Cartilage Oligomeric Matrix Protein, COMP may be a Better Prognostic Marker Than CEACAM5 and Correlates With Colon Cancer Molecular Subtypes, Tumor Aggressiveness and Overall Survival

Emily Wusterbarth, Yuliang Chen, Hunter Jecius, Erika Krall, Raymond B. Runyan, Ritu Pandey, Valentine Nfonsam

Research output: Contribution to journalArticlepeer-review

Abstract

Background: New tumor biomarkers are needed to improve the management of Colon cancer (CC), the second leading cause of cancer-related deaths in the United States. Carcinoembryonic Antigen (CEA), the translated protein of carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) gene, is used as a biomarker for CC. Cartilage Oligomeric Matrix Protein (COMP) is overexpressed in CC compared to normal colon tissues. This study aims to evaluate the expression of COMP by disease stage, consensus molecular subtype (CMS), its impact on disease outcomes, and comparison to CEACAM5. Materials and methods: RNA-seq data from 456 CC The Cancer Genome Atlas samples and 41 matching control samples were analyzed for COMP expression and CEACAM5 expression. We stratified tumor samples by stage (I-IV), subtype (CMS1-CMS4), tumor location, and Kirsten RAt Sarcoma (KRAS) mutant status and three quartiles were established based on COMP expression. Kaplan Meier survival outcomes were evaluated. Results: COMP expression was significantly higher in tumor samples, with elevation of expression occurring in stage I and significantly increasing in stage IV. Increased COMP expression occurs in CMS4 with relatively low expression in CMS3. No significant expression difference was attributed to tumor location and KRAS mutant status. Compared to CEACAM5, COMP was a stronger molecular marker across stages and subtypes. CMS4 was associated with the high COMP expression, and higher levels of COMP were associated with poorer overall survival, disease-specific survival, and tumor progression-free intervals. CMS2 and 3 were associated with low expression and better survival. Conclusion: COMP is a potential molecular biomarker for CC and may be superior to CEA as an indicator of CC.

Original languageEnglish (US)
Pages (from-to)169-177
Number of pages9
JournalJournal of Surgical Research
Volume270
DOIs
StatePublished - Feb 2022

Keywords

  • CEACAM5
  • COMP
  • Cartilage oligomeric matrix protein
  • Colon cancer
  • Consensus molecular subtypes
  • Survival

ASJC Scopus subject areas

  • Surgery

Fingerprint

Dive into the research topics of 'Cartilage Oligomeric Matrix Protein, COMP may be a Better Prognostic Marker Than CEACAM5 and Correlates With Colon Cancer Molecular Subtypes, Tumor Aggressiveness and Overall Survival'. Together they form a unique fingerprint.

Cite this