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Sun L, Yue H, Fang H, Li R, Li S, Wang J, Tu P, Meng F, Yan W, Zhang J, Bignami E, Jeon K, Kidane B, Zhang P. The role and mechanism of PDZ binding kinase in hypobaric and hypoxic acute lung injury. J Thorac Dis 2024; 16:2082-2101. [PMID: 38617778 PMCID: PMC11009593 DOI: 10.21037/jtd-24-188] [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: 02/01/2024] [Accepted: 03/07/2024] [Indexed: 04/16/2024]
Abstract
Background Acute lung injury (ALI) caused by hypobaric hypoxia (HH) is frequently observed in high-altitude areas, and it is one of the leading causes of death in high-altitude-related diseases due to its rapid onset and progression. However, the pathogenesis of HH-related ALI (HHALI) remains unclear, and effective treatment approaches are currently lacking. Methods A new mouse model of HHALI developed by our laboratory was used as the study subject (Chinese patent No. ZL 2021 1 1517241 X). Real-time quantitative polymerase chain reaction (RT-qPCR) was used to detect the messenger RNA (mRNA) expression levels of PDZ-binding kinase (PBK), sirtuin 1 (SIRT1), and PTEN-induced kinase 1 (PINK1) in mouse lung tissue. Hematoxylin and eosin staining was used to observe the main types of damage and damaged cells in lung tissue, and the lung injury score was used for quantification. The wet-dry (W/D) ratio was used to measure lung water content. Enzyme-linked immunosorbent assay was used to detect changes in inflammatory factors and oxidative stress markers in the lungs. Western blotting verified the expression of various mitochondrial autophagy-related proteins. The 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimi-dazoylcarbocyanine iodide (JC-1) method was used determined the health status of mitochondria based on changes in mitochondrial membrane potential. Transmission electron microscopy was used to directly observe the morphology of mitochondria. Multicolor immunofluorescence was used to observe the levels of mitochondrial autophagy markers. Other signaling pathways and molecular mechanisms that may play a role in epithelial cells were analyzed via through RNA sequencing. Results Low pressure and hypoxia caused pathological changes in mouse lung tissue, mainly ALI, leading to increased levels of inflammatory factors and intensified oxidative stress response in the lungs. Overexpression of PBK was found to alleviate HHALI, and activation of the p53 protein was shown to abrogate this therapeutic effect, while activation of SIRT1 protein reactivated this therapeutic effect. The therapeutic effect of PBK on HHALI is achieved via the activation of mitochondrial autophagy. Finally, RNA sequencing demonstrated that besides mitochondrial autophagy, PBK also exerts other functions in HHALI. Conclusions Overexpression of PBK inhibits the expression of p53 and activates SIRT1-PINK1 axis mediated mitochondrial autophagy to alleviate HHALI.
