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Yang S, Liu G, Xia X, Gan D, Xiang S, Xiang M. α-Mangostin suppresses ethanol-induced gastric ulceration by regulating the Nrf2/HO-1 and NF-κB/NLRP3/caspase-1 signaling pathways and gut microbiota. Heliyon 2024; 10:e24339. [PMID: 38304797 PMCID: PMC10831614 DOI: 10.1016/j.heliyon.2024.e24339] [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: 08/04/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 02/03/2024] Open
Abstract
α-Mangostin is a natural xanthone derivative isolated from Camellia atrophy (CA), commonly known as Lichuan black tea (LBT). The present study investigated the ameliorating effect and mechanism of α-mangostin on alcoholic gastric ulcers (GU) in rats. In vivo, α-mangostin relieved pathological symptoms. Moreover, α-mangostin regulated the activation of the nuclear factor (erythroid-derived 2)-like 2 (Nrf2)/heme oxygenase 1 (HO-1) and nuclear factor κB (NF-κB)/NLR family pyrin domain containing 3 (NLRP3)/caspase-1 pathways. Reactive oxygen species (ROS), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β) were significantly decreased and IL-10 were increased, the microtubule-associated protein light chain 3 (LC3)-II/LC3-I ratio was increased, p62 protein expression was decreased, and inducible nitric oxide synthase (iNOS) and cyclooxygenase 2 (COX-2) protein expression was down-regulated. The relevant mechanisms were validated using GSE-1 and RAW264.7 cells in an in vitro model. Furthermore, α-mangostin increased Ligilactobacillus and Muribaculum abundance as well as propionic acid and butyric acid contents. Therefore, α-mangostin possesses antioxidant and anti-inflammatory properties, and remodels intestinal flora dysbiosis through mechanisms that may involve regulation of the Nrf2/HO-1 pathway and NF-κB/NLRP3/caspase-1 pathway. It also increases propionic acid and butyric acid contents. This study provides novel evidence regarding the use of α-mangostin for treating GU.
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Affiliation(s)
- Suqin Yang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Gang Liu
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, China, 430060, Hubei, China
| | - Xiankun Xia
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Dali Gan
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Shijian Xiang
- Department of Laboratory Medicine, Renmin Hosipital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Meixian Xiang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
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Wang S, Jiang D, Huang F, Qian Y, Qi M, Li H, Wang X, Wang Z, Wang K, Wang Y, Du P, Zhan B, Zhou R, Chu L, Yang X. Therapeutic effect of Echinococcus granulosus cyst fluid on bacterial sepsis in mice. Parasit Vectors 2023; 16:450. [PMID: 38066526 PMCID: PMC10709918 DOI: 10.1186/s13071-023-06021-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/18/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND The primary pathophysiological process of sepsis is to stimulate a massive release of inflammatory mediators to trigger systemic inflammatory response syndrome (SIRS), the major cause of multi-organ dysfunction and death. Like other helminths, Echinococcus granulosus induces host immunomodulation. We sought to determine whether E. granulosus cyst fluid (EgCF) displays a therapeutic effect on sepsis-induced inflammation and tissue damage in a mouse model. METHODS The anti-inflammatory effects of EgCF were determined by in vitro culture with bone marrow-derived macrophages (BMDMs) and in vivo treatment of BALB/C mice with cecal ligation and puncture (CLP)-induced sepsis. The macrophage phenotypes were determined by flow cytometry, and the levels of cytokines in cell supernatants or in sera of mice were measured (ELISA). The therapeutic effect of EgCF on sepsis was evaluated by observing the survival rates of mice for 72 h after CLP, and the pathological injury to the liver, kidney, and lung was measured under a microscope. The expression of TLR-2/MyD88 in tissues was measured by western blot to determine whether TLR-2/MyD88 is involved in the sepsis-induced inflammatory signaling pathway. RESULTS In vitro culture with BMDMs showed that EgCF promoted macrophage polarization to M2 type and inhibited lipopolysaccharide (LPS)-induced M1 macrophages. EgCF treatment provided significant therapeutic effects on CLP-induced sepsis in mice, with increased survival rates and alleviation of tissue injury. The EgCF conferred therapeutic efficacy was associated with upregulated anti-inflammatory cytokines (IL-10 and TGF-β) and reduced pro-inflammatory cytokines (TNF-α and INF-γ). Treatment with EgCF induced Arg-1-expressed M2, and inhibited iNOS-expressed M1 macrophages. The expression of TLR-2 and MyD88 in EgCF-treated mice was reduced. CONCLUSIONS The results demonstrated that EgCF confers a therapeutic effect on sepsis by inhibiting the production of pro-inflammatory cytokines and inducing regulatory cytokines. The anti-inflammatory effect of EgCF is carried out possibly through inducing macrophage polarization from pro-inflammatory M1 to regulatory M2 phenotype to reduce excessive inflammation of sepsis and subsequent multi-organ damage. The role of EgCF in regulating macrophage polarization may be achieved by inhibiting the TLR2/MyD88 signaling pathway.
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Affiliation(s)
- Shuying Wang
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
- Department of Pediatrics, Anqing First People's Hospital of Anhui Medical University, Anqing, 246000, China
| | - Donghui Jiang
- Department of Critical Care Medicine, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
| | - Feifei Huang
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Yayun Qian
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Meitao Qi
- Department of Pediatrics, Anqing First People's Hospital of Anhui Medical University, Anqing, 246000, China
| | - Huihui Li
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Xiaoli Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Zhi Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Kaigui Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China
| | - Yin Wang
- Department of Critical Care Medicine, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
| | - Pengfei Du
- Department of Critical Care Medicine, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
| | - Bin Zhan
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Rui Zhou
- First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China
| | - Liang Chu
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China.
- Second Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, China.
| | - Xiaodi Yang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, 233000, China.
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Fu H, Liang X, Tan W, Hu X. Unraveling the protective mechanisms of Chuanfangyihao against acute lung injury: Insights from experimental validation. Exp Ther Med 2023; 26:535. [PMID: 37869635 PMCID: PMC10587870 DOI: 10.3892/etm.2023.12234] [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: 06/25/2023] [Accepted: 08/21/2023] [Indexed: 10/24/2023] Open
Abstract
Chuanfangyihao (CFYH) is an effective treatment for acute lung injury (ALI) in clinical practice; however, its underlying mechanism of action remains unclear. Therefore, the aim of the present study was to elucidate the pharmacological mechanism of action of CFYH in ALI through experimental validation. First, a rat model of ALI was established using lipopolysaccharide (LPS). Next, the pathological changes in the lungs of the rats and the pathological damage were scored. The wet/dry weight ratios were measured, and ROS content was detected using flow cytometry. ELISA was used to examine IL-6, TNF-α, IL-1β, IL-18, and LDH levels. Immunohistochemistry was used to detect Beclin-1 and NLRP3 expression. Western blotting was performed to analyze the expression of HMGB1, RAGE, TLR4, NF-κB p65, AMPK, p-AMPK, mTOR, p-mTOR, Beclin-1, LC3-II/I, p62, Bcl-2, Bax, Caspase-3, Caspase-1, and GSDMD-NT. The mRNA levels of HMGB1, RAGE, AMPK, mTOR, and HIF-1α were determined using reverse transcription quantitative PCR. CFYH alleviated pulmonary edema and decreased the expression of IL-6, TNF-α, TLR4, NF-κB p65, HMGB1/RAGE, ROS, and HIF-1α. In addition, pretreatment with CFYH reversed ALI-induced programmed cell death. In conclusion, CFYH alleviates LPS-induced ALI, and these findings provide a preliminary clarification of the predominant mechanism of action of CFYH in ALI.
