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Liang S, Lin J, Xiao M, Shi T, Song Y, Zhang T, Zhou X, Li R, Zhao X, Yang Z, Ti H. Effect of Haoqin Qingdan Tang on influenza A virus through the Janus kinase/signal transducer and activator of transcription (JAK/STAT) pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155680. [PMID: 38728923 DOI: 10.1016/j.phymed.2024.155680] [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: 11/03/2023] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 05/12/2024]
Abstract
OBJECTIVE Influenza, a viral respiratory illness, leads to seasonal epidemics and occasional pandemics. Given the rising resistance and adverse reactions associated with anti-influenza drugs, Traditional Chinese Medicine (TCM) emerges as a promising approach to counteract the influenza virus. Specifically, Haoqin Qingdan Tang (HQQDT), a TCM formula, has been employed as an adjuvant treatment for influenza in China. However, the active compounds and underlying mechanisms of HQQDT remain unknown. AIM The aim of this study was to investigate HQQDT's antiviral and anti-inflammatory activities in both in vivo and in vitro, and further reveal its active ingredients and mechanism. METHODS In vivo and in vitro experiments were conducted to verify the antiviral and anti-inflammatory activities of HQQDT. Subsequently, the active ingredients and mechanism of HQQDT were explored through combining high performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (HPLC-Q-TOF-MS) analysis and network pharmacology. Finally, the examinations of cell cytokines and signaling pathways aimed to elucidate the predicted mechanisms. RESULTS The results indicated that HQQDT exhibited inhibitory effects on influenza viruses A/PR/8/34 (H1N1), A/HK/1/68 (H3N2), and A/California/4/2009 (H1N1) in vitro. Furthermore, HQQDT enhanced the survival rate of influenza-infected mice, reduced the lung index and lung virus titer, and mitigated lung tissue damage in vivo. The proinflammatory cytokine expression levels upon influenza virus infection in PR8-induced A549 cells or mice were suppressed by HQQDT, including IL-6, IL-1β, CCL2, CCL4, IP-10, interferon β1 (IFN-β1), the interferon regulatory factor 3 (IRF3), and hemagglutinin (HA). Twenty-two active components of HQQDT against influenza were identified using HPLC-Q-TOF-MS analysis. Based on network pharmacological predictions, the JAK/STAT signaling pathway is considered the most relevant for HQQDT's action against influenza. Finally, western blot assays revealed that HQQDT regulated the protein level of the JAK/STAT signaling pathway in PR8-infected A549 cells and lung tissue. CONCLUSION These findings verified the antiviral and anti-inflammatory effects of HQQDT through JAK-STAT signaling pathway in influenza infections, laying the foundation for its further development.
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Affiliation(s)
- Shiyun Liang
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jieling Lin
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Mengjie Xiao
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences(China National Analytical Center, Guangzhou, Guangzhou, 510070, China
| | - Tongmei Shi
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yu Song
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences(China National Analytical Center, Guangzhou, Guangzhou, 510070, China
| | - Tianbo Zhang
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Xi Zhou
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences(China National Analytical Center, Guangzhou, Guangzhou, 510070, China
| | - Runfeng Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, China
| | - Xin Zhao
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences(China National Analytical Center, Guangzhou, Guangzhou, 510070, China
| | - Zifeng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, China; Guangzhou Laboratory, Guangzhou, 510000, China; Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou, 510000, China; State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau, 519020, China.
| | - Huihui Ti
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Guangdong Province Precise Medicine Big Date of Traditional Chinese Medicine EngineeringTechnology Research Center, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
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Chen Y, Gu X, Cao K, Tu M, Liu W, Ju J. The role of innate lymphoid cells in systemic lupus erythematosus. Cytokine 2024; 179:156623. [PMID: 38685155 DOI: 10.1016/j.cyto.2024.156623] [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: 02/29/2024] [Revised: 04/10/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
Systemic lupus erythematosus (SLE) is a connective tissue disorder that affects various body systems. Both the innate and adaptive immunity contribute to the onset and progression of SLE. The main mechanism of SLE is an excessive immune response of immune cells to autoantigens, which leads to systemic inflammation and inflammation-induced organ damage. Notably, a subset of innate immune cells known as innate lymphoid cells (ILCs) has recently emerged. ILCs are pivotal in the early stages of infection; participate in immune responses, inflammation, and tissue repair; and regulate the immune function of the body by resisting pathogens and regulating autoimmune inflammation and metabolic homeostasis. Thus, ILCs dysfunction can lead to autoimmune diseases. This review discusses the maturation of ILCs, the potential mechanisms by which ILCs exacerbate SLE pathogenesis, and their contributions to organ inflammatory deterioration in SLE.
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Affiliation(s)
- Yong Chen
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Xiaotian Gu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Kunyu Cao
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Miao Tu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Wan Liu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China.
| | - Jiyu Ju
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China.
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Gu W, Zeng Q, Wang X, Jasem H, Ma L. Acute Lung Injury and the NLRP3 Inflammasome. J Inflamm Res 2024; 17:3801-3813. [PMID: 38887753 PMCID: PMC11182363 DOI: 10.2147/jir.s464838] [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: 02/20/2024] [Accepted: 05/22/2024] [Indexed: 06/20/2024] Open
Abstract
Acute lung injury (ALI) manifests through harm to the capillary endothelium and alveolar epithelial cells, arising from a multitude of factors, leading to scattered interstitial alterations, pulmonary edema, and subsequent acute hypoxic respiratory insufficiency. Acute lung injury (ALI), along with its more serious counterpart, acute respiratory distress syndrome (ARDS), carry a fatality rate that hovers around 30-40%. Its principal pathological characteristic lies in the unchecked inflammatory reaction. Currently, the main strategies for treating ALI are alleviation of inflammation and prevention of respiratory failure. Concerning the etiology of ALI, NLRP3 Inflammasome is essential to the body's innate immune response. The composition of this inflammasome complex includes NLRP3, the pyroptosis mediator ASC, and pro-caspase-1. Recent research has reported that the inflammatory response centered on NLRP3 inflammasomes plays a key part in inflammation in ALI, and may hence be a prospective candidate for therapeutic intervention. In the review, we present an overview of the ailment characteristics of acute lung injury along with the constitution and operation of the NLRP3 inflammasome within this framework. We also explore therapeutic strategies targeting the NLRP3 inflammasome to combat acute lung injury.
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Affiliation(s)
- Wanjun Gu
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Qi Zeng
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Xin Wang
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Huthaifa Jasem
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Ling Ma
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
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Qiu H, Luan X, Mei E. High fibrinogen-prealbumin ratio (FPR) predicts stroke-associated pneumonia. J Stroke Cerebrovasc Dis 2024; 33:107703. [PMID: 38556069 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107703] [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: 12/01/2023] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 04/02/2024] Open
Abstract
OBJECTIVES Although numerous factors had been found to be associated with stroke-associated pneumonia (SAP), the underlying mechanisms of SAP remain unclear. Fibrinogen-prealbumin ratio (FPR) is a novel indicator that could balance the effects of inflammation and nutrition, which might reflect biological status of patients more comprehensively than other biomarkers. To date, FPR has not been explored in acute ischemic stroke patients. This study aims to explore the relationship between FPR and SAP. MATERIALS AND METHODS 900 stroke patients participated in this retrospective study and 146 healthy controls were recruited. Fibrinogen and prealbumin were measured within 24 hours on admission. FPR was calculated after dividing fibrinogen (g/L) by prealbumin (mg/L) × 1000. SAP was defined according to the modified Centers for Disease Control criteria. RESULTS 121 patients were diagnosed with SAP. Log10FPR was higher in stroke patients than healthy controls. In logistic regression analysis, log10FPR was independently associated with SAP (OR 15.568; 95% CI: 3.287-73.732; P=0.001). Moreover, after using ROC curve, the predictive power of "current standard"(defined as A2DS2 plus leukocyte count and log10hs-CRP) plus log10FPR (0.832[0.804-0.857]) was higher than "current standard" (0.811[0.782-0.837], P=0.0944) and A2DS2 plus log10FPR (0.801[0.772-0.828], P=0.0316). No significant difference was found between the predictive power of A2DS2 plus log10FPR and "current standard" (P =0.6342). CONCLUSION Higher FPR was observed in stroke patients compared with healthy controls and was significantly associated with SAP. FPR might provide useful clues for timely identification and treatment of SAP.
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Affiliation(s)
- Huihua Qiu
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xiaoqian Luan
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Enci Mei
- Department of Dermatology and Venereology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
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Zhu M, Yi Y, Jiang K, Liang Y, Li L, Zhang F, Zheng X, Yin H. Single-cell combined with transcriptome sequencing to explore the molecular mechanism of cell communication in idiopathic pulmonary fibrosis. J Cell Mol Med 2024; 28:e18499. [PMID: 38887981 PMCID: PMC11184282 DOI: 10.1111/jcmm.18499] [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: 11/03/2023] [Revised: 05/14/2024] [Accepted: 06/08/2024] [Indexed: 06/20/2024] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a common, chronic, and progressive lung disease that severely impacts human health and survival. However, the intricate molecular underpinnings of IPF remains elusive. This study aims to delve into the nuanced molecular interplay of cellular interactions in IPF, thereby laying the groundwork for innovative therapeutic approaches in the clinical field of IPF. Sophisticated bioinformatics methods were employed to identify crucial biomarkers essential for the progression of IPF. The GSE122960 single-cell dataset was obtained from the Gene Expression Omnibus (GEO) compendium, and intercellular communication potentialities were scrutinized via CellChat. The random survival forest paradigm was established using the GSE70866 dataset. Quintessential genes were selected through Kaplan-Meier (KM) curves, while immune infiltration examinations, functional enrichment critiques and nomogram paradigms were inaugurated. Analysis of intercellular communication revealed an intimate potential connections between macrophages and various cell types, pinpointing five cardinal genes influencing the trajectory and prognosis of IPF. The nomogram paradigm, sculpted from these seminal genes, exhibits superior predictive prowess. Our research meticulously identified five critical genes, confirming their intimate association with the prognosis, immune infiltration and transcriptional governance of IPF. Interestingly, we discerned these genes' engagement with the EPITHELIAL_MESENCHYMAL_TRANSITION signalling pathway, which may enhance our understanding of the molecular complexity of IPF.
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Affiliation(s)
- Minggao Zhu
- Intensive Care UnitThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
| | - Yuhu Yi
- Intensive Care UnitThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
| | - Kui Jiang
- Department of NephrologyThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
| | - Yongzhi Liang
- Intensive Care UnitThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
| | - Lijun Li
- Intensive Care UnitThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
| | - Feng Zhang
- Intensive Care UnitThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
| | - Xinglong Zheng
- Intensive Care UnitThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
| | - Haiyan Yin
- Intensive Care UnitThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
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Zheng J, Li Y, Kong X, Guo J. Exploring immune-related pathogenesis in lung injury: Providing new insights Into ALI/ARDS. Biomed Pharmacother 2024; 175:116773. [PMID: 38776679 DOI: 10.1016/j.biopha.2024.116773] [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: 01/17/2024] [Revised: 05/08/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024] Open
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) represent a significant global burden of morbidity and mortality, with lung injury being the primary cause of death in affected patients. The pathogenesis of lung injury, however, remains a complex issue. In recent years, the role of the immune system in lung injury has attracted extensive attention worldwide. Despite advancements in our understanding of various lung injury subtypes, significant limitations persist in both prevention and treatment. This review investigates the immunopathogenesis of ALI/ARDS, aiming to elucidate the pathological processes of lung injury mediated by dendritic cells (DCs), natural killer (NK) cells, phagocytes, and neutrophils. Furthermore, the article expounds on the critical contributions of gut microbiota, inflammatory pathways, and cytokine storms in the development of ALI/ARDS.
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Affiliation(s)
- Jiajing Zheng
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ying Li
- Pharmacy Department of the First Affiliated Hospital, Henan University of Science and Technology, Luoyang 471000, China
| | - Xianbin Kong
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Tianjin Key Laboratory of Modern Chinese Medicine Theory of Innovation and Application, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Jinhe Guo
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Tianjin Key Laboratory of Modern Chinese Medicine Theory of Innovation and Application, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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Qi WH, Hu LF, Gu YJ, Zhang XY, Jiang XM, Li WJ, Qi JS, Xiao GS, Jie H. Integrated mRNA-miRNA transcriptome profiling of blood immune responses potentially related to pulmonary fibrosis in forest musk deer. Front Immunol 2024; 15:1404108. [PMID: 38873601 PMCID: PMC11169664 DOI: 10.3389/fimmu.2024.1404108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 04/18/2024] [Indexed: 06/15/2024] Open
Abstract
Background Forest musk deer (FMD, Moschus Berezovskii) is a critically endangered species world-widely, the death of which can be caused by pulmonary disease in the farm. Pulmonary fibrosis (PF) was a huge threat to the health and survival of captive FMD. MicroRNAs (miRNAs) and messenger RNAs (mRNAs) have been involved in the regulation of immune genes and disease development. However, the regulatory profiles of mRNAs and miRNAs involved in immune regulation of FMD are unclear. Methods In this study, mRNA-seq and miRNA-seq in blood were performed to constructed coexpression regulatory networks between PF and healthy groups of FMD. The hub immune- and apoptosis-related genes in the PF blood of FMD were explored through Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. Further, protein-protein interaction (PPI) network of immune-associated and apoptosis-associated key signaling pathways were constructed based on mRNA-miRNA in the PF blood of the FMD. Immune hub DEGs and immune hub DEmiRNAs were selected for experimental verification using RT-qPCR. Results A total of 2744 differentially expressed genes (DEGs) and 356 differentially expressed miRNAs (DEmiRNAs) were identified in the PF blood group compared to the healthy blood group. Among them, 42 DEmiRNAs were negatively correlated with 20 immune DEGs from a total of 57 correlations. The DEGs were significantly associated with pathways related to CD molecules, immune disease, immune system, cytokine receptors, T cell receptor signaling pathway, Th1 and Th2 cell differentiation, cytokine-cytokine receptor interaction, intestinal immune network for IgA production, and NOD-like receptor signaling pathway. There were 240 immune-related DEGs, in which 186 immune-related DEGs were up-regulated and 54 immune-related DEGs were down-regulated. In the protein-protein interaction (PPI) analysis of immune-related signaling pathway, TYK2, TLR2, TLR4, IL18, CSF1, CXCL13, LCK, ITGB2, PIK3CB, HCK, CD40, CD86, CCL3, CCR7, IL2RA, TLR3, and IL4R were identified as the hub immune genes. The mRNA-miRNA coregulation analysis showed that let-7d, miR-324-3p, miR-760, miR-185, miR-149, miR-149-5p, and miR-1842-5p are key miRNAs that target DEGs involved in immune disease, immune system and immunoregulation. Conclusion The development and occurrence of PF were significantly influenced by the immune-related and apoptosis-related genes present in PF blood. mRNAs and miRNAs associated with the development and occurrence of PF in the FMD.