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Affiliation(s)
- Linao Sun
- Graduate College of Tianjin Medical University, Tianjin, China
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Haoran Yue
- Graduate College of Tianjin Medical University, Tianjin, China
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Hao Fang
- Graduate College of Tianjin Medical University, Tianjin, China
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Runze Li
- Graduate College of Tianjin Medical University, Tianjin, China
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Shicong Li
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jianyao Wang
- Graduate College of Tianjin Medical University, Tianjin, China
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Pengjie Tu
- Graduate College of Tianjin Medical University, Tianjin, China
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Fei Meng
- Graduate College of Tianjin Medical University, Tianjin, China
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Wang Yan
- Graduate College of Tianjin Medical University, Tianjin, China
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jinxia Zhang
- Xianrenchang (Tianjin) Medical Technology Co., Ltd., Tianjin, China
| | - Elena Bignami
- Anesthesiology, Critical Care and Pain Medicine Division, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Kyeongman Jeon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Biniam Kidane
- Section of Thoracic Surgery, University of Manitoba, Winnipeg, MB, Canada
| | - Peng Zhang
- Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China
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Wang S, Jiang D, Huang F, Qian Y, Qi M, Li H, Wang X, Wang Z, Wang K, Wang Y, Du P, Zhan B, Zhou R, Chu L, Yang X. Therapeutic effect of Echinococcus granulosus cyst fluid on bacterial sepsis in mice. Parasit Vectors 2023; 16:450. [PMID: 38066526 PMCID: PMC10709918 DOI: 10.1186/s13071-023-06021-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/18/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND The primary pathophysiological process of sepsis is to stimulate a massive release of inflammatory mediators to trigger systemic inflammatory response syndrome (SIRS), the major cause of multi-organ dysfunction and death. Like other helminths, Echinococcus granulosus induces host immunomodulation. We sought to determine whether E. granulosus cyst fluid (EgCF) displays a therapeutic effect on sepsis-induced inflammation and tissue damage in a mouse model. METHODS The anti-inflammatory effects of EgCF were determined by in vitro culture with bone marrow-derived macrophages (BMDMs) and in vivo treatment of BALB/C mice with cecal ligation and puncture (CLP)-induced sepsis. The macrophage phenotypes were determined by flow cytometry, and the levels of cytokines in cell supernatants or in sera of mice were measured (ELISA). The therapeutic effect of EgCF on sepsis was evaluated by observing the survival rates of mice for 72 h after CLP, and the pathological injury to the liver, kidney, and lung was measured under a microscope. The expression of TLR-2/MyD88 in tissues was measured by western blot to determine whether TLR-2/MyD88 is involved in the sepsis-induced inflammatory signaling pathway. RESULTS In vitro culture with BMDMs showed that EgCF promoted macrophage polarization to M2 type and inhibited lipopolysaccharide (LPS)-induced M1 macrophages. EgCF treatment provided significant therapeutic effects on CLP-induced sepsis in mice, with increased survival rates and alleviation of tissue injury. The EgCF conferred therapeutic efficacy was associated with upregulated anti-inflammatory cytokines (IL-10 and TGF-β) and reduced pro-inflammatory cytokines (TNF-α and INF-γ). Treatment with EgCF induced Arg-1-expressed M2, and inhibited iNOS-expressed M1 macrophages. The expression of TLR-2 and MyD88 in EgCF-treated mice was reduced. CONCLUSIONS The results demonstrated that EgCF confers a therapeutic effect on sepsis by inhibiting the production of pro-inflammatory cytokines and inducing regulatory cytokines. The anti-inflammatory effect of EgCF is carried out possibly through inducing macrophage polarization from pro-inflammatory M1 to regulatory M2 phenotype to reduce excessive inflammation of sepsis and subsequent multi-organ damage. The role of EgCF in regulating macrophage polarization may be achieved by inhibiting the TLR2/MyD88 signaling pathway.
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Affiliation(s)
- Shuying Wang
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
- Department of Pediatrics, Anqing First People's Hospital of Anhui Medical University, Anqing, 246000, China
| | - Donghui Jiang
- Department of Critical Care Medicine, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
| | - Feifei Huang
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Yayun Qian
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Meitao Qi
- Department of Pediatrics, Anqing First People's Hospital of Anhui Medical University, Anqing, 246000, China
| | - Huihui Li
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Xiaoli Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Zhi Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Kaigui Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Yin Wang
- Department of Critical Care Medicine, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
| | - Pengfei Du
- Department of Critical Care Medicine, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
| | - Bin Zhan
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Rui Zhou
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
| | - Liang Chu
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China.
- Second Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China.
| | - Xiaodi Yang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China.