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Affiliation(s)
- Hongfang Fu
- Infectious Disease Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, P.R. China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, P.R. China
| | - Xiao Liang
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, P.R. China
| | - Wanying Tan
- Infectious Disease Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, P.R. China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, P.R. China
| | - Xiaoyu Hu
- Infectious Disease Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, P.R. China
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Wu S, Liao J, Hu G, Yan L, Su X, Ye J, Zhang C, Tian T, Wang H, Wang Y. Corilagin alleviates LPS-induced sepsis through inhibiting pyroptosis via targeting TIR domain of MyD88 and binding CARD of ASC in macrophages. Biochem Pharmacol 2023; 217:115806. [PMID: 37714273 DOI: 10.1016/j.bcp.2023.115806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/10/2023] [Accepted: 09/12/2023] [Indexed: 09/17/2023]
Abstract
Sepsis is a dysregulated systemic inflammatory response caused by infection that leads to multiple organ injury and high mortality without effective treatment. Corilagin, a natural polyphenol extracted from traditional Chinese herbs, exhibits strong anti-inflammatory properties. However, the role for Corilagin in lipopolysaccharide (LPS)-induced sepsis and the molecular mechanisms underlying this process have not been completely explored. Here we determine the effect of Corilagin on LPS-treated mice and use a screening approach integrating surface plasmon resonance with liquid chromatography-tandem mass spectrometry (SPR-LC-MS/MS) to further explore the therapeutic target of Corilagin. We discovered that Corilagin significantly prolonged the survival time of septic mice, attenuated the multi-organ injury and the expression of pyroptosis-related proteins in tissues of LPS-treated mice. In vitro studies revealed that Corilagin inhibited pyroptosis and NLRP3 inflammasome activation in LPS-treated macrophages followed with ATP stimulation, as reflected by decreased levels of GSDMD-NT and activated caspase-1, and reduced ASC specks formation. Mechanistically, Corilagin alleviated the formation of ASC specks and blocked the interaction of ASC and pro-caspase1 by competitively binding with the caspase recruitment domain (CARD) of ASC. Additionally, Corilagin interrupted the TLR4-MyD88 interaction through targeting TIR domain of MyD88, leading to the inhibition of NF-κB activation and NLRP3 production. In addition, Corilagin downregulated genes associated with several inflammatory responses and inflammasome-related signaling pathways in LPS-stimulated macrophages. Overall, our results indicate that the inhibitory effect of Corilagin on pyroptosis through targeting TIR domain of MyD88 and binding the CARD domain of ASC in macrophages plays an essential role in protection against LPS-induced sepsis.
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Affiliation(s)
- Senquan Wu
- Department of Respiratory and Critical Care Medicine, Dongguan People's Hospital, Dongguan 523059, China; Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Jia Liao
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Guodong Hu
- Department of Respiratory and Critical Care Medicine, Dongguan People's Hospital, Dongguan 523059, China
| | - Liang Yan
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Xingyu Su
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Jiezhou Ye
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Chanjuan Zhang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Tian Tian
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Huadong Wang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China.
| | - Yiyang Wang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China.
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Fang H, Wang X, Damarla M, Sun R, He Q, Li R, Luo P, Liu JO, Xia Z. Dimethyl Fumarate Protects against Lipopolysaccharide- (LPS-) Induced Sepsis through Inhibition of NF- κB Pathway in Mice. Mediators Inflamm 2023; 2023:5133505. [PMID: 37840694 PMCID: PMC10569893 DOI: 10.1155/2023/5133505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 08/30/2023] [Accepted: 09/14/2023] [Indexed: 10/17/2023] Open
Abstract
Sepsis is one of the most severe complications and causes of mortality in the clinic. It remains a great challenge with no effective treatment for clinicians worldwide. Inhibiting the release of proinflammatory cytokines during sepsis is considered as an important strategy for treating sepsis and improving survival. In the present study, we have observed the effect of dimethyl fumarate (DMF) on lipopolysaccharide- (LPS-) induced sepsis and investigated the possible mechanism. By screening a subset of the Johns Hopkins Drug Library, we identified DMF as a novel inhibitor of nitric oxide synthesis in LPS-stimulated RAW264.7 cells, suggesting that DMF could be a potential drug to treat sepsis. To further characterize the effect of DMF on LPS signaling, TNF-α, MCP-1, G-CMF, and IL-6 expression levels were determined by using cytokine array panels. In addition, an endotoxemia model with C57BL/6 mice was used to assess the in vivo efficacy of DMF on sepsis. The survival rate was assessed, and HE staining was performed to investigate histopathological damage to the organs. DMF was found to increase the survival of septic mice by 50% and attenuate organ damage, consistent with the reduction in IL-10, IL-6, and TNF-α (inflammatory cytokines) in serum. In vitro experiments revealed DMF's inhibitory effect on the phosphorylation of p65, IκB, and IKK, suggesting that the primary inhibitory effects of DMF can be attributed, at least in part, to the inhibition of phosphorylation of IκBα, IKK as well as nuclear factor-κB (NF-κB) upon LPS stimulation. The findings demonstrate that DMF dramatically inhibits NO and proinflammatory cytokine production in response to LPS and improves survival in septic mice, raising the possibility that DMF has the potential to be repurposed as a new treatment of sepsis.
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Affiliation(s)
- He Fang
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, 168 ChangHai Road, Yangpu District, Shanghai 200433, China
- Department of Pharmacology and Molecular Sciences, School of Medicine, Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD 21205, USA
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, 168 ChangHai Road, Yangpu District, Shanghai 200433, China
| | - Xingtong Wang
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, 168 ChangHai Road, Yangpu District, Shanghai 200433, China
- Department of Pharmacology and Molecular Sciences, School of Medicine, Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD 21205, USA
- Department of Burns and Plastic Surgery, The Fourth Medical Center of General Hospital, The People's Liberation Army, Beijing 100048, China
| | - Mahendra Damarla
- Department of Pulmonary and Critical Care Medicine, The Johns Hopkins Hospital, 1830 E. Monument Street, Baltimore, MD 21287, USA
| | - Rongju Sun
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, 168 ChangHai Road, Yangpu District, Shanghai 200433, China
- Department of Pharmacology and Molecular Sciences, School of Medicine, Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD 21205, USA
- Department of Emergency, The Eighth Medical Center, General Hospital of PLA, Beijing 100853, China
| | - Qingli He
- Department of Pharmacology and Molecular Sciences, School of Medicine, Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD 21205, USA
- Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Ruojing Li
- Department of Pharmacology and Molecular Sciences, School of Medicine, Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD 21205, USA
| | - Pengfei Luo
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, 168 ChangHai Road, Yangpu District, Shanghai 200433, China
- Department of Pharmacology and Molecular Sciences, School of Medicine, Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD 21205, USA
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, 168 ChangHai Road, Yangpu District, Shanghai 200433, China
| | - Jun O. Liu
- Department of Pharmacology and Molecular Sciences, School of Medicine, Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD 21205, USA
| | - Zhaofan Xia
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, 168 ChangHai Road, Yangpu District, Shanghai 200433, China
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, 168 ChangHai Road, Yangpu District, Shanghai 200433, China
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Wang S, Sun H, Wang S, Ren Q, Dai Y, Zhu M, Zhang Y, Kang H, Li J, Xiao J, Dong Y, Wang W. α-Mangostin Exhibits a Therapeutic Effect on Spinal Cystic Echinococcosis by Affecting Glutamine Metabolism. Antimicrob Agents Chemother 2023; 67:e0009823. [PMID: 37140388 PMCID: PMC10269084 DOI: 10.1128/aac.00098-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 04/03/2023] [Indexed: 05/05/2023] Open
Abstract
Spinal cystic echinococcosis, a severely neglected, rare disease, is characterized by high morbidity, disability, and mortality in prevalent regions. Due to the high-risk nature of surgical treatment and the ineffectiveness of conventional drugs, there is an unmet need for novel safe and effective drugs for the treatment of this disease. In this study, we examined the therapeutic effects of α-mangostin for spinal cystic echinococcosis, and explored its potential pharmacological mechanism. The repurposed drug exhibited a potent in vitro protoscolicidal effect and significantly inhibited the evolution of larval encystation. Moreover, it demonstrated a remarkable anti-spinal cystic echinococcosis effect in gerbil models. Mechanistically, we found that α-mangostin intervention led to intracellular depolarization of mitochondrial membrane potential and reactive oxygen species generation. In addition, we observed elevated expression of autophagic proteins, aggregation of autophagic lysosomes, activated autophagic flux, and disrupted larval microstructure in protoscoleces. Further metabolite profiling showed that glutamine was imperative for autophagic activation and anti-echinococcal effects mediated by α-mangostin. These results suggest that α-mangostin is a potentially valuable therapeutic option against spinal cystic echinococcosis through its effect on glutamine metabolism.
