Cited by 717Hippo pathway signaling and YAP/TAZPancreatic and Hepatic Oncology ResearchProtein Kinase Regulation and GTPase Signaling

Yap1 Activation Enables Bypass of Oncogenic Kras Addiction in Pancreatic Cancer

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Kapoor, Avnish, Yao, Wantong, Ying, Haoqiang, Hua, Sujun, Liewen, Alison, Wang, Qiuyun, Zhong, Yi, Wu, Chang-Jiun +22 more·2014·Cell

Abstract

Activating mutations in KRAS are among the most frequent events in diverse human carcinomas and are particularly prominent in human pancreatic ductal adenocarcinoma (PDAC). An inducible Kras(G12D)-driven mouse model of PDAC has established a critical role for sustained Kras(G12D) expression in tumor maintenance, providing a model to determine the potential for and the underlying mechanisms of Kras(G12D)-independent PDAC recurrence. Here, we show that some tumors undergo spontaneous relapse and are devoid of Kras(G12D) expression and downstream canonical MAPK signaling and instead acquire amplification and overexpression of the transcriptional coactivator Yap1. Functional studies established the role of Yap1 and the transcriptional factor Tead2 in driving Kras(G12D)-independent tumor maintenance. The Yap1/Tead2 complex acts cooperatively with E2F transcription factors to activate a cell cycle and DNA replication program. Our studies, along with corroborating evidence from human PDAC models, portend a novel mechanism of escape from oncogenic Kras addiction in PDAC.

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Crossref · 10.1016/j.cell.2014.06.003

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  • Activated Yap, through genetic amplification of YAP or WNT5a-mediated dysregulation of the Hippo pathway, enables bypass of Kras suppression in Kras-driven murine pancreatic cancer and lung cancer models.

    “Previous studies have demonstrated that activated Yap, through genetic amplification of YAP- or WNT5a-mediated dysregulation of the Hippo pathway, enables bypass of Kras suppression in Kras-driven murine pancreatic cancer and lung cancer models (37–39).”

    From YAP/TAZ mediates resistance to KRAS inhibitors through inhibiting proapoptosis and activating the SLC7A5/mTOR axis (2024) · cites this paper as [38]

    The Abstract and Results section on enforced Yap1 expression report Yap1 amplification in recurrent murine pancreatic tumors and show that Yap1 can maintain those tumors after oncogenic Kras suppression. Our copy does not establish WNT5a-mediated Hippo dysregulation or bypass in a lung cancer model; its mention of lung metastases is not a lung cancer model. No page numbers are available in the indexed passages. (LLM, conf=0.86)

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  • Prior studies using inducible suppression of KRAS via RNA interference or genetically engineered inducible KrasG12D alleles have suggested that amplification of YAP1 or induction of an epithelial-to-mesenchymal transition can confer a state of RAS independence and overcome KRASG12D suppression.

    “Prior studies using inducible suppression of KRAS via RNA interference or genetically engineered inducible KrasG12D alleles (i.e., “iKras” model) have suggested that amplification of YAP1 or induction of an epithelial-to-mesenchymal transition (EMT) can confer a state of RAS independence and overcome KRASG12D suppression (35–38).”

    From Mechanisms of Resistance to Oncogenic KRAS Inhibition in Pancreatic Cancer (2024) · cites this paper as [36]

    Split into 2 atoms — 1 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

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  • YAP1 activation, through either gene amplification or activation of a non-canonical WNT pathway, is a major driver for bypassing KRAS dependency in PDAC.

