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Wan J, Liu D, Pan S, Zhou S, Liu Z. NLRP3-mediated pyroptosis in diabetic nephropathy. Front Pharmacol 2022; 13:998574. [PMID: 36304156 PMCID: PMC9593054 DOI: 10.3389/fphar.2022.998574] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Diabetic nephropathy (DN) is the main cause of end-stage renal disease (ESRD), which is characterized by a series of abnormal changes such as glomerulosclerosis, podocyte loss, renal tubular atrophy and excessive deposition of extracellular matrix. Simultaneously, the occurrence of inflammatory reaction can promote the aggravation of DN-induced kidney injury. The most important processes in the canonical inflammasome pathway are inflammasome activation and membrane pore formation mediated by gasdermin family. Converging studies shows that pyroptosis can occur in renal intrinsic cells and participate in the development of DN, and its activation mechanism involves a variety of signaling pathways. Meanwhile, the activation of the NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome can not only lead to the occurrence of inflammatory response, but also induce pyroptosis. In addition, a number of drugs targeting pyroptosis-associated proteins have been shown to have potential for treating DN. Consequently, the pathogenesis of pyroptosis and several possible activation pathways of NLRP3 inflammasome were reviewed, and the potential drugs used to treat pyroptosis in DN were summarized in this review. Although relevant studies are still not thorough and comprehensive, these findings still have certain reference value for the understanding, treatment and prognosis of DN.
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Affiliation(s)
- Jiayi Wan
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
| | - Dongwei Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
| | - Shaokang Pan
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
| | - Sijie Zhou
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
- *Correspondence: Sijie Zhou, ; Zhangsuo Liu,
| | - Zhangsuo Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
- *Correspondence: Sijie Zhou, ; Zhangsuo Liu,
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Gao Y, Chen H, Cang X, Chen H, Di Y, Qi J, Cai H, Luo K, Jin S. Transplanted hair follicle mesenchymal stem cells alleviated small intestinal ischemia–reperfusion injury via intrinsic and paracrine mechanisms in a rat model. Front Cell Dev Biol 2022; 10:1016597. [PMID: 36274835 PMCID: PMC9581151 DOI: 10.3389/fcell.2022.1016597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/21/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Small intestinal ischemia-reperfusion (IR) injury is a common intestinal disease with high morbidity and mortality. Mesenchymal stem cells (MSCs) have been increasingly used in various intestinal diseases. This study aimed to evaluate the therapeutic effect of hair follicle MSCs (HFMSCs) on small intestinal IR injury. Methods: We divided Sprague–Dawley rats into three groups: the sham group, IR group and IR + HFMSCs group. A small intestinal IR injury rat model was established by clamping of the superior mesenteric artery (SMA) for 30 min and reperfusion for 2 h. HFMSCs were cultured in vitro and injected into the rats through the tail vein. Seven days after treatment, the intrinsic homing and differentiation characteristics of the HFMSCs were observed by immunofluorescence and immunohistochemical staining, and the paracrine mechanism of HFMSCs was assessed by Western blotting and enzyme-linked immunosorbent assay (ELISA). Results: A small intestinal IR injury model was successfully established. HFMSCs could home to damaged sites, express proliferating cell nuclear antigen (PCNA) and intestinal stem cell (ISC) markers, and promote small intestinal ISC marker expression. The expression levels of angiopoietin-1 (ANG1), vascular endothelial growth factor (VEGF) and insulin growth factor-1 (IGF1) in the IR + HFMSCs group were higher than those in the IR group. HFMSCs could prevent IR-induced apoptosis by increasing B-cell lymphoma-2 (Bcl-2) expression and decreasing Bcl-2 homologous antagonist/killer (Bax) expression. Oxidative stress level detection showed that the malondialdehyde (MDA) content was decreased, while the superoxide dismutase (SOD) content was increased in the IR + HFMSCs group compared to the IR group. An elevated diamine oxidase (DAO) level reflected the potential protective effect of HFMSCs on the intestinal mucosal barrier. Conclusion: HFMSCs are beneficial to alleviate small intestinal IR injury through intrinsic homing to the small intestine and by differentiating into ISCs, via a paracrine mechanism to promote angiogenesis, reduce apoptosis, regulate the oxidative stress response, and protect intestinal mucosal function potentially. Therefore, this study suggests that HFMSCs serve as a new option for the treatment of small intestinal IR injury.
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Ghafouri-Fard S, Shoorei H, Poornajaf Y, Hussen BM, Hajiesmaeili Y, Abak A, Taheri M, Eghbali A. NLRP3: Role in ischemia/reperfusion injuries. Front Immunol 2022; 13:926895. [PMID: 36238294 PMCID: PMC9552576 DOI: 10.3389/fimmu.2022.926895] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 09/01/2022] [Indexed: 12/05/2022] Open
Abstract
NLR family pyrin domain containing 3 (NLRP3) is expressed in immune cells, especially in dendritic cells and macrophages and acts as a constituent of the inflammasome. This protein acts as a pattern recognition receptor identifying pathogen-associated molecular patterns. In addition to recognition of pathogen-associated molecular patterns, it recognizes damage-associated molecular patterns. Triggering of NLRP3 inflammasome by molecules ATP released from injured cells results in the activation of the inflammatory cytokines IL-1β and IL-18. Abnormal activation of NLRP3 inflammasome has been demonstrated to stimulate inflammatory or metabolic diseases. Thus, NLRP3 is regarded as a proper target for decreasing activity of NLRP3 inflammasome. Recent studies have also shown abnormal activity of NLRP3 in ischemia/reperfusion (I/R) injuries. In the current review, we have focused on the role of this protein in I/R injuries in the gastrointestinal, neurovascular and cardiovascular systems.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Shoorei
- Clinical Research Development Unit of Tabriz Valiasr Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Yadollah Poornajaf
- Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
- Center of Research and Strategic Studies, Lebanese French University, Erbil, Iraq
| | | | - Atefe Abak
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
- *Correspondence: Mohammad Taheri, ; Ahmad Eghbali,
| | - Ahmad Eghbali
- Anesthesiology Research Center, Mofid Children Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Mohammad Taheri, ; Ahmad Eghbali,
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Ye X, Zhang P, Zhang Y, Luan J, Xu C, Wu Z, Ju D, Hu W. GSDMD contributes to myocardial reperfusion injury by regulating pyroptosis. Front Immunol 2022; 13:893914. [PMID: 36217543 PMCID: PMC9546776 DOI: 10.3389/fimmu.2022.893914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundGasdermin D (GSDMD) plays an essential role in the pathway of pyroptosis. However, whether GSDMD participates in myocardial ischaemia/reperfusion injury (MI/RI) remains poorly understood.MethodsSerum levels of GSDMD and IL-18 in ST-segment elevation myocardial infarction (STEMI) patients were measured by ELISA. The expression of GSDMD and GSDMD N-terminal (GSDMD-NT) in vivo and in vitro was assessed by western blot and immunofluorescence staining. GSDMD-/- mice and wild type (WT) mice were induced MI/RI, followed by cardiac ultrasound and histological analysis.ResultsClinically, patients suffering from STEMI after percutaneous coronary intervention (PCI) exhibited higher levels of GSDMD and IL-18 than that in the controls. In vitro, the cleavage of GSDMD was significantly upregulated in macrophages exposed to hypoxia/reoxygenation or H2O2. In vivo, the levels of GSDMD and GSDMD-NT increased notably after MI/RI, especially in macrophages infiltrating in the infarct area. Moreover, compared with WT mice, GSDMD-/- mice showed reduced infarct size (25.45 ± 3.07% versus 36.47 ± 3.72%), improved left ventricular ejection fraction (37.71 ± 1.81% versus 29.44 ± 2.28%) and left ventricular fractional shortening (18.01 ± 0.97% versus 13.62 ± 1.15%) as well as attenuated pathological damage after I/R injury, along with reduced levels of proinflammatory cytokines and decreased infiltration of neutrophils.ConclusionsOur study revealed that GSDMD deficiency significantly alleviated the inflammatory response by regulating pyroptosis, reduced the infarct size and preserved cardiac function after MI/RI, thus providing a potential strategy for the treatment of myocardial reperfusion injury.
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Affiliation(s)
- Xiaomiao Ye
- Department of Cardiology, Minhang Hospital, Fudan University, Shanghai, China
| | - Peng Zhang
- Department of Cardiology, Minhang Hospital, Fudan University, Shanghai, China
| | - Yuting Zhang
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, China
| | - Jingyun Luan
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, China
| | - Caili Xu
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, China
| | - Zhengyu Wu
- TAU Cambridge Ltd, Cambridge, United Kingdom
| | - Dianwen Ju
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, China
- Minhang Hospital, Fudan University, Shanghai, China
- *Correspondence: Dianwen Ju, ; Wei Hu,
| | - Wei Hu
- Department of Cardiology, Minhang Hospital, Fudan University, Shanghai, China
- *Correspondence: Dianwen Ju, ; Wei Hu,
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Activating SIRT3 in peritoneal mesothelial cells alleviates postsurgical peritoneal adhesion formation by decreasing oxidative stress and inhibiting the NLRP3 inflammasome. EXPERIMENTAL & MOLECULAR MEDICINE 2022; 54:1486-1501. [PMID: 36100663 PMCID: PMC9535009 DOI: 10.1038/s12276-022-00848-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 07/02/2022] [Accepted: 07/19/2022] [Indexed: 11/08/2022]
Abstract
Peritoneal adhesions (PAs) are a serious complication of abdominal surgery and negatively affect the quality of life of millions of people worldwide. However, a clear molecular mechanism and a standard therapeutic strategy for PAs have not been established. Here, we developed a standardized method to mimic the pathological changes in PAs and found that sirtuin 3 (SIRT3) expression was severely decreased in adhesion tissues, which was consistent with our bioinformatics analysis and patient adhesion tissue analysis. Thus, we hypothesized that activating SIRT3 could alleviate postsurgical PAs. Sirt3-deficient (Sirt3−/−) mice exhibited many more PAs after standardized abdominal surgery. Furthermore, compared with wild-type (Sirt3+/+) mice, Sirt3-deficient (Sirt3−/−) mice showed more prominent reactive oxygen species (ROS) accumulation, increased levels of inflammatory factors, and exacerbated mitochondrial damage and fragmentation. In addition, we observed NLRP3 inflammasome activation in the adhesion tissues of Sirt3−/− but, not Sirt3+/+ mice. Furthermore, mesothelial cells sorted from Sirt3−/− mice exhibited impaired mitochondrial bioenergetics and redox homeostasis. Honokiol (HKL), a natural compound found in several species of the genus Magnolia, could activate SIRT3 in vitro. Then, we demonstrated that treatment with HKL could reduce oxidative stress and the levels of inflammatory factors and suppress NLRP3 activation in vivo, reducing the occurrence of postsurgical PAs. In vitro treatment with HKL also restored mitochondrial bioenergetics and promoted mesothelial cell viability under oxidative stress conditions. Taken together, our findings show that the rescue of SIRT3 by HKL may be a new therapeutic strategy to alleviate and block postsurgical PA formation. Treatment with honokiol, a compound found in magnolia tree bark, significantly reduces formation of internal scar tissue after abdominal surgery in mice. Healing of incisions in the peritoneum, the connective tissue lining the abdomen, can result in scar tissue bonds known as peritoneal adhesions (PA), causing complications such as infertility or bowel obstructions. The mechanism of PA formation is unknown, and no therapies are available. Xuqi Li at The First Affiliated Hospital of Xi’an Jiaotong University, China, and co-workers found that PA tissues in both mice and human patients had decreased levels of SIRT3, a stress-response protein. Mice lacking SIRT3 showed increased inflammation and PA formation. When mice were treated with honokiol the day after surgery in order to boost SIRT3 levels, PA formation was significantly decreased. These results suggest a possible preventative treatment for post-surgical PAs.
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Song D, Yeh CT, Wang J, Guo F. Perspectives on the mechanism of pyroptosis after intracerebral hemorrhage. Front Immunol 2022; 13:989503. [PMID: 36131917 PMCID: PMC9484305 DOI: 10.3389/fimmu.2022.989503] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 08/17/2022] [Indexed: 12/18/2022] Open
Abstract
Intracerebral hemorrhage (ICH) is a highly harmful neurological disorder with high rates of mortality, disability, and recurrence. However, effective therapies are not currently available. Secondary immune injury and cell death are the leading causes of brain injury and a poor prognosis. Pyroptosis is a recently discovered form of programmed cell death that differs from apoptosis and necrosis and is mediated by gasdermin proteins. Pyroptosis is caused by multiple pathways that eventually form pores in the cell membrane, facilitating the release of inflammatory substances and causing the cell to rupture and die. Pyroptosis occurs in neurons, glial cells, and endothelial cells after ICH. Furthermore, pyroptosis causes cell death and releases inflammatory factors such as interleukin (IL)-1β and IL-18, leading to a secondary immune-inflammatory response and further brain damage. The NOD-like receptor protein 3 (NLRP3)/caspase-1/gasdermin D (GSDMD) pathway plays the most critical role in pyroptosis after ICH. Pyroptosis can be inhibited by directly targeting NLRP3 or its upstream molecules, or directly interfering with caspase-1 expression and GSDMD formation, thus significantly improving the prognosis of ICH. The present review discusses key pathological pathways and regulatory mechanisms of pyroptosis after ICH and suggests possible intervention strategies to mitigate pyroptosis and brain dysfunction after ICH.