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Affiliation(s)
- Sibo Wang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- The First Affiliated Hospital of Shihezi University, Shihezi City, Xinjiang Uygur Autonomous Region, China
| | - Haohao Sun
- The First Affiliated Hospital of Shihezi University, Shihezi City, Xinjiang Uygur Autonomous Region, China
| | - Shan Wang
- The First Affiliated Hospital of Shihezi University, Shihezi City, Xinjiang Uygur Autonomous Region, China
| | - Qian Ren
- The First Affiliated Hospital of Shihezi University, Shihezi City, Xinjiang Uygur Autonomous Region, China
| | - Yi Dai
- The First Affiliated Hospital of Shihezi University, Shihezi City, Xinjiang Uygur Autonomous Region, China
| | - Meipeng Zhu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yayun Zhang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Honglei Kang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Li
- The First Affiliated Hospital of Shihezi University, Shihezi City, Xinjiang Uygur Autonomous Region, China
| | - Jun Xiao
- The First Affiliated Hospital of Shihezi University, Shihezi City, Xinjiang Uygur Autonomous Region, China
| | - Yimin Dong
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weishan Wang
- The First Affiliated Hospital of Shihezi University, Shihezi City, Xinjiang Uygur Autonomous Region, China
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7
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Khayat MT, Mohammad KA, Mohamed GA, El-Agamy DS, Elsaed WM, Ibrahim SRM. γ-Mangostin abrogates AINT-induced cholestatic liver injury: Impact on Nrf2/NF-κB/NLRP3/Caspase-1/IL-1β/GSDMD signalling. Life Sci 2023; 322:121663. [PMID: 37023956 DOI: 10.1016/j.lfs.2023.121663] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/04/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023]
Abstract
γ-Mangostin (γ-MN) is one of the abundant xanthones separated from Garcinia mangostana (Clusiaceae) pericarps that has been reported to have varied bioactivities such as neuroprotective, cytotoxic, antihyperglycemic, antioxidant, and anti-inflammation. Yet, its effect on cholestatic liver damage (CLI) has not been investigated. This study explored the protective activity of γ-MN against alpha-naphthyl isothiocyanate (ANIT)-induced CLI in mice. The results showed that γ-MN protected against ANIT-induced CLI as indicated by reduced serum levels of hepatic injury parameters (e.g., ALT, AST, γ-GT, ALP, LDH, bilirubin, and total bile acids). ANIT-induced pathological lesions were improved in γ-MN pre-treated groups. γ-MN exerted potent antioxidant effects as it lowered the parameters of lipid peroxidation (4-HNE, PC, and MDA) and intensified the content and activity of antioxidants (TAC, GSH, GSH-Px, GST, and SOD) in the hepatic tissue. Furthermore, γ-MN enhanced the signalling of Nrf2/HO-1 as it augmented the mRNA expression of Nrf2/downstream genes (HO-1/GCLc/NQO1/SOD). The binding capacity and the immuno-expression of Nrf2 were also increased. γ-MN showed anti-inflammatory capacity as it suppressed the activation of NF-κB signalling, it decreased mRNA expression and levels of NF-κB/TNF-α/IL-6 and the immuno-expression of NF-κB/TNF-α. In addition, γ-MN inhibited the activation of NLRP3 inflammasome as it lowered the mRNA expression of NLRP3/caspase-1/IL-1β along with their levels as well as the immuno-expression of caspase-1/IL-1β. γ-MN also reduced the level of the pyroptotic parameter GSDMD. Collectively, this study demonstrated the potent hepatoprotective potential of γ-MN against CLI which was linked to its ability to potentiate Nrf2/HO-1 and to offset NF-κB/NLRP3/Caspase-1/IL-1β/GSDMD. Hence, γ-MN may be suggested as a new candidate for cholestatic patients.
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Affiliation(s)
- Maan T Khayat
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Khadijah A Mohammad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Gamal A Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Dina S El-Agamy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Wael M Elsaed
- Department of Anatomy and Embryology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Sabrin R M Ibrahim
- Department of Chemistry, Preparatory Year Program, Batterjee Medical College, Jeddah 21442, Saudi Arabia; Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt.
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8
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Vigneron C, Py BF, Monneret G, Venet F. The double sides of NLRP3 inflammasome activation in sepsis. Clin Sci (Lond) 2023; 137:333-351. [PMID: 36856019 DOI: 10.1042/cs20220556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 03/02/2023]
Abstract
Sepsis is defined as a life-threatening organ dysfunction induced by a dysregulated host immune response to infection. Immune response induced by sepsis is complex and dynamic. It is schematically described as an early dysregulated systemic inflammatory response leading to organ failures and early deaths, followed by the development of persistent immune alterations affecting both the innate and adaptive immune responses associated with increased risk of secondary infections, viral reactivations, and late mortality. In this review, we will focus on the role of NACHT, leucin-rich repeat and pyrin-containing protein 3 (NLRP3) inflammasome in the pathophysiology of sepsis. NLRP3 inflammasome is a multiproteic intracellular complex activated by infectious pathogens through a two-step process resulting in the release of the pro-inflammatory cytokines IL-1β and IL-18 and the formation of membrane pores by gasdermin D, inducing a pro-inflammatory form of cell death called pyroptosis. The role of NLRP3 inflammasome in the pathophysiology of sepsis can be ambivalent. Indeed, although it might protect against sepsis when moderately activated after initial infection, excessive NLRP3 inflammasome activation can induce dysregulated inflammation leading to multiple organ failure and death during the acute phase of the disease. Moreover, this activation might become exhausted and contribute to post-septic immunosuppression, driving impaired functions of innate and adaptive immune cells. Targeting the NLRP3 inflammasome could thus be an attractive option in sepsis either through IL-1β and IL-18 antagonists or through inhibition of NLRP3 inflammasome pathway downstream components. Available treatments and results of first clinical trials will be discussed.
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Affiliation(s)
- Clara Vigneron
- Centre International de Recherche en Infectiologie (CIRI), Univ Lyon, Inserm, U1111, Université Claude Bernard-Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Bénédicte F Py
- Centre International de Recherche en Infectiologie (CIRI), Univ Lyon, Inserm, U1111, Université Claude Bernard-Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Guillaume Monneret
- EA 7426 "Pathophysiology of Injury-Induced Immunosuppression" (Université Claude Bernard Lyon 1 - Hospices Civils de Lyon - bioMérieux), Joint Research Unit HCL-bioMérieux, Edouard Herriot Hospital, Lyon, France
- Immunology Laboratory, Hospices Civils de Lyon, Edouard Herriot Hospital, Lyon, France
| | - Fabienne Venet
- Centre International de Recherche en Infectiologie (CIRI), Univ Lyon, Inserm, U1111, Université Claude Bernard-Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon, France
- Immunology Laboratory, Hospices Civils de Lyon, Edouard Herriot Hospital, Lyon, France
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9
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Ji X, Jin P, Yu P, Wang P. Autophagy ameliorates Pseudomonas aeruginosa-infected diabetic wounds by regulating the toll-like receptor 4/myeloid differentiation factor 88 pathway. Wound Repair Regen 2023; 31:305-320. [PMID: 36879445 DOI: 10.1111/wrr.13074] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/11/2023] [Accepted: 02/18/2023] [Indexed: 03/08/2023]
Abstract
Diabetic foot ulcers (DFUs) are among the most common complications in patients with diabetes and a leading cause of lower extremity amputation. DFUs are exacerbated by prolonged bacterial infection; therefore, there is an urgent need for effective treatments to alleviate the burden associated with this condition. Although autophagy plays a unique role in pathogen phagocytosis and inflammation, its role in diabetic foot infections (DFIs) remains unclear. Pseudomonas aeruginosa (PA) is the most frequently isolated gram-negative bacterium from DFUs. Here, we evaluated the role of autophagy in ameliorating PA infection in wounds in a diabetic rat model and a bone marrow-derived macrophage (BMDM) hyperglycemia model. Both models were pretreated with or without rapamycin (RAPA) and then infected with or without PA. Pretreatment of rats with RAPA significantly enhanced PA phagocytosis, suppressed wound inflammation, reduced the M1:M2 macrophage ratio, and improved wound healing. In vitro investigation of the underlying mechanisms revealed that enhanced autophagy resulted in decreased macrophage secretion of inflammatory factors such as TNF-α, IL-6, and IL-1β but increased that of IL-10 in response to PA infection. Additionally, RAPA treatment significantly enhanced autophagy in macrophages by increasing LC3 and beclin-1 levels, which led to altered macrophage function. Furthermore, RAPA blocked the PA-induced TLR4/MyD88 pathway to regulate macrophage polarisation and inflammatory cytokine production, which was validated by RNA interference and use of the autophagy inhibitor 3-methyladenine (3-MA). These findings suggest enhancing autophagy as a novel therapeutic strategy against PA infection to ultimately improve diabetic wound healing.
