Genetic Modifications of Corticosteroid Receptors in Hypertension

Conference paper
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 707)

Abstract

Gain-of-function mineralocorticoid receptor (MR) mutations and loss-of-function glucocorticoid receptor (GR) mutations are accompanied clinically by elevated blood pressure. This brief presentation explores how clinical studies have proven prismatic in terms of the evolution of MR and the implications for the pathogenesis of ACTH-induced hypertension. In 2000 Geller et al. published their findings on a point mutation in the gene encoding human MR, leading to a single amino acid substitution (S810L) and producing juvenile hypertension exacerbated by pregnancy (Science, 289 (5476):23–26). MR mutations in affected subjects are constitutive partial agonists, reflecting the proximity of and interaction between Ala 773 and the mutant Leu 810. Iterative Bayesian analyses of possible evolutionary trees do not distinguish between any of the four members of the steroid receptor subfamily (MR, GR, AR, and PR) as the first to branch off the putative ancestral protein.

Keywords

Corticosteroid Angiotensin Glucocorticoid Glycoside Aldosterone 

References

  1. 1.
    Gellen D, Fahri A. et al. Activating mineralocorticoid receptor mutation in hypertension exacerbated by pregnancy. Science. 2000;289:119–123.CrossRefGoogle Scholar
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    Dostanic-Larson I, Van Huysse JW. The highly conserved cardiac binding site of Na-K-ATPase plays a role in blood pressure regulation. Proc. Nat. Acad. Sci. (USA). 2005;102:15845–15850.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Prince Henry’s Institute of Medical ResearchClaytonAustralia

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