Immunomodulatory Properties of Adipose-Derived Stem Cells Cultured in Autologous Serum
Poster Sep 09, 2010
This study investigated whether adipose-derived stem cells (ADSC), cultivated in the medium containing autologous serum, maintain immunomodulatory properties of MSC. Obtained cells were CD73, CD90 and CD105 positive but CD34 and CD45 negative. ADSC underwent in vitro differentiation into adipocytes, osteoblasts and chondroblasts. Immunomodulatory properties of ADSC were investigated by blast transformation reaction and significant suppression of T lymphocyte proliferation was induced in a dose dependent manner.
We found a distinct subpopulation of Tregs within BMSCs. Tregs and BMSCs in co-culture conferred neuroprotection that varied in a dose-dependent manner. Tregs minimized stem cell production of IL-6, a pro-inflammatory cytokine, and inhibited BMSC secretion of FGF-beta, a cytokine related to BMSC proliferation and differentiation. The ratio of Tregs found natively in BMSCs is optimally adapted to provide the maximum neuroprotective benefit of stem cell treatment after ischemic stroke.READ MORE