Per citar aquest document: http://ddd.uab.cat/record/163256
Human MAMLD1 Gene Variations Seem Not Sufficient to Explain a 46,XY DSD Phenotype
Camats Tarruella, Núria (University Children's Hospital Bern (Suïssa))
Fernández-Cancio, Mónica (Vall d'Hebron Institut de Recerca)
Audí, Laura (Vall d'Hebron Institut de Recerca)
Mullis, Primus E. (University Children's Hospital Bern (Suïssa))
Moreno, Francisca (Hospital Universitario La Fe (València, País Valencià))
González Casado, Isabel (Hospital Universitario La Paz (Madrid))
López-Siguero, Juan Pedro (Hospital Materno-Infantil (Màlaga, Andalusia))
Corripio Collado, Raquel (Corporació Sanitària Parc Taulí (Sabadell, Barcelona))
Bermúdez de la Vega, José Antonio (Hospital Universitario Virgen Macarena (Sevilla, Andalusia))
Blanco, José Antonio (Hospital Universitari Germans Trias i Pujol (Badalona, Barcelona))
Flück, Christa E. (University Children's Hospital Bern (Suïssa))

Data: 2015
Resum: MAMLD1 is thought to cause disordered sex development in 46,XY patients. But its role is controversial because some MAMLD1 variants are also detected in normal individuals, several MAMLD1 mutations have wild-type activity in functional tests, and the male Mamld1-knockout mouse has normal genitalia and reproduction. Our aim was to search for MAMLD1 variations in 108 46,XY patients with disordered sex development, and to test them functionally. We detected MAMDL1 variations and compared SNP frequencies in controls and patients. We tested MAMLD1 transcriptional activity on promoters involved in sex development and assessed the effect of MAMLD1 on androgen production. MAMLD1 expression in normal steroid-producing tissues and mutant MAMLD1 protein expression were also assessed. Nine MAMLD1 mutations (7 novel) were characterized. In vitro, most MAMLD1 variants acted similarly to wild type. Only the L210X mutation showed loss of function in all tests. We detected no effect of wild-type or MAMLD1 variants on CYP17A1 enzyme activity in our cell experiments, and Western blots revealed no significant differences for MAMLD1 protein expression. MAMLD1 was expressed in human adult testes and adrenals. In conclusion, our data support the notion that MAMLD1 sequence variations may not suffice to explain the phenotype in carriers and that MAMLD1 may also have a role in adult life.
Nota: Ajuts: Swiss National Science Foundation (320030-146127), the Instituto de Salud Carlos III CIBERER U-712, i the University and Research Management and Evaluation Agency (2009SGR31)
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Llengua: Anglès
Document: article ; recerca ; publishedVersion
Publicat a: PloS one, Vol. 10 Núm. 11 (november 2015) , ISSN 1932-6203

DOI: 10.1371/journal.pone.0142831


20 p, 1.1 MB

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Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències de la salut i biociències > Institut d'Investigació en Ciencies de la Salut Germans Trias i Pujol (IGTP)
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 Registre creat el 2016-07-26, darrera modificació el 2016-10-18



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