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Affiliation(s)
- Wen-Hua Qi
- College of Biological and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Li-Fan Hu
- College of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Yu-Jiawei Gu
- College of Biological and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | | | - Xue-Mei Jiang
- College of Biological and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Wu-Jiao Li
- Department of Laboratory Medicine, Shenzhen Children’s Hospital, Shenzhen, China
| | - Jun-Sheng Qi
- College of Biological and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Guo-Sheng Xiao
- College of Biological and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Hang Jie
- Jinfo Mountain Forest Ecosystem Field Scientific Observation and Research Station of Chongqing, Chongqing Institute of Medicinal Plant Cultivation, Chongqing, China
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Liu J, Song K, Lin B, Chen Z, Zuo Z, Fang Y, He Q, Yao X, Liu Z, Huang Q, Guo X. HMGB1 promotes neutrophil PD-L1 expression through TLR2 and mediates T cell apoptosis leading to immunosuppression in sepsis. Int Immunopharmacol 2024; 133:112130. [PMID: 38648712 DOI: 10.1016/j.intimp.2024.112130] [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: 01/16/2024] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
Neutrophils and T lymphocytes are closely related to occurrence of immunosuppression in sepsis. Studies have shown that neutrophil apoptosis decreases and T lymphocyte apoptosis increases in sepsis immunosuppression, but the specific mechanism involved remains unclear. In the present study, we found Toll-like Receptor 2 (TLR2) and programmed death-ligand 1 (PD-L1) were significantly activated in bone marrow neutrophils of wild-type mice after LPS treatment and that they were attenuated by treatment with C29, an inhibitor of TLR2. PD-L1 activation inhibits neutrophil apoptosis, whereas programmed death protein 1 (PD-1)activation promotes apoptosis of T lymphocytes, which leads to immunosuppression. Mechanistically, when sepsis occurs, pro-inflammatory factors and High mobility group box-1 protein (HMGB1) passively released from dead cells cause the up-regulation of PD-L1 through TLR2 on neutrophils. The binding of PD-L1 and PD-1 on T lymphocytes leads to increased apoptosis of T lymphocytes and immune dysfunction, eventually resulting in the occurrence of sepsis immunosuppression. In vivo experiments showed that the HMGB1 inhibitor glycyrrhizic acid (GA) and the TLR2 inhibitor C29 could inhibit the HMGB1/TLR2/PD-L1 pathway, and improving sepsis-induced lung injury. In summary, this study shows that HMGB1 regulates PD-L1 and PD-1 signaling pathways through TLR2, which leads to immunosuppression.
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Affiliation(s)
- Jinlian Liu
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Ke Song
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Bingqi Lin
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zhenfeng Chen
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zirui Zuo
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yixing Fang
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Qi He
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xiaodan Yao
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zhifeng Liu
- Department of Medical Critical Care Medicine, General Hospital of Southern Theatre Command of PLA, 2. Guangdong Branch Center, National Clinical Research Center for Geriatric Diseases (Chinese PLA General Hospital), Guangzhou, Guangdong, China.
| | - Qiaobing Huang
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Xiaohua Guo
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, National Experimental Education Demonstration Center for Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
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Sun R, Ding J, Yang Y, Wu F, Wang X, Liu M, Liu X, Jin X, Liu Y. Trichinella spiralis alleviates LPS-induced acute lung injury by modulating the protective Th2 immune response. Vet Parasitol 2024:110206. [PMID: 38797638 DOI: 10.1016/j.vetpar.2024.110206] [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: 03/07/2024] [Revised: 05/09/2024] [Accepted: 05/09/2024] [Indexed: 05/29/2024]
Abstract
Sepsis is a disorder of immune regulation caused by pathogenic microorganisms. A large number of inflammatory factors and inflammatory mediators are released, resulting in systemic inflammatory response disorder and acute lung injury (ALI). Helminths infection activate Th2 cytokines and immunomodulatory pathways, which have the function of anti-infection effector molecules. The early infection of Trichinella spiralis (T. spiralis) was mainly intestinal phase. In this study, we explored the effect of intestinal phase infection of T. spiralis on LPS-induced ALI. Compared with control mice, the serum and lung tissues of T. spiralis infected mice had a significant decrease of Th1 inflammatory cytokines, a significant increase of Th2 anti-inflammatory cytokines, and a significant decrease of inflammatory cell infiltration in lung tissue. These results suggest that T. spiralis during the intestinal phase can act on distal organs (lung) and reduce LPS-induced lung inflammation, providing evidence for a potential new pathway for immune-mediated disease in helminths and a possible role for intestinal worms in the gut-lung axis.
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Affiliation(s)
- Ruohang Sun
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jing Ding
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yaming Yang
- Department of Helminth, Yunnan Institute of Parasitic Diseases, Puer, China
| | - Fangwei Wu
- Department of Helminth, Yunnan Institute of Parasitic Diseases, Puer, China
| | - Xuelin Wang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Mingyuan Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Xiaolei Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xuemin Jin
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China.
| | - Yi Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China.
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Yuan Y, Chen L. Clinical effect of perioperative stellate ganglion block on mechanical ventilation and respiratory function of elderly patients with septic shock. Medicine (Baltimore) 2024; 103:e38166. [PMID: 38788036 PMCID: PMC11124723 DOI: 10.1097/md.0000000000038166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 04/17/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND Here we investigated the effect of a stellate ganglion block on the perioperative mechanical ventilation and postoperative recovery of respiratory function of elderly patients with infectious shock. METHODS Thirty-six elderly patients with septic shock who underwent emergency general anesthesia at our hospital were randomly divided into treatment (T) and control (C) groups (n = 18 each). Group T received a preoperative stellate ganglion block, whereas group C received normal saline. Procalcitonin and C-reactive protein levels were compared preoperatively and at 1 and 7 days postoperative. Mean arterial pressure, oxygen saturation, and mean pulmonary artery pressure were measured preoperative and postoperative as well as at 1 and 7 days later. A blood gas analysis was performed preoperatively, at the end of the operation, during extubation, and at 1 and 7 days postoperative. Intubation under general anesthesia, the completion of anesthesia, and spontaneous respiratory recovery involve pulmonary dynamic compliance, plateau pressure, and mechanical ventilation. RESULTS General condition did not differ significantly between groups (P > .05). However, mean arterial pressure at the end of surgery and at 1 and 7 days postoperative were significantly higher in group T versus C (P < .05). Furthermore, mean oxygen saturation at the end of surgery and at 1 and 7 days postoperative was significantly lower in group T versus C (P < .05), while procalcitonin and C-reactive protein levels were significantly lower at 1 and 7 days postoperative. Group T had significantly better arterial partial pressure of carbon dioxide, partial pressure of oxygen, and partial pressure of oxygen/fraction of inspired oxygen than group C at the end of surgery, during extubation, and at 1 and 7 days postoperative (P < .05). CONCLUSION Group T exhibited superior inflammatory responses and respiratory function. Stellate ganglion block in elderly patients with septic shock reduces inflammation, improves mechanical ventilation perioperatively, and promotes postoperative recovery and respiratory function.
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Affiliation(s)
- Yingchuan Yuan
- Department of Anesthesiology, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Lu Chen
- Department of Anesthesiology, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, China
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11
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Ma DB, Zhang H, Wang XL, Wu QG. METTL3 aggravates cell damage induced by Streptococcus pneumoniae via the NEAT1/CTCF/MUC19 axis. Kaohsiung J Med Sci 2024. [PMID: 38757482 DOI: 10.1002/kjm2.12843] [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: 03/05/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/18/2024] Open
Abstract
Disruption of the alveolar barrier can trigger acute lung injury. This study elucidated the association of methyltransferase-like 3 (METTL3) with Streptococcus pneumoniae (SP)-induced apoptosis and inflammatory injury of alveolar epithelial cells (AECs). AECs were cultured and then infected with SP. Furthermore, the expression of METTL3, interleukin (IL)-10, IL-6, tumor necrosis factor-alpha (TNF-α), monocyte chemoattractant protein-1 (MCP-1), long noncoding RNA nuclear paraspeckle assembly transcript 1 (NEAT1), mucin 19 (MUC19), N6-methyladenosine (m6A), and NEAT1 after m6A modification were detected by qRT-PCR, Western blot, and enzyme-linked immunosorbent, m6A quantification, and methylated RNA immunoprecipitation-qPCR analyses, respectively. Moreover, the subcellular localization of NEAT1 was analyzed by nuclear/cytosol fractionation assay, and the binding between NEAT1 and CCCTC-binding factor (CTCF) was also analyzed. The results of this investigation revealed that SP-induced apoptosis and inflammatory injury in AECs and upregulated METTL3 expression. In addition, the downregulation of METTL3 alleviated apoptosis and inflammatory injury in AECs. METTL3-mediated m6A modification increased NEAT1 and promoted its binding with CTCF to facilitate MUC19 transcription. NEAT1 or MUC19 overexpression disrupted their protective role of silencing METTL3 in AECs, thereby increasing apoptosis and inflammatory injury. In conclusion, this is the first study to suggest that METTL3 aggravates SP-induced cell damage via the NEAT1/CTCF/MUC19 axis.
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Affiliation(s)
- Dong-Bo Ma
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Hui Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Xi-Ling Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Qiu-Ge Wu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
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12
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Paukner S, Kimber S, Cumper C, Rea-Davies T, Sueiro Ballesteros L, Kirkham C, Hargreaves A, Gelone SP, Richards C, Wicha WW. In Vivo Immune-Modulatory Activity of Lefamulin in an Influenza Virus A (H1N1) Infection Model in Mice. Int J Mol Sci 2024; 25:5401. [PMID: 38791439 PMCID: PMC11121702 DOI: 10.3390/ijms25105401] [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: 04/08/2024] [Revised: 05/07/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Lefamulin is a first-in-class systemic pleuromutilin antimicrobial and potent inhibitor of bacterial translation, and the most recent novel antimicrobial approved for the treatment of community-acquired pneumonia (CAP). It exhibits potent antibacterial activity against the most prevalent bacterial pathogens that cause typical and atypical pneumonia and other infectious diseases. Early studies indicate additional anti-inflammatory activity. In this study, we further investigated the immune-modulatory activity of lefamulin in the influenza A/H1N1 acute respiratory distress syndrome (ARDS) model in BALB/c mice. Comparators included azithromycin, an anti-inflammatory antimicrobial, and the antiviral oseltamivir. Lefamulin significantly decreased the total immune cell infiltration, specifically the neutrophils, inflammatory monocytes, CD4+ and CD8+ T-cells, NK cells, and B-cells into the lung by Day 6 at both doses tested compared to the untreated vehicle control group (placebo), whereas azithromycin and oseltamivir did not significantly affect the total immune cell counts at the tested dosing regimens. Bronchioalveolar lavage fluid concentrations of pro-inflammatory cytokines and chemokines including TNF-α, IL-6, IL-12p70, IL-17A, IFN-γ, and GM-CSF were significantly reduced, and MCP-1 concentrations were lowered (not significantly) by lefamulin at the clinically relevant 'low' dose on Day 3 when the viral load peaked. Similar effects were also observed for oseltamivir and azithromycin. Lefamulin also decreased the viral load (TCID50) by half a log10 by Day 6 and showed positive effects on the gross lung pathology and survival. Oseltamivir and lefamulin were efficacious in the suppression of the development of influenza-induced bronchi-interstitial pneumonia, whereas azithromycin did not show reduced pathology at the tested treatment regimen. The observed anti-inflammatory and immune-modulatory activity of lefamulin at the tested treatment regimens highlights a promising secondary pharmacological property of lefamulin. While these results require confirmation in a clinical trial, they indicate that lefamulin may provide an immune-modulatory activity beyond its proven potent antibacterial activity. This additional activity may benefit CAP patients and potentially prevent acute lung injury (ALI) and ARDS.
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Affiliation(s)
- Susanne Paukner
- Nabriva Therapeutics GmbH, Leberstrasse 20, 1110 Vienna, Austria;
| | - Sandra Kimber
- Charles River Discovery, Portishead BS20 7AW, UK; (S.K.); (C.C.); (T.R.-D.); (L.S.B.); (C.K.); (C.R.)
| | - Charlotte Cumper
- Charles River Discovery, Portishead BS20 7AW, UK; (S.K.); (C.C.); (T.R.-D.); (L.S.B.); (C.K.); (C.R.)
| | - Tina Rea-Davies
- Charles River Discovery, Portishead BS20 7AW, UK; (S.K.); (C.C.); (T.R.-D.); (L.S.B.); (C.K.); (C.R.)
| | - Lorena Sueiro Ballesteros
- Charles River Discovery, Portishead BS20 7AW, UK; (S.K.); (C.C.); (T.R.-D.); (L.S.B.); (C.K.); (C.R.)
| | - Christopher Kirkham
- Charles River Discovery, Portishead BS20 7AW, UK; (S.K.); (C.C.); (T.R.-D.); (L.S.B.); (C.K.); (C.R.)
| | | | | | - Claire Richards
- Charles River Discovery, Portishead BS20 7AW, UK; (S.K.); (C.C.); (T.R.-D.); (L.S.B.); (C.K.); (C.R.)
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13
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Xiao Y, Zhang B, Hou S, Shen X, Wu X, Liu R, Luo Y. Acacetin Attenuates Sepsis-induced Acute Lung Injury via NLRC3-NF-κB Pathway. Inflammation 2024:10.1007/s10753-024-02040-3. [PMID: 38739343 DOI: 10.1007/s10753-024-02040-3] [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: 02/20/2024] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 05/14/2024]
Abstract
Acacetin, a flavonoid derived compound has been recognized for its diverse biological activities, such as anti-oxidative and anti-inflammatory effects. Acute lung injury (ALI) is a severe condition characterized by respiratory insufficiency and tissue damage, commonly triggered by pneumonia and severe sepsis. These conditions induce an inflammatory response via Toll-like receptor 4 (TLR4) signaling activation. This study explored acacetin's therapeutic potential against lipopolysaccharide (LPS) induced ALI in mice, focusing on its ability to modulate the NF-κB pathway via regulation of the Nod-like receptor family CARD domain containing 3 (NLRC3), a signal sensor that plays an important role in the regulation of inflammation and the maintenance of homeostasis. Our findings revealed that high-dose acacetin reduced the mortality rate of ALI mice, significantly ameliorated LPS-induced lung pathological changes, reduced lung edema, and decreased the expression of inflammatory mediators in lung tissues. This protective impact of acacetin appears to stem form its capacity to enhance NLRC3 expression, which, intern, can inhibit the activation of NF-κB and subsequently inhibit the production of inflammatory mediators. NLRC3 deficiency inhibits the protective effect of acacetin on ALI mice. Molecular docking also verified that acacetin tightly bound acacetin to NLRC3. Additionally, acacetin was found to influence macrophage recruitment dynamics via NLRC3, inhibiting the overactivation of NLRC3-NF-κB related pathways. Taken together, our results indicate that acacetin inhibited LPS-induced acute lung injury and macrophage overrecruitment to the lungs in mice by upregulating NLRC3.
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Affiliation(s)
- Yingchou Xiao
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710000, China
| | - Bo Zhang
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710000, China
| | - Shiyuan Hou
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710000, China
| | - Xing Shen
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710000, China
| | - Xingan Wu
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710000, China.
| | - Rongrong Liu
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710000, China.
| | - Ying Luo
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710000, China.
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710000, China.
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14
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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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15
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Chang J, Gao X, Yang F, Qiang P, Fan L, Liu Z, Shimosawa T, Xu Q, Chang Y. Esaxerenone Inhibits Interferon-γ Induced Pyroptosis of Macrophages in the Lungs of Aldosterone-treated Mice. Inflammation 2024:10.1007/s10753-024-02030-5. [PMID: 38713304 DOI: 10.1007/s10753-024-02030-5] [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: 03/19/2024] [Revised: 04/08/2024] [Accepted: 04/16/2024] [Indexed: 05/08/2024]
Abstract
Lung immune cells such as lymphocytes and macrophages can induce an inflammatory response due to the activation of mineralocorticoid receptor (MR), which is manifested by the infiltration of inflammatory cells and the secretion of inflammatory cytokines and subsequent apoptosis, pyroptosis and necrosis of intrinsic lung cells and immune cells. Macrophages are immune cells that are abundant in the lung and act as the first line of defense against pathogens but are also aggravating factors of infection. The activation of the renin-angiotensin-aldosterone system (RAAS), especially aldosterone-stimulated MR activation, can induce macrophage and CD8+ T cell aggregation and the secretion of cytokines such as tumor necrosis factor-α (TNF-α) and interferon-gamma (IFN-γ). Increased IFN-γ secretion can induce macrophage pyroptosis and the release of interleukin 1-β (IL-1β), aggravating lung injury. In this study, lung injury in C57BL/6 mice was induced by subcutaneous micro-osmotic pump infusion of aldosterone. After 12 weeks of administration, the kidney, heart, blood vessels and lungs all showed obvious inflammatory injury, which manifested as rapid accumulation of macrophages. The overexpression of IFN-γ in the lungs of aldosterone-treated mice and the stimulation of MH-S and RAW264.7 alveolar macrophages (AMs) with aldosterone in vitro showed that IFN-γ induced pyroptosis of macrophages via the activation of the inflammasome, and the MR blocker esaxerenone effectively inhibited this effect and alleviated lung injury. In addition, IFN-γ secreted by CD8+ T cells is associated with macrophage pyroptosis. In conclusion, the inhibition of macrophage pyroptosis can effectively alleviate lung injury.
