53 citations
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October 2003 in “Developmental Biology” Too much Sonic Hedgehog protein stops hair growth in embryos.
156 citations
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January 1989 in “Genes & Development” Keratin expression reflects cell organization and differentiation, not causes it.
130 citations
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24 citations
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November 2023 in “Nature” The extracellular matrix affects where tumors can start in the body.
Hedgehog signaling can create new hair follicles in adult skin but may increase cancer risk.