EGFR and colorectal carcinoma: Protein biomarkers allow detecting CRC (MST1, serpin family, SEPT 9, leucine-rich alpha-2-glycoprotein 1, EGFR and inter-alpha-trypsin inhibitor heavy-chain family member 4) [133,136], staging existing cancer [137] and predict response for specific treatment (pEGFR for cetuximab response and PCBP1 and Cdk5 for oxaliplatin resistance) [133].