Author(s): Dong F, Caplan AI
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Abstract PURPOSE OF REVIEW: The aim of this review is to summarize recent findings of endogenous cell-based tissue repair triggered by a multitude of approaches, especially stem cell therapy. RECENT FINDINGS: The emerging evidence has demonstrated that an important role of transplanted cells is to act as an initiator to trigger endogenous stem cell-mediated tissue repair after injury. Multiple approaches may orchestrate endogenous regeneration. The low efficacy of endogenous stem cells may be due to deficiency of cytokines to activate and induce endogenous stem cell homing, relatively insufficient endogenous stem cell pool, diseases or aging-related dysfunction of endogenous stem cells, and hostile microenvironments that limit the capacity of endogenous stem cells to repair damaged tissue. In certain situations, external stimulation and/or exogenous stem cells may be required to catalyze the repair. SUMMARY: Endogenous stem cells are playing an important role in tissue repair. An important role of transplanted cells is to act as an initiator to trigger endogenous stem cell-based tissue repair.
This article was published in Curr Opin Organ Transplant
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