Cited by 551Hippo pathway signaling and YAP/TAZMelanoma and MAPK PathwaysProtein Kinase Regulation and GTPase Signaling

The Hippo effector YAP promotes resistance to RAF- and MEK-targeted cancer therapies

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Lin, Luping, Sabnis, Amit J, Chan, Elton, Olivas, Victor, Cade, Lindsay, Pazarentzos, Evangelos, Asthana, Saurabh, Neel, Dana +25 more·2015·Nature Genetics

Abstract

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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Crossref · 10.1038/ng.3218

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  • YAP/TAZ plays a crucial role in intrinsic and acquired resistance to inhibitors targeting the RTK/MAPK pathway.

    “Particularly, YAP/TAZ plays a crucial role in the intrinsic and acquired resistance to inhibitors targeting RTK/MAPK pathway (24, 28–32).”

    From YAP/TAZ mediates resistance to KRAS inhibitors through inhibiting proapoptosis and activating the SLC7A5/mTOR axis (2024) · cites this paper as [24]

    The paper reports that YAP1 suppression overcame intrinsic resistance to RAF and MEK inhibitors, and that TAZ overexpression reduced sensitivity to those drugs (Abstract; page not available in our copy). It also found increased YAP in a small subset of paired tumors at acquired resistance, but describes this as suggesting a possible contribution rather than establishing a crucial role. The evidence does not extend to RTK-targeted inhibitors generally or establish TAZ's role in acquired resistance. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Dysregulation of the Hippo-YAP/TAZ pathway is a central resistance mechanism in various tumors to multiple targeted therapies, chemotherapies, hormonal therapies, and immunotherapies.

    “Emerging evidence suggests that dysregulation of the Hippo-YAP/TAZ pathway is a central resistance mechanism in various tumors to multiple targeted therapies, chemotherapies, hormonal therapies, and immunotherapies (23–27).”

    From YAP/TAZ mediates resistance to KRAS inhibitors through inhibiting proapoptosis and activating the SLC7A5/mTOR axis (2024) · cites this paper as [24]

    The paper’s Abstract (page not provided) identifies YAP as a resistance mechanism for RAF- and MEK-targeted therapies across several BRAF- and RAS-mutant tumor types, and reports that TAZ overexpression reduced sensitivity to those inhibitors in one cell line. It does not establish resistance to chemotherapies, hormonal therapies, or immunotherapies, so it supports only the targeted-therapy portion of the citing sentence. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Dysregulation of the Hippo-YAP/TAZ pathway serves as a central resistance mechanism in multiple therapies, particularly intrinsic and acquired resistance to RTK, RAF, or MEK inhibitors.

    “accumulating evidence suggests that the dysregulation of the Hippo-YAP/TAZ pathway serves as a central resistance mechanism in multiple therapies, particularly in the intrinsic and acquired resistance to RTK, RAF, or MEK inhibitors (24, 28, 29).”

    From YAP/TAZ mediates resistance to KRAS inhibitors through inhibiting proapoptosis and activating the SLC7A5/mTOR axis (2024) · cites this paper as [24]

    The paper’s Abstract reports that YAP promotes resistance to RAF and MEK inhibitors, including intrinsic resistance in BRAF-mutant tumor models. It also reports increased YAP at acquired resistance in a small subset of paired melanoma samples, but describes that finding as suggestive. The passages do not establish resistance to RTK inhibitors or a central mechanism across multiple therapies. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • YAP1 is one of the major drivers of bypassing oncogene addiction and promoting acquired resistance to targeted therapies in several cancer types.

    “The YAP1 oncogene has been well established as one of the major drivers of bypassing oncogene addiction and promoting acquired resistance to targeted therapies in several cancer types, including pancreatic cancer, lung cancer, colorectal cancer, melanoma, and glioblastoma.9,10,38,39,40”

    From Therapeutic targeting of syndecan-1 axis overcomes acquired resistance to KRAS-targeted therapy in gastrointestinal cancers (2025) · cites this paper as [39]

    The paper reports that YAP promotes resistance to RAF and MEK inhibitors in lung, melanoma, colorectal and pancreatic cancer models (Abstract; page unavailable). It also reports increased YAP in paired melanoma samples at acquired resistance, but describes that finding as suggestive rather than establishing YAP as a major driver of acquired resistance across cancer types. The copy does not establish the claim for glioblastoma. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • YAP is known to serve as a parallel survival effector when RAF or MEK is inhibited.

    “YAP is known to serve as a parallel survival effector when RAF or MEK is inhibited [102].”

    From Differential Response and Resistance to KRAS-Targeted Therapy (2025) · cites this paper as [102]

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Authors
Lin, L., Sabnis, A. J., Chan, E., Olivas, V., Cade, L., Pazarentzos, E., Asthana, S., Neel, D., Yan, J. J., Lu, X., Pham, L., Wang, M. M., Karachaliou, N., Cao, M. G., Manzano, J. L., Ramirez, J. L., Torres, J. M. S., Buttitta, F., Rudin, C. M., Collisson, E. A., Algazi, A., Robinson, E., Osman, I., Muñoz-Couselo, E., Cortes, J., Frederick, D. T., Cooper, Z. A., McMahon, M., Marchetti, A., Rosell, R., Flaherty, K. T., Wargo, J. A., & Bivona, T. G.
Affiliations
  • University of California, San Francisco (US)
  • Institut Català d'Oncologia (ES)
  • Hospital Universitario de La Princesa (ES)
  • University of Chieti-Pescara (IT)
  • Memorial Sloan Kettering Cancer Center (US)
  • New York University (US)
  • Massachusetts General Hospital (US)
  • The University of Texas MD Anderson Cancer Center (US)
Corresponding author
Bivona, Trever G
Venue
Nature Genetics
Published
2015-02-09
Volume
47
Issue
3
Pages
250-256
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2079015343
Cited by
551
References
39
Citations by year
2026: 23 · 2025: 41 · 2024: 59 · 2023: 47 · 2022: 49 · 2021: 56 · 2020: 44 · 2019: 51 · 2018: 62 · 2017: 39 · 2016: 47 · 2015: 31
FWCI
31.81
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Cancer Institute (DP2CA174497, P30CA008748, R01CA131261, P01CA163222)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Melanoma and MAPK Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
YAP, Hippo signaling pathway, RAF inhibitors, MEK inhibitors, drug resistance, synthetic lethality, combination therapy, BRAF V600E mutation
MeSH terms
Hippo Signaling Pathway, YAP-Signaling Proteins, Animals, Female, Humans, Mutation, Phosphoproteins, Genes, ras, Transcription Factors, Biomarkers, Tumor, Mice, SCID, Mice, Inbred NOD, Protein Serine-Threonine Kinases, Drug Resistance, Neoplasm, HT29 Cells, MAP Kinase Kinase Kinases, MAP Kinase Signaling System, Cell Line, Tumor, Protein Kinase Inhibitors, Proto-Oncogene Proteins B-raf, Adaptor Proteins, Signal Transducing, Mice, Gene Knockdown Techniques, HEK293 Cells, Molecular Targeted Therapy, Heterografts

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