ArticleJournal of experimental & clinical cancer research : CR2026
BRAF
Article in Journal of experimental & clinical cancer research : CR, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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17 authors.
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Abstract
backgroundDrug resistance and lack of predicting biomarkers are a major challenge for cancer therapy. The combination of a BRAF inhibitor (BRAFi) together with an anti-EGFR inhibitor (EGFRi) represents a standard of care approach in BRAFV600E metastatic colorectal cancer (mCRC) patients. However, predictive biomarkers of sensitivity, that could support patient selection for treatment with this combination, are currently missing. Therefore, our goal is to identify those biomarkers associated with response to the combination of BRAFi and EGFRi.
methodsHere, we established a living biobank of BRAFV600E colorectal cancer patients derived organoids (PDOs) and categorized them as sensitive or resistant to the combination of BRAFi and EGFRi using short term proliferation assays. To elucidate biomarkers of response, drug testing was integrated with genomic, transcriptomic, proteomic and single-cell transcriptmic profiling of our PDOs.
resultsHere we revealed the PTEN/PIK3CA/p-AKT axis as mechanism of primary sensitivity while ROS pathway inhibition as driver for primary resistance. Finally, we newly discovered histology and cellular composition as biomarker of drug response.
conclusionThese data align with recently published clinical trial data, thus reinforcing the proof that PDOs can be used for biomarker identification. The use of histology and cellular compositions as biomarkers has to be further validated in clinical setting.
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