Circulating tumor DNA methylation in colorectal cancer: a meta-analysis

  • 0Department of Medical Oncology, the second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China.

Summary

This summary is machine-generated.

Circulating tumor DNA (ctDNA) methylation shows high accuracy for colorectal cancer (CRC) screening. Combining ctDNA methylation with carcinoembryonic antigen (CEA) further improves diagnostic performance for CRC.

Area Of Science

  • Oncology
  • Molecular Diagnostics
  • Biomarker Discovery

Background

  • Colorectal cancer (CRC) remains a significant global health challenge.
  • Early detection is crucial for improving patient outcomes and survival rates.
  • Circulating tumor DNA (ctDNA) methylation is emerging as a promising biomarker for cancer detection.

Purpose Of The Study

  • To systematically evaluate the diagnostic accuracy of ctDNA methylation for colorectal cancer (CRC).
  • To assess the performance of ctDNA methylation alone and in combination with other biomarkers.
  • To identify factors influencing the diagnostic utility of ctDNA methylation assays.

Main Methods

  • A comprehensive meta-analysis of published studies was conducted.
  • Data from 147 articles, including 15,133 CRC patients, were synthesized.
  • Pooled sensitivity, specificity, diagnostic odds ratio (DOR), and AUC were calculated.

Main Results

  • ctDNA methylation demonstrated a pooled sensitivity of 0.655, specificity of 0.902, and AUC of 0.8851.
  • Combining ctDNA methylation with carcinoembryonic antigen (CEA) improved AUC to 0.9269.
  • Multi-gene panels and digital PCR assays showed superior diagnostic value.

Conclusions

  • ctDNA methylation exhibits significant diagnostic accuracy for early CRC detection and screening.
  • Combination with CEA enhances diagnostic performance, suggesting clinical utility.
  • Further research is needed to address remaining questions before widespread clinical application.