Sonic Hedgehog Opposes Epithelial Cell Cycle Arrest

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Sonic Hedgehog Opposes Epithelial Cell Cycle Arrest

Stratified epithelium displays an equilibrium between proliferation and cell cycle arrest, a balance that is disrupted in basal cell carcinoma (BCC). Sonic hedgehog (Shh) pathway activation appears sufficient to induce BCC, however, the way it does so is unknown. Shh-induced epidermal hyperplasia is accompanied by continued cell proliferation in normally growth arrested suprabasal cells in vivo...

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Are there related proteins? Lots. In mammals, Sonic is related to two other hedgehogs: Indian and Desert. When expressed appropriately, the three proteins can substitute for one another but they do have unique functions: Desert hedgehog is needed for spermatogenesis and Indian hedgehog regulates cartilage differentiation. In the zebrafish, Sonic is related to Tiggywinkle hedgehog — which is tho...

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The development of basal cell carcinoma, the commonest human cancer in fair skinned populations, is clearly associated with constitutive activation of sonic hedgehog signaling. Insight into the genesis of BCC came from the identification of germline mutations of the tumor suppressor gene, PATCHED, a key regulatory component of hedgehog signaling in the nevoid basal cell carcinoma syndrome. Anal...

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Epithelial heparan sulfate regulates Sonic Hedgehog signaling in lung development

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ژورنال

عنوان ژورنال: Journal of Cell Biology

سال: 1999

ISSN: 0021-9525,1540-8140

DOI: 10.1083/jcb.147.1.71