Abstract:Transplanted bone marrow donor cells with tissue specific phenotypes have been found in the brain, liver, heart, skin, lung, kidney, and gut of transplanted humans and mice. Such observations have led to the controversial hypothesis that hematopoietic stem cells (HSC) might be intrinsically plastic, and through transdifferentiation or fusion lead to the repair of damaged tissues throughout the body. Alternately, it is suggested that fusion of macrophages to the recipient cells may explain this phenomenon. We h… Show more
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