PMID- 24129437 OWN - NLM STAT- MEDLINE DCOM- 20141118 LR - 20220311 IS - 1476-5438 (Electronic) IS - 1018-4813 (Print) IS - 1018-4813 (Linking) VI - 22 IP - 4 DP - 2014 Apr TI - Early-onset obesity and paternal 2pter deletion encompassing the ACP1, TMEM18, and MYT1L genes. PG - 471-9 LID - 10.1038/ejhg.2013.189 [doi] AB - Obesity is a common but highly, clinically, and genetically heterogeneous disease. Deletion of the terminal region of the short arm of chromosome 2 is rare and has been reported in about 13 patients in the literature often associated with a Prader-Willi-like phenotype. We report on five unrelated patients with 2p25 deletion of paternal origin presenting with early-onset obesity, hyperphagia, intellectual deficiency, and behavioural difficulties. Among these patients, three had de novo pure 2pter deletions, one presented with a paternal derivative der(2)t(2;15)(p25.3;q26) with deletion in the 2pter region and the last patient presented with an interstitial 2p25 deletion. The size of the deletions was characterized by SNP array or array-CGH and was confirmed by fluorescence in situ hybridization (FISH) studies. Four patients shared a 2p25.3 deletion with a minimal critical region estimated at 1.97 Mb and encompassing seven genes, namely SH3HYL1, ACP1, TMEMI8, SNTG2, TPO, PXDN, and MYT1L genes. The fifth patient had a smaller interstitial deletion encompassing the TPO, PXDN, and MYT1L genes. Paternal origin of the deletion was determined by genotyping using microsatellite markers. Analysis of the genes encompassed in the deleted region led us to speculate that the ACP1, TMEM18, and/or MYT1L genes might be involved in early-onset obesity. In addition, intellectual deficiency and behavioural troubles can be explained by the heterozygous loss of the SNTG2 and MYT1L genes. Finally, we discuss the parent-of-origin of the deletion. FAU - Doco-Fenzy, Martine AU - Doco-Fenzy M AD - Service de Genetique, Hopital Maison-Blanche, CHRU, UFR de Medecine, Reims, France. FAU - Leroy, Camille AU - Leroy C AD - Service de Genetique, Hopital Maison-Blanche, CHRU, UFR de Medecine, Reims, France. FAU - Schneider, Anouck AU - Schneider A AD - Departement de Genetique Medicale, CHRU Montpellier, Faculte de Medecine de Montpellier-Nimes, Universite Montpellier 1, Montpellier, France. FAU - Petit, Florence AU - Petit F AD - Service de Genetique, CHU de Lille, Lille, France. FAU - Delrue, Marie-Ange AU - Delrue MA AD - Service de Genetique Medicale, Laboratoire MRGM, (EA 4576), CHRU de Bordeaux, Bordeaux, France. FAU - Andrieux, Joris AU - Andrieux J AD - Service de Genetique, CHU de Lille, Lille, France. FAU - Perrin-Sabourin, Laurence AU - Perrin-Sabourin L AD - Federation de Genetique, Hopital Robert Debre, APHP Paris, Paris, France. FAU - Landais, Emilie AU - Landais E AD - Service de Genetique, Hopital Maison-Blanche, CHRU, UFR de Medecine, Reims, France. FAU - Aboura, Azzedine AU - Aboura A AD - Federation de Genetique, Hopital Robert Debre, APHP Paris, Paris, France. FAU - Puechberty, Jacques AU - Puechberty J AD - 1] Departement de Genetique Medicale, CHRU Montpellier, Faculte de Medecine de Montpellier-Nimes, Universite Montpellier 1, Montpellier, France [2] Plateforme puce a ADN, CHRU Montpellier, Universite Montpellier 1, Montpellier, France. FAU - Girard, Manon AU - Girard M AD - Plateforme puce a ADN, CHRU Montpellier, Universite Montpellier 1, Montpellier, France. FAU - Tournaire, Magali AU - Tournaire M AD - Plateforme puce a ADN, CHRU