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Affiliation(s)
- Xiaoyan Ji
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital &Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China.,Department of Emergency Ward, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Peng Jin
- Department of Gastric Surgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Pei Yu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital &Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Penghua Wang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital &Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
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10
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Zhang L, Cui T, Wang X. The Interplay Between Autophagy and Regulated Necrosis. Antioxid Redox Signal 2023; 38:550-580. [PMID: 36053716 PMCID: PMC10025850 DOI: 10.1089/ars.2022.0110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022]
Abstract
Significance: Autophagy is critical to cellular homeostasis. Emergence of the concept of regulated necrosis, such as necroptosis, ferroptosis, pyroptosis, and mitochondrial membrane-permeability transition (MPT)-derived necrosis, has revolutionized the research into necrosis. Both altered autophagy and regulated necrosis contribute to major human diseases. Recent studies reveal an intricate interplay between autophagy and regulated necrosis. Understanding the interplay at the molecular level will provide new insights into the pathophysiology of related diseases. Recent Advances: Among the three forms of autophagy, macroautophagy is better studied for its crosstalk with regulated necrosis. Macroautophagy seemingly can either antagonize or promote regulated necrosis, depending upon the form of regulated necrosis, the type of cells or stimuli, and other cellular contexts. This review will critically analyze recent advances in the molecular mechanisms governing the intricate dialogues between macroautophagy and main forms of regulated necrosis. Critical Issues: The dual roles of autophagy, either pro-survival or pro-death characteristics, intricate the mechanistic relationship between autophagy and regulated necrosis at molecular level in various pathological conditions. Meanwhile, key components of regulated necrosis are also involved in the regulation of autophagy, which further complicates the interrelationship. Future Directions: Resolving the controversies over causation between altered autophagy and a specific form of regulated necrosis requires approaches that are more definitive, where rigorous evaluation of autophagic flux and the development of more reliable and specific methods to quantify each form of necrosis will be essential. The relationship between chaperone-mediated autophagy or microautophagy and regulated necrosis remains largely unstudied. Antioxid. Redox Signal. 38, 550-580.
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Affiliation(s)
- Lei Zhang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
| | - Taixing Cui
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina, USA
| | - Xuejun Wang
- Division of Basic Biomedical Sciences, The University of South Dakota Sanford School of Medicine, Vermillion, South Dakota, USA
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11
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Li H, Qiu D, Yuan Y, Wang X, Wu F, Yang H, Wang S, Ma M, Qian Y, Zhan B, Yang X. Trichinella spiralis cystatin alleviates polymicrobial sepsis through activating regulatory macrophages. Int Immunopharmacol 2022; 109:108907. [PMID: 35691271 DOI: 10.1016/j.intimp.2022.108907] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Sepsis is a life-threateningorgandysfunction caused by the cytokine storm induced by the severe bacterial infection. Excessive inflammatory responses are responsible for the lethal organ damage during the early stage of sepsis. Helminth infection and helminth-derived proteins have been identified to have the ability to immunomodulate the host immune system by reducing inflammation against inflammatory diseases. Trichinella spiralis cystatin (Ts-Cys) is a cysteine protease inhibitor with strong immunomodulatory functions on host immune system. Our previous studies have shown that excretory-secretory proteins of T. spiralis reduced sepsis-induced inflammation and Ts-Cys was able to inhibit macrophages to produce inflammatory cytokines. Whether Ts-Cys has a therapeutic effect on polymicrobial sepsis and related immunological mechanism are not yet known. METHODS Sepsis was induced in BALB/c mice using cecal ligation and puncture (CLP), followed by intraperitoneal injection of 15 µg recombinant Ts-Cys (rTs-Cys). The therapeutic effect of rTs-Cys on sepsis was evaluated by observing the 72-hour survival rates of CLP-induced septic mice and the acute injury of lung and kidney through measuring the wet/dry weight ratio of lung, the levels of blood urea nitrogen (BUN) and creatinine (Cr) in sera and the tissue section pathology. The potential underlying mechanism was investigated using mouse bone marrow-derived macrophages (BMDMs) by observing the effect of rTs-Cys on LPS-stimulated macrophage polarization. The expression of genes associated with macrophage polarization in BMDMs and tissues of septic mice was measured by Western Blotting and qPCR. RESULTS In this study, we demonstrated the treatment with rTs-Cys alleviated CLP-induced sepsis in mice with significantly reduced pathological injury in vital organs of lung and kidney and reduced mortality of septic mice. The further study identified that treatment with rTs-Cys promoted macrophage polarization from classically activated macrophage (M1) to alternatively activated macrophage (M2) phenotype via inhibiting TLR2/MyD88 signal pathway and increasing expression of mannose receptor (MR), inhibited pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) and increased regulatory anti-inflammatory cytokines (IL-10 and TGF-β) in sera and tissues (lung and kidney) of mice with polymicrobial sepsis. CONCLUSIONS Our results demonstrated that rTs-Cys had a therapeutic effect on sepsis through activating regulatory macrophages possibly via suppressing TLR2/MyD88 signal pathway. We also identified that rTs-Cys-induced M2 macrophage differentiation was associated with increased expression of MR on the surface of macrophages. Our results underscored the importance of MR in regulating macrophages during the treatment with rTs-Cys, providing another immunological mechanism in which helminths and their derived proteins modulate the host immune system. The findings in this study suggest that rTs-Cys is a potential therapeutic agent for the prevention and treatment of sepsis and other inflammatory diseases.
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Affiliation(s)
- Huihui Li
- Department of Basic Medical College, Bengbu Medical College, Bengbu, China; Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Dapeng Qiu
- Department of Orthopedics, Second Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Yuan Yuan
- Department of Basic Medical College, Bengbu Medical College, Bengbu, China; Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Xiaoli Wang
- Department of Basic Medical College, Bengbu Medical College, Bengbu, China; Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Fengjiao Wu
- Department of Basic Medical College, Bengbu Medical College, Bengbu, China; Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Huijuan Yang
- Department of Nephrology, First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Shuying Wang
- Department of Basic Medical College, Bengbu Medical College, Bengbu, China; Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Mengxi Ma
- Department of Basic Medical College, Bengbu Medical College, Bengbu, China; Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Yayun Qian
- Department of Basic Medical College, Bengbu Medical College, Bengbu, China; Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Bin Zhan
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Xiaodi Yang
- Department of Basic Medical College, Bengbu Medical College, Bengbu, China; Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.
