Abstract:
:Abnormal proliferation of vascular smooth muscle cells is a key event in the formation of atherosclerotic plaques in humans. It has been suggested that modulation of platelet derived growth factor chain A (PDGF-A) gene expression may contribute to atherosclerosis. Using an 'in situ hybridization' technique the present study shows that the presence of low density lipoproteins induces an eight fold increased expression of the transforming gene PDGF-A in human smooth muscle cells. The influence on PDGF-A expression only occurred after oxidative modification of low density lipoproteins, a process known to be important in atherogenesis. The non-atherogenic high density lipoproteins did not modulate the PDGF-A mRNA levels in smooth muscle cells. Consequently, oxidized low density lipoproteins may participate in atherosclerotic lesion formation as a result of autocrine stimulation of PDGF-A.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Zwijsen RM,Japenga SC,Heijen AM,van den Bos RC,Koeman JHdoi
10.1016/s0006-291x(05)81563-3subject
Has Abstractpub_date
1992-08-14 00:00:00pages
1410-6issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(05)81563-3journal_volume
186pub_type
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