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Affiliation(s)
- Dengpan Song
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chi-Tai Yeh
- Department of Medical Research and Education, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- *Correspondence: Fuyou Guo, ; Jian Wang, ; Chi-Tai Yeh,
| | - Jian Wang
- Department of Pain Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- *Correspondence: Fuyou Guo, ; Jian Wang, ; Chi-Tai Yeh,
| | - Fuyou Guo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Fuyou Guo, ; Jian Wang, ; Chi-Tai Yeh,
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The Effect of Genistein on Anastomotic Healing in Intestinal Ischemia/Reperfusion Injury. J Surg Res 2022; 280:389-395. [PMID: 36037616 DOI: 10.1016/j.jss.2022.07.039] [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: 02/19/2022] [Revised: 07/22/2022] [Accepted: 07/30/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Genistein is a natural isoflavonoid and has several pharmacological effects, such as antioxidant, antitumor activity, and improvement of glucose metabolism. The safety of intestinal anastomosis after ischemia-reperfusion (I/R) injury is a critical issue for surgeons. This experimental study aimed to investigate the effects of genistein on anastomotic healing after intestinal I/R injury. METHODS A total of 36 male Wistar Albino rats were divided into four groups: control, I/R, genistein, and genistein + I/R. The control group received segmental ileal resection and ileoileal anastomosis. The I/R group received resection + anastomosis after intestinal I/R. The genistein group was administered subcutaneous injection of 1 mg/kg genistein 12 h and 1 h before the procedure and received ileal resection + anastomosis. The genistein + I/R group received I/R + ileal resection + anastomosis after genistein injection. Anastomotic bursting pressure, hydroxyproline, superoxide dismutase, and glutathione peroxidase levels and histopathological wound healing scores of all rats were measured on postoperative day 5. RESULTS The anastomotic bursting pressure was significantly higher in the genistein and genistein + I/R groups (P < 0.001). Genistein increased the hydroxyproline concentration and the superoxide dismutase and glutathione peroxidase levels in the intestinal anastomosis (P < 0.001). In histopathological assessment, the mean wound healing score was significantly higher in the genistein group than in the other groups (P < 0.001). CONCLUSIONS Genistein, with its anti-inflammatory and antioxidant properties, shows protective effects against increased oxidative stress after intestinal I/R injury and contributes positively to intestinal anastomotic healing.
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Activation of LRP1 Ameliorates Cerebral Ischemia/Reperfusion Injury and Cognitive Decline by Suppressing Neuroinflammation and Oxidative Stress through TXNIP/NLRP3 Signaling Pathway in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8729398. [PMID: 36035210 PMCID: PMC9410841 DOI: 10.1155/2022/8729398] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/03/2022] [Indexed: 11/17/2022]
Abstract
Cerebral ischemia/reperfusion (I/R) injury is a clinical event associated with high morbidity and mortality. Neuroinflammation plays a crucial role in the pathogenesis of I/R-induced brain injury and cognitive decline. Low-density lipoprotein receptor-related protein-1 (LRP1) can exert strong neuroprotection in experimental intracerebral hemorrhage. However, whether LRP1 can confer neuroprotective effects after cerebral I/R is yet to be elucidated. The present study is aimed at investigating the effects of LRP1 activation on cerebral I/R injury and deducing the underlying mechanism involving TXNIP/NLRP3 signaling pathway. Cerebral I/R injury was induced in mice by bilateral common carotid artery occlusion. LPR1 ligand, apoE-mimic peptide COG1410, was administered intraperitoneally. To elucidate the underlying mechanism, overexpression of TXNIP was achieved via the hippocampal injection of AAV-TXNIP before COG1410 treatment. Neurobehavioral tests, brain water content, immunofluorescence, Western blot, enzyme-linked immunosorbent assay, HE, and terminal deoxynucleotidyl transferase dUTP nick end labeling staining were performed. Our results showed that the expressions of endogenous LRP1, TXNIP, NLRP3, procaspase-1, and cleaved caspase-1 were increased after cerebral I/R. COG1410 significantly ameliorated cerebral I/R-induced neurobehavioral deficits, brain edema, histopathological damage, and poor survival rate. Interestingly, COG1410 inhibited microglia proinflammatory polarization and promoted anti-inflammatory polarization, decreased oxidative stress, attenuated apoptosis, and inhibited the expression of the TXNIP/NLRP3 signaling pathway. However, the benefits of COG1410 were abolished by TXNIP overexpression. Thus, our study suggested that LRP1 activation with COG1410 attenuated cerebral I/R injury at least partially related to modulating microglial polarization through TXNIP/NLRP3 signaling pathway in mice. Thus, COG1410 treatment might serve as a promising therapeutic approach in the management of cerebral I/R patients.
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Phenolic Acids from Fructus Chebulae Immaturus Alleviate Intestinal Ischemia-Reperfusion Injury in Mice through the PPARα/NF-κB Pathway. Molecules 2022; 27:molecules27165227. [PMID: 36014464 PMCID: PMC9415796 DOI: 10.3390/molecules27165227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/05/2022] [Accepted: 08/11/2022] [Indexed: 12/13/2022] Open
Abstract
Intestinal ischemia/reperfusion (II/R) injury is a common life-threatening complication with high morbidity and mortality. Chebulae Fructus Immaturus, the unripe fruit of Terminalia chebula Retz., also known as “Xiqingguo” or “Tibet Olive” in China, has been widely used in traditional Tibetan medicine throughout history. The phenolic acids’ extract of Chebulae Fructus Immaturus (XQG for short) has exhibited strong antioxidative, anti-inflammation, anti-apoptosis, and antibacterial activities. However, whether XQG can effectively ameliorate II/R injuries remains to be clarified. Our results showed that XQG could effectively alleviate II/R-induced intestinal morphological damage and intestinal barrier injury by decreasing the oxidative stress, inflammatory response, and cell death. Transcriptomic analysis further revealed that the main action mechanism of XQG protecting against II/R injury was involved in activating PPARα and inhibiting the NF-κB-signaling pathway. Our study suggests the potential usage of XQG as a new candidate to alleviate II/R injury.
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Wan Y, Dong P, Zhu X, Lei Y, Shen J, Liu W, Liu K, Zhang X. Bibliometric and visual analysis of intestinal ischemia reperfusion from 2004 to 2022. Front Med (Lausanne) 2022; 9:963104. [PMID: 36052333 PMCID: PMC9426633 DOI: 10.3389/fmed.2022.963104] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 07/27/2022] [Indexed: 11/23/2022] Open
Abstract
Background Intestinal ischemia/reperfusion (I/R) injury is a common tissue-organ damage occurring in surgical practice. This study aims to comprehensively review the collaboration and impact of countries, institutions, authors, subject areas, journals, keywords, and critical literature on intestinal I/R injury from a bibliometric perspective, and to assess the evolution of clustering of knowledge structures and identify hot trends and emerging topics. Methods Articles and reviews related to intestinal I/R were retrieved through subject search from Web of Science Core Collection. Bibliometric analyses were conducted on Excel 365, CiteSpace, VOSviewer, and Bibliometrix (R-Tool of R-Studio). Results A total of 1069 articles and reviews were included from 2004 to 2022. The number of articles on intestinal I/R injury gradually plateaued, but the number of citations increased. These publications were mainly from 985 institutions in 46 countries, led by China and the United States. Liu Kx published the most papers, while Chiu Cj had the largest number of co-citations. Analysis of the journals with the most outputs showed that most journals focused on surgical sciences, cell biology, and immunology. Macroscopic sketch and microscopic characterization of the entire knowledge domain were achieved through co-citation analysis. The roles of cell death, exosomes, intestinal flora, and anesthetics in intestinal I/R injury are the current and developing research focuses. The keywords "dexmedetomidine", "proliferation", and "ferroptosis" may also become new trends and focus of future research. Conclusion This study comprehensively reviews the research on intestinal I/R injury using bibliometric and visualization methods, and will help scholars better understand the dynamic evolution of intestinal I/R injury and provide directions for future research.
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Affiliation(s)
- Yantong Wan
- College of Anesthesiology, Southern Medical University, Guangzhou, China
| | - Peng Dong
- College of Anesthesiology, Southern Medical University, Guangzhou, China
| | - Xiaobing Zhu
- Department of Anesthesiology, Hospital of Traditional Chinese Medicine of Zhongshan City, Zhongshan, China
| | - Yuqiong Lei
- Department of Anesthesiology, Nan Fang Hospital, Southern Medical University, Guangzhou, China
| | - Junyi Shen
- The Second Clinical Medical College, Southern Medical University, Guangzhou, China
| | - Weifeng Liu
- Department of Anesthesiology, Nan Fang Hospital, Southern Medical University, Guangzhou, China
| | - Kexuan Liu
- Department of Anesthesiology, Nan Fang Hospital, Southern Medical University, Guangzhou, China
| | - Xiyang Zhang
- Department of Anesthesiology, Nan Fang Hospital, Southern Medical University, Guangzhou, China
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Chi F, Zhang G, Ren N, Zhang J, Du F, Zheng X, Zhang C, Lin Z, Li R, Shi X, Zhu Y. The anti-alcoholism drug disulfiram effectively ameliorates ulcerative colitis through suppressing oxidative stresses-associated pyroptotic cell death and cellular inflammation in colonic cells. Int Immunopharmacol 2022; 111:109117. [PMID: 35969897 DOI: 10.1016/j.intimp.2022.109117] [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: 03/18/2022] [Revised: 07/06/2022] [Accepted: 07/29/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Oxidative stress, cell pyroptosis and inflammation are considered as important pathogenic factors for ulcerative colitis (UC) development, and the traditional anti-alcoholism drug disulfiram (DSF) has recently been reported to exert its regulating effects on all the above cellular functions, which makes DSF as ideal therapeutic agent for UC treatment, but this issue has not been fully studied. METHODS Dextran sulfate sodium (DSS)-induced animal models in C57BL/6J mice and lipopolysaccharide (LPS)-induced cellular models in colonic cell lines (HT-29 and Caco-2) for UC were respectively established. Cytokine secretion was determined by ELISA. Cell viability and proliferation were evaluated by MTT assay and EdU assay. Real-Time qPCR, Western Blot, immunofluorescent staining assay and immunohistochemistry (IHC) were employed to evaluate gene expressions. The correlations of the genes in the clinical tissues were analyzed by using the Pearson Correlation analysis. RESULTS DSF restrained oxidative stress, pyroptotic cell death and cellular inflammation in UC models in vitro and in vivo, and elimination of Reactive Oxygen Species (ROS) by N-acetyl-l-cysteine (NAC) rescued cell viability in LPS-treated colonic cells (HT-29 and Caco-2). Further experiments suggested that a glycogen synthase kinase-3β (GSK-3β)/Nrf2/NLRP3 signaling cascade played critical role in this process. Mechanistically, DSF downregulated GSK-3β and NLRP3, whereas upregulated Nrf2 in LPS-treated colonic cells. Also, the regulating effects of DSF on Nrf2 and NLRP3 were abrogated by upregulating GSK-3β. Moreover, upregulation of GSK-3β abolished the protective effects of DSF on LPS-treated colonic cells. CONCLUSIONS Taken together, data of this study indicated that DSF restrained oxidative damages-related pyroptotic cell death and inflammation via regulating the GSK-3β/Nrf2/NLRP3 pathway, leading to the suppression of LPS-induced UC development.
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Affiliation(s)
- Fengxu Chi
- Department of Colorectal Surgery, The First Affiliated Hospital of Harbin Medical University, Qunli Seventh Street No. 2075, Daoli District, Harbin 150001, Heilongjiang, China
| | - Guangquan Zhang
- Department of Hepatobiliary Pancreatic Surgery, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shennan Middle Road No. 3025, Shenzhen 518033, China.
| | - Niansheng Ren
- Department of Colorectal Surgery, The First Affiliated Hospital of Harbin Medical University, Qunli Seventh Street No. 2075, Daoli District, Harbin 150001, Heilongjiang, China.
| | - Jian Zhang
- Department of Tumor Laparoscopic Surgery, The First Affiliated Hospital of Harbin Medical University, Youzheng Road No. 23, Nangang District, Harbin 150001, Heilongjiang, China.
| | - Fei Du
- Department of Hepatobiliary Pancreatic Surgery, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shennan Middle Road No. 3025, Shenzhen 518033, China
| | - Xiyan Zheng
- Department of Hepatobiliary Pancreatic Surgery, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shennan Middle Road No. 3025, Shenzhen 518033, China
| | - Cong Zhang
- Department of Colorectal Surgery, The First Affiliated Hospital of Harbin Medical University, Qunli Seventh Street No. 2075, Daoli District, Harbin 150001, Heilongjiang, China
| | - Zhiqun Lin
- Department of Hepatobiliary Pancreatic Surgery, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shennan Middle Road No. 3025, Shenzhen 518033, China
| | - Ruixi Li
- Department of Hepatobiliary Pancreatic Surgery, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shennan Middle Road No. 3025, Shenzhen 518033, China.
| | - Xianjie Shi
- Department of Hepatobiliary Pancreatic Surgery, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shennan Middle Road No. 3025, Shenzhen 518033, China.
| | - Yuekun Zhu
- Department of Colorectal Surgery, The First Affiliated Hospital of Harbin Medical University, Qunli Seventh Street No. 2075, Daoli District, Harbin 150001, Heilongjiang, China.
