Abstract:
:Isolated rat hepatocytes exposed to CCl4 showed a dramatic decrease in [32P] incorporation into proteins which was evident as early as 5 min after the haloalkane addition. DEAE cellulose separation of protein kinases present in both particulated and cytosolic fractions of hepatocytes revealed that only the calcium and phospholipids dependent protein kinase C was affected by the treatment with CCl4, while kinases not requiring these factors for their activity were unmodified. Several 4-hydroxyunsaturated aldehydes known to be produced during CCl4-stimulated lipid peroxidation were found to inhibit protein kinase C at micromolar concentrations, suggesting the possibility that peroxidative events might be responsible for the impairment of protein kinase C during CCl4 intoxication.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Poli G,Albano E,Dianzani MU,Melloni E,Pontremoli S,Marinari UM,Pronzato MA,Cottalasso Ddoi
10.1016/s0006-291x(88)81136-7subject
Has Abstractpub_date
1988-06-16 00:00:00pages
591-7issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(88)81136-7journal_volume
153pub_type
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