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Wang S, Liu J, Dong J, Fan Z, Wang F, Wu P, Li X, Kou R, Chen F. Allyl methyl trisulfide protected against LPS-induced acute lung injury in mice via inhibition of the NF-κB and MAPK pathways. Front Pharmacol 2022; 13:919898. [PMID: 36003507 PMCID: PMC9394683 DOI: 10.3389/fphar.2022.919898] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Allyl methyl trisulfide (AMTS) is one major lipid-soluble organosulfur compound of garlic. Previous studies have reported the potential therapeutic effect of garlic on acute lung injury (ALI) or its severe condition acute respiratory distress syndrome (ARDS), but the specific substances that exert the regulatory effects are still unclear. In this study, we investigate the protective effects of AMTS on lipopolysaccharide (LPS)-induced ALI mice and explored the underlying mechanisms. In vivo experiments, ICR mice were pretreated with 25–100 mg/kg AMTS for 7 days and followed by intratracheal instillation of LPS (1.5 mg/kg). The results showed that AMTS significantly attenuated LPS-induced deterioration of lung pathology, demonstrated by ameliorative edema and protein leakage, and improved pulmonary histopathological morphology. Meanwhile, the expression of inflammatory mediators and the infiltration of inflammation-regulation cells induced by LPS were also inhibited. In vitro experiments also revealed that AMTS could alleviate inflammation response and inhibit the exaggeration of macrophage M1 polarization in LPS-induced RAW264.7 cells. Mechanistically, we identified that AMTS treatment could attenuate the LPS-induced elevation of protein expression of p-IκBα, nuclear NF-κB-p65, COX2, iNOS, p-P38, p-ERK1/2, and p-JNK. Collectively, these data suggest that AMTS could attenuate LPS-induced ALI and the molecular mechanisms should be related to the suppression of the NF-κB and MAPKs pathways.
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Affiliation(s)
- Shuo Wang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, China
| | - Jinqian Liu
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, China
| | - Jing Dong
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, China
| | - Zongqiang Fan
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, China
| | - Fugui Wang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, China
| | - Ping Wu
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, China
| | - Xiaojing Li
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, China
| | - Ruirui Kou
- School of Public Health, Shandong University, Jinan, Shandong, China
- *Correspondence: Ruirui Kou, ; Fang Chen,
| | - Fang Chen
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, China
- *Correspondence: Ruirui Kou, ; Fang Chen,
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Kleymenov DA, Bykonia EN, Popova LI, Mazunina EP, Gushchin VA, Kolobukhina LV, Burgasova OA, Kruzhkova IS, Kuznetsova NA, Shidlovskaya EV, Divisenko EV, Pochtovyi AA, Bacalin VV, Smetanina SV, Tkachuk AP, Logunov DY, Gintsburg AL. A Deep Look Into COVID-19 Severity Through Dynamic Changes in Blood Cytokine Levels. Front Immunol 2021; 12:771609. [PMID: 34858428 PMCID: PMC8630739 DOI: 10.3389/fimmu.2021.771609] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/11/2021] [Indexed: 12/29/2022] Open
Abstract
An excessive inflammatory response to SARS-CoV-2 is thought to be a major cause of disease severity and mortality in patients with COVID-19. Longitudinal analysis of cytokine release can expand our understanding of the initial stages of disease development and help to identify early markers serving as predictors of disease severity. In this study, we performed a comprehensive analysis of 46 cytokines (including chemokines and growth factors) in the peripheral blood of a large cohort of COVID-19 patients (n=444). The patients were classified into five severity groups. Longitudinal analysis of all patients revealed two groups of cytokines, characterizing the "early" and "late" stages of the disease course and the switch between type 1 and type 2 immunity. We found significantly increased levels of cytokines associated with different severities of COVID-19, and levels of some cytokines were significantly higher during the first three days from symptom onset (DfSO) in patients who eventually required intensive care unit (ICU) therapy. Additionally, we identified nine cytokines, TNF-α, IL-10, MIG, IL-6, IP-10, M-CSF, G-CSF, GM-CSF, and IFN-α2, that can be used as good predictors of ICU requirement at 4-6 DfSO.
