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Decorin mimic promotes endothelial cell health in endothelial monolayers and endothelial–smooth muscle co‐cultures
Author(s) -
Scott Rebecca A.,
Ramaswamy Aneesh K.,
Park Kinam,
Panitch Alyssa
Publication year - 2017
Publication title -
journal of tissue engineering and regenerative medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.835
H-Index - 72
eISSN - 1932-7005
pISSN - 1932-6254
DOI - 10.1002/term.2035
Subject(s) - decorin , chemistry , microbiology and biotechnology , p38 mitogen activated protein kinases , angiogenesis , endothelial stem cell , mapk/erk pathway , phosphorylation , pharmacology , cancer research , extracellular matrix , in vitro , medicine , biology , proteoglycan , biochemistry
Non‐specific cytotoxins, including paclitaxel and sirolimus analogues, currently utilized as anti‐restenotic therapeutics, affect not only smooth muscle cells (SMCs) but also neighbouring vascular endothelial cells (ECs). These drugs inhibit the formation of an intact endothelium following vessel injury, thus emphasizing the critical need for new candidate therapeutics. Utilizing our in vitro models, including EC monolayers and both hyperplastic and quiescent EC–SMC co‐cultures, we investigated the ability of DS–SILY 20 , a decorin mimic, to promote EC health. DS–SILY 20 increased EC proliferation and migration by 1.5‐ and 2‐fold, respectively, which corresponded to increased phosphorylation of ERK‐1/2. Interestingly, IL‐6 secretion and the production of both E‐selectin and P‐selectin were reduced in the presence of 10 μ m DS–SILY 20 , even in the presence of the potent pro‐inflammatory cytokine platelet‐derived growth factor (PDGF). In hyperplastic and quiescent EC–SMC co‐cultures, DS–SILY 20 treatment reduced the secretion of IFN γ , IL‐1 β , IL‐6 and TNF α , corresponding to a 23% decrease in p38 phosphorylation. E‐selectin and P‐selectin expression was further reduced following DS–SILY 20 treatment in both co‐culture models. These results indicate that DS–SILY 20 promotes EC health and that this decorin mimic could serve as a potential therapeutic to promote vessel healing following percutaneous coronary intervention (PCI). Copyright © 2015 John Wiley & Sons, Ltd.