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CYR61 (Cysteine-rich angiogenic inducer 61) is a 381 amino acid secreted protein. It promotes cell proliferation, chemotaxis, angiogenesis extracellular matrix formation and cell adhesion and this appears to make CYR61 play a role in wound healing in skin fibroblasts. CYR61 expression is induced by growth factors. It interacts with several integrins and with heparan sulfate proteoglycan. CYR61 may play a role in T-cell non-Hodgkin's disease, breast cancer, epithelial neoplasia, hepatocellular carcinoma, ischemia, gastric cancer, endometriosis, prostate carcinoma, prostatitis, prostate cancer, breast carcinoma, cardiomyopathy, melanoma and adenocarcinoma.