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Journal Article
Research Support, Non-U.S. Gov't
A Method for the Activation of Platelet-Rich Plasma via Bead Mill Homogenizer for Mesenchymal Stem Cell Culture.
Tissue Engineering. Part C, Methods 2017 August
Activated platelet-rich plasma (PRP) has been studied as a replacement for fetal bovine serum (FBS) in stem cell culture. However, current methods are time-consuming or require addition of exogenous substances to activate PRP, which have disadvantages in clinical applications. In this study, we developed a new method for PRP activation using a bead mill homogenizer and compared it with previous methods of PRP activation. PRP was prepared via a two-step centrifugation process and activated via calcium (Ca-PRP), freeze-thaw cycles (FT-PRP), or bead mill homogenizer processing (BM-PRP). Quantification of growth factors in PRP revealed that all forms of activated PRP released higher levels of platelet-derived growth factor-AB and transforming growth factor-β1 than those in platelet-poor plasma; however, BM-PRP resulted in significantly higher levels of growth factors than those from Ca-PRP and FT-PRP. Next, we analyzed the ability of the various forms of PRP to stimulate proliferation, migration, and differentiation of umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs). Our results showed that BM-PRP significantly increased proliferation and migration rates of UCB-MSCs while maintaining the phenotypical properties and stem cell abilities of MSCs. Therefore, the developed method could be suitable for PRP activation, and the BM-activated PRP could be an adequate replacement for FBS in stem cell culture.
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