Adiponectin promotes endothelial progenitor cell number and function

R. Shibata,Carsten Skurk,N. Ouchi,G. Galasso,Kazuhisa Kondo,Taiki Ohashi,M. Shimano,S. Kihara,T. Murohara,K. Walsh

Published 2008 in FEBS Letters

ABSTRACT

Obesity‐linked diseases are associated with suppressed endothelial progenitor cell (EPC) function. Adiponectin is an adipose‐derived protein that is downregulated in obese and diabetic subjects. Here, we investigated the effects of adiponectin on EPCs. EPC levels did not increase in adiponectin deficient (APN‐KO) in response to hindlimb ischemia. Adenovirus‐mediated delivery of adiponectin increased EPC levels in both WT and APN‐KO mice. Incubation of human peripheral blood mononuclear cells with adiponectin led to an increase of the number of EPCs. Adiponectin induced EPC differentiation into network structures and served as a chemoattractant in EPC migration assays. These data suggest that hypoadiponectinemia may contribute to the depression of EPC levels that are observed in patients with obesity‐related cardiovascular disorders.

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