Allogeneic Platelet Releasate Preparations Derived via a Novel Rapid Thrombin Activation Process Promote Rapid Growth and Increased BMP-2 and BMP-4 Expression in Human Adipose-Derived Stem Cells

Stem Cells International
Michael McLaughlinDaniel Kuebler

Abstract

The administration of human adipose-derived stem cells (ASCs) represents a promising regenerative therapy for the treatment of orthopedic injuries. While ASCs can be easily isolated from liposuction-derived adipose tissue, most clinical applications will likely require in vitro culture expansion of these cells using nonxenogeneic components. In this study, platelet releasate was generated using a novel rapid thrombin activation method (tPR). ASCs grown in media supplemented with tPR proliferated much faster than ASCs grown in media supplemented with 10% fetal bovine serum. The cells also retained the ability to differentiate along chondrogenic, adipogenic, and osteogenic lineages. The tPR cultured ASCs displayed elevated expression of BMP-4 (5.7 ± 0.97-fold increase) and BMP-2 (4.7 ± 1.3-fold increase) and decreased expression of PDGF-B (4.0 ± 1.4-fold decrease) and FGF-2 (33 ± 9.0-fold decrease). No significant changes in expression were seen with TGF-β and VEGF. This pattern of gene expression was consistent across different allogeneic tPR samples and different ASC lines. The use of allogeneic rapidly activated tPR to culture ASCs is associated with both an increased cell yield and a defined gene expression profile making it ...Continue Reading

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Citations

Apr 5, 2018·Aesthetic Surgery Journal·Lohrasb R SayadiAlan D Widgerow
Nov 22, 2018·International Wound Journal·Oliver J SmithAsh Mosahebi
Jul 17, 2020·Frontiers in Bioengineering and Biotechnology·Stuart B Goodman, Tzuhua Lin
Feb 14, 2018·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Joseph IrvinDaniel Kuebler

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Methods Mentioned

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