Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 473, Issue 1, Pages 35-41Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2016.03.046
Keywords
Ceramide-1 phosphate; Mesenchymal stem cell; Priming; Pulmonary artery hypertension
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Funding
- Global High-tech Biomedicine Technology Development Program of the National Research Foundation (NRF) & Korea Health Industry Development Institute (KHIDI) (MSIPMOHW) [2015M3D6A1065364]
- Basic Science Research Program through the NRF [2015R1A2A1A15054754]
- Korea Korean Health Technology R&D Project, Ministry of Health & Welfare of the Republic of Korea [HI14C3339]
- National Research Foundation of Korea [2015M3D6A1065364, 2015R1A2A1A15054754] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Some molecules enriched in damaged organs can contribute to tissue repair by stimulating the mobilization of stem cells. These so-called priming factors include bioactive lipids, complement components, and cationic peptides. However, their therapeutic significance remains to be determined. Here, we show that priming of mesenchymal stromal/stem cells (MSCs) with ceramide-1 phosphate (C1P), a bioactive lipid, enhances their therapeutic efficacy in pulmonary artery hypertension (PAH). Human bone marrow (BM)-derived MSCs treated with 100 or 200 1.tM C1P showed improved migration activity in Transwell assays compared with non-primed MSCs and concomitantly activated MAPKP42/44 and Ala signaling cascades. Although OP priming had little effect on cell surface marker phenotypes and the multipotency of MSCs, it potentiated their proliferative, colony-forming unit-fibroblast, and anti-inflammatory activities. In a monocrotaline-induced PAH animal model, a single administration of human MSCs primed with DP significantly attenuated the PAH-related increase in right ventricular systolic pressure, right ventricular hypertrophy, and thickness of alpha-smooth muscle actin-positive cells around the vessel wall. Thus, this study shows that OP priming increases the effects of MSC therapy by enhancing the migratory, self-renewal, and anti-inflammatory activity of MSCs and that MSC therapy optimized with priming protocols might be a promising option for the treatment of PAH patients. (C) 2016 Elsevier Inc. All rights reserved.
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