Contents. List of Contributors. Preface (S.K. Malhotra). conservation of Genome and Gene Structure from fishes to Mammals (R.B. Walter and D.C. Morizot). The Molecular Composition of the Tight Junction (A.G. Howarth and B.R. Stevenson). The Gap Junction (M.V. Singh and S. K. Malhotra). Classical and Desmosomal Cadherins (J.E. Collins). Cytoskeleton and Cell Adhesion Molecules in Cell Shape, Growth Regulation, and Neoplasia (R. Rajaraman). The Cytoskeleton of the Retinal Pigment Epithelium (D.M. Garcia and J.R. Koke). Lung Inflammation, Fibrosis, and the Concept of Fibroblast Heterogeneity (R.K. Barth, C.M. Baecher-Allan, A. Linares, V.N. Suchkova, G. Sukhikh, G. Grchko, Y. Blidchenko, E.A. Kogan, and R.P. Phipps). Fibrogenic and Anti-Fibrogenic Factors in Wound Repair (A. Ghahary, R. Panny, and E.E. Tredget). Antimicrobial Mechanisms of Activated Macrophages and their Induction by Cytokines (N.F. Neumann and M. Belosevic).