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Yuan Z, Wang Q, Tan Y, Wei S, Shen J, Zhuang L, Yang Q, Xu Y, Luo Y. Methylprednisolone alleviates lung injury in sepsis by regulating miR-151-5p/USP38 pathway. Int Immunopharmacol 2024; 138:112548. [PMID: 38944949 DOI: 10.1016/j.intimp.2024.112548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 07/02/2024]
Abstract
BACKGROUND Acute lung injury (ALI) is manifested by increased blood vessel permeability within the lungs and subsequent impairment of alveolar gas exchange. Methylprednisolone (MP) is commonly used as a treatment for ALI to reduce inflammation, yet its molecular mechanism remains unclear. This study aims to explore the underlying mechanisms of MP on ALI in a model induced by lipopolysaccharide (LPS). MATERIAL AND METHODS The proliferation, viability, apoptosis, and miR-151-5p expression of alveolar type II epithelial cells (AECII) were detected using the cell EdU assay, Annexin V/PI Apoptosis Kit, counting kit-8 (CCK-8) assay, and RT-qPCR. Western blot analysis was used to detect the Usp38 protein level. IL-6 and TNF-α were measured by ELISA. The combination of miR-151-5p and USP38 was determined by chromatin immunoprecipitation (ChIP)-PCR and dual-luciferase reporter assay. RESULTS MP greatly improved pulmonary function in vivo, reduced inflammation, and promoted the proliferation of the alveolar type II epithelial cells (AECII) in vitro. By comparing the alterations of microRNAs in lung tissues between MP treatment and control groups, we found that miR-151-5p exhibited a significant increase after LPS-treated AECII, but decreased after MP treatment. Confirmed by a luciferase reporter assay, USP38, identified as a downstream target of miR-151-5p, was found to increase after MP administration. Inhibition of miR-151-5p or overexpression of USP38 in AECII significantly improved the anti-inflammatory, anti-apoptotic, and proliferation-promotive effects of MP. CONCLUSION In summary, our data demonstrated that MP alleviates the inflammation and apoptosis of AECII induced by LPS, and promotes the proliferation of AECII partially via miR-151-5p suppression and subsequent USP38 activation.
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Affiliation(s)
- Zhize Yuan
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China
| | - Qiuyun Wang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Yongchang Tan
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Shiyou Wei
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China; Outcomes Research Consortium, Cleveland, OH, USA
| | - Jie Shen
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Lei Zhuang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Qianzi Yang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.
| | - Yiqiong Xu
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.
| | - Yan Luo
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.
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Aravindraja C, Jeepipalli S, Duncan WD, Vekariya KM, Rahaman SO, Chan EKL, Kesavalu L. Streptococcus gordonii Supragingival Bacterium Oral Infection-Induced Periodontitis and Robust miRNA Expression Kinetics. Int J Mol Sci 2024; 25:6217. [PMID: 38892405 PMCID: PMC11172800 DOI: 10.3390/ijms25116217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/24/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Streptococcus gordonii (S. gordonii, Sg) is one of the early colonizing, supragingival commensal bacterium normally associated with oral health in human dental plaque. MicroRNAs (miRNAs) play an important role in the inflammation-mediated pathways and are involved in periodontal disease (PD) pathogenesis. PD is a polymicrobial dysbiotic immune-inflammatory disease initiated by microbes in the gingival sulcus/pockets. The objective of this study is to determine the global miRNA expression kinetics in S. gordonii DL1-infected C57BL/6J mice. All mice were randomly divided into four groups (n = 10 mice/group; 5 males and 5 females). Bacterial infection was performed in mice at 8 weeks and 16 weeks, mice were euthanized, and tissues harvested for analysis. We analyzed differentially expressed (DE) miRNAs in the mandibles of S. gordonii-infected mice. Gingival colonization/infection by S. gordonii and alveolar bone resorption (ABR) was confirmed. All the S. gordonii-infected mice at two specific time points showed bacterial colonization (100%) in the gingival surface, and a significant increase in mandible and maxilla ABR (p < 0.0001). miRNA profiling revealed 191 upregulated miRNAs (miR-375, miR-34b-5p) and 22 downregulated miRNAs (miR-133, miR-1224) in the mandibles of S. gordonii-infected mice at the 8-week mark. Conversely, at 16 weeks post-infection, 10 miRNAs (miR-1902, miR-203) were upregulated and 32 miRNAs (miR-1937c, miR-720) were downregulated. Two miRNAs, miR-210 and miR-423-5p, were commonly upregulated, and miR-2135 and miR-145 were commonly downregulated in both 8- and 16-week-infected mice mandibles. Furthermore, we employed five machine learning (ML) algorithms to assess how the number of miRNA copies correlates with S. gordonii infections in mice. In the ML analyses, miR-22 and miR-30c (8-week), miR-720 and miR-339-5p (16-week), and miR-720, miR-22, and miR-339-5p (combined 8- and 16-week) emerged as the most influential miRNAs.
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Affiliation(s)
- Chairmandurai Aravindraja
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA; (C.A.); (S.J.); (K.M.V.)
| | - Syam Jeepipalli
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA; (C.A.); (S.J.); (K.M.V.)
| | - William D. Duncan
- Department of Community Dentistry and Behavioral Science, College of Dentistry, University of Florida, Gainesville, FL 32610, USA;
| | - Krishna Mukesh Vekariya
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA; (C.A.); (S.J.); (K.M.V.)
| | - Shaik O. Rahaman
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA;
| | - Edward K. L. Chan
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA;
| | - Lakshmyya Kesavalu
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA; (C.A.); (S.J.); (K.M.V.)
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA;
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Zhou T, Long K, Chen J, Zhi L, Zhou X, Gao P. Global research progress of endothelial cells and ALI/ARDS: a bibliometric analysis. Front Physiol 2024; 15:1326392. [PMID: 38774649 PMCID: PMC11107300 DOI: 10.3389/fphys.2024.1326392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/18/2024] [Indexed: 05/24/2024] Open
Abstract
Background Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are severe respiratory conditions with complex pathogenesis, in which endothelial cells (ECs) play a key role. Despite numerous studies on ALI/ARDS and ECs, a bibliometric analysis focusing on the field is lacking. This study aims to fill this gap by employing bibliometric techniques, offering an overarching perspective on the current research landscape, major contributors, and emerging trends within the field of ALI/ARDS and ECs. Methods Leveraging the Web of Science Core Collection (WoSCC) database, we conducted a comprehensive search for literature relevant to ALI/ARDS and ECs. Utilizing Python, VOSviewer, and CiteSpace, we performed a bibliometric analysis on the corpus of publications within this field. Results This study analyzed 972 articles from 978 research institutions across 40 countries or regions, with a total of 5,277 authors contributing. These papers have been published in 323 different journals, spanning 62 distinct research areas. The first articles in this field were published in 2011, and there has been a general upward trend in annual publications since. The United States, Germany, and China are the principal contributors, with Joe G. N. Garcia from the University of Arizona identified as the leading authority in this field. American Journal of Physiology-Lung Cellular and Molecular Physiology has the highest publication count, while Frontiers in Immunology has been increasingly focusing on this field in recent years. "Cell Biology" stands as the most prolific research area within the field. Finally, this study identifies endothelial glycocalyx, oxidative stress, pyroptosis, TLRs, NF-κB, and NLRP3 as key terms representing research hotspots and emerging frontiers in this field. Conclusion This bibliometric analysis provides a comprehensive overview of the research landscape surrounding ALI/ARDS and ECs. It reveals an increasing academic focus on ALI/ARDS and ECs, particularly in the United States, Germany, and China. Our analysis also identifies several emerging trends and research hotspots, such as endothelial glycocalyx, oxidative stress, and pyroptosis, indicating directions for future research. The findings can guide scholars, clinicians, and policymakers in targeting research gaps and setting priorities to advance the field.
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Affiliation(s)
- Tong Zhou
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kunlan Long
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jun Chen
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lijia Zhi
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiujuan Zhou
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Peiyang Gao
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Yang D, Liang H, Zhu X, Li B, Li C, Hu G, Du X, Dang G, Song Y, Ma X, Zhang P, Chen T, Liu B, Yan L, Pan CS, Sun K, Huo X, Feng Y, Wang X, Ai D, Han JY, Feng J. Farnesoid X Receptor Protects Murine Lung against IL-6-promoted Ferroptosis Induced by Polyriboinosinic-Polyribocytidylic Acid. Am J Respir Cell Mol Biol 2024; 70:364-378. [PMID: 38300138 DOI: 10.1165/rcmb.2023-0172oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 01/31/2024] [Indexed: 02/02/2024] Open
Abstract
Various infections trigger a storm of proinflammatory cytokines in which IL-6 acts as a major contributor and leads to diffuse alveolar damage in patients. However, the metabolic regulatory mechanisms of IL-6 in lung injury remain unclear. Polyriboinosinic-polyribocytidylic acid [poly(I:C)] activates pattern recognition receptors involved in viral sensing and is widely used in alternative animal models of RNA virus-infected lung injury. In this study, intratracheal instillation of poly(I:C) with or without an IL-6-neutralizing antibody model was combined with metabonomics, transcriptomics, and so forth to explore the underlying molecular mechanisms of IL-6-exacerbated lung injury. We found that poly(I:C) increased the IL-6 concentration, and the upregulated IL-6 further induced lung ferroptosis, especially in alveolar epithelial type II cells. Meanwhile, lung regeneration was impaired. Mechanistically, metabolomic analysis showed that poly(I:C) significantly decreased glycolytic metabolites and increased bile acid intermediate metabolites that inhibited the bile acid nuclear receptor farnesoid X receptor (FXR), which could be reversed by IL-6-neutralizing antibody. In the ferroptosis microenvironment, IL-6 receptor monoclonal antibody tocilizumab increased FXR expression and subsequently increased the Yes-associated protein (YAP) concentration by enhancing PKM2 in A549 cells. FXR agonist GW4064 and liquiritin, a potential natural herbal ingredient as an FXR regulator, significantly attenuated lung tissue inflammation and ferroptosis while promoting pulmonary regeneration. Together, the findings of the present study provide the evidence that IL-6 promotes ferroptosis and impairs regeneration of alveolar epithelial type II cells during poly(I:C)-induced murine lung injury by regulating the FXR-PKM2-YAP axis. Targeting FXR represents a promising therapeutic strategy for IL-6-associated inflammatory lung injury.
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Affiliation(s)
- Dongmin Yang
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Hongbiao Liang
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Xiangrui Zhu
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Bochuan Li
- Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Chun Li
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China; and
| | - Guizimeng Hu
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Xing Du
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Guohui Dang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yuwei Song
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Xiaolong Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Peng Zhang
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Tianqi Chen
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Bo Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Li Yan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Chun-Shui Pan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Kai Sun
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Xinmei Huo
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Yingmei Feng
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Xian Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Ding Ai
- Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Jing-Yan Han
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Juan Feng
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, and
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
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Wang X, Fu Y, Yang X, Chen Y, Zeng N, Hu S, Ouyang S, Pan X, Wu S. Treadmill training improves lung function and inhibits alveolar cell apoptosis in spinal cord injured rats. Sci Rep 2024; 14:9723. [PMID: 38678068 PMCID: PMC11055912 DOI: 10.1038/s41598-024-59662-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 04/12/2024] [Indexed: 04/29/2024] Open
Abstract
Secondary lung injury after SCI is a major cause of patient mortality, with apoptosis playing a key role. This study aimed to explore the impact of treadmill training and miR145-5p on the MAPK/Erk signaling pathway and apoptosis in rats with complete SCI. SD rats were used to establish T10 segmental complete SCI models and underwent treadmill training 3, 7, or 14 days postinjury. Various techniques including arterial blood gas analysis, lung wet/dry weight ratio, HE staining, immunofluorescence staining, immunohistochemical staining, qRT-PCR, and Western blotting were employed to assess alterations in lung function and the expression levels of crucial apoptosis-related factors. In order to elucidate the specific mechanism, the impact of miR145-5p on the MAPK/Erk pathway and its role in apoptosis in lung cells were confirmed through miR145-5p overexpression and knockdown experiments. Following spinal cord injury (SCI), an increase in apoptosis, activation of the MAPK/Erk pathway, and impairment of lung function were observed in SCI rats. Conversely, treadmill training resulted in a reduction in alveolar cell apoptosis, suppression of the MAPK/Erk pathway, and enhancement of lung function. The gene MAP3K3 was identified as a target of miR145-5p. The influence of miR145-5p on the MAPK/Erk pathway and its impact on apoptosis in alveolar cells were confirmed through the manipulation of miR145-5p expression levels. The upregulation of miR145-5p in spinal cord injury (SCI) rats led to a reduction in MAP3K3 protein expression within lung tissues, thereby inhibiting the MAPK/Erk signaling pathway and decreasing apoptosis. Contrarily, rats with miR145-5p knockdown undergoing treadmill training exhibited an increase in miR145-5p expression levels, resulting in the inhibition of MAP3K3 protein expression in lung tissues, suppression of the MAPK/Erk pathway, and mitigation of lung cell apoptosis. Ultimately, the findings suggest that treadmill training may attenuate apoptosis in lung cells post-spinal cord injury by modulating the MAP3K3 protein through miR145-5p to regulate the MAPK/Erk signaling pathway.
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Affiliation(s)
- Xianbin Wang
- Affiliated Hospital of Guizhou Medical University, 28 Guiyi Street, Yunyan District, Guiyang, Guizhou, China
- Guizhou Medical University, 9 Beijing Street, Yunyan District, Guiyang, Guizhou, China
| | - Yingxue Fu
- Affiliated Hospital of Guizhou Medical University, 28 Guiyi Street, Yunyan District, Guiyang, Guizhou, China
- Guizhou Medical University, 9 Beijing Street, Yunyan District, Guiyang, Guizhou, China
| | - Xianglian Yang
- Guizhou Medical University, 9 Beijing Street, Yunyan District, Guiyang, Guizhou, China
| | - Yan Chen
- Affiliated Hospital of Guizhou Medical University, 28 Guiyi Street, Yunyan District, Guiyang, Guizhou, China
| | - Ni Zeng
- Affiliated Hospital of Guizhou Medical University, 28 Guiyi Street, Yunyan District, Guiyang, Guizhou, China
| | - Shouxing Hu
- Guizhou Medical University, 9 Beijing Street, Yunyan District, Guiyang, Guizhou, China
| | - Shuai Ouyang
- Guizhou Medical University, 9 Beijing Street, Yunyan District, Guiyang, Guizhou, China
| | - Xiao Pan
- Guizhou Medical University, 9 Beijing Street, Yunyan District, Guiyang, Guizhou, China
| | - Shuang Wu
- Affiliated Hospital of Guizhou Medical University, 28 Guiyi Street, Yunyan District, Guiyang, Guizhou, China.
- Guizhou Medical University, 9 Beijing Street, Yunyan District, Guiyang, Guizhou, China.
