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Enhanced arterial intimal thickening after balloon catheter injury in diabetic animals accompanied by PDGF β ‐receptor overexpression of aortic media
Author(s) -
KANZAKI T.,
SHINOMIYA M.,
UEDA S.,
MORISAKI N.,
SAITO Y.,
YOSHIDA S.
Publication year - 1994
Publication title -
european journal of clinical investigation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.164
H-Index - 107
eISSN - 1365-2362
pISSN - 0014-2972
DOI - 10.1111/j.1365-2362.1994.tb02179.x
Subject(s) - medicine , platelet derived growth factor receptor , balloon catheter , thickening , platelet derived growth factor , balloon , cardiology , receptor , catheter , tunica intima , growth factor , surgery , carotid arteries , chemistry , polymer science
. Cultured aortic smooth muscle cells (SMC) of diabetic rats and rabbits, which overexpress platelet‐derived growth factor (PDGF) β ‐receptor compared with controls, have a unique phenotype. In this study we report on the PDGF β ‐receptor overexpression in aortas of diabetic animals and the increased intimal thickening of carotid arteries in diabetic rabbits after balloon catheter injury compared with that in controls. In diabetic aortas with no treatments of balloon catheter injury, intimal thickening was not observed in spite of the overexpression of PDGF β ‐receptor, indicating that the growth property of medial SMC in diabetic aortas was changed before the intimal thickening could take place. PDGF is known to be the main contributor to the intimal thickening induced by balloon catheter injury, which is one of several forms of arterial injuries. Intimal thickening after balloon catheter injury in diabetic rabbits increased compared with that in controls. These results imply that PDGF β ‐receptor overexpression of SMC in medial layers plays an important role in intimal thickening in the formation of advanced diabetic macroangiopathy.