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Affiliation(s)
- Denis A Kleymenov
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Evgeniia N Bykonia
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Liubov I Popova
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Elena P Mazunina
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Vladimir A Gushchin
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia.,Department of Virology, Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
| | - Liudmila V Kolobukhina
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia.,Moscow Healthcare Department, Moscow, Russia
| | - Olga A Burgasova
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia.,Moscow Healthcare Department, Moscow, Russia.,Department of Infectious Diseases, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | | | - Nadezhda A Kuznetsova
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Elena V Shidlovskaya
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Elizaveta V Divisenko
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Andrei A Pochtovyi
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia.,Department of Virology, Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
| | - Valeria V Bacalin
- Moscow Healthcare Department, Moscow, Russia.,Department of Infectious Diseases, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | | | - Artem P Tkachuk
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Denis Y Logunov
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Alexander L Gintsburg
- Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, Moscow, Russia.,Department of Infectiology and Virology, Federal State Autonomous Educational Institution of Higher Education I. M. Sechenov, First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
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3
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Pei C, Wang F, Huang D, Shi S, Wang X, Wang Y, Li S, Wu Y, Wang Z. Astragaloside IV Protects from PM2.5-Induced Lung Injury by Regulating Autophagy via Inhibition of PI3K/Akt/mTOR Signaling in vivo and in vitro. J Inflamm Res 2021; 14:4707-4721. [PMID: 34557015 PMCID: PMC8453246 DOI: 10.2147/jir.s312167] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 08/31/2021] [Indexed: 12/17/2022] Open
Abstract
Introduction Prolonged exposure to air polluted with airborne fine particulate matter (PM2.5) can increase respiratory disease risk. Astragaloside IV (AS-IV) is one of the main bioactive substances in the traditional Chinese medicinal herb, Astragalus membranaceus Bunge. AS-IV has numerous pharmacological properties; whereas there are few reports on the prevention of PM2.5-induced lung injury by AS-IV through modulation of the autophagic pathway. This study aimed to investigate the protective effects and the underlying mechanisms of AS-IV in PM2.5-induced lung injury rats and rat alveolar macrophages (NR8383 cells). Methods The pneumotoxicity model was established by intratracheal injection of PM2.5 in rats, and PM2.5 challenge in NR8383 cells. The severity of lung injury was evaluated by wet weight to dry weight ratio and McGuigan pathology scoring. Inflammatory factors and oxidative stress were detected through ELISA. The expressions of p-PI3K, p-Akt, and p-mTOR proteins were analyzed by immunohistochemistry. Immunofluorescence and transmission electron microscopy were used to detect autophagosomes. The expressions of autophagy marker protein (LC3B and p62), PI3K/Akt/mTOR signaling and NF-κB translocation were detected by Western blot in lung tissue and NR8383 cells. Results After PM2.5 stimulation, rats showed severe inflammation and oxidative stress, along with inhibition of autophagy in lung tissue. AS-IV not only decreased pulmonary inflammation and oxidative stress by inhibiting nuclear factor kappa B translocation, but also regulated autophagy by inhibiting PI3K/Akt/mTOR signaling. After treatment with 3-methyladenine (a classic PI3K inhibitor, blocking the formation of autophagosomes), the protective effect of AS-IV on PM2.5-induced lung injury was further strengthened. In parallel, using Western blot, immunohistochemistry, and transmission electron microscopy, we demonstrated that AS-IV restore autophagic flux mainly through regulating the degradation of autophagosomes rather than suppressing the formation in vivo and in vitro. Conclusion Our data indicated that AS-IV protects from PM2.5-induced lung injury in vivo and in vitro by inhibiting the PI3K/Akt/mTOR pathway to regulate autophagy and inflammation.
