Abstract:
:This study investigates the relationship between the rate of phorbol ester-induced contraction of intact rat aorta and protein kinase C activation, as assessed by the translocation of protein kinase C from the cytosolic to the particulate fraction. Aorta was exposed to Ca(2+)-free physiologic salt solution prior to phorbol ester to prevent Ca(2+)-induced protein kinase C translocation during tissue homogenization. Phorbol myristate acetate, as well as phorbol dibutyrate, decreased cytosolic and/or increased particulate protein kinase C activity as early as 5 s following phorbol ester addition, which was prior to, or coincident with, the onset of contraction. These results suggests that phorbol ester-induced contraction of intact vascular smooth muscle is associated in a time-dependent manner with protein kinase C activation.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Bazan E,Campbell AK,Rapoport RMdoi
10.1016/0922-4106(95)90001-2subject
Has Abstractpub_date
1995-08-15 00:00:00pages
253-7issue
3eissn
0014-2999issn
1879-0712journal_volume
290pub_type
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