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Affiliation(s)
- Jingyue Chang
- Graduate School, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
| | - Xiaomeng Gao
- Graduate School, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
| | - Fan Yang
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
- Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
| | - Panpan Qiang
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
- Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
| | - Lili Fan
- Graduate School, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
| | - Ziqian Liu
- Graduate School, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China
| | - Tatsuo Shimosawa
- Department of Clinical Laboratory, School of Medicine, International University of Health and Welfare, Narita, 286-8686, Japan
| | - Qingyou Xu
- Graduate School, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China.
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China.
- Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China.
| | - Yi Chang
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China.
- Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, 050200, China.
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16
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Bondarev DJ, Ryan RM, Mukherjee D. The spectrum of pneumonia among intubated neonates in the neonatal intensive care unit. J Perinatol 2024:10.1038/s41372-024-01973-9. [PMID: 38698211 DOI: 10.1038/s41372-024-01973-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 02/17/2024] [Accepted: 04/15/2024] [Indexed: 05/05/2024]
Abstract
We review the pathophysiology, epidemiology, diagnosis, treatment, and prevention of ventilator-associated pneumonia (VAP) in neonates. VAP has been studied primarily in adult ICU patients, although there has been more focus on pediatric and neonatal VAP (neo-VAP) in the last decade. The definition as well as diagnosis of VAP in neonates remains a challenge to date. The neonatal intensivist needs to be familiar with the current diagnostic tools and prevention strategies available to treat and reduce VAP to reduce neonatal morbidity and the emergence of antibiotic resistance. This review also highlights preventive strategies and old and emerging treatments available.
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Affiliation(s)
- Dayle J Bondarev
- Division of Neonatology, Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Rita M Ryan
- Division of Neonatology, Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Devashis Mukherjee
- Division of Neonatology, Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, OH, USA.
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17
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Bandyopadhyay G, Jehrio MG, Baker C, Bhattacharya S, Misra RS, Huyck HL, Chu C, Myers JR, Ashton J, Polter S, Cochran M, Bushnell T, Dutra J, Katzman PJ, Deutsch GH, Mariani TJ, Pryhuber GS. Bulk RNA sequencing of human pediatric lung cell populations reveals unique transcriptomic signature associated with postnatal pulmonary development. Am J Physiol Lung Cell Mol Physiol 2024; 326:L604-L617. [PMID: 38442187 DOI: 10.1152/ajplung.00385.2023] [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: 12/07/2023] [Revised: 02/19/2024] [Accepted: 02/27/2024] [Indexed: 03/07/2024] Open
Abstract
Postnatal lung development results in an increasingly functional organ prepared for gas exchange and pathogenic challenges. It is achieved through cellular differentiation and migration. Changes in the tissue architecture during this development process are well-documented and increasing cellular diversity associated with it are reported in recent years. Despite recent progress, transcriptomic and molecular pathways associated with human postnatal lung development are yet to be fully understood. In this study, we investigated gene expression patterns associated with healthy pediatric lung development in four major enriched cell populations (epithelial, endothelial, and nonendothelial mesenchymal cells, along with lung leukocytes) from 1-day-old to 8-yr-old organ donors with no known lung disease. For analysis, we considered the donors in four age groups [less than 30 days old neonates, 30 days to < 1 yr old infants, toddlers (1 to < 2 yr), and children 2 yr and older] and assessed differentially expressed genes (DEG). We found increasing age-associated transcriptional changes in all four major cell types in pediatric lung. Transition from neonate to infant stage showed highest number of DEG compared with the number of DEG found during infant to toddler- or toddler to older children-transitions. Profiles of differential gene expression and further pathway enrichment analyses indicate functional epithelial cell maturation and increased capability of antigen presentation and chemokine-mediated communication. Our study provides a comprehensive reference of gene expression patterns during healthy pediatric lung development that will be useful in identifying and understanding aberrant gene expression patterns associated with early life respiratory diseases.NEW & NOTEWORTHY This study presents postnatal transcriptomic changes in major cell populations in human lung, namely endothelial, epithelial, mesenchymal cells, and leukocytes. Although human postnatal lung development continues through early adulthood, our results demonstrate that greatest transcriptional changes occur in first few months of life during neonate to infant transition. These early transcriptional changes in lung parenchyma are particularly notable for functional maturation and activation of alveolar type II cell genes.
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Affiliation(s)
- Gautam Bandyopadhyay
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
| | - Matthew G Jehrio
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
| | - Cameron Baker
- UR Genomics Research Center, University of Rochester Medical Center, Rochester, New York, United States
| | - Soumyaroop Bhattacharya
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
- Program in Pediatric Molecular and Personalized Medicine, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
| | - Ravi S Misra
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
| | - Heidie L Huyck
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
| | - ChinYi Chu
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
- Program in Pediatric Molecular and Personalized Medicine, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
| | - Jason R Myers
- UR Genomics Research Center, University of Rochester Medical Center, Rochester, New York, United States
| | - John Ashton
- UR Genomics Research Center, University of Rochester Medical Center, Rochester, New York, United States
| | - Steven Polter
- UR Flow Cytometry Core Facility, University of Rochester Medical Center, Rochester, New York, United States
| | - Matthew Cochran
- UR Flow Cytometry Core Facility, University of Rochester Medical Center, Rochester, New York, United States
| | - Timothy Bushnell
- UR Flow Cytometry Core Facility, University of Rochester Medical Center, Rochester, New York, United States
| | - Jennifer Dutra
- UR Clinical & Translational Science Institute Informatics, University of Rochester Medical Center, Rochester, New York, United States
| | - Philip J Katzman
- Department of Pathology, University of Rochester Medical Center, Rochester, New York, United States
| | - Gail H Deutsch
- Department of Pathology, Seattle Children's Hospital, Seattle, Washington, United States
| | - Thomas J Mariani
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
- Program in Pediatric Molecular and Personalized Medicine, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
| | - Gloria S Pryhuber
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States
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18
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Xiao M, Zhang P, Chen Z, Liu X, Wei W, He Z, Wang Y, Cheng J, Zhu Z, Wen J, Yang H. Adenosine diphosphate ribosylation factor 6 inhibition protects burn sepsis induced lung injury through preserving vascular integrity and suppressing ASC inflammasome transmission. Burns 2024; 50:913-923. [PMID: 38267288 DOI: 10.1016/j.burns.2024.01.009] [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: 06/21/2023] [Revised: 12/27/2023] [Accepted: 01/10/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND Severe burns are devastating injuries with significant immune dysfunction and result in substantial mortality and morbidity due to sepsis induced organ failure. Acute lung injury is the most common type of organ injury in sepsis, however, the mechanisms of which are poorly understood and effective therapeutic measures are limited. This study is aimed to investigate the effect of a small Guanosine triphosphatase (GTPase), Adenosine diphosphate ribosylation factor 6 (ARF6), on burn sepsis induced lung injury, and discuss the possible mechanisms. METHODS Burn sepsis was established in male C57BL/6 mice. Mice were anesthetised by intramuscular injection of ketamine and xylazine hydrochloride, then 30% TBSA full thickness burn followed by sub-eschar injection of lipopolysaccharide. Animals were treated with intraperitoneal injection of a small molecule inhibitor of ARF6: NAV-2729, or vehicle, right after the burn and sepsis stimuli were inflicted. Lung tissues were harvested for histopathological observation and the acute lung injury scores were calculated. Organ permeability, Vascular Endothelial Cadherin (VE-cadherin) expression, inflammatory cytokine levels and myeloperoxidase activity in lung tissues were detected. Rat pulmonary microvascular endothelial cells (PMVECs) were stimulated by burn sepsis serum with or without 10 μM NAV-2729. The ARF6 activation, VE-cadherin expression, inflammasome activity, adapter protein apoptosis speck-like protein containing a caspase recruiting domain (ASC) specks and cytokines secretion were determined. Student's t test was used for comparison between two groups. Multiple comparisons among groups were performed by using analysis of variance, with Tukey's test for the post hoc test. RESULTS NAV-2729 treatment attenuated burn sepsis induced lung injury and promoted survival of burn septic mice by preserving VE-cadherin expression in endothelial cell adherent junction and limited vascular hyperpermeability in lung tissues. Moreover, inflammatory cytokine expression and inflammatory injury in lung tissues were alleviated. Mechanistically, NAV-2729 enhanced vascular integrity by inhibiting ARF6 activation and restoring VE-cadherin expression in PMVECs. In addition, NAV-2729 inhibited ARF6-dependent phagocytosis of ASC specks, thus preventing inflammation propagation mediated by cell-to-cell transmission of ASC specks. CONCLUSIONS ARF6 inhibition preserved vascular integrity by restoring expression of VE-cadherin and suppressed the spread of inflammation by affecting phagocytosis of ASC specks, thus protected against sepsis induced lung injury and improve survival of burn septic animals. The findings of this study implied potential therapeutics by which ARF6 inhibition can protect lung function from septic induced lung injury and improve outcomes in burn sepsis.
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Affiliation(s)
- Mengjing Xiao
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
| | - Peirong Zhang
- Inpatient Ward 1, Songhe Nursing Home, 3 Yuenan Street, Huangsha Avenue, Liwan District, Guangzhou 510145, PR China.
| | - Zimiao Chen
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
| | - Xiaojie Liu
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
| | - Wei Wei
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
| | - Zhihao He
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
| | - Yao Wang
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
| | - Jian Cheng
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
| | - Zhen Zhu
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
| | - Jing Wen
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
| | - Hongming Yang
- Department of Burn Plastic and Cosmetic Surgery, South China Hospital Affiliated to Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen 518111, PR China.
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Wang J, Yue XQ, Li YT, Jiang M, Liu JC, Zhao ZG, Niu CY. ANALYSIS AND IDENTIFICATION OF FERROPTOSIS-RELATED GENE SIGNATURE FOR ACUTE LUNG INJURY. Shock 2024; 61:728-739. [PMID: 37878471 DOI: 10.1097/shk.0000000000002247] [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: 10/27/2023]
Abstract
ABSTRACT Background: Recent studies have shown that ferroptosis is involved in the evolution of acute lung injury (ALI), a serious respiratory pathological process leading to death. However, the regulatory mechanisms underlying ferroptosis in ALI remain largely unknown. The current study analyzed and identified a ferroptosis-related gene signature for ALI. Methods: Key genes associated with ferroptosis in ALI were identified by bioinformatics analysis. GSE104214, GSE18341, and GSE17355 datasets were downloaded from the Gene Expression Omnibus database. The signature genes were screened by least absolute shrinkage and selection operator regression, and the key genes of ALI were screened by weighted correlation network analysis (WGCNA), followed by immune infiltration analysis and functional enrichment analysis. In addition, mRNA expression of key genes in the lungs of mice with hemorrhagic shock (HS) and sepsis was verified. Results: A total of 2,132 differential genes were identified by various analyses, and 9 characteristic genes were detected using Lasso regression. We intersected nine signature genes with WGCNA module genes and finally determined four key genes ( PROK2 , IL6 , TNF , SLC7A11 ). All four key genes were closely correlated with immune cells and regulatory genes of ALI, and the expression of the four genes was significantly different in the lung tissues of HS and sepsis models. Besides, the ferroptosis-related molecules GPX4 and ACSL4 showed remarkable difference in these models. Conclusion: These results indicate that PROK2 , IL6 , TNF , and SLC7A11 may be key regulatory targets of ferroptosis during ALI. This study proved that ferroptosis is a common pathophysiological process in three ALI models.
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Affiliation(s)
- Jing Wang
- Department of Pathophysiology in Basic Medical College, Hebei Medical University, Shijiazhuang, China
| | - Xiao-Qi Yue
- Institute of Microcirculation, Basic Medical College, Hebei North University, Zhangjiakou, China
| | - Yu-Ting Li
- Institute of Microcirculation, Basic Medical College, Hebei North University, Zhangjiakou, China
| | - Miao Jiang
- Department of Pathophysiology in Basic Medical College, Hebei Medical University, Shijiazhuang, China
| | - Jun-Chao Liu
- The First Affiliated Hospital, Hebei North University, Zhangjiakou, China
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20
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Wang K, Huang H, Zhan Q, Ding H, Li Y. Toll-like receptors in health and disease. MedComm (Beijing) 2024; 5:e549. [PMID: 38685971 PMCID: PMC11057423 DOI: 10.1002/mco2.549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 03/17/2024] [Accepted: 03/26/2024] [Indexed: 05/02/2024] Open
Abstract
Toll-like receptors (TLRs) are inflammatory triggers and belong to a family of pattern recognition receptors (PRRs) that are central to the regulation of host protective adaptive immune responses. Activation of TLRs in innate immune myeloid cells directs lymphocytes to produce the most appropriate effector responses to eliminate infection and maintain homeostasis of the body's internal environment. Inappropriate TLR stimulation can lead to the development of general autoimmune diseases as well as chronic and acute inflammation, and even cancer. Therefore, TLRs are expected to be targets for therapeutic treatment of inflammation-related diseases, autoimmune diseases, microbial infections, and human cancers. This review summarizes the recent discoveries in the molecular and structural biology of TLRs. The role of different TLR signaling pathways in inflammatory diseases, autoimmune diseases such as diabetes, cardiovascular diseases, respiratory diseases, digestive diseases, and even cancers (oral, gastric, breast, colorectal) is highlighted and summarizes new drugs and related clinical treatments in clinical trials, providing an overview of the potential and prospects of TLRs for the treatment of TLR-related diseases.
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Affiliation(s)
- Kunyu Wang
- Department of Head and Neck Oncology Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Hanyao Huang
- Department of Oral and Maxillofacial Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuanChina
| | - Qi Zhan
- Department of Head and Neck Oncology Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Haoran Ding
- Department of Head and Neck Oncology Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Yi Li
- Department of Head and Neck Oncology Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
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Haynes ME, Sullivan DP, Muller WA. Neutrophil Infiltration and Function in the Pathogenesis of Inflammatory Airspace Disease. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:628-636. [PMID: 38309429 DOI: 10.1016/j.ajpath.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/07/2023] [Accepted: 12/21/2023] [Indexed: 02/05/2024]
Abstract
Neutrophils are an important cell type often considered the body's first responders to inflammatory insult or damage. They are recruited to the tissue of the lungs in patients with inflammatory airspace diseases and have unique and complex functions that range from helpful to harmful. The uniqueness of these functions is due to the heterogeneity of the inflammatory cascade and retention in the vasculature. Neutrophils are known to marginate, or remain stagnant, in the lungs even in nondisease conditions. This review discusses the ways in which the recruitment, presence, and function of neutrophils in the airspace of the lungs are unique from those of other tissues, and the complex effects of neutrophils on pathogenesis. Inflammatory mediators produced by neutrophils, such as neutrophil elastase, proresolving mediators, and neutrophil extracellular traps, dramatically affect the outcomes of patients with disease of the lungs.
