Roles of bone morphogenetic protein-6 in aldosterone regulation by adrenocortical cells

Hiroyuki Otani, Fumio Otsuka, Kenichi Inagaki, Jiro Suzuki, Hirofumi Makino

Research output: Contribution to journalReview articlepeer-review

7 Citations (Scopus)


Aldosterone production occurs in the adrenal cortex, and is regulated primarily by angiotensin II (Ang II), potassium and adrenocorticotropin (ACTH). In the presence of the aldosterone stimulators, steroidogenesis is further governed by local autocrine and/or paracrine factors in the adrenal cortex. We reported the presence of functional bone morphogenetic protein (BMP) system in the adrenal cortex and also demonstrated that BMP-6 increases Ang Il-induced aldosterone production, which could be involved in the "aldosterone breakthrough" phenomenon. Aldosterone breakthrough is the phenomenon by which circulating aldosterone concentrations increase above pre-treatment levels after long-term therapy with ACE inhibitors or Ang II type 1 receptor antagonists (ARB). This phenomenon may lead to important clinical consequences since increased aldosterone in a high-salt state facilitates cardiovascular and renal damage in hypertensive patients. We found that long-term ARB treatment reverses the reduction of aldosterone synthesis by adrenocortical cells, thereby causing "cellular aldosterone breakthrough". The availability of BMP-6 in the adrenal cortex may be at least partly involved in the occurrence of cellular escape from aldosterone suppression under chronic treatment with ARB.

Original languageEnglish
Pages (from-to)213-218
Number of pages6
JournalActa medica Okayama
Issue number4
Publication statusPublished - Aug 2010


  • Adrenal cortex
  • Aldosterone
  • Angiotensin II
  • Bone morphogenetic protein

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)


Dive into the research topics of 'Roles of bone morphogenetic protein-6 in aldosterone regulation by adrenocortical cells'. Together they form a unique fingerprint.

Cite this