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Ref Type Journal Article
PMID (25665005)
Authors Lin L, Sabnis AJ, Chan E, Olivas V, Cade L, Pazarentzos E, Asthana S, Neel D, Yan JJ, Lu X, Pham L, Wang MM, Karachaliou N, Cao MG, Manzano JL, Ramirez JL, Torres JM, Buttitta F, Rudin CM, Collisson EA, Algazi A, Robinson E, Osman I, Muñoz-Couselo E, Cortes J, Frederick DT, Cooper ZA, McMahon M, Marchetti A, Rosell R, Flaherty KT, Wargo JA, Bivona TG
Title The Hippo effector YAP promotes resistance to RAF- and MEK-targeted cancer therapies.
Journal Nature genetics
Vol 47
Issue 3
Date 2015 Mar
URL
Abstract Text Resistance to RAF- and MEK-targeted therapy is a major clinical challenge. RAF and MEK inhibitors are initially but only transiently effective in some but not all patients with BRAF gene mutation and are largely ineffective in those with RAS gene mutation because of resistance. Through a genetic screen in BRAF-mutant tumor cells, we show that the Hippo pathway effector YAP (encoded by YAP1) acts as a parallel survival input to promote resistance to RAF and MEK inhibitor therapy. Combined YAP and RAF or MEK inhibition was synthetically lethal not only in several BRAF-mutant tumor types but also in RAS-mutant tumors. Increased YAP in tumors harboring BRAF V600E was a biomarker of worse initial response to RAF and MEK inhibition in patients, establishing the clinical relevance of our findings. Our data identify YAP as a new mechanism of resistance to RAF- and MEK-targeted therapy. The findings unveil the synthetic lethality of combined suppression of YAP and RAF or MEK as a promising strategy to enhance treatment response and patient survival.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
BRAF V600E melanoma sensitive TW-37 + Vemurafenib Preclinical Actionable In a preclinical study, TW-37 enhanced the inhibitory effect of Zelboraf (vemurafenib) on human melanoma cells harboring BRAF V600E in culture (PMID: 25665005). 25665005
BRAF V600E melanoma sensitive Trametinib + TW-37 Preclinical Actionable In a preclinical study, TW-37 enhanced the inhibitory effect of Mekinist (trametinib) on human melanoma cells harboring BRAF V600E in culture (PMID: 25665005). 25665005
BRAF V600E melanoma sensitive Navitoclax + Trametinib Preclinical Actionable In a preclinical study, Navitoclax (ABT-263) enhanced the inhibitory effect of Mekinist (trametinib) on human melanoma cells harboring BRAF V600E in culture (PMID: 25665005). 25665005
BRAF V600E colon cancer sensitive Navitoclax + Trametinib Preclinical Actionable In a preclinical study, Navitoclax (ABT-263) enhanced the inhibitory effect of Mekinist (trametinib) on human colon cancer cells harboring BRAF V600E in culture (PMID: 25665005). 25665005
BRAF V600E melanoma sensitive Navitoclax + Vemurafenib Preclinical Actionable In a preclinical study, Navitoclax (ABT-263) enhanced the inhibitory effect of Zelboraf (vemurafenib) on human melanoma cells harboring BRAF V600E in culture (PMID: 25665005). 25665005
BRAF V600E colon cancer sensitive Navitoclax + Vemurafenib Preclinical Actionable In a preclinical study, Navitoclax (ABT-263) enhanced the inhibitory effect of Zelboraf (vemurafenib) on human colon cancer cells harboring BRAF V600E in culture (PMID: 25665005). 25665005
BRAF V600E lung non-small cell carcinoma sensitive Trametinib + TW-37 Preclinical Actionable In a preclinical study, TW-37 enhanced the inhibitory effect of Mekinist (trametinib) on human non-small cell lung cancer cells harboring BRAF V600E in culture (PMID: 25665005). 25665005
BRAF V600E lung non-small cell carcinoma sensitive TW-37 + Vemurafenib Preclinical Actionable In a preclinical study, TW-37 enhanced the inhibitory effect of Zelboraf (vemurafenib) on human non-small cell lung cancer cells harboring BRAF V600E in culture (PMID: 25665005). 25665005
BRAF V600E lung non-small cell carcinoma sensitive Navitoclax + Trametinib Preclinical Actionable In a preclinical study, Navitoclax (ABT-263) enhanced the inhibitory effect of Mekinist (trametinib) on human non-small cell lung cancer cells harboring BRAF V600E in culture (PMID: 25665005). 25665005
BRAF V600E lung non-small cell carcinoma sensitive Navitoclax + Vemurafenib Preclinical Actionable In a preclinical study, Navitoclax (ABT-263) enhanced the inhibitory effect of Zelboraf (vemurafenib) on human non-small cell lung cancer cells harboring BRAF V600E in culture (PMID: 25665005). 25665005