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Ma L, Li H, Xu H, Liu D. The potential roles of PKM2 in cerebrovascular diseases. Int Immunopharmacol 2024; 139:112675. [PMID: 39024754 DOI: 10.1016/j.intimp.2024.112675] [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: 05/29/2024] [Revised: 07/06/2024] [Accepted: 07/10/2024] [Indexed: 07/20/2024]
Abstract
Pyruvate kinase M2 (PKM2), a key enzyme involved in glycolysis,plays an important role in regulating cell metabolism and growth under different physiological conditions. PKM2 has been intensively investigated in multiple cancer diseases. Recent years, many studies have found its pivotal role in cerebrovascular diseases (CeVDs), the disturbances in intracranial blood circulation. CeVDs has been confirmed to be closely associated with oxidative stress (OS), mitochondrial dynamics, systemic inflammation, and local neuroinflammation in the brain. It has further been revealed that PKM2 exerts various biological functions in the regulation of energy supply, OS, inflammatory responses, and mitochondrial dysfunction. The roles of PKM2 are closely related to its different isoforms, expression levels in subcellular localization, and post-translational modifications. Therefore, summarizing the roles of PKM2 in CeVDs will help further understanding the molecular mechanisms of CeVDs. In this review, we illustrate the characteristics of PKM2, the regulated PKM2 expression, and the biological roles of PKM2 in CeVDs.
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Affiliation(s)
- Ling Ma
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, China
| | - Huatao Li
- Department of Stroke Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Hu Xu
- Department of Stroke Center, Shandong Second Medical University, Weifang, Shandong 261000, China
| | - Dianwei Liu
- Department of Stroke Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China; Department of Neurosurgery, XuanWu Hospital Capital Medical University Jinan Branch, Jinan, Shandong 250100, China.
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Liu S, Yang T, Jiang Q, Zhang L, Shi X, Liu X, Li X. Lactate and Lactylation in Sepsis: A Comprehensive Review. J Inflamm Res 2024; 17:4405-4417. [PMID: 39006496 PMCID: PMC11244620 DOI: 10.2147/jir.s459185] [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: 01/25/2024] [Accepted: 05/02/2024] [Indexed: 07/16/2024] Open
Abstract
Sepsis is a disorder of the immune response to infection or infectious factors with high morbidity and mortality in clinical settings. The lactylation of lysine residues, fueled by lactate, plays a pivotal role in its pathophysiology. In conducting a literature review on sepsis-related research, we employed a systematic approach to ensure comprehensiveness and accuracy. Initially, we conducted an extensive literature search through the PubMed database, utilizing a range of keywords including "sepsis", "lactate", "lactylation", and "epigenetic modification". The aim was to capture the most recent research related to the pathophysiological mechanisms of sepsis, metabolic disorders, and the role of lactylation. The results of the literature review revealed a close link between sepsis and metabolic dysfunction, particularly the pivotal role of lactylation in regulating immune responses and inflammatory processes. Lactate, not only an energy metabolic byproduct produced during glycolysis, affects the activity of various proteins, including those involved in immune regulation and cell signaling, through lactylation. In the context of sepsis, changes in the levels of lactylation may be closely associated with the severity and prognosis of the disease. In summary, lactylation, as an emerging type of epigenetic modification, provides a new perspective for the diagnosis and treatment of sepsis. Future research needs to further elucidate the exact mechanisms of lactylation in sepsis and explore its potential as a therapeutic target.
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Affiliation(s)
- Sijia Liu
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Ting Yang
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Qingsong Jiang
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Liang Zhang
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Xinhui Shi
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Xin Liu
- Medical Research Center, Southwest Hospital, Third Military Medical University, Chongqing, People’s Republic of China
| | - Xiaoli Li
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
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Liang Y, Ren T, Li R, Yu Z, Wang Y, Zhang X, Qin Z, Li J, Hu J, Luo C. Natural Products with Potential Effects on Hemorrhoids: A Review. Molecules 2024; 29:2673. [PMID: 38893547 PMCID: PMC11173953 DOI: 10.3390/molecules29112673] [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: 05/16/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024] Open
Abstract
Hemorrhoid disease is a common anorectal disorder affecting populations worldwide, with high prevalence, treatment difficulties, and considerable treatment costs. Compared to other treatment options, medical therapy for hemorrhoids offers minimal harm, more dignity to patients, and is more economical. Unfortunately, there are few chemical hemorrhoid medications available clinically, which makes the search for efficacious, cost-effective, and environmentally friendly new medication classes a focal point of research. In this context, searching for available natural products to improve hemorrhoids exhibits tremendous potential. These products are derived from nature, predominantly from plants, with a minor portion coming from animals, fungi, and algae. They have excellent coagulation pathway regulation, anti-inflammatory, antibacterial, and tissue regeneration activities. Therefore, we take the view that they are a class of potential hemorrhoid drugs, prevention products, and medication add-on ingredients. This article first reviews the factors contributing to the development of hemorrhoids, types, primary symptoms, and the mechanisms of natural products for hemorrhoids. Building on this foundation, we screened natural products with potential hemorrhoid improvement activity, including polyphenols and flavonoids, terpenes, polysaccharides, and other types.
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Affiliation(s)
- Yicheng Liang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.L.); (T.R.); (R.L.); (Y.W.); (X.Z.); (Z.Q.); (J.L.)
| | - Tankun Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.L.); (T.R.); (R.L.); (Y.W.); (X.Z.); (Z.Q.); (J.L.)
| | - Ruyi Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.L.); (T.R.); (R.L.); (Y.W.); (X.Z.); (Z.Q.); (J.L.)
| | - Zhonghui Yu
- School of Clinical Medicine, North Sichuan Medical College, Nanchong 637002, China;
| | - Yu Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.L.); (T.R.); (R.L.); (Y.W.); (X.Z.); (Z.Q.); (J.L.)
| | - Xin Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.L.); (T.R.); (R.L.); (Y.W.); (X.Z.); (Z.Q.); (J.L.)
| | - Zonglin Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.L.); (T.R.); (R.L.); (Y.W.); (X.Z.); (Z.Q.); (J.L.)
| | - Jinlong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.L.); (T.R.); (R.L.); (Y.W.); (X.Z.); (Z.Q.); (J.L.)
| | - Jing Hu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.L.); (T.R.); (R.L.); (Y.W.); (X.Z.); (Z.Q.); (J.L.)
| | - Chuanhong Luo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.L.); (T.R.); (R.L.); (Y.W.); (X.Z.); (Z.Q.); (J.L.)
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He J, Yi J, Ji L, Dai L, Chen Y, Xue W. ECHDC2 inhibits the proliferation of gastric cancer cells by binding with NEDD4 to degrade MCCC2 and reduce aerobic glycolysis. Mol Med 2024; 30:69. [PMID: 38783226 PMCID: PMC11118108 DOI: 10.1186/s10020-024-00832-9] [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: 01/04/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND The Enoyl-CoA hydratase/isomerase family plays a crucial role in the metabolism of tumors, being crucial for maintaining the energy balance and biosynthetic needs of cancer cells. However, the enzymes within this family that are pivotal in gastric cancer (GC) remain unclear. METHODS We employed bioinformatics techniques to identify key Enoyl-CoA hydratase/isomerase in GC. The expression of ECHDC2 and its clinical significance were validated through tissue microarray analysis. The role of ECHDC2 in GC was further assessed using colony formation assays, CCK8 assay, EDU assay, Glucose and lactic acid assay, and subcutaneous tumor experiments in nude mice. The mechanism of action of ECHDC2 was validated through Western blotting, Co-immunoprecipitation, and immunofluorescence experiments. RESULTS Our analysis of multiple datasets indicates that low expression of ECHDC2 in GC is significantly associated with poor prognosis. Overexpression of ECHDC2 notably inhibits aerobic glycolysis and proliferation of GC cells both in vivo and in vitro. Further experiments revealed that overexpression of ECHDC2 suppresses the P38 MAPK pathway by inhibiting the protein level of MCCC2, thereby restraining glycolysis and proliferation in GC cells. Ultimately, it was discovered that ECHDC2 promotes the ubiquitination and subsequent degradation of MCCC2 protein by binding with NEDD4. CONCLUSIONS These findings underscore the pivotal role of the ECHDC2 in regulating aerobic glycolysis and proliferation in GC cells, suggesting ECHDC2 as a potential therapeutic target in GC.
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Affiliation(s)
- Jiancheng He
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China
| | - Jianfeng Yi
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China
| | - Li Ji
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China
| | - Lingchen Dai
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China
| | - Yu Chen
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, 226001, China.