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Affiliation(s)
- Caixia Pei
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, People's Republic of China
| | - Fei Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, People's Republic of China
| | - Demei Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, People's Republic of China
| | - Shihua Shi
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, People's Republic of China
| | - Xiaomin Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, People's Republic of China
| | - Yilan Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, People's Republic of China
| | - Shuiqin Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, People's Republic of China
| | - Yongcan Wu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, People's Republic of China
| | - Zhenxing Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, People's Republic of China
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Li X, Chu Q, Wang H. MicroRNA-16 regulates lipopolysaccharide-induced inflammatory factor expression by targeting TLR4 in normal human bronchial epithelial cells. Exp Ther Med 2021; 22:982. [PMID: 34345264 PMCID: PMC8311244 DOI: 10.3892/etm.2021.10414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 05/04/2021] [Indexed: 12/24/2022] Open
Abstract
Acute lung injury (ALI) is mainly caused by inflammation and is associated with high mortality rates. Emerging evidence has suggested that microRNAs (miRNAs or miRs) serve a significant function in ALI. However, the fundamental mechanism underlying ALI remain to be fully elucidated. Although miR-16 has been reported to be involved in the occurrence and development of a number of diseases its association with ALI has not been previously investigated. Therefore, the present study aimed to explore the role of miR-16 in the lipopolysaccharide (LPS)-induced ALI model. The expression levels of tumor necrosis factor α (TNF-α), interleukin (IL)-1β and IL-6 were measured by ELISA in the blood samples of rats with ALI and in the normal human bronchial epithelial (NHBE) cell line. The role of miR-16 in inflammation was evaluated using gene overexpression and silencing experiments in NHBE cells by reverse transcription-quantitative PCR. In addition, the expression levels of inflammatory factors TNF-α, IL-1β and IL-6 were also determined using ELISA. The potential interaction between miR-16 and TLR4 was assessed using bioinformatics analysis by the TargetScan database and then verified in 293T cells using luciferase reporter assay. The expression of miR-16 was notably decreased in the lung tissues of rats with LPS-induced ALI compared with the PBS treated-group. Additionally, the levels of the proinflammatory cytokines TNF-α, IL-1β and IL-6 were reduced following transfection of NHBE cells with miR-16 mimics compared with those in the miR-negative control group. Western blot analysis revealed that miR-16 overexpression could downregulate TLR4 expression in NHBE cells compared with that in the miR-NC group. Luciferase reporter assay confirmed that TLR4 may be directly targeted by miR-16. The effect of miR-16 on TLR4 was rescued in NHBE cells following treatment with LPS. Overall, these aforementioned findings suggest that miR-16 may serve a protective role against LPS-mediated inflammatory responses in NHBE cells by regulating TLR4, where this mechanism may be considered to be a novel approach for treating ALI in the future.
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Affiliation(s)
- Xiaobo Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Qian Chu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Huaqi Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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Mesenchymal Stromal Cells Are More Effective Than Their Extracellular Vesicles at Reducing Lung Injury Regardless of Acute Respiratory Distress Syndrome Etiology. Stem Cells Int 2019; 2019:8262849. [PMID: 31531026 PMCID: PMC6720722 DOI: 10.1155/2019/8262849] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 07/01/2019] [Accepted: 07/21/2019] [Indexed: 02/07/2023] Open
Abstract
Although mesenchymal stromal cells (MSCs) have demonstrated beneficial effects on experimental acute respiratory distress syndrome (ARDS), preconditioning may be required to potentiate their therapeutic effects. Additionally, administration of cell-free products, such as extracellular vesicles (EVs) obtained from MSC-conditioned media, might be as effective as MSCs. In this study, we comparatively evaluated the effects of MSCs, preconditioned or not with serum collected from mice with pulmonary or extrapulmonary ARDS (ARDSp and ARDSexp, respectively), and the EVs derived from these cells on lung inflammation and remodeling in ARDSp and ARDSexp mice. Administration of MSCs (preconditioned or not), but not their EVs, reduced static lung elastance, interstitial edema, and collagen fiber content in both ARDSp and ARDSexp. Although MSCs and EVs reduced alveolar collapse and neutrophil cell counts in lung tissue, therapeutic responses were superior in mice receiving MSCs, regardless of preconditioning. Despite higher total cell, macrophage, and neutrophil counts in bronchoalveolar lavage fluid in ARDSp than ARDSexp, MSCs and EVs (preconditioned or not) led to a similar decrease. In ARDSp, both MSCs and EVs, regardless of preconditioning, reduced levels of tumor necrosis factor- (TNF-) α, interleukin-6, keratinocyte chemoattractant (KC), vascular endothelial growth factor (VEGF), and transforming growth factor- (TGF-) β in lung homogenates. In ARDSexp, TNF-α, interleukin-6, and KC levels were reduced by MSCs and EVs, preconditioned or not; only MSCs reduced VEGF levels, while TGF-β levels were similarly increased in ARDSexp treated either with saline, MSCs, or EVs, regardless of preconditioning. In conclusion, MSCs yielded greater overall improvement in ARDS in comparison to EVs derived from the same number of cells and regardless of the preconditioning status. However, the effects of MSCs and EVs differed according to ARDS etiology.
