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dc.contributor.author | Garranzo Asensio, María | - |
dc.contributor.author | Guzmán-Aránguez, Ana I. | - |
dc.contributor.author | Povés, Carmen | - |
dc.contributor.author | Fernandez-Aceñero, M. Jesús | - |
dc.contributor.author | Montero-Calle, Ana | - |
dc.contributor.author | Cerón, María Ángeles | - |
dc.contributor.author | Fernández-Díez, Servando | - |
dc.contributor.author | Rodríguez, Nuria | - |
dc.contributor.author | Gómez de Cedrón, Marta | - |
dc.contributor.author | Ramírez de Molina, Ana | - |
dc.contributor.author | Domínguez, Gemma | - |
dc.contributor.author | Barderas, Rodrigo | - |
dc.date.accessioned | 2020-04-15T08:26:27Z | - |
dc.date.available | 2020-04-15T08:26:27Z | - |
dc.date.issued | 2019-09-19 | - |
dc.identifier.citation | Scientific Reports 9: 13547 (2019) | - |
dc.identifier.uri | http://hdl.handle.net/10261/207595 | - |
dc.description | © The Author(s) 2019. | - |
dc.description.abstract | The p53-family is tightly regulated at transcriptional level. Due to alternative splicing, up to 40 different theoretical proteoforms have been described for p73 and at least 20 and 10 for p53 and p63, respectively. However, only the canonical proteins have been evaluated as autoantibody targets in cancer patients for diagnosis. In this study, we have cloned and expressed in vitro the most upregulated proteoforms of p73, ΔNp73α and ΔNp73β, for the analysis of their seroreactivity by a developed luminescence based immunoassay test using 145 individual plasma from colorectal cancer, premalignant individuals and healthy controls. ∆Np73α seroreactivity showed the highest diagnostic ability to discriminate between groups. The combination of ∆Np73α, ∆Np73β and p73 proteoforms seroreactivity were able to improve their individual diagnostic ability. Competitive inhibition experiments further demonstrated the presence of unique specific epitopes in ΔNp73 isoforms not present in p73, with several colorectal patients showing unique and specific seroreactivity to the ΔNp73 proteoforms. Overall, we have increased the complexity of the humoral immune response to the p53-family in cancer patients, showing that the proteoforms derived from the alternative splicing of p73 possess a higher diagnostic ability than the canonical protein, which might be extensive for p53 and p63 proteins. | - |
dc.description.sponsorship | This work was supported by the Ramon y Cajal programme of the MINECO and the financial support of the PI17CIII/00045 grant from the AES-ISCIII program to R.B., cofounded by FEDER funds. G.D. acknowledges the financial support of PI15/00246 grant of the FIS and Cátedra UAM-Roche en Medicina de Innovación. M.G-A. was supported by a contract of the Programa Operativo de Empleo Juvenil y la Iniciativa de Empleo Juvenil (YEI) with the participation of the Consejería de Educación, Juventud y Deporte de la Comunidad de Madrid y del Fondo Social Europeo. We thank the excellent technical support of Maricruz Sánchez. A.M-C. is a recipient of a FPU fellowship from the Ministerio de Educación, Cultura y Deporte. | - |
dc.language | eng | - |
dc.publisher | Springer Nature | - |
dc.rights | openAccess | - |
dc.subject | Diagnostic markers | - |
dc.subject | Tumour biomarkers | - |
dc.title | The specific seroreactivity to ∆Np73 isoforms shows higher diagnostic ability in colorectal cancer patients than the canonical p73 protein | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1038/s41598-019-49960-x | - |
dc.relation.publisherversion | http://dx.doi.org/10.1038/s41598-019-49960-x | - |
dc.identifier.e-issn | 2045-2322 | - |
dc.date.updated | 2020-04-15T08:26:27Z | - |
dc.rights.license | http://creativecommons.org/licenses/by/4.0/ | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.contributor.funder | Instituto de Salud Carlos III | - |
dc.contributor.funder | European Commission | - |
dc.contributor.funder | Comunidad de Madrid | - |
dc.contributor.funder | Ministerio de Educación, Cultura y Deporte (España) | - |
dc.relation.csic | Sí | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100004587 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/100012818 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003176 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000780 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.identifier.pmid | 31537884 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
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Specifc_Garranzo_Asensio_Art2019.pdf | 2,45 MB | Adobe PDF | Visualizar/Abrir |
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