ISOTOPE: ISOform-guided prediction of epiTOPEs in cancer.

Immunotherapies provide effective treatments for previously untreatable tumors and identifying tumor-specific epitopes can help elucidate the molecular determinants of therapy response. Here, we describe a pipeline, ISOTOPE (ISOform-guided prediction of epiTOPEs In Cancer), for the comprehensive ide...

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Autores principales: Juan L Trincado, Marina Reixachs-Solé, Judith Pérez-Granado, Tim Fugmann, Ferran Sanz, Jun Yokota, Eduardo Eyras
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Publicado: Public Library of Science (PLoS) 2021
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Acceso en línea:https://doaj.org/article/18b91b59c3034de09c1d3b6bbc285879
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spelling oai:doaj.org-article:18b91b59c3034de09c1d3b6bbc2858792021-12-02T19:57:47ZISOTOPE: ISOform-guided prediction of epiTOPEs in cancer.1553-734X1553-735810.1371/journal.pcbi.1009411https://doaj.org/article/18b91b59c3034de09c1d3b6bbc2858792021-09-01T00:00:00Zhttps://doi.org/10.1371/journal.pcbi.1009411https://doaj.org/toc/1553-734Xhttps://doaj.org/toc/1553-7358Immunotherapies provide effective treatments for previously untreatable tumors and identifying tumor-specific epitopes can help elucidate the molecular determinants of therapy response. Here, we describe a pipeline, ISOTOPE (ISOform-guided prediction of epiTOPEs In Cancer), for the comprehensive identification of tumor-specific splicing-derived epitopes. Using RNA sequencing and mass spectrometry for MHC-I associated proteins, ISOTOPE identified neoepitopes from tumor-specific splicing events that are potentially presented by MHC-I complexes. Analysis of multiple samples indicates that splicing alterations may affect the production of self-epitopes and generate more candidate neoepitopes than somatic mutations. Although there was no difference in the number of splicing-derived neoepitopes between responders and non-responders to immune therapy, higher MHC-I binding affinity was associated with a positive response. Our analyses highlight the diversity of the immunogenic impacts of tumor-specific splicing alterations and the importance of studying splicing alterations to fully characterize tumors in the context of immunotherapies. ISOTOPE is available at https://github.com/comprna/ISOTOPE.Juan L TrincadoMarina Reixachs-SoléJudith Pérez-GranadoTim FugmannFerran SanzJun YokotaEduardo EyrasPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Computational Biology, Vol 17, Iss 9, p e1009411 (2021)
institution DOAJ
collection DOAJ
language EN
topic Biology (General)
QH301-705.5
spellingShingle Biology (General)
QH301-705.5
Juan L Trincado
Marina Reixachs-Solé
Judith Pérez-Granado
Tim Fugmann
Ferran Sanz
Jun Yokota
Eduardo Eyras
ISOTOPE: ISOform-guided prediction of epiTOPEs in cancer.
description Immunotherapies provide effective treatments for previously untreatable tumors and identifying tumor-specific epitopes can help elucidate the molecular determinants of therapy response. Here, we describe a pipeline, ISOTOPE (ISOform-guided prediction of epiTOPEs In Cancer), for the comprehensive identification of tumor-specific splicing-derived epitopes. Using RNA sequencing and mass spectrometry for MHC-I associated proteins, ISOTOPE identified neoepitopes from tumor-specific splicing events that are potentially presented by MHC-I complexes. Analysis of multiple samples indicates that splicing alterations may affect the production of self-epitopes and generate more candidate neoepitopes than somatic mutations. Although there was no difference in the number of splicing-derived neoepitopes between responders and non-responders to immune therapy, higher MHC-I binding affinity was associated with a positive response. Our analyses highlight the diversity of the immunogenic impacts of tumor-specific splicing alterations and the importance of studying splicing alterations to fully characterize tumors in the context of immunotherapies. ISOTOPE is available at https://github.com/comprna/ISOTOPE.
format article
author Juan L Trincado
Marina Reixachs-Solé
Judith Pérez-Granado
Tim Fugmann
Ferran Sanz
Jun Yokota
Eduardo Eyras
author_facet Juan L Trincado
Marina Reixachs-Solé
Judith Pérez-Granado
Tim Fugmann
Ferran Sanz
Jun Yokota
Eduardo Eyras
author_sort Juan L Trincado
title ISOTOPE: ISOform-guided prediction of epiTOPEs in cancer.
title_short ISOTOPE: ISOform-guided prediction of epiTOPEs in cancer.
title_full ISOTOPE: ISOform-guided prediction of epiTOPEs in cancer.
title_fullStr ISOTOPE: ISOform-guided prediction of epiTOPEs in cancer.
title_full_unstemmed ISOTOPE: ISOform-guided prediction of epiTOPEs in cancer.
title_sort isotope: isoform-guided prediction of epitopes in cancer.
publisher Public Library of Science (PLoS)
publishDate 2021
url https://doaj.org/article/18b91b59c3034de09c1d3b6bbc285879
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AT marinareixachssole isotopeisoformguidedpredictionofepitopesincancer
AT judithperezgranado isotopeisoformguidedpredictionofepitopesincancer
AT timfugmann isotopeisoformguidedpredictionofepitopesincancer
AT ferransanz isotopeisoformguidedpredictionofepitopesincancer
AT junyokota isotopeisoformguidedpredictionofepitopesincancer
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