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Microarray profiling of lung long non-coding RNAs and mRNAs in lipopolysaccharide-induced acute lung injury mouse model. Biosci Rep 2019; 39:BSR20181634. [PMID: 30979832 PMCID: PMC6488857 DOI: 10.1042/bsr20181634] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 04/03/2019] [Accepted: 04/10/2019] [Indexed: 02/05/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are involved in various biological processes as well as many respiratory diseases, while the role of lncRNAs in acute lung injury (ALI) remains unclear. The present study aimed to profile the expression of lung lncRNAs and mRNAs in lipopolysaccharide (LPS)-induced ALI mouse model. C57BL/6 mice were exposed to LPS or phosphate-buffered saline for 24 h, and lncRNAs and mRNAs were profiled by Arraystar mouse LncRNA Array V3.0. Bioinformatics analysis gene ontology including (GO) and pathway analysis and cell study in vitro was used to investigate potential mechanisms. Based on the microarray results, 2632 lncRNAs and 2352 mRNAs were differentially expressed between ALI and control mice. The microarray results were confirmed by the quantitative real-time PCR (qRT-PCR) results of ten randomized selected lncRNAs. GO analysis showed that the altered mRNAs were mainly related to the processes of immune system, immune response and defense response. Pathway analysis suggests that tumor necrosis factor (TNF) signaling pathway, NOD-like receptor pathway, and cytokine-cytokine receptor interaction may be involved in ALI. LncRNA-mRNA co-expression network analysis indicated that one individual lncRNA may interact with several mRNAs, and one individual mRNA may also interact with several lncRNAs. Small interfering RNA (siRNA) for ENSMUST00000170214.1, - ENSMUST00000016031.13 significantly inhibited LPS-induced TNF-α and interleukin (IL)-1β production in murine RAW264.7 macrophages. Our results found significant changes of lncRNAs and mRNAs in the lungs of LPS-induced ALI mouse model, and intervention targeting lncRNAs may attenuate LPS-induced inflammation, which may help to elucidate the role of lncRNAs in the pathogenesis and treatment of ALI.
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7
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Liu Z, Chen L, Yu P, Zhang Y, Fang B, Wu C, Luo W, Chen X, Li C, Liang G. Discovery of 3-(Indol-5-yl)-indazole Derivatives as Novel Myeloid Differentiation Protein 2/Toll-like Receptor 4 Antagonists for Treatment of Acute Lung Injury. J Med Chem 2019; 62:5453-5469. [DOI: 10.1021/acs.jmedchem.9b00316] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zhiguo Liu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Lingfeng Chen
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Pengtian Yu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- Department of Pharmacy, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China
| | - Yali Zhang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Bo Fang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Chao Wu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Wu Luo
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Xianxin Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Chenglong Li
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
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Xiao S, Zhang W, Chen H, Fang B, Qiu Y, Chen X, Chen L, Shu S, Zhang Y, Zhao Y, Liu Z, Liang G. Design, synthesis, and structure-activity relationships of 2-benzylidene-1-indanone derivatives as anti-inflammatory agents for treatment of acute lung injury. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:887-899. [PMID: 29719375 PMCID: PMC5914570 DOI: 10.2147/dddt.s160314] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Purpose The purpose of this study was to design and synthesize novel 2-benzylidene-1-indanone derivatives for treatment of acute lung injury. Methods A series of 39 novel 2-benzylidene-indanone structural derivatives were synthesized and evaluated for anti-inflammatory activity in lipopolysaccharide (LPS)-stimulated murine primary macrophages. Results Most of the obtained compounds effectively inhibited the LPS-induced expression of IL-6 and TNF-α. The most active compound, 8f, was found to significantly reduce LPS-induced pulmonary inflammation, as reflected by reductions in the concentration of total protein, inflammatory cell count, as well as the lung wet/dry ratio in bronchoalveolar lavage (BAL) fluid. Furthermore, 8f effectively inhibited mRNA expression of several inflammatory cytokines after LPS challenge in vitro and in vivo. Administration of 8f also blocked LPS-induced activation of the proinflammatory NF-κB/MAPK signaling pathway. Conclusion The simple synthetic preparation and biological properties of these derivatives make these 2-benzylidene-indanone scaffolds promising new entities for the development of anti-inflammatory therapeutics for the treatment of acute lung injury.
