Erk1 positively regulates osteoclast differentiation and bone resorptive activity.
Erk1 positively regulates osteoclast differentiation and bone resorptive activity.
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DOI:
10.1371/journal.pone.0024780
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Yang FC
中科院分区:
文献类型:
--
作者:
He Y;Staser K;Rhodes SD;Liu Y;Wu X;Park SJ;Yuan J;Yang X;Li X;Jiang L;Chen S;Yang FC
The extracellular signal-regulated kinases (ERK1 and 2) are widely-expressed and they modulate proliferation, survival, differentiation, and protein synthesis in multiple cell lineages. Altered ERK1/2 signaling is found in several genetic diseases with skeletal phenotypes, including Noonan syndrome, Neurofibromatosis type 1, and Cardio-facio-cutaneous syndrome, suggesting that MEK-ERK signals regulate human skeletal development. Here, we examine the consequence of Erk1 and Erk2 disruption in multiple functions of osteoclasts, specialized macrophage/monocyte lineage-derived cells that resorb bone. We demonstrate that Erk1 positively regulates osteoclast development and bone resorptive activity, as genetic disruption of Erk1 reduced osteoclast progenitor cell numbers, compromised pit formation, and diminished M-CSF-mediated adhesion and migration. Moreover, WT mice reconstituted long-term with Erk1−/− bone marrow mononuclear cells (BMMNCs) demonstrated increased bone mineral density as compared to recipients transplanted with WT and Erk2−/− BMMNCs, implicating marrow autonomous, Erk1-dependent osteoclast function. These data demonstrate Erk1 plays an important role in osteoclast functions while providing rationale for the development of Erk1-specific inhibitors for experimental investigation and/or therapeutic modulation of aberrant osteoclast function.
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影响因子:
5.3
作者:
Matsushita, Takehiko;Chan, Yuk Yu;Murakami, Shunichi
通讯作者:
Murakami, Shunichi
影响因子:
20.3
作者:
Munugalavadla, V;Borneo, J;Kapur, R
通讯作者:
Kapur, R
影响因子:
11.2
作者:
Bourcier, C;Jacquel, A;Pagès, G
通讯作者:
Pagès, G
影响因子:
11.4
作者:
LEEVERS, SJ;MARSHALL, CJ
通讯作者:
MARSHALL, CJ
DOI:
10.4049/jimmunol.0900634
发表时间:
2010-06-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Bates ME;Sedgwick JB;Zhu Y;Liu LY;Heuser RG;Jarjour NN;Kita H;Bertics PJ
通讯作者:
Bertics PJ