Abstract
Vasoproliferative activity has been demonstrated in extracts of retinas from human, bovine, and feline sources. These retinal extracts are capable of stimulating (a) proliferation and thymidine uptake of bovine vascular endothelial cells in culture and (b) neovascularization on the chick chorioallantoic membrane. Extracts of skeletal muscle, cardiac muscle, and liver lack similar stimulatory activity. The activity is nondialyzable, stable at 56 degrees C, and inactivated at 100 degrees C. Retinal extracts stimulate the proliferation of corneal fibroblasts but have no effect on the proliferation of vascular smooth muscle cells. Indirect evidence suggests the liberation of a vasoproliferative factor from retina in several ocular disorders. The data in this report represent the first direct demonstration of vasoproliferative activity from mammalian retina.
MeSH Terms
Animals
Cats
Cattle
Cell Division/drug effects
Chick Embryo
Cornea/cytology
Endothelium/drug effects,metabolism
Extraembryonic Membranes/blood supply,drug effects
Female
Fibroblasts/drug effects
Humans
Muscle, Smooth/drug effects
Neovascularization, Pathologic
Retina/analysis
Thymidine/metabolism
Tissue Extracts/pharmacology
Chemicals
Tissue Extracts
Thymidine
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
Glaser B M
D'Amore P A
Michels R G
Patz A
Fenselau A
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