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DAX-1 (NR0B1) and steroidogenic factor-1 (SF-1, NR5A1) in human disease

Jenifer P Suntharalingham1, Federica Buonocore1, Andrew J Duncan1

  • 1Genetics & Genomic Medicine, UCL Institute of Child Health, University College London, London, UK.

Best Practice & Research. Clinical Endocrinology & Metabolism
|August 26, 2015
PubMed

Insights

Adrenal hypoplasia congenita and disorders of sex development are linked to mutations in DAX-1 (NR0B1) and SF-1 (NR5A1) nuclear receptors. Early diagnosis is crucial for managing endocrine and reproductive health.

Area of Science:

  • Endocrinology
  • Genetics
  • Developmental Biology

Background:

  • DAX-1 (NR0B1) and SF-1 (NR5A1) are critical nuclear receptors for adrenal and reproductive development.
  • DAX-1 dysfunction causes X-linked adrenal hypoplasia congenita, presenting with adrenal insufficiency and hypogonadism.
  • SF-1 variants are less commonly linked to adrenal insufficiency but frequently cause 46,XY disorders of sex development and infertility.

Purpose of the Study:

  • To highlight the roles of DAX-1 and SF-1 in human development.
  • To emphasize the clinical spectrum and importance of diagnosing DAX-1 and SF-1 related disorders.
  • To underscore the need for genetic counseling and informed support for affected individuals and families.

Main Methods:

  • Review of clinical phenotypes associated with DAX-1 and SF-1 gene variants.
  • Analysis of the impact of these variants on adrenal and reproductive development.
  • Correlation of genetic findings with clinical presentations.

Main Results:

  • Loss of DAX-1 function leads to X-linked adrenal hypoplasia congenita with adrenal insufficiency and hypogonadotropic hypogonadism.
  • SF-1 disruption rarely causes adrenal insufficiency but commonly results in 46,XY DSD, hypospadias, infertility, or primary ovarian insufficiency.
  • Increasing recognition of late-onset and variant phenotypes for both conditions.

Conclusions:

  • Accurate diagnosis of DAX-1 and SF-1 associated conditions is vital for patient management.
  • Diagnosis facilitates long-term monitoring of endocrine and reproductive function.
  • Genetic counseling and psychosocial support are essential for affected families.
Keywords:
46,XY disorders of sex developmentAddison diseaseDAX-1SF-1X-linked adrenal hypoplasia congenitahypogonadotropic hypogonadismhypospadiasinfertilityprimary adrenal insufficiencyprimary ovarian insufficiency

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