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题目:: Donor satellite cell engraftment is significantly augmented when the host niche is preserved and endogenous satellite cells are incapacitated.
作者:: Boldrin(Luisa),Neal(Alice),Zammit(Peter S),Muntoni(Francesco),Morgan(Jennifer E)
状态:: 发布时间2012-08-21 , 更新时间 2016-11-22
期刊:: Stem Cells
摘要:: Stem cell transplantation is already in clinical practice for certain genetic diseases and is a promising therapy for dystrophic muscle. We used the mdx mouse model of Duchenne muscular dystrophy to investigate the effect of the host satellite cell niche on the contribution of donor muscle stem cells (satellite cells) to muscle regeneration. We found that incapacitation of the host satellite cells and preservation of the muscle niche promote donor satellite cell contribution to muscle regeneration and functional reconstitution of the satellite cell compartment. But, if the host niche is not promptly refilled, or is filled by competent host satellite cells, it becomes nonfunctional and donor engraftment is negligible. Application of this regimen to aged host muscles also promotes efficient regeneration from aged donor satellite cells. In contrast, if the niche is destroyed, yet host satellite cells remain proliferation-competent, donor-derived engraftment is trivial. Thus preservation of the satellite cell niche, concomitant with functional impairment of the majority of satellite cells within dystrophic human muscles, may improve the efficiency of stem cell therapy.
语言:: eng
DOI:

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