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Abstract
Acute kidney injury (AKI), a major public health problem associated with high mortality and increased risk of progression towards end-stage renal disease, is characterized by the activation of intra-renal haemostatic and inflammatory processes. Platelets, which are present in high numbers in the circulation and can rapidly release a broad spectrum of bioactive mediators, are important acute modulators of inflammation and haemostasis, as they are the first cells to arrive at sites of acute injury, where they interact with endothelial cells and leukocytes. Diminished control of platelet reactivity by endothelial cells and/or an increased release of platelet-activating mediators can lead to uncontrolled platelet activation in AKI. As increased platelet sequestration and increased expression levels of the markers P-selectin, thromboxane A2, CC-chemokine ligand 5 and platelet factor 4 on platelets have been reported in kidneys following AKI, platelet activation likely plays a part in AKI pathology. Results from animal models and some clinical studies highlight the potential of antiplatelet therapies in the preservation of renal function in the context of AKI, but as current strategies also affect other cell types and non-platelet-derived mediators, additional studies are required to further elucidate the extent of platelet contribution to the pathology of AKI and to determine the best therapeutic approach by which to specifically target related pathogenic pathways.
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Affiliation(s)
- Marcel P B Jansen
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Sandrine Florquin
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Joris J T H Roelofs
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.
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3
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Barth A, Brucker N, Moro AM, Nascimento S, Goethel G, Souto C, Fracasso R, Sauer E, Altknecht L, da Costa B, Duarte M, Menezes CB, Tasca T, Arbo MD, Garcia SC. Association between inflammation processes, DNA damage, and exposure to environmental pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:353-362. [PMID: 27718115 DOI: 10.1007/s11356-016-7772-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 09/22/2016] [Indexed: 06/06/2023]
Abstract
Environmental exposure to pollutants, especially polycyclic aromatic hydrocarbons (PAHs), could lead to carcinogenesis development. However, there is a gap on the mechanisms involved in this effect. Therefore, the aim of this study was to investigate the potential relationship between exposure to environmental air pollution and inflammation process in DNA damage in taxi drivers. This study included 45 taxi drivers and 40 controls; non-smokers composed both groups. Biological monitoring was performed through quantification of urinary 1-hydroxypyrene (1-OHP). ICAM-1 (CD54) expression, NTPDase activity, inflammatory cytokine (IL-1β, IL-6, IL-10, TNF-α and IFN-γ) levels, and comet and micronucleus assays were evaluated. The results demonstrated that 1-OHP levels, ICAM-1 expression, NTPDase activity, and DNA damage biomarkers (% tail DNA and micronucleus frequency) were increased in taxi drivers compared to the control group (p < 0.01). Moreover, significant associations were found between 1-OHP levels and ICAM-1 expression, % tail DNA, and micronucleus frequency (p < 0.05). Besides, pro-inflammatory cytokine levels were positively correlated to % tail DNA and micronucleus frequency (p < 0.001). Our findings suggest an important association between environmental exposure to air pollution with increase of ICAM-1 expression and NTPDase activity in taxi drivers. Additionally, the multiple regression linear-analysis demonstrated association between IL-6 and DNA damage. Thus, the present study has provided important evidence that, in addition to environmental exposure to air pollutants, the inflammation process may contribute to DNA damage.
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Affiliation(s)
- Anelise Barth
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
| | - Natália Brucker
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
| | - Angela M Moro
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
| | - Sabrina Nascimento
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
- Post-graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Gabriela Goethel
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
- Post-graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Caroline Souto
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
| | - Rafael Fracasso
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
| | - Elisa Sauer
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
- Post-graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Louise Altknecht
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
| | - Bárbara da Costa
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
| | - Marta Duarte
- Department of Health Sciences, Lutheran University of Brazil, Santa Maria, RS, Brazil
| | - Camila B Menezes
- Post-graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Laboratory of Research in Parasitology, Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Tiana Tasca
- Post-graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Laboratory of Research in Parasitology, Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Marcelo D Arbo
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil
- Post-graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Solange Cristina Garcia
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP.: 90610-000, Brazil.
- Post-graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
- Institute of Cardiology, University Cardiology Foundation, Porto Alegre, RS, Brazil.
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