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Shim I, Kim W, Kim H, Lim YM, Shin H, Park KS, Yu SM, Kim YH, Sung HK, Eom IC, Kim P, Yu SD. Comparative Cytotoxicity Study of PM2.5 and TSP Collected from Urban Areas. Toxics 2021; 9:toxics9070167. [PMID: 34357910 PMCID: PMC8309706 DOI: 10.3390/toxics9070167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 01/21/2023]
Abstract
Ambient particulate matter 2.5 (PM2.5) and total suspended particles (TSPs) are common airborne pollutants that cause respiratory and cardiovascular diseases. We investigated the differences of cytotoxicity and mechanism between PM2.5 and TSP activity in human alveolar epithelial A549 cells. Atmospheric samples from the central district of Seoul were collected and their chemical compositions were analyzed by inductively-coupled plasma mass spectrometry and ion chromatography. PM2.5 and TSP contained high concentrations of heavy metals (Cu, Fe, Zn, and Pb). The most abundant ions in PM2.5 were SO42-, NH4+, and NO3-. A549 cells were exposed to PM2.5 and TSP (25-200 µg/mL) for 24 h. TSP was more cytotoxic than PM2.5 per unit mass. PM2.5 induced oxidative stress, as evidenced by increased levels of a glutamate-cysteine ligase modifier, whereas low-concentration TSP increased hemeoxygenase-1 levels. PM2.5 and TSP did not affect c-Jun N-terminal kinase expression. The levels of nuclear factor erythroid 2-related factor 2 (Nrf2) in PM2.5- and TSP-treated cells decreased significantly in the cytosol and increased in the nucleus. Thus, Nrf2 may be a key transcription factor for detoxifying environmental airborne particles in A549 cells. TSP and PM2.5 could activate the protective Kelch-like ECH-associated protein 1/Nrf2 pathway in A549 cells.
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Affiliation(s)
- Ilseob Shim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
- Correspondence: ; Tel.: +82-032-560-8474
| | - Woong Kim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Haewon Kim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Yeon-Mi Lim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Hyejung Shin
- Climate and Air Quality Research Department, National Institute of Environmental Research, Incheon 404-708, Korea;
| | - Kwang Su Park
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Seok Min Yu
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Young Hee Kim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Hwa Kyung Sung
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Ig-Chun Eom
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Pilje Kim
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
| | - Seung-Do Yu
- Environmental Health Research Department, National Institute of Environmental Research, Incheon 404-708, Korea; (W.K.); (H.K.); (Y.-M.L.); (K.S.P.); (S.M.Y.); (Y.H.K.); (H.K.S.); (I.-C.E.); (P.K.); (S.-D.Y.)
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