Mandibuloacral dysplasia (MAD) is an autosomal recessive disorder characterized by postnatal growth retardation, hypoplasia of the mandible and clavicles, acro-osteolysis, and partial lipodystrophy. Affected individuals have a normal appearance at birth, then progressively develop dysmorphic skeletal features. Mutations in LMNA or ZMPSTE24 are responsible for the disorder. Recently, a novel MAD progeroid syndrome due to recessive mutations in MTX2 has been reported. MTX2 encodes an outer mitochondrial membrane protein.
Category
Congenital malformation
Brite
Human diseases in ICD-11 classification [BR:br08403]
20 Developmental anomalies
Multiple developmental anomalies or syndromes
LD27 Syndromes with skin or mucosal anomalies as a major feature
H00665 Mandibuloacral dysplasia
Elouej S, Harhouri K, Le Mao M, Baujat G, Nampoothiri S, Kayserili H, Menabawy NA, Selim L, Paneque AL, Kubisch C, Lessel D, Rubinsztajn R, Charar C, Bartoli C, Airault C, Deleuze JF, Rotig A, Bauer P, Pereira C, Loh A, Escande-Beillard N, Muchir A, Martino L, Gruenbaum Y, Lee SH, Manivet P, Lenaers G, Reversade B, Levy N, De Sandre-Giovannoli A
Title
Loss of MTX2 causes mandibuloacral dysplasia and links mitochondrial dysfunction to altered nuclear morphology.
