Article
Stage-Specific Effects ofSonic HedgehogExpression in the Epidermis
1 Sept 1998
Abstract excerpt
Sonic hedgehog (Shh) is expressed in the ectoderm of the forming hair follicle and feather bud during normal development. However, inappropriate activation of the Shh signal transduction cascade in human epidermis can cause basal cell carcinoma. Here we show that during normal development of avian skin, Shh is first expressed only after the responsiveness to this protein has been suppressed in most of the...
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