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Wu L, Yin W, Wen J, Wang S, Li H, Wang X, Zhang W, Duan S, Zhu Q, Gao E, Wu S, Zhan B, Zhou R, Yang X. Excretory/secretory products from Trichinella spiralis adult worms ameliorate myocardial infarction by inducing M2 macrophage polarization in a mouse model. Parasit Vectors 2023; 16:362. [PMID: 37845695 PMCID: PMC10577921 DOI: 10.1186/s13071-023-05930-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/14/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND Ischemia-induced inflammatory response is the main pathological mechanism of myocardial infarction (MI)-caused heart tissue injury. It has been known that helminths and worm-derived proteins are capable of modulating host immune response to suppress excessive inflammation as a survival strategy. Excretory/secretory products from Trichinella spiralis adult worms (Ts-AES) have been shown to ameliorate inflammation-related diseases. In this study, Ts-AES were used to treat mice with MI to determine its therapeutic effect on reducing MI-induced heart inflammation and the immunological mechanism involved in the treatment. METHODS The MI model was established by the ligation of the left anterior descending coronary artery, followed by the treatment of Ts-AES by intraperitoneal injection. The therapeutic effect of Ts-AES on MI was evaluated by measuring the heart/body weight ratio, cardiac systolic and diastolic functions, histopathological change in affected heart tissue and observing the 28-day survival rate. The effect of Ts-AES on mouse macrophage polarization was determined by stimulating mouse bone marrow macrophages in vitro with Ts-AES, and the macrophage phenotype was determined by flow cytometry. The protective effect of Ts-AES-regulated macrophage polarization on hypoxic cardiomyocytes was determined by in vitro co-culturing Ts-AES-induced mouse bone marrow macrophages with hypoxic cardiomyocytes and cardiomyocyte apoptosis determined by flow cytometry. RESULTS We observed that treatment with Ts-AES significantly improved cardiac function and ventricular remodeling, reduced pathological damage and mortality in mice with MI, associated with decreased pro-inflammatory cytokine levels, increased regulatory cytokine expression and promoted macrophage polarization from M1 to M2 type in MI mice. Ts-AES-induced M2 macrophage polarization also reduced apoptosis of hypoxic cardiomyocytes in vitro. CONCLUSIONS Our results demonstrate that Ts-AES ameliorates MI in mice by promoting the polarization of macrophages toward the M2 type. Ts-AES is a potential pharmaceutical agent for the treatment of MI and other inflammation-related diseases.
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Affiliation(s)
- Lingqin Wu
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
- Second Affiliated Hospital of Jiaxing University, Jiaxing, 314000, China
| | - Wenhui Yin
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
| | - Jutai Wen
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Shuying Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
| | - Huihui Li
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
- Basic Medical College of Bengbu Medical College, Bengbu, 233000, China
| | - Xiaoli Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
- Basic Medical College of Bengbu Medical College, Bengbu, 233000, China
| | - Weixiao Zhang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
| | - Shuyao Duan
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Qiuyu Zhu
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Erhe Gao
- Lewis Katz School of Medicine, Temple University, Philadelphia, PA, 19140, USA
| | - Shili Wu
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
| | - Bin Zhan
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Rui Zhou
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China.
| | - Xiaodi Yang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China.
- Basic Medical College of Bengbu Medical College, Bengbu, 233000, China.
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Khosravi M, Mohammad Rahimi H, Nazari A, Baghaei K, Asadzadeh Aghdaei H, Shahrokh S, Sharifdini M, Torrecilhas AC, Mehryab F, Mirjalali H, Shekari F, Zali MR. Characterisation of extracellular vesicles isolated from hydatid cyst fluid and evaluation of immunomodulatory effects on human monocytes. J Cell Mol Med 2023; 27:2614-2625. [PMID: 37530547 PMCID: PMC10468670 DOI: 10.1111/jcmm.17894] [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: 07/27/2022] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/03/2023] Open
Abstract
Hydatidosis is a disease caused by the larval stage of Echinococcus granulosus, which involves several organs of intermediate hosts. Evidence suggests a communication between hydatid cyst (HC) and hosts via extracellular vesicles. However, a little is known about the communication between EVs derived from HC fluid (HCF) and host cells. In the current study, EVs were isolated using differential centrifugation from sheep HCF and characterized by western blot, electron microscope and size distribution analysis. The uptake of EVs by human monocyte cell line (THP-1) was evaluated. The effects of EVs on the expression levels of pro- and anti-inflammatory cytokines were investigated using quantitative real-time PCR (RT-PCR), 3 and 24 h after incubation. Moreover, the cytokine level of IL-10 was evaluated in supernatant of THP-1 cell line at 3 and 24 h. EVs were successfully isolated and showed spherical shape with size distribution at 130.6 nm. After 3 h, the expression levels of pro-inflammatory cytokine genes (IL1Β, IL15 and IL8) were upregulated, while after 24 h, the expression levels of pro-inflammatory cytokines were decreased and IL13 gene expression showed upregulation. A statistically significant increase was seen in the levels of IL-10 after 24 h. The main mechanism of the communication between EVs derived from HCF and their host remains unclear; however, time-dependent anti-inflammatory effects in our study suggest that HC may modulate the immune responses via EVs.
