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[Studies of immune system parameters in coke plant workers]
W Burak1, J Sroczyński, A Wegiel
1Z Katedry i Kliniki Chorób Wewnetrznych i Zawodowych Sl.AM.
Insights
Coke plant workers exposed to high levels of Benzo[a]pyrene (BaP) showed reduced percentages of T lymphocytes (OKT-3) and helper T cells (OKT-4). These findings suggest BaP exposure may impact specific immune cell populations.
Area of Science:
- Immunotoxicology
- Occupational Health
- Environmental Medicine
Context:
- Coke production facilities are significant sources of polycyclic aromatic hydrocarbons (PAHs), including Benzo[a]pyrene (BaP).
- Occupational exposure to BaP can occur through inhalation and dermal contact in coke plant environments.
- Understanding the immunotoxicological effects of BaP is crucial for assessing worker health risks.
Purpose:
- To investigate the impact of occupational Benzo[a]pyrene (BaP) exposure on immunological parameters in coke plant workers.
- To assess changes in lymphocyte subpopulations, immunoglobulins, and NBT reduction test in relation to BaP exposure levels.
Summary:
- Peripheral blood samples from 232 coke plant workers were analyzed for immunological markers, categorized by BaP exposure.
- No significant differences were observed in overall lymphocyte T and B percentages, immunoglobulin levels (IgG, IgM, IgA), or NBT reduction test compared to controls.
- Workers with the highest BaP exposure exhibited significantly lower percentages of T lymphocytes (OKT-3) and helper T lymphocytes (OKT-4).
Impact:
- Reveals a specific immunotoxic effect of high BaP concentrations on T lymphocyte subpopulations.
- Highlights the potential health risks associated with occupational exposure to BaP in the coke industry.
- Suggests the need for targeted monitoring of immune function in workers exposed to PAHs.
Abstract:
Studies on such parameters of immunological system as lymphocyte subpopulations percentage, immunoglobulins concentration and NBT reduction test were performed in peripheral blood obtained from 232 coke plant workers. All the subjects were divided into groups according to the degree of exposure to BaP. Lymphocyte T and B percentage, immunoglobulins IgG, IgM and IgA concentration and NBT reduction test in the examined groups were not significantly different from those in the control group. However, in subjects exposed to the highest concentrations of BaP the low percentages of lymphocytes T (OKT-3) and lymphocytes TH--helper (OKT-4) were revealed when the lymphocytes T subpopulations were examined (using monoclonal antibodies in indirect immunofluorescent technique). Presumably, the alterations the percentage of lymphocytes T subpopulations depend on high BaP concentration affecting the exposed workers.
