Abstract:
:Previous studies have demonstrated that insulin-like growth factor-I (IGF-1) and reactive oxygen species (ROS) are involved in the development and progression of various cancers. However, their regulatory mechanism remains unknown. In this study, we treated cancer cells (HeLa, HepG2 and SW1116 cells) and normal cells (NCM-460) with IGF-1 at different concentrations and for different times and found that cancer cells produced large amounts of cytoplasmic ROS in cancer cells but not in normal cells. Further mechanistic analysis demonstrated that IGF-1 activated NFκB and NLRP3 inflammatory signalling in HeLa cells; systematic analysis indicated that IGF-1 activates NFκB and NLRP3, and the activation was cytosolic ROS- and NADPH oxidase 2 (NOX2)-dependent. Additionally, through coimmunoprecipitation experiments, we found that the IRS-1/COX2/mPGES-1/MAPKs/RAC2/NOX2 pathway nexus was involved in IGF-1-induced NFκB and NLRP3 production. Finally, we validated the regulatory mechanisms through IRS-1, mPGES-1 or NOX2 inhibition using their respective selective inhibitors or shRNA knockdown. Taken together, this is the first report on the mechanism by which IGF-1 activates NFκB and NLRP3 inflammatory signalling via ROS. These findings pave the way for an in-depth study of the role of IGF-1 and ROS in inflammation associated with the development and progression of cancer.
journal_name
Mol Cell Probesjournal_title
Molecular and cellular probesauthors
Wang C,An Y,Wang Y,Shen K,Wang X,Luan W,Ma F,Ni L,Liu M,Yu Ldoi
10.1016/j.mcp.2020.101583subject
Has Abstractpub_date
2020-08-01 00:00:00pages
101583eissn
0890-8508issn
1096-1194pii
S0890-8508(20)30140-7journal_volume
52pub_type
杂志文章abstract::In order to determine whether polymerase chain reaction (PCR) could be used to detect Campylobacter jejuni directly in stool samples, DNA from 66 frozen culture positive and negative fecal samples was purified by column chromatography. The flaA gene was amplified using primers directed against the conserved 5' and 3' ...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1996.0011
更新日期:1996-04-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2008.10.001
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更新日期:2017-10-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1999.0250
更新日期:1999-08-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1994.1061
更新日期:1994-10-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1994.1035
更新日期:1994-06-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1994.1010
更新日期:1994-02-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2004.07.006
更新日期:2005-02-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2016.02.009
更新日期:2016-06-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2017.02.002
更新日期:2017-06-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/0890-8508(89)90015-7
更新日期:1989-12-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2019.04.001
更新日期:2019-06-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1993.1027
更新日期:1993-06-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2004.03.003
更新日期:2004-08-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/0890-8508(89)90004-2
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1993.1004
更新日期:1993-02-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1998.0180
更新日期:1998-08-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/0890-8508(88)90009-6
更新日期:1988-12-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章,评审
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更新日期:2021-01-08 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/0890-8508(89)90037-6
更新日期:1989-03-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/0890-8508(92)90055-3
更新日期:1992-04-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.2001.0351
更新日期:2001-04-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1993.1073
更新日期:1993-12-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2007.06.010
更新日期:2008-02-01 00:00:00
abstract::Recombinase polymerase amplification assays using real-time fluorescent detection (real-time RPA assay) and lateral flow dipstick (RPA LFD assay) were developed targeting the gD gene of pseudorabies virus (PRV). Both assays were performed at 39 °C within 20 min. The sensitivity of the real-time RPA assay and the RPA L...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2017.03.005
更新日期:2017-06-01 00:00:00