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Chen M, Lv J, Guo N, Ji T, Fang Y, Wang Z, He X. Crtc1 deficiency protects against sepsis-associated acute lung injury through activating akt signaling pathway. J Inflamm (Lond) 2024; 21:12. [PMID: 38644501 PMCID: PMC11034098 DOI: 10.1186/s12950-024-00385-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 04/08/2024] [Indexed: 04/23/2024] Open
Abstract
BACKGROUND Interplay between systemic inflammation and programmed cell death contributes to the pathogenesis of acute lung injury (ALI). cAMP-regulated transcriptional coactivator 1 (CRTC1) has been involved in the normal function of the pulmonary system, but its role in ALI remains unclear. METHODS AND RESULTS We generated a Crtc1 knockout (KO; Crtc1-/-) mouse line. Sepsis-induced ALI was established by cecal ligation and puncture (CLP) for 24 h. The data showed that Ctrc1 KO substantially ameliorated CLP-induced ALI phenotypes, including improved lung structure destruction, reduced pulmonary vascular permeability, diminished levels of proinflammatory cytokines and chemokines, compared with the wildtype mice. Consistently, in lipopolysaccharide (LPS)-treated RAW264.7 cells, Crtc1 knockdown significantly inhibited the expression of inflammatory effectors, including TNF-α, IL-1β, IL-6 and CXCL1, whereas their expressions were significantly enhanced by Crtc1 overexpression. Moreover, both Crtc1 KO in mice and its knockdown in RAW264.7 cells dramatically reduced TUNEL-positive cells and the expression of pro-apoptotic proteins. In contrast, Crtc1 overexpression led to an increase in the pro-apoptotic proteins and LPS-induced TUNEL-positive cells. Mechanically, we found that the phosphorylation of Akt was significantly enhanced by Crtc1 knockout or knockdown, but suppressed by Crtc1 overexpression. Administration of Triciribine, an Akt inhibitor, substantially blocked the protection of Crtc1 knockdown on LPS-induced inflammation and cell death in RAW264.7 cells. CONCLUSIONS Our study demonstrates that CRTC1 contribute to the pathological processes of inflammation and apoptosis in sepsis-induced ALI, and provides mechanistic insights into the molecular function of CRTC1 in the lung. Targeting CRTC1 would be a promising strategy to treat sepsis-induced ALI in clinic.
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Affiliation(s)
- Meng Chen
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, 430071, Wuhan, Hubei, China
- Department of Anesthesiology, Maternal and Child Health Hospital of Hubei Province, 745 Wuluo Road, 430070, Wuhan, Hubei, China
| | - Jian Lv
- Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, 518057, Shenzhen, China
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 100037, Beijing, China
| | - Ningning Guo
- Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, 518057, Shenzhen, China
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 100037, Beijing, China
| | - Tuo Ji
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, 430071, Wuhan, Hubei, China
- Department of Anesthesiology, School and Hospital of Stomatology, Wuhan University, 430079, Wuhan, China
| | - Yu Fang
- Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, 518057, Shenzhen, China
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 100037, Beijing, China
| | - Zhihua Wang
- Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, 518057, Shenzhen, China.
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 100037, Beijing, China.
| | - Xianghu He
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, 430071, Wuhan, Hubei, China.
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Ouyang K, Xie D, Liao H, He Y, Xiong H. Circ_0001786 facilitates gefitinib resistance and malignant progression in non-small cell lung cancer via miR-34b-5p/SRSF1. J Cardiothorac Surg 2024; 19:178. [PMID: 38581057 PMCID: PMC10996225 DOI: 10.1186/s13019-024-02651-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 03/19/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is a widespread cancer and gefitinib is a primary therapy for NSCLC patients. Nevertheless, the underlying mechanisms for the progression of acquired drug resistance have not been clarified. The aim of this study was to investigate the role of circular RNA (circ_0001786) in gefitinib-resistant NSCLC. METHODS Firstly, the expression of circ_0001786, miR-34b-5p and SRSF1 were assayed using qRT-PCR. Subsequently, CCK-8 test was utilized to measure the semi-inhibitory concentration (IC50) of cellular gefitinib. Apoptosis was identified by flow cytometry. At last, dual luciferase assay was applied to prove the binding association between miR-34b-5p, circ_0001786 or SRSF1. RESULTS Our research disclosed that circ_0001786 was heightened in gefitinib-resistant NSCLC cells and tissues. Knockdown of circ_0001786 restrained IC50 values of gefitinib, attenuated the clonogenic ability and facilitated apoptosis in HCC827-GR and PC9-GR. In addition, circ_0001786 was a molecular sponge for miR-34b-5p. Silencing miR-34b-5p rescued the inhibitory impact of circ_0001786 knockdown on IC50 and cell cloning ability. Moreover, miR-34b-5p directly targeted SRSF1. Importantly, circ_0001786 enhanced gefitinib tolerance and malignant development in NSCLC through miR-34b-5p/SRSF1 pathway. CONCLUSION This research revealed a novel mechanism by which circ_0001786 enhanced NSCLC resistance to gefitinib by sponging miR-34b-5p and upregulating SRSF1. circ_0001786 was a potential target for improving the treatment of gefitinib-resistant NSCLC patients.
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Affiliation(s)
- Kaobin Ouyang
- Department of Medical Oncology, Huizhou Municipal Central Hospital of Guangdong Province, NO.41 North Eling Road, Huizhou, 516000, Guangdong Province, China
| | - Dan Xie
- Department of Medical Oncology, Huizhou Municipal Central Hospital of Guangdong Province, NO.41 North Eling Road, Huizhou, 516000, Guangdong Province, China
| | - Haojie Liao
- Department of Medical Oncology, Huizhou Municipal Central Hospital of Guangdong Province, NO.41 North Eling Road, Huizhou, 516000, Guangdong Province, China
| | - Ying He
- Department of Medical Oncology, Huizhou Municipal Central Hospital of Guangdong Province, NO.41 North Eling Road, Huizhou, 516000, Guangdong Province, China
| | - Hailin Xiong
- Department of Medical Oncology, Huizhou Municipal Central Hospital of Guangdong Province, NO.41 North Eling Road, Huizhou, 516000, Guangdong Province, China.
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Zhan J, Chen J, Deng L, Lu Y, Luo L. Exploring the ferroptosis-related gene lipocalin 2 as a potential biomarker for sepsis-induced acute respiratory distress syndrome based on machine learning. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167101. [PMID: 38423372 DOI: 10.1016/j.bbadis.2024.167101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Sepsis is a major cause of mortality in patients, and ARDS is one of the most common outcomes. The pathophysiology of acute respiratory distress syndrome (ARDS) caused by sepsis is significantly impacted by genes related to ferroptosis. METHODS In this study, Weighted gene co-expression network analysis (WGCNA), protein-protein interaction (PPI) networks, functional enrichment analysis, and machine learning were employed to identify characterized genes and to construct receiver operating characteristic (ROC) curves. Additionally, DNA methylation levels were quantified and single-cell analysis was conducted. To validate the alterations in the expression of Lipocalin-2 (LCN2) and ferroptosis-related proteins in the in vitro model, Western blotting was carried out, and the changes in intracellular ROS and Fe2+ levels were detected. RESULTS A combination of eight machine learning algorithms, including RFE, LASSO, RandomForest, SVM-RFE, GBDT, Bagging, XGBoost, and Boruta, were used with a machine learning model to highlight the significance of LCN2 as a key gene in sepsis-induced ARDS. Analysis of immune cell infiltration showed a positive correlation between neutrophils and LCN2. In a cell model induced by LPS, it was found that Ferrostatin-1 (Fer-1), a ferroptosis inhibitor, was able to reverse the expression of LCN2. Knocking down LCN2 in BEAS-2B cells reversed the LPS-induced lipid peroxidation, Fe2+ levels, ACSL4, and GPX4 levels, indicating that LCN2, a ferroptosis-related gene (FRG), plays a crucial role in mediating ferroptosis. CONCLUSION Upon establishing an FRG model for individuals with sepsis-induced ARDS, we determined that LCN2 could be a dependable marker for predicting survival in these patients. This finding provides a basis for more accurate ARDS diagnosis and the exploration of innovative treatment options.
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Affiliation(s)
- Jiayi Zhan
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Junming Chen
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Liyan Deng
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Yining Lu
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, Guangdong, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang 524023, Guangdong, China.
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9
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Cheng HP, Bao XW, Luo YY, Li YH, Zhou Y, Hua QZ, Qiu YJ, Liang XY, Huang YH, Liu W, Tang SY, Feng DD, Li C, Luo ZQ. Sulfasalazine ameliorates lipopolysaccharide-induced acute lung injury by inhibiting oxidative stress and nuclear factor-kappaB pathways. Int J Biochem Cell Biol 2024; 169:106530. [PMID: 38246263 DOI: 10.1016/j.biocel.2024.106530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 01/23/2024]
Abstract
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) has a high mortality rate and incidence of complications. The pathophysiology of ALI/ARDS is still not fully understood. The lipopolysaccharide (LPS)-induced mouse model of ALI has been widely used to study human ALI/ARDS. Sulfasalazine (SASP) has antibacterial and anti-inflammatory effects and is used for treating inflammatory bowel and rheumatic diseases. However, the effect of SASP on LPS-induced ALI in mice has not yet been reported. Therefore, we aimed to investigate the effect of SASP on LPS-induced ALI in mice. Mice were intraperitoneally injected with SASP 2 h before or 4 h after LPS modeling. Pulmonary pathological damage was measured based on inflammatory factor expression (malondialdehyde and superoxide dismutase levels) in the lung tissue homogenate and alveolar lavage fluid. The production of inflammatory cytokines and occurrence of oxidative stress in the lungs induced by LPS were significantly mitigated after the prophylactic and long-term therapeutic administration of SASP, which ameliorated ALI caused by LPS. SASP reduced both the production of inflammatory cytokines and occurrence of oxidative stress in RAW264.7 cells, which respond to LPS. Moreover, its mechanism contributed to the suppression of NF-κB and nuclear translocation. In summary, SASP treatment ameliorates LPS-induced ALI by mediating anti-inflammatory and antioxidant effects, which may be attributed to the inhibition of NF-κB activation and promotion of antioxidant defenses. Thus, SASP may be a promising pharmacologic agent for ALI therapy.
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Affiliation(s)
- Hai-Peng Cheng
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xing-Wen Bao
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yong-Yu Luo
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yang-Hang Li
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yan Zhou
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Qing-Zhong Hua
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Yu-Jia Qiu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xin-Yue Liang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yan-Hong Huang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Wei Liu
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Si-Yuan Tang
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Dan-Dan Feng
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Chen Li
- Department of Physiology, Changzhi Medical College, Changzhi, Shanxi, China.
| | - Zi-Qiang Luo
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Organ Fibrosis, Central South University, Changsha, Hunan, China.
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10
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Zhao M, Wang M, Chen X, Gao Y, Chen Q, Wang L, Bao Q, Sun D, Du W, Xu Y, Xie L, Jiang X, Zhang L, Peng L, Zhang B, Yao Y. Targeting progranulin alleviated silica particles-induced pulmonary inflammation and fibrosis via decreasing Il-6 and Tgf-β1/Smad. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133199. [PMID: 38103296 DOI: 10.1016/j.jhazmat.2023.133199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/12/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
Long term exposure to silica particles leads to various diseases, among which silicosis is of great concern. Silicosis is an interstitial lung disease caused by inhalation of silica particles in production environments. However, the mechanisms underlying silicosis remains unclear. Our previous studies revealed that progranulin (Pgrn) promoted the expression of pro-inflammatory factors in alveolar macrophages treated with silica particles and the secretion of extracellular matrix of pulmonary fibroblasts. Nevertheless, the role of Pgrn in silica particles-induced silicosis in vivo was unknown. This study found that silica particles increased Pgrn expression in silicosis patients. Pgrn deficiency reduced lung inflammation and fibrosis in silica particles-induced silicosis mouse models. Subsequently, based on transcriptional sequencing and interleukin (Il) -6 knockout mouse models, results demonstrated that Pgrn deficiency might decrease silicosis inflammation by reducing the production of Il-6, thereby modulating pulmonary fibrosis in the early stage of silicosis mouse models. Furthermore, another mechanism through which Pgrn deficiency reduced fibrosis in silicosis mouse models was the regulation of the transforming growth factor (Tgf) -β1/Smad signaling pathway. Conclusively, Pgrn contributed to silicosis inflammation and fibrosis induced by silica particles, indicating that Pgrn could be a promising therapeutic target.
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Affiliation(s)
- Manyu Zhao
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Mengzhu Wang
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Xuxi Chen
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Ying Gao
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Qing Chen
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Liqun Wang
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Qixue Bao
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Donglei Sun
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Wen Du
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; West China Occupational Pneumoconiosis Cohort Study (WCOPCS) working group, Research Center For Prevention and Therapy of Occupational Disease, West China-PUMC C.C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Yunyi Xu
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Linshen Xie
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; West China Occupational Pneumoconiosis Cohort Study (WCOPCS) working group, Research Center For Prevention and Therapy of Occupational Disease, West China-PUMC C.C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Xia Jiang
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; West China Occupational Pneumoconiosis Cohort Study (WCOPCS) working group, Research Center For Prevention and Therapy of Occupational Disease, West China-PUMC C.C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Ling Zhang
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; West China Occupational Pneumoconiosis Cohort Study (WCOPCS) working group, Research Center For Prevention and Therapy of Occupational Disease, West China-PUMC C.C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Lijun Peng
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; West China Occupational Pneumoconiosis Cohort Study (WCOPCS) working group, Research Center For Prevention and Therapy of Occupational Disease, West China-PUMC C.C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Ben Zhang
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; West China Occupational Pneumoconiosis Cohort Study (WCOPCS) working group, Research Center For Prevention and Therapy of Occupational Disease, West China-PUMC C.C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; Departments of Cardiology, Neurology, and Oncology, Hainan General Hospital and Hainan Affiliated Hospital, Hainan Medical University, Haikou 570311, China.
| | - Yuqin Yao
- Molecular Toxicology Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; West China Occupational Pneumoconiosis Cohort Study (WCOPCS) working group, Research Center For Prevention and Therapy of Occupational Disease, West China-PUMC C.C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China.
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11
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Vaswani CM, Simone J, Pavelick JL, Wu X, Tan GW, Ektesabi AM, Gupta S, Tsoporis JN, Dos Santos CC. Tiny Guides, Big Impact: Focus on the Opportunities and Challenges of miR-Based Treatments for ARDS. Int J Mol Sci 2024; 25:2812. [PMID: 38474059 DOI: 10.3390/ijms25052812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 02/24/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Acute Respiratory Distress Syndrome (ARDS) is characterized by lung inflammation and increased membrane permeability, which represents the leading cause of mortality in ICUs. Mechanical ventilation strategies are at the forefront of supportive approaches for ARDS. Recently, an increasing understanding of RNA biology, function, and regulation, as well as the success of RNA vaccines, has spurred enthusiasm for the emergence of novel RNA-based therapeutics. The most common types of RNA seen in development are silencing (si)RNAs, antisense oligonucleotide therapy (ASO), and messenger (m)RNAs that collectively account for 80% of the RNA therapeutics pipeline. These three RNA platforms are the most mature, with approved products and demonstrated commercial success. Most recently, miRNAs have emerged as pivotal regulators of gene expression. Their dysregulation in various clinical conditions offers insights into ARDS pathogenesis and offers the innovative possibility of using microRNAs as targeted therapy. This review synthesizes the current state of the literature to contextualize the therapeutic potential of miRNA modulation. It considers the potential for miR-based therapeutics as a nuanced approach that incorporates the complexity of ARDS pathophysiology and the multifaceted nature of miRNA interactions.