    “We had previously identified YAP1 activation, through either gene amplification or activation of a non-canonical WNT pathway, as a major driver for bypassing KRAS dependency in PDAC.9,11”

    From Therapeutic targeting of syndecan-1 axis overcomes acquired resistance to KRAS-targeted therapy in gastrointestinal cancers (2025) · cites this paper as [9]

    The Results section ('Yap1 is amplified in iKras− relapse tumors and required for tumor growth'; page unavailable) supports YAP1 amplification-driven bypass of Kras dependence in PDAC. The cited paper also shows that enforced Yap1 expression permits tumor maintenance after Kras extinction, but the passages do not support activation through a non-canonical WNT pathway as a mechanism. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Activation of YAP1 oncogene drives resistance to genetic inactivation of KRAS* in a GEM model of PDAC, confirmed in KRAS*-driven CRC.

    “Using a genetically engineered mouse (GEM) model of PDAC driven by inducible KRASG12D, we recently demonstrated that activation of the YAP1 oncogene drives resistance to genetic inactivation of KRAS∗, a finding further confirmed in KRAS∗-driven colorectal cancer (CRC).”

    From Therapeutic targeting of syndecan-1 axis overcomes acquired resistance to KRAS-targeted therapy in gastrointestinal cancers (2025) · cites this paper as [9]

    The Introduction and Results (page numbers unavailable) describe an inducible KrasG12D mouse model of PDAC in which Yap1 activation enables tumor growth after KrasG12D extinction. The copy does not establish the claimed confirmation in KRAS-driven colorectal cancer; its Discussion mentions KRAS-dependent human cancer cells without identifying them as CRC. (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 [9]

    The Discussion (page unavailable) reports that Yap1 enables pancreatic tumors to escape dependence on oncogenic Kras and describes this as a potential mechanism of resistance to Kras inhibition. It presents a similar role in other malignancies as a possibility, not an established finding, and does not establish YAP1-driven acquired resistance to targeted therapies across the other cancer types listed. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

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Authors
Kapoor, A., Yao, W., Ying, H., Hua, S., Liewen, A., Wang, Q., Zhong, Y., Wu, C.-J., Sadanandam, A., Hu, B., Chang, Q., Chu, G. C., Al-Khalil, R., Jiang, S., Xia, H., Fletcher-Sananikone, E., Lim, C., Horwitz, G. I., Viale, A., Pettazzoni, P., Sanchez, N., Wang, H., Protopopov, A., Zhang, J., Heffernan, T., Johnson, R. L., Chin, L., Wang, Y. A., Draetta, G., & DePinho, R. A.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • Institute of Cancer Research (GB)
  • Brigham and Women's Hospital (US)
Corresponding author
  • Ying, Haoqiang
  • DePinho, Ronald A.
Venue
Cell
Publisher
Elsevier BV
Published
2014-07
Volume
158
Issue
1
Pages
185-197
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2157912474
Cited by
716
References
59
Citations by year
2026: 29 · 2025: 45 · 2024: 65 · 2023: 67 · 2022: 56 · 2021: 74 · 2020: 63 · 2019: 70 · 2018: 59 · 2017: 60 · 2016: 49 · 2015: 62 · 2014: 16
FWCI
31.06
Type
journal article
Language
en
Update notices
erratum (2019-11-14)
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Funders
  • National Institute for Health and Care Research
  • National Cancer Institute (CA-16672, U01CA084313, P30CA016672, P01CA117969)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R56DK094865, R01DK102611)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
YAP, TEAD2, KRAS G12D, pancreatic ductal adenocarcinoma, tumor recurrence, MAPK signaling, E2F transcription factors, cell cycle, DNA replication, transcriptional coactivator
MeSH terms
YAP-Signaling Proteins, TEA Domain Transcription Factors, Adenocarcinoma, Animals, Cell Cycle, Disease Models, Animal, DNA Replication, DNA-Binding Proteins, Humans, Pancreatic Neoplasms, Phosphoproteins, Proto-Oncogene Proteins, Transcription Factors, Proto-Oncogene Proteins p21(ras), ras Proteins, Cell Cycle Proteins, Carcinoma, Pancreatic Ductal, Cell Line, Tumor, Adaptor Proteins, Signal Transducing, E2F Transcription Factors, Mice

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