Angiotensin II differentially affects cyclic AMP formation in intact adrenal glomerulosa cells and in purified membrane preparations

Cristina Missale, Maurizio Memo, Sandra Sigala, Michele O. Carruba, PierFranco Spano

Research output: Contribution to journalArticlepeer-review

Abstract

In the present study we have investigated the cyclic AMP (cAMP) responses to angiotensin II (AII) in isolated rat adrenal glomerulosa cells and in purified membrane preparations. When cells were incubated with 10 nM AII cAMP cellular content increased 2-fold at 5 min and 3-fold at 10 min, then rapidly declined. The effect of AII was dose-dependent with EC50 of 4 nM and was mediated by AII receptors as shown by the pharmacological characterization with AII analogs and AII receptor antagonists. Since AII inhibited cAMP formation in purified adrenal cortical membrane preparations, the stimulatory effect observed in intact cells could be indirect and mediated by other intracellular events.

Original languageEnglish
Pages (from-to)167-178
Number of pages12
JournalRegulatory Peptides
Volume24
Issue number2
DOIs
Publication statusPublished - 1989

Keywords

  • Angiotensin II
  • Cyclic AMP
  • Glomerulosa cell

ASJC Scopus subject areas

  • Biochemistry
  • Endocrinology
  • Physiology
  • Neuroscience(all)

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