title: The vanishing nucleus.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002467:Cell Nucleus; D006801:Humans; D007633:Keratins / Q000378:metabolism; D051381:Rats; D012867:Skin / Q000166:cytology* / Q000254:growth & development / Q000378:metabolism
chemical_list: D007633:Keratins