Title:The Clinical Impact of Quantitative Cell-free DNA, KRAS, and BRAF Mutations on Response to Anti-EGFR Treatment in Patients with Metastatic Colorectal Cancer
Volume: 27
Issue: 7
Author(s): Reyhaneh Moradi-Marjaneh, Fereshteh Asgharzadeh, Elnaz Khordad and Mahdi Moradi Marjaneh*
Affiliation:
- UK Dementia Research Institute, Imperial College London, London,United Kingdom
Keywords:
Colorectal, cancer, cell-free DNA, KRAS, BRAF, EGFR.
Abstract: Colorectal cancer (CRC) is one of the most common leading causes of cancer death in the world. Although
EGFR inhibitors have established efficacy in metastatic colorectal cancer (mCRC), some patients do not
respond to this treatment. The EGFR inhibitors' failure and acquired resistance are partly due to KRAS and
BRAF mutations. Thus, prognostic biomarkers that help to select eligible patients are highly in demand. To improve
patient selection, assessment of mutational status in circulating cell free DNA (cfDNA), which possibly
represents the dynamicity of tumor genetic status better than tumor tissue, could be advantageous. This review
summarizes the current knowledge of the prognostic value of cfDNA in patients with mCRC treated with
EGFR inhibitors with emphasis on the clinical importance of identification of KRAS and BRAF mutations.