Abstract

The antiEGFR monoclonal antibodies cetuximab and panitumumab have been proven to be efficient in MCRC. The degree of EGFR expression (as confirmed by immunohistochemical analysis) did not correhte with the clinical response. In this review, we describe the current status of markers that might identify patients who are likely to benefit from treatment with cetuximab or panitumumab. These molecular markers include KRAS mutations, EGFR copy number, EGFR ligands (EGF, epiregulin), cyclin DI, IgG FcγR (FCGR2A-HI31R and FCGR3A-V158F), and nuclear factor-κB, that are crucial to avoid anti-EGFR treatment toxicity and reduce treatment cost. Key words: Antibodies, monoclonal; Receptor, epidermal growth factor, Tretment outcome; Forecasting

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