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Affiliation(s)
- Chirag M Vaswani
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto, ON M5B 1W8, Canada
| | - Julia Simone
- Department of Medicine, McMaster University, Hamilton, ON L8V 5C2, Canada
| | - Jacqueline L Pavelick
- Institute of Medical Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Xiao Wu
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto, ON M5B 1W8, Canada
| | - Greaton W Tan
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto, ON M5B 1W8, Canada
| | - Amin M Ektesabi
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto, ON M5B 1W8, Canada
- Institute of Medical Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Sahil Gupta
- Faculty of Medicine, School of Medicine, The University of Queensland, Herston, QLD 4006, Australia
| | - James N Tsoporis
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto, ON M5B 1W8, Canada
| | - Claudia C Dos Santos
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto, ON M5B 1W8, Canada
- Institute of Medical Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Laboratory Medicine and Pathobiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Interdepartmental Division of Critical Care, St. Michael's Hospital, University of Toronto, Toronto, ON M5B 1W8, Canada
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12
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Wang GY, Xu X, Xiong DY, Deng L, Liu W, Huang XT. CPT1A as a potential therapeutic target for lipopolysaccharide-induced acute lung injury in mice. Sci Rep 2024; 14:1600. [PMID: 38238472 PMCID: PMC10796431 DOI: 10.1038/s41598-024-52042-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 01/12/2024] [Indexed: 01/22/2024] Open
Abstract
Acute lung injury (ALI) remains a high mortality rate with dramatic lung inflammation and alveolar epithelial cell death. Although fatty acid β-oxidation (FAO) impairment has been implicated in the pathogenesis of ALI, whether Carnitine palmitoyltransferase 1A (CPT1A), the rate-limiting enzyme for FAO, plays roles in lipopolysaccharide (LPS)-induced ALI remains unclear. Accordingly, we focused on exploring the effect of CPT1A in the context of ALI and the underlying mechanisms. We found that overexpression of CPT1A (AAV-CPT1A) effectively alleviated lung injury by reduction of lung wet-to-dry ratio, inflammatory cell infiltration, and protein levels in the BALF of ALI mice. Meanwhile, AAV-CPT1A significantly lessened histopathological changes and several cytokines' secretions. In contrast, blocking CPT1A with etomoxir augmented inflammatory responses and lung injury in ALI mice. Furthermore, we found that overexpression of CPT1A with lentivirus reduced the apoptosis rates of alveolar epithelial cells and the expression of apoptosis-related proteins induced by LPS in MLE12 cells, while etomoxir increased the apoptosis of MLE12 cells. Overexpression of CPT1A prevented the drop in bioenergetics, palmitate oxidation, and ATP levels. In conclusion, the results rendered CPT1A worthy of further development into a pharmaceutical drug for the treatment of ALI.
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Affiliation(s)
- Gui-Yun Wang
- Shandong Xiehe University, Jinan, 250109, Shandong, China
| | - Xia Xu
- Shandong Xiehe University, Jinan, 250109, Shandong, China
| | - Da-Yan Xiong
- Xiangya School of Nursing, Central South University, Changsha, 410013, Hunan, China
| | - Lang Deng
- Xiangya School of Nursing, Central South University, Changsha, 410013, Hunan, China
| | - Wei Liu
- Xiangya School of Nursing, Central South University, Changsha, 410013, Hunan, China
| | - Xiao-Ting Huang
- Xiangya School of Nursing, Central South University, Changsha, 410013, Hunan, China.
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13
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Lu C, Jin L, Zhou H, Yang J, Wan H. Chlorogenic acid inhibits macrophage PANoptosis induced by cefotaxime-resistant Escherichia coli. Arch Microbiol 2024; 206:67. [PMID: 38236396 DOI: 10.1007/s00203-023-03777-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/27/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024]
Abstract
Antibiotics are commonly used in clinical practice to treat bacterial infections. Due to the abuse of antibiotics, the emergence of drug-resistant strains, such as cefotaxime sodium-resistant Escherichia coli (CSR-EC), has aggravated the treatment of diseases caused by bacterial infections in the clinic. Therefore, discovering new drug candidates with unique mechanisms of action is imperative. Chlorogenic acid (CGA) is an active component of Yinhua Pinggan Granule, which has antioxidant and anti-inflammatory effects. We chose the CGA to explore its effects on PANoptosis in cultured macrophages infected with CSR-EC. In this study, we explored the protective impact of CGA on macrophage cell damage generated by CSR-EC infection and the potential molecular mechanistic consequences of post-infection therapy with CGA on the PANoptosis pathway. Our findings demonstrated that during CSR-EC-induced macrophage infection, CGA dramatically increased cell survival. CGA can inhibit pro-inflammatory cytokine expression of IL-1β, IL-18, TNF-α, and IL-6. CGA decreased ROS generation and increased Nrf-2 expression at the gene and protein levels to lessen the cell damage and death brought on by CSR-EC infection. Additionally, we discovered that the proteins Caspase-3, Caspase-7, Caspase-8, Caspase-1, GSDMD, NLRP-3, RIPK-3, and MLKL were all inhibited by CGA. In summary, our research suggests that CGA is a contender for reducing lesions brought on by CSR-EC infections and that it can work in concert with antibiotics to treat CSR-EC infections clinically. However, further research on its mechanism of action is still needed.
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Affiliation(s)
- Chunxiu Lu
- School of Life Sciences, Zhejiang Chinese Medical University, No. 548, Binwen Road, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Liang Jin
- School of Life Sciences, Zhejiang Chinese Medical University, No. 548, Binwen Road, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China
- Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Huifen Zhou
- School of Life Sciences, Zhejiang Chinese Medical University, No. 548, Binwen Road, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Jiehong Yang
- School of Life Sciences, Zhejiang Chinese Medical University, No. 548, Binwen Road, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China.
| | - Haitong Wan
- School of Life Sciences, Zhejiang Chinese Medical University, No. 548, Binwen Road, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China.
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14
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Lotsios NS, Keskinidou C, Dimopoulou I, Kotanidou A, Orfanos SE, Vassiliou AG. Aquaporin Expression and Regulation in Clinical and Experimental Sepsis. Int J Mol Sci 2023; 25:487. [PMID: 38203657 PMCID: PMC10778766 DOI: 10.3390/ijms25010487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/22/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024] Open
Abstract
Sepsis is an inflammatory disorder caused by the host's dysfunctional response to infection. Septic patients present diverse clinical characteristics, and in the recent years, it has been the main cause of death in intensive care units (ICU). Aquaporins, membrane proteins with a role in water transportation, have been reported to participate in numerous biological processes. Their role in sepsis progression has been studied extensively. This review aims to examine recent literature on aquaporin expression and regulation in clinical sepsis, as well as established experimental models of sepsis. We will present how sepsis affects aquaporin expression at the molecular and protein level. Moreover, we will delve into the importance of aquaporin regulation at transcriptional, post-transcriptional, translational, and post-translational levels in sepsis by presenting data on aquaporin regulation by non-coding RNAs and selected chemical molecules. Finally, we will focus on the importance of aquaporin single-nucleotide polymorphisms in the setting of sepsis.
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Affiliation(s)
| | | | | | | | | | - Alice G. Vassiliou
- First Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, 106 76 Athens, Greece; (N.S.L.); (C.K.); (I.D.); (A.K.); (S.E.O.)
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15
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Jin Y, Jeon H, Le Lam Nguyen T, Kim L, Heo KS. Human milk oligosaccharides 3'-sialyllactose and 6'-sialyllactose attenuate LPS-induced lung injury by inhibiting STAT1 and NF-κB signaling pathways. Arch Pharm Res 2023; 46:897-906. [PMID: 37940817 DOI: 10.1007/s12272-023-01470-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 11/01/2023] [Indexed: 11/10/2023]
Abstract
Acute lung injury (ALI) is the leading cause of respiratory diseases induced by uncontrolled inflammation and cell death. Lipopolysaccharide (LPS) is a major trigger of ALI in the progression through macrophage differentiation and the accelerated release of pro-inflammatory cytokines. The present study aimed to investigate the protective effects of human milk oligosaccharides, specifically 3'-sialyllactose (3'-SL) and 6'-sialyllactose (6'-SL), on LPS-induced ALI and elucidate their underlying signaling pathways. The inhibitory effects of 3'-SL and 6'-SL on inflammation were evaluated using LPS-treated RAW 264.7 macrophages. To establish the ALI model, mice were treated with 10 mg/kg LPS for 24 h. Histological changes in the lung tissues were assessed using hematoxylin and eosin staining and immunofluorescence. LPS causes thickening of the alveolar wall infiltration of immune cells in lung tissues and increased serum levels of TNF-α, IL-1β, and GM-CSF. However, these effects were significantly alleviated by 100 mg/kg of 3'-SL and 6'-SL. Consistent with the inhibitory effects of 3'-SL and 6'-SL on LPS-induced pro-inflammatory cytokine secretion in serum, 3'-SL and 6'-SL suppressed mRNA expression of TNF-α, IL-1β, MCP-1, iNOS, and COX2 in LPS-induced RAW 264.7 cells. Mechanistically, 3'-SL and 6'-SL abolished LPS-mediated phosphorylation of NF-κB and STAT1. Interestingly, fludarabine treatment, a STAT1 inhibitor, did not affect LPS-mediated NF-κB phosphorylation. In summary, 3'-SL and 6'-SL protect LPS-induced macrophage activation and ALI through the STAT1 and NF-κB signaling pathways.
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Affiliation(s)
- Yujin Jin
- College of Pharmacy and Institute of Drug Research and Development, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, South Korea
| | - Hyesu Jeon
- College of Pharmacy and Institute of Drug Research and Development, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, South Korea
| | - Thuy Le Lam Nguyen
- College of Pharmacy and Institute of Drug Research and Development, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, South Korea
| | - Lila Kim
- GeneChem Inc. A-201, 187 Techno 2-ro, Daejeon, 34025, South Korea
| | - Kyung-Sun Heo
- College of Pharmacy and Institute of Drug Research and Development, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, South Korea.
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16
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Yao J, Cheng M, Yang F. Calycosin Attenuates Lipopolysaccharide-Induced Acute Lung Injury in Mice through the miR-375-3p/ROCK2 Axis. J INVEST SURG 2023; 36:2211166. [PMID: 37400250 DOI: 10.1080/08941939.2023.2211166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 04/15/2023] [Accepted: 04/28/2023] [Indexed: 07/05/2023]
Abstract
Objective: Septic patients are especially vulnerable to acute lung injury (ALI). Calycosin (CAL) has various promising pharmacological activities. This paper aims to expound on the role of CAL in mice with sepsis-induced ALI and the associated mechanisms.Methods: Mouse models of sepsis-induced ALI were established using lipopolysaccharide (LPS). Pulmonary histopathological changes were observed by HE staining. Cell apoptosis was assessed by TUNEL staining. Pulmonary edema was evaluated by measuring wet/dry weight. Bronchoalveolar lavage fluid (BALF) was collected to count inflammatory cells. In vitro LPS models were established using MLE-12 cells. miR-375-3p expression was determined by RT-qPCR. Cell viability and apoptosis were assessed by MTT assay and flow cytometry. Levels of inflammatory cytokines were determined by ELISA. The target relationship between miR-375-3p and ROCK2 was analyzed by the dual-luciferase assay. ROCK2 protein level was determined by Western blot.Results: miR-375-3p was weakly-expressed in mice with sepsis-induced ALI, and CAL treatment elevated miR-375-3p expression. CAL treatment mitigated pulmonary tissue damage and edema, decreased apoptosis and inflammatory cells, downregulated levels of pro-inflammatory cytokines, and upregulated levels of anti-inflammatory cytokines in mice with sepsis-induced ALI. CAL treatment increased MLE-12 cell viability and decreased apoptosis and inflammation in MLE-12 cells. Inhibition of miR-375-3p partially abrogated CAL-mediated protective action on MLE-12 cells. miR-375-3p attenuated LPS-induced MLE-12 cell injury by targeting ROCK2.Conclusion: CAL upregulates miR-375-3p to target ROCK2, thus protecting against sepsis-induced ALI in mice.
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Affiliation(s)
- Jie Yao
- Department of Intensive Care Unit, The People's Hospital of Fujian Traditional Medical University, Fuzhou, Fujian, China
| | - Mingfeng Cheng
- Department of Intensive Care Unit, The People's Hospital of Fujian Traditional Medical University, Fuzhou, Fujian, China
| | - Fan Yang
- Department of Intensive Care Unit, The People's Hospital of Fujian Traditional Medical University, Fuzhou, Fujian, China
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Wang Y, Yang W, Liu L, Liu L, Chen J, Duan L, Li Y, Li S. Vitamin K2 (MK-7) attenuates LPS-induced acute lung injury via inhibiting inflammation, apoptosis, and ferroptosis. PLoS One 2023; 18:e0294763. [PMID: 38011192 PMCID: PMC10681318 DOI: 10.1371/journal.pone.0294763] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 11/09/2023] [Indexed: 11/29/2023] Open
Abstract
Acute lung injury (ALI) is a life-threatening disease that has received considerable critical attention in the field of intensive care. This study aimed to explore the role and mechanism of vitamin K2 (VK2) in ALI. Intraperitoneal injection of 7 mg/kg LPS was used to induce ALI in mice, and VK2 injection was intragastrically administered with the dose of 0.2 and 15 mg/kg. We found that VK2 improved the pulmonary pathology, reduced myeloperoxidase (MPO) activity and levels of TNF-α and IL-6, and boosted the level of IL-10 of mice with ALI. Moreover, VK2 played a significant part in apoptosis by downregulating and upregulating Caspase-3 and Bcl-2 expressions, respectively. As for further mechanism exploration, we found that VK2 inhibited P38 MAPK signaling. Our results also showed that VK2 inhibited ferroptosis, which manifested by reducing malondialdehyde (MDA) and iron levels, increasing glutathione (GSH) level, and upregulated and downregulated glutathione peroxidase 4 (GPX4) and heme oxygenase-1 (HO-1) expressions, respectively. In addition, VK2 also inhibited elastin degradation by reducing levels of uncarboxylated matrix Gla protein (uc-MGP) and desmosine (DES). Overall, VK2 robustly alleviated ALI by inhibiting LPS-induced inflammation, apoptosis, ferroptosis, and elastin degradation, making it a potential novel therapeutic candidate for ALI.
