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Sung-Mi Park 1 Article
Metabolic Risk/Epidemiology
Effect of Low-Dose Persistent Organic Pollutants on Mitochondrial Function: Human and in Vitro Evidence
Se-A Kim, Hoyul Lee, Sung-Mi Park, Mi-Jin Kim, Yu-Mi Lee, Young-Ran Yoon, Hyun-Kyung Lee, Hyo-Bang Moon, In-Kyu Lee, Duk-Hee Lee
Diabetes Metab J. 2022;46(4):592-604.   Published online January 26, 2022
DOI: https://doi.org/10.4093/dmj.2021.0132
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  • 8 Web of Science
  • 10 Crossref
AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background
Chronic exposure to low-dose persistent organic pollutants (POPs) can induce mitochondrial dysfunction. This study evaluated the association between serum POP concentrations and oxygen consumption rate (OCR) as a marker of mitochondrial function in humans and in vitro cells.
Methods
Serum concentrations of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were measured in 323 adults. The OCRs of platelets and peripheral blood mononuclear cells (PBMCs) were assessed in 20 mL of fresh blood using a Seahorse XF analyzer. Additionally, the in vitro effects of Arochlor-1254, β-hexachlorocyclohexane, and p,p´-dichlorodiphenyltrichloroethane at concentrations of 0.1 pM to 100 nM were evaluated in human platelets, human PBMCs, and Jurkat T-cells.
Results
The association between serum POP concentrations and OCR differed depending on the cell type. As serum OCP concentrations increased, basal platelet OCR levels decreased significantly; according to the OCP quintiles of summary measure, they were 8.6, 9.6, 8.2, 8.0, and 7.1 pmol/min/μg (P trend=0.005). Notably, the basal PBMC OCR levels decreased remarkably as the serum PCB concentration increased. PBMC OCR levels were 46.5, 34.3, 29.1, 16.5, and 13.1 pmol/min/μg according to the PCB quintiles of summary measure (P trend <0.001), and this inverse association was consistently observed in all subgroups stratified by age, sex, obesity, type 2 diabetes mellitus, and hypertension, respectively. In vitro experimental studies have also demonstrated that chronic exposure to low-dose POPs could decrease OCR levels.
Conclusion
The findings from human and in vitro studies suggest that chronic exposure to low-dose POPs can induce mitochondrial dysfunction by impairing oxidative phosphorylation.

Citations

Citations to this article as recorded by  
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  • Is micronucleus assay in oral exfoliated cells a useful biomarker for biomonitoring populations exposed to pesticides? A systematic review with meta-analysis
    Ingra Tais Malacarne, Wilton Mitsunari Takeshita, Daniel Vitor de Souza, Barbara dos Anjos Rosario, Milena de Barros Viana, Ana Claudia Muniz Renno, Daisy Maria Favero Salvadori, Daniel Araki Ribeiro
    Environmental Science and Pollution Research.2022; 29(43): 64392.     CrossRef
  • Comment on: Obesity is Associated with Improved Postoperative Overall Survival, Independent of Skeletal Muscle Mass in Lung Adenocarcinoma by Lee et al.
    Duk‐Hee Lee
    Journal of Cachexia, Sarcopenia and Muscle.2022; 13(5): 2576.     CrossRef

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