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Wang F, Gu L, Wang Y, Sun D, Zhao Y, Meng Q, Yin L, Xu L, Lu X, Peng J, Lin Y, Sun P. MicroRNA-122a aggravates intestinal ischemia/reperfusion injury by promoting pyroptosis via targeting EGFR-NLRP3 signaling pathway. Life Sci 2022; 307:120863. [DOI: 10.1016/j.lfs.2022.120863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/25/2022] [Accepted: 08/02/2022] [Indexed: 11/26/2022]
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Xiong X, Lu L, Wang Z, Ma J, Shao Y, Liu Y, Zhai M, Jin P, Yang J, Zheng Q, Liu J, Yang L. Irisin attenuates sepsis-induced cardiac dysfunction by attenuating inflammation-induced pyroptosis through a mitochondrial ubiquitin ligase-dependent mechanism. Biomed Pharmacother 2022; 152:113199. [PMID: 35653888 DOI: 10.1016/j.biopha.2022.113199] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/18/2022] [Accepted: 05/23/2022] [Indexed: 11/28/2022] Open
Abstract
Sepsis-induced cardiac dysfunction is a leading cause of mortality in intensive care units. However, the molecular mechanisms underlying septic cardiomyopathy remain elusive. Irisin is a cleaved product of fibronectin type III domain-containing protein 5 (FNDC5) that protects the heart from ischemia/reperfusion injury through upregulation of mitochondrial ubiquitin ligase (MITOL). Gasdermin D (GSDMD)-dependent pyroptosis plays a pivotal role in septic cardiomyopathy by regulating mitochondrial homeostasis. However, whether irisin can regulate MITOL to inhibit GSDMD-dependent pyroptosis in septic cardiomyopathy is yet to be investigated. Thus, this study was designed to explore the role of irisin in septic cardiomyopathy and its underlying molecular mechanisms. Our results demonstrate that irisin improves cardiac function against sepsis-induced cardiac dysfunction by reducing cardiac inflammation and myocardial pyroptosis. Using MITOL siRNA in vitro, the results revealed that the protective role of irisin against lipopolysaccharide (LPS)-induced cell injury was mediated by MITOL activation and the resulting inhibition of GSDMD-dependent pyroptosis. Moreover, irisin alleviated LPS-induced H9c2 cell injury by suppressing IL-1β expression and reducing serum LDH and CK-MB concentrations in a MITOL/GSDMD-dependent manner. Collectively, our data suggest that irisin treatment ameliorates cardiac dysfunction in septic cardiomyopathy by activating MITOL and inhibiting GSDMD-dependent pyroptosis. These findings highlight the clinical relevance and therapeutic potential of irisin and MITOL for the management of sepsis-induced cardiac dysfunction.
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Affiliation(s)
- Xiang Xiong
- Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, China; Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China.
| | - Linhe Lu
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China.
| | - Zhenyi Wang
- Department of Anesthesiology, Xi'an Children's Hospital, Xi'an 710002, China.
| | - Jipeng Ma
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China.
| | - Yalan Shao
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China.
| | - Yang Liu
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China.
| | - Mengen Zhai
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China.
| | - Ping Jin
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China.
| | - Jian Yang
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China.
| | - Qijun Zheng
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China; Department of Cardiovascular Surgery, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen 518020, China.
| | - Jincheng Liu
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710032, China.
| | - Lifang Yang
- Department of Anesthesiology, Xi'an Children's Hospital, Xi'an 710002, China.
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Jiang M, Wan S, Dai X, Ye Y, Hua W, Ma G, Pang X, Wang H, Shi B. Protective effect of ghrelin on intestinal I/R injury in rats. Open Med (Wars) 2022; 17:1308-1317. [PMID: 35937002 PMCID: PMC9307145 DOI: 10.1515/med-2022-0520] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 11/15/2022] Open
Abstract
Abstract
This study aimed to investigate whether ghrelin affected the autophagy and inflammatory response of intestinal intraepithelial lymphocytes (IELs) by regulating the NOD2/Beclin-1 pathway in an intestinal ischemia–reperfusion (I/R) injury model. Twenty hours after implementing the intestinal I/R injury rat model, the small intestine and both lungs were collected for histological analysis. The morphological changes in the intestinal mucosa epithelium and lung tissues were evaluated using hematoxylin-eosin staining. The activity of autophagic vacuoles and organ injury were evaluated using electron microscopy. The cytokine levels (IL-10 and TNF-α) in IEL cells and lung tissue were determined using enzyme-linked immunosorbent assay. RT-qPCR and western blot assays were conducted to check the NOD2, Beclin-1, and ATG16 levels. Ghrelin relieved the I/R-induced destruction of the intestinal mucosa epithelium and lung tissues. Moreover, ghrelin enhanced autophagy in the intestinal epithelium and lungs of I/R rats. In addition, the levels of autophagy-associated proteins (Beclin-1, ATG16, and NOD2) were higher in the ghrelin treatment group than in rats with I/R. Ghrelin reduced significantly the IL-10 and TNF-α levels. However, these changes were reversed by the NOD2 antagonist. In conclusion, ghrelin may relieve I/R-induced acute intestinal mucosal damage, autophagy disorder, and inflammatory response in IELs by regulating the NOD2/Beclin-1 pathway.
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Affiliation(s)
- Meng Jiang
- Department of Emergency Intensive Care Unit, Yangpu Hospital, Tongji University , Shanghai 200090 , China
| | - Shengxia Wan
- Department of Neurology, The Fourth Affiliated Hospital of Jiangsu University , Zhenjiang 212000 , China
| | - Xiaoyong Dai
- Department of Emergency Intensive Care Unit, Yangpu Hospital, Tongji University , Shanghai 200090 , China
| | - Youwen Ye
- Department of Emergency Intensive Care Unit, Yangpu Hospital, Tongji University , Shanghai 200090 , China
| | - Wei Hua
- Department of Emergency Intensive Care Unit, Yangpu Hospital, Tongji University , Shanghai 200090 , China
| | - Guoguang Ma
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University , Shanghai 200032 , China
| | - Xiufeng Pang
- Department of Emergency Intensive Care Unit, Yangpu Hospital, Tongji University , Shanghai 200090 , China
| | - Huanhuan Wang
- Department of Emergency Intensive Care Unit, Yangpu Hospital, Tongji University , Shanghai 200090 , China
| | - Bin Shi
- Department of Emergency Intensive Care Unit, Yangpu Hospital, Tongji University , Shanghai 200090 , China
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Current knowledge of pyroptosis in heart diseases. J Mol Cell Cardiol 2022; 171:81-89. [PMID: 35868567 DOI: 10.1016/j.yjmcc.2022.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/22/2022] [Accepted: 07/13/2022] [Indexed: 10/17/2022]
Abstract
Pyroptosis is a form of pro-inflammatory, necrotic cell death mediated by proteins of the gasdermin family. Various heart diseases, including myocardial ischemia/reperfusion injury, myocardial infarction, and heart failure, involve cardiomyocyte and non-myocyte pyroptosis. Cardiomyocyte pyroptosis also causes the release of pro-inflammatory cytokines. Recent studies have confirmed that pyroptosis is predominantly triggered by both the canonical and non-canonical inflammasome pathways, which independently facilitate caspase-1 or caspase-11/4/5 activation and gasdermin D (GSDMD) cleavage. Cardiac fibroblast and myeloid cell pyroptosis also contributes to the pathogenesis and development of heart diseases. This review summarizes the recent studies on pyroptosis in heart diseases and discusses the associated therapeutic targets.
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Wang JW, Ye XY, Wei N, Wu SS, Zhang ZH, Luo GH, Li X, Li J, Cao H. Reactive Oxygen Species Contributes to Type 2 Diabetic Neuropathic Pain via the Thioredoxin-Interacting Protein-NOD-Like Receptor Protein 3-N-Methyl-D-Aspartic Acid Receptor 2B Pathway. Anesth Analg 2022; 135:865-876. [PMID: 35819160 PMCID: PMC9444295 DOI: 10.1213/ane.0000000000006117] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND The number of patients with diabetic neuropathic pain (DNP) continues to increase, but available treatments are limited. This study aimed to examine the influence of reactive oxygen species (ROS)-thioredoxin-interacting protein (TXNIP)-NOD-like receptor protein 3 (NLRP3)-N-methyl-D-aspartic acid receptor 2B (NR2B) pathway on type 2 DNP. METHODS Male Sprague-Dawley rats were fed with a high-fat and high-sugar diet for 8 weeks. Then, rats were intraperitoneally injected with streptozotocin (STZ, 35 mg/kg) to induce type 2 diabetes mellitus in rats. Diabetic rats with <85% of their basic levels in mechanical withdrawal threshold and thermal withdrawal latency were classified as DNP rats on day 14 after STZ injection. DNP rats were treated with ROS scavenger N-tert-Butyl-α-phenylnitrone (PBN, 100 mg·kg-1·d-1) or TXNIP small interfering ribonucleic acid (10 μg/d) once daily for 14 days. The level of ROS, protein levels of NLRP3, TXNIP, cysteinyl aspartate-specific proteinase-1 (caspase-1), interleukin-1β (IL-1β), NR2B phosphorylation at Tyr1472 (p-NR2B), total NR2B (t-NR2B), and distribution of NLRP3 in the spinal cord were examined. In vitro experiments, BV2 cells and PC12 cells were individually cultured and cocultured in a high-glucose environment (35 mmol/L D-glucose). The level of ROS and protein levels of NLRP3, TXNIP, caspase-1, and IL-1β in BV2 cells, and p-NR2B, t-NR2B in PC12 cells were detected. The level of ROS was detected by the flow cytometry approach. The protein levels were detected by the Western blot technique. The location of NLRP3 was observed by immunofluorescent staining. The interaction between TXNIP and NLRP3 was detected by coimmunoprecipitation assay. RESULTS The level of spinal ROS increased in DNP rats. The mechanical allodynia and thermal hyperalgesia of DNP rats were alleviated after systemic administration of PBN. This administration decreased protein levels of NLRP3, TXNIP, caspase-1, IL-1β, and p-NR2B and the coupling of TXNIP to NLRP3 in spinal cords of DNP rats. Furthermore, knockdown of spinal TXNIP alleviated nociceptive hypersensitivity and decreased protein levels of NLRP3, TXNIP, caspase-1, IL-1β, and p-NR2B in DNP rats. The level of ROS and protein levels of NLRP3, TXNIP, caspase-1, IL-1β, the coupling of TXNIP to NLRP3, and the IL-1β secretion increased in BV2 cells, and the protein expression of p-NR2B increased in cocultured PC12 cells in a high-glucose environment. All of these in vitro effects were significantly blocked after treatment of PBN. CONCLUSIONS Our findings suggest that spinal ROS can contribute to type 2 DNP through TXNIP-NLRP3-NR2B pathway.
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Affiliation(s)
- Jun-Wu Wang
- From the Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Pain Medicine Institute, Wenzhou Medical University, Zhejiang, China
| | - Xiu-Ying Ye
- From the Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Pain Medicine Institute, Wenzhou Medical University, Zhejiang, China
| | - Ning Wei
- From the Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Pain Medicine Institute, Wenzhou Medical University, Zhejiang, China
| | - Shi-Shu Wu
- From the Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Pain Medicine Institute, Wenzhou Medical University, Zhejiang, China
| | - Zhe-Hao Zhang
- From the Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Pain Medicine Institute, Wenzhou Medical University, Zhejiang, China
| | - Guang-Hui Luo
- From the Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Pain Medicine Institute, Wenzhou Medical University, Zhejiang, China
| | - Xu Li
- Basic Medicine College of Wenzhou Medical University, Zhejiang, China
| | - Jun Li
- From the Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Pain Medicine Institute, Wenzhou Medical University, Zhejiang, China
| | - Hong Cao
- From the Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Pain Medicine Institute, Wenzhou Medical University, Zhejiang, China
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Expression and Mechanism of TXNIP/NLRP3 Inflammasome in Sciatic Nerve of Type 2 Diabetic Rats. DISEASE MARKERS 2022; 2022:9696303. [PMID: 35845136 PMCID: PMC9286945 DOI: 10.1155/2022/9696303] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/13/2022] [Accepted: 06/17/2022] [Indexed: 11/18/2022]
Abstract
Objective To determine the expression profiling and mechanism of thioredoxin-interacting protein (TXNIP)/nucleotide-binding domain-like receptor protein 3 (NLRP3) inflammasome pathway in sciatic nerve (SN) of type 2 diabetes mellitus (T2DM) rats. Methods Ten out of the 35 healthy SD rats (specific pathogen free) purchased were randomized into the control group, while the others were established a T2DM model by feeding a high-fat and high-sugar diet plus laparoscopic injection of 1% streptozotocin (STZ). The successfully modeled rats were subgrouped into two arms: a DM group with 10 rats and a resveratrol- (RES-) treated DM intervention group with 11 rats. Normal saline to control and DM groups. Alterations in fasting blood glucose (FBG) and body weight (BW) at different time points after administration were observed. Sciatic nerve conduction velocity (SNCV) and mechanical pain threshold (MPT) were measured. TXNIP, NLRP3, caspase-1, and interleukin- (IL-) 1β levels in rat SN tissue were determined. Results DM group rats showed higher FBG and lower BW than control rats at different time points (P < 0.05). The FBG of DM intervention group at 2, 4, and 6 weeks after administration was lower, and the BW at 4 and 6 weeks after dosing was higher than DM group. Higher MPT and SNCV were determined in DM intervention group versus DM group (P < 0.05). DM group rats had disordered, swollen, and dissolved SN myelin sheath structure; TXNIP inhibition led to a small amount of nerve myelin fragments and mild pathological changes. Lower TXNIP, NLRP3, caspase-1, and IL-1β protein levels were found in DM intervention group versus DM group (P < 0.05). Conclusion The pathogenesis of peripheral neuropathy in T2DM rats may be linked to TXNIP/NLRP3 inflammasome pathway activation, indicating the potential of this pathway as a therapeutic target for diabetic peripheral neuropathy (DPN).