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Affiliation(s)
- Mojdeh Khosravi
- Department of Pharmacy and Pharmaceutical Technology and ParasitologyUniversity of ValenciaValenciaSpain
| | - Hanieh Mohammad Rahimi
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver DiseasesShahid Beheshti University of Medical SciencesTehranIran
| | - Abdoreza Nazari
- Department of Molecular Systems Biology at Cell Science Research CenterRoyan Institute for Stem Cell Biology and TechnologyTehranIran
| | - Kaveh Baghaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver DiseasesShahid Beheshti University of Medical SciencesTehranIran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver DiseasesShahid Beheshti University of Medical SciencesTehranIran
| | - Shabnam Shahrokh
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver DiseasesShahid Beheshti University of Medical SciencesTehranIran
| | - Meysam Sharifdini
- Department of Medical Parasitology and Mycology, School of MedicineGuilan University of Medical SciencesRashtIran
| | - Ana Claudia Torrecilhas
- Laboratório de Imunologia Celular e Bioquímica de Fungos e Protozoários, Departamento de Ciências FarmacêuticasUniversidade Federal de São Paulo (UNIFESP)DiademaBrazil
| | - Fatemeh Mehryab
- Department of Molecular Systems Biology at Cell Science Research CenterRoyan Institute for Stem Cell Biology and TechnologyTehranIran
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of PharmacyShahid Beheshti University of Medical SciencesTehranIran
| | - Hamed Mirjalali
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver DiseasesShahid Beheshti University of Medical SciencesTehranIran
| | - Faezeh Shekari
- Department of Molecular Systems Biology at Cell Science Research CenterRoyan Institute for Stem Cell Biology and TechnologyTehranIran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver DiseasesShahid Beheshti University of Medical SciencesTehranIran
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Cai Y, Wei K. Comparative analysis of intestinal microbiota composition and transcriptome in diploid and triploid Carassius auratus. BMC Microbiol 2023; 23:1. [PMID: 36593453 PMCID: PMC9806896 DOI: 10.1186/s12866-022-02709-5] [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: 09/14/2022] [Accepted: 11/21/2022] [Indexed: 01/03/2023] Open
Abstract
Polyploidy and the microbiome are crucial factors in how a host organism responds to disease. However, little is known about how triploidization and microbiome affect the immune response and disease resistance in the fish host. Therefore, this study aims to identify the relationship between intestinal microbiota composition, transcriptome changes, and disease resistance in triploid Carassius auratus (3nCC). In China's central Dongting lake water system, diploid (2nCC) and triploid Carassius auratus were collected, then 16S rRNA and mRNA sequencing were used to examine the microbes and gene expression in the intestines. 16S rRNA sequencing demonstrated that triploidization altered intestinal richness, as well as the diversity of commensal bacteria in 3nCC. In addition, the abundance of the genus Vibrio in 3nCC was increased compared to 2nCC (P < 0.05). Furthermore, differential expression analysis of 3nCC revealed profound up-regulation of 293 transcripts, while 324 were down-regulated. Several differentially expressed transcripts were related to the immune response pathway in 3nCC, including NLRP3, LY9, PNMA1, MR1, PELI1, NOTCH2, NFIL3, and NLRC4. Taken together, triploidization can alter bacteria composition and abundance, which can in turn result in changes in expression of genes. This study offers an opportunity for deciphering the molecular mechanism underlying disease resistance after triploidization.