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12
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Wen R, Liu YP, Tong XX, Zhang TN, Yang N. Molecular mechanisms and functions of pyroptosis in sepsis and sepsis-associated organ dysfunction. Front Cell Infect Microbiol 2022; 12:962139. [PMID: 35967871 PMCID: PMC9372372 DOI: 10.3389/fcimb.2022.962139] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/06/2022] [Indexed: 12/17/2022] Open
Abstract
Sepsis, a life-threatening organ dysfunction caused by a dysregulated host response to infection, is a leading cause of death in intensive care units. The development of sepsis-associated organ dysfunction (SAOD) poses a threat to the survival of patients with sepsis. Unfortunately, the pathogenesis of sepsis and SAOD is complicated, multifactorial, and has not been completely clarified. Recently, numerous studies have demonstrated that pyroptosis, which is characterized by inflammasome and caspase activation and cell membrane pore formation, is involved in sepsis. Unlike apoptosis, pyroptosis is a pro-inflammatory form of programmed cell death that participates in the regulation of immunity and inflammation. Related studies have shown that in sepsis, moderate pyroptosis promotes the clearance of pathogens, whereas the excessive activation of pyroptosis leads to host immune response disorders and SAOD. Additionally, transcription factors, non-coding RNAs, epigenetic modifications and post-translational modifications can directly or indirectly regulate pyroptosis-related molecules. Pyroptosis also interacts with autophagy, apoptosis, NETosis, and necroptosis. This review summarizes the roles and regulatory mechanisms of pyroptosis in sepsis and SAOD. As our understanding of the functions of pyroptosis improves, the development of new diagnostic biomarkers and targeted therapies associated with pyroptosis to improve clinical outcomes appears promising in the future.
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Affiliation(s)
| | | | | | | | - Ni Yang
- *Correspondence: Tie-Ning Zhang, ; Ni Yang,
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13
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Zhang W, Jiang G, Zhou X, Huang L, Meng J, He B, Qi Y. α-Mangostin inhibits LPS-induced bone resorption by restricting osteoclastogenesis via NF-κB and MAPK signaling. Chin Med 2022; 17:34. [PMID: 35248101 PMCID: PMC8898470 DOI: 10.1186/s13020-022-00589-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/26/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Excessive osteoclast activation is an important cause of imbalanced bone remodeling that leads to pathological bone destruction. This is a clear feature of many osteolytic diseases such as rheumatoid arthritis, osteoporosis, and osteolysis around prostheses. Because many natural compounds have therapeutic potential for treating these diseases by suppressing osteoclast formation and function, we hypothesized that α-mangostin, a natural compound isolated from mangosteen, might be a promising treatment as it exhibits anti‐inflammatory, anticancer, and cardioprotective effects.
Methods
We evaluated the therapeutic effect of α-mangostin on the processes of osteoclast formation and bone resorption. The receptor activator of nuclear factor-κB (NF-κB) ligand (RANKL) induces osteoclast formation in vitro, and potential pathways of α-mangostin to inhibit osteoclast differentiation and function were explored. A mouse model of lipopolysaccharide‐induced calvarial osteolysis was established. Subsequently, micro-computed tomography and histological assays were used to evaluate the effect of α-mangostin in preventing inflammatory osteolysis.
Results
We found that α-mangostin could inhibit RANKL-induced osteoclastogenesis and reduced osteoclast‐related gene expression in vitro. F-actin ring immunofluorescence and resorption pit assays indicated that α-mangostin also inhibited osteoclast functions. It achieved these effects by disrupting the activation of NF-κB/mitogen-activated protein kinase signaling pathways. Our in vivo data revealed that α-mangostin could protect mouse calvarial bone from osteolysis.
Conclusions
Our findings demonstrate that α-mangostin can inhibit osteoclastogenesis both in vitro and in vivo and may be a potential option for treating osteoclast-related diseases.
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14
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Chen J, Bian M, Pan L, Yang H. α‐Mangostin protects lipopolysaccharide‐stimulated nucleus pulposus cells against NLRP3 inflammasome‐mediated apoptosis via the NF‐κB pathway. J Appl Toxicol 2022; 42:1467-1476. [PMID: 35187677 DOI: 10.1002/jat.4306] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Jingyang Chen
- Department of Orthopedics Ningbo Medical Center Lihuili Hospital Ningbo Zhejiang Province China
| | - Meiru Bian
- Department of Hematology The Affiliated Huai’an Hospital of Xuzhou Medical University and The Second People’s Hospital of Huai’an Huai’an Jiangsu Province China
| | - Lingxiao Pan
- Department of Orthopedics Ningbo Medical Center Lihuili Hospital Ningbo Zhejiang Province China
| | - Hanshi Yang
- Department of Orthopedics The Affiliated Huai’an Hospital of Xuzhou Medical University and The Second People’s Hospital of Huai’an Huai’an Jiangsu Province China
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15
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Wang QL, Yang L, Liu ZL, Peng Y, Gao M, Deng LT, Liu X, Xing W. Sirtuin 6 regulates macrophage polarization to alleviate sepsis-induced acute respiratory distress syndrome via dual mechanisms dependent on and independent of autophagy. Cytotherapy 2021; 24:149-160. [PMID: 34920961 DOI: 10.1016/j.jcyt.2021.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 08/11/2021] [Accepted: 09/04/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND AIMS Sepsis-induced acute respiratory distress syndrome (ARDS) can be mediated by an imbalance in macrophage polarization; however, the underlying mechanisms remain poorly understood. This study aimed to investigate the modulatory role of sirtuin 6 (SIRT6) in macrophage polarization during sepsis-induced ARDS. METHODS A mouse ARDS model was established using cecal ligation and puncture. Isolated alveolar macrophages (AMs) and lipopolysaccharide (LPS)-stimulated bone marrow-derived macrophages (BMDMs) were adopted as in vitro models. Macrophage polarization was evaluated by measuring M1 and M2 macrophage percentages via flow cytometry and expression of specific markers. The expression of microtubule-associated light chain protein 3I/II and beclin-1 was detected for assessing macrophage autophagy. Binding between specificity protein 1 (SP1) and the target gene promoter was evaluated using a chromatin immunoprecipitation assay. RNA expression was analyzed by quantitative reverse transcription polymerase chain reaction and western blotting. RESULTS Treatment with the SIRT6 activator UBCS039 significantly alleviated lung injury in the mouse ARDS model and enhanced autophagy and M2 polarization in isolated AMs. M2 polarization and autophagy in LPS-challenged BMDMs were also effectively promoted by UBCS039 treatment or SIRT6 overexpression. An adenosine monophosphate-activated protein kinase inhibitor (Compound C) or autophagy inhibitor (3-methyladenine) partially abrogated M2 polarization mediated by SIRT6 overexpression upon LPS exposure. SIRT6 induced autophagy and M2 polarization of BMDMs partially via its deacetylase activity. SIRT6 inhibited mammalian target of rapamycin transcription by modulating SP1 to promote BMDM M2 polarization, which was independent of autophagy. CONCLUSIONS SIRT6 promotes M2 polarization of macrophages to alleviate sepsis-induced ARDS in an autophagy-dependent and -independent manner.
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Affiliation(s)
- Qian-Lu Wang
- Department of Intensive Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Lei Yang
- Department of Preparations, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Zuo-Liang Liu
- Department of Intensive Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Yue Peng
- Department of Intensive Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Min Gao
- Department of Intensive Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Long-Tian Deng
- Department of Intensive Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xi Liu
- Department of Intensive Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Wei Xing
- Department of Intensive Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.
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16
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Yang Z, Yin Q, Olatunji OJ, Li Y, Pan S, Wang DD, Zuo J. Activation of cholinergic anti-inflammatory pathway involved in therapeutic actions of α-mangostin on lipopolysaccharide-induced acute lung injury in rats. Int J Immunopathol Pharmacol 2021; 34:2058738420954941. [PMID: 32886564 PMCID: PMC7485160 DOI: 10.1177/2058738420954941] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Introduction: Alpha-mangostin (MAN) possesses a wide variety of pharmacological effects. In
this study, we investigated its effect on cholinergic anti-inflammatory
pathway (CAP), and tested if CAP regulation was involved in the therapeutic
action on acute lung injury (ALI). Methods: Male Sprague Dawley rats were pre-treated with MAN (40 mg/kg) for 3 days and
ALI was induced with an intraperitoneal injection of lipopolysaccharide
(LPS). Certain rats received monolateral vagotomy or sham surgery. The
effects on inflammatory reactions and relevant pathways in ALI rats or LPS
pre-treated RAW 264.7 cells were investigated by histological,
immunohistochemical, immunoblotting, RT-qPCR, and immunofluorescence assays,
while levels of proinflammatory cytokines, acetylcholine (Ach) and the
enzymatic activity of acetylcholinesterase (AchE) were determined by
corresponding quantitative kits. Results: Oral administration of MAN reduced the severity of ALI, while vagotomy
surgery antagonized this effect. MAN restored the decline in α7 nicotinic
acetylcholine receptor (α7nAchR) in the lungs of ALI rats, and promoted the
expression of α7nAchR and choline acetyltransferase (CHAT) in RAW 264.7
cells. Although AchE expression was barely affected by MAN at 5 μg/ml, its
catalytic activity was reduced by almost 95%. Extracellular rather than
intracellular Ach was notably raised shortly after MAN treatment.