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China.
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China.
| | - Wanjiang Xue
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, 226001, China.
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China.
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Lin R, Lin Y, Wang J, Peng L. Regulation of mouse digestive function, intestinal mucosal barrier function, and inflammatory reaction by lycium barbarum polysaccharide pathway through myosin light chain kinase. Heliyon 2024; 10:e29795. [PMID: 38765174 PMCID: PMC11098784 DOI: 10.1016/j.heliyon.2024.e29795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 04/07/2024] [Accepted: 04/15/2024] [Indexed: 05/21/2024] Open
Abstract
This research investigated the impacts of lycium barbarum polysaccharide (LBP) on the digestive function, intestinal mucosal barrier function, inflammatory response, and myosin light chain kinase (MLCK) signaling pathway in immunosuppressed mice. 70 mg/kg cyclophosphamide was injected into abdomen for the preparation of immune suppression model. Healthy BALB/c mice served as control for the analysis of the differences in gastrointestinal motility and absorptive capacity, intestinal mucosal barrier function, the phagocytic ability of abdominal macrophages, serum immune factor and inflammatory factor levels, and the activation status of the MLCK signaling pathway after continuous gavage with 100 mg/kg LBP. Results revealed a decrease in d-xylose content, phagocytic rate, index of abdominal macrophages, and spleen index in the serum and urine of model mice compared to those of controls. In addition, levels of IgA, IgG, IgM, IL-6 (interleukin-6), IL-12, and interferon-γ (IFN-γ) decreased, while MLCK and myosin light chain (MLC) levels rose (P < 0.01). Versus those in Model group, urine d-xylose content, phagocytic rate, index of abdominal macrophages, spleen index, and the levels of IgA, IgG, IgM, IL-6, IL-12, and IFN-γ of mice undergoing the gavage with LBP increased, while MLCK and p-MLC levels declined (P < 0.05). In conclusion, LBP improved digestive absorption and immune function of immunosuppressed mice and regulated intestinal mucosal barrier immune system by inhibiting MLCK signaling pathway activation.
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Affiliation(s)
- Runli Lin
- Fuzhou Hushan Medical Research Institute, Hushan Lin's, Fuzhou 350001, Fujian Province, China
| | - Yuehan Lin
- Fuzhou Hushan Medical Research Institute, Hushan Lin's, Fuzhou 350001, Fujian Province, China
| | - Jinhe Wang
- Fuzhou Hushan Medical Research Institute, Hushan Lin's, Fuzhou 350001, Fujian Province, China
| | - LiJuan Peng
- Fuzhou Hushan Medical Research Institute, Hushan Lin's, Fuzhou 350001, Fujian Province, China
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Ruan H, Zhang Q, Zhang YP, Li SS, Ran X. Unraveling the role of HIF-1α in sepsis: from pathophysiology to potential therapeutics-a narrative review. Crit Care 2024; 28:100. [PMID: 38539163 PMCID: PMC10976824 DOI: 10.1186/s13054-024-04885-4] [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: 01/29/2024] [Accepted: 03/20/2024] [Indexed: 04/06/2024] Open
Abstract
Sepsis is characterized by organ dysfunction resulting from a dysregulated inflammatory response triggered by infection, involving multifactorial and intricate molecular mechanisms. Hypoxia-inducible factor-1α (HIF-1α), a notable transcription factor, assumes a pivotal role in the onset and progression of sepsis. This review aims to furnish a comprehensive overview of HIF-1α's mechanism of action in sepsis, scrutinizing its involvement in inflammatory regulation, hypoxia adaptation, immune response, and organ dysfunction. The review encompasses an analysis of the structural features, regulatory activation, and downstream signaling pathways of HIF-1α, alongside its mechanism of action in the pathophysiological processes of sepsis. Furthermore, it will delve into the roles of HIF-1α in modulating the inflammatory response, including its association with inflammatory mediators, immune cell activation, and vasodilation. Additionally, attention will be directed toward the regulatory function of HIF-1α in hypoxic environments and its linkage with intracellular signaling, oxidative stress, and mitochondrial damage. Finally, the potential therapeutic value of HIF-1α as a targeted therapy and its significance in the clinical management of sepsis will be discussed, aiming to serve as a significant reference for an in-depth understanding of sepsis pathogenesis and potential therapeutic targets, as well as to establish a theoretical foundation for clinical applications.
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Affiliation(s)
- Hang Ruan
- Department of Critical-Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave, Wuhan, 430030, People's Republic of China
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qin Zhang
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - You-Ping Zhang
- Department of Critical-Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave, Wuhan, 430030, People's Republic of China
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shu-Sheng Li
- Department of Critical-Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave, Wuhan, 430030, People's Republic of China.
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Xiao Ran
- Department of Critical-Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave, Wuhan, 430030, People's Republic of China.
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Xiaodan J, Yuanting L, Xiaodan L, Huibin L, Nana Z, Shuxuan L, Yiren W, Xuemin L. Effectiveness and safety of Jiejing Runmu decoction in treatment of dry eye disease. Explore (NY) 2024; 20:102984. [PMID: 38458955 DOI: 10.1016/j.explore.2024.02.002] [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: 09/13/2023] [Revised: 01/10/2024] [Accepted: 02/13/2024] [Indexed: 03/10/2024]
Abstract
OBJECTIVE To investigate the effectiveness and safety of Jiejing Runmu decoction in relieving the clinical manifestations of dry eye disease (DED). DESIGN AND INTERVENTIONS This single-arm prospective intervention study was conducted at the Peking University Third Hospital and People's Hospital of Yongqing. Of the 211 patients recruited, 200 completing the follow-up were included in the analysis. Patients received Jiejing Runmu decoction once a day for 4 weeks continuously, without any change in eye care habits. Individuals were evaluated at four time points: pretreatment (baseline), 2 weeks, 1 month, and 3 months (2 months after completion of treatment), using the Ocular Surface Disease Index (OSDI), tear film breakup time (TBUT), corneal fluorescein staining, Schirmer test I and meibomian gland assessments. Adverse effects were evaluated at each follow-up visit and systematic examinations were performed during the first and last visits. RESULTS OSDI, TBUT, corneal fluorescein staining, Schirmer test I, meibomian gland expressibility, and quality of secretions improved at 2 weeks, 1 month and 3 months compared to baseline (P < 0.0001). No significant differences were found between the sexes. Patients above 45 years showed worse subjective symptoms and objective signs, and greater improvements in corneal fluorescein staining, meibomian gland expressibility, and quality of secretions were observed in this group. No obvious adverse effects were detected during any follow-up visit. CONCLUSION Jiejing Runmu decoction significantly improved both the subjective symptoms and objective signs of DED, with favorable tolerance.
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Affiliation(s)
- Jiang Xiaodan
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, PR China
| | - Li Yuanting
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, PR China
| | - Li Xiaodan
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Sports Injuries, Beijing 100191, PR China; Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Lv Huibin
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, PR China
| | - Zhao Nana
- Department of Ophthalmology, People's hospital of YongQing, Hebei, China
| | - Lv Shuxuan
- Department of Ophthalmology, People's hospital of YongQing, Hebei, China
| | - Wang Yiren
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, PR China
| | - Li Xuemin
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, PR China.
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Xie W, Chen HG, Chen RH, Zhao C, Gong XJ, Zhou X. Intervention effect of Lycium barbarum polysaccharide on lead-induced kidney injury mice and its mechanism: A study based on the PI3K/Akt/mTOR signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117197. [PMID: 37722516 DOI: 10.1016/j.jep.2023.117197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/22/2023] [Accepted: 09/14/2023] [Indexed: 09/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The traditional medicinal application of Lycium barbarum is centered on the improvement of eyesight, as well as the nourishment of liver and kidney functions. Lycium barbarum polysaccharide (LBP), serving as the principal active constituent of Lycium barbarum, has been identified as the main contributor to these beneficial effects. Previous studies have indicated that Lycium barbarum polysaccharide exhibits a renoprotective effect against lead-induced injury, but its mechanism and efficacy remain unclear. AIM OF THE STUDY The objective of this study was to examine the effectiveness of LBP in preventing lead-induced renal injury and investigate both the toxic mechanism of lead-induced renal injury and the efficacy mechanism of LBP against it, with a focus on the PI3K/AKT/mTOR signaling pathway. MATERIALS AND METHODS The drug effect and mechanism of LBP on lead-induced kidney injury were investigated by administering positive drugs and LBP to mice with established lead-induced kidney injury. RESULTS The renal function of mice with lead-induced renal injury was significantly restored, renal tissue lesions and renal mitochondrial damage were delayed, a disorder of hematological parameters induced by lead was improved, the increase of lead-induced renal index was reduced, and the body weight of mice with lead-induced renal injury was increased by the LBP intervention, as revealed by the results of pharmacodynamic experiments. Based on PI3K /AKT /mTOR signaling pathway, the toxic mechanism of lead-induced kidney injury and the pharmacodynamic mechanism of LBP against lead-induced kidney injury were studied. The results showed that lead could activate the TLR4 receptor, and then activate PI3K /AKT /mTOR signaling pathway, inhibit autophagy of kidney tissue cells, and enhance apoptosis of kidney tissue cells to induce kidney injury; LBP inhibits the activation of TLR4 receptor, which in turn inhibits the PI3K/AKT/mTOR signaling pathway, enhances the autophagy of kidney tissue cells, reduces the apoptosis of kidney tissues, and delays lead-induced kidney injury.
