Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemia
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista brasileira de hematologia e hemoterapia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-84842015000600373 |
Resumo: | ABSTRACT Introduction: Minimal residual disease is an important independent prognostic factor that can identify poor responders among patients with acute lymphoblastic leukemia. Objective: The aim of this study was to analyze minimal residual disease using immunoglobulin (Ig) and T-cell receptor (TCR) gene rearrangements by conventional polymerase chain reaction followed by homo-heteroduplex analysis and to compare this with real-time polymerase chain reaction at the end of the induction period in children with acute lymphoblastic leukemia. Methods: Seventy-four patients diagnosed with acute lymphoblastic leukemia were enrolled. Minimal residual disease was evaluated by qualitative polymerase chain reaction in 57 and by both tests in 44. The Kaplan-Meier and multivariate Cox methods and the log-rank test were used for statistical analysis. Results: Nine patients (15.8%) were positive for minimal residual disease by qualitative polymerase chain reaction and 11 (25%) by real-time polymerase chain reaction considering a cut-off point of 1 × 10−3 for precursor B-cell acute lymphoblastic leukemia and 1 × 10−2 for T-cell acute lymphoblastic leukemia. Using the qualitative method, the 3.5-year leukemia- free survival was significantly higher in children negative for minimal residual disease compared to those with positive results (84.1% ± 5.6% versus 41.7% ± 17.3%, respectively; p-value = 0.004). There was no significant association between leukemia-free survival and minimal residual disease by real-time polymerase chain reaction. Minimal residual disease by qualitative polymerase chain reaction was the only variable significantly correlated to leukemia-free survival. Conclusion: Given the difficulties in the implementation of minimal residual disease monitoring by real-time polymerase chain reaction in most treatment centers in Brazil, the qualitative polymerase chain reaction strategy may be a cost-effective alternative. |
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Revista brasileira de hematologia e hemoterapia (Online) |
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Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemiaMinimal residual diseasePolymerase chain reactionAcute lymphoblastic leukemiaLeukemia free survivalABSTRACT Introduction: Minimal residual disease is an important independent prognostic factor that can identify poor responders among patients with acute lymphoblastic leukemia. Objective: The aim of this study was to analyze minimal residual disease using immunoglobulin (Ig) and T-cell receptor (TCR) gene rearrangements by conventional polymerase chain reaction followed by homo-heteroduplex analysis and to compare this with real-time polymerase chain reaction at the end of the induction period in children with acute lymphoblastic leukemia. Methods: Seventy-four patients diagnosed with acute lymphoblastic leukemia were enrolled. Minimal residual disease was evaluated by qualitative polymerase chain reaction in 57 and by both tests in 44. The Kaplan-Meier and multivariate Cox methods and the log-rank test were used for statistical analysis. Results: Nine patients (15.8%) were positive for minimal residual disease by qualitative polymerase chain reaction and 11 (25%) by real-time polymerase chain reaction considering a cut-off point of 1 × 10−3 for precursor B-cell acute lymphoblastic leukemia and 1 × 10−2 for T-cell acute lymphoblastic leukemia. Using the qualitative method, the 3.5-year leukemia- free survival was significantly higher in children negative for minimal residual disease compared to those with positive results (84.1% ± 5.6% versus 41.7% ± 17.3%, respectively; p-value = 0.004). There was no significant association between leukemia-free survival and minimal residual disease by real-time polymerase chain reaction. Minimal residual disease by qualitative polymerase chain reaction was the only variable significantly correlated to leukemia-free survival. Conclusion: Given the difficulties in the implementation of minimal residual disease monitoring by real-time polymerase chain reaction in most treatment centers in Brazil, the qualitative polymerase chain reaction strategy may be a cost-effective alternative.Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular2015-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-84842015000600373Revista Brasileira de Hematologia e Hemoterapia v.37 n.6 2015reponame:Revista brasileira de hematologia e hemoterapia (Online)instname:Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular (ABHHTC)instacron:ABHHTC10.1016/j.bjhh.2015.08.003info:eu-repo/semantics/openAccessPaula,Francisco Danilo FerreiraElói-Santos,Silvana MariaXavier,Sandra GuerraGanazza,Mônica AparecidaJotta,Patricia YoshiokaYunes,José AndrésViana,Marcos BoratoAssumpção,Juliana Godoyeng2016-01-07T00:00:00Zoai:scielo:S1516-84842015000600373Revistahttp://www.rbhh.org/pt/archivo/https://old.scielo.br/oai/scielo-oai.phpsbhh@terra.com.br||secretaria@rbhh.org1806-08701516-8484opendoar:2016-01-07T00:00Revista brasileira de hematologia e hemoterapia (Online) - Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular (ABHHTC)false |