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Affiliation(s)
- Yidan Cai
- grid.488482.a0000 0004 1765 5169Medical College, Hunan University of Chinese Medicine, Changsha, 410208 Hunan China
| | - Ke Wei
- grid.488482.a0000 0004 1765 5169Medical College, Hunan University of Chinese Medicine, Changsha, 410208 Hunan China
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Gao YL, Liu YC, Zhang X, Shou ST, Chai YF. Insight Into Regulatory T Cells in Sepsis-Associated Encephalopathy. Front Neurol 2022; 13:830784. [PMID: 35370925 PMCID: PMC8965708 DOI: 10.3389/fneur.2022.830784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/18/2022] [Indexed: 01/09/2023] Open
Abstract
Sepsis-associated encephalopathy (SAE) is a diffuse central nervous system (CNS) dysfunction during sepsis, and is associated with increased mortality and poor outcomes in septic patients. Despite the high incidence and clinical relevance, the exact mechanisms driving SAE pathogenesis are not yet fully understood, and no specific therapeutic strategies are available. Regulatory T cells (Tregs) have a role in SAE pathogenesis, thought to be related with alleviation of sepsis-induced hyper-inflammation and immune responses, promotion of T helper (Th) 2 cells functional shift, neuroinflammation resolution, improvement of the blood-brain barrier (BBB) function, among others. Moreover, in a clinical point of view, these cells have the potential value of improving neurological and psychiatric/mental symptoms in SAE patients. This review aims to provide a general overview of SAE from its initial clinical presentation to long-term cognitive impairment and summarizes the main features of its pathogenesis. Additionally, a detailed overview on the main mechanisms by which Tregs may impact SAE pathogenesis is given. Finally, and considering that Tregs may be a novel target for immunomodulatory intervention in SAE, different therapeutic options, aiming to boost peripheral and brain infiltration of Tregs, are discussed.
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Affiliation(s)
- Yu-lei Gao
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
- Yu-lei Gao
| | - Yan-cun Liu
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiang Zhang
- Department of Emergency Medicine, Rizhao People's Hospital of Shandong Province, Rizhao, China
| | - Song-tao Shou
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan-fen Chai
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
- *Correspondence: Yan-fen Chai
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Gao YL, Yao Y, Zhang X, Chen F, Meng XL, Chen XS, Wang CL, Liu YC, Tian X, Shou ST, Chai YF. Regulatory T Cells: Angels or Demons in the Pathophysiology of Sepsis? Front Immunol 2022; 13:829210. [PMID: 35281010 PMCID: PMC8914284 DOI: 10.3389/fimmu.2022.829210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 02/07/2022] [Indexed: 12/12/2022] Open
Abstract
Sepsis is a syndrome characterized by life-threatening organ dysfunction caused by the dysregulated host response to an infection. Sepsis, especially septic shock and multiple organ dysfunction is a medical emergency associated with high morbidity, high mortality, and prolonged after-effects. Over the past 20 years, regulatory T cells (Tregs) have been a key topic of focus in all stages of sepsis research. Tregs play a controversial role in sepsis based on their heterogeneous characteristics, complex organ/tissue-specific patterns in the host, the multi-dimensional heterogeneous syndrome of sepsis, the different types of pathogenic microbiology, and even different types of laboratory research models and clinical research methods. In the context of sepsis, Tregs may be considered both angels and demons. We propose that the symptoms and signs of sepsis can be attenuated by regulating Tregs. This review summarizes the controversial roles and Treg checkpoints in sepsis.
