Cyanobacteria, cyanotoxins and lipopolysaccharides in aerosols from inland freshwater bodies and their effects on human bronchial cells
Language English Country Netherlands Media print-electronic
Document type Journal Article
PubMed
36738853
DOI
10.1016/j.etap.2023.104073
PII: S1382-6689(23)00014-5
Knihovny.cz E-resources
- Keywords
- Aerosol, Cyanobacteria, Cyanotoxins, Inflammation, Inhalation toxicity, Lipopolysaccharides,
- MeSH
- Aerosols MeSH
- Chromatography, Liquid MeSH
- Humans MeSH
- Lipopolysaccharides analysis MeSH
- Microcystins toxicity MeSH
- Cyanobacteria * metabolism MeSH
- Fresh Water analysis MeSH
- Tandem Mass Spectrometry MeSH
- Cyanobacteria Toxins * MeSH
- Water MeSH
- Check Tag
- Humans MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Aerosols MeSH
- Lipopolysaccharides MeSH
- Microcystins MeSH
- Cyanobacteria Toxins * MeSH
- Water MeSH
Components of cyanobacterial water blooms were quantified in aerosols above agitated water surfaces of five freshwater bodies. The thoracic and respirable aerosol fraction (0.1-10 µm) was sampled using a high-volume sampler. Cyanotoxins microcystins were detected by LC-MS/MS at levels 0.3-13.5 ng/mL (water) and < 35-415 fg/m3 (aerosol). Lipopolysaccharides (endotoxins) were quantified by Pyrogene rFC assay at levels < 10-119 EU/mL (water) and 0.13-0.64 EU/m3 (aerosol). Cyanobacterial DNA was detected by qPCR at concentrations corresponding to 104-105 cells eq./mL (water) and 101-103 cells eq./m3 (aerosol). Lipopolysaccharides isolated from bloom samples induced IL-6 and IL-8 cytokine release in human bronchial epithelial cells Beas-2B, while extracted cyanobacterial metabolites induced both pro-inflammatory and cytotoxic effects. Bloom components detected in aerosols and their bioactivities observed in upper respiratory airway epithelial cells together indicate that aerosols formed during cyanobacterial water blooms could induce respiratory irritation and inflammatory injuries, and thus present an inhalation health risk.
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