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Dai L, Zhu L, Ma S, Liu J, Zhang M, Li J, Luo Y, Zhou X, Chen Q, Wang L, Huang Y, Chen Y. Berberine alleviates NLRP3 inflammasome induced endothelial junction dysfunction through Ca 2+ signalling in inflammatory vascular injury. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 101:154131. [PMID: 35533609 DOI: 10.1016/j.phymed.2022.154131] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 04/07/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Berberine has received rising attention for its application in cardiovascular disease because of its relationship with inflammation. The endothelial NLRP3 inflammasome triggers inflammatory vascular injury which would lead to cardiovascular disease. Endothelial calcium signalling plays a crucial role in both the activation of NLRP3 inflammasome and endothelial cells dysfunction. However, the efficacy of BBR on the endothelial NLRP3 inflammasome in inflammatory vascular injury remains unknown. PURPOSE In this study, we focused on the NLRP3 pathway to determine whether BBR regulates endothelial junction function in inflammatory vascular injury. METHODS The integrity of the junction proteins VE-cadherin (VEC) and zonula occludens-1 (ZO-1) detected by immunofluorescence and immunoblotting was used to determine the therapeutic effect of BBR (50, 100, or 200 mg/kg/day) in LPS (100 μg/kg/day)-induced inflammatory vascular injury in mice and mouse microvascular endothelial cells (MECs) treated with LPS (1 μLPS ) and ATP (5 mM). Endothelial permeability was assessed by FITC-labelled dextran and trans-endothelial electrical resistance (TEER) in vitro. The assembly and activation of NLRP3 inflammasomes were detected by western blotting and immunofluorescence. Pharmacophore-based virtual molecular docking studies and calcium imaging analyses were used to determine the interaction of BBR with the ATP-gated Ca2+ channel P2X7R (purinergic P2X receptor 7) in the context of inflammatory vascular injury. RESULTS BBR recovered the expression of ZO-1 and VEC and inhibited endothelial NLRP3 inflammasome activation in coronary microvascular endothelium and in MECs. These results suggested a crucial role of the NLRP3 inflammasome in BBR-regulated endothelial integrity. Further analysis demonstrated that BBR treatment suppressed the binding of TXNIP (thioredoxin interacting protein) with NLRP3. Intriguingly, eliminating extracellular Ca2+ showed a similar effect as BBR. Virtual docking analysis indicated that R574 of P2X7R is a potential target for BBR binding. Ca2+ imaging showed that BBR inhibited the Ca2+ influx in response to ATP, supporting the potential interaction of BBR with P2X7R. CONCLUSIONS These findings suggest that BBR exhibits potential and specific therapeutic value by targeting calcium signals and the endothelial NLRP3 inflammasome in inflammatory vascular injury.
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Affiliation(s)
- Linfeng Dai
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China
| | - Li Zhu
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China
| | - Shiyu Ma
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Jingya Liu
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China
| | - Minyi Zhang
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China
| | - Jieyi Li
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China
| | - Yong Luo
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China
| | - Xing Zhou
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China
| | - Qiuxiong Chen
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Lei Wang
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China.
| | - Yi Huang
- Department of Stomatology, The First Affiliated Hospital, The school of Dental Medicine, Jinan University, Guangzhou, China.
| | - Yang Chen
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China.
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Gao Y, Zhang H, Wang Y, Han T, Jin J, Li J, Tang Y, Liu C. L-Cysteine Alleviates Myenteric Neuron Injury Induced by Intestinal Ischemia/Reperfusion via Inhibitin the Macrophage NLRP3-IL-1β Pathway. Front Pharmacol 2022; 13:899169. [PMID: 35754513 PMCID: PMC9213754 DOI: 10.3389/fphar.2022.899169] [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: 03/18/2022] [Accepted: 04/26/2022] [Indexed: 11/13/2022] Open
Abstract
Ischemia/reperfusion injury is a common pathophysiological process in the clinic. It causes various injuries, multiple organ dysfunction, and even death. There are several possible mechanisms about ischemia/reperfusion injury, but the influence on intestinal myenteric neurons and the underlying mechanism are still unclear. C57BL6/J mice were used to establish the ischemia/reperfusion model in vivo. Peritoneal macrophages were used for ATP depletion and hypoxia/reoxygenation experiment in vitro. L-cysteine, as the substrate of hydrogen sulfide, is involved in many physiological and pathological processes, including inflammation, metabolism, neuroprotection, and vasodilation. In the current study, we confirmed that intestinal ischemia/reperfusion led to the injury of myenteric neurons. From experiments in vitro and in vivo, we demonstrated that L-cysteine protected myenteric neurons from the injury. AOAA reversed the protective effect of L-cysteine. Also, L-cysteine played a protective role mainly by acting on intestinal macrophages via decreasing the expression of NLRP3, cleaved caspase-1, and mature IL-1β. L-cysteine increased cystathionine beta synthase and H2S produced by intestinal macrophages to protect myenteric mature neurons and enteric neural precursor cells from apoptosis. Moreover, the addition of IL-1β-neutralizing antibody alleviated the injury of myenteric neurons and enteric neural precursor cells caused by intestinal ischemia/reperfusion. Our study provided a new target for the protection of myenteric neurons in clinical intestinal ischemia/reperfusion injury.
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Affiliation(s)
- Yifei Gao
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Haojie Zhang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Yujin Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Ting Han
- Department of Gastroenterology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Jing Jin
- Department of TCM Rheumatology, China-Japan Friendship Hospital, Beijing, China
| | - Jingxin Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Yan Tang
- Department of Gastroenterology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Chuanyong Liu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China.,Provincial Key Lab of Mental Disorders, Shandong University, Jinan, China
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MicroRNA-1224-5p Aggravates Sepsis-Related Acute Lung Injury in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9493710. [PMID: 35799888 PMCID: PMC9256451 DOI: 10.1155/2022/9493710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 06/06/2022] [Indexed: 12/22/2022]
Abstract
Oxidative stress and inflammation are implicated in the development of sepsis-related acute lung injury (ALI). MicroRNA-1224-5p (miR-1224-5p) plays critical roles in regulating inflammatory response and reactive oxygen species (ROS) production. The present study is aimed at investigating the role and underlying mechanisms of miR-1224-5p in sepsis-related ALI. Mice were intratracheally injected with lipopolysaccharide (LPS, 5 mg/kg) for 12 h to induce sepsis-related ALI. To manipulate miR-1224-5p level, mice were intravenously injected with the agomir, antagomir, or matched controls for 3 consecutive days. Murine peritoneal macrophages were stimulated with LPS (100 ng/mL) for 6 h to further validate the role of miR-1224-5p in vitro. To inhibit adenosine 5′-monophosphate-activated protein kinase alpha (AMPKα) or peroxisome proliferator activated receptor-gamma (PPAR-γ), compound C or GW9662 was used in vivo and in vitro. We found that miR-1224-5p levels in lungs were elevated by LPS injection, and that the miR-1224-5p antagomir significantly alleviated LPS-induced inflammation, oxidative stress, and ALI in mice. Conversely, the miR-1224-5p agomir aggravated inflammatory response, ROS generation, and pulmonary dysfunction in LPS-treated mice. In addition, the miR-1224-5p antagomir reduced, while the miR-1224-5p agomir aggravated LPS-induced inflammation and oxidative stress in murine peritoneal macrophages. Further findings revealed that miR-1224-5p is directly bound to the 3′-untranslated regions of PPAR-γ and subsequently suppressed PPAR-γ/AMPKα axis, thereby aggravating LPS-induced ALI in vivo and in vitro. We demonstrate for the first time that endogenous miR-1224-5p is a critical pathogenic factor for inflammation and oxidative damage during LPS-induced ALI through inactivating PPAR-γ/AMPKα axis. Targeting miR-1224-5p may help to develop novel approaches to treat sepsis-related ALI.
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Drug D, a Diosgenin Derive, Inhibits L-Arginine-Induced Acute Pancreatitis through Meditating GSDMD in the Endoplasmic Reticulum via the TXNIP/HIF-1α Pathway. Nutrients 2022; 14:nu14132591. [PMID: 35807771 PMCID: PMC9268286 DOI: 10.3390/nu14132591] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 12/13/2022] Open
Abstract
Acute pancreatitis (AP) is one of the most common causes of hospitalization for gastrointestinal diseases, with high morbidity and mortality. Endoplasmic reticulum stress (ERS) and Gasdermin D (GSDMD) mediate AP, but little is known about their mutual influence on AP. Diosgenin has excellent anti-inflammatory and antioxidant effects. This study investigated whether Diosgenin derivative D (Drug D) inhibits L-arginine-induced acute pancreatitis through meditating GSDMD in the endoplasmic reticulum (ER). Our studies were conducted in a mouse model of L-arginine-induced AP as well as in an in vitro model on mouse pancreatic acinar cells. The GSDMD accumulation in ER was found in this study, which caused ERS of acinar cells. GSDMD inhibitor Disulfiram (DSF) notably decreased the expression of GSDMD in ER and TXNIP/HIF-1α signaling. The molecular docking study indicated that there was a potential interaction between Drug D and GSDMD. Our results showed that Drug D significantly inhibited necrosis of acinar cells dose-dependently, and we also found that Drug D alleviated pancreatic necrosis and systemic inflammation by inhibiting the GSDMD accumulation in the ER of acinar cells via the TXNIP/HIF-1α pathway. Furthermore, the level of p-IRE1α (a marker of ERS) was also down-regulated by Drug D in a dose-dependent manner in AP. We also found that Drug D alleviated TXNIP up-regulation and oxidative stress in AP. Moreover, our results revealed that GSDMD-/- mitigated AP by inhibiting TXNIP/HIF-1α. Therefore, Drug D, which is extracted from Dioscorea zingiberensis, may inhibit L-arginine-induced AP by meditating GSDMD in the ER by the TXNIP /HIF-1α pathway.
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Chen DQ, Guo Y, Li X, Zhang GQ, Li P. Small molecules as modulators of regulated cell death against ischemia/reperfusion injury. Med Res Rev 2022; 42:2067-2101. [PMID: 35730121 DOI: 10.1002/med.21917] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 11/11/2021] [Accepted: 06/07/2022] [Indexed: 12/13/2022]
Abstract
Ischemia/reperfusion (IR) injury contributes to disability and mortality worldwide. Due to the complicated mechanisms and lack of proper therapeutic targets, few interventions are available that specifically target the pathogenesis of IR injury. Regulated cell death (RCD) of endothelial and parenchymal cells is recognized as the promising intervening target. Recent advances in IR injury suggest that small molecules exhibit beneficial effects on various RCD against IR injury, including apoptosis, necroptosis, autophagy, ferroptosis, pyroptosis, and parthanatos. Here, we describe the mechanisms behind these novel promising therapeutic targets and explain the machinery powering the small molecules. These small molecules exert protection by targeting endothelial or parenchymal cells to alleviate IR injury. Therapies of the ideal combination of small molecules targeting multiple cell types have shown potent synergetic therapeutic effects, laying the foundation for novel strategies to attenuate IR injury.
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Affiliation(s)
- Dan-Qian Chen
- Department of Emergency, China-Japan Friendship Hospital, Beijing, China.,Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Yan Guo
- Department of Internal Medicine, University of New Mexico, Albuquerque, New Mexico, USA
| | - Xin Li
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Guo-Qiang Zhang
- Department of Emergency, China-Japan Friendship Hospital, Beijing, China
| | - Ping Li
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
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Wang YF, Li JW, Wang DP, Jin K, Hui JJ, Xu HY. Anti-Hyperglycemic Agents in the Adjuvant Treatment of Sepsis: Improving Intestinal Barrier Function. Drug Des Devel Ther 2022; 16:1697-1711. [PMID: 35693534 PMCID: PMC9176233 DOI: 10.2147/dddt.s360348] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 05/28/2022] [Indexed: 12/19/2022] Open
Abstract
Intestinal barrier injury and hyperglycemia are common in patients with sepsis. Bacteria translocation and systemic inflammatory response caused by intestinal barrier injury play a significant role in sepsis occurrence and deterioration, while hyperglycemia is linked to adverse outcomes in sepsis. Previous studies have shown that hyperglycemia is an independent risk factor for intestinal barrier injury. Concurrently, increasing evidence has indicated that some anti-hyperglycemic agents not only improve intestinal barrier function but are also beneficial in managing sepsis-induced organ dysfunction. Therefore, we assume that these agents can block or reduce the severity of sepsis by improving intestinal barrier function. Accordingly, we explicated the connection between sepsis, intestinal barrier, and hyperglycemia, overviewed the evidence on improving intestinal barrier function and alleviating sepsis-induced organ dysfunction by anti-hyperglycemic agents (eg, metformin, peroxisome proliferators activated receptor-γ agonists, berberine, and curcumin), and summarized some common characteristics of these agents to provide a new perspective in the adjuvant treatment of sepsis.
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Affiliation(s)
- Yi-Feng Wang
- Department of Critical Care Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, People's Republic of China
| | - Jia-Wei Li
- Department of Critical Care Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, People's Republic of China
| | - Da-Peng Wang
- Department of Critical Care Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, People's Republic of China
| | - Ke Jin
- Department of Critical Care Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, People's Republic of China
| | - Jiao-Jie Hui
- Department of Critical Care Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, People's Republic of China
| | - Hong-Yang Xu
- Department of Critical Care Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, People's Republic of China
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Jin B, Li G, Zhou L, Fan Z. Mechanism Involved in Acute Liver Injury Induced by Intestinal Ischemia-Reperfusion. Front Pharmacol 2022; 13:924695. [PMID: 35694264 PMCID: PMC9185410 DOI: 10.3389/fphar.2022.924695] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 05/05/2022] [Indexed: 12/28/2022] Open
Abstract
Intestinal ischemia-reperfusion (I/R) is a common pathophysiological process, which can occur in many conditions such as acute enteric ischemia, severe burns, small intestinal transplantation, etc,. Ischemia-reperfusion of the intestine is often accompanied by distal organ injury, especially liver injury. This paper outlined the signal pathways and cytokines involved in acute liver injury induced by intestinal I/R: the NF-κB Signaling Pathway, the P66shc Signaling Pathway, the HMGB1 Signaling Pathway, the Nrf2-ARE Signaling Pathway, the AMPK-SIRT-1 Signaling Pathway and other cytokines, providing new ideas for the prevention and treatment of liver injury caused by reperfusion after intestinal I/R.
