Cited by 183Adrenal Hormones and DisordersStress Responses and CortisolMetabolism and Genetic Disorders

Hereditary isolated glucocorticoid deficiency is associated with abnormalities of the adrenocorticotropin receptor gene

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Tsigos, C, Arai, K, Hung, W, Chrousos, G P·1993·Journal of Clinical Investigation

Abstract

Isolated glucocorticoid deficiency (IGD) is an autosomal recessive disorder characterized by progressive primary adrenal insufficiency, without mineralocorticoid deficiency. The cDNA and gene of the human ACTH receptor were recently cloned. The gene encodes a 297-amino acid protein that belongs to the G protein-coupled superfamily of membrane receptors. We hypothesized that the ACTH receptor gene might be defective in IGD. To examine this, we studied its genomic structure by PCR and direct sequencing in a 5-yr-old proband with the disease, his parents, and grandparents. The proband was a compound heterozygote for two different point mutations, one in each allele: (a) a substitution (C-->T), also found in one allele of the mother and maternal grandmother, which introduced a premature stop codon (TGA) at position 201 of the protein; this mutant receptor lacks its entire carboxy-terminal third and, if expressed, should be unable to transduce the signal; and (b) a substitution (C-->G), also found in one of the paternal alleles, which changed neutral serine120 in the apolar third transmembrane domain of the receptor to a positively charged arginine, probably disrupting the ligand-binding site. Standard ovine corticotropin releasing hormone (oCRH) test in the heterozygote parents and maternal grandmother revealed exaggerated and prolonged ACTH responses, suggestive of subclinical resistance to ACTH. We conclude that IGD in this family appears to be due to defects of the ACTH receptor gene. The oCRH test appears to be useful in ascertaining heterozygosity in this syndrome.

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  • Patients with inactivating mutations in the ACTH receptor (MC2R) or the LH/hCG receptor make negligible steroids from the affected glands.

    “Patients with inactivating mutations in the ACTH receptor (MC2R) (159) or the LH/hCG receptor (160) make negligible steroids from the affected glands.”

    From The Molecular Biology, Biochemistry, and Physiology of Human Steroidogenesis and Its Disorders (2011) · cites this paper as [159]

    The Methods report that the patient with ACTH-receptor mutations had serum cortisol below 1 μg/dl and no cortisol increase after ACTH injection. But aldosterone was normal, so the paper supports negligible glucocorticoid production, not negligible production of steroids generally. The LH/hCG-receptor clause is attached to a different citation and is not assessed here. (LLM, conf=0.88)

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  1. [19]19. Strader, C. D., I. S. Sigal, R. B. Register, M. R. Candelore, E. Rands, and R. A. F. Dixon. 1987. Identification ofresidues required for ligand binding to the , adrenergic receptor. Proc. Natl. Acad. Sci. USA. 84:4384-4388.

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Authors
Tsigos, C., Arai, K., Hung, W., & Chrousos, G. P.
Affiliations
National Institutes of Health (US)
Venue
Journal of Clinical Investigation
Published
1993-11-01
Volume
92
Issue
5
Pages
2458-2461
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2055723678
Cited by
182
References
21
Citations by year
2026: 1 · 2024: 2 · 2023: 1 · 2022: 6 · 2021: 2 · 2020: 1 · 2019: 3 · 2018: 3 · 2017: 4 · 2016: 5 · 2015: 5 · 2014: 7 · 2013: 3 · 2012: 3
FWCI
7.21
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
Keywords
Addison's disease, compound heterozygosity, G protein-coupled receptors, premature stop codon, ACTH resistance, autosomal recessive inheritance
MeSH terms
Adrenocorticotropic Hormone, Adult, Amino Acid Sequence, Base Sequence, Child, Preschool, Female, Genes, Recessive, Glucocorticoids, Heterozygote, Homozygote, Humans, Hydrocortisone, Lipid Metabolism, Inborn Errors, Male, Molecular Sequence Data, Pedigree, Genome, Human, Point Mutation, Sequence Analysis, DNA, Receptors, Corticotropin

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