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Affiliation(s)
- Wen Xie
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Hua-Guo Chen
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Ru-Hai Chen
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Chao Zhao
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Xiao-Jian Gong
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Xin Zhou
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China.
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Su J, Wu S, Zhou F, Tong Z. Research Progress of Macromolecules in the Prevention and Treatment of Sepsis. Int J Mol Sci 2023; 24:13017. [PMID: 37629199 PMCID: PMC10455590 DOI: 10.3390/ijms241613017] [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: 07/03/2023] [Revised: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Sepsis is associated with high rates of mortality in the intensive care unit and accompanied by systemic inflammatory reactions, secondary infections, and multiple organ failure. Biological macromolecules are drugs produced using modern biotechnology to prevent or treat diseases. Indeed, antithrombin, antimicrobial peptides, interleukins, antibodies, nucleic acids, and lentinan have been used to prevent and treat sepsis. In vitro, biological macromolecules can significantly ameliorate the inflammatory response, apoptosis, and multiple organ failure caused by sepsis. Several biological macromolecules have entered clinical trials. This review summarizes the sources, efficacy, mechanism of action, and research progress of macromolecular drugs used in the prevention and treatment of sepsis.
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Gao Y, Xu X, Zhang X. Targeting different phenotypes of macrophages: A potential strategy for natural products to treat inflammatory bone and joint diseases. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 118:154952. [PMID: 37506402 DOI: 10.1016/j.phymed.2023.154952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/27/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Macrophages, a key class of immune cells, have a dual role in inflammatory responses, switching between anti-inflammatory M2 and pro-inflammatory M1 subtypes depending on the specific environment. Greater numbers of M1 macrophages correlate with increased production of inflammatory chemicals, decreased osteogenic potential, and eventually bone and joint disorders. Therefore, reversing M1 macrophages polarization is advantageous for lowering inflammatory factors. To better treat inflammatory bone disorders in the future, it may be helpful to gain insight into the specific mechanisms and natural products that modulate macrophage polarization. OBJECTIVE This review examines the impact of programmed cell death and different cells in the bone microenvironment on macrophage polarization, as well as the effects of natural products on the various phenotypes of macrophages, in order to suggest some possibilities for the treatment of inflammatory osteoarthritic disorders. METHODS Using 'macrophage polarization,' 'M1 macrophage' 'M2 macrophage' 'osteoporosis,' 'osteonecrosis of femoral head,' 'osteolysis,' 'gouty arthritis,' 'collagen-induced arthritis,' 'freund's adjuvant-induced arthritis,' 'adjuvant arthritis,' and 'rheumatoid arthritis' as search terms, the relevant literature was searched using the PubMed, the Cochrane Library and Web of Science databases. RESULTS Targeting macrophages through different signaling pathways has become a key mechanism for the treatment of inflammatory bone and joint diseases, including HIF-1α, NF-κB, AKT/mTOR, JAK1/2-STAT1, NF-κB, JNK, ERK, p-38α/β, p38/MAPK, PI3K/AKT, AMPK, AMPK/Sirt1, STAT TLR4/NF-κB, TLR4/NLRP3, NAMPT pathway, as well as the programmed cell death autophagy, pyroptosis and ERS. CONCLUSION As a result of a search of databases, we have summarized the available experimental and clinical evidence supporting herbal products as potential treatment agents for inflammatory osteoarthropathy. In this paper, we outline the various modulatory effects of natural substances targeting macrophages in various diseases, which may provide insight into drug options and directions for future clinical trials. In spite of this, more mechanistic studies on natural substances, as well as pharmacological, toxicological, and clinical studies are required.
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Affiliation(s)
- Yuhe Gao
- Graduate School, Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, Heilongjiang 150040, China
| | - Xilin Xu
- The Third Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150000, China.
| | - Xiaofeng Zhang
- Teaching and Research Section of Orthopedics and Traumatology, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150000, China.
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Kong E, Li Y, Ma P, Zhang Y, Ding R, Hua T, Yang M, Yuan H. Lyn-mediated glycolysis enhancement of microglia contributes to neuropathic pain through facilitating IRF5 nuclear translocation in spinal dorsal horn. J Cell Mol Med 2023; 27:1664-1681. [PMID: 37132040 PMCID: PMC10273059 DOI: 10.1111/jcmm.17759] [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: 02/17/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/04/2023] Open
Abstract
The pro-inflammatory phenotype of microglia usually induces neuroinflammatory reactions in neuropathic pain. Glycometabolism shift to glycolysis can promote the pro-inflammatory phenotype transition of microglia. The omics data analysis suggest a critical role for Lyn dysregulation in neuropathic pain. The present study aimed at exploring the mechanism of Lyn-mediated glycolysis enhancement of microglia in neuropathic pain. Neuropathic pain model was established by chronic constriction injury (CCI), then pain thresholds and Lyn expression were measured. Lyn inhibitor Bafetinib and siRNA-lyn knockdown were administrated intrathecally to evaluate the effects of Lyn on pain thresholds, glycolysis and interferon regulatory factor 5 (IRF5) nuclear translocation of microglia in vivo and in vitro. ChIP was carried out to observe the binding of transcription factors SP1, PU.1 to glycolytic gene promoters by IRF5 knockdown. Finally, the relationship between glycolysis and pro-inflammatory phenotype transition of microglia was evaluated. CCI led to the upregulation of Lyn expression and glycolysis enhancement in microglia of spinal dorsal horn. Bafetinib or siRNA-lyn knockdown intrathecally alleviated pain hyperalgesia, suppressed glycolysis enhancement and inhibited nuclear translocation of IRF5 in CCI mice. Also, IRF5 promoted the binding of transcription factors SP1, PU.1 to glycolytic gene promoters, and then the enhanced glycolysis facilitated the proliferation and pro-inflammatory phenotype transition of microglia and contributed to neuropathic pain. Lyn-mediated glycolysis enhancement of microglia contributes to neuropathic pain through facilitating IRF5 nuclear translocation in spinal dorsal horn.
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Affiliation(s)
- Erliang Kong
- Department of Anesthesiology, Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
- Department of AnesthesiologyThe 988th Hospital of Joint Logistic Support Force of Chinese People's Liberation ArmyZhengzhouChina
| | - Yongchang Li
- Department of Anesthesiology, Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Peng Ma
- Department of Anesthesiology, Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Yixuan Zhang
- Department of Anesthesiology, Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Ruifeng Ding
- Department of Anesthesiology, Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Tong Hua
- Department of Anesthesiology, Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Mei Yang
- Department of Anesthesiology, Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Hongbin Yuan
- Department of Anesthesiology, Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
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Yang Y, Sheng J, Sheng Y, Wang J, Zhou X, Li W, Kong Y. Lapachol treats non-alcoholic fatty liver disease by modulating the M1 polarization of Kupffer cells via PKM2. Int Immunopharmacol 2023; 120:110380. [PMID: 37244116 DOI: 10.1016/j.intimp.2023.110380] [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: 03/29/2023] [Revised: 05/08/2023] [Accepted: 05/21/2023] [Indexed: 05/29/2023]
Abstract
AIM This study investigated the mechanism of action of lapachol (LAP) against non-alcoholic fatty liver disease (NAFLD). METHODS Primary Kupffer cells (KCs) of rats were used for in-vitro experiments. The proportion of M1 cells was assayed by flow cytometry, the levels of M1 inflammatory markers were determined by enzyme-linked immunosorbent assay (ELISA) combined with real-time quantitative fluorescence PCR (RT-qPCR), the expression of p-PKM2 was detected by Western-Blotting. A SD rat model of NAFLD was established with high-fat diet. Following LAP intervention, the changes in blood glucose/lipid, insulin resistance and liver function were detected, and the hepatic histopathologic changes were examined by histological staining. RESULTS The results showed that LAP could inhibit the M1 polarization of KCs, lower the levels of inflammatory cytokines, and suppress the activation of PKM2. The effect of LAP could be counteracted after using PKM2 inhibitor PKM2-IN-1 or knocking out PKM2. Small molecule docking revealed that LAP could inhibit the phosphorylation process of PKM2 by binding to ARG-246, the phosphorylation site of PKM2. In rat experiments, LAP could ameliorate the liver function and lipid metabolism of NAFLD rats, and inhibit the hepatic histopathologic changes. CONCLUSION Our study found that LAP can inhibit the phosphorylation of PKM2 by binding to PKM2-ARG-246, thereby regulating the M1 polarization of KCs and inhibiting the inflammatory response of liver tissues to treat NAFLD. LAP has potential as a novel pharmaceutical for treating NAFLD.
