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Meng X, Zhu G, Yang YG, Sun T. Targeted delivery strategies: The interactions and applications of nanoparticles in liver diseases. Biomed Pharmacother 2024; 175:116702. [PMID: 38729052 DOI: 10.1016/j.biopha.2024.116702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/29/2024] [Accepted: 05/01/2024] [Indexed: 05/12/2024] Open
Abstract
In recent years, nanoparticles have been broadly utilized in various drugs delivery formulations. Nanodelivery systems have shown promise in solving problems associated with the distribution of hydrophobic drugs and have promoted the accumulation of nanomedicines in the circulation or in organs. However, the injection dose of nanoparticles (NPs) is much greater than that needed by diseased tissues or organs. In other words, most of the NPs are localized off-target and do not reach the desired tissue or organs. With the rapid development of biodegradable and biosafety nanomaterials, the nanovectors represent assurance of safety. However, the off-target effects also induce concerns about the application of NPs, especially in the delivery of gene editing tools. Therefore, a complete understanding of the biological responses to NPs in the body will clearly guide the design of targeted delivery of NPs. The different properties of various nanodelivery systems may induce diverse interactions between carriers and organs. In this review, we describe the relationship between the liver, the most influenced organ of systemic administration of NPs, and targeted delivery nanoplatforms. Various transport vehicles have adopted multiple delivery strategies for the targeted delivery to the cells in the homeostasis liver and in diseased liver. Additionally, nanodelivery systems provide a novel strategy for treating incurable diseases. The appearance of a targeted delivery has profoundly improved the application of NPs to liver diseases.
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Affiliation(s)
- Xiandi Meng
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Institute of Immunology, The First Hospital, Jilin University, Changchun, Jilin, China; National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, Jilin, China
| | - Ge Zhu
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Institute of Immunology, The First Hospital, Jilin University, Changchun, Jilin, China; National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, Jilin, China
| | - Yong-Guang Yang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Institute of Immunology, The First Hospital, Jilin University, Changchun, Jilin, China; International Center of Future Science, Jilin University, Changchun, Jilin, China; National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, Jilin, China.
| | - Tianmeng Sun
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Institute of Immunology, The First Hospital, Jilin University, Changchun, Jilin, China; International Center of Future Science, Jilin University, Changchun, Jilin, China; National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, Jilin, China; State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, Jilin, China.
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Rao JS, Ivkov R, Sharma A. Nanoparticle-Based Interventions for Liver Transplantation. Int J Mol Sci 2023; 24:7496. [PMID: 37108659 PMCID: PMC10144867 DOI: 10.3390/ijms24087496] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/29/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Liver transplantation is the only treatment for hepatic insufficiency as a result of acute and chronic liver injuries/pathologies that fail to recover. Unfortunately, there remains an enormous and growing gap between organ supply and demand. Although recipients on the liver transplantation waitlist have significantly higher mortality, livers are often not allocated because they are (i) classified as extended criteria or marginal livers and (ii) subjected to longer cold preservation time (>6 h) with a direct correlation of poor outcomes with longer cold ischemia. Downregulating the recipient's innate immune response to successfully tolerate a graft having longer cold ischemia times or ischemia-reperfusion injury through induction of immune tolerance in the graft and the host would significantly improve organ utilization and post-transplant outcomes. Broadly, technologies proposed for development aim to extend the life of the transplanted liver through post-transplant or recipient conditioning. In this review, we focus on the potential benefits of nanotechnology to provide unique pre-transplant grafting and recipient conditioning of extended criteria donor livers using immune tolerance induction and hyperthermic pre-conditioning.
