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Lee, SangJoon
Viral Immunology Lab.
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dc.citation.endPage 5402 -
dc.citation.number 40 -
dc.citation.startPage 5387 -
dc.citation.title ONCOGENE -
dc.citation.volume 37 - Kim, Yunjung - Shiba-Ishii, Aya - Nakagawa, Tomoki - Iemura, Shun-Ichiro - Natsume, Tohru - Nakano, Noriyuki - Matsuoka, Ryota - Sakashita, Shingo - Lee, SangJoon - Kawaguchi, Atsushi - Sato, Yukio - Noguchi, Masayuki - 2023-12-21T20:08:01Z - 2023-12-21T20:08:01Z - 2022-03-08 - 2018-10 -
dc.description.abstract Previously we have reported that stratifin (SFN, 14-3-3 sigma) acts as a novel oncogene, accelerating the tumor initiation and progression of lung adenocarcinoma. Here, pull-down assay and LC-MS/MS analysis revealed that ubiquitin-specific protease 8 (USP8) specifically bound to SFN in lung adenocarcinoma cells. Both USP8 and SFN showed higher expression in human lung adenocarcinoma than in normal lung tissue, and USP8 expression was significantly correlated with SFN expression. Expression of SFN, but not of USP8, was associated with histological subtype, pathological stage, and poor prognosis. USP8 stabilizes receptor tyrosine kinases (RTKs) such as EGFR and MET by deubiquitination, contributing to the proliferative activity of many human cancers including non-small cell lung cancer. In vitro, USP8 binds to SFN and they co-localize at the early endosomes in lung adenocarcinoma cells. Moreover, USP8 or SFN knockdown leads to downregulation of tumor cellular proliferation and upregulation of apoptosis, p-EGFR or p-MET, which are related to the degradation pathway, and accumulation of ubiquitinated RTKs, leading to lysosomal degradation. Additionally, mutant USP8, which is unable to bind to SFN, reduces the expression of RTKs and p-STAT3. We also found that interaction with SFN is critical for USP8 to exert its auto-deubiquitination function and avoid dephosphorylation by PP1. Our findings demonstrate that SFN enhances RTK stabilization through abnormal USP8 regulation in lung adenocarcinoma, suggesting that SFN could be a more suitable therapeutic target for lung adenocarcinoma than USP8. -
dc.identifier.bibliographicCitation ONCOGENE, v.37, no.40, pp.5387 - 5402 -
dc.identifier.doi 10.1038/s41388-018-0342-9 -
dc.identifier.issn 0950-9232 -
dc.identifier.scopusid 2-s2.0-85048111701 -
dc.identifier.uri -
dc.identifier.wosid 000446312900002 -
dc.language 영어 -
dc.title Stratifin regulates stabilization of receptor tyrosine kinases via interaction with ubiquitin-specific protease 8 in lung adenocarcinoma -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Biochemistry & Molecular Biology; Oncology; Cell Biology; Genetics & Heredity -
dc.relation.journalResearchArea Biochemistry & Molecular Biology; Oncology; Cell Biology; Genetics & Heredity -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordPlus STRUCTURAL BASIS -
dc.subject.keywordPlus UBPY -
dc.subject.keywordPlus CANCER -
dc.subject.keywordPlus USP8 -
dc.subject.keywordPlus 14-3-3-SIGMA -
dc.subject.keywordPlus STABILITY -
dc.subject.keywordPlus ENZYME -
dc.subject.keywordPlus DEUBIQUITINATION -
dc.subject.keywordPlus CLASSIFICATION -
dc.subject.keywordPlus TRAFFICKING -


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