Homing of bone marrow derived mononuclears after intracoronary transventricular transplantation
Poster Jan 11, 2010
A new method of administration of bone marrow derived mononuclear cells (BMMCs) was studied using the model of acute myocardial infarction in rats. The transplanted cells were detected only in the scar tissue and had fibroblast-like phenotype. They differentiated neither into cardiomyocytes nor into the cells of blood vessels.
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