dc.title.none.fl_str_mv |
Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemia |
title |
Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemia |
spellingShingle |
Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemia Paula,Francisco Danilo Ferreira Minimal residual disease Polymerase chain reaction Acute lymphoblastic leukemia Leukemia free survival |
title_short |
Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemia |
title_full |
Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemia |
title_fullStr |
Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemia |
title_full_unstemmed |
Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemia |
title_sort |
Comparison between qualitative and real-time polymerase chain reaction to evaluate minimal residual disease in children with acute lymphoblastic leukemia |
author |
Paula,Francisco Danilo Ferreira |
author_facet |
Paula,Francisco Danilo Ferreira Elói-Santos,Silvana Maria Xavier,Sandra Guerra Ganazza,Mônica Aparecida Jotta,Patricia Yoshioka Yunes,José Andrés Viana,Marcos Borato Assumpção,Juliana Godoy |
author_role |
author |
author2 |
Elói-Santos,Silvana Maria Xavier,Sandra Guerra Ganazza,Mônica Aparecida Jotta,Patricia Yoshioka Yunes,José Andrés Viana,Marcos Borato Assumpção,Juliana Godoy |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Paula,Francisco Danilo Ferreira Elói-Santos,Silvana Maria Xavier,Sandra Guerra Ganazza,Mônica Aparecida Jotta,Patricia Yoshioka Yunes,José Andrés Viana,Marcos Borato Assumpção,Juliana Godoy |
dc.subject.por.fl_str_mv |
Minimal residual disease Polymerase chain reaction Acute lymphoblastic leukemia Leukemia free survival |
topic |
Minimal residual disease Polymerase chain reaction Acute lymphoblastic leukemia Leukemia free survival |
description |
ABSTRACT Introduction: Minimal residual disease is an important independent prognostic factor that can identify poor responders among patients with acute lymphoblastic leukemia. Objective: The aim of this study was to analyze minimal residual disease using immunoglobulin (Ig) and T-cell receptor (TCR) gene rearrangements by conventional polymerase chain reaction followed by homo-heteroduplex analysis and to compare this with real-time polymerase chain reaction at the end of the induction period in children with acute lymphoblastic leukemia. Methods: Seventy-four patients diagnosed with acute lymphoblastic leukemia were enrolled. Minimal residual disease was evaluated by qualitative polymerase chain reaction in 57 and by both tests in 44. The Kaplan-Meier and multivariate Cox methods and the log-rank test were used for statistical analysis. Results: Nine patients (15.8%) were positive for minimal residual disease by qualitative polymerase chain reaction and 11 (25%) by real-time polymerase chain reaction considering a cut-off point of 1 × 10−3 for precursor B-cell acute lymphoblastic leukemia and 1 × 10−2 for T-cell acute lymphoblastic leukemia. Using the qualitative method, the 3.5-year leukemia- free survival was significantly higher in children negative for minimal residual disease compared to those with positive results (84.1% ± 5.6% versus 41.7% ± 17.3%, respectively; p-value = 0.004). There was no significant association between leukemia-free survival and minimal residual disease by real-time polymerase chain reaction. Minimal residual disease by qualitative polymerase chain reaction was the only variable significantly correlated to leukemia-free survival. Conclusion: Given the difficulties in the implementation of minimal residual disease monitoring by real-time polymerase chain reaction in most treatment centers in Brazil, the qualitative polymerase chain reaction strategy may be a cost-effective alternative. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-84842015000600373 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-84842015000600373 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1016/j.bjhh.2015.08.003 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular |
publisher.none.fl_str_mv |
Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular |
dc.source.none.fl_str_mv |
Revista Brasileira de Hematologia e Hemoterapia v.37 n.6 2015 reponame:Revista brasileira de hematologia e hemoterapia (Online) instname:Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular (ABHHTC) instacron:ABHHTC |
instname_str |
Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular (ABHHTC) |
instacron_str |
ABHHTC |
institution |
ABHHTC |
reponame_str |
Revista brasileira de hematologia e hemoterapia (Online) |
collection |
Revista brasileira de hematologia e hemoterapia (Online) |
repository.name.fl_str_mv |
Revista brasileira de hematologia e hemoterapia (Online) - Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular (ABHHTC) |
repository.mail.fl_str_mv |
sbhh@terra.com.br||secretaria@rbhh.org |
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1754213112770199552 |