Imparting regenerative capacity to limbs by progenitor cell transplantation.
Imparting regenerative capacity to limbs by progenitor cell transplantation.
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DOI:
10.1016/j.devcel.2012.11.017
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发表时间:
2013-01-14
影响因子:
11.8
通讯作者:
Slack, Jonathan M. W.
中科院分区:
文献类型:
--
作者:
Lin, Gufa;Chen, Ying;Slack, Jonathan M. W.
The frog Xenopus can normally regenerate its limbs at early developmental stages but loses the ability during metamorphosis. This behavior provides a potential gain-of-function model for measures that can enhance limb regeneration. Here we show that frog limbs can be caused to form multidigit regenerates after receiving transplants of larval limb progenitor cells. It is necessary to activate Wnt/β -catenin signaling in the cells, and to add Sonic hedgehog, FGF10 and thymosin β4. These factors promote survival and growth of the grafted cells and also provide pattern information. The eventual regenerates are not composed solely of donor tissue; the host cells also make a substantial contribution despite their lack of regeneration-competence. Cells from adult frog legs or from regenerating tadpole tails do not promote limb regeneration, demonstrating the necessity for limb progenitor cells. These findings have obvious implications for the development of a technology to promote limb regeneration in mammals.
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通讯作者:
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