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Physiology (Bethesda). 2013 May;28(3):164-71. doi: 10.1152/physiol.00056.2012.

Membrane-tethered ligands: tools for cell-autonomous pharmacological manipulation of biological circuits.

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  • 1Department of Cellular and Molecular Physiology and Molecular Physiology, Yale School of Medicine, New Haven, Connecticut, USA.

Abstract

Detection of secreted signaling molecules by cognate cell surface receptors is a major intercellular communication pathway in cellular circuits that control biological processes. Understanding the biological significance of these connections would allow us to understand how cellular circuits operate as a whole. Membrane-tethered ligands are recombinant transgenes with structural modules that allow them to act on cell-surface receptors and ion channel subtypes with pharmacological specificity in a cell-autonomous manner. Membrane-tethered ligands have been successful in the specific manipulation of ion channels as well as G-protein-coupled receptors, and, in combination with cell-specific promoters, such manipulations have been restricted to genetically defined subpopulations within cellular circuits in vivo to induce specific phenotypes controlled by those circuits. These studies establish the membrane-tethering approach as a generally applicable method for dissecting neural and physiological circuits.

PMID:
23636262
PMCID:
PMC4073904
DOI:
10.1152/physiol.00056.2012
[PubMed - indexed for MEDLINE]
Free PMC Article
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