Lgr5+ cells regenerate hair cells via proliferation and direct transdifferentiation in damaged neonatal mouse utricle.
Lgr5+ cells regenerate hair cells via proliferation and direct transdifferentiation in damaged neonatal mouse utricle.
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损伤招募的 Lgr5 细胞通过新生小鼠子宫内增殖和直接转分化再生毛细胞
DOI:
10.1038/ncomms7613
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发表时间:
2015-04-07
影响因子:
16.6
通讯作者:
Cheng, Alan G.
中科院分区:
文献类型:
--
作者:
Wang, Tian;Chai, Renjie;Kim, Grace S.;Pham, Nicole;Jansson, Lina;Duc-Huy Nguyen;Kuo, Bryan;May, Lindsey A.;Zuo, Jian;Cunningham, Lisa L.;Cheng, Alan G.
Recruitment of endogenous progenitors is critical during tissue repair. The inner ear utricle requires mechanosensory hair cells (HCs) to detect linear acceleration. After damage, non-mammalian utricles regenerate HCs via both proliferation and direct transdifferentiation. In adult mammals, limited transdifferentiation from unidentified progenitors occurs to regenerate extrastriolar Type II HCs. Here, we show that HC damage in neonatal mouse utricle activates the Wnt target gene Lgr5 in striolar supporting cells. Lineage tracing and time-lapse microscopy reveal that Lgr5+ cells transdifferentiate into HC-like cells in vitro. In contrast to adults, HC ablation in neonatal utricles in vivo recruits Lgr5+ cells to regenerate striolar HCs through mitotic and transdifferentiation pathways. Both Type I and II HCs are regenerated, and regenerated HCs display stereocilia and synapses. Lastly, stabilized β-catenin in Lgr5+ cells enhances mitotic activity and HC regeneration. Thus Lgr5 marks Wnt-regulated, damage-activated HC progenitors and may help uncover factors driving mammalian HC regeneration.
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影响因子:
2.8
作者:
Freeman, S;Plotnik, M;Sohmer, H
通讯作者:
Sohmer, H
影响因子:
64.8
作者:
通讯作者:
--
DOI:
10.1523/jneurosci.6274-11.2012
发表时间:
2012-05-09
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Burns JC;Cox BC;Thiede BR;Zuo J;Corwin JT
通讯作者:
Corwin JT
影响因子:
1.5
作者:
Doerflinger, NH;Macklin, WB;Popko, B
通讯作者:
Popko, B
影响因子:
2.8
作者:
Dye, BJ;Frank, TC;Dickman, JD
通讯作者:
Dickman, JD