Abstract:
:Vascular smooth muscle cells cultured from spontaneously hypertensive (SHR), New Zealand genetically hypertensive (GH) rat strains and their control strains (Wistar-Kyoto (WKY) and normal Wistar (N) rats) were compared for mitogenic responses [( 3H]-thymidine incorporation) to angiotensin II (AII), fetal calf serum (FCS), and the phorbol ester 12-O-tetradecanoyl-phorbol-13-acetate (TPA). SHR cells showed enhanced basal [3H]-thymidine incorporation and increased responses to all three factors. In contrast, basal and FCS-stimulated [3H]-thymidine incorporation was the same or less in GH than in N cells. However, DNA synthesis was greater in GH cells in response to AII, AII + TPA or FCS + TPA. These results suggest that vascular smooth muscle cells from both hypertensive rat strains display enhanced mitogenesis, but the enhancement occurs via different intracellular signalling pathways.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Harris EL,Grigor MR,Millar JAdoi
10.1016/0006-291x(90)90528-usubject
Has Abstractpub_date
1990-08-16 00:00:00pages
1249-55issue
3eissn
0006-291Xissn
1090-2104pii
0006-291X(90)90528-Ujournal_volume
170pub_type
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