Germline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border

Correspondence: eamfalcon@pol.una.py; Tel.: +595-971-336246.

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Hlavní autor: Falcón de Legal, Edith Ana María (author)
Další autoři: Ascurra de Duarte, Marta Elvira (author), Vega Paredes, Rosa (author), Sade, Elis (author), Monteiro Schaerer, Magna María (author), Paraízo, Mariana (author), Colmán, Magalí (author), Gutiérrez Florentín, Ángeles (author), Ojeda, César (author), Legal Ayala, Horacio Andrés (author), Ries, Andreas (author)
Médium: article
Jazyk:angličtina
Vydáno: 2025
Témata:
On-line přístup:https://doi.org/10.3390/curroncol32060333
http://hdl.handle.net/20.500.14066/4610
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author Falcón de Legal, Edith Ana María
author2 Ascurra de Duarte, Marta Elvira
Vega Paredes, Rosa
Sade, Elis
Monteiro Schaerer, Magna María
Paraízo, Mariana
Colmán, Magalí
Gutiérrez Florentín, Ángeles
Ojeda, César
Legal Ayala, Horacio Andrés
Ries, Andreas
author2_role author
author
author
author
author
author
author
author
author
author
author_browse Ascurra de Duarte, Marta Elvira
Colmán, Magalí
Falcón de Legal, Edith Ana María
Gutiérrez Florentín, Ángeles
Legal Ayala, Horacio Andrés
Monteiro Schaerer, Magna María
Ojeda, César
Paraízo, Mariana
Ries, Andreas
Sade, Elis
Vega Paredes, Rosa
author_facet Falcón de Legal, Edith Ana María
Ascurra de Duarte, Marta Elvira
Vega Paredes, Rosa
Sade, Elis
Monteiro Schaerer, Magna María
Paraízo, Mariana
Colmán, Magalí
Gutiérrez Florentín, Ángeles
Ojeda, César
Legal Ayala, Horacio Andrés
Ries, Andreas
author_role author
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dc.creator.none.fl_str_mv Falcón de Legal, Edith Ana María
Ascurra de Duarte, Marta Elvira
Vega Paredes, Rosa
Sade, Elis
Monteiro Schaerer, Magna María
Paraízo, Mariana
Colmán, Magalí
Gutiérrez Florentín, Ángeles
Ojeda, César
Legal Ayala, Horacio Andrés
Ries, Andreas
dc.date.accessioned.none.fl_str_mv 2025-07-16T20:55:27Z
dc.date.available.none.fl_str_mv 2025-07-16T20:55:27Z
dc.date.issued.none.fl_str_mv 2025-06-06
dc.format.extent.es.fl_str_mv 10 páginas
dc.identifier.citation.en.fl_str_mv Falcon-de Legal, E., Ascurra, M., Vega-Paredes, R., Sade, E., Monteiro, M., Paraízo, M., Colman, M., Florentin, A. G., Ojeda, C., Legal-Ayala, H., & Ries, A. (2025). Germline TP53 p.R337H and XAF1 p.E134* variants: prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border. Current Oncology, 32(6), Article 333. https://doi.org/10.3390/curroncol32060333
dc.identifier.doi.es.fl_str_mv 10.3390/curroncol32060333
dc.identifier.essn.es.fl_str_mv 1718-7729
dc.identifier.other.es.fl_str_mv https://doi.org/10.3390/curroncol32060333
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/20.500.14066/4610
dc.language.iso.es.fl_str_mv eng
dc.publisher.es.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.rights.*.fl_str_mv Atribución 4.0 Internacional
dc.rights.accessRights.es.fl_str_mv info:eu-repo/semantics/openAccess
dc.rights.uri.*.fl_str_mv http://creativecommons.org/licenses/by/4.0/
dc.subject.mesh.en.fl_str_mv Brazil/epidemiology
Female
Humans
Male
Germ-Line Mutation
Child
Paraguay/epidemiology
Prevalence
Neoplasm proteins/genetics
Tumor suppressor protein p53/genetics
dc.subject.mesh.es.fl_str_mv Brasil/epidemiología
Femenino
Humanos
Masculino
Mutación de Línea Germinal
Niño
Paraguay/epidemiología
Prevalencia
Proteínas de neoplasias/genética
Proteínas supresoras de tumor/genética
dc.subject.other.es.fl_str_mv Adrenal gland
Cancer
Li-Fraumeni syndrome
TP53 p.R337H variant
XAF1 p.E134* variant
dc.title.es.fl_str_mv Germline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border
dc.type.es.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
description Correspondence: eamfalcon@pol.una.py; Tel.: +595-971-336246.
