Intra-operative Bone Marrow Processing for Bone Regeneration
Poster Feb 23, 2009
Concentrated stem cell products obtained from autologous bone marrow aspirate were previously shown to regenerate avascular necrosis of the bone and non-union fractures. The aspirate processing was performed using apheresis technology, however, a detailed protocol has not been published yet. The aim of our study was to develop a clinical protocol using the CobeSpectra apheresis device to process the bone marrow aspirate.
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