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Affiliation(s)
- Yi Yang
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Jian Sheng
- The Second Affiliated Hospital of Jiaxing University, 314001, China.
| | - Yongjia Sheng
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Jin Wang
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Xiaohong Zhou
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Wenyan Li
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Yun Kong
- The Second Affiliated Hospital of Jiaxing University, 314001, China.
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Yan A, Ding H, Liu J, Bi C, Han Z, Wang Z, Nawaz S, Shen Y, Liu S. Black Lycium barbarum polysaccharide attenuates LPS-induced intestine damage via regulation gut microbiota. Front Microbiol 2023; 13:1080922. [PMID: 36741888 PMCID: PMC9893023 DOI: 10.3389/fmicb.2022.1080922] [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: 10/26/2022] [Accepted: 12/08/2022] [Indexed: 01/20/2023] Open
Abstract
Lycium barbarums are traditionally used as a homology of medicinal plants in China with a potent role in metabolism and immunomodulation. The current study was performed to explore the attenuation effect and microbiota regulation of Lycium barbarum polysaccharide (BLBP) on lipopolysaccharide (LPS)-induced intestine damage in mice. A total of 70 mice were randomly divided into five groups; negative control (GA), LPS (GB), both treated with an equal volume of normal saline, and BLBP treatment groups GC (100 mg/kg), GD (200 mg/kg), and GE (400 mg/kg) via gavage for 19 days. On Day 19, mice in groups GB, GC, GD, and GE were treated with 10 mg/kg LPS for 24 h and euthanized to collect intestine samples for pathological examination and microbiota sequencing. The results showed a non-significant difference in body weight gain among the five mouse groups; however, mice in the GC and GE groups showed decreased weight gain. An H&E examination revealed that the integrity of intestinal villi was destroyed by LPS, while BLBP supplement alleviated intestinal damage with an increase in villus height and a decrease in crypt depth. A total of over 59,000, 40,000, 50,000, 45,000, and 55,000 raw sequences were found in groups GA, GB, GC, GD, and GE, respectively. LPS challenge decreased alpha diversity indexes significantly (p < 0.05), while a non-significant difference was found between different BLBP treatment groups and the GA group. A total of 8 phyla and 13 genera were found among five mouse groups, and BLBP partly restored the bacterial abundance in mice. LPS changed 282 metabolic pathways in KEGG L2, 77 metabolic pathways in KEGG L3, and 205 metabolic pathways in MetaCyc, respectively. The BLBP-supplemented groups, especially GE, showed reverse effects on those metabolic pathways. The current study revealed that BLBP can effectively decrease intestinal damage through the regulation of intestinal microbiota, which may provide new insights for the prevention of intestinal disease using food and medicine homologous of Lycium ruthenicum.
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Affiliation(s)
- An Yan
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Houkang Ding
- College of Veterinary Medicine/Traditional Chinese Veterinary Medicine, Hebei Agriculture University, Baoding, China
| | - Junjun Liu
- College of Veterinary Medicine/Traditional Chinese Veterinary Medicine, Hebei Agriculture University, Baoding, China
| | - Chongliang Bi
- College of Agriculture and Forestry, Linyi University, Linyi, Shandong, China
| | - Zhaoqing Han
- College of Agriculture and Forestry, Linyi University, Linyi, Shandong, China
| | - Zhennan Wang
- College of Agriculture and Forestry, Linyi University, Linyi, Shandong, China
| | - Shah Nawaz
- Department of Anatomy, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Yizhao Shen
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, Hebei, China,Key Laboratory of Healthy Breeding in Dairy Cattle (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Baoding, Hebei, China,*Correspondence: Yizhao Shen,
| | - Shudong Liu
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, Hebei, China,Shudong Liu,
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Wang J, Gao H, Xie Y, Wang P, Li Y, Zhao J, Wang C, Ma X, Wang Y, Mao Q, Xia H. Lycium barbarum polysaccharide alleviates dextran sodium sulfate-induced inflammatory bowel disease by regulating M1/M2 macrophage polarization via the STAT1 and STAT6 pathways. Front Pharmacol 2023; 14:1044576. [PMID: 37144216 PMCID: PMC10151498 DOI: 10.3389/fphar.2023.1044576] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 04/05/2023] [Indexed: 05/06/2023] Open
Abstract
Disruption of colonic homeostasis caused by aberrant M1/M2 macrophage polarization contributes to the development of inflammatory bowel disease (IBD). Lycium barbarum polysaccharide (LBP) is the primary active constituent of traditional Chinese herbal Lycium barbarum L., which has been widely demonstrated to have important functions in regulating immune activity and anti-inflammatory. Thus, LBP may protect against IBD. To test this hypothesis, the DSS-induced colitis model was established in mice, then the mice were treated with LBP. The results indicated that LBP attenuated the weight loss, colon shortening, disease activity index (DAI), and histopathological scores of colon tissues in colitis mice, suggesting that LBP could protect against IBD. Besides, LBP decreased the number of M1 macrophages and the protein level of Nitric oxide synthase 2(NOS2) as a marker of M1 macrophages and enhanced the number of M2 macrophages and the protein level of Arginase 1(Arg-1) as a marker of M2 macrophages in colon tissues from mice with colitis, suggesting that LBP may protect against IBD by regulating macrophage polarization. Next, the mechanistic studies in RAW264.7 cells showed that LBP inhibited M1-like phenotype by inhibiting the phosphorylation of STAT1, and promoted M2-like phenotype by promoting the phosphorylation of STAT6. Finally, immunofluorescence double-staining results of colon tissues showed that LBP regulated STAT1 and STAT6 pathways in vivo. The results in the study demonstrated that LBP could protect against IBD by regulating macrophage polarization through the STAT1 and STAT6 pathways.
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Affiliation(s)
- Juan Wang
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
- Department of Pathology, School of Basic Medical Science, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Huiying Gao
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Yuan Xie
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Peng Wang
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Yu Li
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Junli Zhao
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Chunlin Wang
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Xin Ma
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Yuwen Wang
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Qinwen Mao
- Department of Pathology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, United States
| | - Haibin Xia
- Laboratory of Gene Therapy, Department of Biochemistry, College of Life Sciences, Shaanxi Normal University, Xi’an, China
- *Correspondence: Haibin Xia, ,
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Wang Z, Zeng Y, Cheng K, Cai Z, Zhou J. The quorum sensing system of Novosphingobium sp. ERN07 regulates aggregate formation that promotes cyanobacterial growth. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158354. [PMID: 36041622 DOI: 10.1016/j.scitotenv.2022.158354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/03/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
Microbial aggregates play key roles in cyanobacterial blooms. Being a bacterial communication mechanism, quorum sensing (QS) synchronizes gene expression in a density-dependent manner and regulates bacterial physiological behavior. However, the regulatory role of QS in the formation of cyanobacteria-associated bacterial aggregates remains poorly understood. Here, we present insight into the role of QS in regulating bacterial aggregate formation in a representative bacterial strain, Novosphingobium sp. ERN07, which was isolated from Microcystis blooms in Lake Taihu. A biosensor assay showed that ERN07 exhibits significant AHL-producing capacity. Biochemical and microscopic analysis revealed that this strain possesses the ability to form aggregated communities. Gene knockout experiments indicated that the AHL-mediated QS system positively regulates bacterial aggregation. The aggregated communities possess the ability to enhance the production of extracellular polymeric substances (EPS), alter EPS composition ratios, and affect biofilm formation. The addition of aggregated substances also has a significant growth-promoting effect on M. aeruginosa. Transcriptomic analysis revealed that the aggregated substances positively regulate photosynthetic efficiency and energy metabolism of M. aeruginosa. These findings show that QS can mediate the aggregation phenotype and associated substrate spectrum composition, contributing to a better understanding of microalgal-bacterial interactions and mechanisms of Microcystis bloom maintenance in the natural environment.
