RRC ID 42220
Author Kobayashi S, Shinohara H, Tsuneki H, Nagai R, Horiuchi S.
Title N(epsilon)-(carboxymethyl)lysine proliferated CD34(+) cells from rat choroidal explant in culture.
Journal Biol Pharm Bull
Abstract Action of N(epsilon)-(carboxymethyl)lysine-human serum albumin (CML-HSA) on neovascularization was investigated in cultured rat choroidal explant. Choroidal explants of normal male Wistar rats were cultured in fibrin gel with Dulbecco's modified Eagle medium containing fetal bovine serum in the presence or absence of CML-HSA. Migrated cells were budded from 2nd day in culture and developed from cultured choroidal explants in a time-dependent manner. Budded and developed cells from the choroidal explant had a feature of fibroblasts, which had attenuated long cytoplasmic processes, long ellipsoid nuclei and numerous membrane-bound polymorphic vesicles. Immunostaining of the attenuated cells in fibrin bed with CD34 (a marker protein of vascular endothelial cells and endothelial progenitor cells) failed to disclose positive result. However the cells which were isolated from fibrin bed by collagenase were specifically stained with anti-CD34 antibody. The isolated cells did not form tube-like structures on collagen gel by 3 weeks in culture. CML-HSA significantly increased the number of total isolated cells and CD34(+) cells as well as the number of vessel-like structures. These results indicate that CML-HSA overproduced immature blood vessels from cultured choroidal explants in fibrin gel, which consisted of CD34(+) cells. The CML-HSA-induced formation of immature blood vessel may be implicated in various choroidal diseases such as age-related macular degeneration.
Volume 27(9)
Pages 1382-7
Published 2004-9-1
DOI 10.1248/bpb.27.1382
PII JST.JSTAGE/bpb/27.1382
PMID 15340223
MeSH Animals Antigens, CD34 / metabolism* Cell Culture Techniques Choroid / cytology* Choroid / drug effects Choroid / metabolism Choroidal Neovascularization / metabolism Choroidal Neovascularization / pathology* Glycation End Products, Advanced / metabolism Lysine / analogs & derivatives* Lysine / pharmacology* Male Rats Rats, Wistar Time Factors
IF 1.863
Times Cited 6
WOS Category PHARMACOLOGY & PHARMACY
Resource
Human and Animal Cells 3Y1