Cited by 59Hypothalamic control of reproductive hormonesGrowth Hormone and Insulin-like Growth FactorsReproductive Biology and Fertility

GNRHR Mutations in a Woman with Idiopathic Hypogonadotropic Hypogonadism Highlight the Differential Sensitivity of Luteinizing Hormone and Follicle-Stimulating Hormone to Gonadotropin-Releasing Hormone

Meysing, Astrid U., Kanasaki, Haruhiko, Bedecarrats, Gregoy Y., Acierno, James S., Conn, P. Michael, Martin, Kathryn A., Seminara, Stephanie B., Hall, Janet E. +2 more·2004·The Journal of Clinical Endocrinology & Metabolism

Abstract

Mutations in the GnRH receptor gene (GNRHR) are a cause of idiopathic hypogonadotropic hypogonadism. We describe a normosmic female subject with congenital idiopathic hypogonadotropic hypogonadism in whom treatment with pulsatile GnRH resulted in an unusual response. The subject not only required an increased dose of pulsatile GnRH for ovarian follicular development, but LH secretion did not increase appropriately, estradiol levels remained low, and she did not ovulate spontaneously. Sequencing of the GNRHR coding sequence revealed compound heterozygous mutations leading to amino acid substitutions [N10K+Q11K] and P320L. The introduction of the P320L mutation into the GnRH receptor led to failure of detectable ligand binding and failure of stimulation of inositol phosphate production and gonadotropin subunit gene promoter activity in response to GnRH in transiently transfected cells. The [N10K+Q11K] mutation resulted in reduced binding of a GnRH agonist to 25% of the wild-type receptor. In addition, the EC(50) value for GnRH stimulation of inositol phosphate production was significantly increased, and the dose-response curves for stimulation of alpha gonadotropin subunit, LHbeta, and FSHbeta gene transcription by GnRH were similarly shifted to the right. Stimulation of FSHbeta gene transcription was more sensitive to GnRH than LHbeta for both wild-type and [N10K+Q11K] GnRH receptors, resulting in a greater loss of LHbeta stimulation than FSHbeta by the [N10K+Q11K] mutant at any given submaximal GnRH concentration. We propose that the mutations in the GnRH receptor result in a rightward shift of the dose-response curves of gonadotropin responses to pulsatile GnRH in the subject and unmask the differential sensitivities of LH and FSH to GnRH, resulting in low LH and estradiol levels despite appropriate FSH secretion and follicular growth.

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Crossref · 10.1210/jc.2003-031808

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Authors
Meysing, A. U., Kanasaki, H., Bedecarrats, G. Y., Acierno, J. S., Conn, P. M., Martin, K. A., Seminara, S. B., Hall, J. E., Crowley, W. F., & Kaiser, U. B.
Affiliations
  • Harvard University (US)
  • Brigham and Women's Hospital (US)
  • Oregon National Primate Research Center (US)
Corresponding author
Meysing, Astrid U.
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2004-07
Volume
89
Issue
7
Pages
3189-3198
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W2018909435
Cited by
58
References
40
Citations by year
2026: 1 · 2024: 3 · 2023: 1 · 2021: 4 · 2019: 4 · 2018: 3 · 2017: 2 · 2016: 1 · 2015: 2 · 2014: 4 · 2013: 2 · 2012: 6
FWCI
4.22
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD19899, R01HD015788, R01HD043341, U54HD029164, U564 HD 28138, U54HD028138)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Biology and Fertility
Keywords
GnRH receptor, idiopathic hypogonadotropic hypogonadism, pulsatile GnRH therapy, luteinizing hormone, follicle-stimulating hormone, compound heterozygosity, inositol phosphate formation, dose-response shift, ovarian follicle development, female infertility, estradiol deficiency
MeSH terms
Adult, Amino Acid Sequence, Base Sequence, Cell Membrane, Cells, Cultured, DNA, Dose-Response Relationship, Drug, Estradiol, Female, Follicle Stimulating Hormone, Heterozygote, Humans, Hypogonadism, Inositol Phosphates, Luteinizing Hormone, Gonadotropin-Releasing Hormone, Mutation, Receptors, LHRH, Case-Control Studies, Amino Acid Substitution, Luteinizing Hormone, beta Subunit, Follicle Stimulating Hormone, beta Subunit

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