PMID- 24997771 OWN - NLM STAT- MEDLINE DCOM- 20150410 LR - 20161031 IS - 2213-3941 (Electronic) IS - 0003-4266 (Linking) VI - 75 IP - 3 DP - 2014 Jul TI - p.Ala541Thr variant of MEN1 gene: a non deleterious polymorphism or a pathogenic mutation? PG - 133-40 LID - S0003-4266(14)00069-9 [pii] LID - 10.1016/j.ando.2014.05.003 [doi] AB - CONTEXT: Multiple Endocrine Neoplasia Type 1 (MEN1) is an autosomal dominant inherited syndrome, related to mutations in the MEN1 gene. Controversial data suggest that the nonsynonymous p.Ala541Thr variant, usually considered as a non-pathogenic polymorphism, may be associated with an increased risk of MEN1-related lesions in carriers. OBJECTIVE: The aim of this study was to evaluate the pathogenic influence of the p.Ala541Thr variant on clinical and functional outcomes. PATIENTS AND METHODS: We analysed a series of 55 index patients carrying the p.Ala541Thr variant. Their clinical profile was compared to that of 117 MEN1 patients. The biological impact of the p.Ala541Thr variant on cell growth was additionally investigated on menin-deficient Leydig cell tumour (LCT)10 cells generated from Men1+/Men1- heterozygous knock-out mice, and compared with wild type (WT). RESULTS: The mean age at first appearance of endocrine lesions was similar in both p.Ala541Thr carriers and MEN1 patients, but no p.Ala541Thr patient had more than one cardinal MEN1 lesion at initial diagnosis. A second MEN1 lesion was diagnosed in 13% of MEN1 patients and in 7% of p.Ala541Thr carriers in the year following preliminary diagnosis. Functional studies on LCT10 cells showed that overexpression of the p.Ala541Thr variant did not inhibit cell growth, which is in direct contrast to results obtained from investigation of WT menin protein. CONCLUSION: Taken together, these data raise the question of a potential pathogenicity of the p.Ala541Thr missense variant of menin that commonly occurs within the general population. Additional studies are required to investigate whether it may be involved in a low-penetrance MEN1 phenotype. CI - Copyright (c) 2014 Elsevier Masson SAS. All rights reserved. FAU - Nozieres, Cecile AU - Nozieres C AD - Federation d'endocrinologie du Pole Lyon-Est, universite Lyon 1, groupement hospitalier Est, hospices civils de Lyon, 59, boulevard Pinel, 69677 Bron cedex, France; UMR 5201 genetique, signalisation et cancer, centre Leon-Berard, 69008 Lyon, France. Electronic address: cnozieres@yahoo.fr. FAU - Zhang, Chang-Xian AU - Zhang CX AD - UMR 5201 genetique, signalisation et cancer, centre Leon-Berard, 69008 Lyon, France. FAU - Buffet, Alexandre AU - Buffet A AD - Service de genetique, hopital europeen Georges-Pompidou, Assistance publique-Hopitaux de Paris, 75015 Paris, France; Faculte de medecine, universite Paris-Descartes, Sorbonne Paris-Cite, 75006 Paris, France; Inserm, UMR970, Paris cardiovascular research center, 75015 Paris, France. FAU - Dupasquier, Stephanie AU - Dupasquier S AD - Laboratoire de genetique moleculaire, hopital Edouard-Herriot, batiment B7, 69347 Lyon cedex 03, France. FAU - Vargas-Poussou, Rosa AU - Vargas-Poussou R AD - Service de genetique, hopital europeen Georges-Pompidou, Assistance