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Affiliation(s)
- Siyang Xiao
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wenxin Zhang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Hongjin Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Bo Fang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yinda Qiu
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, China
| | - Xianxin Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lingfeng Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Sheng Shu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yali Zhang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yunjie Zhao
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhiguo Liu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
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9
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Tian X, Ohmura T, Shah AS, Son S, Tian Y, Birukova AA. Role of End Binding Protein-1 in endothelial permeability response to barrier-disruptive and barrier-enhancing agonists. Cell Signal 2016; 29:1-11. [PMID: 27667566 DOI: 10.1016/j.cellsig.2016.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 08/23/2016] [Accepted: 09/21/2016] [Indexed: 11/26/2022]
Abstract
Rapid changes in microtubule (MT) polymerization dynamics affect regional activity of small GTPases RhoA and Rac1, which play a key role in the regulation of actin cytoskeleton and endothelial cell (EC) permeability. This study tested the role of End Binding Protein-1 (EB1) in the mechanisms of increased and decreased EC permeability caused by thrombin and hepatocyte growth factor (HGF) and mediated by RhoA and Rac1 GTPases, respectively. Stimulation of human lung EC with thrombin inhibited peripheral MT growth, which was monitored by morphological and biochemical evaluation of peripheral MT and the levels of stabilized MT. In contrast, stimulation of EC with HGF promoted peripheral MT growth and protrusion of EB1-positive MT plus ends to the EC peripheral submembrane area. EB1 knockdown by small interfering RNA did not affect partial MT depolymerization, activation of Rho signaling, and permeability response to thrombin, but suppressed the HGF-induced endothelial barrier enhancement. EB1 knockdown suppressed HGF-induced activation of Rac1 and Rac1 cytoskeletal effectors cortactin and PAK1, impaired HGF-induced assembly of cortical cytoskeleton regulatory complex (WAVE-p21Arc-IQGAP1), and blocked HGF-induced enhancement of peripheral actin cytoskeleton and VE-cadherin-positive adherens junctions. Altogether, these data demonstrate a role for EB1 in coordination of MT-dependent barrier enhancement response to HGF, but show no involvement of EB1 in acute increase of EC permeability caused by the barrier disruptive agonist. The results suggest that increased peripheral EB1 distribution is a critical component of the Rac1-mediated pathway and peripheral cytoskeletal remodeling essential for agonist-induced EC barrier enhancement.
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Affiliation(s)
- Xinyong Tian
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, IL 60637, United States
| | - Tomomi Ohmura
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, IL 60637, United States
| | - Alok S Shah
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, IL 60637, United States
| | - Sophia Son
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, IL 60637, United States
| | - Yufeng Tian
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, IL 60637, United States
| | - Anna A Birukova
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, IL 60637, United States.
