Evolution of the Transporting Epithelium Phenotype -- Occludin, a Constituent of Tight Junctions -- Tight Junction Channels -- JAM Family Proteins -- Cingulin, a Cytoskeleton-Associated Protein of the Tight Junction -- ZO Proteins and Tight Junction Assembly -- TJ Proteins That Make Round Trips to the Nucleus -- Tight Junctions and the Regulation of Epithelial Cell Proliferation and Gene Expression -- Tight Junction Proteins and Cancer -- Regulation of Paracellular Transport across Tight Junctions by the Actin Cytoskeleton -- Regulation of Tight Junctions??Functional Integrity -- Tight Junctions during Development -- Tight Junctions and the Blood-Brain Barrier -- Tight Junctions in CNS Myelin -- Tight Junction Modulation and Its Relationship to Drug Delivery.