publique-Hopitaux de Paris, 75015 Paris, France; Faculte de medecine, universite Paris-Descartes, Sorbonne Paris-Cite, 75006 Paris, France; Inserm, UMR970, Paris cardiovascular research center, 75015 Paris, France. FAU - Guillaud-Bataille, Marine AU - Guillaud-Bataille M AD - Laboratoire d'oncogenetique, hopital Cochin, 75679 Paris cedex 14, France. FAU - Cordier-Bussat, Martine AU - Cordier-Bussat M AD - Inserm U 865, universite Claude-Bernard-Lyon 1, 7-11, rue Guillaume-Paradin, 69372 Lyon cedex 08, France. FAU - Ruszniewski, Philippe AU - Ruszniewski P AD - Service de gastro-enterologie, hopital Beaujon, 100, boulevard du General-Leclerc, 92110 Clichy, France. FAU - Christin-Maitre, Sophie AU - Christin-Maitre S AD - Service d'endocrinologie, faculte de medecine, universite Paris VI, hopital Saint-Antoine, Assistance publique-Hopitaux de Paris, 184, rue du Faubourg Saint-Antoine, 75571 Paris cedex 12, France. FAU - Murat, Arnaud AU - Murat A AD - Clinique endocrinologie, maladies metaboliques et nutrition, hopital de l'Hotel-Dieu, CHU de Nantes, place Alexis-Ricordeau, BP 100, 44093 Nantes cedex 1, France. FAU - Groussin, Lionel AU - Groussin L AD - Service d'endocrinologie et maladies metaboliques, faculte de medecine, universite Paris-Descartes, hopital Cochin, Assistance publique-Hopitaux de Paris, 75679 Paris cedex 14, France. FAU - Vezzosi, Delphine AU - Vezzosi D AD - Service d'endocrinologie, maladies metaboliques et nutrition, hopital Larrey, 31059 Toulouse cedex, France. FAU - Cardot-Bauters, Catherine AU - Cardot-Bauters C AD - Clinique Marc-Linquette, 59037 Lille, France. FAU - Hervieu, Valerie AU - Hervieu V AD - Service d'anatomo-pathologie, hopital Edouard-Herriot, place d'Arsonval, 69003 Lyon, France. FAU - Joly, Marie-Odile AU - Joly MO AD - Service d'anatomo-pathologie, hopital Edouard-Herriot, place d'Arsonval, 69003 Lyon, France. FAU - Giraud, Sophie AU - Giraud S AD - UMR 5201 genetique, signalisation et cancer, centre Leon-Berard, 69008 Lyon, France. FAU - Odou, Marie-Francoise AU - Odou MF AD - Service de genetique moleculaire, pole de pathologie biologie, Eurasante, CHRU de Lille, 59000 Lille, France. FAU - Gimenez-Roqueplo, Anne-Paule AU - Gimenez-Roqueplo AP AD - Service de genetique, hopital europeen Georges-Pompidou, Assistance publique-Hopitaux de Paris, 75015 Paris, France; Faculte de medecine, universite Paris-Descartes, Sorbonne Paris-Cite, 75006 Paris, France; Inserm, UMR970, Paris cardiovascular research center, 75015 Paris, France. FAU - Goudet, Pierre AU - Goudet P AD - Service de chirurgie endocrinienne, hopital du Bocage, 2, boulevard de Lattre-de-Tassigny, 21034 Dijon, France. FAU - Borson-Chazot, Francoise AU - Borson-Chazot F AD - Federation d'endocrinologie du Pole Lyon-Est, universite Lyon 1, groupement hospitalier Est, hospices civils de Lyon, 59, boulevard Pinel, 69677 Bron cedex, France. FAU - Calender, Alain AU - Calender A AD - UMR 5201 genetique, signalisation et cancer, centre Leon-Berard, 69008 Lyon, France; Laboratoire de genetique moleculaire, hopital Edouard-Herriot, batiment B7, 69347 Lyon cedex 03, France. Electronic address: alain.calender@chu-lyon.fr. CN - Groupe francais des tumeurs