PMID: 8611168Feb 1, 1996Paper

Inhibition of endothelin- and phorbol ester-stimulated tyrosine kinase activity by corticotrophin in the rat adrenal zona glomerulosa

The Biochemical Journal
S Kapas, J P Hinson

Abstract

1. The experiments described in this study were carried out to investigate the role of tyrosine kinase in the acute adrenal response to peptide hormone stimulation, and to determine whether the activity of this kinase may be subject to regulation by other intracellular signalling mechanisms in the adrenal zona glomerulosa. 2. Previous studies from this laboratory have shown that angiotensin II stimulates tyrosine kinase activity in the rat adrenal cortex. This study has shown, for the first time, that endothelin-1 also stimulates tyrosine kinase activity in this tissue. 3. Using the specific inhibitor of protein kinase C (PKC) activity, Ro 31-8220, we have shown that stimulation of tyrosine kinase activity, in response to endothelin-1, angiotensin II or the phorbol ester phorbol 12-myristate 13-acetate, is at least partly dependent on increased PKC activity. 4. The data presented also provide further evidence of cross-talk between signalling systems in the adrenal cortex. Corticotrophin and its intracellular second messenger, cyclic AMP, significantly attenuate the increment in tyrosine kinase activity seen in response to each of the effectors used. 5. The results of this study provide important new evidence for the regulation ...Continue Reading

Citations

Jul 18, 2002·Annals of the New York Academy of Sciences·Lawrence S Kirschner
Mar 5, 2005·Pediatric Blood & Cancer·Carlos Rodriguez-GalindoRaul C Ribeiro
Jan 21, 2011·Physiological Reviews·Donald E KohanDavid M Pollock
Nov 1, 1996·Endocrine Research·S Kapas, J P Hinson

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