Genetic and Epigenetic Defects at the GNAS Locus Lead to Distinct Patterns of Skeletal Growth but Similar Early-Onset Obesity

Patrick Hanna, Virginie Grybek, Guiomar Perez de Nanclares, Léa C. Tran, Luisa de Sanctis, Francesca Elli, Javier Errea, Bruno Francou, Peter Kamenicky, Léa Linglart, Arrate Pereda, Anya Rothenbuhler, Daniele Tessaris, Susanne Thiele, Alessia Usardi, Ashley H. Shoemaker, Marie Laure Kottler, Harald Jüppner, Giovanna Mantovani, Agnès Linglart

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Pseudohypoparathyroidism type 1A (PHP1A), pseudoPHP (PPHP), and PHP type 1B (PHP1B) are caused by maternal and paternal GNAS mutations and abnormal methylation at maternal GNAS promoter(s), respectively. Adult PHP1A patients are reportedly obese and short, whereas most PPHP patients are born small. In addition to parathyroid hormone (PTH) resistance, PHP1A and PHP1B patients may display early-onset obesity. Because early-onset and severe obesity and short stature are daily burdens for PHP1A patients, we aimed at improving knowledge on the contribution of the GNAS transcripts to fetal and postnatal growth and fat storage. Through an international collaboration, we collected growth and weight data from birth until adulthood for 306 PHP1A/PPHP and 220 PHP1B patients. PHP1A/PPHP patients were smaller at birth than healthy controls, especially PPHP (length Z-score: PHP1A –1.1 ± 1.8; PPHP –3.0 ± 1.5). Short stature is observed in 64% and 59% of adult PHP1A and PPHP patients. PHP1B patients displayed early postnatal overgrowth (height Z-score at 1 year: 2.2 ± 1.3 and 1.3 ± 1.5 in autosomal dominant and sporadic PHP1B) followed by a gradual decrease in growth velocity resulting in normal adult height (Z-score for both: –0.4 ± 1.1). Early-onset obesity characterizes GNAS alterations and is associated with significant overweight and obesity in adults (bodey mass index [BMI] Z-score: 1.4 ± 2.6, 2.1 ± 2.0, and 1.4 ± 1.9 in PPHP, PHP1A, and PHP1B, respectively), indicating that reduced Gsα expression is a contributing factor. The growth impairment in PHP1A/PPHP may be due to Gsα haploinsufficiency in the growth plates; the paternal XLαs transcript likely contributes to prenatal growth; for all disease variants, a reduced pubertal growth spurt may be due to accelerated growth plate closure. Consequently, early diagnosis and close follow-up is needed in patients with GNAS defects to screen and intervene in case of early-onset obesity and decreased growth velocity.

Original languageEnglish
Pages (from-to)1480-1488
Number of pages9
JournalJournal of Bone and Mineral Research
Volume33
Issue number8
DOIs
Publication statusPublished - Aug 1 2018

Fingerprint

Pseudohypoparathyroidism
Epigenomics
Obesity
Growth
Growth Plate
Mothers
Haploinsufficiency
Morbid Obesity
Fetal Development
Parathyroid Hormone
Contraception
Birth Weight
Methylation
Early Diagnosis
Fats

Keywords

  • EARLY-ONSET OBESITY
  • GNAS
  • GROWTH
  • PSEUDOHYPOPARATHYROIDISM
  • PSEUDOPSEUDOHYPOPARATHYROIDISM

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Orthopedics and Sports Medicine

Cite this

Hanna, P., Grybek, V., Perez de Nanclares, G., Tran, L. C., de Sanctis, L., Elli, F., ... Linglart, A. (2018). Genetic and Epigenetic Defects at the GNAS Locus Lead to Distinct Patterns of Skeletal Growth but Similar Early-Onset Obesity. Journal of Bone and Mineral Research, 33(8), 1480-1488. https://doi.org/10.1002/jbmr.3450

Genetic and Epigenetic Defects at the GNAS Locus Lead to Distinct Patterns of Skeletal Growth but Similar Early-Onset Obesity. / Hanna, Patrick; Grybek, Virginie; Perez de Nanclares, Guiomar; Tran, Léa C.; de Sanctis, Luisa; Elli, Francesca; Errea, Javier; Francou, Bruno; Kamenicky, Peter; Linglart, Léa; Pereda, Arrate; Rothenbuhler, Anya; Tessaris, Daniele; Thiele, Susanne; Usardi, Alessia; Shoemaker, Ashley H.; Kottler, Marie Laure; Jüppner, Harald; Mantovani, Giovanna; Linglart, Agnès.

In: Journal of Bone and Mineral Research, Vol. 33, No. 8, 01.08.2018, p. 1480-1488.