Furthermore, MAN at 5 μg/ml effectively inhibited LPS-induced increase in
phosphorylation and nucleus translocation of p65 subunit, and secretion of
TNF-α and IL-1β, which was then offset by methyllycaconitine citrate
hydrate. Conclusion: MAN activated CAP by increasing peripheral Ach and up-regulating α7nAchR
expression, which eventually led to NF-κB inhibition and remission of acute
inflammations.
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Affiliation(s)
- Zhe Yang
- Department of Traditional Chinese Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Qin Yin
- The Second Affiliated Hospital of Wannan Medical College, Wuhu, China
| | | | - Yan Li
- Department of Traditional Chinese Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Shu Pan
- The Second Affiliated Hospital of Wannan Medical College, Wuhu, China
| | - Dan-Dan Wang
- Department of Traditional Chinese Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Jian Zuo
- Department of Traditional Chinese Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
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17
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Autophagy Regulation on Pyroptosis: Mechanism and Medical Implication in Sepsis. Mediators Inflamm 2021; 2021:9925059. [PMID: 34257519 PMCID: PMC8253640 DOI: 10.1155/2021/9925059] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/14/2021] [Indexed: 02/07/2023] Open
Abstract
Sepsis is defined as a life-threatening disease involving multiple organ dysfunction caused by dysregulated host responses to infection. To date, sepsis remains a dominant cause of death among critically ill patients. Pyroptosis is a unique form of programmed cell death mediated by the gasdermin family of proteins and causes lytic cell death and release of proinflammatory cytokines. Although there might be some positive aspects to pyroptosis, it is regarded as harmful during sepsis and needs to be restricted. Autophagy was originally characterized as a homeostasis-maintaining mechanism in living cells. In the past decade, its function in negatively modulating pyroptosis and inflammation during sepsis has attracted increased attention. Here, we present a comprehensive review of the regulatory effect of autophagy on pyroptosis during sepsis, including the latest advances in our understanding of the mechanism and signaling pathways involved, as well as the potential therapeutic application in sepsis.
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18
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Xie H, Wu L, Chen X, Gao S, Li H, Yuan Y, Liang J, Wang X, Wang S, Xu C, Chu L, Zhan B, Zhou R, Yang X. Schistosoma japonicum Cystatin Alleviates Sepsis Through Activating Regulatory Macrophages. Front Cell Infect Microbiol 2021; 11:617461. [PMID: 33718268 PMCID: PMC7943722 DOI: 10.3389/fcimb.2021.617461] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 01/14/2021] [Indexed: 12/13/2022] Open
Abstract
Multi-organ failure caused by the inflammatory cytokine storm induced by severe infection is the major cause of death for sepsis. Sj-Cys is a cysteine protease inhibitor secreted by Schistosoma japonicum with strong immunomodulatory functions on host immune system. Our previous studies have shown that treatment with Sj-Cys recombinant protein (rSj-Cys) attenuated inflammation caused by sepsis. However, the immunological mechanism underlying the immunomodulation of Sj-Cys for regulating inflammatory diseases is not yet known. In this study, we investigated the effect of Sj-Cys on the macrophage M2 polarization and subsequent therapeutic effect on sepsis. The rSj-Cys was expressed in yeast Pichia pastoris. Incubation of mouse bone marrow-derived macrophages (BMDMs) with yeast-expressed rSj-Cys significantly activated the polarization of macrophages to M2 subtype characterized by the expression of F4/80+ CD206+ with the elated secretion of IL-10 and TGF-β. Adoptive transfer of rSj-Cys treated BMDMs to mice with sepsis induced by cecal ligation and puncture (CLP) significantly improved their survival rates and the systemic clinical manifestations of sepsis compared with mice receiving non-treated normal BMDMs. The therapeutic effect of Sj-Cys-induced M2 macrophages on sepsis was also reflected by the reduced pathological damages in organs of heart, lung, liver and kidney and reduced serological levels of tissue damage-related ALT, AST, BUN and Cr, associated with downregulated pro-inflammatory cytokines (IFN-gamma and IL-6) and upregulated regulatory anti-inflammatory cytokines (IL-10 and TGF-β). Our results demonstrated that Sj-Cys is a strong immunomodulatory protein with anti-inflammatory features through activating M2 macrophage polarization. The findings of this study suggested that Sj-Cys itself or Sj-Cys-induced M2 macrophages could be used as therapeutic agents in the treatment of sepsis or other inflammatory diseases.
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Affiliation(s)
- Hong Xie
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Department of Basic Medical College, Bengbu Medical College, Bengbu, China
| | - Lingqin Wu
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Department of Pediatric, First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Xingzhi Chen
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Department of Basic Medical College, Bengbu Medical College, Bengbu, China
| | - Shifang Gao
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Huihui Li
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Department of Basic Medical College, Bengbu Medical College, Bengbu, China
| | - Yuan Yuan
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Department of Basic Medical College, Bengbu Medical College, Bengbu, China
| | - Jinbao Liang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Xiaoli Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Department of Basic Medical College, Bengbu Medical College, Bengbu, China
| | - Shuying Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Department of Pediatric, First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Changyan Xu
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Department of Basic Medical College, Bengbu Medical College, Bengbu, China
| | - Liang Chu
- Department of General Surgery, Second Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Bin Zhan
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Rui Zhou
- Department of Pediatric, First Affiliated Hospital of Bengbu Medical College, Bengbu, China.,Anhui Province Key Laboratory of Immunology in Chronic Diseases of Bengbu Medical College, Bengbu, China
| | - Xiaodi Yang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Department of Basic Medical College, Bengbu Medical College, Bengbu, China
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19
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A review on α-mangostin as a potential multi-target-directed ligand for Alzheimer's disease. Eur J Pharmacol 2021; 897:173950. [PMID: 33607107 DOI: 10.1016/j.ejphar.2021.173950] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 02/03/2021] [Accepted: 02/12/2021] [Indexed: 12/20/2022]
Abstract
Alzheimer's disease (AD) is an age-related neurodegenerative disease characterized by progressive memory loss, declining language skills and other cognitive disorders. AD has brought great mental and economic burden to patients, families and society. However due to the complexity of AD's pathology, drugs developed for the treatment of AD often fail in clinical or experimental trials. The main problems of current anti-AD drugs are low efficacy due to mono-target method or side effects, especially high hepatotoxicity. To tackle these two main problems, multi-target-directed ligand (MTDL) based on "one molecule, multiple targets" has been studied. MTDLs can regulate multiple biological targets at the same time, so it has shown higher efficacy, better safety. As a natural active small molecule, α-mangostin (α-M) has shown potential multi-factor anti-AD activities in a series of studies, furthermore it also has a certain hepatoprotective effect. The good availability of α-M also provides support for its application in clinical research. In this work, multiple activities of α-M related to AD therapy were reviewed, which included anti-cholinesterase, anti-amyloid-cascade, anti-inflammation, anti-oxidative stress, low toxicity, hepatoprotective effects and drug formulation. It shows that α-M is a promising candidate for the treatment of AD.