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Affiliation(s)
- Binghui Jin
- Department of General Surgery, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China.,Department of Central Laboratory, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China
| | - Guangyao Li
- Department of General Surgery, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China.,Department of Central Laboratory, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China
| | - Lin Zhou
- Department of Outpatient, the NO. 967 Hospital of PLA Joint Logistics Support Force, Dalian Medical University, Dalian, China
| | - Zhe Fan
- Department of General Surgery, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China.,Department of Central Laboratory, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China
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125
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Kiran S, Rakib A, Singh UP. The NLRP3 Inflammasome Inhibitor Dapansutrile Attenuates Cyclophosphamide-Induced Interstitial Cystitis. Front Immunol 2022; 13:903834. [PMID: 35720309 PMCID: PMC9205468 DOI: 10.3389/fimmu.2022.903834] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/10/2022] [Indexed: 11/20/2022] Open
Abstract
Interstitial cystitis (IC)/bladder pain syndrome (BPS), hereafter referred together as IC, is a clinical syndrome characterized by sterile inflammation in the bladder. While the etiology and pathophysiology of IC remain unclear, it may involve autoimmunity in light of the significant role played by the NLRP3 inflammasome. However, the effect of NLRP3 inhibitors including dapansutrile (Dap) on IC had not been explored previously. Here, we investigated the effect of Dap in the cyclophosphamide (CYP)-induced experimental mouse model of IC, which results in functional and histological alterations confined to the urinary bladder (UB) comparable to that of clinical IC. CYP-induced mice treated with Dap exhibited improved UB pathology and reductions in inflammation scores and the frequency and the number of mast cells and neutrophils, relative to mice that received CYP alone. Dap- and CYP-treated mice also exhibited infiltration of T cells in the spleen and iliac lymph nodes (ILNs) and a concurrent significant decrease (p<0.01) in CXCR3+CD8+ T cells in the UB, induction of systemic and mucosal dendritic cells (DCs), and reduced levels of systemic proinflammatory cytokines, as compared to CYP alone. We also observed decreases in the expression of several signaling pathways regulators, including interleukin-1 beta (IL-1β), NLRP3, caspase-1, nuclear factor kappa B (NF-κB), and inducible nitric oxide synthase (iNOS) in the UB of CYP- and Dap-treated mice, relative to those receiving CYP alone. Taken together, these results suggest that Dap suppresses IC through the reduction of CXCR3+T cells, mast cells, and neutrophils in the UB and induces DCs as a protective measure. The present study identifies the mechanisms underlying the amelioration of IC by the NLRP3 inhibitor Dap and may provide an avenue for a potential therapeutic agent for the treatment of IC.
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Discovery of 4-((E)-3,5-dimethoxy-2-((E)-2-nitrovinyl)styryl)aniline derivatives as potent and orally active NLRP3 inflammasome inhibitors for colitis. Eur J Med Chem 2022; 236:114357. [DOI: 10.1016/j.ejmech.2022.114357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/26/2022] [Accepted: 04/03/2022] [Indexed: 11/19/2022]
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Wang X, Yin Y, Qian W, Peng C, Shen S, Wang T, Zhao S. Citric acid of ovarian cancer metabolite induces pyroptosis via the caspase-4/TXNIP-NLRP3-GSDMD pathway in ovarian cancer. FASEB J 2022; 36:e22362. [PMID: 35608902 DOI: 10.1096/fj.202101993rr] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/26/2022] [Accepted: 05/10/2022] [Indexed: 11/11/2022]
Abstract
Malignant tumors display profound changes in cellular metabolism, yet how these altered metabolites affect the development and growth of tumors is not fully understood. Here, we used metabolomics to analyze the metabolic profile differences in ovarian cancer and found that citric acid (CA) is the most significantly downregulated metabolite. Recently, CA has been reported to inhibit the growth of a variety of tumor cells, but whether it is involved in pyroptosis of ovarian cancer and its potential molecular mechanisms still remains to be further investigated. Here, we demonstrated that CA inhibits the growth of ovarian cancer cells in a dose-dependent manner. RNA-seq analysis revealed that CA significantly promoted the expression of thioredoxin interacting protein (TXNIP) and caspase-4 (CASP4). Morphologic examination by transmission electron microscopy indicated that CA-treated ovarian cancer cells exhibited typical pyroptosis characteristics. Further mechanistic analyses showed that CA facilitates pyroptosis via the CASP4/TXNIP-NLRP3-Gesdermin-d (GSDMD) pathway in ovarian cancer. This study elucidated that CA induces ovarian cancer cell death through classical and non-classical pyroptosis pathways, which may be beneficial as an ovarian cancer therapy.
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Affiliation(s)
- Xiaogang Wang
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China.,Jiangsu Key Laboratory of Molecular Medicine, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - Yuxin Yin
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China.,Jiangsu Key Laboratory of Molecular Medicine, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - Wei Qian
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China.,Jiangsu Key Laboratory of Molecular Medicine, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - Chen Peng
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China.,Jiangsu Key Laboratory of Molecular Medicine, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - Sunan Shen
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China.,Jiangsu Key Laboratory of Molecular Medicine, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - Tingting Wang
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China.,Jiangsu Key Laboratory of Molecular Medicine, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - Shuli Zhao
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Sun H, Wang J, Bi W, Zhang F, Chi K, Shi L, Yuan T, Ma K, Gao X. Sulforaphane Ameliorates Limb Ischemia/Reperfusion-Induced Muscular Injury in Mice by Inhibiting Pyroptosis and Autophagy via the Nrf2-ARE Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:4653864. [PMID: 35600947 PMCID: PMC9117032 DOI: 10.1155/2022/4653864] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/19/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022]
Abstract
Background Limb ischemia/reperfusion (I/R) injury, as a life-threatening syndrome, is commonly caused by skeletal muscle damage resulting from oxidative stress. Additionally, inflammation-induced pyroptosis and dysregulated autophagy are vital factors contributing to the aggravation of I/R injury. Of note, sulforaphane (SFN) is a natural antioxidant, but whether it worked in limb I/R injury and the possible mechanism behind its protection for skeletal muscle has not been clearly established. Methods Effects of SFN on limb I/R-injured skeletal muscle were assessed by HE staining, followed by assessment of wet weight/dry weight (W/D) ratio of muscle tissues. Next, ELISA and biochemical tests were used to measure the inflammatory cytokine production and oxidative stress. Immunofluorescent analysis and Western blot were adopted to examine the level of pyroptosis- and autophagy-related proteins in vivo. Moreover, protein levels of Nrf2-ARE pathway-related factors were also examined using Western blot. Results SFN treatment could protect skeletal muscle against limb I/R injury, as evidenced by diminished inflammation, pyroptosis, autophagy, and oxidative stress in skeletal muscles of mice. Further mechanistic exploration confirmed that antioxidative protection of SFN was associated with the Nrf2-ARE pathway activation. Conclusions SFN activates the Nrf2-ARE pathway, and thereby inhibits pyroptosis and autophagy and provides a novel therapeutic strategy for the limb I/R-induced muscle tissue damage.
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Affiliation(s)
- Huanhuan Sun
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Jueqiong Wang
- Department of Neurology, Neurological Laboratory of Hebei Province, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Wei Bi
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Feng Zhang
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Kui Chi
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Long Shi
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Tao Yuan
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Kai Ma
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Xiang Gao
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
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Fudosteine attenuates acute lung injury in septic mice by inhibiting pyroptosis via the TXNIP/NLRP3/GSDMD pathway. Eur J Pharmacol 2022; 926:175047. [DOI: 10.1016/j.ejphar.2022.175047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/08/2022] [Accepted: 05/18/2022] [Indexed: 12/29/2022]
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Abstract
Significance: Thioredoxin-interacting protein (Txnip) is an α-arrestin protein that acts as a cancer suppressor. Txnip is simultaneously a critical regulator of energy metabolism. Other alpha-arrestin proteins also play key roles in cell biology and cancer. Recent Advances: Txnip expression is regulated by multilayered mechanisms, including transcriptional regulation, microRNA, messenger RNA (mRNA) stabilization, and protein degradation. The Txnip-based connection between cancer and metabolism has been widely recognized. Meanwhile, new aspects are proposed for the mechanism of action of Txnip, including the regulation of RNA expression and autophagy. Arrestin domain containing 3 (ARRDC3), another α-arrestin protein, regulates endocytosis and signaling, whereas ARRDC1 and ARRDC4 regulate extracellular vesicle formation. Critical Issues: The mechanism of action of Txnip is yet to be elucidated. The regulation of intracellular protein trafficking by arrestin family proteins has opened an emerging field of biology and medical research, which needs to be examined further. Future Directions: A fundamental understanding of the mechanism of action of Txnip and other arrestin family members needs to be explored in the future to combat diseases such as cancer and diabetes. Antioxid. Redox Signal. 36, 1001-1022.
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Affiliation(s)
- Hiroshi Masutani
- Department of Clinical Laboratory Sciences, Tenri Health Care University, Tenri, Japan.,Department of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
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Feng YD, Ye W, Tian W, Meng JR, Zhang M, Sun Y, Zhang HN, Wang SJ, Wu KH, Liu CX, Liu SY, Cao W, Li XQ. Old targets, new strategy: Apigenin-7-O-β-d-(-6″-p-coumaroyl)-glucopyranoside prevents endothelial ferroptosis and alleviates intestinal ischemia-reperfusion injury through HO-1 and MAO-B inhibition. Free Radic Biol Med 2022; 184:74-88. [PMID: 35398494 DOI: 10.1016/j.freeradbiomed.2022.03.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 12/13/2022]
Abstract
With the increasing morbidity and mortality, intestinal ischemia/reperfusion injury (IIRI) has attracted more and more attention, but there is no efficient therapeutics at present. Apigenin-7-O-β-D-(-6″-p-coumaroyl)-glucopyranoside (APG) is a new flavonoid glycoside isolated from Clematis tangutica that has strong antioxidant abilities in previous studies. However, the pharmacodynamic function and mechanism of APG on IIRI remain unknown. This study aimed to investigate the effects of APG on IIRI both in vivo and in vitro and identify the potential molecular mechanism. We found that APG could significantly improve intestinal edema and increase Chiu's score. MST analysis suggested that APG could specifically bind to heme oxygenase 1 (HO-1) and monoamine oxidase b (MAO-B). Simultaneously, APG could attenuate ROS generation and Fe2+ accumulation, maintain mitochondria function thus inhibit ferroptosis with a dose-dependent manner. Moreover, we used siRNA silencing technology to confirm that knocking down both HO-1 and MAO-B had a positive effect on intestine. In addition, we found the HO-1 and MAO-B inhibitors also could reduce endothelial cell loss and protect vascular endothelial after reperfusion. We demonstrate that APG plays a protective role on decreasing activation of HO-1 and MAO-B, attenuating IIRI-induced ROS generation and Fe2+ accumulation, maintaining mitochondria function thus inhibiting ferroptosis.
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Affiliation(s)
- Ying-Da Feng
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Wen Ye
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Wen Tian
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Jing-Ru Meng
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Meng Zhang
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Yang Sun
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Hui-Nan Zhang
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Shou-Jia Wang
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Ke-Han Wu
- Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Department of Pharmacy, School of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chen-Xu Liu
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Shao-Yuan Liu
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China
| | - Wei Cao
- Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Department of Pharmacy, School of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Xiao-Qiang Li
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Xi'an, Shaanxi, 710032, China; Shaanxi Key Laboratory of "Qin Medicine" Research and Development, Xi'an, Shaanxi, 710032, China.
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Gao PC, Chen XW, Chu JH, Li LX, Wang ZY, Fan RF. Antagonistic effect of selenium on mercuric chloride in the central immune organs of chickens: The role of microRNA-183/135b-FOXO1/TXNIP/NLRP3 inflammasome axis. ENVIRONMENTAL TOXICOLOGY 2022; 37:1047-1057. [PMID: 34995020 DOI: 10.1002/tox.23463] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/25/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Mercury (Hg) is a persistent environmental and industrial pollutant that accumulated in the body and induces oxidative stress and inflammation damage. Selenium (Se) has been reported to antagonize immune organs damage caused by heavy metals. Here, we aimed to investigate the prevent effect of Se on mercuric chloride (HgCl2 )-induced thymus and bursa of Fabricius (BF) damage in chickens. The results showed that HgCl2 caused immunosuppression by reducing the relative weight, cortical area of the thymus and BF, and the number of peripheral blood lymphocytes. Meanwhile, HgCl2 induced oxidative stress and imbalance in cytokines expression in the thymus and BF. Further, we found that thioredoxin-interacting protein (TXNIP) and the NOD-like receptor pyrin domain containing 3 (NLRP3) inflammasome mediated HgCl2 -induced oxidative stress and inflammation. Mechanically, the targeting and inhibitory effect of microRNA (miR)-135b/183 on forkhead box O1 (FOXO1) were an upstream event for HgCl2 -activated TXNIP/NLRP3 inflammasome pathway. Most importantly, Se effectively attenuated the aforementioned damage in the thymus and BF caused by HgCl2 and inhibited the TXNIP/NLRP3 inflammasome pathway by reversing the expression of FOXO1 through inhibiting miR-135b/183. In conclusion, the miR-135b/183-FOXO1/TXNIP/NLRP3 inflammasome axis might be a novel mechanism for Se to antagonize HgCl2 -induced oxidative stress and inflammation in the central immune organs of chickens.
