IL-6 induces NLRP3 inflammasome activation through JAK/STAT3-dependent NOX2 induction in colon epithelial cells
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, J-A | - |
dc.contributor.author | Grung, Premesh | - |
dc.contributor.author | Banskota, Suhrid | - |
dc.contributor.author | Jeong, Byeong-Seon | - |
dc.contributor.author | Nam, Tae-gyu | - |
dc.date.accessioned | 2021-06-22T14:25:31Z | - |
dc.date.available | 2021-06-22T14:25:31Z | - |
dc.date.created | 2021-01-21 | - |
dc.date.issued | 2017-02 | - |
dc.identifier.issn | 1873-9946 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/10188 | - |
dc.description.abstract | Background: IL-6, in addition to TNFα, plays an important role in the pathogenesis of inflammatory bowel disease (IBD), which is supported by clinical observations of close correlation between IL-6 production and severity of the disease in IBD patients. IL-6 plays a role in the recruitment process of neutrophils and monocytes to lesion sites, resulting in aggravated and chronic inflammation. Recently, TNFα is shown to prime TLR-independent NLRP3 inflammasome activation. IL-6, however, has not been shown such activity. The present study aims to investigate whether IL-6 induces NLRP3 inflammasome formation, and NADPH oxidase is involved in that process. Methods: The IL-6-induced adhesion of monocytes (U937 cell line) to colon epithelial cells (HT-29 cell line) was examined by co-culture of HT-29 cells with U937 cells that were already labeled with BCECF-AM (10 μg/mL). After 3 h treatment with IL-6, BCECF fluorescence from adhered cells was measured. To identify signaling pathway, siRNA transfection, RT-PCR and Western blot analyses were performed. Reactive oxygen species (ROS) was measured by lucigenin chemiluminescence assay. Results: IL-6 significantly increased U937 monocytic cell adhesion to HT-29 colonic epithelial cells, which was accompanied by upregulation of adhesion molecules (ICAM-1 and VCAM-1), NLRP3, caspase-1, and IL-1β. Concurrently, IL-6 significantly increased ROS production in a time-dependent manner, which matched significant induction of NOX2 and its regulatory subunits. The IL-6-induced ROS production and increased expression of NLRP3, caspase-1, and IL-1β were attenuated by pretreatment with NADPH oxidase inhibitors (VAS-2840, DPI and apocyanin), but not by inhibitors against other enzymes, such as cytosolic COX-2 (celecoxib), mitochondria (antimycin A), xanthine oxidase (allopurinol), and iNOS (NAME) in HT-29 cells. Similarly, inhibitors of JAK (tofacitinib) and STAT3 (stattic) suppressed IL-6-induced ROS production, NOX2 induction, and the changes in inflammasome proteins in HT-29 cells. Conclusions: Taken together, our results suggest that IL-6 induces NLRP3 inflammasome activation through JAK/STAT-dependent NOX2 induction in HT-29 colonic epithelial cells. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | OXFORD UNIV PRESS | - |
dc.title | IL-6 induces NLRP3 inflammasome activation through JAK/STAT3-dependent NOX2 induction in colon epithelial cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Nam, Tae-gyu | - |
dc.identifier.doi | 10.1093/ecco-jcc/jjx002.183 | - |
dc.identifier.wosid | 000398606900185 | - |
dc.identifier.bibliographicCitation | JOURNAL OF CROHNS & COLITIS, v.11, no.suppl_1, pp.S106 - S107 | - |
dc.relation.isPartOf | JOURNAL OF CROHNS & COLITIS | - |
dc.citation.title | JOURNAL OF CROHNS & COLITIS | - |
dc.citation.volume | 11 | - |
dc.citation.number | suppl_1 | - |
dc.citation.startPage | S106 | - |
dc.citation.endPage | S107 | - |
dc.type.rims | ART | - |
dc.type.docType | Meeting Abstract | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Gastroenterology & Hepatology | - |
dc.relation.journalWebOfScienceCategory | Gastroenterology & Hepatology | - |
dc.identifier.url | https://academic.oup.com/ecco-jcc/article/11/suppl_1/S106/2961001 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
55 Hanyangdeahak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Korea+82-31-400-4269 sweetbrain@hanyang.ac.kr
COPYRIGHT © 2021 HANYANG UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.