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Irais CM, María-de-la-Luz SG, Dealmy DG, Agustina RM, Nidia CH, Mario-Alberto RG, Luis-Benjamín SG, María-Del-Carmen VM, David PE. Plant Phenolics as Pathogen-Carrier Immunogenicity Modulator Haptens. Curr Pharm Biotechnol 2020; 21:897-905. [PMID: 31965941 PMCID: PMC7536807 DOI: 10.2174/1389201021666200121130313] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 11/28/2019] [Accepted: 01/06/2020] [Indexed: 12/29/2022]
Abstract
Background Pathogens use multiple mechanisms to disrupt cell functioning in their host and allow pathogenesis. These mechanisms involve communication between the pathogen and the host cell through protein-protein interactions. Methods Protein-protein interactions chains referred to as signal transduction pathways are the processes by which a chemical or physical signal transmits through a cell as series of molecular events so the pathogen needs to intercept these molecular pathways at few positions to induce pathogenesis such as pathogen viability, infection or hypersensitivity. Results The pathogen nodes of interception are not necessarily the most immunogenic; so that novel immunogenicity-improvement strategies need to be developed thought a chemical conjugation of the pathogen-carrier nodes to develop an efficient immune response in order to block pathogenesis. On the other hand, if pathogen-carriers are immunogens; toleration ought to be induced by this conjugation avoiding hypersensitivity. Thus, this paper addresses the biological plausibility of plant-phenolics as pathogen-carrier immunogenicity modulator haptens. Conclusion The plant-phenolic compounds have in their structure functional groups such as hydroxyl, carbonyl, carboxyl, ester, or ether, capable of reacting with the amino or carbonyl groups of the amino acids of a pathogen-carrier to form conjugates. Besides, the varied carbon structures these phenolic compounds have; it is possible to alter the pathogen-carrier related factors that determine the immunogenicity: 1) Structural complexity, 2) Molecular size, 3) Structural heterogeneity, 4) Accessibility to antigenic determinants or epitopes, 5) Optical configuration, 6) Physical state, or 7) Molecular rigidity.
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Affiliation(s)
- Castillo-Maldonado Irais
- Department of Biochemistry, Center for Biomedical Research of the Faculty of Medicine, Torreon Unit, Autonomous University of Coahuila (UA de C), Torreon, Mexico
| | | | - Delgadillo-Guzmán Dealmy
- Department of Pharmacology, Faculty of Torreon Unit Medicine, Autonomous University of Coahuila (UA de C), Torreon, Mexico
| | - Ramírez-Moreno Agustina
- School of Sciences Biological Unit Torreon, Autonomous University of Coahuila (UA de C), Torreon, Mexico
| | - Cabral-Hipólito Nidia
- Department of Biochemistry, Center for Biomedical Research of the Faculty of Medicine, Torreon Unit, Autonomous University of Coahuila (UA de C), Torreon, Mexico
| | - Rivera-Guillén Mario-Alberto
- Department of Biochemistry, Center for Biomedical Research of the Faculty of Medicine, Torreon Unit, Autonomous University of Coahuila (UA de C), Torreon, Mexico
| | - Serrano-Gallardo Luis-Benjamín
- Department of Biochemistry, Center for Biomedical Research of the Faculty of Medicine, Torreon Unit, Autonomous University of Coahuila (UA de C), Torreon, Mexico
| | | | - Pedroza-Escobar David
- Department of Biochemistry, Center for Biomedical Research of the Faculty of Medicine, Torreon Unit, Autonomous University of Coahuila (UA de C), Torreon, Mexico
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21
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Masuelli L, Benvenuto M, Focaccetti C, Ciuffa S, Fazi S, Bei A, Miele MT, Piredda L, Manzari V, Modesti A, Bei R. Targeting the tumor immune microenvironment with "nutraceuticals": From bench to clinical trials. Pharmacol Ther 2020; 219:107700. [PMID: 33045254 DOI: 10.1016/j.pharmthera.2020.107700] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2020] [Indexed: 02/06/2023]
Abstract
The occurrence of immune effector cells in the tissue microenvironment during neoplastic progression is critical in determining tumor growth outcomes. On the other hand, tumors may also avoid immune system-mediated elimination by recruiting immunosuppressive leukocytes and soluble factors, which coordinate a tumor microenvironment that counteracts the efficiency of the antitumor immune response. Checkpoint inhibitor therapy results have indicated a way forward via activation of the immune system against cancer. Widespread evidence has shown that different compounds in foods, when administered as purified substances, can act as immunomodulators in humans and animals. Although there is no universally accepted definition of nutraceuticals, the term identifies a wide category of natural compounds that may impact health and disease statuses and includes purified substances from natural sources, plant extracts, dietary supplements, vitamins, phytonutrients, and various products with combinations of functional ingredients. In this review, we summarize the current knowledge on the immunomodulatory effects of nutraceuticals with a special focus on the cancer microenvironment, highlighting the conceptual benefits or drawbacks and subtle cell-specific effects of nutraceuticals for envisioning future therapies employing nutraceuticals as chemoadjuvants.
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Affiliation(s)
- Laura Masuelli
- Department of Experimental Medicine, University of Rome "Sapienza", Viale Regina Elena 324, 00161 Rome, Italy
| | - Monica Benvenuto
- Saint Camillus International University of Health and Medical Sciences, via di Sant'Alessandro 8, 00131 Rome, Italy; Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Chiara Focaccetti
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy; Department of Human Science and Promotion of the Quality of Life, San Raffaele University Rome, Via di Val Cannuta 247, 00166 Rome, Italy
| | - Sara Ciuffa
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Sara Fazi
- Department of Experimental Medicine, University of Rome "Sapienza", Viale Regina Elena 324, 00161 Rome, Italy
| | - Arianna Bei
- Medical School, University of Rome "Tor Vergata", 00133 Rome, Italy
| | - Martino Tony Miele
- Department of Experimental Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Lucia Piredda
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Vittorio Manzari
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Andrea Modesti
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Roberto Bei
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy; CIMER, University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy.
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Zhang HF, Zhang HB, Wu XP, Guo YL, Cheng WD, Qian F. Fisetin alleviates sepsis-induced multiple organ dysfunction in mice via inhibiting p38 MAPK/MK2 signaling. Acta Pharmacol Sin 2020; 41:1348-1356. [PMID: 32661350 PMCID: PMC7608145 DOI: 10.1038/s41401-020-0462-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 06/11/2020] [Indexed: 12/20/2022] Open
Abstract
Sepsis-induced multiple organ dysfunction and inflammatory response are life-threatening symptoms without effective treatment. Fisetin, a dietary flavonoid extracted from berries and family Fabaceae, has displayed neuroprotective and anti-oxidant activities. In this study we investigated whether fisetin exerted a protective effect against sepsis-induced multiple organ dysfunction in mouse cecum ligation and puncture (CLP) model. The mice were injected with fisetin (10 mg/kg, ip) 0.5 h prior to CLP, and sacrificed 18 h after CLP. We found that fisetin administration significantly alleviated CLP-induced lung, liver and kidney injury, as well as the expression levels of interleukin (IL)-6, tumor necrosis factor (TNF)-α and IL-1β in bronchoalveolar lavage fluid (BALF). In lipopolysaccharide (LPS)-treated mouse bone marrow-derived macrophages (BMDMs), application of fisetin (3–10 μM) dose-dependently inhibited the expression levels of IL-6, TNF-α, IL-1β, and inducible nitric oxide synthase (iNOS). Furthermore, fisetin dose-dependently inhibited the phosphorylation of p38 MAPK, MK2, and transforming growth factor-β-activated kinase (TAK) 1 via attenuating the interaction between TAK1 and TAK-binding proteins (TAB) 1. These results demonstrate that fisetin is a promising agent for protecting against sepsis-induced inflammatory response and organ injury via inhibiting macrophage activation.
