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Platelet coated stem cells Could Offer Targeted Heart Repair
In a new pilot study using an animal model, North Carolina State University researcher Ke Cheng and his team show that "decorating" cardiac stem cells with platelet nanovesicles can increase the stem cells' ability to find and remain at the site of heart attack injury and enhance their effectiveness in treatment.
"Platelets can home in on an injury site and stay there, and even in some cases recruit a body's own naturally occurring stem cells to the site, but they are a double-edged sword," says Cheng, associate professor of veterinary medicine and associate professor in the NC State/UNC Joint Department of Biomedical Engineering. "That's because once the platelets arrive at the site of injury, they trigger the coagulation processes that cause clotting. In a heart-attack injury, blood clots are the last thing that you want."