Article (Scientific journals)
High prevalence of AIP gene mutations following focused screening in young patients with sporadic pituitary macroadenomas.
Tichomirowa, Maria A; Barlier, Anne; Daly, Adrian et al.
2011In European Journal of Endocrinology, 165 (4), p. 509-15
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Keywords :
Adult; DNA/genetics; Female; Genetic Testing; Humans; Intracellular Signaling Peptides and Proteins/genetics; Magnetic Resonance Imaging; Male; Mutation/physiology; Pituitary Neoplasms/epidemiology/genetics/pathology; Polymorphism, Single Nucleotide; Prospective Studies; Young Adult
Abstract :
[en] BACKGROUND: Aryl hydrocarbon receptor interacting protein (AIP) mutations (AIPmut) cause aggressive pituitary adenomas in young patients, usually in the setting of familial isolated pituitary adenomas. The prevalence of AIPmut among sporadic pituitary adenoma patients appears to be low; studies have not addressed prevalence in the most clinically relevant population. Hence, we undertook an international, multicenter, prospective genetic, and clinical analysis at 21 tertiary referral endocrine departments. METHODS: We included 163 sporadic pituitary macroadenoma patients irrespective of clinical phenotype diagnosed at <30 years of age. RESULTS: Overall, 19/163 (11.7%) patients had germline AIPmut; a further nine patients had sequence changes of uncertain significance or polymorphisms. AIPmut were identified in 8/39 (20.5%) pediatric patients. Ten AIPmut were identified in 11/83 (13.3%) sporadic somatotropinoma patients, in 7/61 (11.5%) prolactinoma patients, and in 1/16 non-functioning pituitary adenoma patients. Large genetic deletions were not seen using multiplex ligation-dependent probe amplification. Familial screening was possible in the relatives of seven patients with AIPmut and carriers were found in six of the seven families. In total, pituitary adenomas were diagnosed in 2/21 AIPmut-screened carriers; both had asymptomatic microadenomas. CONCLUSION: Germline AIPmut occur in 11.7% of patients <30 years with sporadic pituitary macroadenomas and in 20.5% of pediatric patients. AIPmut mutation testing in this population should be considered in order to optimize clinical genetic investigation and management.
Disciplines :
Genetics & genetic processes
Endocrinology, metabolism & nutrition
Author, co-author :
Tichomirowa, Maria A 
Barlier, Anne 
Daly, Adrian   ;  Université de Liège - ULiège > Département des sciences cliniques > Endocrinologie
Jaffrain-Rea, Marie*-Lise
Ronchi, Cristina
Yaneva, Maria
Urban, Jonathan D
PETROSSIANS, Patrick  ;  Centre Hospitalier Universitaire de Liège - CHU > Endocrinologie clinique
Elenkova, Atanaska
Tabarin, Antoine
Desailloud, Rachel
Maiter, Dominique
Schurmeyer, Thomas
Cozzi, Renato
Theodoropoulou, Marily
Sievers, Caroline
Bernabeu, Ignacio
Naves, Luciana Ansaneli
Chabre, Olivier
Montanana, Carmen Fajardo
Hana, Vaclav
Halaby, Georges
Delemer, Brigitte
Aizpun, Jose Ignacio Labarta
Sonnet, Emmanuel
Longas, Angel Ferrandez
HAGELSTEIN, Marie-Thérèse ;  Centre Hospitalier Universitaire de Liège - CHU > Endocrinologie clinique
Caron, Philippe
Stalla, Gunter K
Bours, Vincent ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > GIGA-R : Génétique humaine
Zacharieva, Sabina
Spada, Anna
Brue, Thierry
Beckers, Albert ;  Université de Liège - ULiège > Département des sciences cliniques > Endocrinologie
More authors (24 more) Less
 These authors have contributed equally to this work.
Language :
English
Title :
High prevalence of AIP gene mutations following focused screening in young patients with sporadic pituitary macroadenomas.
Publication date :
2011
Journal title :
European Journal of Endocrinology
ISSN :
0804-4643
eISSN :
1479-683X
Publisher :
BioScientifica Ltd, Bristol, United Kingdom
Volume :
165
Issue :
4
Pages :
509-15
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 September 2011

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