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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2021
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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) |
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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 |
work_keys_str_mv |
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_version_ |
1718375765392752640 |