Genotype-first in a cohort of 95 fetuses with multiple congenital abnormalities: when exome sequencing reveals unexpected fetal phenotype-genotype correlations.

Fiche publication


Date publication

juillet 2020

Journal

Journal of medical genetics

Auteurs

Membres identifiés du Cancéropôle Est :
Pr GAILLARD Dominique, Pr MANDEL Jean-Louis, Pr FAIVRE Laurence, Pr PHILIPPE Christophe, Dr NAMBOT Sophie, Pr LEBRE Anne-Sophie


Tous les auteurs :
Lefebvre M, Bruel AL, Tisserant E, Bourgon N, Duffourd Y, Collardeau-Frachon S, Attie-Bitach T, Kuentz P, Assoum M, Schaefer E, El Chehadeh S, Antal MC, Kremer V, Girard-Lemaitre F, Mandel JL, Lehalle D, Nambot S, Jean-Marçais N, Houcinat N, Moutton S, Marle N, Lambert L, Jonveaux P, Foliguet B, Mazutti JP, Gaillard D, Alanio E, Poirisier C, Lebre AS, Aubert-Lenoir M, Arbez-Gindre F, Odent S, Quélin C, Loget P, Fradin M, Willems M, Bigi N, Perez MJ, Blesson S, Francannet C, Beaufrere AM, Patrier-Sallebert S, Guerrot AM, Goldenberg A, Brehin AC, Lespinasse J, Touraine R, Capri Y, Saint-Frison MH, Laurent N, Philippe C, Tran Mau-Them F, Thevenon J, Faivre L, Thauvin-Robinet C, Vitobello A

Résumé

Molecular diagnosis based on singleton exome sequencing (sES) is particularly challenging in fetuses with multiple congenital abnormalities (MCA). Indeed, some studies reveal a diagnostic yield of about 20%, far lower than in live birth individuals showing developmental abnormalities (30%), suggesting that standard analyses, based on the correlation between clinical hallmarks described in postnatal syndromic presentations and genotype, may underestimate the impact of the genetic variants identified in fetal analyses.

Mots clés

complex traits, genetics, molecular genetics, reproductive medicine

Référence

J. Med. Genet.. 2020 Jul 30;: