Cetuximab

Cetuximab (C225) is a human IgG1 monoclonal antibody that inhibits epidermal growth factor receptor (EGFR), with a K_d of 0.201 nM for EGFR by SPR. Cetuximab has potent antitumor activity^[1]. IC50 & Target:ERBB1/EGFR/HER1 In Vitro:Cetuximab (C225) is a monoclonal antibody that inhibits epidermal growth factor receptor (EGFR), with a K_d of 0.201 nM for soluble EGFR by SPR. Cetuximab also exhibits a K_d of 0.147 nM for EGFR in fixed A431 cells by ELISA^[1].
Cetuximab (C225; 30 nM) time-dependently inhibits the proliferation of SCC-1, SCC-11B, SCC-38, and SCC-13Y cells after treatment for 8 d. Cetuximab (30 nM) causes G₀/G₁ arrest, induces apoptosis, and reduces Rb, p27^KIP1, Bcl-2, and Bax expression in SCC-13Y cells. Cetuximab (30 nM) also enhances radiosensitivity and increases radiation-induced apoptosis in SCC-13Y cells^[3]. In Vivo:Cetuximab (1 mg/injection) has effect on the tumour volume but the effect is more pronounced on UT-SCC-14 xenografts. In UT-SCC-14 xenografts, Cetuximab significantly reduces the expression of EGFR, pEGFR and Ki67. Cetuximab significantly decreases the expression in the MCT1 and GLUT1 cells but differences are more pronounced in UT-SCC-14 xenografts^[2].