Análisis molecular de la cohorte Argentina afectada con distrofinopatía : diagnóstico, asesoramiento genético y caracterización del gen DMD

Dystrophinopathies are monogenic recessive diseases linked to the X chromosome and caused by mutations in the DMD gene. This work main objective was to perform a genetic/molecular characterization of the DMD gene. Identifying the molecular alteration is key step for the confirmation of the presumpti...

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Autor principal: Luce, Leonela Natalia
Otros Autores: Giliberto, Florencia
Formato: Tesis doctoral acceptedVersion
Lenguaje:Español
Publicado: Facultad de Farmacia y Bioquímica 2018
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Acceso en línea:http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=posgraafa&cl=CL1&d=HWA_2795
http://repositoriouba.sisbi.uba.ar/gsdl/collect/posgraafa/index/assoc/HWA_2795.dir/2795.PDF
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spelling I28-R145-HWA_27952019-09-25 Dystrophinopathies are monogenic recessive diseases linked to the X chromosome and caused by mutations in the DMD gene. This work main objective was to perform a genetic/molecular characterization of the DMD gene. Identifying the molecular alteration is key step for the confirmation of the presumptive clinical diagnosis, the establishment of the patient?s prognosis and the determination of the mutation-dependent therapeutic strategy more suitable for each individual. However, providing a complete genetic counseling to the affected families using carrier screening, prenatal and preimplantation studies remains being necessary in order to avoid the birth of new affected children. In this thesis, 200 boys with presumptive clinical diagnosis of Dystrophinopathy and 12 symptomatic women were analyzed, resulting in confirmation of the disease in 71.7% (152/212). Furthermore, prognosis was established, candidates for the available therapies were identified and the detected mutations were characterized. Regarding carrier status, 69/240 (28.8%) women were established as carriers while 132/240 (55%) were discarded. From the 15 prenatal studies performed: 7 were discarded of being affected, 4 females resulted non-carriers and 3 carriers. On the other hand, here was demonstrated that dystrophin expression is altered in non-myogenic tumors, corroborating the new physiopathological implication of the DMD gene in tumor development. Fil: Luce, Leonela Natalia. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Buenos Aires, Argentina Facultad de Farmacia y Bioquímica Giliberto, Florencia Luce, Leonela Natalia 2018-03-21 Las Distrofinopatías son enfermedades monogénicas, recesivas ligadas al X, originadas por mutaciones en el gen DMD. El objetivo principal del trabajo consistió en realizar una caracterización genética/molecular del gen DMD. La identificación de la alteración molecular resulta clave para la confirmación del diagnóstico clínico presuntivo, establecer la prognosis del paciente y establecer la estrategia terapéutica mutación-dependiente que se adecúe a cada caso particular. No obstante, continúa siendo necesario brindar un completo asesoramiento genético a las familias afectadas empleando estudios de detección de portadores, prenatales y preimplantatorios de modo de evitar el nacimiento de varones enfermos. En este trabajo fueron analizados 200 varones con diagnóstico clínico de Distrofinopatía y 12 mujeres con sintomatología, corroborándose el cuadro en el 71,7% (152/212). Se estableció la prognosis, identificó a los candidatos para las terapias disponibles y caracterizaron las mutaciones halladas. Se estableció el estado de portadora de 69/240 (28,8%) mujeres y se descartó a 132/240 (55%). Se realizaron 15 estudios prenatales: 7 descartados de ser afectados, 4 no portadoras y 3 portadoras. Pudimos además demostrar que la expresión de distrofina se encuentra alterada en tumores no miogénicos, corroborando la implicancia fisiopatológica del gen DMD en el desarrollo tumoral. application/pdf Flichman, Diego Reyes Toso, Carlos Larripa, Irene Distrofinopatías MLPA Secuenciación de exoma completo Desarrollo turmogénico spa Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ Ciencia de la vida Análisis molecular de la cohorte Argentina afectada con distrofinopatía : diagnóstico, asesoramiento genético y caracterización del gen DMD info:eu-repo/semantics/doctoralThesis info:ar-repo/semantics/tesis doctoral info:eu-repo/semantics/acceptedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=posgraafa&cl=CL1&d=HWA_2795 http://repositoriouba.sisbi.uba.ar/gsdl/collect/posgraafa/index/assoc/HWA_2795.dir/2795.PDF