eu_rights_str_mv openAccess
format article
id CONACYT_2ec1f6d5493be7078d11d51f3bec8a39
identifier_str_mv Falcon-de Legal, E., Ascurra, M., Vega-Paredes, R., Sade, E., Monteiro, M., Paraízo, M., Colman, M., Florentin, A. G., Ojeda, C., Legal-Ayala, H., & Ries, A. (2025). Germline TP53 p.R337H and XAF1 p.E134* variants: prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border. Current Oncology, 32(6), Article 333. https://doi.org/10.3390/curroncol32060333
10.3390/curroncol32060333
1718-7729
language eng
network_acronym_str CONACYT
network_name_str Repositorio Institucional CONACYT
oai_identifier_str oai:repositorio.conacyt.gov.py:20.500.14066/4610
publishDate 2025
publishDateSort 2025
repository.mail.fl_str_mv repositorio.institucional@conacyt.gov.py
repository.name.fl_str_mv Repositorio Institucional CONACYT
repository_id_str
rights_invalid_str_mv Atribución 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
spelling 401600102600875e0d64-46ad-42cf-8970-2c78005da222600dbf9fd03-f094-4a8a-8354-25b0c8d6d60c6007766000000-0002-5078-7214dca992d0-af01-443d-9b41-d029f7973e3d600ee920106-99c9-4937-b6a4-bb04c3dc64c86003626870b-9efd-466e-9e0c-339d0d78ae98600ed1d4216-a238-4bfa-a3d6-8d99cb39fa9d6006466009456002025-07-16T20:55:27Z2025-07-16T20:55:27Z2025-06-06Falcon-de Legal, E., Ascurra, M., Vega-Paredes, R., Sade, E., Monteiro, M., Paraízo, M., Colman, M., Florentin, A. G., Ojeda, C., Legal-Ayala, H., & Ries, A. (2025). Germline TP53 p.R337H and XAF1 p.E134* variants: prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border. Current Oncology, 32(6), Article 333. https://doi.org/10.3390/curroncol32060333https://doi.org/10.3390/curroncol32060333http://hdl.handle.net/20.500.14066/461010.3390/curroncol320603331718-7729Correspondence: eamfalcon@pol.una.py; Tel.: +595-971-336246.This article belongs to the Special Issue Updates on Diagnosis and Treatment for Pediatric Solid Tumors.Adrenal cortex carcinoma (ACC) in children is a rare tumor that is probably of multifactorial origin and is mainly associated with genetic and environmental alterations. In the south and part of the southeast of Brazil, as well as in the Paraguayan region bordering the Brazilian State of Paraná, ACC prevalence is higher than in any other country, which is associated with the high prevalence of the TP53 p.R337H variant in Paraná (0.30%), Santa Catarina (0.249%), cities around Campinas-SP (0.21%), and the Paraguayan cities on the border with Paraná (0.05%). Recent research suggests that the co-segregation of XAF1-E134* and TP53-R337H mutations leads to a more aggressive cancer phenotype than TP53-R337H alone. Breast cancer may be mildly influenced by co-segregation with XAF1 p.E134*, and this variant can also confer risk for sarcoma. Objectives: The objectives of this study were to (1) estimate the prevalence of the germline TP53 p.R337H and XAF1 p.E134* variants in Paraguay (excluding cities on the border with Paraná State, Brazil) and (2) estimate whether the ethnic origin of TP53 p.R337H carriers in Paraguay is similar to that of ethnic groups in Paraná (possible Portuguese/Spanish origin). Materials and methods: DNA tests for the identification of TP53 p.R337H were carried out from 2016 to 2019 at the Bio-Materials Laboratory of Facultad Politecnica, UNA, and at the Research Center in Biotechnology and Informatics (CEBIOTEC), Asunción, Paraguay. Polymerase chain reaction followed by restriction enzyme digestion (PCR-RFLP) was used to identify TP53 p.R337H, and real-time PCR (RT-PCR) was employed for XAF1 p.E134*. Peripheral blood samples from 40,000 Paraguayan newborns (NBs) were used for the TP53 p.R337H tests. The XAF1 p.E134* tests (RT-PCR) were performed on samples from 2000 Paraguayan newborns at the Pelé Pequeno Principe Research Institute, Curitiba, PR, Brazil. Results: The TP53 p.R337H variant was not found in any of the 14 Paraguayan departments investigated. A total of 12 of the 2000 Paraguayan NBs were positive for one XAF1 p.E134* allele. Conclusions: The hypothesis of Spanish immigrants carrying p.R337H to Paraguay was disproved. TP53 p.R337H neonatal