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Genetic background determines if Stat5b suppresses or enhances murine hepatocarcinogenesis.


ABSTRACT: Murine hepatocarcinogenesis requires growth hormone (GH). To determine if the GH-responsive transcription factor STAT5b (signal transducer and activator of transcription 5b) is also required, we compared the hepatic gene expression profiles of global Stat5b null mice to cancer-resistant mice mutant in the GH pathway-GH-deficient little and androgen receptor-null Tfm males. We found a high degree of overlap among Tfm, little, and Stat5b null males. The liver cancer susceptibility of global Stat5b null mice was assessed on three distinct genetic backgrounds: BALB/cJ (BALB), C57BL/6J (B6), and C3H/HeJ (C3H). The effect of Stat5b on hepatocarcinogenesis depended on the genetic background. B6 Stat5b null congenic males and females developed 2.4 times as many tumors as wild-type (WT) controls (P?

SUBMITTER: Oberley CC 

PROVIDER: S-EPMC4254363 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature

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Genetic background determines if Stat5b suppresses or enhances murine hepatocarcinogenesis.

Oberley Christopher C CC   Bilger Andrea A   Drinkwater Norman R NR  

Molecular carcinogenesis 20140517 10


Murine hepatocarcinogenesis requires growth hormone (GH). To determine if the GH-responsive transcription factor STAT5b (signal transducer and activator of transcription 5b) is also required, we compared the hepatic gene expression profiles of global Stat5b null mice to cancer-resistant mice mutant in the GH pathway-GH-deficient little and androgen receptor-null Tfm males. We found a high degree of overlap among Tfm, little, and Stat5b null males. The liver cancer susceptibility of global Stat5b  ...[more]

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