ArticleCellular & molecular biology letters2023
Exosomal miR-155-5p drives widespread macrophage M1 polarization in hypervirulent Klebsiella pneumoniae-induced acute lung injury via the MSK1/p38-MAPK axis.
Article in Cellular & molecular biology letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 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
57 citing papers in PubMed, 74 citations in OpenAlex.
- RpoE-mediated virulence attenuation elicits protective immunity in hypervirulentEmerging microbes & infections · 2026Article
- Exosomal delivery of METTL3 promotes M1 macrophage polarization by inducing miR-155-5p maturation via m6A modification.Annals of medicine · 2026Article
- Inflammasome Dynamics in the High-Risk Clone ST235 with Altered Pyoverdine Structures.International journal of molecular sciences · 2026Article
- Targeting the non-coding RNA-PANoptosis axis: a novel frontier in disease diagnosis and therapy.Apoptosis : an international journal on programmed cell death · 2026Review
- Review
- AntagomiR-155 hitchhiking on biomimetic yeast microcapsules alleviate atherosclerosis by inhibiting M1-like macrophages.Materials today. Bio · 2026Article
- Exosomal lncRNA OTUD6B-AS1 as a pathogenic nanocarrier promotes inflammatory macrophage polarization in endometritis via a targetable ceRNA circuit.Materials today. Bio · 2026Article
- Spinal cord injury-derived exosomes exacerbate damage: miR-155-5p mediates inflammatory responses.Neural regeneration research · 2026Article
- Article
- Excessive pyroptosis mediates the exacerbation of pneumonia caused by low-lethality influenza virus and secondary MRSA co-infection.Cell death discovery · 2026Article
- Epigenetic H3K4me3 activation of miR-155-5p promotes intervertebral disc degeneration via autophagy and ageing in nucleus pulposus cells.Non-coding RNA research · 2026Article
- miRNA-146b TargetsAnimals : an open access journal from MDPI · 2026Article
- MicroRNAs as Orchestrators of Immune Responses to Bacterial Infection.Microorganisms · 2026Review
- Inhalation of mesenchymal stromal cell-derived extracellular vesicles activates macrophage polarization through the miR-22-3p/NLRP3/IL-1β pathway, ameliorating lung ischemia - reperfusion injury.Stem cell research & therapy · 2026Article
- Impaired BCAA Catabolism Contributes To Acute Lung Injury By Triggering Oxidative Stress and Inflammatory Response Via the MAPK Pathway.Inflammation · 2026Article
- Advances in understanding exosome-mediated regulation of macrophage function.Frontiers in immunology · 2026Review
- Extracellular vesicle-mediated cell-cell communication in keloids and hypertrophic scars: mechanisms, methodological caveats, and therapeutic perspectives.Frontiers in cell and developmental biology · 2026Review
- Targeting Macrophage-Mediated Mechanisms in Sepsis-Induced Cardiomyopathy: From Pathophysiology to Therapeutic Strategies.Journal of inflammation research · 2026Review
- Lipoxin A4 AttenuatesJournal of inflammation research · 2026Article
- Exosomes in inflammatory tissue injury: key pathogenic factors and promising therapeutic agents.Frontiers in immunology · 2026Review
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHypervirulent Klebsiella pneumoniae (hvKp) infection-induced sepsis-associated acute lung injury (ALI) has emerged as a significant clinical challenge. Increasing evidence suggests that activated inflammatory macrophages contribute to tissue damage in sepsis. However, the underlying causes of widespread macrophage activation remain unclear.
methodsBALB/c mice were intravenously injected with inactivated hvKp (iHvKp) to observe lung tissue damage, inflammation, and M1 macrophage polarization. In vitro, activated RAW264.7 macrophage-derived exosomes (iHvKp-exo) were isolated and their role in ALI formation was investigated. RT-PCR was conducted to identify changes in exosomal miRNA. Bioinformatics analysis and dual-luciferase reporter assays were performed to validate MSK1 as a direct target of miR-155-5p. Further in vivo and in vitro experiments were conducted to explore the specific mechanisms involved.
resultsiHvKp successfully induced ALI in vivo and upregulated the expression of miR-155-5p. In vivo, injection of iHvKp-exo induced inflammatory tissue damage and macrophage M1 polarization. In vitro, iHvKp-exo was found to promote macrophage inflammatory response and M1 polarization through the activation of the p38-MAPK pathway. RT-PCR revealed exposure time-dependent increased levels of miR-155-5p in iHvKp-exo. Dual-luciferase reporter assays confirmed the functional role of miR-155-5p in mediating iHvKp-exo effects by targeting MSK1. Additionally, inhibition of miR-155-5p reduced M1 polarization of lung macrophages in vivo, resulting in decreased lung injury and inflammation induced by iHvKp-exo or iHvKp.
conclusionsThe aforementioned results indicate that exosomal miR-155-5p drives widespread macrophage inflammation and M1 polarization in hvKp-induced ALI through the MSK1/p38-MAPK Axis.
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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 Socratic graph.