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Crotonaldehyde induces autophagy-mediated cytotoxicity in human bronchial epithelial cells via PI3K, AMPK and MAPK pathways
Wang, Limeng1,2; Li, Xiang3; Yang, Zhihua4; Pan, Xiujie4; Liu, Xingyu5; Zhu, Maoxiang4; Xie, Jianping3
KeywordCrotonaldehyde Autophagy Pi3k Ampk Mapk
Source PublicationENVIRONMENTAL POLLUTION
2017-09-01
DOI10.1016/j.envpol.2017.03.083
Volume228Pages:287-296
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS SubjectEnvironmental Sciences
WOS Research AreaEnvironmental Sciences & Ecology
WOS KeywordAPOPTOSIS ; INHIBITION ; EXPRESSION ; DISEASE ; DEATH ; RATS ; PHOSPHORYLATION ; 1,3-BUTADIENE ; PATHOGENESIS ; MACROPHAGES
AbstractCrotonaldehyde is an ubiquitous hazardous pollutant in the environment which can be produced naturally, artificially and endogenously. Acute exposure of crotonaldehyde was reported to induce severe lung injury in humans and experimental animals. However, the exact toxicity mechanisms of crotonaldehyde in organisms have not been fully explored. In the present study, we explored the role autophagy played in the cytotoxicity induced by crotonaldehyde in human bronchial epithelial cells (BEAS-2B), and the pathways that mediated autophagy, including the phosphatidylinositol 3-kinase (PI3K) pathway, the AMP-activated protein kinase (AMPK) pathway and the mitogen-activated protein kinase (MAPK) pathways, were examined and validated. We found that crotonaldehyde induced cytotoxicity and autophagy simultaneously in BEAS-2B cells, and blockage of autophagic flux significantly elevated the viability of BEAS-2B exposed to high concentrations of crotonaldehyde. Crotonaldehyde down regulated the activity of PI3K pathway, and elevated the activities of AMPK and MAPK pathways. Pretreatment of specific agonist or antagonist of these pathways could inhibit autophagy and partly improve the viability. These results suggested that acute exposure of crotonaldehyde induced cell death mediated by autophagy, which might be helpful to elucidate the toxicity mechanisms of crotonaldehyde and contribute to environmental and human health risk assessment. (C) 2017 Elsevier Ltd. All rights reserved.
Language英语
WOS IDWOS:000405042100030
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152066
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
3.Zhengzhou Tobacco Res Inst CNTC, Key Lab Tobacco Chem, 2 Fengyang Rd, Zhengzhou 450001, Peoples R China
4.Beijing Inst Radiat Med, Dept Radiat Toxicol & Oncol, 27 Taiping Rd, Beijing 100850, Peoples R China
5.Shanghai Tobacco Grp Corp CNTC, 99 Wansheng South St, Beijing 101121, Peoples R China
Recommended Citation
GB/T 7714
Wang, Limeng,Li, Xiang,Yang, Zhihua,et al. Crotonaldehyde induces autophagy-mediated cytotoxicity in human bronchial epithelial cells via PI3K, AMPK and MAPK pathways[J]. ENVIRONMENTAL POLLUTION,2017,228:287-296.
APA Wang, Limeng.,Li, Xiang.,Yang, Zhihua.,Pan, Xiujie.,Liu, Xingyu.,...&Xie, Jianping.(2017).Crotonaldehyde induces autophagy-mediated cytotoxicity in human bronchial epithelial cells via PI3K, AMPK and MAPK pathways.ENVIRONMENTAL POLLUTION,228,287-296.
MLA Wang, Limeng,et al."Crotonaldehyde induces autophagy-mediated cytotoxicity in human bronchial epithelial cells via PI3K, AMPK and MAPK pathways".ENVIRONMENTAL POLLUTION 228(2017):287-296.
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