Cytokine Production by Circulating Endothelial Progenitor Cells before and after G-CSF Mobilization

<p><strong>Objective: </strong>Bone marrow-derived circulating endothelial cells (EPCs) may migrate in ischemia zone, to stimulate resident progenitor cells to proliferation, differentiation and migration in a damage zone, and reduce an ischemia zone through formation of new vessel...

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Main Authors: Alexander Lykov (Author), Olga Poveschenko (Author), Natalia Bondarenko (Author), Alexander Poveschenko (Author), Irina Kim (Author), Eugenie Pokushalov (Author), Alexander Romanov (Author), Vladimir Konenkov (Author)
Format: Book
Published: Studies on Stem Cells Research and Therapy - Peertechz Publications, 2016-11-29.
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001 peertech__10_17352_sscrt_000006
042 |a dc 
100 1 0 |a Alexander Lykov  |e author 
700 1 0 |a  Olga Poveschenko  |e author 
700 1 0 |a  Natalia Bondarenko  |e author 
700 1 0 |a  Alexander Poveschenko  |e author 
700 1 0 |a  Irina Kim  |e author 
700 1 0 |a  Eugenie Pokushalov  |e author 
700 1 0 |a  Alexander Romanov   |e author 
700 1 0 |a Vladimir Konenkov  |e author 
245 0 0 |a Cytokine Production by Circulating Endothelial Progenitor Cells before and after G-CSF Mobilization 
260 |b Studies on Stem Cells Research and Therapy - Peertechz Publications,   |c 2016-11-29. 
520 |a <p><strong>Objective: </strong>Bone marrow-derived circulating endothelial cells (EPCs) may migrate in ischemia zone, to stimulate resident progenitor cells to proliferation, differentiation and migration in a damage zone, and reduce an ischemia zone through formation of new vessels. Granulocyte colony stimulating factor (G-   CSF) is well established to mobilize hematopoietic stem cells and might, thereby, also increase the pool of endogenously circulating EPCs. EPCs secrete pro-angiogenic factors. Therefore, we investigated the effects of G-CSF administration on mobilization and functional activities of bloodderived EPC in patients with chronic ischemic heart disease (CIHD).</p><p><strong>Methods and Results: </strong>Ten patients with CIHD receive 300 μg per day subcutaneous G-CSF injection for 5 days. The number of EPCs, colony-forming capacity, tube formation and cytokine release were analyzed before and after G-CSF therapy. At day 5 of G-CSF treatment, the number of circulating CD34+CD45- and CD34+CD133+ and CD34+KDR+ cells significantly increased in patients with CIHD. Also, G-CSF therapy augmented the colony-forming capacity and tube formation by EPCs. Likewise, G-CSF treatment augmented cytokine production by circulating EPCs. Early EPCs and late EPCs produced a wide range of cytokines, which dependent the culture condition (gelatin-loaded or fibronectin-loaded surface of culture flask) and the days of cultivation (on day 8 or on day 16). <br></p><p><strong>Conclusion:</strong> G-CSF treatment effectively mobilizes EPCs, which through paracrine factors production may influence at the resident progenitor cells in ischemic zone of heart to stimulate the repair of myocardium through neoangiogenesis.</p> 
540 |a Copyright © Alexander Lykov et al. 
546 |a en 
655 7 |a Research Article  |2 local 
856 4 1 |u https://doi.org/10.17352/sscrt.000006  |z Connect to this object online.