Lrp5 and Lrp6 redundantly control skeletal development in the mouse embryo.
Lrp5 and Lrp6 redundantly control skeletal development in the mouse embryo.
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DOI:
10.1016/j.ydbio.2011.08.020
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发表时间:
2011-11-15
影响因子:
2.7
通讯作者:
Williams BO
中科院分区:
文献类型:
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作者:
Joeng KS;Schumacher CA;Zylstra-Diegel CR;Long F;Williams BO
The role of Wnt signaling in osteoblastogenesis in the embryo remains to be fully established. Although β-catenin, a multifunctional protein also mediating canonical Wnt signaling, is indispensable for embryonic osteoblast differentiation, the roles of the key Wnt co-receptors Lrp5 and Lrp6 are unclear. Indeed, global deletion of either Lrp5 or Lrp6 did not overtly affect osteoblast differentiation in the mouse embryo. Here, we generated mice lacking both receptors specifically in the embryonic mesenchyme and observed an absence of osteoblasts in the embryo. In addition, the double-deficient embryos developed supernumerary cartilage elements in the zeugopod, revealing an important role for mesenchymal Lrp5/6 signaling in limb patterning. Importantly, the phenotypes of the Lrp5/6 mutant closely resembled those of the β-catenin-deficient embryos. These phenotypes are likely independent of any effect on the adherens junction, as deletion of α-catenin, another component of the complex, did not cause similar defects. Thus, Lrp5 and 6 redundantly control embryonic skeletal development, likely through β-catenin signaling.
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影响因子:
2.7
作者:
Collette, Nicole M.;Genetos, Damian C.;Murugesh, Deepa;Harland, Richard M.;Loots, Gabriela G.
通讯作者:
Loots, Gabriela G.
影响因子:
6.2
作者:
Li, Xiaodong;Ominsky, Michael S.;Paszty, Chris
通讯作者:
Paszty, Chris
影响因子:
4.6
作者:
Hilton, MJ;Tu, XL;Long, FX
通讯作者:
Long, FX
影响因子:
64.5
作者:
Gong, YQ;Slee, RB;Warman, ML
通讯作者:
Warman, ML
影响因子:
82.9
作者:
通讯作者:
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