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Affiliation(s)
- Yulian Wang
- College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Weidong Yang
- College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Lulu Liu
- College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Lihong Liu
- College of Basic Medical Science, Dalian Medical University, Dalian, China
| | | | - Lili Duan
- Sungen Bioscience Co., Ltd., Guangdong, China
| | - Yuyuan Li
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, China
| | - Shuzhuang Li
- College of Basic Medical Science, Dalian Medical University, Dalian, China
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18
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Wang L, Jiang S, Li X, Lin T, Qin T. Astringin protects LPS-induced toxicity by suppressing oxidative stress and inflammation via suppression of PI3K/AKT/NF-κB pathway for pediatric acute lung injury. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:2369-2377. [PMID: 37193771 DOI: 10.1007/s00210-023-02439-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 02/20/2023] [Indexed: 05/18/2023]
Abstract
Acute lung injury (ALI) is a major pathophysiological problem defined by severe inflammation and acute disease with substantial morbidity and death. It is known that lipopolysaccharide (LPS) induces ALI by causing oxidative stress and inflammation. The goal of this study was to investigate the protective effect of astringin on LPS-induced ALI and probable pathways. Astringin is a stilbenoid, the 3-β-D-glucoside of piceatannol, mainly found in the bark of Picea sitchensis. The findings showed that astringin prevented LPS-induced cellular damage by reducing the generation of oxidative stress in LPS-stimulated A549 lung epithelial cells. Furthermore, astringin extensively decreased the production of inflammatory factors such as TNF-α, IL-1β, and IL-6. In addition, the western blot results revealed that the ability of astringin to reduce oxidative stress and the generation of inflammatory cytokines by inhibiting the ROS-mediated PI3K/AKT/NF-κB pathway could be the reason for its protective effect against LPS-induced ALI. Overall, the results suggest that astringin could be a possible inhibitor of ALI triggered by LPS for pediatric lung injury.
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Affiliation(s)
- Ling Wang
- Department of Neonatology, The First People's Hospital of Wenling, No.333, Chuanan South Road, Chengxi Street, Wenling, 317500, Zhejiang, China
| | - Shanshan Jiang
- Department of Neonatology, The First People's Hospital of Wenling, No.333, Chuanan South Road, Chengxi Street, Wenling, 317500, Zhejiang, China
| | - Xiaoxiao Li
- Department of Neonatology, The First People's Hospital of Wenling, No.333, Chuanan South Road, Chengxi Street, Wenling, 317500, Zhejiang, China
| | - Tingting Lin
- Department of Neonatology, The First People's Hospital of Wenling, No.333, Chuanan South Road, Chengxi Street, Wenling, 317500, Zhejiang, China.
| | - Tao Qin
- Department of Neonatology, The First People's Hospital of Wenling, No.333, Chuanan South Road, Chengxi Street, Wenling, 317500, Zhejiang, China.
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Zhang X, Zhou J, Holbein BE, Lehmann C. Iron Chelation as a Potential Therapeutic Approach in Acute Lung Injury. Life (Basel) 2023; 13:1659. [PMID: 37629516 PMCID: PMC10455621 DOI: 10.3390/life13081659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/28/2023] [Accepted: 07/29/2023] [Indexed: 08/27/2023] Open
Abstract
Acute lung injury (ALI) has been challenging health care systems since before the COVID-19 pandemic due to its morbidity, mortality, and length of hospital stay. In view of the complex pathogenesis of ALI, effective strategies for its prevention and treatment are still lacking. A growing body of evidence suggests that iron dysregulation is a common characteristic in many subtypes of ALI. On the one hand, iron is needed to produce reactive oxygen species (ROS) as part of the immune response to an infection; on the other hand, iron can accelerate the occurrence of ferroptosis and extend host cell damage. Iron chelation represents a novel therapeutic strategy for alleviating lung injury and improving the survival of patients with ALI. This article reviews the current knowledge of iron homeostasis, the role of iron in ALI development, and potential therapeutic targets.
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Affiliation(s)
- Xiyang Zhang
- Department of Anesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, NS B3H 1X5, Canada; (X.Z.); (J.Z.)
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Juan Zhou
- Department of Anesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, NS B3H 1X5, Canada; (X.Z.); (J.Z.)
| | - Bruce E. Holbein
- Department of Microbiology & Immunology, Dalhousie University, Halifax, NS B3H 1X5, Canada;
| | - Christian Lehmann
- Department of Anesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, NS B3H 1X5, Canada; (X.Z.); (J.Z.)
- Department of Microbiology & Immunology, Dalhousie University, Halifax, NS B3H 1X5, Canada;
- Department of Physiology & Biophysics, Dalhousie University, Halifax, NS B3H 1X5, Canada
- Department of Pharmacology, Dalhousie University, Halifax, NS B3H 4R2, Canada
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20
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Xia W, Pan Z, Zhang H, Zhou Q, Liu Y. ERRα protects against sepsis-induced acute lung injury in rats. Mol Med 2023; 29:76. [PMID: 37340376 DOI: 10.1186/s10020-023-00670-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/26/2023] [Indexed: 06/22/2023] Open
Abstract
BACKGROUND Sepsis-induced acute lung injury (ALI) is associated with poor survival rates. The identification of potential therapeutic targets for preventing sepsis-induced ALI has clinical importance. This study aims to investigate the role of estrogen-related receptor alpha (ERRα) in sepsis-induced ALI. METHODS Lipopolysaccharide (LPS) was used to simulate sepsis-induced ALI model in rat pulmonary microvascular endothelial cells (PMVECs). The effects of ERRα overexpression and knockdown on LPS-induced endothelial permeability, apoptosis and autophagy were determined by horseradish peroxidase permeability assay, TdT-mediated dUTP Nick End Labeling (TUNEL) assay, flow cytometry, immunofluorescence staining, RT-PCR and Western Blotting. The rat model with sepsis-induced ALI was established by cecal ligation and puncture in anesthetized rats to verify the results of in vitro experiments. Animals were randomly assigned to receive intraperitoneal injection of vehicle or ERRα agonist. Lung vascular permeability, pathological injury, apoptosis and autophagy were examined. RESULTS Overexpression of ERRα ameliorated LPS-induced endothelial hyperpermeability, degradation of adherens junctional molecules, upregulation of bax, cleaved caspase 3 and cleaved caspase 9 levels, downregulation of anti-apoptotic protein Bcl-2 level, and promoted the formation of autophagic flux, while the knockdown of ERRα exacerbated LPS-induced apoptosis and inhibited the activation of autophagy. Administration of ERRα agonist alleviated the pathological damage of lung tissue, increased the levels of tight junction proteins and adherens junction proteins, and decreased the expression of apoptosis-related proteins. Promoting the expression of ERRα significantly enhanced the process of autophagy and reduced CLP-induced ALI. Mechanistically, ERRα is essential to regulate the balance between autophagy and apoptosis to maintain the adherens junctional integrity. CONCLUSION ERRα protects against sepsis-induced ALI through ERRα-mediated apoptosis and autophagy. Activation of ERRα provides a new therapeutic opportunity to prevent sepsis-induced ALI.
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Affiliation(s)
- Wenfang Xia
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zhou Pan
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Huanming Zhang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Qingshan Zhou
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yu Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
- Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, China.
- Hubei Key Laboratory of Cardiology, Wuhan, 430060, China.
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21
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Li Y, Zhang C, Zhao Z. CircSLCO3A1 depletion ameliorates lipopolysaccharide-induced inflammation and apoptosis of human pulmonary alveolar epithelial cells through the miR-424-5p/HMGB3 pathway. Mol Cell Toxicol 2023:1-12. [PMID: 37359246 PMCID: PMC10211294 DOI: 10.1007/s13273-023-00341-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2023] [Indexed: 06/28/2023]
Abstract
Background Recent studies have shown the pathogenesis of acute lung injury (ALI) involves circular RNA (circRNA). However, there are no data on the role of circSLCO3A1 in ALI and the underlying mechanism. Objective ALI-like cell injury was induced by stimulating human pulmonary alveolar epithelial cells (HPAEpiCs) using lipopolysaccharide (LPS). The expression of circSLCO3A1, miR-424-5p and high mobility group box 3 (HMGB3) was detected by quantitative real-time polymerase chain reaction. Cell viability and cell apoptosis were assessed by cell counting kit-8 (CCK-8) assay and flow cytometry analysis, respectively. Enzyme-linked immunosorbent assay was performed to determine the production of interleukin-1β (IL-1β), IL-6, tumor necrosis factor-α (TNF-α) and monocyte chemotactic protein 1 (MCP-1). Caspase-3 activity was detected by caspase-3 activity assay. Protein expression of inducible NOS (iNOS), cyclooxygenase-2 (COX2), p-p65 and p65 was analyzed by Western blot. The interactions among circSLCO3A1, miR-424-5p and HMGB3 were identified by dual-luciferase reporter assay, RNA immunoprecipitation assay and RNA pull-down assay. Results CircSLCO3A1 and HMGB3 expression were significantly increased, while miR-424-5p was decreased in LPS-treated HPAEpiCs and the serum of septic ALI patients in comparison with controls. CircSLCO3A1 knockdown assuaged LPS-induced HPAEpiC inflammation and apoptosis. Besides, circSLCO3A1 targeted miR-424-5p and regulated LPS-triggered HPAEpiC inflammation and apoptosis by binding to miR-424-5p. Under the treatment of LPS, miR-424-5p mediated HPAEpiC disorders by targeting HMGB3. Importantly, circSLCO3A1 modulated HMGB3 production by interacting with miR-424-5p. Conclusion CircSLCO3A1 absence assuaged LPS-induced HPAEpiC inflammation and apoptosis through the miR-424-5p/HMGB3 axis. Highlights CircSLCO3A1 expression was upregulated in LPS-induced HPAEpiCs and sepsis-induced ALI patients.CircSLCO3A1 depletion protected against LPS-induced HPAEpiC disorders.CircSLCO3A1 bound to miR-424-5p in HPAEpiCs.MiR-424-5p targeted HMGB3 in HPAEpiCs.CircSLCO3A1 regulated HMGB3 expression through miR-424-5p. Supplementary Information The online version contains supplementary material available at 10.1007/s13273-023-00341-6.
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Affiliation(s)
- Yan Li
- Department of Emergency Medicine, China-Japan Union Hospital of Jilin University, Changchun, Jilin China
| | - Chunmei Zhang
- Department of Critical Medicine, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, 130033 Jilin China
| | - Zhongyan Zhao
- Department of Critical Medicine, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, 130033 Jilin China
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22
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Frye CJ, Cunningham CL, Mihailescu MR. Host microRNA interactions with the SARS-CoV-2 viral genome 3'-untranslated region. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.18.541401. [PMID: 37292986 PMCID: PMC10245713 DOI: 10.1101/2023.05.18.541401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The 2019 pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has marked the spread of a novel human coronavirus. While the viral life cycle is well understood, most of the interactions at the virus-host interface remain elusive. Furthermore, the molecular mechanisms behind disease severity and immune evasion are still largely unknown. Conserved elements of the viral genome such as secondary structures within the 5'- and 3'-untranslated regions (UTRs) serve as attractive targets of interest and could prove crucial in furthering our understanding of virus-host interactions. It has been proposed that microRNA (miR) interactions with viral components could be used by both the virus and host for their own benefit. Analysis of the SARS-CoV-2 viral genome 3'-UTR has revealed the potential for host cellular miR binding sites, providing sites for specific interactions with the virus. In this study, we demonstrate that the SARS-CoV-2 genome 3'-UTR binds the host cellular miRNAs miR-760-3p, miR-34a-5p, and miR-34b-5p, which have been shown to influence translation of interleukin-6 (IL-6), the IL-6 receptor (IL-6R), as well as progranulin (PGRN), respectively, proteins that have roles in the host immune response and inflammatory pathways. Furthermore, recent work suggests the potential of miR-34a-5p and miR-34b-5p to target and inhibit translation of viral proteins. Native gel electrophoresis and steady-state fluorescence spectroscopy were utilized to characterize the binding of these miRs to their predicted sites within the SARS-CoV-2 genome 3'-UTR. Additionally, we investigated 2'-fluoro-D-arabinonucleic acid (FANA) analogs of these miRNAs as competitive binding inhibitors for these miR binding interactions. The mechanisms detailed in this study have the potential to drive the development of antiviral treatments for SARS-CoV-2 infection, and provide a potential molecular basis for cytokine release syndrome and immune evasion which could implicate the host-virus interface.
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Affiliation(s)
- Caleb J Frye
- Department of Chemistry & Biochemistry, Duquesne University, Pittsburgh, PA 15282, USA
| | - Caylee L Cunningham
- Department of Chemistry & Biochemistry, Duquesne University, Pittsburgh, PA 15282, USA
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23
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Pan F, Bu L, Wu K, Wang A, Xu X. PKD2/polycystin-2 inhibits LPS-induced acute lung injury in vitro and in vivo by activating autophagy. BMC Pulm Med 2023; 23:171. [PMID: 37198573 DOI: 10.1186/s12890-023-02449-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 04/21/2023] [Indexed: 05/19/2023] Open
Abstract
Polycystin-2 (PC2), which is a transmembrane protein encoded by the PKD2 gene, plays an important role in kidney disease, but its role in lipopolysaccharide (LPS)-induced acute lung injury (ALI) is unclear. We overexpressed PKD2 in lung epithelial cells in vitro and in vivo and examined the role of PKD2 in the inflammatory response induced by LPS in vitro and in vivo. Overexpression of PKD2 significantly decreased production of the inflammatory factors TNF-α, IL-1β, and IL-6 in LPS-treated lung epithelial cells. Moreover, pretreatment with 3-methyladenine (3-MA), an autophagy inhibitor, reversed the inhibitory effect of PKD2 overexpression on the secretion of inflammatory factors in LPS-treated lung epithelial cells. We further demonstrated that overexpression of PKD2 could inhibit LPS-induced downregulation of the LC3BII protein levels and upregulation of SQSTM1/P62 protein levels in lung epithelial cells. Moreover, we found that LPS-induced changes in the lung wet/dry (W/D) weight ratio and levels of the inflammatory cytokines TNF-α, IL-6 and IL-1β in the lung tissue were significantly decreased in mice whose alveolar epithelial cells overexpressed PKD2. However, the protective effects of PKD2 overexpression against LPS-induced ALI were reversed by 3-MA pretreatment. Our study suggests that overexpression of PKD2 in the epithelium may alleviate LPS-induced ALI by activating autophagy.
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Affiliation(s)
- Fan Pan
- Department of Anesthesiology, Affiliated Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China
| | - Lina Bu
- Department of Anesthesiology, Affiliated Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China
| | - Kaixuan Wu
- Department of Anesthesiology, Affiliated Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China
| | - Aizhong Wang
- Department of Anesthesiology, Affiliated Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China.
| | - Xiaotao Xu
- Department of Anesthesiology, Affiliated Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China.