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Affiliation(s)
- Maureen E Haynes
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - David P Sullivan
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - William A Muller
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
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Qing C, Wu Y, Liu B, Wang C, Zeng Z. Ameliorative Effect of Morinda Officinalis Oligosaccharides on LPS-Induced Acute Lung Injury. Chem Biodivers 2024; 21:e202400506. [PMID: 38507138 DOI: 10.1002/cbdv.202400506] [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: 02/27/2024] [Revised: 03/19/2024] [Accepted: 03/25/2024] [Indexed: 03/22/2024]
Abstract
Acute lung injury (ALI) is a disease characterized by extensive lung damage and rampant inflammation, with a high mortality rate and no effective treatments available. Morinda officinalis oligosaccharides (MOOs), derived from the root of the traditional Chinese medicinal herb Morinda officinalis, known for its immune-boosting properties, presents a novel therapeutic possibility. To date, the impact of MOOs on ALI has not been explored. Our study aimed to investigate the potential protective effects of MOOs against ALI and to uncover the underlying mechanisms through an integrated approach of network pharmacology, molecular docking, and experimental validation. We discovered that MOOs significantly mitigated the pathological damage and decreased the expression of pro-inflammatory cytokines in LPS-induced ALI in mice. Complementary in vitro studies further demonstrated that MOOs effectively attenuated the M1 polarization induced by LPS. Network pharmacology analysis identified HSP90AA1, HSP90AB1, and NF-κB as key overlapping targets within a protein-protein interaction (PPI) network. Furthermore, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses elucidated the biological processes and signaling pathways implicated in MOOs' therapeutic action on ALI. Subsequently, molecular docking affirmed the binding of MOOs to the active sites of these identified targets. Corroborating these findings, our in vivo and in vitro experiments consistently demonstrated that MOOs significantly inhibited the LPS-induced upregulation of HSP90 and NF-κB. Collectively, these findings suggest that MOOs confer protection against ALI through a multi-target, multi-pathway mechanism, offering a promising new therapeutic strategy to mitigate this severe pulmonary condition.
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Affiliation(s)
- Cheng Qing
- Department of Critical Care Medicine, Medical Center of Anesthesiology and Pain, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Key Laboratory of Critical Care Medicine, Jiangxi Provincial Health Commission, Nanchang, 330000, China
- Nanchang Key Laboratory of Diagnosis of Infectious Diseases of Nanchang University, Nanchang, 330096, China
| | - Yanrong Wu
- Department of Ophthalmology, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Binbin Liu
- Department of Critical Care Medicine, Nanchang Hongdu Hospital of Traditional Chinese Medicine Nanchang, Nanchang, 330000, China
| | - Cheng Wang
- Department of Critical Care Medicine, Medical Center of Anesthesiology and Pain, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Key Laboratory of Critical Care Medicine, Jiangxi Provincial Health Commission, Nanchang, 330000, China
| | - Zhenguo Zeng
- Department of Critical Care Medicine, Medical Center of Anesthesiology and Pain, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, China
- Key Laboratory of Critical Care Medicine, Jiangxi Provincial Health Commission, Nanchang, 330000, China
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Wang Y, Wang L, Ma S, Cheng L, Yu G. Repair and regeneration of the alveolar epithelium in lung injury. FASEB J 2024; 38:e23612. [PMID: 38648494 DOI: 10.1096/fj.202400088r] [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: 01/13/2024] [Revised: 03/01/2024] [Accepted: 04/02/2024] [Indexed: 04/25/2024]
Abstract
Considerable progress has been made in understanding the function of alveolar epithelial cells in a quiescent state and regeneration mechanism after lung injury. Lung injury occurs commonly from severe viral and bacterial infections, inhalation lung injury, and indirect injury sepsis. A series of pathological mechanisms caused by excessive injury, such as apoptosis, autophagy, senescence, and ferroptosis, have been studied. Recovery from lung injury requires the integrity of the alveolar epithelial cell barrier and the realization of gas exchange function. Regeneration mechanisms include the participation of epithelial progenitor cells and various niche cells involving several signaling pathways and proteins. While alveoli are damaged, alveolar type II (AT2) cells proliferate and differentiate into alveolar type I (AT1) cells to repair the damaged alveolar epithelial layer. Alveolar epithelial cells are surrounded by various cells, such as fibroblasts, endothelial cells, and various immune cells, which affect the proliferation and differentiation of AT2 cells through paracrine during alveolar regeneration. Besides, airway epithelial cells also contribute to the repair and regeneration process of alveolar epithelium. In this review, we mainly discuss the participation of epithelial progenitor cells and various niche cells involving several signaling pathways and transcription factors.
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Affiliation(s)
- Yaxuan Wang
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
| | - Lan Wang
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
| | - Shuaichen Ma
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
| | - Lianhui Cheng
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
| | - Guoying Yu
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
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Yu C, Li Y, Li Y, Li S, Zeng F, Yu J, Ji Z, Li K, Zhai H. A novel mechanism for regulating lung immune homeostasis: Zukamu granules alleviated acute lung injury in mice by inhibiting NLRP3 inflammasome activation and regulating Th17/Treg cytokine balance. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117831. [PMID: 38280662 DOI: 10.1016/j.jep.2024.117831] [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: 11/28/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 01/29/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acute lung injury (ALI) is a severely acute lung inflammation with high morbidity and mortality. Zukamu granules (ZKMG) is one of the Uygur patent drugs commonly used in clinic, which is included in the National Essential Drugs List (2018 edition). Clinical studies have shown that ZKMG has a significant effect on acute upper respiratory tract infection, and has better anti-inflammatory and antipyretic effects. However, the immunomodulatory mechanism of ZKMG on ALI is still not clear. AIM OF THE STUDY The aim of this study is to investigate the lung protective effect and immunomodulatory mechanism of ZKMG on lipopolysaccharide (LPS) -induced ALI mice, and to provide an important basis for the treatment strategy and theoretical basis of ALI. MATERIALS AND METHODS First, network pharmacology was used to predict the potential signaling pathways and biological processes of ZKMG related to immunology. Molecular docking technique was used to predict the possibility between the core components of ZKMG acting on NLRP3 protein. In addition, protein levels of F4/80 in lung tissues were assessed by Immunohistochemistry (IHC). The contents of IL-1β, IL-18, IL-17A and IL-10 in the lung tissue and serum, MPO in the lung tissue were detected by enzyme-linked immunosorbent assay (ELISA). Real-time quantitative PCR analysis (RT-qPCR) was used to detect NLRP3 mRNA in lung tissue. Protein levels of NLRP3, Caspase-1, Cleaved caspase-1 p20, ASC, and GSDMD were detected by Western blot (WB). RESULTS The results of network pharmacology showed that the immune pathways of ZKMG were mainly Th17 signaling pathway, IL-17 signaling pathway, NOD-like receptor signaling pathway, etc. Molecular docking results showed that the core components of ZKMG had good binding ability to NLRP3 protein. The verification experiments showed that ZKMG can reduce the degree of lung injury, and reduce the level of inflammatory infiltration of neutrophils and macrophages by reducing the content of MPO and F4/80. In addition, ZKMG can reduce NLRP3 mRNA, inhibit the expression of NLRP3/Caspase-1/GSDMD and other related pathway proteins, and reduce inflammatory factors such as IL-1β and IL-18. It can also reduce the content of pro-inflammatory cytokine IL-17A, increase the content of anti-inflammatory cytokine IL-10 in lung tissue. CONCLUSION ZKMG can reduce the degree of lung tissue injury in ALI by inhibiting NLRP3/Caspase-1/GSDMD signaling pathway and restoring the IL-17A/IL-10 cytokine balance, and its protective mechanism may be related to the regulation of lung immune homeostasis. It will provide a new strategy for studying the regulation of lung immune homeostasis.
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Affiliation(s)
- Chenqian Yu
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Yanan Li
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Yixuan Li
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Siyu Li
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Fengping Zeng
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Jing Yu
- Institute of Traditional Uygur Medicine, Xinjiang Medical University, Urumqi, 830011, China
| | - Zhihong Ji
- New Cicon Pharmaceutical Co. LTD., Urumchi, 830001, China
| | - Keao Li
- New Cicon Pharmaceutical Co. LTD., Urumchi, 830001, China
| | - Huaqiang Zhai
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China; Institute of Traditional Uygur Medicine, Xinjiang Medical University, Urumqi, 830011, China.
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25
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Wen Z, Fan J, Zhan F, Li X, Li B, Lu P, Yao X, Shen Z, Liu Z, Wang C, Li X, Jin W, Zhang X, Qi Y, Wang X, Song M. The role of FPR2-mediated ferroptosis in formyl peptide-induced acute lung injury against endothelial barrier damage and protective effect of the mitochondria-derived peptide MOTS-c. Int Immunopharmacol 2024; 131:111911. [PMID: 38527401 DOI: 10.1016/j.intimp.2024.111911] [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: 01/09/2024] [Revised: 02/19/2024] [Accepted: 03/19/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND Acute lung injury (ALI) has garnered significant attention in the field of respiratory and critical care due to its high mortality and morbidity, and limited treatment options. The role of the endothelial barrier in the development of ALI is crucial. Several bacterial pathogenic factors, including the bacteria-derived formyl peptide (fMLP), have been implicated in damaging the endothelial barrier and initiating ALI. However, the mechanism by which fMLP causes ALI remains unclear. In this study, we aim to explore the mechanisms of ALI caused by fMLP and evaluate the protective effects of MOTS-c, a mitochondrial-derived peptide. METHODS We established a rat model of ALI and a human pulmonary microvascular endothelial cell (HPMVEC) model of ALI by treatment with fMLP. In vivo experiments involved lung histopathology assays, assessments of inflammatory and oxidative stress factors, and measurements of ferroptosis-related proteins and barrier proteins to evaluate the severity of fMLP-induced ALI and the type of tissue damage in rats. In vitro experiments included evaluations of fMLP-induced damage on HPMVEC using cell activity assays, assessments of inflammatory and oxidative stress factors, measurements of ferroptosis-related proteins, endothelial barrier function assays, and examination of the key role of FPR2 in fMLP-induced ALI. We also assessed the protective effect of MOTS-c and investigated its mechanism on the fMLP-induced ALI in vivo and in vitro. RESULTS Results from both in vitro and in vivo experiments demonstrate that fMLP promotes the expression of inflammatory and oxidative stress factors, activates ferroptosis and disrupts the vascular endothelial barrier, ultimately contributing to the development and progression of ALI. Mechanistically, ferroptosis mediated by FPR2 plays a key role in fMLP-induced injury, and the Nrf2 and MAPK pathways are involved in this process. Knockdown of FPR2 and inhibition of ferroptosis can attenuate ALI induced by fMLP. Moreover, MOTS-c could protect the vascular endothelial barrier function by inhibiting ferroptosis and suppressing the expression of inflammatory and oxidative stress factors through Nrf2 and MAPK pathways, thereby alleviating fMLP-induced ALI. CONCLUSION Overall, fMLP disrupts the vascular endothelial barrier through FPR2-mediated ferroptosis, leading to the development and progression of ALI. MOTS-c demonstrates potential as a protective treatment against ALI by alleviating the damage induced by fMLP.
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Affiliation(s)
- Ziang Wen
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Jidan Fan
- Department of Cardiovascular Surgery, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu 225300, China
| | - Faliang Zhan
- Department of Cardiothoracic Surgery, Yili Friendship Hospital, Yining, Xinjiang Uyghur Autonomous Region 839300, China
| | - Xiaopei Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Ben Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Peng Lu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Xin Yao
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Zihao Shen
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Zhaoyang Liu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Chufan Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Xiangyu Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Wanjun Jin
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Xiao Zhang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Yuanpu Qi
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
| | - Xiaowei Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China; Department of Cardiovascular Surgery, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu 225300, China
| | - Meijuan Song
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
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Liu W, Zhou D, Zhang L, Huang M, Quan R, Xia R, Ye Y, Zhang G, Shen Z. Characteristics and outcomes of cancer patients admitted to intensive care units in cancer specialized hospitals in China. J Cancer Res Clin Oncol 2024; 150:205. [PMID: 38642154 PMCID: PMC11032264 DOI: 10.1007/s00432-024-05727-0] [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: 02/04/2024] [Accepted: 03/25/2024] [Indexed: 04/22/2024]
Abstract
PURPOSE Standard intensive care unit (ICU) admission policies and treatment strategies for patients with cancer are still lacking. To depict the current status of admission, characteristics, and outcomes of patients with cancer in the ICU. METHODS A multicenter cross-sectional study was performed from May 10, 2021 to July 10, 2021, in the ICU departments of 37 cancer-specialized hospitals in China. Clinical records of all admitted patients aged ≥ 14 years and ICU duration > 24 h with complete data were included. Demographic information, clinical history, severity score at admission, ICU critical condition diagnosis and treatment, ICU and in-hospital outcomes and 90 days survival were also collected. A total of 1455 patients were admitted and stayed for longer than 24 h. The most common primary cancer diagnoses included lung, colorectal, esophageal, and gastric cancer. RESULTS Patients with lung cancer were admitted more often because of worsening complications that occurred in the clinical ward. However, other cancer patients may be more likely to be admitted to the ICU because of postoperative care. ICU-admitted patients with lung or esophageal cancer tended to have more ICU complications. Patients with lung cancer had a poor overall survival prognosis, whereas patients with colorectal cancer appeared to benefit the most according to 90 days mortality rates. CONCLUSION Patients with lung cancer require more ICU care due to critical complications and the overall survival prognosis is poor. Colorectal cancer may benefit more from ICU management. This information may be considered in ICU admission and treatment strategies.
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Affiliation(s)
- Wensheng Liu
- Department of Intensive Care Unit, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Zhejiang Cancer Hospital, No. 1 East Banshan Road, Hangzhou, 310022, China
| | - Dongmin Zhou
- Department of Intensive Care Unit, Henan Cancer Hospital, Zhengzhou, China
| | - Li Zhang
- Department of Intensive Care Unit, Hubei Cancer Hospital, Wuhan, China
| | - Mingguang Huang
- Department of Intensive Care Unit, Shanxi Province Cancer Hospital, Taiyuan, China
| | - Rongxi Quan
- Department of Intensive Care Unit, Cancer Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Rui Xia
- Department of Intensive Care Unit, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yong Ye
- Department of Intensive Care Unit, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Guoxing Zhang
- Department of Intensive Care Unit, Gaoxin District of Jilin Cancer Hospital, Changchun, China
| | - Zhuping Shen
- Department of Intensive Care Unit, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Zhejiang Cancer Hospital, No. 1 East Banshan Road, Hangzhou, 310022, China.
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Xu X, Xu X, Cao J, Ruan L. MicroRNA-1258 suppresses oxidative stress and inflammation in septic acute lung injury through the Pknox1-regulated TGF-β1/SMAD3 cascade. Clinics (Sao Paulo) 2024; 79:100354. [PMID: 38640751 PMCID: PMC11031721 DOI: 10.1016/j.clinsp.2024.100354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/16/2024] [Accepted: 03/18/2024] [Indexed: 04/21/2024] Open
Abstract
AIM The study was to clarify the mechanism of miR-1258 targeting Prep1 (pKnox1) to control Transforming Growth Factor β1 (TGF-β1)/SMAD3 pathway in septic Acute Lung Injury (ALI)-induced oxidative stress and inflammation. METHODS BEAS-2B cells and C57BL/6 mice were used to make in vitro and in vivo septic ALI models, respectively. miR-1258 expression was checked by RT-qPCR. After transfection in the in vitro experimental model, inflammation, oxidative stress, viability, and apoptosis were observed through ELISA, MTT, and flow cytometry. RESULTS In the in vivo model after miR-1258 overexpression treatment, inflammation, oxidative stress, and lung injury were further investigated. The targeting relationship between miR-1258 and Pknox1 was tested. Low miR-1258 was expressed in septic ALI patients, LPS-treated BEAS-2B cells, and mice. Upregulated miR-1258 prevented inflammation, oxidative stress, and apoptosis but enhanced the viability of LPS-treated BEAS-2B cells. The impact of upregulated miR-1258 on LPS-treated BEAS-2B cells was mitigated by inhibiting Pknox1 expression. MiR-1258 overexpression had the alleviating effects on inflammation, oxidative stress, and lung injury of LPS-injured mice through suppressing Pknox1 expression and TGF-β1/SMAD3 cascade activation. CONCLUSIONS The study concludes that miR-1258 suppresses oxidative stress and inflammation in septic ALI through the Pknox1-regulated TGF-β1/SMAD3 cascade.
