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A cell-specific nuclear receptor regulates the steroid hydroxylases
1Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA.
Steroids
|January 1, 1995
Summary
Steroidogenic factor 1 (SF-1) is crucial for regulating genes in steroid hydroxylases. Gene disruption experiments confirm SF-1 is essential for adrenal and gonad development and function.
Area of Science:
- Endocrinology
- Molecular Biology
- Developmental Biology
Background:
- The gene regulation of cytochrome P450 steroid hydroxylases is critical for steroidogenesis.
- An orphan nuclear receptor, steroidogenic factor 1 (SF-1), has emerged as a key regulator.
- SF-1 binds to shared promoter elements, mediating coordinate expression of steroid hydroxylases in steroidogenic cells.
Purpose of the Study:
- To investigate the role of SF-1 in the development and function of steroidogenic tissues.
- To analyze SF-1 expression during mouse embryonic development.
- To determine the necessity of SF-1 for adrenal and gonad development.
Main Methods:
- Analysis of SF-1 expression during mouse embryonic development.
- Gene disruption experiments to assess the function of the SF-1 gene.
Main Results:
- SF-1 expression was detected from the earliest stages of steroidogenic tissue organogenesis.
- SF-1 expression suggests a link between the factor and steroidogenic cell differentiation.
- Gene disruption of SF-1 proved essential for the development of adrenal glands and gonads.
Conclusions:
- SF-1 plays an indispensable role in the development of the adrenal glands and gonads.
- The findings establish the essential function of SF-1 in the development and function of primary steroidogenic tissues.