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J Clin Invest. 2006 May;116(5):1210-2.

Receptor heterodimerization: a new level of cross-talk.

Author information

1
National Heart and Lung Institute, Imperial College, London, United Kingdom. p.j.barnes@imperial.ac.uk

Abstract

Most G protein-coupled receptors (GPCRs) probably exist as homodimers, but it is increasingly recognized that GPCRs may also dimerize with other types of GPCRs and that this physical interaction may affect the function of either receptor. A study in this issue of the JCI demonstrates how heterodimerization between prostaglandin E receptors and beta(2)-adrenergic receptors (beta(2)ARs) in airway smooth muscle cells results in uncoupling of beta(2)ARs and a diminished bronchodilator response to beta(2)AR agonists (see the related article beginning on page 1400). This illustrates what we believe to be a novel mechanism of receptor cross-talk and highlights the potential importance of GPCR heterodimerization in diseases such as asthma and how this could lead to the development of more specific therapies in the future.

PMID:
16670762
PMCID:
PMC1451216
DOI:
10.1172/JCI28535
[Indexed for MEDLINE]
Free PMC Article

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