DOK2 inhibits EGFR-mutated lung adenocarcinoma.

dc.contributor.author

Berger, Alice H

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Chen, Ming

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Morotti, Alessandro

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Janas, Justyna A

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Niki, Masaru

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Bronson, Roderick T

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Taylor, Barry S

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Ladanyi, Marc

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Van Aelst, Linda

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Politi, Katerina

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Varmus, Harold E

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Pandolfi, Pier Paolo

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2019-03-22T01:17:04Z

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2019-03-22T01:17:04Z

dc.date.issued

2013-01

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2019-03-22T01:17:00Z

dc.description.abstract

Somatic mutations in the EGFR proto-oncogene occur in ~15% of human lung adenocarcinomas and the importance of EGFR mutations for the initiation and maintenance of lung cancer is well established from mouse models and cancer therapy trials in human lung cancer patients. Recently, we identified DOK2 as a lung adenocarcinoma tumor suppressor gene. Here we show that genomic loss of DOK2 is associated with EGFR mutations in human lung adenocarcinoma, and we hypothesized that loss of DOK2 might therefore cooperate with EGFR mutations to promote lung tumorigenesis. We tested this hypothesis using genetically engineered mouse models and find that loss of Dok2 in the mouse accelerates lung tumorigenesis initiated by oncogenic EGFR, but not that initiated by mutated Kras. Moreover, we find that DOK2 participates in a negative feedback loop that opposes mutated EGFR; EGFR mutation leads to recruitment of DOK2 to EGFR and DOK2-mediated inhibition of downstream activation of RAS. These data identify DOK2 as a tumor suppressor in EGFR-mutant lung adenocarcinoma.

dc.identifier

PONE-D-13-35470

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1932-6203

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1932-6203

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https://hdl.handle.net/10161/18171

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eng

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Public Library of Science (PLoS)

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PloS one

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10.1371/journal.pone.0079526

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Cell Line

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Animals

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Mice, Transgenic

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Humans

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Mice

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Adenocarcinoma

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Lung Neoplasms

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Epidermal Growth Factor

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ras Proteins

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Extracellular Signal-Regulated MAP Kinases

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Adaptor Proteins, Signal Transducing

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Tumor Suppressor Proteins

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Phosphoproteins

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Genomics

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Mutation

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Male

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Gene Knockout Techniques

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Carcinogenesis

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ErbB Receptors

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Adenocarcinoma of Lung

dc.title

DOK2 inhibits EGFR-mutated lung adenocarcinoma.

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Journal article

duke.contributor.orcid

Chen, Ming|0000-0002-3470-1062

pubs.begin-page

e79526

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11

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School of Medicine

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Duke

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Duke Cancer Institute

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Institutes and Centers

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Pathology

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Clinical Science Departments

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Published

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8

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