The Proteomic Landscape of Monocytes in Response to Colorectal Cancer Cells

Overview

Journal J Proteome Res

Publisher American Chemical Society

Specialty Biochemistry

Date 2024 Aug 6

PMID 39106312

Authors

Yiran Wang

Luyao Zhang

Jing Xu

Jie Ma

Affiliations

Soon will be listed here.

Abstract

Colorectal cancer (CRC) involves a complex interaction between tumor cells and immune cells, notably monocytes, leading to immunosuppression. This study explored these interactions using in vitro coculture systems of THP-1 cells and CRC cell lines, employing quantitative proteomics to analyze protein changes in monocytes. Multiple analytical methods were utilized to delineate the altered proteomic landscape, identify key proteins, and their associated functional pathways for comprehensive data analysis. Differentially expressed proteins (DEPs) were selected and validated by cross-referencing them with publicly available TCGA and GEO data sets to explore their potential clinical significance. Our analysis identified 161 up-regulated and 130 down-regulated DEPs. The enrichment results revealed impairments in adhesion and innate immune functions in monocytes, potentially facilitating cancer progression. The down-regulation of FN1, THSB1, and JUN may contribute to these impairments. Furthermore, the overexpression of ADAMTSL4, PRAM1, GPNMB, and NPC2 on monocytes was associated with unfavorable prognostic outcomes in CRC patients, suggesting potential biomarkers or therapeutic targets. This study illustrated the proteomic landscape of monocytes in response to CRC cells, providing clues for future investigations of the crosstalk between cancer cells and monocytes within the tumor microenvironment.

Citing Articles

Deciphering Colorectal Cancer-Hepatocyte Interactions: A Multiomics Platform for Interrogation of Metabolic Crosstalk in the Liver-Tumor Microenvironment.

Nelson A, Reese L, Rono E, Queathem E, Qiu Y, McCluskey B Int J Mol Sci. 2025; 26(5).

PMID: 40076609 PMC: 11900982. DOI: 10.3390/ijms26051976.

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