ArticleAntioxidants & redox signaling2015
Pseudomonas aeruginosa pyocyanin induces neutrophil death via mitochondrial reactive oxygen species and mitochondrial acid sphingomyelinase.
Article in Antioxidants & redox signaling, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 1 of them a synthesis that pooled it.
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Who cites it
89 citing papers in PubMed, 1 synthesis or guideline pooled it, 143 citations in OpenAlex.
- Molecular exploration of host-pathogen interactions in severeFrontiers in medicine · 2025Pooled it
- Phosphatidylserine externalization and procoagulant activation of erythrocytes induced by Pseudomonas aeruginosa virulence factor pyocyanin.Journal of cellular and molecular medicine · 2016Trial
- Inhaled sphingosine reduces bronchial Pseudomonas aeruginosa burden during porcine ex vivo lung perfusion and shows tissue delivery in explanted human lungs.Scientific reports · 2026Article
- Effective macrophage clearance ofbioRxiv : the preprint server for biology · 2026Article
- Natural Product Target Identification of Wheldone, a Fungal Metabolite, as a KIF11 Inhibitor in Ovarian Cancer Using the DiffPOP (Differential Protein Precipitation) Method.Molecular & cellular proteomics : MCP · 2026Article
- Multiple virulence attenuating strategies against Pseudomonas aeruginosa: Natural, synthetic, and synergistic approaches.World journal of microbiology & biotechnology · 2026Review
- Immune evasion of multidrug-resistant bacteria: insights from lung innate immune cells and targeted therapies.Frontiers in cellular and infection microbiology · 2026Review
- Microbial phenazines: biosynthesis, structural diversity, evolution, regulation, and biological significance.Microbiology and molecular biology reviews : MMBR · 2025Review
- Anti-pyocyanin Antibody Exhibits Cytotoxicity Protective Effects on Macrophages: A Promising Innovative Therapeutic Approach forACS pharmacology & translational science · 2025Article
- Carbon source-driven downregulation of the sRNA AmiL enhancesVirulence · 2025Article
- Advances inMicroorganisms · 2025Review
- Ceramide signaling in immunity: a molecular perspective.Lipids in health and disease · 2025Review
- Design, synthesis, biological evaluation and in silico study of N-(Pyrimidin-2-yl)alkyl/arylamide derivatives as quorum sensing inhibitors against Pseudomonas aeruginosa.Molecular diversity · 2025Article
- An antibiotic-responsive regulator orchestrates chronic-to-acute virulence switch in Pseudomonas aeruginosa.Nucleic acids research · 2025Article
- Colourful Protection: Challenges and Perspectives of Antibacterial Pigments Extracted from Bacteria for Textile Applications.Antibiotics (Basel, Switzerland) · 2025Review
- Tiny but Mighty: Small RNAs-The Micromanagers of Bacterial Survival, Virulence, and Host-Pathogen Interactions.Non-coding RNA · 2025Review
- Identification of the Pseudomonas aeruginosa AgtR-CspC-RsaL pathway that controls Las quorum sensing in response to metabolic perturbation and Staphylococcus aureus.PLoS pathogens · 2025Article
- Review
- Modulation of pulmonary immune functions by theFrontiers in immunology · 2025Review
- Article
29 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
10 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimsPulmonary infections with Pseudomonas aeruginosa are a serious clinical problem and are often lethal. Because many strains of P. aeruginosa are resistant to antibiotics, therapeutic options are limited. Neutrophils play an important role in the host's early acute defense against pulmonary P. aeruginosa. Therefore, it is important to define the mechanisms by which P. aeruginosa interacts with host cells, particularly neutrophils.
resultsHere, we report that pyocyanin, a membrane-permeable pigment and toxin released by P. aeruginosa, induces the death of wild-type neutrophils; its interaction with the mitochondrial respiratory chain results in the release of reactive oxygen species (ROS), the activation of mitochondrial acid sphingomyelinase, the formation of mitochondrial ceramide, and the release of cytochrome c from mitochondria. A genetic deficiency in acid sphingomyelinase prevents both the activation of this pathway and pyocyanin-induced neutrophil death. This reduced death, on the other hand, is associated with an increase in the release of interleukin-8 from pyocyanin-activated acid sphingomyelinase-deficient neutrophils but not from wild-type cells. INNOVATION: These studies identified the mechanisms by which pyocyanin induces the release of mitochondrial ROS and by which ROS induce neutrophil death via mitochondrial acid sphingomyelinase.
conclusionThese findings demonstrate a novel mechanism of pyocyanin-induced death of neutrophils and show how this apoptosis balances innate immune reactions.
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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 Socratic graph.