ArticlePloS one2013
Nontypeable Haemophilus Influenzae Infection Upregulates the NLRP3 Inflammasome and Leads to Caspase-1-Dependent Secretion of Interleukin-1β - A Possible Pathway of Exacerbations in COPD.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.
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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
48 citing papers in PubMed, 60 citations in OpenAlex.
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- Adrenergic receptors: a key determinant of outcomes in bacterial pneumonia and bacterial sepsis-associated acute lung injury/acute respiratory distress syndrome through participation in pulmonary innate immune response.Frontiers in immunology · 2026Review
- Inflammatory Responses to Non-TypeablePathogens (Basel, Switzerland) · 2025Article
- Bronchial epithelial cell-derived extracellular vesicles drive inflammasome activation andFrontiers in immunology · 2025Article
- Potential role of the antimicrobial peptide Tachyplesin III in regulating nontypeable Haemophilus influenzae-induced inflammation in airway epithelial cells.Archives of microbiology · 2024Article
- Three Main SCFAs Mitigate Lung Inflammation and Tissue Remodeling Nlrp3-Dependent in Murine HDM-Induced Neutrophilic Asthma.Inflammation · 2024Article
- Andrographolide Attenuates NLRP3 Inflammasome Activation and Airway Inflammation in Exacerbation of Chronic Obstructive Pulmonary Disease.Drug design, development and therapy · 2024Article
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- Role of toll-like receptors and nod-like receptors in acute lung infection.Frontiers in immunology · 2023Review
- Monoclonal antibodies that target extracellular DNABII proteins or the type IV pilus of nontypeableBiofilm · 2022Article
- Non-typeableEuropean respiratory review : an official journal of the European Respiratory Society · 2022Review
- Pyroptosis-Induced Inflammation and Tissue Damage.Journal of molecular biology · 2022Review
- Yifei Sanjie Formula Treats Chronic Obstructive Pulmonary Disease by Remodeling Pulmonary Microbiota.Frontiers in medicine · 2022Article
- Lipopolysaccharide Administration Alters Extracellular Vesicles in Cell Lines and Mice.Current microbiology · 2021Article
- Innate Receptor Activation Patterns Involving TLR and NLR Synergisms in COVID-19, ALI/ARDS and Sepsis Cytokine Storms: A Review and Model Making Novel Predictions and Therapeutic Suggestions.International journal of molecular sciences · 2021Review
- Roles of Inflammasome in Cigarette Smoke-Related Diseases and Physiopathological Disorders: Mechanisms and Therapeutic Opportunities.Frontiers in immunology · 2021Review
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
rationaleNontypeable Haemophilus influenzae (NTHi) is the most common cause for bacterial exacerbations in chronic obstructive pulmonary disease (COPD). Recent investigations suggest the participation of the inflammasome in the pathomechanism of airway inflammation. The inflammasome is a cytosolic protein complex important for early inflammatory responses, by processing Interleukin-1β (IL-1β) to its active form.
objectivesSince inflammasome activation has been described for a variety of inflammatory diseases, we investigated whether this pathway plays a role in NTHi infection of the airways.
methodsA murine macrophage cell line (RAW 264.7), human alveolar macrophages and human lung tissue (HLT) were stimulated with viable or non-viable NTHi and/or nigericin, a potassium ionophore. Secreted cytokines were measured with ELISA and participating proteins detected via Western Blot or immunohistochemistry. MEASUREMENTS AND MAIN
resultsWestern Blot analysis of cells and immunohistochemistry of lung tissue detected the inflammasome key components NLRP3 and caspase-1 after stimulation, leading to a significant induction of IL-1β expression (RAW: control at the lower detection limit vs. NTHi 505±111pg/ml, p<0.01). Inhibition of caspase-1 in human lung tissue led to a significant reduction of IL-1β and IL-18 levels (IL-1β: NTHi 24 h 17423±3198pg/ml vs. NTHi+Z-YVAD-FMK 6961±1751pg/ml, p<0.01).
conclusionOur data demonstrate the upregulation of the NRLP3-inflammasome during NTHi-induced inflammation in respiratory cells and tissues. Our findings concerning caspase-1 dependent IL-1β release suggest a role for the inflammasome in respiratory tract infections with NTHi which may be relevant for the pathogenesis of bacterial exacerbations in COPD.
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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.