Regeneration of amputated zebrafish fin rays from de novo osteoblasts.
Regeneration of amputated zebrafish fin rays from de novo osteoblasts.
复制标题
DOI:
10.1016/j.devcel.2012.03.006
复制
发表时间:
2012-04-17
影响因子:
11.8
通讯作者:
Poss, Kenneth D.
中科院分区:
文献类型:
--
作者:
Singh, Sumeet Pal;Holdway, Jennifer E.;Poss, Kenneth D.
Determining the cellular source of new skeletal elements is critical for understanding appendage regeneration in amphibians and fish. Recent lineage-tracing studies indicated that zebrafish fin ray bone regenerates through the de-differentiation and proliferation of spared osteoblasts, with limited if any contribution from other cell types. Here, we examined the requirement for this mechanism by using genetic ablation techniques to destroy virtually all skeletal osteoblasts in adult zebrafish fins. Animals survived this injury and restored the osteoblast population within two weeks. Moreover, amputated fins depleted of osteoblasts regenerated new fin ray structures at rates indistinguishable from fins possessing a resident osteoblast population. Inducible genetic fate-mapping confirmed that new bone cells do not arise from de-differentiated osteoblasts under these conditions. Our findings demonstrate diversity in the cellular origins of appendage bone, and reveal that de novo osteoblasts can fully support the regeneration of amputated zebrafish fins.
登录
查看更多内容
影响因子:
56.9
作者:
Poss, KD;Wilson, LG;Keating, MT
通讯作者:
Keating, MT
影响因子:
64.8
作者:
Dor, Y;Brown, J;Melton, DA
通讯作者:
Melton, DA
影响因子:
11.8
作者:
Knopf, Franziska;Hammond, Christina;Weidinger, Gilbert
通讯作者:
Weidinger, Gilbert
影响因子:
--
作者:
GOSS, RJ;STAGG, MW
通讯作者:
STAGG, MW
DOI:
10.1038/nrg2879
发表时间:
2010-10
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--