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Gao Y, Dai X, Li Y, Li G, Lin X, Ai C, Cao Y, Li T, Lin B. Role of Parkin-mediated mitophagy in the protective effect of polydatin in sepsis-induced acute kidney injury. J Transl Med 2020; 18:114. [PMID: 32131850 PMCID: PMC7055075 DOI: 10.1186/s12967-020-02283-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/26/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND We have reported that polydatin (PD) alleviates mitochondrial dysfunction in rat models of sepsis-induced acute kidney injury (SI-AKI), but the mechanism is not well understood. Here, we investigated the role of Parkin-mediated mitophagy in the protective effects of PD in SI-AKI in mice. METHODS Sepsis was induced in the mice by caecal ligation and puncture. Mitophagy was determined by mitochondrial mass. NLRP3 inflammasome activation was determined by NLRP3, ASC and caspase-1. Mitophagy was blocked by treatment with mitochondrial division inhibitor-1 and Parkin knockout. KEY RESULTS PD treatment increased the sepsis-induced loss of mitochondrial mass, indicating the upregulation of mitophagy. Furthermore, PD treatment mediated Parkin translocation from the cytoplasm to the mitochondria. This suggests that Parkin-mediated mitophagy is an underlying mechanism. This was confirmed by the suppression of PD-induced mitophagy in Parkin-/- mice and in mice that were treated with a mitophagy inhibitor. PD-induced Parkin translocation and mitophagy were blocked by inhibiting SIRT1; thus, activation of SIRT1 might be an important molecular mechanism that is triggered by PD. Additionally, PD treatment protected against sepsis-induced kidney injury. These effects were blocked by inhibition of Parkin-dependent mitophagy. Furthermore, PD also protected against mitochondrial dysfunction and mitochondria-dependent apoptosis, and the effect was blocked when Parkin-dependent mitophagy was inhibited. Finally, PD suppressed NLRP3 inflammasome activation that was also dependent on Parkin-mediated mitophagy. CONCLUSIONS These findings indicate that Parkin-mediated mitophagy is important for the protective effect of PD in SI-AKI, and the underlying mechanisms include the inhibition of mitochondrial dysfunction and NLRP3 inflammasome activation.
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Affiliation(s)
- Youguang Gao
- Department of Anaesthesiology, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, Fujian, China
| | - Xingui Dai
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou/Affiliated Chenzhou Hospital, Southern Medical University, No. 102 Luojiajing, Chenzhou, 423000, China
| | - Yunfeng Li
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou/Affiliated Chenzhou Hospital, Southern Medical University, No. 102 Luojiajing, Chenzhou, 423000, China
| | - Guicheng Li
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou/Affiliated Chenzhou Hospital, Southern Medical University, No. 102 Luojiajing, Chenzhou, 423000, China
| | - Xianzhong Lin
- Department of Anaesthesiology, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, Fujian, China
| | - Chenmu Ai
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou/Affiliated Chenzhou Hospital, Southern Medical University, No. 102 Luojiajing, Chenzhou, 423000, China
| | - Yuanyuan Cao
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou/Affiliated Chenzhou Hospital, Southern Medical University, No. 102 Luojiajing, Chenzhou, 423000, China
| | - Tao Li
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou/Affiliated Chenzhou Hospital, Southern Medical University, No. 102 Luojiajing, Chenzhou, 423000, China.
| | - Bo Lin
- Department of Anaesthesiology, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, Fujian, China.
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Cao Z, Wang Y, Long Z, He G. Interaction between autophagy and the NLRP3 inflammasome. Acta Biochim Biophys Sin (Shanghai) 2019; 51:1087-1095. [PMID: 31609412 DOI: 10.1093/abbs/gmz098] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Indexed: 12/15/2022] Open
Abstract
Autophagy, a metabolic pathway that plays an important role in maintaining the dynamic balance of cells, has two types, i.e. non-selective autophagy and selective autophagy. The role of non-selective autophagy is primarily to allow cells to circulate nutrients in an energy-limited environment, while selective autophagy primarily cleans up the organelles inside the cells to maintain the cell structure. The NLRP3 inflammasome is an innate immune response produced by the organism that can promote the secretion of interleukin-1β and interleukin-18 through caspase-1 activation and resist the damage of some pathogens. However, when the NLRP3 inflammasome is overactivated, it can cause various inflammatory diseases, such as inflammatory liver disease and inflammatory bowel disease. Many previous studies have shown that autophagy can inhibit the NLRP3 inflammasome, while in recent years, new studies have found that autophagy can also promote the NLRP3 inflammasome in some cases, and the NLRP3 inflammasome can, in turn, affect autophagy. In this review, the interaction between autophagy and the NLRP3 inflammasome is explored, and then the application of this interaction in disease treatment is discussed.
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Affiliation(s)
- Zhenrui Cao
- Chongqing Key Laboratory of Neurobiology, Institute of Neuroscience, Chongqing Medical University, Chongqing 400016, China
| | - Yanhao Wang
- Chongqing Key Laboratory of Neurobiology, Institute of Neuroscience, Chongqing Medical University, Chongqing 400016, China
| | - Zhimin Long
- Chongqing Key Laboratory of Neurobiology, Institute of Neuroscience, Chongqing Medical University, Chongqing 400016, China
- Department of Anatomy, Chongqing Medical University, Chongqing 400016, China
| | - Guiqiong He
- Chongqing Key Laboratory of Neurobiology, Institute of Neuroscience, Chongqing Medical University, Chongqing 400016, China
- Department of Anatomy, Chongqing Medical University, Chongqing 400016, China
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Wang H, Zhong P, Sun L. Exogenous hydrogen sulfide mitigates NLRP3 inflammasome-mediated inflammation through promoting autophagy via the AMPK-mTOR pathway. Biol Open 2019; 8:bio.043653. [PMID: 31315822 PMCID: PMC6679392 DOI: 10.1242/bio.043653] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was to investigate whether exogenous hydrogen sulfide (H2S) could mitigate NLRP3 inflammasome-mediated inflammation through promoting autophagy via the AMPK-mTOR pathway in L02 cells. L02 cells were stimulated with different concentrations of oleic acid (OA), then cell viability and the protein expression of NLRP3 and pro-caspase-1 were detected by MTT and western blot, respectively, to determine appropriate OA concentration in this study. The cells were divided into four groups: the cells in the control group were cultured with RPMI-1640 for 24.5 h; the cells in the OA group were cultured with RPMI-1640 for 0.5 h, then were stimulated with 1.2 mmol/l OA for 24 h; the cells in the NaHS+OA group were pretreated with sodium hydrogen sulfide (NaHS, a donor of H2S) for 0.5 h before exposure to OA for 24 h; and the cells in the NaHS group were treated with NaHS 0.5 h, then were cultured with RPMI-1640 for 24 h. Subsequently, the cells in every group were collected and the protein expression of NLRP3, procaspase-1, cleaved caspase-1, P62, LC3, Beclin1, T-AMPK, P-AMPK, T-mTOR, P-mTOR and the level of IL-1β were detected by western blot and ElISA, respectively. Exogenous H2S reduced the level of NLRP3, caspase-1, P62, IL-1β and the ratio of P-mTOR/T-mTOR induced by OA and increased the ratio of LC3 II/I and the protein expression of Beclin1 suppressed by OA. This study demonstrates for the first time that H2S might suppress NLRP3 inflammasome-mediated inflammation induced by OA through promoting autophagy via the AMPK-mTOR pathway. It provides a theoretical basis for the further study of the anti-inflammatory mechanism of H2S. Summary: We prove that exogenous H2S can suppress NLRP3-mediated inflammation by promoting autophagy via the AMPK/mTOR pathway in L02 cells, providing insights into the anti-inflammatory mechanism of H2S.
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Affiliation(s)
- Honggang Wang
- Institute of Biomedical Informatics, Bioinformatics Center, School of Basic Medical Sciences, Henan University, Kaifeng 475000, China
| | - Peiyu Zhong
- Institute of Biomedical Informatics, Bioinformatics Center, School of Basic Medical Sciences, Henan University, Kaifeng 475000, China
| | - Leilei Sun
- Institute of Biomedical Informatics, Bioinformatics Center, School of Basic Medical Sciences, Henan University, Kaifeng 475000, China
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Regulation of Inflammasome by Autophagy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1209:109-123. [DOI: 10.1007/978-981-15-0606-2_7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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