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Inicio Medicina Clínica Análisis mutacional de p53 en la leucemia linfoblástica T
Journal Information
Vol. 115. Issue 15.
Pages 573-575 (January 2000)
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Vol. 115. Issue 15.
Pages 573-575 (January 2000)
Análisis mutacional de p53 en la leucemia linfoblástica T
Mutational analysis of p53 in T-acute lymphoblastic leukemia
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Josep F. Nomdedéu
Corresponding author
jnomdedeu@santpau.es

Correspondencia: Dr.Josep F. Nomdedéu. Departament d'Hematologia. Hospital de la Santa Creu i Sant Pau. Avda. Sant Antoni M. Claret, 167. 08025 Barcelona.
, Camino Estivili, Jorge Sierra
Departamentos de Hematologia, Hospital de la Santa Creu i Sant Pau. Barcelona.
Isabel Badella, Elisabeth del Ríob, Montserrat Baigetb
a Pediatría Hospital de la Santa Creu i Sant Pau. Barcelona.
b Genética. Hospital de la Santa Creu i Sant Pau. Barcelona.
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Fundamento

Para valorar la frecuencia de mutaciones de p53 en la leucemia linfo-blástica aguda T se analizan las muestras obtenidas en nuestro hospital durante un período de 9 años.

Pacientes y método

Se estudiaron 32 mues-tras correspondientes a 27 pacientes me-diante SSCP radiactivo.

Resultados

Se identificó una mutación en heterozigosis en el codón 273 en un niño en tercera recaída. La mutación se hizo do-minante con desaparición del alelo normal en una muestra obtenida tras haber recibi-do un protocolo de rescate.

Conclusiones

Las mutaciones de p53 son poco frecuentes la leucemia linfoblástica aguda T.

Palabras clave:
Leucemia linfoblástica aguda T
Linfoma p53
Background

p53 mutations were analysed in a consecutive series of patients with T-ALL from one hospital over a period of 9 years.

Patients and method

Thirty two samples from 27 patients with T-ALL were included in the study. Exons 5-9 were analysed using SSCP.

Results

A mutation at codon 273 was identified in a child in third relapse. The mutated clone became dominant in a sam-ple obtained one month following a course of salvage chemotherapy.

Conclusions

p53 mutations are not frequent in T-ALL even in patients at relapse

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