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Affiliation(s)
- Yu-lei Gao
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
- *Correspondence: Yan-fen Chai, ; Yu-lei Gao,
| | - Ying Yao
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiang Zhang
- Department of Emergency Medicine, Rizhao People’s Hospital of Shandong Province, Rizhao, China
| | - Fang Chen
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiang-long Meng
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Xin-sen Chen
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Chao-lan Wang
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan-cun Liu
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Xin Tian
- Department of Medical Research, Beijing Qiansong Technology Development Company, Beijing, China
| | - Song-tao Shou
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan-fen Chai
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
- *Correspondence: Yan-fen Chai, ; Yu-lei Gao,
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Ke J, Chen M, Ma S, Zhang L, Zhang L. Circular RNA VMA21 ameliorates lung injury in septic rat via targeting microRNA-497-5p/CD2-associated protein axis. Bioengineered 2022; 13:5453-5466. [PMID: 35172672 PMCID: PMC8973665 DOI: 10.1080/21655979.2022.2031406] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Sepsis was characterized via an acute inflammatory response to infection, often accompanying by multiple organ failure, particularly lung damage. Circular RNA (circRNA) played an important role in the pathology of a variety of diseases. However, the role of circRNA in sepsis-induced lung injury (LI) remained unknown. This study was to explore the expression and role of circVMA21 in sepsis LI and the possible molecular mechanism. The results manifested circVMA21 and CD2-associated protein (CD2AP) were down-regulated in lung tissue and lipopolysaccharide (LPS)-treated BEAS-2B, while microRNA (miR)-497-5p was up-regulated. A large number of deaths in rats after surgery of 72 h were caused via cecal ligation-perforation surgery, W/D value and Bax positive cells were increased, LI was caused, cell apoptosis, tumor necrosis factor-α, Interleukin (IL)-1β and IL-6 expression were promoted and Bcl-2 positive cells were decreased. Overexpression of circVMA21 ameliorated these phenomena. In addition, LPS-induced apoptosis and inflammation of BEAS-2B cells was improved via overexpression of circVMA21, while overexpression of miR-497-5P was opposite. Apoptosis, inflammation, and oxidative damage of BEAS-2B cells were aggravated via knockdown of circVMA21, but it was reversed by knockdown of miR-497-5p or overexpression of CD2AP. Mechanistically, CircVMA21 mediated CD2AP expression through competitive adsorption of miR-497-5p. In conclusion, this work showed circVMA21 improved LI in sepsis rats by targeting miR-497-5p/CD2AP axis, suggesting that circVMA21 may be a novel therapeutic target for sepsis-induced LI.
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Affiliation(s)
- JinFang Ke
- Department of Emergency, People's Hospital of Ningxia Hui Autonomous Region, YinChuan City, NingXia Hui Autonomous Region, China
| | - MengFei Chen
- Department of Emergency, People's Hospital of Ningxia Hui Autonomous Region, YinChuan City, NingXia Hui Autonomous Region, China
| | - ShiLan Ma
- Department of Emergency, People's Hospital of Ningxia Hui Autonomous Region, YinChuan City, NingXia Hui Autonomous Region, China
| | - Liang Zhang
- Department of Emergency, People's Hospital of Ningxia Hui Autonomous Region, YinChuan City, NingXia Hui Autonomous Region, China
| | - Ling Zhang
- Department of Emergency, People's Hospital of Ningxia Hui Autonomous Region, YinChuan City, NingXia Hui Autonomous Region, China
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9
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Cai P, Mu Y, McManus DP. The Fight Against Severe COVID-19: Can Parasitic Worms Contribute? Front Immunol 2022; 13:849465. [PMID: 35222441 PMCID: PMC8874793 DOI: 10.3389/fimmu.2022.849465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 01/21/2022] [Indexed: 12/15/2022] Open
Affiliation(s)
- Pengfei Cai
- *Correspondence: Pengfei Cai, .; Donald P. McManus,
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