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Chi X, Wei X, Gao W, Guan J, Yu X, Wang Y, Li X, Cai J. Dexmedetomidine ameliorates acute lung injury following orthotopic autologous liver transplantation in rats probably by inhibiting Toll-like receptor 4-nuclear factor kappa B signaling. J Transl Med 2015; 13:190. [PMID: 26070954 PMCID: PMC4467671 DOI: 10.1186/s12967-015-0554-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 06/01/2015] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND To investigate whether pretreatment with dexmedetomidine (Dex) has a protective effect against acute lung injury (ALI) in an orthotopic autologous liver transplantation (OALT) rat model and to explore the mechanisms responsible for the protective effect of Dex against lung injury. METHODS Forty-eight rats underwent OALT and were randomly divided into six groups (n = 8 in each group) that received 10 µg/kg Dex, 50 µg/kg Dex, 50 µg/kg Dex + nonspecific α2-adrenergic receptor (AR) antagonist atipamezole, 50 µg/kg Dex + specific α2B/C-AR antagonist ARC-239, 50 µg/kg Dex + specific α2A-AR antagonist BRL-44408, or the same amount of normal saline. The sham rats (n = 8) underwent anesthesia induction, laparotomy, and separation of the portal vein without liver ischemia and reperfusion. Lung tissue sections were stained with hematoxylin and eosin (HE) to visualize the damage. The expression of Toll-like receptor 4 (TLR4) and the phospho-nuclear factor (NF)-κB p65 subunit as well as inflammatory cytokines was measured. RESULTS Rats exhibited increased histological lung injury scores and pulmonary edema following OALT. Pretreatment with 50 μg/kg Dex attenuated OALT-induced lung injury in rats, probably by inhibiting the activation of the TLR4-NF-κB signaling pathway. The protective effect of Dex could be blocked by atipamezole or BRL-44408, but not by ARC-239, suggesting these effects of Dex were mediated, at least in part, by the α2A-AR. CONCLUSIONS Dex exerts protective effects against ALI following OALT, and this protection is associated with the suppression of TLR4-NF-κB signaling. Thus, pretreatment with Dex may be a useful method for reducing lung damage caused by liver transplantation.
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Affiliation(s)
- Xinjin Chi
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510630, China.
| | - Xiaoxia Wei
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510630, China.
| | - Wanling Gao
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510630, China.
| | - Jianqiang Guan
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510630, China.
| | - Xiaofan Yu
- Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, Fujian, 350001, China.
| | - Yiheng Wang
- Department of Anesthesiology, First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, China.
| | - Xi Li
- Department of Thyroid and Breast Surgery, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510630, China.
| | - Jun Cai
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510630, China.
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Tian X, Tian Y, Moldobaeva N, Sarich N, Birukova AA. Microtubule dynamics control HGF-induced lung endothelial barrier enhancement. PLoS One 2014; 9:e105912. [PMID: 25198505 PMCID: PMC4157766 DOI: 10.1371/journal.pone.0105912] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 07/29/2014] [Indexed: 01/11/2023] Open
Abstract
Microtubules (MT) play a vital role in many cellular functions, but their role in peripheral actin cytoskeletal dynamics which is essential for control of endothelial barrier and monolayer integrity is less understood. We have previously described the enhancement of lung endothelial cell (EC) barrier by hepatocyte growth factor (HGF) which was associated with Rac1-mediated remodeling of actin cytoskeleton. This study investigated involvement of MT-dependent mechanisms in the HGF-induced enhancement of EC barrier. HGF-induced Rac1 activation was accompanied by phosphorylation of stathmin, a regulator of MT dynamics. HGF also stimulated MT peripheral growth monitored by time lapse imaging and tracking analysis of EB-1-decorated MT growing tips, and increased the pool of acetylated tubulin. These effects were abolished by EC pretreatment with HGF receptor inhibitor, downregulation of Rac1 pathway, or by expression of a stathmin-S63A phosphorylation deficient mutant. Expression of stathmin-S63A abolished the HGF protective effects against thrombin-induced activation of RhoA cascade, permeability increase, and EC barrier dysfunction. These results demonstrate a novel MT-dependent mechanism of HGF-induced EC barrier regulation via Rac1/PAK1/stathmin-dependent control of MT dynamics.