endocrines (GTE) LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140702 PL - France TA - Ann Endocrinol (Paris) JT - Annales d'endocrinologie JID - 0116744 RN - 0 (MEN1 protein, human) RN - 0 (Men1 protein, mouse) RN - 0 (Proto-Oncogene Proteins) SB - IM MH - Adenoma/genetics MH - Adult MH - Animals MH - Cell Line, Tumor MH - Female MH - Heterozygote MH - Humans MH - Hyperparathyroidism/genetics MH - Leydig Cell Tumor/genetics MH - Male MH - Mice MH - Mice, Knockout MH - Middle Aged MH - Multiple Endocrine Neoplasia Type 1/*genetics MH - *Mutation MH - Phenotype MH - Pituitary Neoplasms/genetics MH - Polymorphism, Genetic/*genetics MH - Proto-Oncogene Proteins/deficiency/*genetics MH - Transfection OTO - NOTNLM OT - Multiple endocrine neoplasia type 1 OT - Mutation OT - Neoplasie endocrinienne multiple de type 1 OT - Penetrance OT - Polymorphism OT - Polymorphisme OT - Predisposition OT - Predisposition OT - Penetrance FIR - Sarfati, E IR - Sarfati E FIR - Caron, P IR - Caron P FIR - Krivstky, A IR - Krivstky A FIR - Bertagna, F IR - Bertagna F FIR - Brunaud, L IR - Brunaud L FIR - Levy, P IR - Levy P FIR - Peix, J L IR - Peix JL FIR - Rohmer, V IR - Rohmer V FIR - Delemer, B IR - Delemer B FIR - Houllier, P IR - Houllier P FIR - de Boisvilliers, F IR - de Boisvilliers F FIR - Galinat, S IR - Galinat S FIR - Wojtusciszyn, A IR - Wojtusciszyn A FIR - Verier-Mine, O IR - Verier-Mine O FIR - Reffet, S IR - Reffet S FIR - Khiter, C IR - Khiter C FIR - Carpentier, B IR - Carpentier B FIR - Ronci-Chaix, N IR - Ronci-Chaix N FIR - Guignat, L IR - Guignat L FIR - Baudry, A IR - Baudry A FIR - Nion-Larmurier, I IR - Nion-Larmurier I FIR - Vacher-Lavenu, M-C IR - Vacher-Lavenu MC FIR - Berger, F IR - Berger F FIR - Costes-Martineau, V IR - Costes-Martineau V FIR - Delisle, B IR - Delisle B FIR - Cezard, J-P IR - Cezard JP FIR - Parfait, B IR - Parfait B FIR - Barlier, A IR - Barlier A FIR - Odou, M-F IR - Odou MF FIR - Porchet, N IR - Porchet N FIR - Cadiot, G IR - Cadiot G FIR - Bouchard, P IR - Bouchard P FIR - Brue, T IR - Brue T FIR - Mitry, E IR - Mitry E FIR - Vantyghem, M-C IR - Vantyghem MC FIR - Couvelard, A IR - Couvelard A FIR - Danel, C IR - Danel C FIR - Niccoli, P IR - Niccoli P FIR - Baudin, E IR - Baudin E FIR - Tabarin, A IR - Tabarin A FIR - Chabre, O IR - Chabre O FIR - de Boullay, H IR - de Boullay H FIR - Beckers, A IR - Beckers A FIR - Orgiazzi, J IR - Orgiazzi J FIR - Menegaux, F IR - Menegaux F FIR - Chabrier, G IR - Chabrier G FIR - Verges, B IR - Verges B FIR - Penfornis, A IR - Penfornis A FIR - Chanson, P IR - Chanson P FIR - Rodier, M IR - Rodier M FIR - Archambeaud, F IR - Archambeaud F FIR - Lombard-Bohas, C IR - Lombard-Bohas C FIR - Chayvialle, J-A IR - Chayvialle JA EDAT- 2014/07/07 06:00 MHDA- 2015/04/11 06:00 CRDT- 2014/07/07 06:00 PHST- 2014/02/03 00:00 [received] PHST- 2014/04/23 00:00 [revised] PHST- 2014/05/12 00:00 [accepted] PHST- 2014/07/07 06:00 [entrez] PHST- 2014/07/07 06:00 [pubmed] PHST- 2015/04/11 06:00 [medline] AID - S0003-4266(14)00069-9 [pii] AID - 10.1016/j.ando.2014.05.003 [doi] PST - ppublish SO - Ann Endocrinol (Paris). 2014 Jul;75(3):133-40. doi: 10.1016/j.ando.2014.05.003. Epub 2014 Jul 2.