Abstract
Purpose: To investigate the correlation between connective tissue growth factor (CTGF) mRNA expression and immunohistochemical characteristics (expression of type I collagen and tenascin) of fibrovascular membranes of proliferative retinal diseases under in vivo conditions. Methods: CTGF mRNA expression was investigated using in situ hybridization. Expression of type I collagen and tenascin was detected by immunohistochemical staining. Results: CTGF mRNA is produced in transformed retinal pigment epithelial cells and appears also in fibroblast-like cells, which are embedded in epiretinal and subretinal membranes of proliferative retinal diseases as well as in surgically removed subretinal membranes. In all examined membranes, expression of human CTGF mRNA appears in concurrence with the expression of type I collagen and tenascin. Conclusions: The predominant expression of CTGF mRNA in the development of fibrovascular membranes of proliferative retinal diseases suggests a significant role of CTGF in the pathological course of these ocular disorders.
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