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Effects of solubility of urban air fine and coarse particles on cytotoxic and inflammatory responses in RAW 264.7 macrophage cell line.
Toxicol Appl Pharmacol. 2008 Jun 01; 229(2):146-60.TA

Abstract

We investigated the inflammatory and cytotoxic activities of the water-soluble and -insoluble as well as organic-solvent-soluble and -insoluble fractions of urban air fine (PM(2.5-0.2)) and coarse (PM(10-2.5)) particulate samples. The samples were collected with a high volume cascade impactor (HVCI) in 7-week sampling campaigns of selected seasons in six European cities. Mouse macrophage cells (RAW 264.7) were exposed to the samples for 24 h. The production of nitric oxide (NO) and proinflammatory cytokines (TNFalpha, IL-6), and cytotoxicity (MTT-test, apoptosis, cell cycle) were measured. The inflammatory and cytotoxic responses in both size ranges were mostly associated with the insoluble particulate fractions. However, both the water- and organic-solvent-soluble particulate fractions induced TNFalpha production and apoptosis and had some other cytotoxic effects. Soil-derived water-soluble and -insoluble components of the chemical PM(2.5-0.2) mass closure had consistent positive correlations with the responses, while the correlations were negative with the secondary inorganic anions (NO(3)(-), NH(4)(+), non-sea-salt SO(4)(2-)) and particulate organic matter (POM). With the PM(10-2.5) samples, sea salt and soluble soil components correlated positively with the induced toxic responses. In this size range, a possible underestimation of the insoluble, soil-related compounds containing Si and Ca, and biological components of POM, increased uncertainties in the evaluation of associations of the mass closure components with the responses. It is concluded that insoluble components of the complex urban air particulate mixture exert the highest inflammatory and cytotoxic activities in the macrophage cell line but, at the same time, they may operate as carriers for active water- and lipid-soluble components.

Authors+Show Affiliations

National Public Health Institute, Department of Environmental Health, Kuopio, Finland. Pasi.Jalava@ktl.fiNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18325559

Citation

Jalava, Pasi I., et al. "Effects of Solubility of Urban Air Fine and Coarse Particles On Cytotoxic and Inflammatory Responses in RAW 264.7 Macrophage Cell Line." Toxicology and Applied Pharmacology, vol. 229, no. 2, 2008, pp. 146-60.
Jalava PI, Salonen RO, Pennanen AS, et al. Effects of solubility of urban air fine and coarse particles on cytotoxic and inflammatory responses in RAW 264.7 macrophage cell line. Toxicol Appl Pharmacol. 2008;229(2):146-60.
Jalava, P. I., Salonen, R. O., Pennanen, A. S., Happo, M. S., Penttinen, P., Hälinen, A. I., Sillanpää, M., Hillamo, R., & Hirvonen, M. R. (2008). Effects of solubility of urban air fine and coarse particles on cytotoxic and inflammatory responses in RAW 264.7 macrophage cell line. Toxicology and Applied Pharmacology, 229(2), 146-60. https://doi.org/10.1016/j.taap.2008.01.006
Jalava PI, et al. Effects of Solubility of Urban Air Fine and Coarse Particles On Cytotoxic and Inflammatory Responses in RAW 264.7 Macrophage Cell Line. Toxicol Appl Pharmacol. 2008 Jun 1;229(2):146-60. PubMed PMID: 18325559.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of solubility of urban air fine and coarse particles on cytotoxic and inflammatory responses in RAW 264.7 macrophage cell line. AU - Jalava,Pasi I, AU - Salonen,Raimo O, AU - Pennanen,Arto S, AU - Happo,Mikko S, AU - Penttinen,Piia, AU - Hälinen,Arja I, AU - Sillanpää,Markus, AU - Hillamo,Risto, AU - Hirvonen,Maija-Riitta, Y1 - 2008/01/26/ PY - 2007/10/05/received PY - 2007/12/11/revised PY - 2008/01/11/accepted PY - 2008/3/8/pubmed PY - 2008/8/5/medline PY - 2008/3/8/entrez SP - 146 EP - 60 JF - Toxicology and applied pharmacology JO - Toxicol Appl Pharmacol VL - 229 IS - 2 N2 - We investigated the inflammatory and cytotoxic activities of the water-soluble and -insoluble as well as organic-solvent-soluble and -insoluble fractions of urban air fine (PM(2.5-0.2)) and coarse (PM(10-2.5)) particulate samples. The samples were collected with a high volume cascade impactor (HVCI) in 7-week sampling campaigns of selected seasons in six European cities. Mouse macrophage cells (RAW 264.7) were exposed to the samples for 24 h. The production of nitric oxide (NO) and proinflammatory cytokines (TNFalpha, IL-6), and cytotoxicity (MTT-test, apoptosis, cell cycle) were measured. The inflammatory and cytotoxic responses in both size ranges were mostly associated with the insoluble particulate fractions. However, both the water- and organic-solvent-soluble particulate fractions induced TNFalpha production and apoptosis and had some other cytotoxic effects. Soil-derived water-soluble and -insoluble components of the chemical PM(2.5-0.2) mass closure had consistent positive correlations with the responses, while the correlations were negative with the secondary inorganic anions (NO(3)(-), NH(4)(+), non-sea-salt SO(4)(2-)) and particulate organic matter (POM). With the PM(10-2.5) samples, sea salt and soluble soil components correlated positively with the induced toxic responses. In this size range, a possible underestimation of the insoluble, soil-related compounds containing Si and Ca, and biological components of POM, increased uncertainties in the evaluation of associations of the mass closure components with the responses. It is concluded that insoluble components of the complex urban air particulate mixture exert the highest inflammatory and cytotoxic activities in the macrophage cell line but, at the same time, they may operate as carriers for active water- and lipid-soluble components. SN - 0041-008X UR - https://www.unboundmedicine.com/medline/citation/18325559/Effects_of_solubility_of_urban_air_fine_and_coarse_particles_on_cytotoxic_and_inflammatory_responses_in_RAW_264_7_macrophage_cell_line_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0041-008X(08)00022-7 DB - PRIME DP - Unbound Medicine ER -