Oropharyngeal cancer (OPC) is the world's sixth most common cancer and in many cases is associated with infection with human papillomavirus (HPV) type 16. Antibodies (Abs) to HPV16 viral antigens are potential diagnostic biomarkers of HPV-associated OPC (HPV OPC). A custom multiplexed bead array assay was used to detect Abs to HPV16 antigens E1, CE2, NE2, E4, E5, E6, E7, L1, and L2. Following extensive optimization of the assay, these genes were expressed as GST-fusion proteins and captured onto anti-GST magnetic beads.
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