Hedgehog signaling in adult bone and cartilage homeostasis
Hedgehog signaling in adult bone and cartilage homeostasis
批准号:
8149450
负责人:
Yingzi Yang
金额:
$37.65万
依托单位国家:
美国
项目类别:
财政年份:
--
资助国家:
美国
项目状态:
未结题
起止时间:
至
中文摘要
Hedgehog(HH)信号是软骨内成骨过程中间充质祖细胞分化为成骨细胞所必需的。然而,HH信号在成骨细胞分化过程中的作用仍有待阐明。此外,HH信号也是控制软骨细胞增殖和肥大所必需的。在过去的一年里,我们发现在出生后的骨骼中,HH信号的活动必须受到严格的调控。骨骼中HH信号的异常激活会导致肿瘤样病变。
英文摘要
Hedgehog (Hh) signaling is required for the differentiation of mesenchymal progenitors into osteoblasts during endochondral bone formation. However, the role of Hh signaling in differentiated osteoblasts during adult bone homeostasis remains to be elucidated. In addition, Hh signaling is also required to control chondrocyte proliferation and hypertrophy. In the past year we found that in the postnatal bone, Hh signaling activity has to be tightly regulated. Abnormal activation of Hh signaling in the bone leads to tumor-like lesions.
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