J&J / MatTek paper on EpiColon. Lots of tissue characterization and drug permeability data. In comparison to Caco-2 (data in the paper), EpiColon expresses functional drug transporters and can differentiate between low permeability drugs. Key words: EpiColon, COL-100-Beta, Caco-2 comparison, drug transport, drug absorption, TEER, gene expression, histology, FITC–dextran 4 kDa, FD4, FITC–dextra..