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1.5. Imprinted Dlk1 dosage as a size determinant of the mammalian pituitary gland

Scagliotti V. , Vignola M.L. , Willis T. , Howard M. , Marinelli E. , Gaston-Massuet C.

Brief Summary: This study identifies the role of the Dlk1 gene dosage in controlling the size of the pituitary gland. Dlk1 is an imprinted geneexpression is based on parental originwhich plays a critical role in determining pituitary gland size.The authors investigated how varying the dosage of Dlk1 affects pituitary size using genetically modified mice. Elegantly both, loss-of-function and overexpression of Dlk...

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ey0019.1-12 | Clinical Papers | ESPEYB19

1.12. Dysgenesis and Dysfunction of the Pancreas and Pituitary Due to FOXA2 Gene Defects

SB Kaygusuz , Ates E Arslan , ML Vignola , B Volkan , BB Geckinli , S Turan , A Bereket , C Gaston-Massuet , T Guran

J Clin Endocrinol Metab. 2021, 106(10):e4142-e4154. doi: 10.1210/clinem/dgab352. PMID: 33999151.Brief Summary: The authors show that patients with hypopituitarism and FOXA2 gene defects also need screening for dysfunction of the pancreas.The Forkhead box A2 transcription factor (FOXA2) is important for normal development of the central nervous system, i...

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ey0015.2-4 | Mutations in the FOXA2 gene link beta cell dysfunction with Hypopituitarism | ESPEYB15

2.4 Novel FOXA2 mutation causes Hyperinsulinism, Hypopituitarism with Craniofacial and Endoderm-derived organ abnormalities

D Giri , ML Vignola , A Gualtieri , V Scagliotti , P McNamara , M Peak , M Didi , C Gaston-Massuet , S Senniappan

To read the full abstract: Hum Mol Genet. 2017 Nov 15;26(22):4315-4326These two papers describe the association of heterozygous FOXA2 mutations with hypopituitarism and hyperinsulinism. The forkhead/winged helix transcription factor Foxa2 is a major upstream regulator of Pdx1, a transcription factor necessary for pancreatic development and also plays a role in the developmental biology of the pituit...

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ey0018.1-7 | Development/Ontogeny | ESPEYB18

1.7. Activating mutations in BRAF disrupt the hypothalamo-pituitary axis leading to hypopituitarism in mice and humans

A Gualtieri , N Kyprianou , LC Gregory , ML Vignola , JG Nicholson , R Tan , SI Inoue , V Scagliotti , P Casado , J Blackburn , F Abollo-Jimenez , E Marinelli , REJ Besser , W Hogler , I Karen Temple , JH Davies , A Gagunashvili , ICAF Robinson , SA Camper , SW Davis , PR Cutillas , EF Gevers , Y Aoki , MT Dattani , C Gaston-Massuet

Nat Commun. 2021 Apr 1;12(1):2028. doi: 10.1038/s41467-021-21712-4. PMID: 33795686.The authors describe 5 patients with Cardio-Facio-Cutaneous (CFC) syndrome with features of septo−optic dysplasia (SOD), and GH/IGF−1 deficiency of variable degree. All were identified to carry a gain−of−function mutation in BRAF.RASopathies encompass Noonan ...

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ESPE Yearbook of Paediatric Endocrinology

1.5. Imprinted Dlk1 dosage as a size determinant of the mammalian pituitary gland

1.12. Dysgenesis and Dysfunction of the Pancreas and Pituitary Due to FOXA2 Gene Defects

2.4 Novel FOXA2 mutation causes Hyperinsulinism, Hypopituitarism with Craniofacial and Endoderm-derived organ abnormalities

1.7. Activating mutations in BRAF disrupt the hypothalamo-pituitary axis leading to hypopituitarism in mice and humans

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