PMID- 33210591 OWN - NLM STAT- MEDLINE DCOM- 20210112 LR - 20210112 IS - 1007-8738 (Print) IS - 1007-8738 (Linking) VI - 36 IP - 11 DP - 2020 Nov TI - [Exposure of acute severe air pollution promotes inflammatory cell infiltration and increases the levels of proinflammatory cytokines and chemokines in lung tissues of rats]. PG - 977-982 AB - Objective To observe the effect of acute severe air pollution exposure on cytokines and chemokines in lung tissues of rats and explore its significance. Methods During the period of severe air pollution in Beijing from December 17 to 22, 2016, rats were exposed to air pollution for 6 days, and then sacrificed on the 7th day. Lung tissues were taken and their histological changes were observed by HE staining. The levels of 22 cytokines/chemokines in the lung tissue homogenate supernatant were detected by liquid chip method. Results Compared with the control group, the lung tissues of the rats in the air pollution exposure group were characterized by widened alveolar septum, inflammatory cell infiltration and vascular bleeding. Chemokines eotaxin, monocyte chemoattractant protein-1 (MCP-1), macrophage inflammatory protein-2 (MIP-2), regulated on activation, normal T cell expressed and secreted factor (RANTES), and proinflammatory cytokines interleukin 1beta (IL-1beta), IL-17, IL-18, tumor necrosis factor alpha (TNF-alpha) in the supernatant of lung homogenate of rats in the air pollution exposure group significantly increased. But anti-inflammatory IL-10 significantly decreased. Th1 cytokines IL-2 and interferon-gamma (IFN-gamma) did not change, and Th2 cytokines IL-5 increased by 1.65 times and IL-10 decreased by 0.82 times. Conclusion Acute severe air pollution exposure can lead to inflammatory response in lung tissues of rats. The secretion of chemokines eotaxin, MCP-1, MIP-2, RANTES and proinflammatory cytokines IL-1beta, IL-17, IL-18, TNF-alpha are promoted in this process. The infiltrated T cells in lung tissues are dominated by Th2 cells. FAU - Si, Shaoyan AU - Si S AD - Laboratory of Basic Medical Research, Medical Center of PLA Strategic Support Force, Beijing 100101, China. FAU - Song, Shujun AU - Song S AD - Laboratory of Basic Medical Research, Medical Center of PLA Strategic Support Force, Beijing 100101, China. FAU - Qin, Yaya AU - Qin Y AD - Laboratory of Basic Medical Research, Medical Center of PLA Strategic Support Force, Beijing 100101, China. FAU - Wu, Yingying AU - Wu Y AD - Laboratory of Basic Medical Research, Medical Center of PLA Strategic Support Force, Beijing 100101, China. FAU - Xu, Bingxin AU - Xu B AD - Laboratory of Basic Medical Research, Medical Center of PLA Strategic Support Force, Beijing 100101, China. FAU - Wang, Gang AU - Wang G AD - Department of Otorhinolaryngology, Medical Center of PLA Strategic Support Force, Beijing 100101, China. FAU - Zhu, Minli AU - Zhu M AD - Department of Respiratory Medicine, State Environmental Protection Key Laboratory of Environmental Sense Organ Stress and Health, Medical Center of PLA Strategic Support Force, Beijing 100101, China. FAU - Wu, Wei AU - Wu W AD - Department of Otorhinolaryngology, Medical Center of PLA Strategic Support Force, Beijing 100101, China. *Corresponding author, E-mail: yf2000412@163.com. LA - chi PT - Journal Article PL - China TA - Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi JT - Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology JID - 101139110 RN - 0 (Air Pollutants) RN - 0 (Chemokine CCL11) RN - 0 (Chemokines) RN - 0 (Cytokines) SB - IM MH - *Air Pollutants/toxicity MH - Animals MH - Chemokine CCL11 MH - Chemokines/immunology MH - *Cytokines/immunology MH - *Environmental Exposure/adverse effects MH - *Lung/drug effects/immunology MH - Rats MH - Th2 Cells/immunology EDAT- 2020/11/20 06:00 MHDA- 2021/01/13 06:00 CRDT- 2020/11/19 08:47 PHST- 2020/11/19 08:47 [entrez] PHST- 2020/11/20 06:00 [pubmed] PHST- 2021/01/13 06:00 [medline] PST - ppublish SO - Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi. 2020 Nov;36(11):977-982.