Detection of copy number variations in pediatric ETV6/RUNX1-positive acute lymphoblastic leukemia with multiplex ligation-dependent probe amplification / 中国当代儿科杂志
Chinese Journal of Contemporary Pediatrics
; (12): 34-38, 2016.
Article
em Zh
| WPRIM
| ID: wpr-279901
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the application of multiplex ligation-dependent probe amplification (MLPA) in the detection of copy number variations (CNVs) in pediatric ETV6/RUNX1-positive acute lymphoblastic leukemia (ALL), to compare this method with conventional karyotype analysis and fluorescence in situ hybridization (FISH), and to evaluate the value of MLPA.</p><p><b>METHODS</b>The clinical data of 95 children with ETV6/RUNX1-positive ALL who were treated from January 2006 to November 2012 were analyzed retrospectively, including clinical features, results of karyotype analysis, and results of FISH. CNVs were detected with MLPA.</p><p><b>RESULTS</b>CNVs were detected in 73 (77%), and the median number of CNVs was 1 (range 0-6). The CNVs of EBF1, CDKN2A/2B, PAX5, ETV6, RB1, and BTG1 were detected in more than 10% of all the patients. The changes in the chromosome segments carrying the genes with CNVs detected by MLPA were not detected by conventional karyotype analysis. The coincidence rate between the CNVs in ETV6 gene detected by FISH and those detected by MLPA was 66%.</p><p><b>CONCLUSIONS</b>MLPA is an efficient and convenient method to detect CNVs in children with ETV6/RUNX1-positive ALL.</p>
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Índice:
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Assunto principal:
Proteínas de Fusão Oncogênica
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Hibridização in Situ Fluorescente
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Subunidade alfa 2 de Fator de Ligação ao Core
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Leucemia-Linfoma Linfoblástico de Células Precursoras
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Variações do Número de Cópias de DNA
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Reação em Cadeia da Polimerase Multiplex
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Genética
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Métodos
Tipo de estudo:
Diagnostic_studies
Limite:
Adolescent
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Child
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Child, preschool
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Female
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Humans
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Infant
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Male
Idioma:
Zh
Revista:
Chinese Journal of Contemporary Pediatrics
Ano de publicação:
2016
Tipo de documento:
Article