Cited by 64Adrenal Hormones and DisordersHormonal Regulation and HypertensionEstrogen and related hormone effects

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Liver receptor homologue-1 is expressed in the adrenal and can regulate transcription of 11 beta-hydroxylase

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Wang, ZN, Bassett, M, Rainey, WE·2001·Journal of Molecular Endocrinology

Abstract

Liver receptor homologue-1 (LRH-1, designated NR5A2) is a mammalian homologue of Drosophila fushi tarazu factor (dFTZ-F1) and structurally belongs to the orphan nuclear receptor superfamily. LRH-1 can recognize the DNA sequence 5'-AAGGTCA-3', the canonical recognition motif for steroidogenic factor 1 (SF-1). Herein, we hypothesized that LRH-1 might play a role in the regulation of human adrenal expression of steroidogenic enzymes. To test this hypothesis, LRH-1 expression in human adult and fetal adrenal glands was examined by RT-PCR analysis. The fetal and adult adrenal glands, as well as liver and pancreas, were observed to express LRH-1 mRNA using RT-PCR. The ability of LRH-1 to enhance transcription of the gene encoding human 11 beta- hydroxylase (hCYP11B1) was then examined using the H295R adrenal cell line. LRH-1 co-transfection with hCYP11B1 luciferase promoter constructs caused a 25-fold induction of luciferase activity. Furthermore, co-transfection of a hCYP11B1 reporter construct containing a mutation in the SF-1 binding cis-element abolished the stimulatory effect of both SF-1 and LRH-1. Electrophoretic mobility shift assay (EMSA) demonstrated that LRH-1 could bind to the SF-1 response element. Taken together, our data suggested that LRH-1 is expressed in the adrenal, and can substitute for SF-1 to enhance transcription of genes encoding certain of the steroid-metabolizing enzymes. A role for LRH-1 in the regulation of adrenal or gonadal steroid hormone production should be further studied.

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  • SF1/NR5A1 and LRH-1/NR5A2 both contribute to the relative expression of CYP11B1 and regulate the comparative expression of CYP11B1 vs. CYP11B2.

    “Orphan nuclear receptors play a critical role in CYP11B1 genetics, with SF1/NR5A1 and LRH-1/NR5A2 both contributing to the relative expression of CYP11B1 and regulating the comparative expression of CYP11B1 vs. CYP11B2 (73, 74).”

    From Adrenal Mitochondria and Steroidogenesis: From Individual Proteins to Functional Protein Assemblies (2016) · cites this paper as [74]

    The Results and Discussion report that both SF-1 and LRH-1 stimulated hCYP11B1 promoter activity in H295R cells. The paper does not establish that they regulate CYP11B1 expression relative to CYP11B2; the reported comparison is between the two receptors’ effects on CYP11B1, not between the two genes. Page numbers are unavailable in our copy. (LLM, conf=0.88)

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Metadata

Authors
Wang, Z., Bassett, M., & Rainey, W.
Affiliations
The University of Texas at Dallas (US)
Venue
Journal of Molecular Endocrinology
Published
2001-10-01
Volume
27
Issue
2
Pages
255-258
ISSN
  • 0952-5041 (ISSN-L)
  • 1479-6813
OpenAlex
W2054729369
Cited by
63
References
9
Citations by year
2024: 2 · 2021: 1 · 2020: 3 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 2 · 2015: 5 · 2014: 3 · 2013: 2 · 2012: 2
FWCI
3.85
Type
journal article
Language
en
Open access
Locations
  • Journal of Molecular Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Washington
  • University of Texas Southwestern Medical Center
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 43140)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal Regulation and Hypertension
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Estrogen and related hormone effects
Keywords
LRH-1, NR5A2, adrenal gland, 11β-hydroxylase, CYP11B1, steroidogenic factor 1, transcriptional regulation, steroidogenic enzymes, orphan nuclear receptor, adrenal steroidogenesis, fetal adrenal
MeSH terms
Adrenal Glands, Animals, Base Sequence, Binding Sites, Cell Line, DNA, DNA-Binding Proteins, Fetus, Humans, Luciferases, Mutation, RNA, Messenger, Steroid 11-beta-Hydroxylase, Transcription Factors, Transcription, Genetic, Transfection, Gene Expression Regulation, Enzymologic, Receptors, Cytoplasmic and Nuclear, Homeodomain Proteins, Fushi Tarazu Transcription Factors, Steroidogenic Factor 1

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