Single-cell RNA sequencing reveals immune cell dysfunction in the peripheral blood of patients with highly aggressive gastric cancer

Rui Ma , Xuemeng Zhou , Xiaohui Zhai , Chuyue Wang , Rong Hu , You Chen , Liyang Shi , Xing Fang , Yuan Liao , Lifeng Ma , Mengmeng Jiang , Junqing Wu , Renying Wang , Jiao Chen , Taiyuan Cao , Ge Du , Yingying Zhao , Weili Wu , Haide Chen , Shanshan Li , Qizhou Lian , Guoji Guo , Jian Xiao , Andrew P. Hutchins , Ping Yuan

Cell Proliferation ›› 2024, Vol. 57 ›› Issue (5) : e13591

PDF
Cell Proliferation ›› 2024, Vol. 57 ›› Issue (5) : e13591 DOI: 10.1111/cpr.13591
ORIGINAL ARTICLE

Single-cell RNA sequencing reveals immune cell dysfunction in the peripheral blood of patients with highly aggressive gastric cancer

Author information +
History +
PDF

Abstract

Highly aggressive gastric cancer (HAGC) is a gastric cancer characterized by bone marrow metastasis and disseminated intravascular coagulation (DIC). Information about the disease is limited. Here we employed single-cell RNA sequencing to investigate peripheral blood mononuclear cells (PBMCs), aiming to unravel the immune response of patients toward HAGC. PBMCs from seven HAGC patients, six normal advanced gastric cancer (NAGC) patients, and five healthy individuals were analysed by single-cell RNA sequencing. The expression of genes of interest was validated by bulk RNA-sequencing and ELISA. We found a massive expansion of neutrophils in PBMCs of HAGC. These neutrophils are activated, but immature. Besides, mononuclear phagocytes exhibited an M2-like signature and T cells were suppressed and reduced in number. Analysis of cell-cell crosstalk revealed that several signalling pathways involved in neutrophil to T-cell suppression including APP-CD74, MIF-(CD74+CXCR2), and MIF-(CD74+CD44) pathways were increased in HAGC. NETosis-associated genes S100A8 and S100A9 as well as VEGF, PDGF, FGF, and NOTCH signalling that contribute to DIC development were upregulated in HAGC too. This study reveals significant changes in the distribution and interactions of the PBMC subsets and provides valuable insight into the immune response in patients with HAGC. S100A8 and S100A9 are highly expressed in HAGC neutrophils, suggesting their potential to be used as novel diagnostic and therapeutic targets for HAGC.

Cite this article

Download citation ▾
Rui Ma, Xuemeng Zhou, Xiaohui Zhai, Chuyue Wang, Rong Hu, You Chen, Liyang Shi, Xing Fang, Yuan Liao, Lifeng Ma, Mengmeng Jiang, Junqing Wu, Renying Wang, Jiao Chen, Taiyuan Cao, Ge Du, Yingying Zhao, Weili Wu, Haide Chen, Shanshan Li, Qizhou Lian, Guoji Guo, Jian Xiao, Andrew P. Hutchins, Ping Yuan. Single-cell RNA sequencing reveals immune cell dysfunction in the peripheral blood of patients with highly aggressive gastric cancer. Cell Proliferation, 2024, 57(5): e13591 DOI:10.1111/cpr.13591

登录浏览全文

4963

注册一个新账户 忘记密码

References

RIGHTS & PERMISSIONS

2024 The Authors. Cell Proliferation published by Beijing Institute for Stem Cell and Regenerative Medicine and John Wiley & Sons Ltd.

AI Summary AI Mindmap
PDF

266

Accesses

0

Citation

Detail

Sections
Recommended

AI思维导图

/