ITGB1 and infantile convulsions and choreoathetosis: To determine whether the collagen type I-specific integrin expression pattern in iCCA cell lines recapitulates that found in the iCCA tumors, gene expression analysis of four α subunits (ITGA1, ITGA2, ITGA10, and ITGA11) and one β subunit (ITGB1) were assessed in four iCCA cell lines (HuCCA-126, HuCCT-127, KKK-06828 and KKK-13128) and compared with that in the non-cancerous, cholangiocyte cell line, MMNK-129.