sentence: The most highly correlated genes were implicated in the following epithelial functions : interactions at tight junctions ( CLDN7 , CLDN4 , CLDN3 , MARVELD3 , MARVELD2 , TJP3 , CGN , CRB3 , LLGL2 , EPCAM , LNX1 ) ; interactions at adherens junctions ( CDH1 , ADAP1 , CAMSAP3 ) ; interactions at desmosomes ( PPL , PKP3 , JUP ) ; transcription regulation of cell-cell junction complexes ( GRHL1 and 2 ) ; epithelial RNA splicing regulators ( ESRP1 and 2 ) ; epithelial vesicle traffic ( RAB25 , EPN3 , GRHL2 , EHF , ADAP1 , MYO5B ) ; epithelial Ca ( +2 ) signaling ( ATP2C2 , S100A14 , BSPRY ) ; terminal differentiation of epithelial cells ( OVOL1 and 2 , ST14 , PRSS8 , SPINT1 and 2 ) ; maintenance of apico-basal polarity ( RAB25 , LLGL2 , EPN3 ) .