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Yang X, Qin X, Wang K, Kebreab E, Lyu L. MNQ derivative D 21 protects against LPS-induced inflammatory damage in bovine ovarian follicular GCs in vitro via the steroid biosynthesis signaling pathway. Theriogenology 2023; 206:149-160. [PMID: 37210939 DOI: 10.1016/j.theriogenology.2023.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/11/2023] [Accepted: 05/11/2023] [Indexed: 05/23/2023]
Abstract
Bacterial infections of the reproductive system of dairy cows lead to inflammation, and lipopolysaccharide (LPS) of the cell wall of Gram-negative bacteria is the main pathogenic component of inflammation. LPS inhibits follicular growth and development and alters the expression of follicular granulosa cells (GCs) genes in the ovary, leading to their functional disorders. Naphthoquinones have anti-inflammatory effects. In this experiment, 2-methoxy-1,4-naphthoquinone (MNQ), an extract of Impatiens balsamina L, and its derivative D21 were used to eliminate the inflammatory response of GCs exposed to LPS in vitro and to restore functional disorders in GCs. The anti-inflammatory effects of the two compounds were compared and their mechanism of action was investigated. The cytotoxicity of MNQ and its derivative D21 on follicular GCs was determined by MTT method. The relative expression of inflammatory factors and steroid synthesis-related genes were determined by qRT-PCR. The protective effects of MNQ and D21 on cellular inflammatory damage were observed by TEM. ELISA were performed to detect the levels of estradiol (E2) and progesterone (P4) in the culture supernatant. The expression of differential genes was analyzed by RNA-seq, and GO and KEGG enrichment analysis of differential genes were performed to investigate the mechanism of anti-inflammatory effect of D21. The results showed that the maximum no-cytotoxic concentrations of MNQ and D21 acting on GCs for 12 h were 4 μM and 64 μM, respectively. LPS concentration of 10 μg/mL had little effect on the survival of follicular GCs, but the relative expressions of IL-6, IL-1β and TNF-α were significantly higher (P < 0.05). The results of qRT-PCR, ELISA and TEM observations showed that the anti-inflammatory effect of D21 was stronger than that of MNQ. RNA-seq analysis revealed a total of 341 differential genes between the LPS vs CK group (Control group) and the D21+L vs LPS group, which were mainly enriched in signaling pathways such as steroid biosynthesis. Nine genes in this signaling pathway were analyzed, and the RNA-seq and qRT-PCR results were found to be basically consistent. In this study, we confirmed that derivative D21 has stronger in vitro anti-inflammatory effects and better efficacy in protecting bovine follicular GCs from inflammatory damage than MNQ and acts through the steroid biosynthesis signaling pathway.
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Affiliation(s)
- Xiaofeng Yang
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China; Department of Biology, Xinzhou Normal University, Xinzhou, Shanxi, 034000, China
| | - Xiaowei Qin
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Kai Wang
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Ermias Kebreab
- Department of Animal Science, University of California Davis, CA, 95616, USA
| | - Lihua Lyu
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China.
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Wang Y, Deng F, Zhong X, Du Y, Fan X, Su H, Pan T. Dulaglutide provides protection against sepsis-induced lung injury in mice by inhibiting inflammation and apoptosis. Eur J Pharmacol 2023; 949:175730. [PMID: 37062504 DOI: 10.1016/j.ejphar.2023.175730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 04/04/2023] [Accepted: 04/14/2023] [Indexed: 04/18/2023]
Abstract
Sepsis is a dangerous condition with a high mortality rate. In addition to promoting insulin secretion in a glucose-dependent manner, glucagon-like peptide-1 (GLP-1) also exhibits anti-inflammatory properties. Dulaglutide is a glucagon-like peptide-1 receptor agonist (GLP-1 RA). In this study, we investigated the effects and mechanism of action of dulaglutide (Dul) in lipopolysaccharide (LPS) induced lung injury in mice with sepsis. In mice with LPS (15 mg/kg, ip, qd)-induced acute lung injury, the administration of dulaglutide (0.6 mg/kg, ip, qd) improved weight loss, reduced lung injury, reversed the increase in IL-1β, TNF-α, IL-6, CXCL1, CCL2 and CXCL2 expression in the lung, and reduced the infiltration of neutrophils and macrophages in the lung tissues. The decline in caspase-3, cleaved caspase-3, caspase-8, and Bcl-2/Bax expression and the increase in the number of TUNEL positive cells in the lung were reversed, suggesting that GLP-1RA could play a protective role in the lung by inhibiting inflammation and apoptosis. In addition, GLP-1RA could reduce the expression of P-STAT3 and NLRP3, suggesting that P-STAT3 and NLRP3 may be potential targets against lung injury in sepsis. Collectively, our data demonstrated that GLP-1RA exerts a protective effect against sepsis-induced lung injury through mechanisms related to the inhibition of inflammation, apoptosis, and STAT3 signaling.
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Affiliation(s)
- Yue Wang
- Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei, 230061, Anhui Province, China; Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei 230061, Hefei, 230061, Anhui Province, China
| | - Fengyi Deng
- Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei, 230061, Anhui Province, China; Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei 230061, Hefei, 230061, Anhui Province, China
| | - Xing Zhong
- Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei, 230061, Anhui Province, China; Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei 230061, Hefei, 230061, Anhui Province, China
| | - Yijun Du
- Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei, 230061, Anhui Province, China; Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei 230061, Hefei, 230061, Anhui Province, China
| | - Xingyu Fan
- Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei, 230061, Anhui Province, China; Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei 230061, Hefei, 230061, Anhui Province, China
| | - Hong Su
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei, 230031, Anhui Province, China
| | - Tianrong Pan
- Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei, 230061, Anhui Province, China; Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Jingkai District, Hefei 230061, Hefei, 230061, Anhui Province, China.
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Zhou Y, Jin T, Gao M, Luo Z, Mutahir S, Shi C, Xie T, Lin L, Xu J, Liao Y, Chen M, Deng H, Zheng M, Shan J. Aqueous extract of Platycodon grandiflorus attenuates lipopolysaccharide-induced apoptosis and inflammatory cell infiltration in mouse lungs by inhibiting PI3K/Akt signaling. Chin Med 2023; 18:36. [PMID: 37016413 PMCID: PMC10071731 DOI: 10.1186/s13020-023-00721-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/06/2023] [Indexed: 04/06/2023] Open
Abstract
BACKGROUND Acute lung injury (ALI), an acute inflammatory lung disease, can cause a rapid inflammatory response in clinic, which endangers the patient's life. The components of platycodon grandiflorum, such as platycodins have a wide range of pharmacological activities such as expectorant, anti-apoptotic, anti-inflammatory, anti-tumor and anti-oxidant properties, and can be used for improving human immunity. Previous studies have shown that aqueous extract of platycodon grandiflorum (PAE) has a certain protective effect on ALI, but the main pharmacodynamic components and the mechanism of action are not clear. METHODS The anti-inflammatory properties of PAE were studied using the lipopolysaccharide (LPS)-induced ALI animal model. Hematoxylin and eosin stains were used to assess the degree of acute lung damage. Changes in RNA levels of pro-inflammatory cytokines in the lungs were measured using quantitative RT-qPCR. The potential molecular mechanism of PAE preventing ALI was predicted by lipidomics and network pharmacology. To examine the anti-apoptotic effects of PAE, TdT-mediated dUTP nick-end labelling (TUNEL) was employed to determine apoptosis-related variables. The amounts of critical pathway proteins and apoptosis-related proteins were measured using Western blotting. RESULTS Twenty-six chemical components from the PAE were identified, and their related pathways were obtained by the network pharmacology. Combined with the analysis of network pharmacology and literature, it was found that the phosphatidylinositol 3 kinase (PI3K)/protein kinase B (AKT) signaling pathway is related to ALI. The results of lipidomics show that PAE alleviates ALI via regulating lung lipids especially phosphatidylinositol (PI). Finally, the methods of molecular biology were used to verify the mechanism of PAE. It can be found that PAE attenuates the inflammatory response to ALI by inhibiting apoptosis through PI3K/Akt signaling pathway. CONCLUSION The study revealed that the PAE attenuates lipopolysaccharide-induced apoptosis and inflammatory cell infiltration in mouse lungs by inhibiting PI3K/Akt signaling. Furthermore, our findings provide a novel strategy for the application of PAE as a potential agent for preventing patients with ALI.
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Affiliation(s)
- Yang Zhou
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Wuhu Fanchang District People's Hospital, Wuhu, 241200, China
| | - Tianzi Jin
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Mingtong Gao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zichen Luo
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Sadaf Mutahir
- Department of Chemistry, University of Sialkot, Sialkot, 51300, Pakistan
| | - Chen Shi
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Tong Xie
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Lili Lin
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jianya Xu
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yingzhao Liao
- Department of Pediatrics, Shenzhen Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Shenzhen, 518033, China
| | - Ming Chen
- Jiangsu Suzhong Pharmaceutical Research Institute Co. Ltd, Nanjing, 210031, China
| | - Haishan Deng
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Min Zheng
- Department of Pediatrics, Shenzhen Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Shenzhen, 518033, China.
| | - Jinjun Shan
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Preparation of inhalable quercetin-β-cyclodextrin inclusion complexes using the supercritical antisolvent process for the prevention of smoke inhalation-induced acute lung injury. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2023.102414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Li B, Wang Z, Yuan J, Liang D, Cheng Y, Wang Z. Knockdown of SHP2 attenuated LPS-induced ferroptosis via downregulating ACSL4 expression in acute lung injury. Allergol Immunopathol (Madr) 2023; 51:143-152. [PMID: 37169572 DOI: 10.15586/aei.v51i3.856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 03/21/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND Acute lung injury (ALI) is a complex disease with a high mortality. Src homology 2 (SH2)-containing protein tyrosine phosphatase 2 (SHP2) is a protein tyrosine phosphatase that participates in pathogenesis of multiple diseases. Nevertheless, the role of SHP2 in ALI remains unknown. METHODS The in vivo and in vitro lipopolysaccharide (LPS)-induced ALI models were successfully established. The histopathological changes were evaluated by hematoxylin and eosin staining. The vascular permeability of lungs was assessed by Evans blue assay. The expression of ACSL4 and SHP2 was detected by western blot and qRT-PCR assay. The lactate dehydrogenase (LDH) activity, malondialdehyde (MDA), iron, and glutathione (GSH) levels were measured by commercial kits. RESULTS The SHP2 was upregulated in LPS-induced ALI mice and LPS-stimulated MLE-12 cells. In loss-of function experiment, the knockdown of SHP2 attenuated LPS-induced lung injury, microvessels damage, pulmonary edema, and increase of lung vascular permeability in vivo. Mechanically, shSHP2-rescued LPS induced increase in LDH activity, MDA, and iron levels, and decrease in GSH levels, as well as the accumulation of reactive oxygen species in vivo and in vitro, leading to an alleviation of LPS-induced ferroptosis. Notably, shSHP2 reduced the expression of Acyl-CoA synthetase long-chain 4 (ACSL4). In the rescued experiments, overexpression of ACSL4 abolished the shSHP2-induced reduction of LDH activity, MDA, and iron levels, and increase in GSH levels, thereby aggravating the LPS-induced ferroptosis. CONCLUSION These findings concluded that the knockdown of SHP2 attenuated LPS-induced ferroptosis via downregulation of ACSL4 expression in ALI, providing a novel sight for ALI treatment.
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Affiliation(s)
- Bin Li
- Department of Infectious Diseases, Linfen People's Hospital, Linfen, Shanxi, China
| | - Zhan Wang
- Research Division, National Health Commission of the People's Government of Linfen City, Linfen, Shanxi, China
| | - Jiayang Yuan
- Department of Infectious Diseases, Linfen People's Hospital, Linfen, Shanxi, China
| | - Dachuan Liang
- Department of Infectious Diseases, Linfen People's Hospital, Linfen, Shanxi, China
| | - Yanrong Cheng
- Intensive Care Unit, Linfen People's Hospital, Linfen, Shanxi, China
| | - Zheng Wang
- Intensive Care Unit, Linfen People's Hospital, Linfen, Shanxi, China;
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Zan CF, Wei WF, Li JA, Shi MP, Cong L, Gu MY, Chen YH, Wang SY, Li ZH. Circulating exosomal lncRNA contributes to the pathogenesis of spinal cord injury in rats. Neural Regen Res 2023; 18:889-894. [DOI: 10.4103/1673-5374.353504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Li N, Li Y, Wu B, Sun R, Zhao M, Hu Z. CIRCKLHL2 KNOCKDOWN ALLEVIATES SEPSIS-INDUCED ACUTE LUNG INJURY BY REGULATING MIR-29B-3P MEDIATED ROCK1 EXPRESSION DOWN-REGULATION. Shock 2023; 59:99-107. [PMID: 36476974 DOI: 10.1097/shk.0000000000002034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
ABSTRACT Background: Acute lung injury (ALI) induced by sepsis is distinguished by an inflammatory progression. Herein, we investigated the action of circular RNA kelch like family member 2 (circKlhl2) in sepsis-induced ALI. Methods: The animal or cell model of sepsis ALI was established by LPS stimulation. The contents of circKlhl2, microRNA-29b-3p (miR-29b-3p), rho-associated coiled-coil containing protein kinase 1 (ROCK1), CyclinD1, B-cell lymphoma-2 (Bcl-2), and cleaved-caspase 3 (C-caspase-3) were detected by quantitative real-time polymerase chain reaction and western blot, respectively. Cell viability was assessed by cell counting kit 8 assay. Cell cycle and apoptosis were evaluated by flow cytometry. The abundances of proinflammatory cytokines were detected by enzyme-linked immunosorbent assay. Besides, the targeted relationship between miR-29b-3p and circKlhl2 or ROCK1 was verified by dual-luciferase reporter assay, RNA immunoprecipitation assay and RNA pull-down assay. Results: Loss of circKlhl2 mitigated lung injury and proinflammatory cytokine expression in sepsis-ALI mice model and alleviated LPS-induced apoptosis and inflammatory response in microvascular endothelial cell (MPVECs) in vitro . The abundances of circKlhl2 and ROCK1 were boosted, while the miR-29b-3p level was diminished in the animal or cell model of sepsis-ALI. MiR-29b-3p inhibition abrogated circKlhl2 knockdown-mediated effects on MPVECs injury. Moreover, miR-29b-3p overexpression promoted cell proliferation and inhibited apoptosis and inflammation in LPS-treated MPVECs, while ROCK1 enhancement reversed these effects. Conclusion: CircKlhl2 expedited the sepsis-induced ALI by adjusting miR-29b-3p/ROCK1 axis.
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Affiliation(s)
| | - Yuqiang Li
- Clinical Biological Sample Center, The First Affiliated Hospital Of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
| | - Bin Wu
- Clinical Biological Sample Center, The First Affiliated Hospital Of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
| | - Rongli Sun
- Clinical Biological Sample Center, The First Affiliated Hospital Of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
| | - Mingzhou Zhao
- Clinical Biological Sample Center, The First Affiliated Hospital Of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
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Anti-inflammatory potential of turmeric, amla, and black pepper mixture against sepsis-induced acute lung injury in rats. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2023; 60:252-261. [PMID: 36349282 PMCID: PMC9633023 DOI: 10.1007/s13197-022-05610-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Revised: 09/01/2022] [Accepted: 10/15/2022] [Indexed: 11/06/2022]
Abstract
Acute lung injury (ALI), is a severe inflammatory lung disease. We tested the prophylactic effect of a functional food mix comprising three anti-inflammatory plant products: turmeric, amla, and black pepper (TAB) against lipopolysaccharide (LPS)-induced ALI in rats. Two-month-old male Wistar rats were randomly divided into three groups: control (C), LPS (5 mg/kg), and LPS with TAB (TAB). After 6 h of LPS injection, the rats were sacrificed by cervical decapitation to collect the lung tissue. Results showed that TAB partially ameliorated LPS-induced increase in circulating inflammatory cytokines (TNFα and IL6) and significantly prevented lung histopathological changes. TAB also suppressed LPS-activated ER stress markers (GRP78, pIRE1, and CHOP) and apoptotic markers (caspase-3 and - 12) in the lung. The anti-inflammatory effects of the TAB support its potential use as an adjuvant to mitigate ALI. Importantly, TAB's ingredients have been used for centuries as part of the diet with limited or no toxic effects.
