ArticleJournal of immunology (Baltimore, Md. : 1950)2010
Inflammation and fibrosis during Chlamydia pneumoniae infection is regulated by IL-1 and the NLRP3/ASC inflammasome.
Article in Journal of immunology (Baltimore, Md. : 1950), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
93 citing papers in PubMed, 154 citations in OpenAlex.
- Obligate intracellular bacteria and host cell death pathways-the matter of life and death.Cell and tissue research · 2025Review
- Proinflammatory Cytokines in Women with PCOS in Atypical Pathogen Infections.Diagnostics (Basel, Switzerland) · 2025Article
- Aerosol Inhalation of Luteolin-7-O-Glucuronide Exerts Anti-Inflammatory Effects by Inhibiting NLRP3 Inflammasome Activation.Pharmaceuticals (Basel, Switzerland) · 2024Article
- The interaction of inflammasomes and gut microbiota: novel therapeutic insights.Cell communication and signaling : CCS · 2024Review
- Restriction and evasion: a review of IFNγ-mediated cell-autonomous defense pathways during genital Chlamydia infection.Pathogens and disease · 2024Review
- The Mechanism of Pyroptosis and Its Application Prospect in Diabetic Wound Healing.Journal of inflammation research · 2024Review
- Review
- Persistence of obligate intracellular pathogens: alternative strategies to overcome host-specific stresses.Frontiers in cellular and infection microbiology · 2023Review
- Pyroptosis-Induced Inflammation and Tissue Damage.Journal of molecular biology · 2022Review
- The role of inflammasomes in cutaneous pathology.Postepy dermatologii i alergologii · 2022Review
- Fallopian tubal infertility: the result of Chlamydia trachomatis-induced fallopian tubal fibrosis.Molecular and cellular biochemistry · 2022Review
- Activation and Regulation of NLRP3 by Sterile and Infectious Insults.Frontiers in immunology · 2022Review
- Protein-Bound Uremic Toxins Induce Reactive Oxygen Species-Dependent and Inflammasome-Mediated IL-1β Production in Kidney Proximal Tubule Cells.Biomedicines · 2021Article
- SARS-CoV-2 may trigger inflammasome and pyroptosis in the central nervous system: a mechanistic view of neurotropism.Inflammopharmacology · 2021Review
- 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
- Host cell death during infection with Chlamydia: a double-edged sword.FEMS microbiology reviews · 2021Review
- Inflammasomes and Fibrosis.Frontiers in immunology · 2021Review
- Insights Into Host Cell Cytokines inFrontiers in immunology · 2021Review
- Crosstalk between ER stress, NLRP3 inflammasome, and inflammation.Applied microbiology and biotechnology · 2020Review
- Total saponin of Dioscorea collettii attenuates MSU crystal‑induced inflammation via inhibiting the activation of the NALP3 inflammasome and caspase‑1 in THP‑1 macrophages.Molecular medicine reports · 2020Article
33 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
6 authors at 2 institutions in 1 country.
Funding
Abstract
Chlamydia pneumoniae is a common respiratory pathogen associated with atypical pneumonia, and it has been suggested as a trigger or promoter of several chronic inflammatory conditions, such as asthma and atherosclerosis. The beta form of IL-1 (IL-1beta) is a proinflammatory cytokine released by many cell types and is an important mediator of inflammation during infection. IL-1beta production is a tightly controlled process that includes regulation at multiple levels and typically requires two distinct signals for activation and release. In this study, we investigated the ability of C. pneumoniae to induce IL-1beta secretion. We found that C. pneumoniae was unique among the other Chlamydia species tested in its ability to potently induce secretion of mature IL-1beta from unprimed bone marrow-derived macrophages during a productive infection. TLR2 was required for induction of pro-IL-1beta, whereas the NLRP3/ASC was required for caspase-1 activation and pro-IL-1beta cleavage to produce mature IL-1beta. Caspase-1 cleavage was independent of endogenous ATP release, but required potassium flux, lysosomal acidification, and cathepsin B release. We further investigated the role of IL-1 in host defense against C. pneumoniae-induced pneumonia using mice deficient in the type I IL-1R. Although the IL-1R(-/-) mice developed an inflammatory infiltrate, the number of infiltrating neutrophils was lower, whereas there was evidence of increased infiltrating fibroblasts and mesenchymal cells and more lung fibrosis. We conclude that C. pneumoniae directly activates the NLRP3/ASC inflammasome, leading to the release of biologically active IL-1beta, and that concurrent IL-1 signaling is required for optimal host defense against acute bacterial pneumonia.
Indexed as
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.