Cell type-specific expression of the pituitary transcription activator pit-1 in the human pituitary and pituitary adenomas.

Abstract excerpt

Pit-1 is a transcription factor that has been shown to be critical for pituitary-specific activation of the GH and PRL genes. In rodents and humans, differentiation and/or maintenance of somatotroph, lactotroph, and thyrotroph phenotypes are dependent on expression of a functional pit-1 gene. In rodents, Pit-1 protein is detectable in only these three cell types; however, pit-1 mRNA transcripts appear to be...

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