Dietary fish oil blocks carcinogen-induced down-regulation of colonic protein kinase C isozymes
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چکیده
منابع مشابه
Peptidyl-prolyl isomerase Pin1 controls down-regulation of conventional protein kinase C isozymes.
The down-regulation or cellular depletion of protein kinase C (PKC) attendant to prolonged activation by phorbol esters is a widely described property of this key family of signaling enzymes. However, neither the mechanism of down-regulation nor whether this mechanism occurs following stimulation by physiological agonists is known. Here we show that the peptidyl-prolyl isomerase Pin1 provides a...
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Cardiac excitability and electrical activity are determined by the sum of individual ion channels, gap junctions and exchanger activities. Electrophysiological remodeling during heart disease involves changes in membrane properties of cardiomyocytes and is related to higher prevalence of arrhythmia-associated morbidity and mortality. Pharmacological and genetic manipulation of cardiac cells as ...
متن کاملRegulation of protein kinase C isozymes in kidney regeneration.
Tissue damage and repair processes are important factors in renal tumor progression. To determine whether protein kinase C (PKC) is involved in these processes, we characterized PKC isozymes during rat kidney regeneration using 3 models: (a) diffuse cortical hyperplasia and hypertrophy induced by folic acid; (b) focal necrosis of the S3 segments induced by S-(1,2-dichlorovinyl)-L-cysteine; and ...
متن کاملRegulation of conventional protein kinase C isozymes by phosphoinositide-dependent kinase 1 (PDK-1)
BACKGROUND Phosphorylation critically regulates the catalytic function of most members of the protein kinase superfamily. One such member, protein kinase C (PKC), contains two phosphorylation switches: a site on the activation loop that is phosphorylated by another kinase, and two autophosphorylation sites in the carboxyl terminus. For conventional PKC isozymes, the mature enzyme, which is pres...
متن کاملProtein tyrosine kinase but not protein kinase C inhibition blocks receptor induced alveolar macrophage activation
The selective enzyme inhibitors genistein and Ro 31-8220 were used to assess the importance of protein tyrosine kinase (PTK) and protein kinase C (PKC), respectively, in N-formyl-methionyl-leucyl-phenylalanine (FMLP) induced generation of superoxide anion and thromboxane B(2) (TXB(2)) in guinea-pig alveolar macrophages (AM). Genistein (3-100 muM) dose dependently inhibited FMLP (3 nM) induced s...
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ژورنال
عنوان ژورنال: Carcinogenesis
سال: 1997
ISSN: 1460-2180
DOI: 10.1093/carcin/18.2.351