3
,4
]}

Huang, Yilin ^{[1
]}

Han, Chongyin ^{[1
]}

Zhong, Zhenggang ^{[1
]}

Hu, Jialin ^{[1
]}

Ouyang, Ying ^{[1
]}

Liu, Huisheng ^{[1
]}

Yu, Mengya ^{[2
]}

Wei, Xiaochan ^{[3
]}

Chen, Dandan ^{[3
]}

Huang, Lizhen ^{[1
]}

Hou, Yong ^{[3
,4
,5
]}

Lin, Zhanglin ^{[1
]}

Liu, Shiping ^{[3
,4
,5
,6
]}

Ling, Fei ^{[1
]}

Yao, Xueqing ^{[2
]}

机构：

[1] South China Univ Technol, Sch Biol & Biol Engn, Guangzhou 510006, Guangdong, Peoples R China

[2] South China Univ Technol, Sch Med, Guangdong Acad Med Sci, Dept Gen Surg,Guangdong Prov Peoples Hosp, Guangzhou 510080, Guangdong, Peoples R China

[3] BGI Shenzhen, Shenzhen 518083, Peoples R China

[4] BGI Shenzhen, China Natl GeneBank, Shenzhen, Peoples R China

[5] Shenzhen Key Lab Single Cell Omics, Shenzhen, Peoples R China

[6] Guangdong Acad Med Sci, Guangdong Prov Peoples Hosp, Guangdong Hong Kong Joint Lab Immunol & Genet Kid, Guangzhou, Guangdong, Peoples R China

来源：

CLINICAL AND TRANSLATIONAL MEDICINE | 2021年 / 11卷 / 01期

关键词：

INFILTRATING B-CELLS; CD8(+) T-CELLS; PROGNOSTIC IMPACT; PLASMA-CELLS; TRANSLOCATION GENE-1; HUMAN COLON; TUMOR; EXPRESSION; HETEROGENEITY; SPECIFICITY;

D O I：

10.1002/ctm2.253

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

The tumor microenvironment is a complex ecosystem formed by distinct and interacting cell populations, and its composition is related to cancer prognosis and response to clinical treatment. In this study, we have taken the advantage of two single-cell RNA sequencing technologies (Smart-seq2 and DNBelab C4) to generate an atlas of 15,115 immune and nonimmune cells from primary tumors and hepatic metastases of 18 colorectal cancer (CRC) patients. We observed extensive changes in the proportions and functional states of T cells and B cells in tumor tissues, compared to those of paired non-tumor tissues. Importantly, we found that B cells from early CRC tumor were identified to be pre-B like expressing tumor suppressors, whereas B cells from advanced CRC tumors tended to be developed into plasma cells. We also identified the association of IgA(+)IGLC2(+) plasma cells with poor CRC prognosis, and demonstrated a significant interaction between B-cell and myeloid-cell signaling, and found CCL8(+) cycling B cells/CCR5(+) T-cell interactions as a potential antitumoral mechanism in advanced CRC tumors. Our results provide deeper insights into the immune infiltration within CRC, and a new perspective for the future research in immunotherapies for CRC.

引用

页数：21

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