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解析结直肠癌上皮-间质转化的时空生物标志物:免疫抑制细胞的关键作用。

Unraveling temporal and spatial biomarkers of epithelial-mesenchymal transition in colorectal cancer: insights into the crucial role of immunosuppressive cells.

机构信息

Department of Colorectal Surgery, Harbin Medical University Cancer Hospital, Harbin, 150086, China.

School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150080, China.

出版信息

J Transl Med. 2023 Nov 8;21(1):794. doi: 10.1186/s12967-023-04600-x.


DOI:10.1186/s12967-023-04600-x
PMID:37940972
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10633927/
Abstract

The occurrence and progression of tumors can be established through a complex interplay among tumor cells undergoing epithelial-mesenchymal transition (EMT), invasive factors and immune cells. In this study, we employed single-cell RNA sequencing (scRNA-seq) and spatially resolved transcriptomics (ST) to evaluate the pseudotime trajectory and spatial interactive relationship between EMT-invasive malignant tumors and immune cells in primary colorectal cancer (CRC) tissues at different stages (stage I/II and stage III with tumor deposit). Our research characterized the spatiotemporal relationship among different invasive tumor programs by constructing pseudotime endpoint-EMT-invasion tumor programs (EMTPs) located at the edge of ST, utilizing evolution trajectory analysis integrated with EMT-invasion genes. Strikingly, the invasive and expansive process of tumors undergoes remarkable spatial reprogramming of regulatory and immunosuppressive cells, such as myeloid-derived suppressor cells (MDSCs), tumor-associated macrophages (TAMs), regulatory T cells (Treg), and exhausted T cells (Tex). These EMTP-adjacent cell are linked to EMT-related invasion genes, especially the C-X-C motif ligand 1 (CXCL1) and CXCL8 genes that are important for CRC prognosis. Interestingly, the EMTPs in stage I mainly produce an inflammatory margin invasive niche, while the EMTPs in stage III tissues likely produce a hypoxic pre-invasive niche. Our data demonstrate the crucial role of regulatory and immunosuppressive cells in tumor formation and progression of CRC. This study provides a framework to delineate the spatiotemporal invasive niche in CRC samples.

摘要

肿瘤的发生和发展可以通过经历上皮-间充质转化 (EMT) 的肿瘤细胞、侵袭因子和免疫细胞之间的复杂相互作用来建立。在这项研究中,我们采用单细胞 RNA 测序 (scRNA-seq) 和空间分辨转录组学 (ST) 来评估 EMT-侵袭性恶性肿瘤和不同阶段(I/II 期和有肿瘤沉积的 III 期)原发性结直肠癌 (CRC) 组织中免疫细胞之间的伪时间轨迹和空间相互作用关系。我们通过构建位于 ST 边缘的伪时间终点-EMT-侵袭性肿瘤程序 (EMTP),利用进化轨迹分析与 EMT-侵袭性基因相结合,对不同侵袭性肿瘤程序的时空关系进行了特征描述。引人注目的是,肿瘤的侵袭和扩张过程经历了调节性和免疫抑制性细胞(如髓系来源的抑制细胞 (MDSCs)、肿瘤相关巨噬细胞 (TAMs)、调节性 T 细胞 (Treg) 和耗竭性 T 细胞 (Tex))的显著空间重编程。这些 EMTP 相邻细胞与 EMT 相关的侵袭基因相关,特别是对 CRC 预后很重要的 C-X-C 基序配体 1 (CXCL1) 和 CXCL8 基因。有趣的是,I 期的 EMTP 主要产生炎症性边缘侵袭性生态位,而 III 期组织中的 EMTP 可能产生缺氧前侵袭性生态位。我们的数据表明调节性和免疫抑制性细胞在 CRC 的形成和发展中起着关键作用。本研究为描绘 CRC 样本中的时空侵袭生态位提供了一个框架。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/02b2c7366243/12967_2023_4600_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/915a138f9fbb/12967_2023_4600_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/68c8bd4da56b/12967_2023_4600_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/7726075c3d79/12967_2023_4600_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/2561e501c760/12967_2023_4600_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/02b2c7366243/12967_2023_4600_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/915a138f9fbb/12967_2023_4600_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/68c8bd4da56b/12967_2023_4600_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/7726075c3d79/12967_2023_4600_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/2561e501c760/12967_2023_4600_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bb7/10633927/02b2c7366243/12967_2023_4600_Fig5_HTML.jpg

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[6]
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本文引用的文献

[1]
The Relation Between Serum-based Systemic Inflammatory Biomarkers and Locoregional Lymph Node Metastasis in Clinical Stages I to II Right-sided Colon Cancers: The Role of Platelet-to-Lymphocyte Ratio.

Surg Laparosc Endosc Percutan Tech. 2023-12-1

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TNFR1 and TNFR2, Which Link NF-κB Activation, Drive Lung Cancer Progression, Cell Dedifferentiation, and Metastasis.

Cancers (Basel). 2023-8-28

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Nat Commun. 2023-9-4

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