ArticleJournal of inflammation (London, England)2012
LPS induced inflammatory responses in human peripheral blood mononuclear cells is mediated through NOX4 and Giα dependent PI-3kinase signalling.
Article in Journal of inflammation (London, England), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 110 papers, 2 of them syntheses that pooled it.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
110 citing papers in PubMed, 2 syntheses or guidelines pooled it, 254 citations in OpenAlex.
- Effect of Intensity and Duration of Exercise on Gut Microbiota in Humans: A Systematic Review.International journal of environmental research and public health · 2022Pooled it
- Gut Microbiota Dysbiosis in Human Hypertension: A Systematic Review of Observational Studies.Frontiers in cardiovascular medicine · 2021Pooled it
- Trial
- A Defined Synbiotic Produces Immunomodulatory Metabolites, Engages Gut-Immune Pathways Relevant to Inflammaging, and Supports Healthy Aging in a Nematode Model.International journal of molecular sciences · 2026Article
- Dietary capsaicin supplementation attenuates jejunal injury of piglets challenged with lipopolysaccharide.BMC veterinary research · 2026Article
- From Home to Transcriptome: Comparing the Transcriptomic Profile of Induced Immune Response via Lipopolysaccharide Stimulation in homeRNA and Venous Blood.Analytical chemistry · 2026Article
- PAC1 receptor agonist maxadilan alleviates corneal inflammation in a murine model of LPS-induced ocular inflammation.PloS one · 2026Article
- Immune-Related Protein and Non-Coding RNA Cargo of Extracellular Vesicles Participate in the Chronic Inflammation Induced by HIV Infection.Journal of extracellular biology · 2025Article
- A synbiotic medical food improves gut barrier function, reduces immune responses, and inhibits osteoclast activity in models of postmenopausal bone loss aligned with clinical outcomes.Journal of functional foods · 2025Article
- Polyunsaturated Fatty Acid (PUFA) Composition of Growth Medium Changes the Atherogenic Potential of Human Aortic Endothelial Cells (HAECs) Following Endotoxin Stimulation.Biomedicines · 2025Article
- Erythrocyte membrane coated biodegradable nanoparticles detoxify LPS-induced toxicity by producing non-mutagenic metabolites and downregulating pro-inflammatory cytokines and oxidative stress markers.Scientific reports · 2025Article
- From Home to Transcriptome: Comparing the transcriptomic profile of induced immune response via lipopolysaccharide stimulation in homeRNA and venous blood.bioRxiv : the preprint server for biology · 2025Article
- Evaluation of the Dual Antiviral and Immunomodulatory Effects ofVeterinary sciences · 2025Article
- Understanding the role of iron/heme metabolism in the anti‑inflammatory effects of natural sulfur molecules against lipopolysaccharide‑induced inflammation.Molecular medicine reports · 2025Article
- Impaired Responses to In Vitro Lipopolysaccharide-Induced Stimulation After Long-Term, Rotating Shift Work.International journal of environmental research and public health · 2025Article
- Systemic inflammatory responses to repeated and increasing endotoxin challenges in fetal sheep.Physiological reports · 2025Article
- Functional characterization of eQTLs and asthma risk loci with scATAC-seq across immune cell types and contexts.American journal of human genetics · 2025Article
- A Review of Telomere Attrition in Cancer and Aging: Current Molecular Insights and Future Therapeutic Approaches.Cancers · 2025Review
- Immunomodulatory Effects of the Tobacco Defensin NaD1.Antibiotics (Basel, Switzerland) · 2024Article
- Article
50 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
Abstract
COPD is a disease of innate immunity and bacterial infections are a dominant cause of exacerbations in the later stages resulting in poor health and high mortality. The pathogen-associated molecular pattern (PAMP) lipopolysaccharide (LPS) is sensed by immune cells through activation of the toll-like receptor 4 (TLR4). This leads to the activation of NADPH oxidase (NOX) and NF-κB which together drive COPD inflammation. In this study we show in human PBMCs that LPS stimulated proinflammatory cytokine release (CXCL8 and IL6) was inhibited by approximately 50% by the broad specificity phosphatidylinositol 3-kinase (PI3K) inhibitor, wortmannin. Our results also demonstrate that activation of PI3K following LPS stimulation is mediated by a NOX4 dependent mechanism releasing endogenous H2O2, as the NOX4 inhibitor apocynin blocked LPS induced AKT phosphorylation. Moreover, LPS-induced PI3K activation was inhibited by the anti-oxidant N-acetylcysteine in a concentration dependent manner (IC50 ~100 μM). In addition, our data demonstrated that inhibition of small G proteins, by pre-treatment with pertussis toxin, inhibited LPS-induced AKT phosphorylation. Furthermore, the G-protein inhibitors pertussis toxin and mastoparan both inhibited LPS-induced CXCL8 and IL-6 release by approximately 50%. Together, these data indicate there is a mechanism in human PBMCs where TLR4 activation by LPS leads to ROS generation through NOX4 and activation of the PI3K pathway. This effect is apparently mediated through small G proteins facilitating the release of pro-inflammatory cytokines.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.