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Affiliation(s)
- Pei-Chao Gao
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
| | - Xue-Wei Chen
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
| | - Jia-Hong Chu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
| | - Lan-Xin Li
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
| | - Rui-Feng Fan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, China
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Wang A, Gong Y, Pei Z, Jiang L, Xia L, Wu Y. Paeoniflorin ameliorates diabetic liver injury by targeting the TXNIP-mediated NLRP3 inflammasome in db/db mice. Int Immunopharmacol 2022; 109:108792. [PMID: 35483236 DOI: 10.1016/j.intimp.2022.108792] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Diabetic liver injury (DLI) is a complication that damages the quality of life in diabetes patients. While paeoniflorin (PF) exhibits anti-inflammatory and antioxidant effects, no data are available on whether PF protects against DLI. Therefore, we evaluated the effects of PF on hepatic steatosis and inflammation in db/db mice, a type 2 diabetes model. METHODS In this study, we investigated the effects of PF on DLI using diabetic mice model (db/db mice) and high glucose (HG)-induced mouse AML12 cells. The effects of PF on TXNIP-mediated NLRP3 inflammasome in vivo and in vitro were evaluated by Western bloting, RT-PCR, immunohistochemistry (IHC) and immunofluorescence (IF) analysis. Through molecular docking experiments and cellular thermal shift assay (CETSA), we studied the binding ability of PF to thioredoxin-interacting protein (TXNIP). We use TXNIP siRNA to knock down TXNIP in AML12 cells. RESULTS We found that PF reversed abnormal liver function and liver steatosis in db/db mice, while blocking the release of inflammatory cytokines. These effects are associated with PF inhibition of the TXNIP/NLRP3 signaling pathway. Molecular docking experiments and CETSA also demonstrated that TXNIP is a likely target of PF. In HG-treated AML12 cells, TXNIP knockdown eliminated the beneficial effects of PF. CONCLUSION Using a combination of animal and in vitro experiments, this study demonstrated for the first time that PF ameliorates DLI through targeting the TXNIP-activated NLRP3 inflammasome. Thus, PF may be a potential therapeutic agent against DLI.
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Affiliation(s)
- Anli Wang
- Department of Infectious Disease, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, PR China
| | - Yingjie Gong
- Department of Infectious Disease, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, PR China
| | - Zhixin Pei
- Department of Infectious Disease, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, PR China
| | - Ling Jiang
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, PR China
| | - Lingling Xia
- Department of Infectious Disease, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, PR China.
| | - Yonggui Wu
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, PR China; Center for Scientific Research of Anhui Medical University, Hefei, Anhui 230022, PR China.
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Kang JY, Xu MM, Sun Y, Ding ZX, Wei YY, Zhang DW, Wang YG, Shen JL, Wu HM, Fei GH. Melatonin attenuates LPS-induced pyroptosis in acute lung injury by inhibiting NLRP3-GSDMD pathway via activating Nrf2/HO-1 signaling axis. Int Immunopharmacol 2022; 109:108782. [PMID: 35468366 DOI: 10.1016/j.intimp.2022.108782] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/05/2022] [Accepted: 04/14/2022] [Indexed: 01/06/2023]
Abstract
Acute lung injury (ALI)/ acute respiratory distress syndrome (ARDS) is featured by intensive inflammatory responses and oxidative stress, which lead to cytokine storms and pyroptosis. Here, we aimed to investigate whether melatonin was capable of alleviating LPS-induced ALI via activating the nuclear factor erythroid 2-related factor 2/heme oxygenase 1 (Nrf2/HO-1) signaling axis and inhibiting pyroptosis. Mice were injected with melatonin (30 mg/kg) intraperitoneally for consecutive five days before LPS instillation intratracheally, and human alveolar epithelial cell (AECⅡ) A549 cell lines and murine macrophages Raw264.7 cell lines were pretreated with melatonin (400 μM) before LPS (10 μg/ml) stimulation. The result demonstrated that LPS induced obvious lung injury characterized by alveolar damage, neutrophil infiltration and lung edema as well as the reduction of the survival rate of mice, which were totally reversed by melatonin pretreatment. Mechanistically, melatonin pretreatment activated nuclear factor erythroid2-related factor (Nrf) 2 signaling, subsequently, drove antioxidant pathways including significant increases in the expression of Nrf2, HO-1, NQO1, Mn-SOD and Catalase in vivo and in vitro. Simultaneously, melatonin inhibited ROS and MDA overproduction, iNOS expression as well as TNF-α and IL-1β expression and release. Furthermore, melatonin inhibited LPS-induced pyroptosis by reversing the overexpression of NLRP3, Caspase-1, IL-1β, IL-18 and GSDMD-N, as well as LDH release and TUNEL-positive cells in A549 cells and Raw264.7 cells. Overall, the current study suggests that melatonin exerts protective roles on LPS-induced ALI and pyroptosis by inhibiting NLRP3-GSDMD pathway via activating Nrf2/HO-1 signaling axis.
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Affiliation(s)
- Jia-Ying Kang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China
| | - Meng-Meng Xu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China
| | - Ying Sun
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China
| | - Zhen-Xing Ding
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China; Emergency Department, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China
| | - Yuan-Yuan Wei
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China
| | - Da-Wei Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China
| | - Yue-Guo Wang
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China; Department of Emergency Critical Care Medicine, First Affiliated Hospital of Anhui Provincial Hospital, Division of Life Science and Medicine, University of Science and Technology of China, 230001 Hefei, Anhui, China
| | - Ji-Long Shen
- Provincial Laboratory of Microbiology and Parasitology of Anhui Medical University, 230022 Hefei, Anhui, China
| | - Hui-Mei Wu
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China; Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care, First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, China
| | - Guang-He Fei
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China.
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Yin Y, Tang L, Liu K, Ding X, Wang D, Chen L. Bone marrow mesenchymal stem cells may attenuate lipopolysaccharide-induced liver injury via inhibiting the NLRP3 inflammasome and hepatocyte pyroptosis. Curr Stem Cell Res Ther 2022; 17:361-369. [PMID: 35392791 DOI: 10.2174/1574888x17666220407103441] [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: 09/02/2021] [Revised: 11/05/2021] [Accepted: 01/12/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND The transplantation of bone marrow mesenchymal cells (BMSCs) has been shown to be an effective means of treating sepsis-related organ damage. Pytoptotic cell death, in turn, has recently been identified as a key driver of sepsis-related damage. At present, there are few studies on the effect of BMSC transplantation on pytoptotic cell death. OBJECTIVE We explored the ability of BMSCs to attenuate hepatic damage in a pyroptosis-related manner in a rat model of lipopolysaccharide (LPS)-induced liver injury. METHODS Following injury modeling and BMSC transplantation, we assessed the expression of the NLR family, pyrin domain containing 3 (NLRP3) inflammasome and key downstream pyroptosis-related signaling molecules. RESULTS It was found that BMSC transplantation was sufficient to significantly improve rat survival after LPS injection. Significantly reduced expression of the pyroptosis-related proteins NLRP3, caspase-1, IL-1β, and IL-18 in rats that had undergone BMSC transplantation compared to control animals. Notably, this activity was superior to single-agent administration of the NLRP3 inhibitor MCC950. CONCLUSION Our data suggest that BMSC transplantation may alleviate LPS-induced hepatic damage by suppressing the activation of the NLRP3 inflammasome and the induction of pyroptotic cell death.
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Affiliation(s)
- Yunyu Yin
- Department of Intensive Care Unit, The Affiliated hospital of North Sichuan Medical College, Nanchong,China
| | - Lu Tang
- Department of Intensive Care Unit, The Affiliated hospital of North Sichuan Medical College, Nanchong,China
| | - Kui Liu
- Department of Intensive Care Unit, The Affiliated hospital of North Sichuan Medical College, Nanchong,China
| | - Xuefeng Ding
- Department of Intensive Care Unit, The Affiliated hospital of North Sichuan Medical College, Nanchong,China
| | - Daqing Wang
- Department of Intensive Care Unit, The Affiliated hospital of North Sichuan Medical College, Nanchong,China
| | - Li Chen
- Department of Intensive Care Unit, The Affiliated hospital of North Sichuan Medical College, Nanchong,China
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Lyu H, Ni H, Huang J, Yu G, Zhang Z, Zhang Q. VX-765 prevents intestinal ischemia-reperfusion injury by inhibiting NLRP3 inflammasome. Tissue Cell 2022; 75:101718. [PMID: 35131633 DOI: 10.1016/j.tice.2021.101718] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Intestinal ischemia-reperfusion injury (IIRI) is a common clinical event that can cause serious consequences. The study aimed to investigated the effect of VX-765 in IIRI and its mechanism. METHODS The hypoxia-reoxygenation (H/R) cell model and IIRI mouse model were generated to examine the in vitro and in vivo effects of VX-765 on IIRI. IIRI was evaluated by histological assessment. ELISA was performed to determine the levels of IL-6, TNF-α, IL-1β, caspase-1, and GSDMD in intestinal tissues as well as the levels of MDA, SOD, CAT, caspase-1, and GSDMD in Caco-2 cells. Relative protein levels of NLRP3, ASC, IL-18, IL-1β, cleaved Caspase1, and GSDMD-N were analyzed by Western blotting. CCK-8 Assay was conducted to determine the optimal concentration of VX-765 for the in vitro studies. Flow cytometry, fluorescence microscopy and real-time PCR (RT-PCR) were used to assess ROS levels and the mRNA levels of IL-18 and IL-1β, respectively. Immunofluorescence staining was performed to examine the subcellular localization of P65 and NLRP3. RESULTS VX-765 reduced IIRI-induced oxidative stress and inflammatory response both in vivo and in vitro, while it decreased the levels of TNF-α, IL-6, IL-1β as well as the modified Park/Chiu scores. The optimal concentration of VX-765 for the in vitro studies was 10 μM. Moreover, VX-765 inhibited the nuclear translocation of P65, reduced oxidative stress and down-regulated the activation of NLRP3 inflammasome. CONCLUSION VX-765 prevents IIRI presumably by inhibiting the activation of NLRP3 inflammasome.
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Affiliation(s)
- Heping Lyu
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Haizhen Ni
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Jingyong Huang
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Guanfeng Yu
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Zhongjing Zhang
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Qiyu Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China.
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Oral H, Türkyılmaz Z, Karabulut R, Kaya C, Dayanır D, Karakaya C, Sonmez K. Protective Effects of Hydrogen-Rich Saline on Experimental Intestinal Volvulus in Rats. J INVEST SURG 2022; 35:1427-1433. [PMID: 35331073 DOI: 10.1080/08941939.2022.2056273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Intestinal volvulus can cause morbidity and mortality. Surgical reduction, on the other hand, could result in ischemia-reperfusion (I/R) injury. Hydrogen rich saline solution (HRSS neutralizes free radicals in the body. This study aimed to investigate the effects of HRSS in I/R injury in experimental intestinal volvulus in rats. METHODS Thirty rats were randomly allocated into 5 groups. All procedures were done under general anesthesia and sterile conditions in each animal. Five ml/kg of saline and HRSS were administered intraperitoneally (ip) in Sham (Group 1) and HRSS (Group 2) groups, respectively. Groups 3, 4, and 5 constituted the study groups in which volvulus was created in a 5-cm- long ileal segment 2 cm proximal to the ileocecal valve. After 2 hours the volvuli were reduced and following 2 hours of reperfusion, these segments were removed. In volvulus-I/R group (Group 3) no additional procedure was done. HRSS was administered shortly before reperfusion (reduction of the volvulus) in Treatment I (Group 4) and 1 h before experimental volvulus in Treatment II (Group 5) groups. Blood and intestinal tissue samples were obtained from all rats at the 4th hour. Both tissue and blood total oxidant (TOS) and antioxidant status (TAS) levels were determined and tissue histomorphologies were studied. Oxidative stress indices (TOS ÷ TAS) (OSI) were calculated. RESULTS Tissue TOS and OSI levels and histomorphological injury scores were statistically lower in treatment groups than I/R group, whereas blood TOS and OSI levels were similar between the groups. CONCLUSIONS This study provides biochemical and histomorphological evidence that HRSS prevents intestinal damage in I/R injury caused by volvulus.
