PMID- 31726018 OWN - NLM STAT- MEDLINE DCOM- 20200721 LR - 20211204 IS - 1535-4989 (Electronic) IS - 1044-1549 (Linking) VI - 62 IP - 5 DP - 2020 May TI - Effect of Iron Deficiency on a Murine Model of Smoke-induced Emphysema. PG - 588-597 LID - 10.1165/rcmb.2018-0239OC [doi] AB - Smoking is a major risk factor for chronic obstructive pulmonary disease (COPD). Smoking susceptibility is important for the onset and development of COPD. We previously reported an association between serum iron concentrations and pulmonary function in male smokers. However, the mechanism governing smoking susceptibility in relation to iron deficiency is unclear; this study aimed to elucidate this mechanism. C57BL/6 male mice were fed an iron-deficient or normal diet and then exposed to cigarette smoke. BAL, histological analysis, and pulmonary function tests were performed after cigarette smoke exposure. Human alveolar type II epithelial A549 cells were treated with an iron chelator. Subsequently, A549 cells were exposed to cigarette smoke extract. In mice exposed to cigarette smoke for 2 weeks, the concentration of alveolar macrophages in the BAL fluid recovered from iron-deficient mice was significantly higher than that in normal diet mice. IL-6 and MCP-1 (monocyte chemotactic protein 1) concentrations in the BAL fluid increased significantly from baseline in iron-deficient mice, but not in normal diet mice. In mice exposed to cigarette smoke for 8 weeks, the pathological mean linear intercepts, physiological total lung capacity, and functional residual capacity in the lungs of iron-deficient mice were significantly greater than in normal diet mice. Phosphorylation of NF-kappaB was enhanced in the lungs of iron-deficient mice exposed to cigarette smoke and in the iron-chelating A549 cells exposed to cigarette smoke extract. Iron deficiency exaggerated cigarette smoke-induced pulmonary inflammation, suggesting that it may accelerate COPD development. FAU - Sato, Kento AU - Sato K AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Inoue, Sumito AU - Inoue S AUID- ORCID: 0000-0002-1817-9761 AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Igarashi, Akira AU - Igarashi A AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Tokairin, Yoshikane AU - Tokairin Y AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Yamauchi, Keiko AU - Yamauchi K AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Kimura, Tomomi AU - Kimura T AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Nishiwaki, Michiko AU - Nishiwaki M AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Nemoto, Takako AU - Nemoto T AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Nakano, Hiroshi AU - Nakano H AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Sato, Masamichi AU - Sato M AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Machida, Hiroyoshi AU - Machida H AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Yang, Sujeong AU - Yang S AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Minegishi, Yukihiro AU - Minegishi Y AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Furuyama, Kodai AU - Furuyama K AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Watanabe, Masafumi AU - Watanabe M AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan; and. FAU - Shibata, Yoko AU - Shibata Y AUID- ORCID: 0000-0003-1794-0026 AD - Department of Pulmonary Medicine, Fukushima Medical University, Fukushima, Japan. LA - eng PT - Journal Article PL - United States TA - Am J Respir Cell Mol Biol JT - American journal of respiratory cell and molecular biology JID - 8917225 RN - 0 (Ions) RN - 0 (Iron Chelating Agents) RN - 0 (NF-kappa B) RN - E1UOL152H7 (Iron) SB - IM CIN - Am J Respir Cell Mol Biol. 2020 May;62(5):541-542. PMID: 31743655 MH - A549 Cells MH - Animals MH - Bronchoalveolar Lavage Fluid MH - Diet MH - Dietary Supplements MH - Disease Models, Animal MH - Emphysema/blood/*etiology MH - Erythrocyte Count MH - Humans MH - Inflammation/blood/complications/pathology MH - Ions MH - Iron/blood MH - Iron Chelating Agents/pharmacology MH - *Iron Deficiencies MH - Lung/pathology MH - Male MH - Mice, Inbred C57BL MH - NF-kappa B/metabolism MH - Phosphorylation/drug effects MH - Smoking/*adverse effects OTO - NOTNLM OT - chronic obstructive pulmonary disease OT - emphysema OT - iron deficiency OT - murine model OT - smoking EDAT- 2019/11/15 06:00 MHDA- 2020/07/22 06:00 CRDT- 2019/11/15 06:00 PHST- 2019/11/15 06:00 [pubmed] PHST- 2020/07/22 06:00 [medline] PHST- 2019/11/15 06:00 [entrez] AID - 10.1165/rcmb.2018-0239OC [doi] PST - ppublish SO - Am J Respir Cell Mol Biol. 2020 May;62(5):588-597. doi: 10.1165/rcmb.2018-0239OC.