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Chen S, Xia J, Zhang Y, Zhan Q. IL35 attenuated LPS-induced acute lung injury by regulating macrophage polarization. Mol Biol Rep 2022; 49:5811-5820. [PMID: 35748972 PMCID: PMC9244303 DOI: 10.1007/s11033-022-07293-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/27/2022] [Accepted: 02/23/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND Interleukin 35 (IL35) has been reported to play a role in acute lung injury (ALI); however, the current results regarding the relationship between IL35 and ALI are inconsistent. Therefore, we aimed to further determine the function of IL35 in ALI in mice and the potential mechanism in this paper. MATERIALS AND METHODS Hematoxylin-eosin (HE) staining and Masson staining were used to evaluate lung injury in mice. Immunohistochemical staining was used to evaluate the expression of IL35 p35, TLR4 and MD2 and the Bax/Bcl2 and p-P65/P65 ratios. The expression levels of IL35 EBi3, CD68, CD206 and MPO were assessed by immunofluorescence staining. RT-PCR was used to examine the expression levels of IL1β and IL6. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining was performed to detect apoptotic cells. RESULTS Overexpression of IL35 alleviated LPS-induced ALI in mice. IL35 overexpression decreased the expression of CD68 and increased the expression of CD206 in mice with ALI. Furthermore, upregulation of IL35 expression obviously reduced the expression of MPO, IL1β and IL6 in the lung tissues of mice with ALI. Mechanistically, IL35 suppressed the TLR4/NFκB-P65 pathway, leading to the promotion of the M1 to M2 macrophage transition and alleviation of inflammation in mice with ALI. CONCLUSIONS IL35 relieved LPS-induced inflammation and ALI in mice by regulating M1/M2 macrophage polarization and inhibiting the activation of the TLR4/NFκB-P65 pathway.
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Affiliation(s)
- Shengsong Chen
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, No 9, Dongdan Santao, Dongcheng District, 100730, Beijing, P. R. China
- National Center for Respiratory Medicine, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
- National Clinical Research Center for Respiratory Diseases, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
- WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
| | - Jingen Xia
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
- National Center for Respiratory Medicine, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
- National Clinical Research Center for Respiratory Diseases, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
- WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China
| | - Yi Zhang
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
- National Center for Respiratory Medicine, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
- National Clinical Research Center for Respiratory Diseases, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
- WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
| | - Qingyuan Zhan
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, No 9, Dongdan Santao, Dongcheng District, 100730, Beijing, P. R. China.
- National Center for Respiratory Medicine, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
- National Clinical Research Center for Respiratory Diseases, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
- WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, No 2, East Yinghua Road, Chaoyang District, 100029, Beijing, P. R. China.
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Zhang X, Du L, Zhang J, Li C, Zhang J, Lv X. Hordenine Protects Against Lipopolysaccharide-Induced Acute Lung Injury by Inhibiting Inflammation. Front Pharmacol 2021; 12:712232. [PMID: 34539399 PMCID: PMC8440820 DOI: 10.3389/fphar.2021.712232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/17/2021] [Indexed: 12/27/2022] Open
Abstract
Acute lung injury (ALI) is a respiratory disease that leads to death in severe cases. Hordenine (Hor), a barley-derived natural product, has various biological activities, including anti-inflammatory, and anti-oxidation activities. We investigated the effect of Hor on lipopolysaccharide-induced ALI and its potential mechanism. The anti-inflammatory effects of Hor were detected using in vivo and in vitro models by enzyme-linked immunosorbent assay, real-time polymerase chain reaction, western blotting, and molecular docking simulations. Hor inhibited increases in the levels of inflammatory factors both in vivo and in vitro, and its anti-inflammatory effect inhibited activation of protein kinase B, nuclear factor-κB, and mitogen-activated protein kinase signaling. Hor alleviated lipopolysaccharide-induced ALI by inhibiting inflammatory cytokine increases in vivo and in vitro and shows potential for preventing inflammatory disease.
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Affiliation(s)
- Xiyue Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Li Du
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Jinrong Zhang
- Department of Pathogeny Biology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Chunyan Li
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Jie Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Xuejiao Lv
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, China
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Down-regulation of miR-let-7e attenuates LPS-induced acute lung injury in mice via inhibiting pulmonary inflammation by targeting SCOS1/NF-κB pathway. Biosci Rep 2021; 41:227104. [PMID: 33392621 PMCID: PMC7785041 DOI: 10.1042/bsr20201089] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 12/26/2022] Open
Abstract
Excessive pulmonary inflammatory response is critical in the development of acute lung injury (ALI). Previously, microRNAs (miRNAs) have been recognized as an important regulator of inflammation in various diseases. However, the effects and mechanisms of miRNAs on inflammatory response in ALI remain unclear. Herein, we tried to screen miRNAs in the processes of ALI and elucidate the potential mechanism. Using a microarray assay, microRNA let-7e (let-7e) was chose as our target for its reported suppressive roles in several inflammatory diseases. Down-regulation of let-7e by antagomiR-let-7e injection attenuated LPS-induced acute lung injury. We also found that antagomiR-let-7e could obviously improve the survival rate in ALI mice. Moreover, antagomiR-let-7e treatment reduced the production of proinflammatory cytokines (i.e., TNF-α, IL-1β and IL-6) in bronchoalveolar lavage fluid (BALF) of LPS-induced ALI mice. Luciferase reporter assays confirmed that suppressor of cytokine signaling 1 (SOCS1), a powerful attenuator of nuclear factor kappa B (NF-κB) signaling pathway, was directly targeted and suppressed by let-7e in RAW264.7 cells. In addition, it was further observed that SOCS1 was down-regulated, and inversely correlated with let-7e expression levels in lung tissues of ALI mice. Finally, down-regulation of let-7e suppressed the activation of NF-κB pathway, as evidenced by the reduction of p-IκBα, and nuclear p-p65 expressions in ALI mice. Collectively, our findings indicate that let-7e antagomir protects mice against LPS-induced lung injury via repressing the pulmonary inflammation though regulation of SOCS1/NF-κB pathway, and let-7e may act as a potential therapeutic target for ALI.
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