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Affiliation(s)
- Xinyong Tian
- Department of Medicine, University of Chicago, Chicago, Illinois, United States of America
| | - Yufeng Tian
- Department of Medicine, University of Chicago, Chicago, Illinois, United States of America
| | - Nurgul Moldobaeva
- Department of Medicine, University of Chicago, Chicago, Illinois, United States of America
| | - Nicolene Sarich
- Department of Medicine, University of Chicago, Chicago, Illinois, United States of America
| | - Anna A. Birukova
- Department of Medicine, University of Chicago, Chicago, Illinois, United States of America
- * E-mail:
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Maron-Gutierrez T, Silva JD, Cruz FF, Alegria S, Xisto DG, Assis EF, Castro-Faria-Neto HC, Dos Santos CC, Morales MM, Rocco PRM. Insult-dependent effect of bone marrow cell therapy on inflammatory response in a murine model of extrapulmonary acute respiratory distress syndrome. Stem Cell Res Ther 2013; 4:123. [PMID: 24406030 PMCID: PMC3856598 DOI: 10.1186/scrt334] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 10/03/2013] [Indexed: 02/08/2023] Open
Abstract
Introduction Administration of bone marrow-derived cells produces beneficial effects in experimental extrapulmonary acute respiratory distress syndrome (ARDS). However, there are controversies regarding the effects of timing of cell administration and initial insult severity on inflammatory response. We evaluated the effects of bone marrow-derived mononuclear cells (BMDMC) in two models of extrapulmonary ARDS once lung morphofunctional changes had already been installed. Methods BALB/c mice received lipopolysaccharide (LPS) intraperitoneally (5 mg/kg in 0.5 ml saline) or underwent cecal ligation and puncture (CLP). Control mice received saline intraperitoneally (0.5 ml) or underwent sham surgery. At 24 hours, groups were further randomized to receive saline or BMDMC (2 × 106) intravenously. Lung mechanics, histology, and humoral and cellular parameters of lung inflammation and remodeling were analyzed 1, 3 and 7 days after ARDS induction. Results BMDMC therapy led to improved survival in the CLP group, reduced lung elastance, alveolar collapse, tissue and bronchoalveolar lavage fluid cellularity, collagen fiber content, and interleukin-1β and increased chemokine (keratinocyte-derived chemokine and monocyte chemotactic protein-1) expression in lung tissue regardless of the experimental ARDS model. Intercellular adhesion molecule-1 and vascular cell adhesion molecule-1 expression in lung tissue increased after cell therapy depending on the insult (LPS or CLP). Conclusions BMDMC therapy at day 1 successfully reduced lung inflammation and remodeling, thus contributing to improvement of lung mechanics in both extrapulmonary ARDS models. Nevertheless, the different inflammatory responses induced by LPS and CLP resulted in distinct effects of BMDMC therapy. These data may be useful in the clinical setting, as they suggest that the type of initial insult plays a key role in the outcome of treatment.
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Abstract
Acute lung injury (ALI) and its more severe form, acute respiratory distress syndrome (ARDS), have high mortality rates with few treatment options. An important regulatory factor in the pathology observed in ALI/ARDS is a disruption of the pulmonary endothelial barrier which, in combination with epithelial barrier disruption, causes leakage of fluid, protein and cells into lung airspaces. Degradation of the glycosaminoglycan, hyaluronan (HA), is involved in reduction of the endothelial glycocalyx, disruption of endothelial cell-cell contacts and activation of HA binding proteins upregulated in ALI/ARDS which promote a loss of pulmonary vascular integrity. In contrast, exogenous administration of high molecular weight HA has been shown to be protective in several models of ALI. This review focuses on the dichotomous role of HA to both promote and inhibit ALI based on its size and the HA binding proteins present. Further, potential therapeutic applications of high molecular weight HA in treating ALI/ARDS are discussed.
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Affiliation(s)
- Patrick A Singleton
- Department of Medicine, Section of Pulmonary and Critical Care, The University of Chicago, Chicago, IL 60637, USA ; Department of Anesthesia and Critical Care, Pritzker School of Medicine, The University of Chicago, Chicago, IL 60637, USA
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