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Affiliation(s)
- XiaoMeng Xu
- Guangzhou Hospital of Integrated Traditional and West Medicine, Department of Anesthesiology, Guangzhou City, Guangdong Province, China
| | - XiaoHong Xu
- Guangzhou Hospital of Integrated Traditional and West Medicine, Department of Pediatrics, Guangzhou City, Guangdong Province, China
| | - JinLiang Cao
- Guangzhou Hospital of Integrated Traditional and West Medicine, Department of Anesthesiology, Guangzhou City, Guangdong Province, China
| | - LuoYang Ruan
- Guangzhou Hospital of Integrated Traditional and West Medicine, Department of Anesthesiology, Guangzhou City, Guangdong Province, China.
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Xu Y, Xin J, Sun Y, Wang X, Sun L, Zhao F, Niu C, Liu S. Mechanisms of Sepsis-Induced Acute Lung Injury and Advancements of Natural Small Molecules in Its Treatment. Pharmaceuticals (Basel) 2024; 17:472. [PMID: 38675431 PMCID: PMC11054595 DOI: 10.3390/ph17040472] [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: 03/13/2024] [Revised: 04/02/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Sepsis-induced acute lung injury (ALI), characterized by widespread lung dysfunction, is associated with significant morbidity and mortality due to the lack of effective pharmacological treatments available clinically. Small-molecule compounds derived from natural products represent an innovative source and have demonstrated therapeutic potential against sepsis-induced ALI. These natural small molecules may provide a promising alternative treatment option for sepsis-induced ALI. This review aims to summarize the pathogenesis of sepsis and potential therapeutic targets. It assembles critical updates (from 2014 to 2024) on natural small molecules with therapeutic potential against sepsis-induced ALI, detailing their sources, structures, effects, and mechanisms of action.
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Affiliation(s)
- Yaxi Xu
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Jianzeng Xin
- School of Life Sciences, Yantai University, Yantai 264005, China;
| | - Yupei Sun
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Xuyan Wang
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Lili Sun
- College of Pharmacy, University of Utah, Salt Lake City, UT 84108, USA;
| | - Feng Zhao
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Changshan Niu
- College of Pharmacy, University of Utah, Salt Lake City, UT 84108, USA;
| | - Sheng Liu
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
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Shen M, You Y, Xu C, Chen Z. Epigallocatechin-3-Gallate attenuates lipopolysacharide-induced pneumonia via modification of inflammation, oxidative stress, apoptosis, and autophagy. BMC Complement Med Ther 2024; 24:147. [PMID: 38580929 PMCID: PMC10996149 DOI: 10.1186/s12906-024-04436-y] [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: 01/10/2024] [Accepted: 03/14/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND Pneumonia, the acute inflammation of lung tissue, is multi-factorial in etiology. Hence, continuous studies are conducted to determine the mechanisms involved in the progression of the disease and subsequently suggest effective treatment. The present study attempted to evaluate the effects of Epigallocatechin-3-Gallate (EGCG), an herbal antioxidant, on inflammation, oxidative stress, apoptosis, and autophagy in a rat pneumonia model. METHODS Forty male Wistar rats, 5 months old and 250-290 g were divided into four groups including control, EGCG, experimental pneumonia (i/p LPS injection, 1 mg/kg), and experimental pneumonia treated with EGCG (i/p, 15 mg/kg, 1 h before and 3 h after LPS instillation). Total cell number in the bronchoalveolar lavage fluid, inflammation (TNF-a, Il-6, IL-1β, and NO), oxidative stress (Nrf2, HO-1, SOD, CAT, GSH, GPX, MDA, and TAC), apoptosis (BCL-2, BAX, CASP-3 and CASP-9), and autophagy (mTOR, LC3, BECN1) were evaluated. RESULTS The findings demonstrated that EGCG suppresses the LPS-induced activation of inflammatory pathways by a significant reduction of inflammatory markers (p-value < 0.001). In addition, the upregulation of BCL-2 and downregulation of BAX and caspases revealed that EGCG suppressed LPS-induced apoptosis. Furthermore, ECGC suppressed oxidative injury while promoting autophagy in rats with pneumonia (p-value < 0.05). CONCLUSION The current study revealed that EGCG could suppress inflammation, oxidative stress, apoptosis, and promote autophagy in experimental pneumonia models of rats suggesting promising therapeutical properties of this compound to be used in pneumonia management.
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Affiliation(s)
- Meili Shen
- Pediatric Critical Care Medicine Department, Quanzhou Children's Hospital (Quanzhou Maternal and Child Health Hospital), Fengze District, Quanzhou City, Fujian Province, 362000, China.
| | - Yuting You
- Children's Respiratory Department, Quanzhou Children's Hospital (Quanzhou Maternal and Child Health Hospital), Fengze District, Quanzhou City, Fujian Province, 362000, China
| | - Chengna Xu
- Pediatric Critical Care Medicine Department, Quanzhou Children's Hospital (Quanzhou Maternal and Child Health Hospital), Fengze District, Quanzhou City, Fujian Province, 362000, China
| | - Zhixu Chen
- Pediatric Critical Care Medicine Department, Quanzhou Children's Hospital (Quanzhou Maternal and Child Health Hospital), Fengze District, Quanzhou City, Fujian Province, 362000, China
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Darkwah S, Kotey FCN, Ahenkorah J, Adutwum-Ofosu KK, Donkor ES. Sepsis-Related Lung Injury and the Complication of Extrapulmonary Pneumococcal Pneumonia. Diseases 2024; 12:72. [PMID: 38667530 PMCID: PMC11049144 DOI: 10.3390/diseases12040072] [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: 10/03/2023] [Revised: 11/18/2023] [Accepted: 11/26/2023] [Indexed: 04/28/2024] Open
Abstract
Globally, sepsis and pneumonia account for significant mortality and morbidity. A complex interplay of immune-molecular pathways underlies both sepsis and pneumonia, resulting in similar and overlapping disease characteristics. Sepsis could result from unmanaged pneumonia. Similarly, sepsis patients have pneumonia as a common complication in the intensive care unit. A significant percentage of pneumonia is misdiagnosed as septic shock. Therefore, our knowledge of the clinical relationship between pneumonia and sepsis is imperative to the proper management of these syndromes. Regarding pathogenesis and etiology, pneumococcus is one of the leading pathogens implicated in both pneumonia and sepsis syndromes. Growing evidence suggests that pneumococcal pneumonia can potentially disseminate and consequently induce systemic inflammation and severe sepsis. Streptococcus pneumoniae could potentially exploit the function of dendritic cells (DCs) to facilitate bacterial dissemination. This highlights the importance of pathogen-immune cell crosstalk in the pathophysiology of sepsis and pneumonia. The role of DCs in pneumococcal infections and sepsis is not well understood. Therefore, studying the immunologic crosstalk between pneumococcus and host immune mediators is crucial to elucidating the pathophysiology of pneumonia-induced lung injury and sepsis. This knowledge would help mitigate clinical diagnosis and management challenges.
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Affiliation(s)
- Samuel Darkwah
- Department of Medical Microbiology, University of Ghana Medical School, Accra P.O. Box KB 4236, Ghana; (F.C.N.K.); (E.S.D.)
| | - Fleischer C. N. Kotey
- Department of Medical Microbiology, University of Ghana Medical School, Accra P.O. Box KB 4236, Ghana; (F.C.N.K.); (E.S.D.)
| | - John Ahenkorah
- Department of Anatomy, University of Ghana Medical School, Accra P.O. Box KB 4236, Ghana; (J.A.); (K.K.A.-O.)
| | - Kevin Kofi Adutwum-Ofosu
- Department of Anatomy, University of Ghana Medical School, Accra P.O. Box KB 4236, Ghana; (J.A.); (K.K.A.-O.)
| | - Eric S. Donkor
- Department of Medical Microbiology, University of Ghana Medical School, Accra P.O. Box KB 4236, Ghana; (F.C.N.K.); (E.S.D.)
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Fang J, Huang Q, Shi C, Gai L, Wang X, Yan B. Songorine inhibits oxidative stress-related inflammation through PI3K/AKT/NRF2 signaling pathway to alleviate lipopolysaccharide-induced septic acute lung injury. Immunopharmacol Immunotoxicol 2024; 46:152-160. [PMID: 37977206 DOI: 10.1080/08923973.2023.2281902] [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: 03/09/2023] [Accepted: 11/04/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVE The present study aimed to investigate the protective action and mechanism of songorine on sepsis-induced acute lung injury (ALI). METHODS The sepsis-induced ALI mouse and cell models were established by lipopolysaccharide (LPS) induction. Lung injury was assayed by hematoxylin and eosin staining, lung injury score, and lung wet-to-dry (W/D) weight ratio. Apoptosis in lung tissues was evaluated by TUNEL assay, and the expression of apoptosis-related markers (Bcl2, Bax, and caspase-3) was measured by western blotting. Levels of pro-inflammatory factors and oxidative stress markers in the bronchoalveolar lavage fluid (BALF) of mice were measured by ELISA and RT-qPCR. The expression of PI3K/AKT/NRF2 pathway-related proteins was analyzed by western blotting. RESULTS Songorine treatment at 40 mg/kg mitigated sepsis-induced ALI, characterized by improved histopathology, lung injury score, and lung W/D weight ratio (p < 0.05). Moreover, songorine markedly attenuated sepsis-induced apoptosis in lung tissues; this was evidenced by an increase in Bcl2 levels and a decrease in Bax and caspase-3 levels (p < 0.01). Also, songorine reduced levels of proinflammatory cytokines (TNF-α, IL-6, IL-1β and MPO) and oxidative stress regulators (SOD and GSH) in the BALF of LPS-induced sepsis mice and RAW264.7 cells (p < 0.05). In addition, songorine upregulated the PI3K/AKT/NRF2 pathway-related proteins in LPS-induced sepsis mice and RAW264.7 cells (p < 0.05). Furthermore, LY294002 (a PI3K inhibitor) treatment reversed the protective effect of songorine on sepsis-induced ALI. CONCLUSION Songorine inhibits oxidative stress-related inflammation in sepsis-induced ALI via the activation of the PI3K/AKT/NRF2 signaling pathway.
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Affiliation(s)
- Jingjing Fang
- Department of Critical Care Medicine, the First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Qin Huang
- Department of Critical Care Medicine, the First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Chaolu Shi
- Department of Critical Care Medicine, the First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Lei Gai
- Department of Critical Care Medicine, the First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Xinnian Wang
- Department of Critical Care Medicine, the First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Biqing Yan
- Department of Critical Care Medicine, the First Affiliated Hospital of Ningbo University, Ningbo, China
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Colvin KL, Wolter-Warmerdam K, Hickey F, Yeager ME. Altered peripheral blood leukocyte subpopulations, function, and gene expression in children with Down syndrome: implications for respiratory tract infection. Eur J Med Genet 2024; 68:104922. [PMID: 38325643 DOI: 10.1016/j.ejmg.2024.104922] [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: 06/06/2023] [Revised: 12/12/2023] [Accepted: 02/04/2024] [Indexed: 02/09/2024]
Abstract
OBJECTIVES We tested the hypothesis that aberrant expression of Hsa21-encoded interferon genes in peripheral blood immune cells would correlate to immune cell dysfunction in children with Down syndrome (DS). STUDY DESIGN We performed flow cytometry to quantify peripheral blood leukocyte subtypes and measured their ability to migrate and phagocytose. In matched samples, we measured gene expression levels for constituents of interferon signaling pathways. We screened 49 children, of which 29 were individuals with DS. RESULTS We show that the percentages of two peripheral blood myeloid cell subtypes (alternatively-activated macrophages and low-density granulocytes) in children with DS differed significantly from typical children, children with DS circulate a very different pattern of cytokines vs. typical individuals, and higher expression levels of type III interferon receptor Interleukin-10Rb in individuals with DS correlated with reduced migratory and phagocytic capacity of macrophages. CONCLUSIONS Increased susceptibility to severe and chronic infection in children with DS may result from inappropriate numbers and subtypes of immune cells that are phenotypically and functionally altered due to trisomy 21 associated interferonopathy.
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Affiliation(s)
- Kelley L Colvin
- Department of Bioengineering, University of Colorado Denver, Aurora, USA; Linda Crnic Institute for Down Syndrome, University of Colorado Denver, Aurora, USA
| | | | - Francis Hickey
- Anna and John J. Sie Center for Down Syndrome, Children's Hospital Colorado, Aurora, USA; Department of Pediatrics, University of Colorado School of Medicine, Aurora, USA
| | - Michael E Yeager
- Department of Bioengineering, University of Colorado Denver, Aurora, USA; Linda Crnic Institute for Down Syndrome, University of Colorado Denver, Aurora, USA.
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Han X, Ding W, Qu G, Li Y, Wang P, Yu J, Liu M, Chen X, Xie S, Feng J, Xu S. Danshensu methyl ester attenuated LPS-induced acute lung injury by inhibiting TLR4/NF-κB pathway. Respir Physiol Neurobiol 2024; 322:104219. [PMID: 38242336 DOI: 10.1016/j.resp.2024.104219] [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: 11/21/2023] [Revised: 01/14/2024] [Accepted: 01/14/2024] [Indexed: 01/21/2024]
Abstract
Acute Lung Injury (ALI) manifests as an acute exacerbation of pulmonary inflammation with high mortality. The potential application of Danshensu methyl ester (DME, synthesized in our lab) in ameliorating ALI has not been elucidated. Our results demonstrated that DME led to a remarkable reduction in lung injury. DME promoted a marked increase in antioxidant enzymes, like superoxide dismutase (SOD), and glutathione (GSH), accompanied by a substantial decrease in reactive oxygen species (ROS), myeloperoxidase (MPO), and malondialdehyde (MDA). Moreover, DME decreased the production of IL-1β, TNF-α and IL-6, in vitro and in vivo. TLR4 and MyD88 expression is reduced in the DME-treated cells or tissues, which further leading to a decrease of p-p65 and p-IκBα. Meanwhile, DME effectively facilitated an elevation in cytoplasmic p65 expression. In summary, DME could ameliorate ALI by its antioxidant functionality and anti-inflammation effects through TLR4/NF-κB, which implied that DME may be a viable medicine for lung injury.
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Affiliation(s)
- Xuejia Han
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, PR China; Department of Laboratory Medicine, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, PR China
| | - Wensi Ding
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, PR China; Department of Laboratory Medicine, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, PR China
| | - Guiwu Qu
- School of Gerontology, Binzhou Medical University, Yantai, PR China
| | - Youjie Li
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, PR China
| | - Pingyu Wang
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, PR China
| | - Jiahui Yu
- Binzhou Medical University, Yantai, PR China
| | - Mingyue Liu
- Binzhou Medical University, Yantai, PR China
| | - Xiulan Chen
- Binzhou Medical University, Yantai, PR China
| | - Shuyang Xie
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, PR China; Shandong Laboratory of Advanced Materials and Green Manufacturing, Yantai, Shandong, PR China.
| | - Jiankai Feng
- Department of Laboratory Medicine, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, PR China.
| | - Sen Xu
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, PR China.