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Affiliation(s)
- Hayrunnisa Oral
- Departments of Pediatric Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Zafer Türkyılmaz
- Departments of Pediatric Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Ramazan Karabulut
- Departments of Pediatric Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Cem Kaya
- Departments of Pediatric Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Duygu Dayanır
- Histology and Embryology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Cengiz Karakaya
- Medical Biochemistry, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Kaan Sonmez
- Departments of Pediatric Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
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Huang J, Chen P, Xiang Y, Liang Q, Wu T, Liu J, Zeng Y, Zeng H, Liang X, Zhou C. Gut microbiota dysbiosis-derived macrophage pyroptosis causes polycystic ovary syndrome via steroidogenesis disturbance and apoptosis of granulosa cells. Int Immunopharmacol 2022; 107:108717. [PMID: 35334358 DOI: 10.1016/j.intimp.2022.108717] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/07/2022] [Accepted: 03/16/2022] [Indexed: 12/22/2022]
Abstract
Gut microbiota dysbiosis is critical in the etiology of polycystic ovary syndrome (PCOS). However, the mechanisms of gut microbiota in PCOS pathogenesis have not been fully elucidated. We aimed to explore the role of gut microbiota-derived macrophage pyroptosis in PCOS. This study conducted dehydroepiandrosterone (DHEA) induced PCOS mice model, 16S rDNA sequencing, western blot, genetic knocking out, transcriptome and translatome profiling, et al. to evaluate the underlying mechanisms. 16S rDNA sequencing showed reduced gut Akkermansia and elevated gram-negative bacteria (Desulfovibrio and Burkholderia) abundances in DHEA induced PCOS mice, which was accompanied by increased serum lipopolysaccharide (LPS). LPS could induce macrophage pyroptosis in mice ovaries, also activated in PCOS. Gasdermin D (GSDMD) is the final executor of macrophage pyroptosis. We demonstrated that Gsdmd knockout in mice could dramatically ameliorate PCOS. Mechanistically, transcriptome and translatome profiling revealed that macrophage pyroptosis disrupted estrogen production and promoted apoptosis of granulosa cells. Interferon (IFN)-γ, which was elevated in PCOS mice serum and ovaries, enhanced macrophage pyroptosis and exacerbated its effect on estrogen receptor in granulosa cells. Inspiringly, we identified that disulfiram and metformin could augment gut Akkermansia abundance, reduce serum IFN-γ level, inhibit macrophage pyroptosis in ovaries, therefore ameliorating PCOS. Collectively, this study emphasizes that macrophage pyroptosis, which was induced by gut microbiota dysbiosis and enhanced by IFN-γ, plays a key role in PCOS pathogenesis through estrogen synthesis dysfunction and apoptosis of granulosa cells. Disulfiram and metformin, which enhanced gut Akkermansia abundance and suppressed macrophage pyroptosis, may be considered as potential therapeutic strategies for PCOS.
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Affiliation(s)
- Jiana Huang
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Peigen Chen
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Yuting Xiang
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Qiqi Liang
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Taibao Wu
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Jiawen Liu
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Yanyan Zeng
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Haitao Zeng
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China.
| | - Xiaoyan Liang
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China.
| | - Chuanchuan Zhou
- Reproductive Medicine Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China.
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Jin L, Jin F, Guo S, Liu W, Wei B, Fan H, Li G, Zhang X, Su S, Li R, Fang D, Duan C, Li X. Metformin Inhibits NLR Family Pyrin Domain Containing 3 (NLRP)-Relevant Neuroinflammation via an Adenosine-5′-Monophosphate-Activated Protein Kinase (AMPK)-Dependent Pathway to Alleviate Early Brain Injury After Subarachnoid Hemorrhage in Mice. Front Pharmacol 2022; 13:796616. [PMID: 35370693 PMCID: PMC8969021 DOI: 10.3389/fphar.2022.796616] [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: 10/22/2021] [Accepted: 02/09/2022] [Indexed: 12/23/2022] Open
Abstract
Neuroinflammation plays a key role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). Previous studies have shown that metformin exerts anti-inflammatory effects and promotes functional recovery in various central nervous system diseases. We designed this study to investigate the effects of metformin on EBI after SAH. Our results indicate that the use of metformin alleviates the brain edema, behavioral disorders, cell apoptosis, and neuronal injury caused by SAH. The SAH-induced NLRP3-associated inflammatory response and the activation of microglia are also suppressed by metformin. However, we found that the blockade of AMPK with compound C weakened the neuroprotective effects of metformin on EBI. Collectively, our findings indicate that metformin exerts its neuroprotective effects by inhibiting neuroinflammation in an AMPK-dependent manner, by modulating the production of NLRP3-associated proinflammatory factors and the activation of microglia.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Xifeng Li
- *Correspondence: Chuanzhi Duan, ; Xifeng Li,
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Wei Y, Yang L, Pandeya A, Cui J, Zhang Y, Li Z. Pyroptosis-Induced Inflammation and Tissue Damage. J Mol Biol 2022; 434:167301. [PMID: 34653436 PMCID: PMC8844146 DOI: 10.1016/j.jmb.2021.167301] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/23/2021] [Accepted: 10/05/2021] [Indexed: 02/07/2023]
Abstract
Programmed cell deaths are pathways involving cells playing an active role in their own destruction. Depending on the signaling system of the process, programmed cell death can be divided into two categories, pro-inflammatory and non-inflammatory. Pyroptosis is a pro-inflammatory form of programmed cell death. Upon cell death, a plethora of cytokines are released and trigger a cascade of responses from the neighboring cells. The pyroptosis process is a double-edged sword, could be both beneficial and detrimental in various inflammatory disorders and disease conditions. A physiological outcome of these responses is tissue damage, and sometimes death of the host. In this review, we focus on the inflammatory response triggered by pyroptosis, and resulting tissue damage in selected organs.
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Affiliation(s)
- Yinan Wei
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA.
| | - Ling Yang
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA
| | - Ankit Pandeya
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA
| | - Jian Cui
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA
| | - Yan Zhang
- Saha Cardiovascular Research Center, College of Medicine, University of Kentucky, Lexington, KY, USA.,Department of Oncology, the First Affiliated Hospital of Soochow University, Suzhou,China
| | - Zhenyu Li
- Saha Cardiovascular Research Center, College of Medicine, University of Kentucky, Lexington, KY, USA.
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Li Z, Chen X, Tao J, Shi A, Zhang J, Yu P. Exosomes Regulate NLRP3 Inflammasome in Diseases. Front Cell Dev Biol 2022; 9:802509. [PMID: 35047512 PMCID: PMC8762245 DOI: 10.3389/fcell.2021.802509] [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: 10/26/2021] [Accepted: 12/03/2021] [Indexed: 12/11/2022] Open
Abstract
Emerging evidence has suggested the unique and critical role of exosomes as signal molecules vector in various diseases. Numerous researchers have been trying to identify how these exosomes function in immune progression, as this could promote their use as biomarkers for the disease process and potential promising diagnostic tools. NOD-like receptor (NLR) family, pyrin domain containing 3 (NLRP3), a tripartite protein, contains three functional domains a central nucleotide-binding and oligomerization domain (NACHT), an N-terminal pyrin domain (PYD), and a leucine-rich repeat domain (LRR). Of note, existing studies have identified exosome as a novel mediator of the NLRP3 inflammasome, which is critical in diseases progression. However, the actual mechanisms and clinical treatment related to exosomes and NLRP3 are still not fully understood. Herein, we presented an up-to-date review of exosomes and NLRP3 in diseases, outlining what is known about the role of exosomes in the activation of NLRP3 inflammasome and also highlighting areas of this topic that warrant further study.
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Affiliation(s)
- Zhangwang Li
- The Second Affiliated Hospital of Nanchang University, The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Xinyue Chen
- The Second Affiliated Hospital of Nanchang University, The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Junjie Tao
- The Second Affiliated Hospital of Nanchang University, The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Ao Shi
- School of Medicine, University of Nicosia, Nicosia, Cyprus.,School of Medicine, St. George University of London, London, United Kingdom
| | - Jing Zhang
- The Second Affiliated Hospital of Nanchang University, The Second Clinical Medical College of Nanchang University, Nanchang, China.,Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Peng Yu
- The Second Affiliated Hospital of Nanchang University, The Second Clinical Medical College of Nanchang University, Nanchang, China.,Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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VX765, a Specific Caspase-1 Inhibitor, Alleviates Lung Ischemia Reperfusion Injury by Suppressing Endothelial Pyroptosis and Barrier Dysfunction. BIOMED RESEARCH INTERNATIONAL 2022; 2021:4525988. [PMID: 34977239 PMCID: PMC8716216 DOI: 10.1155/2021/4525988] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 12/04/2021] [Indexed: 12/12/2022]
Abstract
Lung ischemia reperfusion injury (LIRI) is a complex pathophysiological process with high morbidity and mortality. An important pathophysiological characteristic of LIRI is endothelial barrier dysfunction, although the mechanism involved in this process remains unclear. VX765, a specific caspase-1 inhibitor, has been shown to have a protective effect against several diseases including sepsis, atherosclerosis, and glial inflammatory disease. The objective of this study was to determine whether VX765 had a protective effect in LIRI. The results showed that lung ischemia/reperfusion (I/R) and oxygen/glucose deprivation and reoxygenation (OGD/R) induced endothelial pyroptosis and barrier dysfunction characterized by an inflammatory response. Treatment with VX765 successfully alleviated I/R- and OGD/R-induced endothelial pyroptosis and barrier dysfunction by inhibiting caspase-1 in vivo and in vitro. In conclusion, these findings showed that VX765 provided effective protection against lung I/R-induced endothelial pyroptosis and barrier dysfunction.
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Guo Y, Yang JH, He Y, Zhou HF, Wang Y, Ding ZS, Jin B, Wan HT. Protocatechuic aldehyde prevents ischemic injury by attenuating brain microvascular endothelial cell pyroptosis via lncRNA Xist. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 94:153849. [PMID: 34775360 DOI: 10.1016/j.phymed.2021.153849] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/27/2021] [Accepted: 10/31/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Pyroptosis is a pro-inflammatory cell death characterized by the formation of inflammasomes. Abnormal inflammation in brain microvascular endothelial cells (BMECs) has been correlated with ischemic stroke. Protocatechuic aldehyde (PCA) is a hydrophilic phenolic acid derived from the traditional Chinese herb Salvia miltiorrhiza with significant anti-inflammatory effects. However, the mechanism of PCA on BMEC pyroptosis under ischemic injury has been largely unexplored. PURPOSE We aimed to study the effects and mechanism of PCA on BMEC pyroptosis under ischemic injury. METHODS Sprague-Dawley (SD) rats were injected through the tail vein with different concentrations of PCA after transient middle cerebral artery occlusion (MCAO) was performed. The protective effects of PCA in SD rats were examined via neurological scores, infarct volume evaluation, and anti-pyroptosis effects using immunofluorescence staining and western blot. Rat BMECs (rBMECs) were treated with different concentrations of PCA after oxygen and glucose deprivation (OGD). The ability of PCA to protect rBMECs was examined via cell viability, anti-oxidative activity, and anti-pyroptosis effects as determined by qRT-PCR and western blot. Additionally, the role of lncRNA Xist in anti-pyroptosis responses of PCA-treated rBMECs was validated with lncRNA Xist siRNA. RESULTS We found that treatment with MCAO and OGD increased the expression of NOD-like receptor protein 3, gasdermin D, Caspase-1, interleukin-1β, and NIMA-related kinase 7, which was reversed by treatment with PCA or MCC950 (a pyroptosis inhibitor). In addition, PCA reduced the cerebral infarct volume in MCAO rats and promoted cell survival and proliferation in OGD/reperfusion-treated rBMECs. PCA enhanced the antioxidant activity and mitochondrial membrane potential in rBMECs. PCA also enhanced lncRNA Xist expression, and when the expression of lncRNA Xist was silenced, PCA could not alleviate pyroptosis well in rBMECs. CONCLUSION Protocatechuic aldehyde prevents ischemic injury by attenuating rBMEC pyroptosis via lncRNA Xist.
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Affiliation(s)
- Yan Guo
- College of Basic Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Jie-Hong Yang
- College of Basic Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China.
| | - Yu He
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Hui-Fen Zhou
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Yu Wang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China.
| | - Zhi-Shan Ding
- College of Medical Technology, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Bo Jin
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China.
| | - Hai-Tong Wan
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China.
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OUP accepted manuscript. Toxicol Res (Camb) 2022; 11:437-450. [PMID: 35782648 PMCID: PMC9244226 DOI: 10.1093/toxres/tfac020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/21/2022] [Accepted: 03/28/2022] [Indexed: 11/12/2022] Open
Abstract
Background Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are clinically severe respiratory disorders, and there are currently no Food and Drug Administration-approved drug therapies. It is of great interest to us that dimethyl fumarate (DMF) has been shown to have anti-inflammatory effects. The aim of this study was to investigate whether DMF could alleviate lipopolysaccharide(LPS)-induced ALI, and to explore its mechanism of action. Materials and methods We established a mice model of ALI with intratracheal instillation of LPS and intraperitoneal injection of DMF to treat ALI. The pathological damage and inflammatory response of lung tissues were observed by hematoxylin and eosin (H&E) staining, ELISA assay and western blot. ATP plus LPS was used for the establishment of ALI in vitro model, the therapeutic effects of DMF was explored by ELISA assay, RT-qPCR, western blot, and flow cytometry, and the therapeutic mechanisms of DMF was explored by administration of Brusatol (BT), a nuclear factor erythroid-2-related factor 2 (Nrf2) inhibitor. Results We found that intraperitoneal injection of DMF significantly reduced LPS-induced the pulmonary injury, pulmonary edema, and infiltration of inflammatory mediators. In LPS-induced ALI, NLRP3 inflammasome-mediated pyroptosis was markedly activated, followed by cleavage of caspase-1 and GSDMD. DMF inhibited the activation of the NLRP3 inflammasome and pyroptosis in both lung of ALI mice and ATP plus LPS-induced BEAS-2B cells. Mechanistically, DMF enhanced expressions of Nrf2, leading to inactivation of NLRP3 inflammasome and reduced pyroptosis in vivo and in vitro. Conversely, BT reduced the inhibitory effects of DMF on NLRP3 inflammasome and pyroptosis, and consequently blocked the improvement roles of DMF on ALI. Conclusions DMF could improve LPS-induced ALI via inhibiting NLRP3 inflammasome and pyroptosis, and that these effects were mediated by triggering Nrf2 expression, suggesting a therapeutic potential of DMF as an anti-inflammatory agent for ALI/ARDS treatment.
