In vitro impact preliminary assessment of airborne particulate from metalworking and woodworking industries

Ilona Pavlovska (Coresponding Author), Anna Ramata-Stunda, Žanna Martinsone, Martins Boroduskis, Liene Patetko, Inese Martinsone, Anita Seile, Ivars Vanadzins

Research output: Other contribution


Inhalation is the main route of exposure to airborne pollutants. To evaluate the safety and assess the risks of occupational hazards different testing approaches are used. 3D airway epithelial tissues allow to mimic exposure conditions in vitro, generates human-relevant toxicology data,
allows to elucidate mode of action of pollutants. Gilian 3500 pumps equipped with Standard Midget Impingers were used to collect the airborne particulate from woodworking and metalworking environments. EpiAirway™ tissues were used to model half working day (4 h), full working day (8 h), and 3 working day exposures to occupational pollutants. Tissue viability was
assessed using MTT assay. RT-qPCR analyses performed to analyze the expression of gelsolin, caspase-3, and IL-6. Tissue morphology was assessed by hematoxylin/eosin staining. Acute exposure to workspace pollutants slightly affected tissue viability and did not change the
morphology. Both types of particles suppressed expression of gelsolin, with metalworking samples showing the most pronounced effect. A slight reduction in caspase-3 expression was observed. Particles from metalworking suppressed IL-6 expression. 3D Epithelial tissues can be used to model exposures to airborne pollutants. Exposure to particles from woodworking and metalworking had a minor effect on tissue viability but affected the expression of inflammation and apoptosis-related genes.
Original languageEnglish
Number of pages13
Publication statusE-pub ahead of print - 22 Dec 2020


  • Nanoparticles
  • metallic compounds
  • airborne particulate
  • occupational environment
  • in vitro exposure
  • alternative testing strategies
  • EpiAirway™
  • 3D tissue models
  • respiratory epithelial tissue

Field of Science

  • 2.10 Nano-technology
  • 3.4 Medical biotechnology
  • 2.6 Medical engineering

Publication Type

  • 6. Other publications


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