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Jiang F, Hua C, Pan J, Peng S, Ning D, Chen C, Li S, Xu X, Wang L, Zhang C, Li M. Effect fraction of Bletilla striata (Thunb.) Reichb.f. alleviates LPS-induced acute lung injury by inhibiting p47 phox/NOX2 and promoting the Nrf2/HO-1 signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 126:155186. [PMID: 38387272 DOI: 10.1016/j.phymed.2023.155186] [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: 07/27/2023] [Revised: 10/18/2023] [Accepted: 11/02/2023] [Indexed: 02/24/2024]
Abstract
BACKGROUND & AIMS The effect fraction of Bletilla striata (Thunb.) Reichb.f. (EFBS), a phenolic-rich extract, has significant protective effects on lipopolysaccharide (LPS)-induced acute lung injury (ALI), but its composition and molecular mechanisms are unclear. This study elucidated its chemical composition and possible protective mechanisms against LPS-induced ALI from an antioxidant perspective. METHODS EFBS was prepared by ethanol extraction, enriched by polyamide column chromatography, and characterized using ultra-performance liquid chromatography/time-of-flight mass spectrometry. The LPS-induced ALI model and the RAW264.7 model were used to evaluate the regulatory effects of EFBS on oxidative stress, and transcriptome analysis was performed to explore its possible molecular mechanism. Then, the pathway by which EFBS regulates oxidative stress was validated through inhibitor intervention, flow cytometry, quantitative PCR, western blotting, and immunofluorescence techniques. RESULTS A total of 22 compounds in EFBS were identified. The transcriptome analyses of RAW264.7 cells indicated that EFBS might reduce reactive oxygen species (ROS) production by inhibiting the p47phox/NADPH oxidase 2 (NOX2) pathway and upregulating the nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) pathway. Both in vitro and in vivo data confirmed that EFBS significantly inhibited the expression and phosphorylation of p47phox protein, thereby weakening the p47phox/NOX2 pathway and reducing ROS production. EFBS significantly increased the expression of Nrf2 in primary peritoneal macrophages and lung tissue and promoted its nuclear translocation, dose-dependent increase in HO-1 levels, and enhancement of antioxidant activity. In vitro, both Nrf2 and HO-1 inhibitors significantly reduced the scavenging effects of EFBS on ROS, further confirming that EFBS exerts antioxidant effects at least partially by upregulating the Nrf2/HO-1 pathway. CONCLUSIONS EFBS contains abundant phenanthrenes and dibenzyl polyphenols, which can reduce ROS production by inhibiting the p47phox/NOX2 pathway and enhance ROS clearance activity by upregulating the Nrf2/HO-1 pathway, thereby exerting regulatory effects on oxidative stress and improving LPS-induced ALI.
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Affiliation(s)
- Fusheng Jiang
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Chenglong Hua
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jieli Pan
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Suyu Peng
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Dandan Ning
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Cheng Chen
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Shiqing Li
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xiaohua Xu
- People's Hospital of Quzhou, Quzhou 324002, China
| | - Linyan Wang
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Chunchun Zhang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Meiya Li
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
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Chen J, Zhou L, Li X, Wu X, Li Y, Si L, Deng Y. Protective effect of zerumbone on sepsis-induced acute lung injury through anti-inflammatory and antioxidative activity via NF-κB pathway inhibition and HO-1 activation. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:2241-2255. [PMID: 37812239 DOI: 10.1007/s00210-023-02706-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 08/30/2023] [Indexed: 10/10/2023]
Abstract
Sepsis is a systemic illness for which there are no effective preventive or therapeutic therapies. Zerumbone, a natural molecule, has anti-oxidative and anti-inflammatory properties that may help to prevent sepsis. In the present study, we have assessed the protective effect of zerumbone against sepsis-induced acute lung injury (ALI) and its underlying mechanisms. During the experiment, mice were divided into five groups: a sham group, a sepsis-induced ALI group, and three sepsis groups that are pre-treated with zerumbone at different concentrations. We found that zerumbone greatly decreased the sepsis-induced ALI using histological investigations. Also, zerumbone treatment reduced the sepsis-induced inflammatory cytokine concentrations as well as the number of infiltrating inflammatory cells in BALF compared to non-treated sepsis animals. The zerumbone-pretreated sepsis groups had reduced pulmonary myeloperoxidase (MPO) activity than the sepsis groups. Moreover, the mechanism underlying the protective action of zerumbone on sepsis is accomplished by the activation of antioxidant genes such as nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), superoxide dismutase (SOD), and heme oxygenase 1 (HO-1). The obtained results revealed that zerumbone inhibited the sepsis-induced ALI through its anti-inflammatory and antioxidative activity via inhibition of the NF-κB pathway and activation of HO-1 pathway. Our findings demonstrate that zerumbone pretreatment suppresses sepsis-induced ALI via antioxidative activities and anti-inflammatory, implying that zerumbone could be a viable preventive agent for sepsis-induced ALI.
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Affiliation(s)
- Jianjun Chen
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Liangliang Zhou
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Xinxin Li
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Xufeng Wu
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Yingbin Li
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Linjie Si
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China.
| | - Yijun Deng
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China.
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China.
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Wen H, Miao W, Liu B, Chen S, Zhang JS, Chen C, Quan MY. SPAUTIN-1 alleviates LPS-induced acute lung injury by inhibiting NF-κB pathway in neutrophils. Int Immunopharmacol 2024; 130:111741. [PMID: 38394887 DOI: 10.1016/j.intimp.2024.111741] [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: 12/22/2023] [Revised: 02/05/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND Acute lung injury (ALI) is an inflammatory condition characterized by acute damage to lung tissue. SPAUTIN-1, recognized as a small molecule drug targeting autophagy and USP10/13, has been reported for its potential to inhibit oxidative stress damage in various tissue injuries. However, the role and mechanism of SPAUTIN-1 in ALI remain unclear. This study aims to elucidate the protective effects of SPAUTIN-1 on ALI, with a particular focus on its role and mechanism in pulmonary inflammatory responses. METHODS Lipopolysaccharides (LPS) were employed to induce inflammation-mediated ALI. Bleomycin was used to induce non-inflammation-mediated ALI. The mechanism of SPAUTIN-1 action was identified through RNA-Sequencing and subsequently validated in mouse primary cells. Tert-butyl hydroperoxide (TBHP) was utilized to create an in vitro model of lung epithelial cell oxidative stress with MLE-12 cells. RESULTS SPAUTIN-1 significantly mitigated LPS-induced lung injury and inflammatory responses, attenuated necroptosis and apoptosis in lung epithelial cells, and inhibited autophagy in leukocytes and epithelial cells. However, SPAUTIN-1 exhibited no significant effect on bleomycin-induced lung injury. RNA-sequencing results demonstrated that SPAUTIN-1 significantly inhibited the NF-κB signaling pathway in leukocytes, a finding consistently confirmed by mouse primary cell assays. In vitro experiments further revealed that SPAUTIN-1 effectively mitigated oxidative stress injury in MLE-12 cells induced by TBHP. CONCLUSION SPAUTIN-1 alleviated LPS-induced inflammatory injury by inhibiting the NF-κB pathway in leukocytes and protected epithelial cells from oxidative damage, positioning it as a potential therapeutic candidate for ALI.
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Affiliation(s)
- Hezhi Wen
- Zhejiang Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Wanqi Miao
- Zhejiang Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Bin Liu
- Zhejiang Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Shiyin Chen
- Wenzhou Medical University, Wenzhou 325000, China
| | - Jin-San Zhang
- Zhejiang Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China; Department of Pulmonary and Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, China
| | - Chengshui Chen
- Zhejiang Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China; Department of Pulmonary and Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, China.
| | - Mei-Yu Quan
- Zhejiang Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
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He W, Xu C, Huang Y, Zhang Q, Chen W, Zhao C, Chen Y, Zheng D, XinyueLin, Luo Q, Chen X, Zhang Z, Wu X, Huang J, Lin C, Huang Y, Zhang S. Therapeutic potential of ADSC-EV-derived lncRNA DLEU2: A novel molecular pathway in alleviating sepsis-induced lung injury via the miR-106a-5p/LXN axis. Int Immunopharmacol 2024; 130:111519. [PMID: 38442573 DOI: 10.1016/j.intimp.2024.111519] [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: 09/19/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 03/07/2024]
Abstract
This study investigates the molecular mechanisms by which extracellular vesicles (EVs) derived from adipose-derived mesenchymal stem cells (ADSCs) promote M2 polarization of macrophages and thus reduce lung injury caused by sepsis. High-throughput sequencing was used to identify differentially expressed genes related to long non-coding RNA (lncRNA) in ADSC-derived EVs (ADSC-EVs) in sepsis lung tissue. Weighted gene co-expression network analysis (WGCNA) was employed to predict the downstream target genes of the lncRNA DLEU2. The RNAInter database predicted miRNAs that interact with DLEU2 and LXN. Functional and pathway enrichment analyses were performed using GO and KEGG analysis. A mouse model of sepsis was established, and treatment with a placebo or ADSC-EVs was administered, followed by RT-qPCR analysis. ADSC-EVs were isolated and identified. In vitro cell experiments were conducted using the mouse lung epithelial cell line MLE-12, mouse macrophage cell line RAW264.7, and mouse lung epithelial cell line (LEPC). ADSC-EVs were co-cultured with RAW264.7 and MLE-12/LEPC cells to study the regulatory mechanism of the lncRNA DLEU2. Cell viability, proliferation, and apoptosis of lung injury cells were assessed using CCK-8, EdU, and flow cytometry. ELISA was used to measure the levels of inflammatory cytokines in the sepsis mouse model, flow cytometry was performed to determine the number of M1 and M2 macrophages, lung tissue pathology was evaluated by H&E staining, and immunohistochemistry was conducted to examine the expression of proliferation- and apoptosis-related proteins. High-throughput sequencing and bioinformatics analysis revealed enrichment of the lncRNA DLEU2 in ADSC-EVs in sepsis lung tissue. Animal and in vitro cell experiments showed increased expression of the lncRNA DLEU2 in sepsis lung tissue after treatment with ADSC-EVs. Furthermore, ADSC-EVs were found to transfer the lncRNA DLEU2 to macrophages, promoting M2 polarization, reducing inflammation response in lung injury cells, and enhancing their viability, proliferation, and apoptosis inhibition. Further functional experiments indicated that lncRNA DLEU2 promotes M2 polarization of macrophages by regulating miR-106a-5p/LXN, thereby enhancing the viability and proliferation of lung injury cells and inhibiting apoptosis. Overexpression of miR-106a-5p could reverse the biological effects of ADSC-EVs-DLEU2 on MLE-12 and LEPC in vitro cell models. Lastly, in vivo animal experiments confirmed that ADSC-EVs-DLEU2 promotes high expression of LXN by inhibiting the expression of miR-106a-5p, further facilitating M2 macrophage polarization and reducing lung edema, thus alleviating sepsis-induced lung injury. lncRNA DLEU2 in ADSC-EVs may promote M2 polarization of macrophages and enhance the viability and proliferation of lung injury cells while inhibiting inflammation and apoptosis reactions, thus ameliorating sepsis-induced lung injury in a mechanism involving the regulation of the miR-106a-5p/LXN axis.
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Affiliation(s)
- Wei He
- Department of Pharmacy, Guangzhou Red Cross Hospital, (Guangzhou Red Cross Hospital of Jinan University), Guangzhou 510220, PR China
| | - Chengcheng Xu
- Department of Pharmacy, Guangzhou Red Cross Hospital, (Guangzhou Red Cross Hospital of Jinan University), Guangzhou 510220, PR China
| | - Yuying Huang
- School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou 550025, PR China
| | - Qiuzhen Zhang
- Department of Pharmacy, Jiangmen central Hospital, Jiangmen 529030, PR China
| | - Wang Chen
- Department of Pharmacy, Guangzhou Red Cross Hospital, (Guangzhou Red Cross Hospital of Jinan University), Guangzhou 510220, PR China
| | - Chengkuan Zhao
- Department of Pharmacy, Guangzhou Red Cross Hospital, (Guangzhou Red Cross Hospital of Jinan University), Guangzhou 510220, PR China
| | - Yun Chen
- Department of Pharmacy, Guangzhou Red Cross Hospital, (Guangzhou Red Cross Hospital of Jinan University), Guangzhou 510220, PR China
| | - Danling Zheng
- Department of Pharmacy, Guangzhou Red Cross Hospital, (Guangzhou Red Cross Hospital of Jinan University), Guangzhou 510220, PR China; Department of Pharmacology, Shantou University Medical College, Shantou 515041, PR China
| | - XinyueLin
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, PR China
| | - Qianhua Luo
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, PR China
| | - Xiaoshan Chen
- Department of Pharmacy, Guangzhou Red Cross Hospital, (Guangzhou Red Cross Hospital of Jinan University), Guangzhou 510220, PR China
| | - Zhihan Zhang
- School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou 550025, PR China
| | - Xiaolong Wu
- College of Pharmacy, Jinan University, Guangzhou 510220, PR China
| | - Jianxiang Huang
- College of Pharmacy, Jinan University, Guangzhou 510220, PR China
| | - Chaoxian Lin
- Shantou Chaonan Minsheng Hospital, Shantou 515041, PR China.
| | - Yihui Huang
- Department of Pediatrics, Guangzhou Red Cross Hospital, (Guangzhou Red Cross Hospital of Jinan University), Guangzhou 510220, PR China.
| | - Shuyao Zhang
- Department of Pharmacy, Guangzhou Red Cross Hospital, (Guangzhou Red Cross Hospital of Jinan University), Guangzhou 510220, PR China.
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Yudhawati R, Wicaksono NF. Immunomodulatory Effects of Fluoroquinolones in Community-Acquired Pneumonia-Associated Acute Respiratory Distress Syndrome. Biomedicines 2024; 12:761. [PMID: 38672119 PMCID: PMC11048665 DOI: 10.3390/biomedicines12040761] [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: 02/26/2024] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Community-acquired pneumonia is reported as one of the infectious diseases that leads to the development of acute respiratory distress syndrome. The innate immune system is the first line of defence against microbial invasion; however, its dysregulation during infection, resulting in an increased pathogen load, stimulates the over-secretion of chemokines and pro-inflammatory cytokines. This phenomenon causes damage to the epithelial-endothelial barrier of the pulmonary alveoli and the leakage of the intravascular protein into the alveolar lumen. Fluoroquinolones are synthetic antimicrobial agents with immunomodulatory properties that can inhibit bacterial proliferation as well as exhibit anti-inflammatory activities. It has been demonstrated that the structure of fluoroquinolones, particularly those with a cyclopropyl group, exerts immunomodulatory effects. Its capability to inhibit phosphodiesterase activity leads to the accumulation of intracellular cAMP, which subsequently enhances PKA activity, resulting in the inhibition of transcriptional factor NF-κB and the activation of CREB. Another mechanism reported is the inhibition of TLR and ERK signalling pathways. Although the sequence of events has not been completely understood, significant progress has been made in comprehending the specific mechanisms underlying the immunomodulatory effects of fluoroquinolones. Here, we review the indirect immunomodulatory effects of FQs as an alternative to empirical therapy in patients diagnosed with community-acquired pneumonia.
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Affiliation(s)
- Resti Yudhawati
- Department of Pulmonology and Respiratory Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya 60132, Indonesia
- Department of Pulmonology and Respiratory Medicine, Universitas Airlangga Teaching Hospital, Surabaya 60015, Indonesia
- Department of Pulmonology and Respiratory Medicine, Dr. Soetomo General Hospital, Surabaya 60286, Indonesia
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Li Z, Yu Y, Bu Y, Liu C, Jin J, Li W, Chen G, Liu E, Zhang Y, Gong W, Luo J, Yue Z. QiShenYiQi pills preserve endothelial barrier integrity to mitigate sepsis-induced acute lung injury by inhibiting ferroptosis. JOURNAL OF ETHNOPHARMACOLOGY 2024; 322:117610. [PMID: 38122915 DOI: 10.1016/j.jep.2023.117610] [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: 10/15/2023] [Revised: 11/28/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The QiShengYiQi pill (QSYQ) is a traditional Chinese medicinal formulation. The effectiveness and safety of QSYQ in treating respiratory system disorders have been confirmed. Its pharmacological actions include anti-inflammation, antioxidative stress, and improving energy metabolism. However, the mechanism of QSYQ in treating sepsis-induced acute lung injury (si-ALI) remains unclear. AIM OF THE STUDY Si-ALI presents a clinical challenge with high incidence and mortality rates. This study aims to confirm the efficacy of QSYQ in si-ALI and to explore the potential mechanisms, providing a scientific foundation for its application and insights for optimizing treatment strategies and identifying potential active components. MATERIALS AND METHODS The impact of QSYQ on si-ALI was evaluated using the cecal ligation and puncture (CLP) experimental sepsis animal model. The effects of QSYQ on endothelial cells were observed through coculturing with LPS-stimulated macrophage-conditioned medium. Inflammatory cytokine levels, HE staining, Evans blue staining, lung wet/dry ratio, and cell count and protein content in bronchoalveolar lavage fluid were used to assess the degree of lung injury. Network pharmacology was utilized to investigate the potential mechanisms of QSYQ in treating si-ALI. Western blot and immunofluorescence analyses were used to evaluate barrier integrity and validate mechanistically relevant proteins. RESULTS QSYQ reduced the inflammation and alleviated pulmonary vascular barrier damage in CLP mice (all P < 0.05). A total of 127 potential targets through which QSYQ regulates si-ALI were identified, predominantly enriched in the RAGE pathway. The results of protein-protein interaction analysis suggest that COX2, a well-established critical marker of ferroptosis, is among the key targets. In vitro and in vivo studies demonstrated that QSYQ mitigated ferroptosis and vascular barrier damage in sepsis (all P < 0.05), accompanied by a reduction in oxidative stress and the inhibition of the COX2 and RAGE (all P < 0.05). CONCLUSIONS This study demonstrated that QSYQ maintains pulmonary vascular barrier integrity by inhibiting ferroptosis in CLP mice. These findings partially elucidate the mechanism of QSYQ in si-ALI and further clarify the active components of QSYQ, thereby providing a scientific theoretical basis for treating si-ALI with QSYQ.