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Bai X, Zheng L, Xu Y, Liang Y, Li D. Role of microRNA-34b-5p in cancer and injury: how does it work? Cancer Cell Int 2022; 22:381. [PMID: 36457043 PMCID: PMC9713203 DOI: 10.1186/s12935-022-02797-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022] Open
Abstract
MicroRNAs (miRNAs or miRs) are a class of noncoding single-stranded RNAs that can regulate gene expression by binding to the untranslated sequences at the 3 ' end of messenger RNAs. The microRNA-34 family is dysregulated in various human diseases. It is considered as a tumor-suppressive microRNA because of its synergistic effect with the well-known tumor suppressor p53. As a member of the miRNA-34 family, miR-34b-5p serves as a powerful regulator of a suite of cellular activities, including cell growth, multiplication, development, differentiation, and apoptosis. It promotes or represses disease occurrence and progression by participating in some important signaling pathways. This review aimed to provide an overview and update on the differential expression and function of miR-34b-5p in pathophysiologic processes, especially cancer and injury. Additionally, miR-34b-5p-mediated clinical trials have indicated promising consequences for the therapies of carcinomatosis and injury. With the application of the first tumor-targeted microRNA drug based on miR-34a mimics, it can be inferred that miR-34b-5p may become a crucial factor in the therapy of various diseases. However, further studies on miR-34b-5p should shed light on its involvement in disease pathogenesis and treatment options.
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Affiliation(s)
- Xuechun Bai
- grid.452829.00000000417660726The Second Hospital of Jilin University, Changchun, Jilin China
| | - Lianwen Zheng
- grid.452829.00000000417660726The Second Hospital of Jilin University, Changchun, Jilin China
| | - Ying Xu
- grid.452829.00000000417660726The Second Hospital of Jilin University, Changchun, Jilin China
| | - Yan Liang
- grid.452829.00000000417660726The Second Hospital of Jilin University, Changchun, Jilin China
| | - Dandan Li
- grid.452829.00000000417660726The Second Hospital of Jilin University, Changchun, Jilin China
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Cai J, Wang YL, Sheng XD, Zhang L, Lv X. Shufeng Jiedu capsule inhibits inflammation and apoptosis by activating A2AAR and inhibiting NF-κB to alleviate LPS-induced ALI. JOURNAL OF ETHNOPHARMACOLOGY 2022; 298:115661. [PMID: 36002086 PMCID: PMC9392900 DOI: 10.1016/j.jep.2022.115661] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/31/2022] [Accepted: 08/17/2022] [Indexed: 05/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shufeng Jiedu capsule (SFJDC) is a pure form of traditional Chinese medicine (TCM) that contains eight medicinal plants. Known for its anti-inflammatory and antipyretic effects, it is mostly used to treat upper respiratory tract infections and other infectious diseases, such as colds, pharyngitis, laryngitis, and tonsillitis. Both acute lung injury (ALI) and COVID-19 are closely related to lung damage, primarily manifesting as lung inflammation and epithelial cell damage. However, whether SFJDC can improve ALI and by what mechanism remain unclear. The purpose of this study was to explore whether SFJDC could be used as a prophylactic treatment for COVID-19 by improving acute lung injury. AIM OF THE STUDY The purpose of this study was to determine whether SFJDC could protect against ALI caused by lipopolysaccharide (LPS), and we wanted to determine how SFJDC reduces inflammation and apoptosis pharmacologically and molecularly. MATERIALS AND METHODS Preadministering SFJDC at 0.1 g/kg, 0.3 g/kg, or 0.5 g/kg for one week was followed by 5 mg/kg LPS to induce ALI in mice. Observations included the study of lung histomorphology, tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) secretion, as well as the ratio of lung wet/dry weights. In addition, RAW264.7 cells were treated for 24 h with 1 μg/mL LPS after being pretreated for 1 h with 0.5 mg/mL SFJDC. In the samples, we detected TNF-α, IL-1β, and IL-6. Cell apoptosis was detected by stimulating A549 cells for 24 h with RAW264.7 supernatant. Both in vitro and in vivo, the levels of A2A adenosine receptor (A2AAR), PKA, IκB, p-IκB, NF-κB P65 (P65), p-NF-κB P65 (p-P65), cleaved caspases-3 (Cc3), Bcl-2 associated X protein (Bax), and B-cell lymphoma-2 (Bcl-2) proteins were determined using Western blot analysis. RESULTS Lung tissue morphology was improved as SFJDC decreased cytokine secretion, the ratio of lung wet/dry weights, and lung tissue secretion of proinflammatory cytokines. The expression of A2AAR was increased by SFJDC, and the phosphorylation of NF-κB was inhibited. TUNEL staining and flow cytometry showed that SFJDC inhibited apoptosis by reducing the expression of Cc3 and the ratio of Bax/Bcl-2. CONCLUSIONS According to the results of this study, SFJDC can reduce inflammation and inhibit apoptosis. A2AAR activation and regulation of NF-κB expression are thought to make SFJDC anti-inflammatory and anti-apoptotic. A wide range of active ingredients may result in an anti-inflammatory and antipyretic effect with SFJDC.
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Affiliation(s)
- Junnan Cai
- Institute of Liver Disease, Anhui Medical University, Hefei, Anhui, China; Center of Traditional Chinese Medicine Formula Granule, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Anti-inflammatory and Immunological Drugs, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Yu-Lian Wang
- Institute of Liver Disease, Anhui Medical University, Hefei, Anhui, China; Center of Traditional Chinese Medicine Formula Granule, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Anti-inflammatory and Immunological Drugs, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Xiao-Dong Sheng
- Institute of Liver Disease, Anhui Medical University, Hefei, Anhui, China; Center of Traditional Chinese Medicine Formula Granule, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Anti-inflammatory and Immunological Drugs, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Lei Zhang
- Institute of Liver Disease, Anhui Medical University, Hefei, Anhui, China; Center of Traditional Chinese Medicine Formula Granule, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Anti-inflammatory and Immunological Drugs, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Xiongwen Lv
- Institute of Liver Disease, Anhui Medical University, Hefei, Anhui, China; Center of Traditional Chinese Medicine Formula Granule, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Anti-inflammatory and Immunological Drugs, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China.
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Palikov VA, Palikova YA, Rudenko PA, Kazakov VA, Borozdina NA, Kravchenko IN, Pakhomova IA, Kazakova EN, Slashcheva GA, Semushina SG, Khokhlova ON, Dyachenko IA. Modeling of Chronic Lung Inflammation in Rats by Repeated Intratracheal Administration of LPS. Bull Exp Biol Med 2022; 173:790-793. [DOI: 10.1007/s10517-022-05633-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Indexed: 11/06/2022]
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Li Y, Yu H, Lv M, Li Q, Zou K, Lv S. Combination therapy with budesonide and N-acetylcysteine ameliorates LPS-induced ALI by attenuating neutrophil recruitment through the miR-196b-5p/Socs3 molecular axis. BMC Pulm Med 2022; 22:388. [PMID: 36289489 PMCID: PMC9608916 DOI: 10.1186/s12890-022-02185-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 09/26/2022] [Indexed: 11/24/2022] Open
Abstract
Background Neutrophil infiltration accelerates the inflammatory response and is highly correlated to the development of acute lung injury (ALI). Budesonide (BUD) and N-acetylcysteine (NAC) both inhibit the inflammatory response to alleviate ALI, so we further investigated whether their combination is better for ALI. Methods In this study, we investigated the effect and mechanism of Combined BUD and NAC therapy on LPS-induced ALI. Rat ALI model and neutrophil abnormal activation model were established by lipopolysaccharide (LPS). BUD and NAC were treated alone or in combination, or cells were transfected with miR-196b-5p mimic or si-Socs3 to evaluate the efficacy and mechanism of BUD and NAC alone or in combination. Histopathological observation of lungs was performed by Hematoxylin Eosin (HE) staining. The quantity of neutrophils and inflammatory factors level in bronchoalveolar lavage fluid (BALF) were determined by Richter-Gimza complex stain and Enzyme-Linked Immunosorbnent Assay (ELISA), respectively. ReverseTranscription-PolymeraseChainReaction (RT–qPCR) was utilized to assess miR-196b-5p and inflammatory factor mRNA levels. The expression level of Socs3 was detected by immunohistochemistry or Western Blot. Results BUD and NAC combined treatment had a better effect on neutrophil recruitment and inflammatory response in LPS-induced ALI than did BUD and NAC alone. Transfection of the miR-196b-5p mimic reversed the effect of combined BUD and NAC. In conclusion, the combination of BUD and NAC is a better treatment for ALI. Conclusions Combination therapy with BUD and NAC ameliorates LPS-induced ALI by attenuating neutrophil recruitment through the miR-196b-5p/Socs3 molecular axis. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-02185-7.
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Affiliation(s)
- Yang Li
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, 655000 Yunnan China
| | - Huimin Yu
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, 655000 Yunnan China
| | - Meifen Lv
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, 655000 Yunnan China
| | - Qiaofen Li
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, 655000 Yunnan China
| | - Kaiwen Zou
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, 655000 Yunnan China
| | - Shaokun Lv
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, 655000 Yunnan China
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Tao YC, Wang YH, Wang ML, Jiang W, Wu DB, Chen EQ, Tang H. Upregulation of microRNA-125b-5p alleviates acute liver failure by regulating the Keap1/Nrf2/HO-1 pathway. Front Immunol 2022; 13:988668. [PMID: 36268033 PMCID: PMC9578503 DOI: 10.3389/fimmu.2022.988668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/15/2022] [Indexed: 12/14/2022] Open
Abstract
Background Acute liver failure (ALF) and acute-on-chronic liver failure (ACLF) are the two most common subtypes of liver failure. They are both life-threatening clinical problems with high short-term mortality. Although liver transplantation is an effective therapeutic, its application is limited due to the shortage of donor organs. Given that both ACLF and ALF are driven by excessive inflammation in the initial stage, molecules targeting inflammation may benefit the two conditions. MicroRNAs (miRNAs) are a group of small endogenous noncoding interfering RNA molecules. Regulation of miRNAs related to inflammation may serve as promising interventions for the treatment of liver failure. Aims To explore the role and mechanism of miR-125b-5p in the development of liver failure. Methods Six human liver tissues were categorized into HBV-non-ACLF and HBV-ACLF groups. Differentially expressed miRNAs (DE-miRNAs) were screened and identified through high-throughput sequencing analysis. Among these DE-miRNAs, miR-125b-5p was selected for further study of its role and mechanism in lipopolysaccharide (LPS)/D-galactosamine (D-GalN) -challenged Huh7 cells and mice in vitro and in vivo. Results A total of 75 DE-miRNAs were obtained. Of these DE-miRNAs, miR-125b-5p was the focus of further investigation based on our previous findings and preliminary results. We preliminarily observed that the levels of miR-125b-5p were lower in the HBV-ACLF group than in the HBV-non-ACLF group. Meanwhile, LPS/D-GalN-challenged mice and Huh7 cells both showed decreased miR-125b-5p levels when compared to their untreated control group, suggesting that miR-125b-5p may have a protective role against liver injury, regardless of ACLF or ALF. Subsequent results revealed that miR-125b-5p not only inhibited Huh7 cell apoptosis in vitro but also relieved mouse ALF in vivo with evidence of improved liver histology, decreased alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels, and reduced tumor necrosis factor-α (TNF-α) and IL-1β levels. Based on the results of a biological prediction website, microRNA.org, Kelch-like ECH-associated protein 1 (Keap1) was predicted to be one of the target genes of miR-125b-5p, which was verified by a dual-luciferase reporter gene assay. Western blot results in vitro and in vivo showed that miR-125b-5p could decrease the expression of Keap1 and cleaved caspase-3 while upregulating the expression of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) and heme oxygenase-1(HO-1). Conclusion Upregulation of miR-125b-5p can alleviate acute liver failure by regulating the Keap1/Nrf2/HO-1 pathway, and regulation of miR-125b-5p may serve as an alternative intervention for liver failure.
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Affiliation(s)
- Ya-Chao Tao
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China,Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Yong-Hong Wang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China,Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Meng-Lan Wang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China,Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Wei Jiang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China,Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Dong-Bo Wu
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China,Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - En-Qiang Chen
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China,Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China,*Correspondence: Hong Tang, ; En-Qiang Chen,
| | - Hong Tang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China,Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China,*Correspondence: Hong Tang, ; En-Qiang Chen,
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Yang YQ, Ge P, Lv MQ, Yu PF, Liu ZG, Zhang J, Zhao WB, Han SP, Sun RF, Zhou DX. Rno_circRNA_008646 regulates formaldehyde induced lung injury through Rno-miR-224 mediated FOXI1/CFTR axis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 243:113999. [PMID: 35998475 DOI: 10.1016/j.ecoenv.2022.113999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 08/09/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Formaldehyde (FA) serves as a prevailing air pollutant, which has seriously threatened public health in recent years. Of all the known health effects, lung injury is one of the most severe risks. However, little is known about the circRNAs related molecular mechanism in the development of lung injury induced by FA. This study was designed to explore the potential roles of dysregulated circRNAs as well as its mechanism in FA-induced lung injury. In the present study, 24 male SD rats were exposed to formaldehyde (control, 0.5, 2.46 and 5 mg/m3) for 8 h per day for 8 weeks to induce lung injury. We used H&E staining to evaluate the histopathological changes of lung injury indifferent groups. The expression of circRNAs in lung tissue was detected by real-time PCR. Meanwhile, circRNA/miRNA/mRNA interaction networks were predicted by bioinformatics analysis. Our study revealed that formaldehyde exposure resulted in abnormal histopathological changes in lung tissues. Moreover, the expression of rno_circRNA_008646 was significantly higher in lung tissues of formaldehyde exposure rats than in control. Bioinformatics analysis showed that one potential target miRNA/mRNA for rno_circRNA_008646 was rno-miR-224/Forkhead Box I1 (FOXI1). Besides, luciferase report gene confirmed that there was targeted binding relationship between rno_circRNA_008646 and rno-miR-224, rno-miR-224 and FOXI1. Further verification experiments indicated that the expression of rno_circRNA_008646 was negatively correlated rno-miR-224, while it was positively correlated with FOXI1. JASPAR database showed transcription factor FOXI1 located in promotor of CF Transmembrane Conductance Regulator (CFTR). Both FOXI1 and CFTR were up-regulated in lung tissues after formaldehyde exposure. In conclusion, our findings suggested that formaldehyde may induce lung injury, and this may be caused by up-regulatedrno_circRNA_008646, which medicated rno-miR-224/FOXI1/CFTR axis.
