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dc.contributor.authorTutuka, CSA
dc.contributor.authorAndrews, MC
dc.contributor.authorMariadason, JM
dc.contributor.authorIoannidis, P
dc.contributor.authorHudson, C
dc.contributor.authorCebon, J
dc.contributor.authorBehren, A
dc.date.accessioned2021-02-04T02:17:36Z
dc.date.available2021-02-04T02:17:36Z
dc.date.issued2017-06-28
dc.identifierpii: 10.1186/s12943-017-0684-x
dc.identifier.citationTutuka, C. S. A., Andrews, M. C., Mariadason, J. M., Ioannidis, P., Hudson, C., Cebon, J. & Behren, A. (2017). PLX8394, a new generation BRAF inhibitor, selectively inhibits BRAF in colonic adenocarcinoma cells and prevents paradoxical MAPK pathway activation. MOLECULAR CANCER, 16 (1), https://doi.org/10.1186/s12943-017-0684-x.
dc.identifier.issn1476-4598
dc.identifier.urihttp://hdl.handle.net/11343/259639
dc.description.abstractBRAF inhibitors (BRAFi) are standard of care for the treatment of BRAF V600 mutation-driven metastatic melanoma, but can lead to paradoxical activation of the mitogen-activated protein kinase (MAPK) signalling pathway. This can result in the promotion of precancerous lesions and secondary neoplasms, mainly (but not exclusively) associated with pre-existing mutations in RAS genes. We previously reported a patient with synchronous BRAF-mutated metastatic melanoma and BRAF wt /KRAS G12D-metastatic colorectal cancer (CRC), whose CRC relapsed and progressed when treated with the BRAF inhibitor dabrafenib (GSK2118436). We used tissue from the resected CRC metastasis to derive a cell line, LM-COL-1, which directly and reliably mimicked the clinical scenario including paradoxical activation of the MAPK signalling pathway resulting in increased cell proliferation upon dabrafenib treatment. Novel BRAF inhibitors (PLX8394 and PLX7904), dubbed as "paradox breakers", were developed to inhibit V600 mutated oncogenic BRAF without causing paradoxical MAPK pathway activation. In this study we used our LM-COL-1 model alongside multiple other CRC cell lines with varying mutational backgrounds to demonstrate and confirm that the paradox breaker PLX8394 retains on-target inhibition of mutated BRAF V600 without paradoxically promoting MAPK signalling.
dc.languageEnglish
dc.publisherBIOMED CENTRAL LTD
dc.titlePLX8394, a new generation BRAF inhibitor, selectively inhibits BRAF in colonic adenocarcinoma cells and prevents paradoxical MAPK pathway activation
dc.typeJournal Article
dc.identifier.doi10.1186/s12943-017-0684-x
melbourne.affiliation.departmentMedicine and Radiology
melbourne.affiliation.facultyMedicine, Dentistry & Health Sciences
melbourne.source.titleMolecular Cancer
melbourne.source.volume16
melbourne.source.issue1
dc.rights.licenseCC BY
melbourne.elementsid1217057
melbourne.contributor.authorBehren, Andreas
melbourne.contributor.authorCEBON, JONATHAN
melbourne.contributor.authorMariadason, John
melbourne.contributor.authorAndrews, Miles
dc.identifier.eissn1476-4598
melbourne.accessrightsOpen Access


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