Longitudinal plasma proteome profiling reveals the diversity of biomarkers for diagnosis and cetuximab therapy response of colorectal cancer

Yan Li, Bing Wang, Wentao Yang, Fahan Ma, Jianling Zou, Kai Li, Subei Tan, Jinwen Feng, Yunzhi Wang, Zhaoyu Qin, Zhiyu Chen () and Chen Ding ()
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Yan Li: Fudan University
Bing Wang: Fudan University
Wentao Yang: Fudan University Shanghai Cancer Center
Fahan Ma: Fudan University
Jianling Zou: Fudan University Shanghai Cancer Center
Kai Li: Fudan University
Subei Tan: Fudan University
Jinwen Feng: Fudan University
Yunzhi Wang: Fudan University
Zhaoyu Qin: Fudan University
Zhiyu Chen: Fudan University Shanghai Cancer Center
Chen Ding: Fudan University

Nature Communications, 2024, vol. 15, issue 1, 1-23

Abstract: Abstract Cetuximab therapy is the major treatment for colorectal cancer (CRC), but drug resistance limits its effectiveness. Here, we perform longitudinal and deep proteomic profiling of 641 plasma samples originated from 147 CRC patients (CRCs) undergoing cetuximab therapy with multi-course treatment, and 90 healthy controls (HCs). COL12A1, THBS2, S100A8, and S100A9 are screened as potential proteins to distinguish CRCs from HCs both in plasma and tissue validation cohorts. We identify the potential biomarkers (RRAS2, MMP8, FBLN1, RPTOR, and IMPDH2) for the initial response prediction. In a longitudinal setting, we identify two clusters with distinct fluctuations and construct the model with high accuracy to predict the longitudinal response, further validated in the independent cohort. This study reveals the heterogeneity of different biomarkers for tumor diagnosis, the initial and longitudinal response prediction respectively in the first course and multi-course cetuximab treatment, may ultimately be useful in monitoring and intervention strategies for CRC.

Date: 2024
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DOI: 10.1038/s41467-024-44911-1

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