The present invention relates to improved compositions and methods for assaying the efficacy of novel drugs functioning either as agonists or antagonists at nuclear receptors. In particular, the invention provides transgenic non-human animals comprising a human steroid hormone receptor gene operably linked to a promoter which directs expression of the steroid hormone receptor gene in an epithelial cell of the non-human animals.

A invenção atual relaciona-se às composições e aos métodos melhorados para assaying o efficacy das drogas da novela que funcionam como os agonists ou os antagonistas nos receptors nucleares. No detalhe, a invenção fornece os animais non-human transgenic que compreendem um gene steroid humano do receptor do hormone ligado operably a um promoter que dirija a expressão do gene steroid do receptor do hormone em uma pilha epithelial dos animais non-human.

 
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