testing in Paraguay is not recommended, except when there are families with Brazilian ancestry presenting cancer cases. Additional epidemiological studies are required to determine the likelihood of the identified prevalence of the XAF1 p.E134* allele (1/153) in NBs from Paraguay without TP53 p.R337H to present cancer risk. This study complements the first national initiative for the DNA screening of newborns aimed at mapping the TP53 p.R337H and XAF1 p.E134* variants in Paraguay (based on the regions of residence of the newborns).Consejo Nacional de Ciencia y TecnologíaPrograma Paraguayo para el Desarrollo de la Ciencia y Tecnología. Programa Nacional de Incentivo a los Investigadores10 páginasengMultidisciplinary Digital Publishing InstituteAtribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccess© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/ licenses/by/4.0/).Brasil/epidemiologíaFemeninoHumanosMasculinoMutación de Línea GerminalNiñoParaguay/epidemiologíaPrevalenciaProteínas de neoplasias/genéticaProteínas supresoras de tumor/genéticaBrazil/epidemiologyFemaleHumansMaleGerm-Line MutationChildParaguay/epidemiologyPrevalenceNeoplasm proteins/geneticsTumor suppressor protein p53/geneticsAdrenal glandCancerLi-Fraumeni syndromeTP53 p.R337H variantXAF1 p.E134* variantGermline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian borderinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion6Current Oncology32Falcón de Legal, Edith Ana MaríaAscurra de Duarte, Marta ElviraVega Paredes, RosaSade, ElisMonteiro Schaerer, Magna MaríaParaízo, MarianaColmán, MagalíGutiérrez Florentín, ÁngelesOjeda, CésarLegal Ayala, Horacio AndrésRies, AndreasORIGINALGermline TP53 p.R337H and XAF1 p.E134 variants: prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border.pdfGermline TP53 p.R337H and XAF1 p.E134 variants: prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border.pdfArtículo científicoapplication/pdf494518http://repositorio.conacyt.gov.py/bitstream/20.500.14066/4610/1/Germline%20TP53%20p.R337H%20and%20XAF1%20p.E134%20variants%3a%20prevalence%20in%20Paraguay%20and%20comparison%20with%20rates%20in%20Brazilian%20state%20of%20Paran%c3%a1%20and%20previous%20findings%20at%20the%20Paraguayan%e2%80%93Brazilian%20border.pdf98fe45342741b5cb250eb1bbbbdc8588MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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spellingShingle Germline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border
Falcón de Legal, Edith Ana María
Brasil/epidemiología
Femenino
Humanos
Masculino
Mutación de Línea Germinal
Niño
Paraguay/epidemiología
Prevalencia
Proteínas de neoplasias/genética
Proteínas supresoras de tumor/genética
Brazil/epidemiology
Female
Humans
Male
Germ-Line Mutation
Child
Paraguay/epidemiology
Prevalence
Neoplasm proteins/genetics
Tumor suppressor protein p53/genetics
Adrenal gland
Cancer
Li-Fraumeni syndrome
TP53 p.R337H variant
XAF1 p.E134* variant
status_str publishedVersion
title Germline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border
title_full Germline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border
title_fullStr Germline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border
title_full_unstemmed Germline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border
title_short Germline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border
title_sort Germline TP53 p.R337H and XAF1 p.E134* variants : prevalence in Paraguay and comparison with rates in Brazilian state of Paraná and previous findings at the Paraguayan–Brazilian border
topic Brasil/epidemiología
Femenino
Humanos
Masculino
Mutación de Línea Germinal
Niño
Paraguay/epidemiología
Prevalencia
Proteínas de neoplasias/genética
Proteínas supresoras de tumor/genética
Brazil/epidemiology
Female
Humans
Male
Germ-Line Mutation
Child
Paraguay/epidemiology
Prevalence
Neoplasm proteins/genetics
Tumor suppressor protein p53/genetics
Adrenal gland
Cancer
Li-Fraumeni syndrome
TP53 p.R337H variant
XAF1 p.E134* variant
url https://doi.org/10.3390/curroncol32060333
http://hdl.handle.net/20.500.14066/4610