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Zhang Y, Yan M, Shan W, Zhang T, Shen Y, Zhu R, Fang J, Mao H. Bisphenol A induces pyroptotic cell death via ROS/NLRP3/Caspase-1 pathway in osteocytes MLO-Y4. Food Chem Toxicol 2021; 159:112772. [PMID: 34929351 DOI: 10.1016/j.fct.2021.112772] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/27/2021] [Accepted: 12/15/2021] [Indexed: 02/07/2023]
Abstract
Bisphenol A (BPA), a ubiquitous endocrine-disrupting chemical, is commonly used as a plasticizer to manufacture various food packaging materials. Evidence has demonstrated that BPA disturbed bone health. However, few studies focused on the effect of BPA on osteocytes, making up over 95% of all the bone cells. Here, we reported that BPA inhibited the cell viability of MLO-Y4 cells, and increased apoptosis in a dose-dependent manner. Furthermore, BPA up-regulated protein expressions of speck-like protein containing CARD (ASC), NLRP3, cleaved caspase-1 (Casp-1 p20) and cleaved gasdermin D (GSDMD-N), and increased the ratios of interleukin (IL)-1β/pro-IL-1β and IL-18/pro-IL-18 in MLO-Y4 cells. BPA enhanced levels of lactate dehydrogenase (LDH), IL-1β and IL-18 in culture supernatants. This pyroptotic death and the NLPR3 inflammasome activation were reversed by the caspase-1 inhibitor VX765 or the NLRP3 inflammasome inhibitor MCC950. Furthermore, BPA stimulated the production of intracellular reactive oxygen species (ROS), mitochondrial ROS (mtROS), elevated malondialdehyde (MDA) level and decreased superoxide dismutase (SOD) activity, which led to oxidative damage in MLO-Y4 cells. The ROS scavenger N-acetylcysteine (NAC) or the mitochondrial antioxidant Mito-TEMPO inhibited the NLPR3 inflammasome activation and pyroptotic death induced by BPA. Collectively, our data suggest that BPA causes pyroptotic death of osteocytes via ROS/NLRP3/Caspase-1 pathway.
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Affiliation(s)
- Yun Zhang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, China.
| | - Ming Yan
- School of Automation, HangZhou Dianzi University, Baiyang Street 2 Avenue 1158, Hangzhou, 310018, China.
| | - Weiyan Shan
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, China
| | - Tao Zhang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, China
| | - Yunchen Shen
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, China
| | - Ruirong Zhu
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, China
| | - Jian Fang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, China
| | - Hongjiao Mao
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, China
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[Dexmedetomidine preconditioning alleviates acute lung injury induced by intestinal ischemia-reperfusion in rats by inhibiting NLRP3 inflammasome activation]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:1857-1863. [PMID: 35012919 PMCID: PMC8752431 DOI: 10.12122/j.issn.1673-4254.2021.12.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To investigate the protective effect of dexmedetomidine (Dex) against acute lung injury induced by intestinal ischemia-reperfusion (II/R) in rats and its effect on NLRP3 inflammasome activity. METHODS Thirty-two normal male SD rats were randomly divided into 4 groups (n=8): the sham operation group, where the superior mesenteric artery (SMA) was exposed only; II/R group, where the SMA was occluded for 1 h followed by reperfusion for 2 h; Dex+II/R group, where the rats were subjected to II/R and received intraperitoneal injection of Dex before reperfusion; and Dex group, where the rats received Dex pretreatment and sham operation. The rats in sham operation group and II/R group received intraperitoneal injection of normal saline. The wet/dry weight ratio (W/D) and myeloperoxidase (MPO) activity in the lung tissues were measured, and HE staining was used to evaluate lung pathologies and determine lung injury score of the rats. The levels of inflammatory cytokines (TNF-α, IL-18, and IL-1β) in the lung tissue were detected using ELISA, and the expressions of NLRP3, ASC, caspase-1 and p-AMPK proteins were determined with Western blotting. RESULTS Compared with the sham-operated rats, the rats with II/R injury showed obvious lung pathologies and significantly increased W/D value, MPO activity and expression of TNF-α, IL-18 and IL-1β in the lung tissue (P < 0.05) with also significantly increased expressions of NLRP3, ASC, and caspase-1 proteins (P < 0.05) but obviously lowered expression of p-AMPK protein (P < 0.05) in the lung tissues. Compared with those in II/R group, the rats in Dex+II/R group showed milder lung pathologies, significantly reduced W/D value, MPO activity and expressions of TNF-α, IL-18 and IL-1β in the lung tissue (P < 0.05), and significant lower expressions of NLRP3, ASC, and caspase-1 (P < 0.05) but higher expression of p-AMPK protein (P < 0.05). CONCLUSION Dex treatment reduces II/R-induced inflammatory response by inhibiting the activation of NLRP3 inflammasomes, thereby improving acute lung injury caused by II/R in rats.
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Kip AM, Valverde JM, Altelaar M, Heeren RMA, Hundscheid IHR, Dejong CHC, Olde Damink SWM, Balluff B, Lenaerts K. Combined Quantitative (Phospho)proteomics and Mass Spectrometry Imaging Reveal Temporal and Spatial Protein Changes in Human Intestinal Ischemia-Reperfusion. J Proteome Res 2021; 21:49-66. [PMID: 34874173 PMCID: PMC8750167 DOI: 10.1021/acs.jproteome.1c00447] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
![]()
Intestinal ischemia–reperfusion
(IR) injury is a severe
clinical condition, and unraveling its pathophysiology is crucial
to improve therapeutic strategies and reduce the high morbidity and
mortality rates. Here, we studied the dynamic proteome and phosphoproteome
in the human intestine during ischemia and reperfusion, using liquid
chromatography-tandem mass spectrometry (LC-MS/MS) analysis to gain
quantitative information of thousands of proteins and phosphorylation
sites, as well as mass spectrometry imaging (MSI) to obtain spatial
information. We identified a significant decrease in abundance of
proteins related to intestinal absorption, microvillus, and cell junction,
whereas proteins involved in innate immunity, in particular the complement
cascade, and extracellular matrix organization increased in abundance
after IR. Differentially phosphorylated proteins were involved in
RNA splicing events and cytoskeletal and cell junction organization.
In addition, our analysis points to mitogen-activated protein kinase
(MAPK) and cyclin-dependent kinase (CDK) families to be active kinases
during IR. Finally, matrix-assisted laser desorption ionization time-of-flight
(MALDI-TOF) MSI presented peptide alterations in abundance and distribution,
which resulted, in combination with Fourier-transform ion cyclotron
resonance (FTICR) MSI and LC-MS/MS, in the annotation of proteins
related to RNA splicing, the complement cascade, and extracellular
matrix organization. This study expanded our understanding of the
molecular changes that occur during IR in the human intestine and
highlights the value of the complementary use of different MS-based
methodologies.
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Affiliation(s)
- Anna M Kip
- Department of Surgery, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Juan Manuel Valverde
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Padualaan 8, Utrecht 3584 CH, The Netherlands
| | - Maarten Altelaar
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Padualaan 8, Utrecht 3584 CH, The Netherlands
| | - Ron M A Heeren
- Maastricht Multimodal Molecular Imaging Institute (M4i), Maastricht University, 6200 MD Maastricht, The Netherlands
| | - Inca H R Hundscheid
- Department of Surgery, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Cornelis H C Dejong
- Department of Surgery, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands.,Department of General, Visceral- and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Steven W M Olde Damink
- Department of Surgery, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands.,Department of General, Visceral- and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Benjamin Balluff
- Maastricht Multimodal Molecular Imaging Institute (M4i), Maastricht University, 6200 MD Maastricht, The Netherlands
| | - Kaatje Lenaerts
- Department of Surgery, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
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Luteolin Improves Cyclophosphamide-Induced Cystitis through TXNIP/NLRP3 and NF- κB Pathways. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:1718709. [PMID: 34804174 PMCID: PMC8601811 DOI: 10.1155/2021/1718709] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/05/2021] [Accepted: 10/18/2021] [Indexed: 12/16/2022]
Abstract
Hemorrhagic cystitis is an important complication of cyclophosphamide chemotherapy, and current therapies for the disease are limited. The natural flavonoid luteolin (LUT) has significant anti-inflammatory and antioxidant properties, but its protective effect on cyclophosphamide (CYP)-induced bladder toxicity has yet to be evaluated. This study aims to explore the protective effect of LUT on CYP-induced acute cystitis in rats. Female Sprague-Dawley rats were randomly assigned to the control (CON) group, CON + LUT group, CYP group, and CYP + LUT group. A single intraperitoneal injection of CYP was administered to establish an acute hemorrhagic cystitis model. HE staining was performed to detect the degree of bladder tissue damage, and TUNEL staining was performed to count apoptotic cells. Oxidative stress indicators were measured using commercial kits, and bladder surgery was performed to assess urinary function. The levels of inflammatory cytokines, apoptosis-related indicators, TXNIP/NLRP3 pathway, and NF-κB pathway were detected by western blot. We found that LUT treatment reduced bladder bleeding, congestion, and edema caused by CYP. Compared with the CYP + LUT group, the level of apoptosis was more highly expressed in the CYP group. We also found that caspase-3, caspase-8, and Bax were significantly upregulated and Bcl-2 was downregulated after LUT treatment. In addition, LUT inhibited the activation of NF-κB signal pathway in the rat bladder tissue after CYP exposure. LUT treatment can also reduce the NLRP3 inflammasome (NLRP3, ASC, and caspase-1) and TXNIP in the bladder. Finally, LUT can reduce the increase in the urination frequency and maximum urination pressure caused by cystitis. These results indicate that LUT displays effective anti-inflammatory, antioxidant, and antiapoptotic properties in CYP-induced acute hemorrhagic cystitis rats by inhibiting the TXNIP/NLRP3 and NF-κB pathways. LUT may be a potent therapeutic agent for the prevention and treatment of hemorrhagic cystitis.
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Metformin Corrects Glucose Metabolism Reprogramming and NLRP3 Inflammasome-Induced Pyroptosis via Inhibiting the TLR4/NF- κB/PFKFB3 Signaling in Trophoblasts: Implication for a Potential Therapy of Preeclampsia. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:1806344. [PMID: 34804360 PMCID: PMC8601820 DOI: 10.1155/2021/1806344] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/15/2021] [Accepted: 09/28/2021] [Indexed: 01/22/2023]
Abstract
NOD-like receptor family, pyrin domain-containing protein 3 (NLRP3) inflammasome-mediated pyroptosis is a crucial event in the preeclamptic pathogenesis, tightly linked with the uteroplacental TLR4/NF-κB signaling. Trophoblastic glycometabolism reprogramming has now been noticed in the preeclampsia pathogenesis, plausibly modulated by the TLR4/NF-κB signaling as well. Intriguingly, cellular pyroptosis and metabolic phenotypes may be inextricably linked and interacted. Metformin (MET), a widely accepted NF-κB signaling inhibitor, may have therapeutic potential in preeclampsia while the underlying mechanisms remain unclear. Herein, we investigated the role of MET on trophoblastic pyroptosis and its relevant metabolism reprogramming. The safety of pharmacologic MET concentration to trophoblasts was verified at first, which had no adverse effects on trophoblastic viability. Pharmacological MET concentration suppressed NLRP3 inflammasome-induced pyroptosis partly through inhibiting the TLR4/NF-κB signaling in preeclamptic trophoblast models induced via low-dose lipopolysaccharide. Besides, MET corrected the glycometabolic reprogramming and oxidative stress partly via suppressing the TLR4/NF-κB signaling and blocking transcription factor NF-κB1 binding on the promoter PFKFB3, a potent glycolytic accelerator. Furthermore, PFKFB3 can also enhance the NF-κB signaling, reduce NLRP3 ubiquitination, and aggravate pyroptosis. However, MET suppressed pyroptosis partly via inhibiting PFKFB3 as well. These results provided that the TLR4/NF-κB/PFKFB3 pathway may be a novel link between metabolism reprogramming and NLRP3 inflammasome-induced pyroptosis in trophoblasts. Further, MET alleviates the NLRP3 inflammasome-induced pyroptosis, which partly relies on the regulation of TLR4/NF-κB/PFKFB3-dependent glycometabolism reprogramming and redox disorders. Hence, our results provide novel insights into the pathogenesis of preeclampsia and propose MET as a potential therapy.
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Inhibition of the PERK/TXNIP/NLRP3 Axis by Baicalin Reduces NLRP3 Inflammasome-Mediated Pyroptosis in Macrophages Infected with Mycobacterium tuberculosis. Mediators Inflamm 2021; 2021:1805147. [PMID: 34790063 PMCID: PMC8592748 DOI: 10.1155/2021/1805147] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/28/2021] [Accepted: 10/06/2021] [Indexed: 12/25/2022] Open
Abstract
Mycobacterium tuberculosis (Mtb) remains a significant threat to global health as it induces granuloma and systemic inflammatory responses during active tuberculosis. Mtb can induce macrophage pyroptosis, leading to the release of IL-1β and tissue damage, promoting its spread. Here, we established an in vitro Mtb-infected macrophage model to seek an effective antipyroptosis agent. Baicalin, isolated from Radix Scutellariae, was found to reduce pyroptosis in Mtb-infected macrophages. Baicalin could inhibit activation of the PERK/eIF2α pathway and thus downregulates TXNIP expression and subsequently reduces activation of the NLRP3 inflammasome, resulting in reduced pyroptosis in Mtb-infected macrophages. In conclusion, baicalin reduced pyroptosis by inhibiting the PERK/TXNIP/NLRP3 axis and might thus be a new adjuvant host-directed therapy (HDT) drug.
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