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Affiliation(s)
- Zhaoyi Wang
- Institute for Ocean Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong Province, PR China
| | - Yanhua Zeng
- Institute for Ocean Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong Province, PR China; State Key Laboratory of Marine Resource Utilization in the South China Sea, Hainan University, Haikou 570228, Hainan Province, PR China
| | - Keke Cheng
- Institute for Ocean Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong Province, PR China
| | - Zhonghua Cai
- Institute for Ocean Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong Province, PR China
| | - Jin Zhou
- Institute for Ocean Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong Province, PR China.
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Pan T, Chang Y, He M, He Z, Jiang J, Ren X, Zhang F. β-Hydroxyisovalerylshikonin regulates macrophage polarization via the AMPK/Nrf2 pathway and ameliorates sepsis in mice. PHARMACEUTICAL BIOLOGY 2022; 60:729-742. [PMID: 35352622 PMCID: PMC8973340 DOI: 10.1080/13880209.2022.2046111] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 02/14/2022] [Accepted: 02/19/2022] [Indexed: 06/14/2023]
Abstract
CONTEXT The potential anti-inflammatory bioactivities of β-hydroxyisovalerylshikonin (β-HIVS) remain largely unknown. OBJECTIVE This study investigated the anti-inflammatory effects and underlying mechanisms of β-HIVS. MATERIALS AND METHODS RAW 264.7 cells stimulated with LPS (100 ng/mL) for 24 h were treated with the non-cytotoxic doses of β-HIVS (0.5 or 1 μM, determined by MTT and Trypan blue staining), qRT-PCR and FCM assay were used to examine macrophage polarization transitions. Western blotting was used to evaluate the activation of the AMPK/Nrf2 pathway. In vivo, C57BL/6 mice were randomly divided into vehicle control, LPS (10 mg/kg), and β-HIVS (2.5 mg/kg) combined with LPS (10 mg/kg) groups, blood samples, BALF, and lung tissues of mice were subjected to ELISA, qRT-PCR, FCM, and H&E staining. RESULTS β-HIVS (1 μM) inhibited LPS-induced expression of M1 macrophage markers (TNF-α: 0.29-fold, IL-1β: 0.32-fold), promoted the expression of M2 macrophage markers (CD206: 3.14-fold, Arginase-1: 3.98-fold) in RAW 264.7 cells; mechanistic studies showed that β-HIVS increased the expression of nuclear Nrf2 (2.04-fold) and p-AMPK (3.65-fold) compared with LPS group (p < 0.05). In vivo, β-HIVS decreased the levels of pro-inflammatory cytokines (TNF-α: 1130.41 vs. 334.88 pg/mL, IL-1β: 601.89 vs. 258.21 pg/mL in serum; TNF-α: 893.07 vs. 418.21 pg/mL, IL-1β: 475.22 vs. 298.54 pg/mL in BALF), decreased the proportion of M1 macrophages (77.83 vs. 68.53%) and increased the proportion of M2 macrophages (13.55 vs. 19.56%) in BALF, and reduced lung tissue damage and septic mice survival (p < 0.05). CONCLUSIONS These results indicate that β-HIVS may be a new potential anti-inflammatory agent.
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Affiliation(s)
- Tao Pan
- Translational Medicine Center, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Department of Respiratory Medicine, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, China
- Shaanxi Key Laboratory of Brain Disorders, Institute of Basic Medical Sciences, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi, China
| | - Yabin Chang
- Translational Medicine Center, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Min He
- Translational Medicine Center, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zehui He
- Translational Medicine Center, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jun Jiang
- Department of Respiratory Medicine, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Xinling Ren
- Department of Respiratory Medicine, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, China
- Carson International Cancer Center, Shenzhen University, Shenzhen, Guangdong, China
- Shenzhen University Clinical Medical Academy, Shenzhen, Guangdong, China
| | - Fang Zhang
- Department of Respiratory Medicine, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, China
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Dai T, Zhang X, Zhou X, Hu X, Huang X, Xing F, Tian H, Li Y. Long non-coding RNA VAL facilitates PKM2 enzymatic activity to promote glycolysis and malignancy of gastric cancer. Clin Transl Med 2022; 12:e1088. [PMID: 36229913 PMCID: PMC9561166 DOI: 10.1002/ctm2.1088] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/25/2022] [Accepted: 09/29/2022] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) is one of the most common types of cancer worldwide, which leads to more than 10% of cancer-related deaths. Metabolism reprogramming presents as a pivotal event in cancer initiation and progression through enhancing aerobic glycolysis and anabolic metabolism. However, the underlying regulatory mechanisms in GC remain unknown. METHODS VAL was identified by bioinformatics analyses in GC. Cell-based assays and mouse model illustrate the role of VAL in GC. RNA pull-down, immunoprecipitation assay and Western blot elucidate the interaction between VAL and PKM2. Pyruvate kinase activity, ECAR and OCR were measured to validate aerobic glycolysis of GC cells. RESULTS Long non-coding RNA (lncRNA) VAL is significantly upregulated in GCs and indicates poor prognosis. Functional assays showed that VAL promotes GC malignant progression. Mechanistically, VAL strengthens the enzymatic activity of PKM2 and aerobic glycolysis of GC cells through directly binding with PKM2 to abrogate the PKM2-Parkin interaction, and to suppress Parkin-induced polyubiquitination of PKM2. In addition, glucose starvation induces VAL expression to enhance this process. CONCLUSIONS Our study provides an insight into an lncRNA-dependent regulation on the enzymatic activity of PKM2, and suggests a potential of targeting VAL or PKM2 as promising biomarkers in GC diagnosis and treatment.
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Affiliation(s)
- Ting Dai
- Institute of Tissue Transplantation and Immunology, Department of ImmunobiologyJinan UniversityGuangzhouGuangdongChina,GMU‐GIBH Joint School of Life SciencesGuangzhou Medical UniversityGuangzhouGuangdongChina
| | - Xin Zhang
- Clinical Experimental Center, Jiangmen Key Laboratory of Clinical Biobanks and Translational Research, Jiangmen Central HospitalAffiliated Jiangmen Hospital of Sun Yat‐sen UniversityJiangmenChina
| | - Xiang Zhou
- Department of Microsurgery, Trauma and Hand SurgeryThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouGuangdongChina
| | - Xiaoxia Hu
- Institute of Tissue Transplantation and Immunology, Department of ImmunobiologyJinan UniversityGuangzhouGuangdongChina
| | - Xiaodi Huang
- Institute of Tissue Transplantation and Immunology, Department of ImmunobiologyJinan UniversityGuangzhouGuangdongChina
| | - Feiyue Xing
- Institute of Tissue Transplantation and Immunology, Department of ImmunobiologyJinan UniversityGuangzhouGuangdongChina
| | - Han Tian
- Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouGuangdongChina
| | - Yun Li
- Institute of Tissue Transplantation and Immunology, Department of ImmunobiologyJinan UniversityGuangzhouGuangdongChina
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The Effects of Lycium chinense, Cuscuta chinensis, Senna tora, Ophiopogon japonicus, and Dendrobium nobile Decoction on a Dry Eye Mouse Model. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58081134. [PMID: 36013601 PMCID: PMC9414943 DOI: 10.3390/medicina58081134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 08/06/2022] [Accepted: 08/17/2022] [Indexed: 11/22/2022]
Abstract
Background and objective: Dry eye disease (DED) is a relatively common disorder associated with abnormal tear film and the ocular surface that causes ocular irritation, dryness, visual impairment, and damage to the cornea. DED is not a life-threatening disease but causes discomfort and multifactorial disorders in vision that affect daily life. It has been reported that all traditional medicinal plants exhibit anti-inflammatory effects on several diseases. We hypothesized that the decoction ameliorated ocular irritation and decreased cytokine expression in the cornea. This study aimed to investigate the molecular mechanisms of DED and discover a therapeutic strategy to reduce corneal inflammation. Material and Methods: We used a DED mouse model with extraorbital lacrimal gland (ELG) excision and treated the mice with a decoction of five traditional medicines: Lycium chinense, Cuscuta chinensis, Senna tora, Ophiopogon japonicus, and Dendrobium nobile for 3 months. The tear osmolarity and the ocular surface staining were evaluated as indicators of DED. Immunohistochemistry was used to detect the level of inflammation on the cornea. Results: After treatment with the decoction for three months, epithelial erosions and desquamation were reduced, the intact of corneal endothelium was maintained, and tear osmolarity was restored in the eyes. The IL-1β-associated inflammatory response was reduced in the cornea in the DED model. Conclusions: These data suggested that a mixture of traditional medicines might be a novel therapy to treat DED.
