Occupational quartz and particle exposure affect systemic levels of inflammatory markers related to inflammasome activation and cardiovascular disease

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Hedbrant, Alexander,Ph.D,1987-Örebro universitet,Institutionen för medicinska vetenskaper,Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro, Sweden,School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, 701 82, Sweden (author)

Occupational quartz and particle exposure affect systemic levels of inflammatory markers related to inflammasome activation and cardiovascular disease

Article/chapterEnglish2023

Publisher, publication year, extent ...

2023-03-13
BioMed Central (BMC),2023
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LIBRIS-ID:oai:DiVA.org:oru-104908
https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-104908URI
https://doi.org/10.1186/s12940-023-00980-1DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-62156URI

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Language:English
Summary in:English

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

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BACKGROUND: The inflammatory responses are central components of diseases associated with particulate matter (PM) exposure, including systemic diseases such as cardiovascular diseases (CVDs). The aim of this study was to determine if exposure to PM, including respirable dust or quartz in the iron foundry environment mediates systemic inflammatory responses, focusing on the NLRP3 inflammasome and novel or established inflammatory markers of CVDs.METHODS: The exposure to PM, including respirable dust, metals and quartz were determined in 40 foundry workers at two separate occasions per worker. In addition, blood samples were collected both pre-shift and post-shift and quantified for inflammatory markers. The respirable dust and quartz exposures were correlated to levels of inflammatory markers in blood using Pearson, Kendall τ and mixed model statistics. Analyzed inflammatory markers included: 1) general markers of inflammation, including interleukins, chemokines, acute phase proteins, and white blood cell counts, 2) novel or established inflammatory markers of CVD, such as growth/differentiation factor-15 (GDF-15), CD40 ligand, soluble suppressor of tumorigenesis 2 (sST2), intercellular/vascular adhesion molecule-1 (ICAM-1, VCAM-1), and myeloperoxidase (MPO), and 3) NLRP3 inflammasome-related markers, including interleukin (IL)-1β, IL-18, IL-1 receptor antagonist (IL-1Ra), and caspase-1 activity.RESULTS: The average respirator adjusted exposure level to respirable dust and quartz for the 40 foundry workers included in the study was 0.65 and 0.020 mg/m3, respectively. Respirable quartz exposure correlated with several NLRP3 inflammasome-related markers, including plasma levels of IL-1β and IL-18, and several caspase-1 activity measures in monocytes, demonstrating a reverse relationship. Respirable dust exposure mainly correlated with non-inflammasome related markers like CXCL8 and sST2. CONCLUSIONS: The finding that NLRP3 inflammasome-related markers correlated with PM and quartz exposure suggest that this potent inflammatory cellular mechanism indeed is affected even at current exposure levels in Swedish iron foundries. The results highlight concerns regarding the safety of current exposure limits to respirable dust and quartz, and encourage continuous efforts to reduce exposure in dust and quartz exposed industries.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Hälsovetenskap Arbetsmedicin och miljömedicin hsv//swe
MEDICAL AND HEALTH SCIENCES Health Sciences Occupational Health and Environmental Health hsv//eng
CVD biomarkers
Inflammation
NLRP3 inflammasome
Occupational exposure
PM
Silica

Added entries (persons, corporate bodies, meetings, titles ...)

Engström, Christopher,1987-Mälardalens universitet,Utbildningsvetenskap och Matematik(Swepub:mdh)cem02 (author)
Andersson, Lena,1965-Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län,Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro, Sweden; Department of Occupational and Environmental Medicine, Örebro University Hospital, Örebro, Sweden,School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, 701 82, Sweden(Swepub:oru)laas (author)
Eklund, Daniel,1984-Örebro universitet,Institutionen för medicinska vetenskaper,Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro, Sweden,School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, 701 82, Sweden(Swepub:oru)ded (author)
Westberg, Håkan,1949-School of Medical Sciences, Faculty of Medicine and Health, Örebro University; Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro, Sweden; Department of Occupational and Environmental Medicine, Örebro University Hospital, Örebro, Sweden,School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, 701 82, Sweden(Swepub:oru)hwg (author)
Persson, Alexander,1978-Örebro universitet,Institutionen för medicinska vetenskaper,Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, 701 82, Örebro, Sweden,School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, 701 82, Sweden(Swepub:oru)axpn (author)
Särndahl, Eva,1963-Örebro universitet,Institutionen för medicinska vetenskaper,Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro, Sweden,School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, 701 82, Sweden(Swepub:oru)easl (author)
Örebro universitetInstitutionen för medicinska vetenskaper (creator_code:org_t)

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