6ROLE OF ANGIOGENESIS – A REVIEWAngiogenesis is a biological process by which new capillaries are formed from preexisting vessels. It is essential in many physiological (embryo development, ovulation, and wound repair) and pathological conditions, such as diabetic retinopathy, tumors and psoriasis. Numerous inducers of angiogenesis have been identified, including members of the fibroblast growth factor (FGF) family, vascular permeability factor/vascular endoendothelial growth factor (VPF/VEGF), angiogenin, transforming growth factor alpha and beta (TGF-a and -b), platelet-derived growth factor (PDGF), plateletderived endothelial cell growth factor (PDECGF), tumor necrosis factor alpha (TNF-a), interleukins, chemokines, and angiopoietins (angs). This paper offers a role of angiogenesis with such as diabetic retinopathy, tumors and psoriasis.Sarganjune1@gmail.comReview212012Role of angiogenesis,Diabetic retinopathy,Tumors and PsoriasisA. Saravana Kumar,S. Kavimani,K.N. Jayaveera Research Scholar, Jawaharlal Nehru Technological University Anantapur, Andhra Pradesh, India- 515002., Professor & Head, Department of Pharmacology, Mother Theresa Post Graduate and Research Institute of Health Sciences, Puducherry - 605 006., Professor & Head, Department of Chemistry, Jawaharlal Nehru Engineering College, Jawaharlal Nehru Technological University, Anantapur, Andhra Pradesh, India- 515002.