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Affiliation(s)
- Zhixi Li
- Department of Anesthesiology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China; Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, 246 Xuefu Road, Harbin, 150001, PR China; The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, 246 Xuefu Road, Harbin, 150001, PR China
| | - Yongjing Yu
- Department of Anesthesiology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China; Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, 246 Xuefu Road, Harbin, 150001, PR China; The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, 246 Xuefu Road, Harbin, 150001, PR China
| | - Yue Bu
- Department of Anesthesiology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China; Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, 246 Xuefu Road, Harbin, 150001, PR China; Department of Pain Medicine, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China
| | - Chang Liu
- Department of Anesthesiology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China; Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, 246 Xuefu Road, Harbin, 150001, PR China; The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, 246 Xuefu Road, Harbin, 150001, PR China
| | - Jiaqi Jin
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, 246 Xuefu Road, Harbin, 150001, PR China; Department of Neurology, Xuanwu Hospital, Capital Medical University, 45 Changchun Road, Beijing, 100053, PR China
| | - Wenqiang Li
- Department of Vascular Surgery, Jinshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China
| | - Guangmin Chen
- Department of Anesthesiology, First Affiliated Hospital of Harbin Medical University, 199 Dazhi Road, Harbin, 150001, PR China
| | - Enran Liu
- Department of Anesthesiology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China; Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, 246 Xuefu Road, Harbin, 150001, PR China
| | - Yan Zhang
- Department of Anesthesiology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China; Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, 246 Xuefu Road, Harbin, 150001, PR China
| | - Weidong Gong
- Department of Anesthesiology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China; Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, 246 Xuefu Road, Harbin, 150001, PR China
| | - Juan Luo
- Department of Anesthesiology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China; Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, 246 Xuefu Road, Harbin, 150001, PR China
| | - Ziyong Yue
- Department of Anesthesiology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, PR China; Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, 246 Xuefu Road, Harbin, 150001, PR China.
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Geng Q, Liu B, Fan D, Cao Z, Li L, Lu P, Lin L, Yan L, Xiong Y, He X, Lu J, Chen P, Lu C. Strictosamide ameliorates LPS-induced acute lung injury by targeting ERK2 and mediating NF-κB signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 322:117593. [PMID: 38113987 DOI: 10.1016/j.jep.2023.117593] [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: 10/12/2023] [Revised: 12/05/2023] [Accepted: 12/11/2023] [Indexed: 12/21/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acute lung injury (ALI) ranks among the deadliest pulmonary diseases, significantly impacting mortality and morbidity. Presently, the primary treatment for ALI involves supportive therapy; however, its efficacy remains unsatisfactory. Strictosamide (STR), an indole alkaloid found in the Chinese herbal medicine Nauclea officinalis (Pierre ex Pit.) Merr. & Chun (Wutan), has been found to exhibit numerous pharmacological properties, particularly anti-inflammatory effects. AIM OF THE STUDY This study aimes to systematically identify and validate the specific binding proteins targeted by STR and elucidate its anti-inflammatory mechanism in lipopolysaccharide (LPS)-induced ALI. MATERIALS AND METHODS Biotin chemical modification, protein microarray analysis and network pharmacology were conducted to screen for potential STR-binding proteins. The binding affinity was assessed through surface plasmon resonance (SPR), cellular thermal shift assay (CETSA) and molecular docking, and the anti-inflammatory mechanism of STR in ALI treatment was assessed through in vivo and in vitro experiments. RESULTS Biotin chemical modification, protein microarray and network pharmacology identified extracellular-signal-regulated kinase 2 (ERK2) as the most important binding proteins among 276 candidate STR-interacting proteins and nuclear factor-kappaB (NF-κB) pathway was one of the main inflammatory signal transduction pathways. Using SPR, CETSA, and molecular docking, we confirmed STR's affinity for ERK2. In vitro and in vivo experiments demonstrated that STR mitigated inflammation by targeting ERK2 to modulate the NF-κB signaling pathway in LPS-induced ALI. CONCLUSIONS Our findings indicate that STR can inhibit the NF-κB signaling pathway to attenuate LPS-induced inflammation by targeting ERK2 and decreasing phosphorylation of ERK2, which could be a novel strategy for treating ALI.
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Affiliation(s)
- Qi Geng
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Bin Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Danping Fan
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China; Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Beijing, 100700, PR China
| | - Zhiwen Cao
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Li Li
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Peipei Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Lin Lin
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Lan Yan
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Yibai Xiong
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Xiaojuan He
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Jun Lu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
| | - Peng Chen
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China; Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Beijing, 100700, PR China.
| | - Cheng Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, PR China.
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Wang Q, Wen W, Zhou L, Liu F, Ren X, Yu L, Chen H, Jiang Z. LL-37 improves sepsis-induced acute lung injury by suppressing pyroptosis in alveolar epithelial cells. Int Immunopharmacol 2024; 129:111580. [PMID: 38310763 DOI: 10.1016/j.intimp.2024.111580] [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: 11/03/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/06/2024]
Abstract
BACKGROUND LL-37 (also known as murine CRAMP) is a human antimicrobial peptide that plays a crucial role in innate immune defence against sepsis through various mechanisms. However, its involvement in sepsis-induced lung injury remains unclear. OBJECTIVES This work investigates the impact of LL-37 on pyroptosis generated by LPS in alveolar epithelial cells. The research utilizes both in vivo and in vitro sepsis-associated acute lung injury (ALI) models to understand the underlying molecular pathways. METHODS In vivo, an acute lung injury model induced by sepsis was established by intratracheal administration of LPS in C57BL/6J mice, which were subsequently treated with low-dose CRAMP (recombinant murine cathelicidin, 2.5 mg.kg-1) and high-dose CRAMP (5.0 mg.kg-1). In vitro, pyroptosis was induced in a human alveolar epithelial cell line (A549) by stimulation with LPS and ATP. Treatment was carried out with recombinant human LL-37, or LL-37 was knocked out in A549 cells using small interfering RNA (siRNA). Subsequently, haematoxylin and eosin staining was performed to observe the histopathological changes in lung tissues in the control group and sepsis-induced lung injury group. TUNEL and PI staining were used to observe DNA fragmentation and pyroptosis in mouse lung tissues and cells in the different groups. An lactate dehydrogenase (LDH) assay was performed to measure the cell death rate. The expression levels of NLRP3, caspase1, caspase 1 p20, GSDMD, NT-GSDMD, and CRAMP were detected in mice and cells using Western blotting, qPCR, and immunohistochemistry. ELISA was used to assess the levels of interleukin (IL)-1β and IL-18 in mouse serum, bronchoalveolar lavage fluid (BALF) and lung tissue and cell culture supernatants. RESULTS The expression of NLRP3, caspase1 p20, NT-GSDMD, IL 18 and IL1β in the lung tissue of mice with septic lung injury was increased, which indicated activation of the canonical pyroptosis pathway and coincided with an increase in CRAMP expression. Treatment with recombinant CRAMP improved pyroptosis in mice with lung injury. In vitro, treatment with LPS and ATP upregulated these classic pyroptosis molecules, LL-37 knockdown exacerbated pyroptosis, and recombinant human LL-37 treatment alleviated pyroptosis in alveolar epithelial cells. CONCLUSION These findings indicate that LL-37 protects against septic lung injury by modulating the expression of classic pyroptotic pathway components, including NLRP3, caspase1, and GSDMD and downstream inflammatory factors in alveolar epithelial cells.
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Affiliation(s)
- Quanzhen Wang
- Department of Critical Care Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
| | - Wei Wen
- Department of Critical Care Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
| | - Lei Zhou
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, China; Department of Respiratory Intensive Care Unit, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
| | - Fen Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
| | - Xiaoxu Ren
- Department of Critical Care Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
| | - Lifeng Yu
- Department of Critical Care Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
| | - Huanqin Chen
- Department of Gerontology, Qilu Hospital, Shandong University, Jinan, 250012 Shandong, China
| | - Zhiming Jiang
- Department of Critical Care Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China.
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Huang D, He D, Gong L, Jiang W, Yao R, Liang Z. A Nomogram for Predicting Mortality in Patients with Pneumonia-Associated Acute Respiratory Distress Syndrome (ARDS). J Inflamm Res 2024; 17:1549-1560. [PMID: 38476470 PMCID: PMC10929650 DOI: 10.2147/jir.s454992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Background There is no predictive tool developed for pneumonia-associated acute respiratory distress syndrome (ARDS) specifically so far, and the clinical risk classification of these patients is not well defined. Our study aims to construct an early prediction model for hospital mortality in patients with pneumonia-associated ARDS. Methods In this single-center retrospective study, consecutive patients with pneumonia-associated ARDS admitted into intensive care units (ICUs) in West China Hospital of Sichuan University in China between January 2012 and December 2018 were enrolled. The least absolute shrinkage and selection operator (LASSO) regression and then multivariate logistic regression analysis were used to identify independent predictors which were used to develop a nomogram. We evaluated the performance of differentiation, calibration, and clinical utility of the nomogram. Results The included patients were divided into the training cohort (442 patients) and the testing cohort (190 patients) with comparable baseline characteristics. The independent predictors for hospital mortality included age (OR: 1.04; 95% CI: 1.02, 1.05), chronic cardiovascular diseases (OR: 2.62; 95% CI: 1.54, 4.45), chronic respiratory diseases (OR: 1.87; 95% CI: 1.02, 3.43), lymphocytes (OR: 0.56; 95% CI: 0.39, 0.81), albumin (OR: 0.94; 95% CI: 0.90, 1.00), creatinine (OR: 1.00; 95% CI: 1.00, 1.01), D-dimer (OR: 1.06; 95% CI: 1.03, 1.09) and procalcitonin (OR: 1.14; 95% CI: 1.07, 1.22). A web-based dynamic nomogram (https://h1234.shinyapps.io/dynnomapp/) was constructed based on these factors. The concordance index (C index) of the nomogram was 0.798 (95% CI: 0.756, 0.840) in the training cohort and 0.808 (95% CI: 0.747, 0.870) in testing cohort. The precision-recall (PR) curves, calibration curves, decision curve analyses (DCA) and clinical impact curves showed that the nomogram has good predictive value and clinical utility. Conclusion We developed and evaluated a convenient nomogram consisting of 8 clinical characteristics for predicting mortality in patients with pneumonia-associated ARDS.
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Affiliation(s)
- Dong Huang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| | - Dingxiu He
- Department of Emergency Medicine, The People’s Hospital of Deyang, Deyang, Sichuan, People’s Republic of China
| | - Linjing Gong
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| | - Wei Jiang
- Department of Emergency Medicine, The People’s Hospital of Deyang, Deyang, Sichuan, People’s Republic of China
| | - Rong Yao
- Department of Emergency Medicine, Emergency Medical Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| | - Zongan Liang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, People’s Republic of China
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Huang W, Wang L, Huang Z, Sun Z, Zheng B. Peroxiredoxin 3 has a crucial role in the macrophage polarization by regulating mitochondrial homeostasis. Respir Res 2024; 25:110. [PMID: 38431661 PMCID: PMC10909251 DOI: 10.1186/s12931-024-02739-9] [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: 10/15/2023] [Accepted: 02/19/2024] [Indexed: 03/05/2024] Open
Abstract
Acute lung injury (ALI) is one of the life-threatening complications of sepsis, and macrophage polarization plays a crucial role in the sepsis-associated ALI. However, the regulatory mechanisms of macrophage polarization in ALI and in the development of inflammation are largely unknown. In this study, we demonstrated that macrophage polarization occurs in sepsis-associated ALI and is accompanied by mitochondrial dysfunction and inflammation, and a decrease of PRDX3 promotes the initiation of macrophage polarization and mitochondrial dysfunction. Mechanistically, PRDX3 overexpression promotes M1 macrophages to differentiate into M2 macrophages, and enhances mitochondrial functional recovery after injury by reducing the level of glycolysis and increasing TCA cycle activity. In conclusion, we identified PRDX3 as a critical hub integrating oxidative stress, inflammation, and metabolic reprogramming in macrophage polarization. The findings illustrate an adaptive mechanism underlying the link between macrophage polarization and sepsis-associated ALI.
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Affiliation(s)
- Wenhui Huang
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Lianfang Wang
- Department of Respiratory and Critical Care Medicine, Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Guangxi, China
| | - Zhipeng Huang
- Dongguan Hospital of Integrated Chinese and Western Medicine, Dongguan, China
| | - Zhichao Sun
- The Second Affiliated Hospital of Guangzhou, University of Chinese Medicine, Guangzhou, China
| | - Bojun Zheng
- Department of Critical Care Medicine, The Second Affiliated Hospital of Guangzhou, University of Chinese Medicine, Guangzhou, China.
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Sang A, Zhang J, Zhang M, Xu D, Xuan R, Wang S, Song X, Li X. METTL4 mediated-N6-methyladenosine promotes acute lung injury by activating ferroptosis in alveolar epithelial cells. Free Radic Biol Med 2024; 213:90-101. [PMID: 38224757 DOI: 10.1016/j.freeradbiomed.2024.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/27/2023] [Accepted: 01/10/2024] [Indexed: 01/17/2024]
Abstract
Sepsis-induced acute lung injury has been deemed to be an life-threatening pulmonary dysfunction caused by a dysregulated host response to infection. The modification of N6-Methyladenosine (m6A) is implicated in several biological processes, including mitochondrial transcription and ferroptosis. Ferroptosis is an iron-dependent type of programed cell death, which plays a role in sepsis-induced acute lung injury (ALI). Nuclear factor erythroid 2-related factor 2 (Nrf2) is a crucial regulator of intracellular oxidative homeostasis, linked to ferroptosis resistance. This research aims to explore the effect of m6A in ferroptosis in sepsis-induced ALI. First, we found a time-dependent dynamic alteration on pulmonary methylation level during sepsis-induced ALI. We identified METTL4 as a differentially expressed gene in ALI mice using m6A sequencing and RNA-sequencing, and revealed the methylation of several ferroptosis related genes (Nrf2). Thus, we generated METTL4 deficiency mice and found that METTL4 knockdown alleviated ferroptosis, as evidenced by lipid ROS, MDA, Fe2+, as well as alterations in GPX4 and SLC7A11 protein expression. Consistently, we found that METTL4 silencing could decrease ferroptosis sensitivity in LPS-induced TC-1 cells. Furthermore, both the dual-luciferase reporter assay and rescue experiments indicated that METTL4 mediated the N6-methyladenosine of Nrf2 3'UTR, then YTHDF2 binded with the m6A site, promoting the degradation of Nrf2. In conclusion, we revealed that METTL4 promoted alveolar epithelial cells ferroptosis in sepsis-induced lung injury via N6-methyladenosine of Nrf2, which might provide a novel approach to therapeutic strategies for sepsis-induced ALI.
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Affiliation(s)
- Aming Sang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071
| | - Jing Zhang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071
| | - Mi Zhang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071
| | - Dawei Xu
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071
| | - Rui Xuan
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071
| | - Shun Wang
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071.
| | - Xuemin Song
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071.
| | - Xinyi Li
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071.
