Genomic deletions explain the generation of alternative BRAF isoforms conferring resistance to MAPK inhibitors in melanoma
Mostra el registre complet Registre parcial de l'ítem
- dc.contributor.author Aya, Francisco
- dc.contributor.author Lanuza Gracia, Pablo
- dc.contributor.author González-Pérez, Abel
- dc.contributor.author Bonnal, Sophie
- dc.contributor.author Mancini, Estefanía
- dc.contributor.author López Bigas, Núria
- dc.contributor.author Arance, Ana
- dc.contributor.author Valcárcel, J. (Juan)
- dc.date.accessioned 2024-06-05T06:15:46Z
- dc.date.available 2024-06-05T06:15:46Z
- dc.date.issued 2024
- dc.description.abstract Resistance to MAPK inhibitors (MAPKi), the main cause of relapse in BRAF-mutant melanoma, is associated with the production of alternative BRAF mRNA isoforms (altBRAFs) in up to 30% of patients receiving BRAF inhibitor monotherapy. These altBRAFs have been described as being generated by alternative pre-mRNA splicing, and splicing modulation has been proposed as a therapeutic strategy to overcome resistance. In contrast, we report that altBRAFs are generated through genomic deletions. Using different in vitro models of altBRAF-mediated melanoma resistance, we demonstrate the production of altBRAFs exclusively from the BRAF V600E allele, correlating with corresponding genomic deletions. Genomic deletions are also detected in tumor samples from melanoma and breast cancer patients expressing altBRAFs. Along with the identification of altBRAFs in BRAF wild-type and in MAPKi-naive melanoma samples, our results represent a major shift in our understanding of mechanisms leading to the generation of BRAF transcripts variants associated with resistance in melanoma.
- dc.format.mimetype application/pdf
- dc.identifier.citation Aya F, Lanuza-Gracia P, González-Pérez A, Bonnal S, Mancini E, López-Bigas N, et al. Genomic deletions explain the generation of alternative BRAF isoforms conferring resistance to MAPK inhibitors in melanoma. Cell Rep. 2024 Apr 23;43(4):114048. DOI: 10.1016/j.celrep.2024.114048
- dc.identifier.doi http://dx.doi.org/10.1016/j.celrep.2024.114048
- dc.identifier.issn 2211-1247
- dc.identifier.uri http://hdl.handle.net/10230/60351
- dc.language.iso eng
- dc.publisher Elsevier
- dc.relation.ispartof Cell Rep. 2024 Apr 23;43(4):114048
- dc.rights © 2024 Center for Genomic Regulation. Published by Elsevier Inc. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
- dc.rights.accessRights info:eu-repo/semantics/openAccess
- dc.rights.uri http://creativecommons.org/licenses/by-nc/4.0/
- dc.subject.keyword BRAF
- dc.subject.keyword CP: Cancer
- dc.subject.keyword CP: Genomics
- dc.subject.keyword Alternative splicing
- dc.subject.keyword Genomic deletions
- dc.subject.keyword Melanoma
- dc.subject.keyword Skin cancer
- dc.subject.keyword Targeted therapy
- dc.subject.keyword Therapy resistance
- dc.title Genomic deletions explain the generation of alternative BRAF isoforms conferring resistance to MAPK inhibitors in melanoma
- dc.type info:eu-repo/semantics/article
- dc.type.version info:eu-repo/semantics/publishedVersion