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He Q, Yin J, Zou B, Guo H. WIN55212-2 alleviates acute lung injury by inhibiting macrophage glycolysis through the miR-29b-3p/FOXO3/PFKFB3 axis. Mol Immunol 2022; 149:119-128. [PMID: 35810663 DOI: 10.1016/j.molimm.2022.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/25/2022] [Accepted: 06/10/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Acute lung injury (ALI) is a severe organ dysfunction caused by sepsis. WIN55212-2 (WIN) is a cannabinoid receptor agonist. Activation of cannabinoid type 2 receptor can alleviate septic lung injury. Therefore, the effects of WIN on sepsis-related ALI were evaluated. METHODS MiR-29b-3p, FOXO3 and PFKFB3 levels, as well as M1 and M2 macrophage markers were assessed by RT-qPCR in MH-S cells after lipopolysaccharide (LPS) and WIN treatment. ChIP and dual luciferase reporter assays determined molecules interactions. Glycolysis-related proteins were evaluated by Western blotting assay. Lactic acid and ATP were also tested. Furthermore, the effect of WIN was tested in sepsis mice model. HE staining evaluated the histopathological changes in mouse lung tissues. The number of inflammatory cells and macrophages, protein concentration and lactic acid content were detected in mouse bronchoalveolar lavage fluid. RESULTS We found that WIN suppressed M1 polarization and glycolysis in alveolar macrophages induced by LPS. Moreover, WIN inhibited FOXO3 by up-regulating miR-29b-3p. Furthermore, we verified that FOXO3 induced macrophage M1 polarization and glycolysis through activating PFKFB3. In vivo, WIN alleviated ALI in mice with sepsis. CONCLUSION Our results reveal that WIN inhibits macrophage glycolysis through the miR-29b-3p/ FOXO3/PFKFB3 axis, suggesting new therapeutic targets to alleviate sepsis-related ALI.
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Affiliation(s)
- Quan He
- Department of Emergency/EICU, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan Province, PR China
| | - Jun Yin
- Department of Emergency/EICU, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan Province, PR China
| | - Baisong Zou
- Department of Emergency/EICU, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan Province, PR China
| | - Hui Guo
- Center of Stomatology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan Province, PR China.
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Ding N, Xu X, Wang Y, Li H, Cao Y, Zheng L. Contribution of prognostic ferroptosis-related subtypes classification and hub genes of sepsis. Transpl Immunol 2022; 74:101660. [PMID: 35787932 DOI: 10.1016/j.trim.2022.101660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND Sepsis in patients is a great threat to human health due to its high incidence rate, its rapid and unpredictable progression, as well as it is difficult to treat, and it has poor prognosis. Ferroptosis is a newly discovered type of cell death characterized by the iron-dependent peroxide aggregation. Furthermore, ferroptosis is different from other forms of cell death, namely apoptosis, necrosis, pyroptosis and autophagy. Our study investigated the role of ferroptosis-related genes in sepsis. METHODS The GSE65682 dataset from the Gene Expression Omnibus (GEO) database was used to screen ferroptosis-related genes associated with sepsis, and the GSE134347 dataset for the external validation of selected hub genes. The univariate Cox regression analysis, Kaplan-Meier (K-M) survival analysis and weighted gene co-expression network analysis (WGCNA) were used to identify hub genes. Evaluation of the immune cell infiltration in sepsis was used to explain the immune heterogeneity among the cell subtypes. Gene set variation analysis (GSVA) and transcriptional regulatory analysis of selected hub genes further elucidated the probable mechanism of ferroptosis-related genes associated with prognosis in sepsis. Finally, we constructed a competing endogenous RNA (ceRNA) network model. RESULTS A total of 479 RNA-seq data points were used for analysis, including 365 samples from patients who survived sepsis and 114 samples from patients who succumbed to sepsis from the available GSE65682 dataset. Consequently, the univariate Cox regression analysis and consensus clustering analysis divide all 479 sepsis samples into two clusters of "survivals" vs. "non-survivals". Following complex analysis were identified as the most important ferroptosis-related genes. Indeed, the WGCNA and K-M analyses associated the expression patterns of NEDD4L and SIAH2 hub genes as the best prognosis for the survival of sepsis (p < 0.05). The expression trend was also consistent with the survival trend of the NEDD4L and SIAH2 hub genes by the external validation of GSE134347 (p < 0.05). Immune cell infiltration analysis indicated that the types and numbers of different immune cells vary among different subtypes and NEDD4L and SIAH2 hub genes. For example, NEDD4L and SIAH2 gene expression had a positive correlation with M0 macrophages and a negative correlation with neutrophils (p > 0.05). Finally, analysis of two hub genes and transcription factors (TFs) showed that 71 TFs were predicted to be related to NEDD4L while 64 TFs to SIAH2 by the Cistrome DB online database. CONCLUSION We suggest that NEDD4L and SIAH2 hub genes are involved in the ferroptosis-associated sepsis. The pattern of NEDD4L and SIAH2 expression in patients undergoing sepsis may have prognostic potential for the severity of sepsis and eventually for patients' survival.
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Affiliation(s)
- Ni Ding
- Department of Anesthesiology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518071, Guangdong, China
| | - Xiangzhao Xu
- Department of Anesthesiology, The Fifth People's Hospital of Ningxia, Shizuishan 753000, Ningxia, China
| | - Yuting Wang
- Department of Anesthesiology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518071, Guangdong, China
| | - Huiting Li
- Department of Anesthesiology, Sun Yat-Sen University Cancer Center, Guangzhou 753000, Guangdong, China
| | - Yuling Cao
- Department of Anesthesiology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518071, Guangdong, China
| | - Lei Zheng
- Department of Anesthesiology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518071, Guangdong, China.
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21
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Zheng Y, Qi B, Gao W, Qi Z, Liu Y, Wang Y, Feng J, Cheng X, Luo Z, Li T. Macrophages-Related Genes Biomarkers in the Deterioration of Atherosclerosis. Front Cardiovasc Med 2022; 9:890321. [PMID: 35845072 PMCID: PMC9282674 DOI: 10.3389/fcvm.2022.890321] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/26/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundThe macrophages are involved in all stages of cardiovascular diseases, demonstrating the correlation between inflammation, atherosclerosis, and myocardial infarction (MI). Here, we aim to investigate macrophages-related genes in the deterioration of atherosclerosis.MethodsGSE41571 was downloaded and the abundance of immune cells was estimated by utilizing the xCell. By utilizing the limma test and correlation analysis, differentially expressed macrophages-related genes (DEMRGs) were documented. The functional pathways and the protein–protein interaction (PPI) network were analyzed and the hub DEMRGs were obtained. The hub DEMRGs and their interactions were analyzed using NetworkAnalyst 3.0 and for validation, the expressions of hub DEMRGs were analyzed using the GSE135055 and GSE116250 datasets as well as atherosclerosis and MI mice model.ResultsA total of 509 differentially expressed genes (DEGs) were correlated with the abundance of macrophages and were identified as DEMRGs (Pearson correlation coefficients (PCC) > 0.6), which were mainly enriched in extracellular structure organization, lysosomal membrane, MHC protein complex binding, and so on. After screening out, 28 hub DEMRGs were obtained with degrees ≥20, including GNAI1 (degree = 113), MRPS2 (degree = 56), HCK (degree = 45), SOCS3 (degree = 40), NET1 (degree = 28), and so on. After validating using Gene Expression Omnibus (GEO) datasets and the atherosclerosis and MI mice model, eight proteins were validated using ApoE-/- and C57 mice. The expression levels of proteins, including SYNJ2, NET1, FZD7, LCP2, HCK, GNB2, and PPP4C were positively correlated to left ventricular ejection fraction (LVEF), while that of EIF4EBP1 was negatively correlated to LVEF.ConclusionThe screened hub DEMRGs, SYNJ2, NET1, FZD7, LCP2, HCK, GNB2, EIF4EBP1, and PPP4C, may be therapeutic targets for treatment and prediction in the patients with plaque progression and MI recurrent events. The kit of the eight hub DEMRGs may test plaque progression and MI recurrent events and help in the diagnosis and treatment of MI-induced heart failure (HF), thus decreasing mortality and morbidity.
