No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas
- Autores
- Chabay, Paola Andrea; Pesce, Pablo Adrian; de Matteo, Elena Noemí; García Lombardi, Mercedes; Rey, Guadalupe; Preciado, María Victoria
- Año de publicación
- 2006
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In Argentina, lymphomas account for 13.6% of all pediatric tumors and 47% of them are Hodgkin lymphoma. Previous studies of lymphoma series have reported the expression of apoptotic and cell cycle proteins. Our aim was to study these markers in our pediatric patients and correlate them with their outcome. Immunohistochemical staining with monoclonal antibodies anti-p53, bcl-2, p21waf1, and mdm2 were performed on formalin fixed paraffin-embedded Hodgkin lymphoma lymph node biopsies from 54 pediatric patients. The analyzed oncogenes p53, bcl-2, p21waf1, and mdm2 exhibited 81%, 44%, 76%, and 90% positive staining, respectively. The most prevalent p53/p21waf1 expression pattern was p53+/p21waf1+, in 57% of cases, whereas concerning p53/mdm2 expression pattern p53+/mdm2+ was observed in 61% of cases. We failed to .nd any statistically signi.cant correlation between oncogene expression and patient’s survival. It seems that p53 plays an important role in lymphomagenesis in our studied population, because it is overexpressed in 81% of Hodgkin lymphoma cases and in more than 50% of cases, it might be able to activate its cellular e.ectors. Bcl-2 staining observed in 44% of our cases could represent a failure in bcl-2 down-regulation that leads to a rescue event in defective germinal center B-cells, that allows them to develop into Reed-Sternberg and Hodgkin cells.
Fil: Chabay, Paola Andrea. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pesce, Pablo Adrian. No especifíca;
Fil: de Matteo, Elena Noemí. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: García Lombardi, Mercedes. No especifíca;
Fil: Rey, Guadalupe. No especifíca;
Fil: Preciado, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina - Materia
-
HODGKIN LYMPHOMA
CHILDREN
OUTCOME - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/245205
Ver los metadatos del registro completo
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CONICET Digital (CONICET) |
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No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin LymphomasChabay, Paola AndreaPesce, Pablo Adriande Matteo, Elena NoemíGarcía Lombardi, MercedesRey, GuadalupePreciado, María VictoriaHODGKIN LYMPHOMACHILDRENOUTCOMEhttps://purl.org/becyt/ford/3.5https://purl.org/becyt/ford/3In Argentina, lymphomas account for 13.6% of all pediatric tumors and 47% of them are Hodgkin lymphoma. Previous studies of lymphoma series have reported the expression of apoptotic and cell cycle proteins. Our aim was to study these markers in our pediatric patients and correlate them with their outcome. Immunohistochemical staining with monoclonal antibodies anti-p53, bcl-2, p21waf1, and mdm2 were performed on formalin fixed paraffin-embedded Hodgkin lymphoma lymph node biopsies from 54 pediatric patients. The analyzed oncogenes p53, bcl-2, p21waf1, and mdm2 exhibited 81%, 44%, 76%, and 90% positive staining, respectively. The most prevalent p53/p21waf1 expression pattern was p53+/p21waf1+, in 57% of cases, whereas concerning p53/mdm2 expression pattern p53+/mdm2+ was observed in 61% of cases. We failed to .nd any statistically signi.cant correlation between oncogene expression and patient’s survival. It seems that p53 plays an important role in lymphomagenesis in our studied population, because it is overexpressed in 81% of Hodgkin lymphoma cases and in more than 50% of cases, it might be able to activate its cellular e.ectors. Bcl-2 staining observed in 44% of our cases could represent a failure in bcl-2 down-regulation that leads to a rescue event in defective germinal center B-cells, that allows them to develop into Reed-Sternberg and Hodgkin cells.Fil: Chabay, Paola Andrea. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pesce, Pablo Adrian. No especifíca;Fil: de Matteo, Elena Noemí. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: García Lombardi, Mercedes. No especifíca;Fil: Rey, Guadalupe. No especifíca;Fil: Preciado, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; ArgentinaLippincott Williams2006-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/245205Chabay, Paola Andrea; Pesce, Pablo Adrian; de Matteo, Elena Noemí; García Lombardi, Mercedes; Rey, Guadalupe; et al.; No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas; Lippincott Williams; Journal Of Pediatric Hematology Oncology; 28; 9; 9-2006; 552-5581077-4114CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.lww.com/jpho-online/abstract/2006/09000/no_influence_of_bcl_2,_p53,_and_p21waf1_protein.2.aspxinfo:eu-repo/semantics/altIdentifier/doi/10.1097/01.mph.0000212955.43350.bbinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:18:06Zoai:ri.conicet.gov.ar:11336/245205instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:18:07.183CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas |
title |
No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas |
spellingShingle |
No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas Chabay, Paola Andrea HODGKIN LYMPHOMA CHILDREN OUTCOME |
title_short |
No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas |