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-145
collection Repositorio Digital de la Universidad de Buenos Aires (UBA)
language Español
orig_language_str_mv spa
topic Distrofinopatías
MLPA
Secuenciación de exoma completo
Desarrollo turmogénico
Ciencia de la vida
spellingShingle Distrofinopatías
MLPA
Secuenciación de exoma completo
Desarrollo turmogénico
Ciencia de la vida
Luce, Leonela Natalia
Análisis molecular de la cohorte Argentina afectada con distrofinopatía : diagnóstico, asesoramiento genético y caracterización del gen DMD
topic_facet Distrofinopatías
MLPA
Secuenciación de exoma completo
Desarrollo turmogénico
Ciencia de la vida
description Dystrophinopathies are monogenic recessive diseases linked to the X chromosome and caused by mutations in the DMD gene. This work main objective was to perform a genetic/molecular characterization of the DMD gene. Identifying the molecular alteration is key step for the confirmation of the presumptive clinical diagnosis, the establishment of the patient?s prognosis and the determination of the mutation-dependent therapeutic strategy more suitable for each individual. However, providing a complete genetic counseling to the affected families using carrier screening, prenatal and preimplantation studies remains being necessary in order to avoid the birth of new affected children. In this thesis, 200 boys with presumptive clinical diagnosis of Dystrophinopathy and 12 symptomatic women were analyzed, resulting in confirmation of the disease in 71.7% (152/212). Furthermore, prognosis was established, candidates for the available therapies were identified and the detected mutations were characterized. Regarding carrier status, 69/240 (28.8%) women were established as carriers while 132/240 (55%) were discarded. From the 15 prenatal studies performed: 7 were discarded of being affected, 4 females resulted non-carriers and 3 carriers. On the other hand, here was demonstrated that dystrophin expression is altered in non-myogenic tumors, corroborating the new physiopathological implication of the DMD gene in tumor development.
author2 Giliberto, Florencia
author_facet Giliberto, Florencia
Luce, Leonela Natalia
format Tesis doctoral
Tesis doctoral
acceptedVersion
author Luce, Leonela Natalia
author_sort Luce, Leonela Natalia
title Análisis molecular de la cohorte Argentina afectada con distrofinopatía : diagnóstico, asesoramiento genético y caracterización del gen DMD
title_short Análisis molecular de la cohorte Argentina afectada con distrofinopatía : diagnóstico, asesoramiento genético y caracterización del gen DMD
title_full Análisis molecular de la cohorte Argentina afectada con distrofinopatía : diagnóstico, asesoramiento genético y caracterización del gen DMD
title_fullStr Análisis molecular de la cohorte Argentina afectada con distrofinopatía : diagnóstico, asesoramiento genético y caracterización del gen DMD
title_full_unstemmed Análisis molecular de la cohorte Argentina afectada con distrofinopatía : diagnóstico, asesoramiento genético y caracterización del gen DMD
title_sort análisis molecular de la cohorte argentina afectada con distrofinopatía : diagnóstico, asesoramiento genético y caracterización del gen dmd
publisher Facultad de Farmacia y Bioquímica
publishDate 2018
url http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=posgraafa&cl=CL1&d=HWA_2795
http://repositoriouba.sisbi.uba.ar/gsdl/collect/posgraafa/index/assoc/HWA_2795.dir/2795.PDF
work_keys_str_mv AT luceleonelanatalia analisismoleculardelacohorteargentinaafectadacondistrofinopatiadiagnosticoasesoramientogeneticoycaracterizaciondelgendmd
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