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Affiliation(s)
- Yue Zheng
- School of Medicine, Nankai University, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
| | - Bingcai Qi
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Wenqing Gao
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Zhenchang Qi
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Yanwu Liu
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Yuchao Wang
- School of Medicine, Nankai University, Tianjin, China
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Jianyu Feng
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Xian Cheng
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Zhiqiang Luo
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
- Zhiqiang Luo
| | - Tong Li
- School of Medicine, Nankai University, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
- *Correspondence: Tong Li
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22
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Yu Q, Han F, Yuan Z, Zhu Z, Liu C, Tu Z, Guo Q, Zhao R, Zhang W, Wang H, Mao H, Li B, Zhu C. Fucoidan-loaded nanofibrous scaffolds promote annulus fibrosus repair by ameliorating the inflammatory and oxidative microenvironments in degenerative intervertebral discs. Acta Biomater 2022; 148:73-89. [PMID: 35671874 DOI: 10.1016/j.actbio.2022.05.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 05/23/2022] [Accepted: 05/31/2022] [Indexed: 11/01/2022]
Abstract
Tissue engineering holds potential in the treatment of intervertebral disc degeneration (IDD). However, implantation of tissue engineered constructs may cause foreign body reaction and aggravate the inflammatory and oxidative microenvironment of the degenerative intervertebral disc (IVD). In order to ameliorate the adverse microenvironment of IDD, in this study, we prepared a biocompatible poly (ether carbonate urethane) urea (PECUU) nanofibrous scaffold loaded with fucoidan, a natural marine bioactive polysaccharide which has great anti-inflammatory and antioxidative functions. Compared with pure PECUU scaffold, the fucoidan-loaded PECUU nanofibrous scaffold (F-PECUU) decreased the gene and protein expression related to inflammation and the oxidative stress in the lipopolysaccharide (LPS) induced annulus fibrosus cells (AFCs) significantly (p<0.05). Especially, gene expression of Ill 6 and Ptgs2 was decreased by more than 50% in F-PECUU with 3.0 wt% fucoidan (HF-PECUU). Moreover, the gene and protein expression related to the degradation of extracellular matrix (ECM) were reduced in a fucoidan concentration-dependent manner significantly, with increased almost 3 times gene expression of Col1a2 and Acan in HF-PECUU. Further, in a 'box' defect model, HF-PECUU decreased the expression of COX-2 and deposited more ECM between scaffold layers when compared with pure PECUU. The disc height and nucleus pulposus hydration of repaired IVD reached up to 75% and 85% of those in the sham group. In addition, F-PECUU helped to maintain an integrate tissue structure with a similar compression modulus to that in sham group. Taken together, the F-PECUU nanofibrous scaffolds showed promising potential to promote AF repair in IDD treatment by ameliorating the harsh degenerative microenvironment. STATEMENT OF SIGNIFICANCE: Annulus fibrosus (AF) tissue engineering holds potential in the treatment of intervertebral disc degeneration (IDD), but is restricted by the inflammatory and oxidative microenvironment of degenerative disc. This study developed a biocompatible polyurethane scaffold (F-PECUU) loaded with fucoidan, a marine bioactive polysaccharide, for ameliorating IDD microenvironment and promoting disc regeneration. F-PECUU alleviated the inflammation and oxidative stress caused by lipopolysaccharide and prevented extracellular matrix (ECM) degradation in AF cells. In vivo, it promoted ECM deposition to maintain the height, water content and mechanical property of disc. This work has shown the potential of marine polysaccharides-containing functional scaffolds in IDD treatment by ameliorating the harsh microenvironment accompanied with disc degeneration.
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Affiliation(s)
- Qifan Yu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Feng Han
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Zhangqin Yuan
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Zhuang Zhu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Changjiang Liu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Zhengdong Tu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Qianping Guo
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Runze Zhao
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Weidong Zhang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Huan Wang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Haijiao Mao
- Department of Orthopaedic Surgery, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang 315000, China.
| | - Bin Li
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China; Department of Orthopaedic Surgery, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang 315000, China; Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu 215000, China.
| | - Caihong Zhu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China.
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23
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Aqueous Extract and Polysaccharide of Aconiti Lateralis Radix Induce Apoptosis and G0/G1 Phase Cell Cycle Arrest by PI3K/AKT/mTOR Signaling Pathway in Mesangial Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:3664696. [PMID: 35497917 PMCID: PMC9054446 DOI: 10.1155/2022/3664696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/03/2022] [Accepted: 03/16/2022] [Indexed: 12/03/2022]
Abstract
Mesangial proliferative glomerulonephritis (MesPGN) is a common renal disease that lacks effective drug intervention. Aconiti Lateralis Radix (Fuzi), a natural Chinese medical herb, is found with significant therapeutic effects on various diseases in the clinic. However, its effects on MesPGN have not been reported. This study is aimed to discuss the therapeutic effects of the aqueous extract of Aconiti Lateralis Radix (ALR) and the polysaccharides of Aconiti Lateralis Radix (PALR) on MesPGN as well as the underlying mechanism. In this study, we, firstly, studied the anti-MesPGN mechanism of ALR and PALR. ALR and PALR inhibit the proliferation of the mesangial cells through the PI3K/AKT/mTOR pathway, induce the G0/G1 phase of block and apoptosis, inhibit the activity of Cyclin E and CDK2, increase the expression of Bax, cleaved caspase-8/caspase-8, and cleaved caspase-3/caspase-3 proteins, and effectively inhibit the growth of the mesangial cells. Overall, our data suggest that ALR and PALR may be potential candidates for MesPGN and that PALR is more effective than ALR.
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Shao Y, Jiang Z, He D, Shen J. NEDD4 attenuates phosgene-induced acute lung injury through the inhibition of Notch1 activation. J Cell Mol Med 2022; 26:2831-2840. [PMID: 35355403 PMCID: PMC9097839 DOI: 10.1111/jcmm.17296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 02/21/2022] [Accepted: 03/04/2022] [Indexed: 11/28/2022] Open
Abstract
Phosgene gas leakage can cause life-threatening acute lung injury (ALI), which is characterized by inflammation, increased vascular permeability, pulmonary oedema and oxidative stress. Although the downregulation of neuronal precursor cell-expressed developmentally downregulated 4 (NEDD4) is known to be associated with inflammation and oxidative damage, its functions in phosgene-induced ALI remain unclear. In this study, rats with phosgene-induced ALI were intravenously injected with NEDD4-overexpressing lentiviruses to determine the functions of NEDD4 in this inflammatory condition. NEDD4 expression was decreased in the lung parenchyma of phosgene-exposed control rats, whereas its expression level was high in the NEDD4-overexpressing rats. Phosgene exposure increased the wet-to-dry lung weight ratio, but NEDD4 abrogated this effect. NEDD4 overexpression attenuated phosgene-induced lung inflammation, lowering the high lung injury score (based on total protein, inflammatory cells and inflammatory factors in bronchoalveolar lavage fluid) and also reduced phosgene-induced oxidative stress and cell apoptosis. Finally, NEDD4 was found to interact with Notch1, enhancing its ubiquitination and thereby its degradation, thus attenuating the inflammatory responses to ALI. Therefore, we demonstrated that NEDD4 plays a protective role in alleviating phosgene-induced ALI, suggesting that enhancing the effect of NEDD4 may be a new approach for treating phosgene-induced ALI.