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Alipourfard I, Darvishi M, Khalighfard A, Ghazi F, Mobed A. Nanomaterial-based methods for sepsis management. Enzyme Microb Technol 2024; 174:110380. [PMID: 38147783 DOI: 10.1016/j.enzmictec.2023.110380] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 11/26/2023] [Accepted: 12/12/2023] [Indexed: 12/28/2023]
Abstract
Sepsis is a serious disease caused by an impaired host immune response to infection, resulting in organ dysfunction, tissue damage and is responsible for high in-hospital mortality (approximately 20%). Recently, WHO documented sepsis as a global health priority. Nevertheless, there is still no effective and specific therapy for clinically detecting sepsis. Nanomaterial-based approaches have appeared as promising tools for identifying bacterial infections. In this review, recent biosensors are introduced and summarized as nanomaterial-based platforms for sepsis management and severe complications. Biosensors can be used as tools for the diagnosis and treatment of sepsis and as nanocarriers for drug delivery. In general, diagnostic methods for sepsis-associated bacteria, biosensors developed for this purpose are presented in detail, and their strengths and weaknesses are discussed. In other words, readers of this article will gain a comprehensive understanding of biosensors and their applications in sepsis management.
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Affiliation(s)
- Iraj Alipourfard
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Katowice, Poland
| | - Mohammad Darvishi
- Infectious Diseases and Tropical Medicine Research Center (IDTMRC), Department of Aerospace and Subaquatic Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Arghavan Khalighfard
- Department of Nursing and Midwifery٫ Faculty of Midwifery٬ Zanjan University of Medical Sciences, Zanjan, Iran
| | - Farhood Ghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz 5154853431, Iran
| | - Ahmad Mobed
- Infectious and Tropical Diseases Research Center, Clinical Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
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Shen T, Li Y, Liu T, Lian Y, Kong L. Association between Mycoplasma pneumoniae infection, high‑density lipoprotein metabolism and cardiovascular health (Review). Biomed Rep 2024; 20:39. [PMID: 38357242 PMCID: PMC10865299 DOI: 10.3892/br.2024.1729] [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: 11/02/2023] [Accepted: 01/09/2024] [Indexed: 02/16/2024] Open
Abstract
The association between Mycoplasma pneumoniae (M. pneumoniae) infection, high-density lipoprotein metabolism and cardiovascular disease is an emerging research area. The present review summarizes the basic characteristics of M. pneumoniae infection and its association with high-density lipoprotein and cardiovascular health. M. pneumoniae primarily invades the respiratory tract and damages the cardiovascular system through various mechanisms including adhesion, invasion, secretion of metabolites, production of autoantibodies and stimulation of cytokine production. Additionally, the present review highlights the potential role of high-density lipoprotein for the development of prevention and intervention of M. pneumoniae infection and cardiovascular disease, and provides suggestions for future research directions and clinical practice. It is urgent to explore the specific mechanisms underlying the association between M. pneumoniae infection, high-density lipoprotein metabolism, and cardiovascular disease and analyze the roles of the immune system and inflammatory response.
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Affiliation(s)
- Tao Shen
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Yanfang Li
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Tingting Liu
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Yunzhi Lian
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Luke Kong
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
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Tang N, Yang Y, Xie Y, Yang G, Wang Q, Li C, Liu Z, Huang JA. CD274 (PD-L1) negatively regulates M1 macrophage polarization in ALI/ARDS. Front Immunol 2024; 15:1344805. [PMID: 38440722 PMCID: PMC10909908 DOI: 10.3389/fimmu.2024.1344805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
Background Acute lung injury (ALI)/severe acute respiratory distress syndrome (ARDS) is a serious clinical syndrome characterized by a high mortality rate. The pathophysiological mechanisms underlying ALI/ARDS remain incompletely understood. Considering the crucial role of immune infiltration and macrophage polarization in the pathogenesis of ALI/ARDS, this study aims to identify key genes associated with both ALI/ARDS and M1 macrophage polarization, employing a combination of bioinformatics and experimental approaches. The findings could potentially reveal novel biomarkers for the diagnosis and management of ALI/ARDS. Methods Gene expression profiles relevant to ALI were retrieved from the GEO database to identify co-upregulated differentially expressed genes (DEGs). GO and KEGG analyses facilitated functional annotation and pathway elucidation. PPI networks were constructed to identify hub genes, and differences in immune cell infiltration were subsequently examined. The expression of hub genes in M1 versus M2 macrophages was evaluated using macrophage polarization datasets. The diagnostic utility of CD274 (PD-L1) for ARDS was assessed by receiver operating characteristic (ROC) analysis in a validation dataset. Experimental confirmation was conducted using two LPS-induced M1 macrophage models and an ALI mouse model. The role of CD274 (PD-L1) in M1 macrophage polarization and associated proinflammatory cytokine production was further investigated by siRNA-mediated silencing. Results A total of 99 co-upregulated DEGs were identified in two ALI-linked datasets. Enrichment analysis revealed that these DEGs were mainly involved in immune-inflammatory pathways. The following top 10 hub genes were identified from the PPI network: IL-6, IL-1β, CXCL10, CD274, CCL2, TLR2, CXCL1, CCL3, IFIT1, and IFIT3. Immune infiltration analysis revealed a significantly increased abundance of M1 and M2 macrophages in lung tissue from the ALI group compared to the control group. Subsequent analysis confirmed that CD274 (PD-L1), a key immunological checkpoint molecule, was highly expressed within M1 macrophages. ROC analysis validated CD274 (PD-L1) as a promising biomarker for the diagnosis of ARDS. Both in vitro and in vivo experiments supported the bioinformatics analysis and confirmed that the JAK-STAT3 pathway promotes CD274 (PD-L1) expression on M1 macrophages. Importantly, knockdown of CD274 (PD-L1) expression potentiated M1 macrophage polarization and enhanced proinflammatory cytokines production. Conclusion This study demonstrates a significant correlation between CD274 (PD-L1) and M1 macrophages in ALI/ARDS. CD274 (PD-L1) functions as a negative regulator of M1 polarization and the secretion of proinflammatory cytokines in macrophages. These findings suggest potential new targets for the diagnosis and treatment of ALI/ARDS.
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Affiliation(s)
- Nana Tang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Medical Intensive Care Unit, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yang Yang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Yifei Xie
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Guohui Yang
- Medical Intensive Care Unit, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Qin Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Chang Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Zeyi Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Jian-an Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
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Zhao C, Luo Q, Huang J, Su S, Zhang L, Zheng D, Chen M, Lin X, Zhong J, Li L, Ling K, Zhang S. Extracellular Vesicles Derived from Human Adipose-Derived Mesenchymal Stem Cells Alleviate Sepsis-Induced Acute Lung Injury through a MicroRNA-150-5p-Dependent Mechanism. ACS Biomater Sci Eng 2024; 10:946-959. [PMID: 38154081 DOI: 10.1021/acsbiomaterials.3c00614] [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] [Indexed: 12/30/2023]
Abstract
Extracellular vesicles (EVs) derived from human adipose mesenchymal stem cells (hADSCs) may exert a therapeutic benefit in alleviating sepsis-induced organ dysfunction by delivering cargos that include RNAs and proteins to target cells. The current study aims to explore the protective effect of miR-150-5p delivered by hADSC-EVs on sepsis-induced acute lung injury (ALI). We noted low expression of miR-150-5p in plasma and bronchoalveolar lavage fluid samples from patients with sepsis-induced ALI. The hADSC-EVs were isolated and subsequently cocultured with macrophages. It was established that hADSC-EVs transferred miR-150-5p to macrophages, where miR-150-5p targeted HMGA2 to inhibit its expression and, consequently, inactivated the MAPK pathway. This effect contributed to the promotion of M2 polarization of macrophages and the inhibition of proinflammatory cytokines. Further, mice were made septic by cecal ligation and puncture in vivo and treated with hADSC-EVs to elucidate the effect of hADSC-EVs on sepsis-induced ALI. The in vivo experimental results confirmed a suppressive role of hADSC-EVs in sepsis-induced ALI. Our findings suggest that hADSC-EV-mediated transfer of miR-150-5p may be a novel mechanism underlying the paracrine effects of hADSC-EVs on the M2 polarization of macrophages in sepsis-induced ALI.
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Affiliation(s)
- Chengkuan Zhao
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, P.R. China
| | - Qianhua Luo
- Department of Pharmacology, Guangdong Second Provincial General Hospital, Guangzhou 510317, P.R. China
- Jinshazhou Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510168, P.R. China
| | - Jianxiang Huang
- College of Pharmacy, Jinan University, Guangzhou 510220, P.R. China
| | - Siman Su
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, P.R. China
| | - Lijuan Zhang
- Department of Pharmacy, YueBei People's Hospital (YueBei People's Hospital affiliated to Shantou University Medical College), ShaoGuan 512000, P.R. China
| | - Danling Zheng
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, P.R. China
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, P.R. China
| | - Meini Chen
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, P.R. China
| | - Xinyue Lin
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, P.R. China
| | - Jialin Zhong
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, P.R. China
| | - Li Li
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, P.R. China
| | - Kai Ling
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, P.R. China
| | - Shuyao Zhang
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, P.R. China
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Su J, Jian Z, Zou M, Tong H, Wan P. Netrin-1 mitigates acute lung injury by preventing the activation of the Toll-like receptor 4/nuclear factor-κB (TLR4/NF-κB) signaling. Aging (Albany NY) 2024; 16:2978-2988. [PMID: 38345562 PMCID: PMC10911383 DOI: 10.18632/aging.205527] [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: 09/15/2023] [Accepted: 12/14/2023] [Indexed: 02/22/2024]
Abstract
Acute lung injury (ALI) is one of the most common high-risk diseases associated with a high mortality rate and is still a challenge to treat effectively. Netrin-1 (NT-1) is a novel peptide with a wide range of biological functions, however, its effects on ALI have not been reported before. In this study, an ALI model was constructed using lipopolysaccharide (LPS) and treated with NT-1. Pulmonary function and lung wet to dry weight ratio (W/D) were detected. The expressions of pro-inflammatory cytokines and chemokines interleukin-8 (IL-8), interleukin-1β (IL-1β), and chemokine (C-X-C motif) ligand 2 (CXCL2) were measured using real-time polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). We found that the levels of NT-1 were reduced in the LPS-induced ALI mice model. Administration of NT-1 improved histopathological changes of lung tissues and lung function in LPS-challenged ALI mice. We also report that NT-1 decreased Myeloperoxidase (MPO) activity and ameliorated pulmonary edema. Additionally, treatment with NT-1 reduced the levels of pro-inflammatory cytokines and chemokines such as IL-8, IL-1β, and CXCL2 in lung tissues of LPS-challenged ALI mice. Importantly, NT-1 reduced cell count in BALF and mitigated oxidative stress (OS) by reducing the levels of MDA and increasing the levels of GSH. Mechanistically, it is shown that NT-1 reduced the levels of Toll-like receptor 4 (TLR4) and prevented nuclear translocation of nuclear factor-κB (NF-κB) p65. Our findings indicate that NT-1 is a promising agent for the treatment of ALI through inhibiting TLR4/NF-κB signaling.
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Affiliation(s)
- Jian Su
- Department of Pulmonary and Critical Medicine, The First Clinical Medical College of Three Gorges University, Yichang Central People’s Hospital, Yi Chang, Hubei 443000, China
| | - Zhu Jian
- Department of Pulmonary and Critical Medicine, The First Clinical Medical College of Three Gorges University, Yichang Central People’s Hospital, Yi Chang, Hubei 443000, China
| | - Miao Zou
- Department of Critical Care Medicine, The First Clinical Medical College of Three Gorges University, Yichang Central People’s Hospital, Yi Chang, Hubei 443000, China
| | - Huasheng Tong
- Department of Intensive Care Unit, General Hospital of Southern Theatre Command of PLA, Guangzhou, Guangdong 510000, China
| | - Peng Wan
- Department of Critical Care Medicine, The First Clinical Medical College of Three Gorges University, Yichang Central People’s Hospital, Yi Chang, Hubei 443000, China
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50
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Cox RM, Wolf JD, Lieberman NA, Lieber CM, Kang HJ, Sticher ZM, Yoon JJ, Andrews MK, Govindarajan M, Krueger RE, Sobolik EB, Natchus MG, Gewirtz AT, deSwart RL, Kolykhalov AA, Hekmatyar K, Sakamoto K, Greninger AL, Plemper RK. Therapeutic mitigation of measles-like immune amnesia and exacerbated disease after prior respiratory virus infections in ferrets. Nat Commun 2024; 15:1189. [PMID: 38331906 PMCID: PMC10853234 DOI: 10.1038/s41467-024-45418-5] [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: 11/03/2023] [Accepted: 01/23/2024] [Indexed: 02/10/2024] Open
Abstract
Measles cases have surged pre-COVID-19 and the pandemic has aggravated the problem. Most measles-associated morbidity and mortality arises from destruction of pre-existing immune memory by measles virus (MeV), a paramyxovirus of the morbillivirus genus. Therapeutic measles vaccination lacks efficacy, but little is known about preserving immune memory through antivirals and the effect of respiratory disease history on measles severity. We use a canine distemper virus (CDV)-ferret model as surrogate for measles and employ an orally efficacious paramyxovirus polymerase inhibitor to address these questions. A receptor tropism-intact recombinant CDV with low lethality reveals an 8-day advantage of antiviral treatment versus therapeutic vaccination in maintaining immune memory. Infection of female ferrets with influenza A virus (IAV) A/CA/07/2009 (H1N1) or respiratory syncytial virus (RSV) four weeks pre-CDV causes fatal hemorrhagic pneumonia with lung onslaught by commensal bacteria. RNAseq identifies CDV-induced overexpression of trefoil factor (TFF) peptides in the respiratory tract, which is absent in animals pre-infected with IAV. Severe outcomes of consecutive IAV/CDV infections are mitigated by oral antivirals even when initiated late. These findings validate the morbillivirus immune amnesia hypothesis, define measles treatment paradigms, and identify priming of the TFF axis through prior respiratory infections as risk factor for exacerbated morbillivirus disease.
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Affiliation(s)
- Robert M Cox
- Center for Translational Antiviral Research, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, 30303, USA
| | - Josef D Wolf
- Center for Translational Antiviral Research, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, 30303, USA
| | - Nicole A Lieberman
- Virology Division, Department of Laboratory Medicine, University of Washington, Seattle, WA, 98195, USA
| | - Carolin M Lieber
- Center for Translational Antiviral Research, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, 30303, USA
| | - Hae-Ji Kang
- Center for Translational Antiviral Research, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, 30303, USA
| | - Zachary M Sticher
- Emory Institute for Drug Development, Emory University, Atlanta, GA, 30322, USA
| | - Jeong-Joong Yoon
- Center for Translational Antiviral Research, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, 30303, USA
| | - Meghan K Andrews
- Emory Institute for Drug Development, Emory University, Atlanta, GA, 30322, USA
| | | | - Rebecca E Krueger
- Emory Institute for Drug Development, Emory University, Atlanta, GA, 30322, USA
| | - Elizabeth B Sobolik
- Virology Division, Department of Laboratory Medicine, University of Washington, Seattle, WA, 98195, USA
| | - Michael G Natchus
- Emory Institute for Drug Development, Emory University, Atlanta, GA, 30322, USA
| | - Andrew T Gewirtz
- Center for Translational Antiviral Research, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, 30303, USA
| | - Rik L deSwart
- Department of Viroscience, Erasmus MC, Rotterdam, Netherlands
| | | | - Khan Hekmatyar
- Advanced Translational Imaging Facility, Georgia State University, Atlanta, GA, 30303, USA
| | - Kaori Sakamoto
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Alexander L Greninger
- Virology Division, Department of Laboratory Medicine, University of Washington, Seattle, WA, 98195, USA
| | - Richard K Plemper
- Center for Translational Antiviral Research, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, 30303, USA.
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