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Affiliation(s)
- Yan-Qi Yang
- Department of Pathology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi PR China; Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi, PR China
| | - Pan Ge
- Department of Pathology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi PR China; Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi, PR China
| | - Mo-Qi Lv
- Department of Pathology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi PR China; Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi, PR China
| | - Peng-Fei Yu
- Department of Gastrointestinal Surgery, Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Changlexi St. 127#, Xi'an, Shaanxi, PR China
| | - Zhi-Gang Liu
- Department of Thoracic Surgery, Tumor Hospital of Shaanxi Province, Affiliated to the Medical College of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, PR China
| | - Jian Zhang
- Department of Pathology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi PR China; Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi, PR China
| | - Wen-Bao Zhao
- Department of Pathology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi PR China; Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi, PR China
| | - Shui-Ping Han
- Department of Pathology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi PR China; Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi, PR China
| | - Rui-Fang Sun
- Department of Pathology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi PR China; Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi, PR China.
| | - Dang-Xia Zhou
- Department of Pathology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi PR China; Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi, PR China.
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Li H, Niu X, Shi H, Feng M, Du Y, Sun R, Ma N, Wang H, Wei D, Gao M. circHECTD1 attenuates apoptosis of alveolar epithelial cells in acute lung injury. J Transl Med 2022; 102:945-956. [PMID: 36775423 DOI: 10.1038/s41374-022-00781-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 02/21/2022] [Accepted: 03/04/2022] [Indexed: 12/26/2022] Open
Abstract
Circular RNAs (circRNAs) play important roles in many lung diseases. This study aimed to investigate the role of circHECTD1 in acute lung injury (ALI). The mouse and cell models of ALI were induced by lipopolysaccharide (LPS). The apoptosis of alveolar epithelial cells (AECs) was detected by flow cytometry. The relationships between circHECTD1, miRNAs, and target genes were assessed by RNA pull-down, luciferase reporter gene, and RNA-FISH assays. circHECTD1 was downregulated in LPS-induced human and mouse AECs (HBE and MLE-12). The knockdown of circHECTD1 increased the apoptotic rates and the expressions of miR-136 and miR-320a, while its overexpression caused opposite effects in LPS-induced HBE and MLE-12 cells. Mechanistically, circHECTD1 bound to miR-320a and miR-136. miR-320a targeted PIK3CA and mediated the effect of circHECTD1 on PIK3CA expression. miR-136 targeted Sirt1 and mediated the effect of circHECTD1 on Sirt1 expression. Silencing PIK3CA and/or Sirt1 reversed the effect of circHECTD1 overexpression on the apoptosis of LPS-induced HBE and MLE-12 cells. In vivo, overexpression of circHECTD1 alleviated the LPS-induced ALI of mice. Our findings suggested that circHECTD1 inhibits the apoptosis of AECs through miR-320a/PIK3CA and miR-136/Sirt1 pathways in LPS-induced ALI.
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Affiliation(s)
- Hongbin Li
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China.
| | - Xiaoxuan Niu
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Huijuan Shi
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Min Feng
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Yuming Du
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Rongqing Sun
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Ning Ma
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Haili Wang
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Dan Wei
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China
| | - Min Gao
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan Province, China.
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Wang X, Feng J, Dai H, Mo J, Luo B, Luo C, Zhang W, Pan L. microRNA-130b-3p delivery by mesenchymal stem cells-derived exosomes confers protection on acute lung injury. Autoimmunity 2022; 55:597-607. [PMID: 36018063 DOI: 10.1080/08916934.2022.2094370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
OBJECTIVE Researchers have investigated miR-130b-3p in lung disease pathology, such as lung fibrosis. The present study was performed to elucidate the miR-130b-3p-involved mechanism in acute lung injury (ALI) through delivery by mesenchymal stem cells-derived exosomes (MSCs-Exo). METHODS ALI mouse models were induced via intratracheal administration of lipopolysaccharide (LPS) and treated with MSCs-Exo. Lung dry-wet (W/D) ratio, inflammatory factors in the bronchoalveolar lavage fluid, pathological damage and apoptosis in the lung tissues were analyzed. Expression levels of miR-130b-3p and TGFBR1 were measured in the mouse lung tissues, and the interaction between miR-130b-3p and TGFBR1 was studied. RESULTS MSCs-Exo relieved LPS-induced ALI in mice by reducing lung W/D ratio and inflammatory response, and attenuating lung tissue pathological damage and reducing the alveolar cell apoptosis. miR-130b-3p delivery by MSCs-Exo reduced LPS-induced ALI in mice. TGFBR1 was determined to be a downstream target gene of miR-130b-3p. Inhibition of TGFBR1 could remit LPS-induced ALI in mice. The protection mediated by MSCs-Exo carrying miR-130b-3p could be rescued by elevating TGFBR1 expression. CONCLUSION miR-130b-3p delivery by MSCs-Exo confers protection on ALI in mice via the downregulation of TGFBR1.
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Affiliation(s)
- Xiaoxia Wang
- Key Laboratory for Basic Science and Prevention of Perioperative Organ Disfunction Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China.,The Laboratory of Perioperative Medicine Research Center, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China.,Department of Anesthesiology, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China.,Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Jifeng Feng
- Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Huijun Dai
- Key Laboratory for Basic Science and Prevention of Perioperative Organ Disfunction Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China.,The Laboratory of Perioperative Medicine Research Center, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China.,Department of Anesthesiology, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China.,Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Jianla Mo
- Key Laboratory for Basic Science and Prevention of Perioperative Organ Disfunction Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China.,The Laboratory of Perioperative Medicine Research Center, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China.,Department of Anesthesiology, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China.,Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Bijun Luo
- Key Laboratory for Basic Science and Prevention of Perioperative Organ Disfunction Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China.,The Laboratory of Perioperative Medicine Research Center, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China.,Department of Anesthesiology, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China.,Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Cheng Luo
- Key Laboratory for Basic Science and Prevention of Perioperative Organ Disfunction Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Weikang Zhang
- The Affiliated Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Oncology and Basic Medicine, Chinese Academy of Sciences, Hangzhou City, Zhejiang Province, China
| | - Linghui Pan
- Key Laboratory for Basic Science and Prevention of Perioperative Organ Disfunction Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China.,The Laboratory of Perioperative Medicine Research Center, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China.,Department of Anesthesiology, Guangxi Medical University Affiliated Tumor Hospital & Oncology Medical College, Nanning, Guangxi, China
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Gao L, Xiao C, Cheng T, Wang Z, Xia W. Cellular Imaging Analysis Algorithm-Based Assessment and Prediction of Disease in Patients with Acute Lung Injury. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:3193671. [PMID: 36051925 PMCID: PMC9424040 DOI: 10.1155/2022/3193671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/12/2022] [Accepted: 08/01/2022] [Indexed: 11/18/2022]
Abstract
This paper uses cellular imaging analysis algorithms to assess and predict the condition of patients with acute lung injury. Given the unique optical properties of UCNPs, this paper designs a ratiometric upconversion fluorescent nanoprobe for the determination of nitric oxide (NO) content in living cells and tissues. To address the image degradation phenomenon of optical sections, this paper uses a blind deconvolution method to abate the degradation effect caused by the scattered focus surface, thus completing the image recovery. After that, grayscale and binarization are performed using the weighted average method and the Otsu method. In this paper, we propose a migration learning-based Resnet-50 network for the triple classification of unlabeled leukocytes based on the characteristics of cell images acquired by a miniaturized label-free microfluidic cell imaging detection device. The migration learning can rapidly optimize the network parameters, the short connection structure of Resnet-50 is more suitable for feature extraction of unlabeled leukocytes than the InceptionV3 model without a short connection structure, and the accuracy of the Resnet-50 network can reach 94% in the test set. In this paper, we propose two tracking algorithms based on the dynamic Gaussian mixture model and mathematical morphology-based algorithms suitable for cells of different shapes for cell tracking in microscopic images, neuronal cell labeling in fluorescent images, and cell segmentation in mice. These methods have the advantages of low cost, speed, reproducibility, and objectivity, and we hope that their elicitation will be useful for relevant cell biology research.
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Affiliation(s)
- Liang Gao
- Department of Urology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, China
| | - Chengwang Xiao
- The Third Department of Internal Medicine, Wannian Hospital of Traditional Chinese Medicine, Shangrao 335500, China
| | - Taoyi Cheng
- Department of Critical Medicine, Wannian Hospital of Traditional Chinese Medicine, Shangrao 335500, China
| | - Zhaohan Wang
- Department of Gastroenterology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, China
| | - Wenhan Xia
- Department of Critical Medicine, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, China
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Xue Y, Zhang Y, Chen L, Wang Y, Lv Z, Yang LQ, Li S. Citrulline protects against LPS‑induced acute lung injury by inhibiting ROS/NLRP3‑dependent pyroptosis and apoptosis via the Nrf2 signaling pathway. Exp Ther Med 2022; 24:632. [PMID: 36160882 PMCID: PMC9468793 DOI: 10.3892/etm.2022.11569] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/29/2022] [Indexed: 12/02/2022] Open
Abstract
Acute lung injury (ALI) is a common complication in patients with sepsis and is accompanied by high mortality. The present study aimed to investigate if the organic compound citrulline has a protective against lipopolysaccharide (LPS)-stimulated ALI and its potential mechanisms. ALI was induced in mice by intraperitoneal (i.p.) injection of LPS (10 mg/kg). Citrulline (1 g/kg/day) was administrated i.p. 7 days prior to LPS injection. Mouse lung vascular endothelial cells (MLVECs) were divided into five groups: Control, LPS, LPS + Cit, LPS + N-acetyl-L-cysteine (NAC) and LPS + Cit + ML385. Lung injury was determined by morphology changes. Apoptosis and pyroptosis were detected using western blot analysis and immunofluorescence. The present results indicated that citrulline can significantly attenuate ALI. Citrulline pretreatment decreased the expression of NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasome and decreased pyroptosis and apoptosis. Intervention with the total reactive oxygen species (ROS) scavenger N-acetyl-L-cysteine attenuated NLRP3 inflammasome-associated pyroptosis and apoptosis in LPS-treated MLVECs. Citrulline pretreatment inhibited pyroptotic cell death and apoptosis induced by LPS. Citrulline decreased accumulation of intracellular ROS and activated the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway. Furthermore, the Nrf2 inhibitor ML385 reversed ROS generation, NLRP3 inflammasome-mediated pyroptosis and apoptosis suppressed by citrulline. In summary, the present data demonstrated that citrulline may confer protection against ALI via inhibition of ROS/NLRP3 inflammasome-dependent pyroptosis and apoptosis via the Nrf2 signaling pathway.
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Affiliation(s)
- Yao Xue
- Department of Anesthesiology, The Affiliated Shenmu Hospital of Northwest University, Shenmu, Shaanxi 719300, P.R. China
| | - Yunqian Zhang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Li Chen
- Department of Anesthesiology, Suqian Hospital of Nanjing Drum‑Tower Hospital Group, Suqian, Jiangsu 223865, P.R. China
| | - Yan Wang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Zhou Lv
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Li-Qiao Yang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Siyuan Li
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
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Qu R, Liu J, Feng L, Li L, Liu J, Sun F, Sun L. Down-regulation of KLF9 ameliorates LPS-caused acute lung injury and inflammation in mice via reducing GSDMD expression. Autoimmunity 2022; 55:587-596. [PMID: 35993279 DOI: 10.1080/08916934.2022.2114465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Acute lung injury (ALI) is considered as a severe respiratory disease with aggravated inflammatory responses. Krüppel-like factor 9 (KLF9), a member of KLF family, has been reported to be involved in inflammatory disorders. However, the effect of KLF9 in ALI has not been elucidated. Here the present study was to clarify the role of KLF9 and its mechanism in ALI. The ALI in vitro model was established with lipopolysaccharide (LPS)-treated RAW264.7 cells. Mice were injected with LPS to conduct an ALI in vivo model. The expression of KLF9 and gasdermin D (GSDMD) was examined using quantitative reverse transcription-PCR, haematoxylin-eosin/immunohistochemistry staining and western blot assays. Enzyme-linked immunosorbent assay was employed to detect the levels of inflammatory cytokines. JASPAR database was used to predict the recognition motif of KLF9, and the relationship between KLF9 and GSDMD was determined by luciferase reporter assay and chromatin immunoprecipitation analysis. The number of neutrophils in bronchoalveolar lavage fluid as well as the wet/dry weight ratio was caculated. The results showed that The expression of KLF9 in lung was significantly increased in LPS-stimulated mice. Moreover, KLF9 knockout relieved the lung injury in ALI mice. GSDMD is one of targets genes of the transcription factor KLF9. KLF9 knockout induced a decreased expression of GSDMD in LPS-treated mice. Furthermore, in RAW264.7 cells after LPS administration, KLF9 knockdown reduced the levels of inflammatory factors and suppressed the expression of GSDMD. In summarise, these findings exhibited that KLF9 knockout could mitigate the lung injury and inflammatory responses in ALI mice by directly regulating GSDMD.
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Affiliation(s)
- Renliang Qu
- Department of Laboratory Medicine, Qishan Hospital, Yantai, Shandong, China
| | - Jingjing Liu
- Department of Laboratory Medicine, Qishan Hospital, Yantai, Shandong, China
| | - Lili Feng
- Department of Microbiology Laboratory, Huangdao District Center for Disease Control and Prevention, Qingdao, Shandong, China
| | - Lianbing Li
- Health Center of Shuidao Town, Yantai, Shandong, China
| | - Junwei Liu
- Department of Laboratory Medicine, Qishan Hospital, Yantai, Shandong, China
| | - Fengnan Sun
- Department of Laboratory Medicine, Yantaishan Hospital, Yantai, Shandong, China
| | - Lin Sun
- Department of Laboratory Medicine, Yantaishan Hospital, Yantai, Shandong, China
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MiR-223-3p-loaded exosomes from bronchoalveolar lavage fluid promote alveolar macrophage autophagy and reduce acute lung injury by inhibiting the expression of STK39. Hum Cell 2022; 35:1736-1751. [PMID: 35932362 DOI: 10.1007/s13577-022-00762-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 07/24/2022] [Indexed: 11/04/2022]
Abstract
This study investigated the molecular mechanism by which bronchoalveolar lavage fluid exosomes (BALF-exo) alleviated acute lung injury (ALI). BALF-exo was isolated from mice. LPS was used to induce inflammation in rat alveolar macrophages (NR8383). NR8383 cell models were treated with BALF-exo or BALF-exo loaded with miR-223-3p mimics/inhibitors, or STK39 was overexpressed in NR8383 cells before LPS and BALF-exo treatment. These cells were subjected to apoptosis, autophagy, and inflammation assays. RNA immunoprecipitation and dual-luciferase reporter assay were conducted to verify the binding between miR-223-3p and STK39. LPS-induced ALI mouse models were treated with BALF-exo loaded with miR-223-3p mimics. miR-223-3p was lowly expressed in BALF-exo from LPS-treated mice. BALF-exo loaded with miR-223-3p mimics increased viability and autophagy and decreased apoptosis and inflammation in NR8383 cell models. Inhibition of miR-223-3p in BALF-exo or overexpression of STK39 in NR8383 cells repressed the therapeutic effect of BALF-exo in LPS-treated NR8383 cells. STK39 was a target gene of miR-223-3p. miR-223-3p shuttled by BALF-exo negatively regulated the expression of STK39 in NR8383 cells. BALF-exo loaded with miR-223-3p mimics also reduced lung injuries in ALI mice. In conclusion, miR-223-3p loaded in BALF-exo alleviates ALI by targeting STK39 in alveolar macrophages.
