Abstract:
:Steroidogenic Factor 1 (SF-1, Ad4bp, NR5A1) is a nuclear receptor expressed mainly in the adrenals and gonads. It activates the transcription of genes in steroidogenesis, reproduction, and energy metabolism. In addition, it also regulates the growth and differentiation of adrenogonadal primodial cells. SF-1 resides in the nucleus and the centrosome. SF-1 moves dynamically in the nucleus, and SF-1 location and activity are dynamically regulated by post-translational modifications. In the centrosome, SF-1 maintains genomic integrity by controlling centrosome homeostasis. SF-1 prevents centrosome amplification by restricting aberrant activation of centrosomal DNA-PK. Upon SF-1 removal, DNA-PK is activated and centrosomes are amplified. This leads to genomic instability and cell growth defects. These data indicate that SF-1 at both the nucleus and the centrosome contributes to cell growth control, but the mechanisms of SF-1 action in different locations are different.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Wang CY,Chen WY,Lai PY,Chung BCdoi
10.1016/j.mce.2012.11.019subject
Has Abstractpub_date
2013-05-22 00:00:00pages
148-53issue
1-2eissn
0303-7207issn
1872-8057pii
S0303-7207(12)00511-4journal_volume
371pub_type
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