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2015 ; 4
(1
): 60-4
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MAGP1, the extracellular matrix, and metabolism
#MMPMID26167404
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Adipocyte
2015[Jan]; 4
(1
): 60-4
PMID26167404
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Adipose tissue and the extracellular matrix were once considered passive players
in regulating physiological processes. Now, both entities are acknowledged for
their capacity to engage signal transduction pathways, and for their involvement
in maintaining normal tissue homeostasis. We recently published a series of
studies that identified a novel mechanism whereby an extracellular matrix
molecule, MAGP1 (microfibril associated glycoprotein 1), can regulate energy
metabolism in adipose tissue. MAGP1 is a component of extracellular microfibrils
and plays a supportive role in maintaining thermoregulation by indirectly
regulating expression of the thermogenic uncoupling proteins (UCPs). The focus of
this commentary is to draw attention to the role of the extracellular matrix in
regulating the bioavailability of signaling molecules, like transforming growth
factor ? (TGF?), and exemplify that a better understanding of the extracellular
matrix's biological properties could unveil a new source of therapeutic targets
for metabolic diseases.