Indian hedgehog couples chondrogenesis to osteogenesis in endochondral bone development
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Indian hedgehog couples chondrogenesis to osteogenesis in endochondral bone development.
Vertebrate skeletogenesis requires a well-coordinated transition from chondrogenesis to osteogenesis. Hypertrophic chondrocytes in the growth plate play a pivotal role in this transition. Parathyroid hormone-related peptide (PTHrP), synthesized in the periarticular growth plate, regulates the site at which hypertrophy occurs. By comparing PTH/PTHrP receptor(-/-)/wild-type (PPR(-/-)/wild-type) c...
متن کاملIndian hedgehog (Ihh), one of the three mammalian hedgehog (Hh) proteins, coordinates proliferation and differentiation of chondrocytes during endochondral bone
Much of the vertebrate skeleton arises from a cartilage template, which subsequently undergoes endochondral bone formation (Erlebacher et al., 1995; Hinchcliffe and Johnson, 1990). At the earliest stage of this process, mesenchymal cells condense to form a cartilage anlage. Initially, all chondrocytes within the anlage proliferate. Thereafter, cells in the center of this structure exit the cell...
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Hedgehog (Hh) signaling has been implicated in the development of osteoblasts and osteoclasts whose balanced activities are critical for proper bone formation. Since many mouse mutants in the Hh pathway are embryonic lethal, questions on the exact effects of Hh signaling on osteogenesis remain. Using zebrafish larvae mutant in Indian Hedgehog, patched1, patched2 and suppressor of fused (dre), w...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 2001
ISSN: 0021-9738
DOI: 10.1172/jci11706