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Affiliation(s)
- Yiru Shao
- Center of Emergency & Intensive Care UnitJinshan HospitalFudan UniversityShanghaiChina
- Key Laboratory of Chemical Injury, Emergency and Critical Medicine of Shanghai Municipal Health CommissionShanghaiChina
- Medical Research Center for Chemical Injury, Emergency and Critical Care of Chemical InjuryJinshan HospitalFudan UniversityShanghaiChina
| | - Zhifeng Jiang
- Center of Emergency & Intensive Care UnitJinshan HospitalFudan UniversityShanghaiChina
- Key Laboratory of Chemical Injury, Emergency and Critical Medicine of Shanghai Municipal Health CommissionShanghaiChina
- Medical Research Center for Chemical Injury, Emergency and Critical Care of Chemical InjuryJinshan HospitalFudan UniversityShanghaiChina
| | - Daikun He
- Center of Emergency & Intensive Care UnitJinshan HospitalFudan UniversityShanghaiChina
- Key Laboratory of Chemical Injury, Emergency and Critical Medicine of Shanghai Municipal Health CommissionShanghaiChina
- Medical Research Center for Chemical Injury, Emergency and Critical Care of Chemical InjuryJinshan HospitalFudan UniversityShanghaiChina
| | - Jie Shen
- Center of Emergency & Intensive Care UnitJinshan HospitalFudan UniversityShanghaiChina
- Key Laboratory of Chemical Injury, Emergency and Critical Medicine of Shanghai Municipal Health CommissionShanghaiChina
- Medical Research Center for Chemical Injury, Emergency and Critical Care of Chemical InjuryJinshan HospitalFudan UniversityShanghaiChina
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25
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Yu Q, Guo M, Zeng W, Zeng M, Zhang X, Zhang Y, Zhang W, Jiang X, Yu B. Interactions between NLRP3 inflammasome and glycolysis in macrophages: New insights into chronic inflammation pathogenesis. Immun Inflamm Dis 2022; 10:e581. [PMID: 34904398 PMCID: PMC8926505 DOI: 10.1002/iid3.581] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 12/11/2022] Open
Abstract
NLRP3 inflammasome activation in macrophages fuels sterile inflammation, which has been tied with metabolic reprogramming characterized by high glycolysis and low oxidative phosphorylation. The key enzymes in glycolysis and glycolysis‐related products can regulate and activate NLRP3 inflammasome. In turn, NLRP3 inflammasome is considered to affect glycolysis, as well. However, the exact mechanism remains ambiguous. On the basis of these findings, the focus of this review is mainly on the developments in our understanding of interaction between NLRP3 inflammasome activation and glycolysis in macrophages, and small molecule compounds that influence the activation of NLRP3 inflammasomes by regulating glycolysis in macrophages. The application of this interaction in the treatment of diseases is also discussed. This paper may yield valuable clues for development of novel therapeutic agent for NLRP3 inflammasome‐related diseases.
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Affiliation(s)
- Qun Yu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Maojuan Guo
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wenyun Zeng
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Miao Zeng
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaolu Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yue Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wenlan Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xijuan Jiang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bin Yu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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26
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Evolution of the protein corona affects macrophage polarization. Int J Biol Macromol 2021; 191:192-200. [PMID: 34547310 DOI: 10.1016/j.ijbiomac.2021.09.081] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 08/19/2021] [Accepted: 09/13/2021] [Indexed: 01/14/2023]
Abstract
When nanoparticles (NPs) come into contact with bioenvironments, a protein corona forms on the NP surface. Previous reports showed that the constituents of the corona change with time. However, how different protein corona compositions influence cells, especially immune cells, has received less attention. Macrophages are important immune cells that can be polarized into a pro-inflammatory (M1) or anti-inflammatory (M2) phenotype. In this study, AuNPs were incubated with human plasma for different periods to obtain time-related AuNP-coronas, and the influences of time-related AuNP-coronas on macrophage polarization were investigated. The macrophage morphology, biomarkers, cytokine secretion studies show that the pristine AuNPs and 4 h-AuNP-corona induced macrophage cells into M2 phenotype, while the co-incubation of 12 h-AuNP-corona and macrophage cells result in M1 phenotype. Further proteomic analysis showed that the compositions of protein corona were changing constantly after AuNPs contacted with plasma. When the incubation time increased to 12 h, the immune proteins in protein corona were increased significantly, which play a key role in modulation of the different macrophages polarization. Our findings demonstrated that plasma incubation time is an important parameter that needs to be taken into account in the study of nano-immune interactions and safe use of NPs in biological systems. Moreover, our finding can be a new efficient strategy for activating inflammatory or anti-inflammatory in medical treatment.
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Liu Z, Le Y, Chen H, Zhu J, Lu D. Role of PKM2-Mediated Immunometabolic Reprogramming on Development of Cytokine Storm. Front Immunol 2021; 12:748573. [PMID: 34759927 PMCID: PMC8572858 DOI: 10.3389/fimmu.2021.748573] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/11/2021] [Indexed: 12/26/2022] Open
Abstract
The cytokine storm is a marker of severity of various diseases and increased mortality. The altered metabolic profile and energy generation of immune cells affects their activation, exacerbating the cytokine storm. Currently, the emerging field of immunometabolism has highlighted the importance of specific metabolic pathways in immune regulation. The glycolytic enzyme pyruvate kinase M2 (PKM2) is a key regulator of immunometabolism and bridges metabolic and inflammatory dysfunction. This enzyme changes its conformation thus walks in different fields including metabolism and inflammation and associates with various transcription factors. This review summarizes the vital role of PKM2 in mediating immunometabolic reprogramming and its role in inducing cytokine storm, with a focus on providing references for further understanding of its pathological functions and for proposing new targets for the treatment of related diseases.
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Affiliation(s)
- Zhijun Liu
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yifei Le
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Hang Chen
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ji Zhu
- The Third Affiliated Hospital of Zhejiang Chinese Medical University (Zhongshan Hospital of Zhejiang Province), Hangzhou, China
| | - Dezhao Lu
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
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Zhang X, Yang Y, Jing L, Zhai W, Zhang H, Ma Q, Li C, Yan F, Cheng D, Zhang J, Ning Z, Shi H, Wang C, Zhao M, Dai J, Li Z, Ming J, Yu M, Wang H, Cheng H, Xiong H, Dong G. Pyruvate Kinase M2 Contributes to TLR-Mediated Inflammation and Autoimmunity by Promoting Pyk2 Activation. Front Immunol 2021; 12:680068. [PMID: 34025679 PMCID: PMC8138060 DOI: 10.3389/fimmu.2021.680068] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 04/22/2021] [Indexed: 11/13/2022] Open
Abstract
Toll-like receptors (TLRs) play critical roles in regulating the abnormal activation of the immune cells resulting in the pathogenesis of inflammation and autoimmune diseases. Pyruvate kinase M2 (PKM2), which governs the last step of glycolysis, is involved in multiple cellular processes and pathological conditions. However, little is known about the involvement of PKM2 in regulating TLR-mediated inflammation and autoimmunity. Herein, we investigated the role of PKM2 in the activation of the TLR pathways and the pathogenesis of inflammation and autoimmune diseases. The activation of TLR4, TLR7 and TLR9 pathways was found to induce the up-regulation of PKM2 expression in macrophages, dendritic cells (DCs) and B cells. The over-expression of PKM2 promotes the activation of TLR4, TLR7 and TLR9 pathways while interference with the PKM2 expression or the addition of the PKM2 inhibitor (PKM-IN) markedly inhibited the activation of TLR4, TLR7 and TLR9 pathways. Mechanistically, PKM2 augmented the activation of TLR4, TLR7 and TLR9 pathways by promoting the activation of the proline-rich tyrosine kinase 2 (Pyk2). Intriguingly, the PKM2 inhibitor PKM2-IN significantly protected the mice from the endotoxic shock mediated by the TLR4-agonist LPS. Additionally, it alleviated the progression in the TLR7-agonist imiquimod-mediated lupus mice and spontaneous lupus MRL/lpr mice. Moreover, PKM2 expression was highly elevated in the monocytes, DCs and B cells from systemic lupus erythematous (SLE) patients compared with those from the healthy donors. Besides, the PKM2 expression level was positively correlated with the degree of activation of these immune cells. In summary, PKM2 contributed to TLR-mediated inflammation and autoimmunity and can be a valuable target to control inflammation and autoimmunity.
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Affiliation(s)
- Xin Zhang
- School of Medical Laboratory, Weifang Medical University, Weifang, China
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Yonghong Yang
- Medical Research Center, Affiliated Hospital of Jining Medical University, Jining, China
| | - Lina Jing
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Weiwei Zhai
- Department of Clinical Laboratory, Jining No. 1 People’s Hospital, Jining, China
| | - Hui Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Qun Ma
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Chunxia Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Fenglian Yan
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Dalei Cheng
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Junfeng Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Zhaochen Ning
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Hui Shi
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Changying Wang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Mingsheng Zhao
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Jun Dai
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Zhihua Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Jiankuo Ming
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Meimei Yu
- School of Medical Laboratory, Weifang Medical University, Weifang, China
| | - Haiyan Wang
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Hongyan Cheng
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Huabao Xiong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
| | - Guanjun Dong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, China
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