Research output: Contribution to journalArticle

Hanna, P, Grybek, V, Perez de Nanclares, G, Tran, LC, de Sanctis, L, Elli, F, Errea, J, Francou, B, Kamenicky, P, Linglart, L, Pereda, A, Rothenbuhler, A, Tessaris, D, Thiele, S, Usardi, A, Shoemaker, AH, Kottler, ML, Jüppner, H, Mantovani, G & Linglart, A 2018, 'Genetic and Epigenetic Defects at the GNAS Locus Lead to Distinct Patterns of Skeletal Growth but Similar Early-Onset Obesity', Journal of Bone and Mineral Research, vol. 33, no. 8, pp. 1480-1488. https://doi.org/10.1002/jbmr.3450
Hanna, Patrick ; Grybek, Virginie ; Perez de Nanclares, Guiomar ; Tran, Léa C. ; de Sanctis, Luisa ; Elli, Francesca ; Errea, Javier ; Francou, Bruno ; Kamenicky, Peter ; Linglart, Léa ; Pereda, Arrate ; Rothenbuhler, Anya ; Tessaris, Daniele ; Thiele, Susanne ; Usardi, Alessia ; Shoemaker, Ashley H. ; Kottler, Marie Laure ; Jüppner, Harald ; Mantovani, Giovanna ; Linglart, Agnès. / Genetic and Epigenetic Defects at the GNAS Locus Lead to Distinct Patterns of Skeletal Growth but Similar Early-Onset Obesity. In: Journal of Bone and Mineral Research. 2018 ; Vol. 33, No. 8. pp. 1480-1488.
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abstract = "Pseudohypoparathyroidism type 1A (PHP1A), pseudoPHP (PPHP), and PHP type 1B (PHP1B) are caused by maternal and paternal GNAS mutations and abnormal methylation at maternal GNAS promoter(s), respectively. Adult PHP1A patients are reportedly obese and short, whereas most PPHP patients are born small. In addition to parathyroid hormone (PTH) resistance, PHP1A and PHP1B patients may display early-onset obesity. Because early-onset and severe obesity and short stature are daily burdens for PHP1A patients, we aimed at improving knowledge on the contribution of the GNAS transcripts to fetal and postnatal growth and fat storage. Through an international collaboration, we collected growth and weight data from birth until adulthood for 306 PHP1A/PPHP and 220 PHP1B patients. PHP1A/PPHP patients were smaller at birth than healthy controls, especially PPHP (length Z-score: PHP1A –1.1 ± 1.8; PPHP –3.0 ± 1.5). Short stature is observed in 64{\%} and 59{\%} of adult PHP1A and PPHP patients. PHP1B patients displayed early postnatal overgrowth (height Z-score at 1 year: 2.2 ± 1.3 and 1.3 ± 1.5 in autosomal dominant and sporadic PHP1B) followed by a gradual decrease in growth velocity resulting in normal adult height (Z-score for both: –0.4 ± 1.1). Early-onset obesity characterizes GNAS alterations and is associated with significant overweight and obesity in adults (bodey mass index [BMI] Z-score: 1.4 ± 2.6, 2.1 ± 2.0, and 1.4 ± 1.9 in PPHP, PHP1A, and PHP1B, respectively), indicating that reduced Gsα expression is a contributing factor. The growth impairment in PHP1A/PPHP may be due to Gsα haploinsufficiency in the growth plates; the paternal XLαs transcript likely contributes to prenatal growth; for all disease variants, a reduced pubertal growth spurt may be due to accelerated growth plate closure. Consequently, early diagnosis and close follow-up is needed in patients with GNAS defects to screen and intervene in case of early-onset obesity and decreased growth velocity.",
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AU - Hanna, Patrick

AU - Grybek, Virginie

AU - Perez de Nanclares, Guiomar

AU - Tran, Léa C.

AU - de Sanctis, Luisa

AU - Elli, Francesca

AU - Errea, Javier

AU - Francou, Bruno

AU - Kamenicky, Peter

AU - Linglart, Léa

AU - Pereda, Arrate

AU - Rothenbuhler, Anya

AU - Tessaris, Daniele

AU - Thiele, Susanne

AU - Usardi, Alessia

AU - Shoemaker, Ashley H.

AU - Kottler, Marie Laure

AU - Jüppner, Harald

AU - Mantovani, Giovanna

AU - Linglart, Agnès

PY - 2018/8/1

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N2 - Pseudohypoparathyroidism type 1A (PHP1A), pseudoPHP (PPHP), and PHP type 1B (PHP1B) are caused by maternal and paternal GNAS mutations and abnormal methylation at maternal GNAS promoter(s), respectively. Adult PHP1A patients are reportedly obese and short, whereas most PPHP patients are born small. In addition to parathyroid hormone (PTH) resistance, PHP1A and PHP1B patients may display early-onset obesity. Because early-onset and severe obesity and short stature are daily burdens for PHP1A patients, we aimed at improving knowledge on the contribution of the GNAS transcripts to fetal and postnatal growth and fat storage. Through an international collaboration, we collected growth and weight data from birth until adulthood for 306 PHP1A/PPHP and 220 PHP1B patients. PHP1A/PPHP patients were smaller at birth than healthy controls, especially PPHP (length Z-score: PHP1A –1.1 ± 1.8; PPHP –3.0 ± 1.5). Short stature is observed in 64% and 59% of adult PHP1A and PPHP patients. PHP1B patients displayed early postnatal overgrowth (height Z-score at 1 year: 2.2 ± 1.3 and 1.3 ± 1.5 in autosomal dominant and sporadic PHP1B) followed by a gradual decrease in growth velocity resulting in normal adult height (Z-score for both: –0.4 ± 1.1). Early-onset obesity characterizes GNAS alterations and is associated with significant overweight and obesity in adults (bodey mass index [BMI] Z-score: 1.4 ± 2.6, 2.1 ± 2.0, and 1.4 ± 1.9 in PPHP, PHP1A, and PHP1B, respectively), indicating that reduced Gsα expression is a contributing factor. The growth impairment in PHP1A/PPHP may be due to Gsα haploinsufficiency in the growth plates; the paternal XLαs transcript likely contributes to prenatal growth; for all disease variants, a reduced pubertal growth spurt may be due to accelerated growth plate closure. Consequently, early diagnosis and close follow-up is needed in patients with GNAS defects to screen and intervene in case of early-onset obesity and decreased growth velocity.

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KW - PSEUDOHYPOPARATHYROIDISM

KW - PSEUDOPSEUDOHYPOPARATHYROIDISM

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