Given that i) cholangiocytes express the ERBB family members EGFR and ERBB2, and ii) previous reports demonstrated LPS-induced EGFR phosphorylation in cholangiocarcinoma [17,18,25], we performed western blots for phospho-EGFR or phospho-ERBB2 from 0–60 minutes post-LPS treatment. The gene discussed is ERBB2; the disease is cholangiocarcinoma.