ArticleJournal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban2006
Inhibition of RAW264.7 macrophage inflammatory cytokines release by small hairpin RNAi targeting TLR4.
Article in Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 6 citations in OpenAlex.
- Understanding immune-modulatory efficacy in vitro.Chemico-biological interactions · 2022Review
- Does Infection-Induced Immune Activation Contribute to Dementia?Aging and disease · 2015Review
- Dihydroaustrasulfone Alcohol (WA-25) Impedes Macrophage Foam Cell Formation by Regulating the Transforming Growth Factor-β1 Pathway.International journal of molecular sciences · 2015Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In order to construct an expression vector carrying small hairpin (sh) RNA (shRNA) for toll-like receptor 4 mRNA and a reporter gene of enhanced green fluorescence protein (EGFP) and study the inhibition of cytokine release by RAW264.7 cell induced by lipopolysaccharide (LPS) stimulation through transfection and expression of shRNA targeting TLR4 gene via the RNAi mechanism, the reporter gene plasmid pEGFP-C1 (4.7 kb) and psiRNA-hHlneo (2979 bp) were used. The H1 promotor and double Bbs I restrict endoenzyme site were cloned from plasmid psiRNA-hH1neo and reconstructed them into plasmid pEGFP-C1 in the Mlu I restrict endoenzymic site, forming plasmid pEGFP-H1/siRNA, which contained Bbs site and reporter EGFP gene. Then an oligonuclear hairpin sequence targeting TLR4 gene was designed by internet tool and inserted into the plasmid pEGFP-H1/siRNA forming plasmid pEGFP-H1/TLR4-siRNA. After transfection of pEGFP-H1/TLR4-siRNA into RAW264.7 cells, tumor necrosis factor-alpha (TNF-alpha) release by the cells after stimulation by LPS was detected. The results showed that the constructed pEGFP-H1/TLR4-siRNA carrying hairpin RNA for TLR4 gene and reporter EGFP gene were proven to be right by restriction endonuclease analysis. The expression of EGFP gene was (50.37+/-8.23) % and after transfection of the plasmid pEGFP-H1/ TLR4-siRNA the level of TNF-alpha released by RAW264.7 cell was down regulated. It was concluded that shRNA targeting TLR4 gene could inhibit the TNF-alpha release by RAW264.7 cells evoked by LPS.
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Registered trials
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