title_full |
No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas |
title_fullStr |
No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas |
title_full_unstemmed |
No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas |
title_sort |
No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas |
dc.creator.none.fl_str_mv |
Chabay, Paola Andrea Pesce, Pablo Adrian de Matteo, Elena Noemí García Lombardi, Mercedes Rey, Guadalupe Preciado, María Victoria |
author |
Chabay, Paola Andrea |
author_facet |
Chabay, Paola Andrea Pesce, Pablo Adrian de Matteo, Elena Noemí García Lombardi, Mercedes Rey, Guadalupe Preciado, María Victoria |
author_role |
author |
author2 |
Pesce, Pablo Adrian de Matteo, Elena Noemí García Lombardi, Mercedes Rey, Guadalupe Preciado, María Victoria |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
HODGKIN LYMPHOMA CHILDREN OUTCOME |
topic |
HODGKIN LYMPHOMA CHILDREN OUTCOME |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.5 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
In Argentina, lymphomas account for 13.6% of all pediatric tumors and 47% of them are Hodgkin lymphoma. Previous studies of lymphoma series have reported the expression of apoptotic and cell cycle proteins. Our aim was to study these markers in our pediatric patients and correlate them with their outcome. Immunohistochemical staining with monoclonal antibodies anti-p53, bcl-2, p21waf1, and mdm2 were performed on formalin fixed paraffin-embedded Hodgkin lymphoma lymph node biopsies from 54 pediatric patients. The analyzed oncogenes p53, bcl-2, p21waf1, and mdm2 exhibited 81%, 44%, 76%, and 90% positive staining, respectively. The most prevalent p53/p21waf1 expression pattern was p53+/p21waf1+, in 57% of cases, whereas concerning p53/mdm2 expression pattern p53+/mdm2+ was observed in 61% of cases. We failed to .nd any statistically signi.cant correlation between oncogene expression and patient’s survival. It seems that p53 plays an important role in lymphomagenesis in our studied population, because it is overexpressed in 81% of Hodgkin lymphoma cases and in more than 50% of cases, it might be able to activate its cellular e.ectors. Bcl-2 staining observed in 44% of our cases could represent a failure in bcl-2 down-regulation that leads to a rescue event in defective germinal center B-cells, that allows them to develop into Reed-Sternberg and Hodgkin cells. Fil: Chabay, Paola Andrea. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Pesce, Pablo Adrian. No especifíca; Fil: de Matteo, Elena Noemí. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: García Lombardi, Mercedes. No especifíca; Fil: Rey, Guadalupe. No especifíca; Fil: Preciado, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina |
description |
In Argentina, lymphomas account for 13.6% of all pediatric tumors and 47% of them are Hodgkin lymphoma. Previous studies of lymphoma series have reported the expression of apoptotic and cell cycle proteins. Our aim was to study these markers in our pediatric patients and correlate them with their outcome. Immunohistochemical staining with monoclonal antibodies anti-p53, bcl-2, p21waf1, and mdm2 were performed on formalin fixed paraffin-embedded Hodgkin lymphoma lymph node biopsies from 54 pediatric patients. The analyzed oncogenes p53, bcl-2, p21waf1, and mdm2 exhibited 81%, 44%, 76%, and 90% positive staining, respectively. The most prevalent p53/p21waf1 expression pattern was p53+/p21waf1+, in 57% of cases, whereas concerning p53/mdm2 expression pattern p53+/mdm2+ was observed in 61% of cases. We failed to .nd any statistically signi.cant correlation between oncogene expression and patient’s survival. It seems that p53 plays an important role in lymphomagenesis in our studied population, because it is overexpressed in 81% of Hodgkin lymphoma cases and in more than 50% of cases, it might be able to activate its cellular e.ectors. Bcl-2 staining observed in 44% of our cases could represent a failure in bcl-2 down-regulation that leads to a rescue event in defective germinal center B-cells, that allows them to develop into Reed-Sternberg and Hodgkin cells. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-09 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/245205 Chabay, Paola Andrea; Pesce, Pablo Adrian; de Matteo, Elena Noemí; García Lombardi, Mercedes; Rey, Guadalupe; et al.; No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas; Lippincott Williams; Journal Of Pediatric Hematology Oncology; 28; 9; 9-2006; 552-558 1077-4114 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/245205 |
identifier_str_mv |
Chabay, Paola Andrea; Pesce, Pablo Adrian; de Matteo, Elena Noemí; García Lombardi, Mercedes; Rey, Guadalupe; et al.; No Influence of bcl-2, p53, and p21 waf1 Protein Expression on the Outcome of Pediatric Hodgkin Lymphomas; Lippincott Williams; Journal Of Pediatric Hematology Oncology; 28; 9; 9-2006; 552-558 1077-4114 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://journals.lww.com/jpho-online/abstract/2006/09000/no_influence_of_bcl_2,_p53,_and_p21waf1_protein.2.aspx info:eu-repo/semantics/altIdentifier/doi/10.1097/01.mph.0000212955.43350.bb |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Lippincott Williams |
publisher.none.fl_str_mv |
Lippincott Williams |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |