Preface.- The molecular aspects of Tight junctions.- The distribution of tight junctions and junctional proteins in the body.- Methodologies in investigation tight junctions.- Vascular permeability and drug delivery.- Tight junctions, BBB and brain metastasis.- Tight junctions and bladder cancer metastasis.- Tight Junctions and colorectal cancer therapies.- Tight junctions in breast cancer.- Regulation of tight junctions for therapeutic advantages.- Overcoming tight junctional permeability in cerebral metastasis.- CL-5 and cancer metastasis.- Intracellular signalling in TJ and AJ.- ROCK and TJ.- Index.