Montpellier, Universite Montpellier 1, Montpellier, France. FAU - Sanchez, Elodie AU - Sanchez E AD - Departement de Genetique Medicale, CHRU Montpellier, Faculte de Medecine de Montpellier-Nimes, Universite Montpellier 1, Montpellier, France. FAU - Rooryck, Caroline AU - Rooryck C AD - Service de Genetique Medicale, Laboratoire MRGM, (EA 4576), CHRU de Bordeaux, Bordeaux, France. FAU - Ameil, Agnes AU - Ameil A AD - Service de Pediatrie, American Memorial Hospital, CHRU, Reims, France. FAU - Goossens, Michel AU - Goossens M AD - Laboratoire de Genetique, AP-HP, et INSERM U-841, CHU Henri Mondor, Creteil, France. FAU - Jonveaux, Philippe AU - Jonveaux P AD - Service de Genetique, CHRU de Nancy-Brabois, Inserm U954, Universite de Lorraine, Nancy, France. FAU - Lefort, Genevieve AU - Lefort G AD - 1] Departement de Genetique Medicale, CHRU Montpellier, Faculte de Medecine de Montpellier-Nimes, Universite Montpellier 1, Montpellier, France [2] Plateforme puce a ADN, CHRU Montpellier, Universite Montpellier 1, Montpellier, France. FAU - Taine, Laurence AU - Taine L AD - Service de Genetique Medicale, Laboratoire MRGM, (EA 4576), CHRU de Bordeaux, Bordeaux, France. FAU - Cailley, Dorothee AU - Cailley D AD - Service de Genetique Medicale, Laboratoire MRGM, (EA 4576), CHRU de Bordeaux, Bordeaux, France. FAU - Gaillard, Dominique AU - Gaillard D AD - Service de Genetique, Hopital Maison-Blanche, CHRU, UFR de Medecine, Reims, France. FAU - Leheup, Bruno AU - Leheup B AD - CHU de Nancy, Pole Enfant, Service de genetique clinique, Vandoeuvre les nancy, F-54511, France. FAU - Sarda, Pierre AU - Sarda P AD - Departement de Genetique Medicale, CHRU Montpellier, Faculte de Medecine de Montpellier-Nimes, Universite Montpellier 1, Montpellier, France. FAU - Genevieve, David AU - Genevieve D AD - Departement de Genetique Medicale, CHRU Montpellier, Faculte de Medecine de Montpellier-Nimes, Universite Montpellier 1, Montpellier, France. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131016 PL - England TA - Eur J Hum Genet JT - European journal of human genetics : EJHG JID - 9302235 RN - 0 (MYT1L protein, human) RN - 0 (Membrane Proteins) RN - 0 (Nerve Tissue Proteins) RN - 0 (Proto-Oncogene Proteins) RN - 0 (TMEM18 protein, human) RN - 0 (Transcription Factors) RN - EC 3.1.3.48 (ACP1 protein, human) RN - EC 3.1.3.48 (Protein Tyrosine Phosphatases) SB - IM MH - Child MH - Child, Preschool MH - Chromosomes, Human, Pair 2/*genetics MH - Comparative Genomic Hybridization MH - Female MH - Genome-Wide Association Study MH - Genotype MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Membrane Proteins/*genetics MH - Nerve Tissue Proteins/*genetics MH - Obesity/complications/diagnosis/*genetics MH - Phenotype MH - Polymorphism, Single Nucleotide MH - Prader-Willi Syndrome/complications/genetics MH - Protein Tyrosine Phosphatases/*genetics MH - Proto-Oncogene Proteins/*genetics MH - Sequence Analysis, DNA MH - *Sequence Deletion MH - Transcription Factors/*genetics PMC - PMC3953915 EDAT- 2013/10/17 06:00 MHDA- 2014/11/19 06:00 PMCR- 2015/04/01 CRDT- 2013/10/17 06:00 PHST- 2013/02/22 00:00 [received] PHST- 2013/06/24 00:00 [revised] PHST- 2013/07/24 00:00 [accepted] PHST- 2013/10/17 06:00 [entrez] PHST- 2013/10/17 06:00 [pubmed] PHST- 2014/11/19 06:00 [medline] PHST- 2015/04/01 00:00 [pmc-release] AID - ejhg2013189 [pii] AID - 10.1038/ejhg.2013.189 [doi] PST - ppublish SO - Eur J Hum Genet. 2014 Apr;22(4):471-9. doi: 10.1038/ejhg.2013.189. Epub 2013 Oct 16.