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Shimizu J, Murao A, Nofi C, Wang P, Aziz M. Extracellular CIRP Promotes GPX4-Mediated Ferroptosis in Sepsis. Front Immunol 2022; 13:903859. [PMID: 35844517 PMCID: PMC9277504 DOI: 10.3389/fimmu.2022.903859] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/01/2022] [Indexed: 12/29/2022] Open
Abstract
Sepsis is characterized by life-threatening organ dysfunction caused by a dysregulated host response to infection. Extracellular cold-inducible RNA-binding protein (eCIRP) is a damage-associated molecular pattern (DAMP) that promotes inflammation and induces cell death via apoptosis, NETosis, and/or pyroptosis. Ferroptosis is a form of regulated cell death characterized by the accumulation of lipid peroxide on cellular membranes. We hypothesize that eCIRP induces ferroptosis in macrophages and lung tissue during sepsis. RAW 264.7 cells stimulated with recombinant murine (rm) CIRP significantly decreased the expression of glutathione peroxidase 4 (GPX4), a negative regulator of ferroptosis, and increased lipid reactive oxygen species (ROS) in a TLR4 dependent manner. In TLR4-/- peritoneal macrophages, depression of GPX4 expression and increase in lipid ROS levels were attenuated after rmCIRP-treatment compared to WT macrophages. rmCIRP also induced cell death in RAW 264.7 cells which was corrected by the ferroptosis inhibitor, ferrostatin-1 (Fer-1). Intraperitoneal injection of rmCIRP decreased GPX4 expression and increased lipid ROS in lung tissue, whereas the increase of lipid ROS was reduced by Fer-1 treatment. GPX4 expression was significantly decreased, while malondialdehyde (MDA), iron levels, and injury scores were significantly increased in lungs of WT mice after cecal ligation and puncture (CLP)-induced sepsis compared to CIRP-/- mice. Treatment with C23, a specific eCIRP inhibitor, in CLP mice alleviated the decrease in GPX4 and increase in MDA levels of lung tissue. These findings suggest that eCIRP induces ferroptosis in septic lungs by decreasing GPX4 and increasing lipid ROS. Therefore, regulation of ferroptosis by targeting eCIRP may provide a new therapeutic approach in sepsis and other inflammatory diseases.
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Affiliation(s)
- Junji Shimizu
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Atsushi Murao
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Colleen Nofi
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States.,Department of Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Ping Wang
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States.,Department of Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States.,Department of Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Monowar Aziz
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States.,Department of Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States.,Department of Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
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Fu Z, Wu X, Zheng F, Zhang Y. Activation of the AMPK-ULK1 pathway mediated protective autophagy by sevoflurane anesthesia restrains LPS-induced acute lung injury (ALI). Int Immunopharmacol 2022; 108:108869. [DOI: 10.1016/j.intimp.2022.108869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/05/2022] [Accepted: 05/12/2022] [Indexed: 11/05/2022]
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Xia D, Wang S, Liu A, Li L, Zhou P, Xu S. CCL25 Inhibition Alleviates Sepsis-Induced Acute Lung Injury and Inflammation. Infect Drug Resist 2022; 15:3309-3321. [PMID: 35782530 PMCID: PMC9241997 DOI: 10.2147/idr.s352544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 05/20/2022] [Indexed: 12/03/2022] Open
Abstract
Purpose Acute lung injury (ALI) is a common clinical syndrome with high mortality. The chemokine ligand 25 (CCL25) is involved in inflammation, leukocyte trafficking and immunoregulation. However, the role and mechanism of CCL25 in ALI are not fully understood yet. The aim of this study was to explore the relationship between acute lung injury and CCL25. Patients and Methods In this study, we first examined chemokine expression in sepsis patients and found that serum CCL25 expression levels were relatively high in sepsis patients compared to healthy individuals. Based on this, we designed in vitro and in vivo experiments to verify the validity of the theory. In vitro, we used lipopolysaccharide-stimulated human pulmonary microvascular endothelial cells (HPMECs). In vivo, we established male C57BL/6 mice cecal ligation puncture (CLP) model of sepsis. Results In vitro, we used lipopolysaccharide-stimulated human pulmonary microvascular endothelial cells (HPMECs) and found significantly higher expression of CCL25 by enzyme-linked immunosorbent assay. Inhibition of CCL25 resulted in a significant decrease in the expression of inflammatory cytokines in HPMECs. In addition, we found that CCL25 promoted increased endothelial permeability by reducing the expression of tight junction proteins and was associated with activation of the P38 MAPK pathway by measuring the transepithelial electrical resistance and fluorescence intensity of fluorescein isothiocyanate. Results from luciferase assays and chromatin immunoprecipitation assays showed that inhibition of NF-κB activity in HPMECs decreased CCL25 expression, but addition of recombinant CCL25 increased cell permeability and inflammatory cytokine expression. In vivo, we established male C57BL/6 mice cecal ligation puncture (CLP) model of sepsis. We found that inhibition of CCL25 significantly reduced inflammatory cytokine expression in a CLP-induced sepsis model, thereby alleviating lung tissue damage in mice. Conclusion Our study suggests that CCL25 contributed to the development of ALI by modulating the functions of microvascular endothelial cells.
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Affiliation(s)
- Demeng Xia
- Luodian Clinical Drug Research Center, Shanghai Baoshan Luodian Hospital, Shanghai University, Shanghai, People’s Republic of China
| | - Sheng Wang
- Department of Emergency, Changhai Hospital, The Naval Medical University, Shanghai, People’s Republic of China
| | - Anwei Liu
- Luodian Clinical Drug Research Center, Shanghai Baoshan Luodian Hospital, Shanghai University, Shanghai, People’s Republic of China
- Department of Critical Care Medicine, Hospital of Southern Theatre Command of PLA, Guangzhou, People’s Republic of China
| | - Lei Li
- Department of Emergency, Changhai Hospital, The Naval Medical University, Shanghai, People’s Republic of China
| | - Panyu Zhou
- Department of Emergency, Changhai Hospital, The Naval Medical University, Shanghai, People’s Republic of China
| | - Shuogui Xu
- Department of Emergency, Changhai Hospital, The Naval Medical University, Shanghai, People’s Republic of China
- Correspondence: Shuogui Xu; Panyu Zhou, Department of Emergency, Changhai Hospital, Naval Medical University, Xiangyin Road, Shanghai, 200433, People’s Republic of China, Tel +8613176535161; +8619821317892, Email ;
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Qiao L, Li RX, Hu SG, Liu Y, Liu HQ, Wu HJ. microRNA-145-5p attenuates acute lung injury via targeting ETS2. Kaohsiung J Med Sci 2022; 38:565-573. [PMID: 35579106 DOI: 10.1002/kjm2.12556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 01/21/2022] [Accepted: 02/16/2022] [Indexed: 11/11/2022] Open
Abstract
The protective effect of microRNA (miR)-145-5p in acute lung injury (ALI) has been discovered previously. Thus, in this study, we attempted to further investigate the mechanism of miR-145-5p in ALI through the downstream E26 transformation-specific proto-oncogene 2 (ETS2)/transforming growth factor β1 (TGF-β1)/Smad pathway. A lipopolysaccharide (LPS)-induced ALI rat model was established. The expression of miR-145-5p in ALI rat lung tissues was up-regulated. Afterward, pathological damage in the lung tissue, the wet/dry (W/D) ratio, apoptosis, and serum inflammatory factor contents were observed. miR-145-5p, ETS2, TGF-β1, Smad2/3, and phosphorylated Smad2/3 levels were measured in rats. miR-145-5p expression was down-regulated, ETS2 expression was up-regulated, and the TGF-β1/Smad pathway was activated in LPS-exposed rats. Overexpression of miR-145-5p inactivated the TGF-β1/Smad pathway and attenuated ALI, as reflected by relieved pathological damage, a decreased W/D ratio, reduced apoptosis, and suppressed inflammatory response. In contrast, loss of miR-145-5p or elevated ETS2 levels worsened ALI and activated the TGF-β1/Smad pathway. Moreover, elevation of ETS2 diminished miR-145-5p-mediated protection against ALI. Evidently, miR-145-5p negatively regulates ETS2 expression and inactivates the TGF-β1/Smad pathway to ameliorate ALI in rats.
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Affiliation(s)
- Liang Qiao
- Department of Emergency, Henan Province Hospital of TCM (The Second Affiliated Hospital of Henan University of Traditional Chinese Medicine), Zhengzhou, Henan, China
| | - Rong-Xia Li
- Emergency Center, Qinghai Provincial People's Hospital, Xining, Qinghai, China
| | - Shan-Gang Hu
- Department of Emergency, Henan Province Hospital of TCM (The Second Affiliated Hospital of Henan University of Traditional Chinese Medicine), Zhengzhou, Henan, China
| | - Yu Liu
- Department of Emergency, Henan Province Hospital of TCM (The Second Affiliated Hospital of Henan University of Traditional Chinese Medicine), Zhengzhou, Henan, China
| | - Hong-Qiang Liu
- Department of Emergency, Henan Province Hospital of TCM (The Second Affiliated Hospital of Henan University of Traditional Chinese Medicine), Zhengzhou, Henan, China
| | - Hong-Jun Wu
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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MicroRNAs: Important Regulatory Molecules in Acute Lung Injury/Acute Respiratory Distress Syndrome. Int J Mol Sci 2022; 23:ijms23105545. [PMID: 35628354 PMCID: PMC9142048 DOI: 10.3390/ijms23105545] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/07/2022] [Accepted: 05/13/2022] [Indexed: 02/06/2023] Open
Abstract
Acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) is an overactivated inflammatory response caused by direct or indirect injuries that destroy lung parenchymal cells and dramatically reduce lung function. Although some research progress has been made in recent years, the pathogenesis of ALI/ARDS remains unclear due to its heterogeneity and etiology. MicroRNAs (miRNAs), a type of small noncoding RNA, play a vital role in various diseases. In ALI/ARDS, miRNAs can regulate inflammatory and immune responses by targeting specific molecules. Regulation of miRNA expression can reduce damage and promote the recovery of ALI/ARDS. Consequently, miRNAs are considered as potential diagnostic indicators and therapeutic targets of ALI/ARDS. Given that inflammation plays an important role in the pathogenesis of ALI/ARDS, we review the miRNAs involved in the inflammatory process of ALI/ARDS to provide new ideas for the pathogenesis, clinical diagnosis, and treatment of ALI/ARDS.
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Abstract
OBJECTIVE Interleukin-38 (IL-38), a new type of cytokine, is involved in processes such as tissue repair, inflammatory response, and immune response. However, its function in pneumonia caused by Pseudomonas aeruginosa (P. aeruginosa) is still unclear. METHODS In this study, we detected circulating IL-38 and cytokines such as IL-1β, IL-6, IL-17A, TNF-α, IL-8, and IL-10 in adults affected by early stage pneumonia caused by P. aeruginosa. Collected clinical data of these patients, such as the APACHE II score, levels of PCT, and oxygenation index when they entering the ICU. Using P. aeruginosa-induced pneumonia WT murine model to evaluate the effect of IL-38 on Treg differentiation, cell apoptosis, survival, tissue damage, inflammation, and bacterial removal. RESULTS In clinical research, although IL-38 is significantly increased during the early stages of clinical P. aeruginosa pneumonia, the concentration of IL-38 in the serum of patients who died with P. aeruginosa pneumonia was relatively lower than that of surviving patients. It reveals IL-38 may insufficiently secreted in patients who died with P. aeruginosa pneumonia. Besides, the serum IL-38 level of patients with P. aeruginosa pneumonia on the day of admission to the ICU showed significantly positive correlations with IL-10 and the PaO2/FiO2 ratio but negative correlations with IL-1β, IL-6, IL-8, IL-17, TNF-α, APACHE II score, and PCT In summary, IL-38 might be a molecule for adjuvant therapy in P. aeruginosa pneumonia. In experimental animal models, first recombinant IL-38 improved survival, whereas anti-IL-38 antibody reduced survival in the experimental pneumonia murine model. Secondly, IL-38 exposure reduced the inflammatory response, as suggested by the lung injury, and reduced cytokine levels (IL-1β, IL-6, IL- 17A, TNF-α, and IL-8, but not IL-10). It also increased bacterial clearance and reduced cell apoptosis in the lungs. Furthermore, IL-38 was shown to reduce TBK1 expression in vitro when naive CD4+ T lymphocytes were differentiated to Tregs and played a protective role in P. aeruginosa pneumonia. CONCLUSIONS To summarize, the above findings provide additional insights into the mechanism of IL-38 in the treatment of P. aeruginosa pneumonia.
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Zhang Y, Song D, Peng Z, Wang R, Li K, Ren H, Sun X, Du N, Tang SC. Anisodamine enhances macrophage M2 polarization through suppressing G9a-mediated IRF4 silencing to alleviate LPS-induced acute lung injury. J Pharmacol Exp Ther 2022; 381:247-256. [PMID: 35383125 DOI: 10.1124/jpet.121.001019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/31/2022] [Indexed: 11/22/2022] Open
Abstract
Acute lung injury (ALI) is a serious inflammatory lung disease. Imbalances in the polarization of classically activated (M1) and alternatively activated (M2) macrophages are closely related to ALI. Anisodamine has a promising therapeutic effect for septic shock. Nevertheless, the role of Anisodamine in progression of ALI remains to be investigated. Our results showed that Anisodamine significantly reduced lung damage, myeloperoxidase (MPO) activity, lung wet/dry ratio, total cell number and protein concentrations in bronchoalveolar lavage fluid (BALF), and decreased IL-6 level and the levels of M1 phenotypic markers, while increased IL-10 level and the levels of M2 phenotypic markers in mice with a nasal instillation of lipopolysaccharide (LPS). Bone marrow-derived macrophages (BMDMs) were stimulated or transfected with LPS plus Anisodamine or LPS plus G9a shRNA. Anisodamine and downregulation of G9a both promoted BMDM M2 polarization caused by IL-4 treatment and inhibited M1 polarization resulted from LPS treatment. ChIP assay revealed that Anisodamine inhibited G9a-mediated methylation and expression suppression on IRF4. Overexpression of G9a or silence of IRF4 reversed the improvement effect of Anisodamine on lung tissue injury, evidencing by an increase of MPO activity and the restoration of LPS-induced alterations of M1 and M2 polarization. In conclusion, Anisodamine protected against LPS-induced ALI, during which Anisodamine suppressed the LPS-stimulated alterations of macrophage M1 and M2 polarization through inhibiting G9a mediated methylation of IRF4, suggesting that Anisodamine was a potential therapeutic drug to alleviate ALI. Significance Statement Anisodamine treatment was able to attenuate lung injury and pulmonary edema after the stimulation of LPS, and the specific mechanism was through reversing the LPS-induced alterations of M1 and M2 polarization by inhibiting G9a mediated silencing of IRF4, which suggests the Anisodamine has the potential to alleviate ALI.
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Affiliation(s)
- Yunfeng Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Dingli Song
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Ziyang Peng
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Rui Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Kai Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Hong Ren
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Xin Sun
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Ning Du
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Shou-Ching Tang
- Cancer Center and Research Institute, University of Mississippi Medical Center, United States
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