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Affiliation(s)
- Joseph Sushil Rao
- Division of Solid Organ Transplantation, Department of Surgery, University of Minnesota, Minneapolis, MN 55455, USA
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN 55455, USA
| | - Robert Ivkov
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Oncology, Sydney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Mechanical Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Anirudh Sharma
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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Lee SW, Baek SM, Lee YJ, Kim TU, Yim JH, Son JH, Kim HY, Kang KK, Kim JH, Rhee MH, Park SJ, Choi SK, Park JK. Ginsenoside Rg3-enriched Korean red ginseng extract attenuates Non-Alcoholic Fatty Liver Disease by way of suppressed VCAM-1 expression in liver sinusoidal endothelium. J Ginseng Res 2022; 47:429-439. [DOI: 10.1016/j.jgr.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/07/2022] Open
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M 6A RNA Methylation Mediates NOD1/NF-kB Signaling Activation in the Liver of Piglets Challenged with Lipopolysaccharide. Antioxidants (Basel) 2022; 11:antiox11101954. [PMID: 36290677 PMCID: PMC9598714 DOI: 10.3390/antiox11101954] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/22/2022] [Accepted: 09/24/2022] [Indexed: 11/17/2022] Open
Abstract
N6-methyladenosine (m6A) is the most abundant internal modification that widely participates in various immune and inflammatory responses; however, its regulatory mechanisms in the inflammation of liver induced by lipopolysaccharide in piglets remain largely unknown. In the present study, piglets were intraperitoneally injected with 80 μg/kg LPS or an equal dose of sterile saline. Results indicated that LPS administration increased activities of serum alanine aminotransferase (ALT), induced M1 macrophage polarization and promoted secretion of inflammatory cytokines, and finally led to hepatic lesions in piglets. The NOD1/NF-κB signaling pathway was activated in the livers of the LPS group. Moreover, the total m6A level was significantly elevated after LPS treatment. MeRIP-seq showed that 1166 and 1344 transcripts contained m6A methylation in control and LPS groups, respectively. The m6A methylation sites of these transcripts mainly distributes in the 5′ untranslated region (5′UTR), the coding sequence (CDS), and the 3′ untranslated region (3′UTR). Interestingly, these genes were mostly enriched in the NF-κB signaling pathway, and LPS treatment significantly changed the m6A modification in NOD1, RIPK2, NFKBIA, NFKBIB, and TNFAIP3 mRNAs. In addition, knockdown of METTL3 or overexpression of FTO both changed gene levels in the NOD1/NF-κB pathway, suggesting that activation of this pathway was regulated by m6A RNA methylation. Moreover, the alteration of m6A RNA methylation profile may be associated with the increase of reactive oxygen species (ROS), HIF-1α, and MAT2A. In conclusion, LPS activated the NOD1/NF-κB pathway at post-transcriptional regulation through changing m6A RNA methylation, and then promoted the overproduction of proinflammatory cytokines, ultimately resulting in liver inflammation and damage.
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Liu Y, Li S, Zhang G, Cai J. NOD1 induces pyroptotic cell death to aggravate liver ischemia‐reperfusion injury in mice. MedComm (Beijing) 2022; 3:e170. [PMID: 36092860 PMCID: PMC9433815 DOI: 10.1002/mco2.170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 11/23/2022] Open
Abstract
Nucleotide‐binding oligomerization domain 1 (NOD1) can direct the release of inflammatory factors and influence autophagy and apoptosis in hepatic ischemia‐reperfusion injury (IRI) in mice. As pyroptosis is involved in a number of inflammatory reactions, in this report, we investigated the potential for NOD1 to affect pyroptosis. We found that an increased expression of NOD1 during IRI was related to activation of the pyroptotic signaling pathway. With NOD1 activation, cleavage fragments of Caspase‐1, gasdermin D (GSDMD), and interleukin (IL)‐1β were all increased. Moreover, downregulation of NOD1 expression in AML12 cells exerted an opposite effect. Expression levels of cleaved‐Caspase‐1 and cleaved‐GSDMD decreased after exposure to IRI and the number of cell membrane pores and apoptotic or pyroptotic cells decreased, along with the contents of inflammatory factors and lactate dehydrogenase in the supernatants of AML12 cells. Based on these findings, we conclude that NOD1 aggravates the pyroptotic cell death associated with hepatic ischemia‐reperfusion injury in a mouse model via the Caspase‐1/GSDMD axis. These findings help to alleviate pyroptotic cell death during liver transplantation or resection, providing new insights into novel protective therapies for liver IRI.
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Affiliation(s)
- Yu Liu
- Department of Gastroenterology Tianjin First Central Hospital The First Central Clinical College Tianjin Medical University Tianjin China
- Department of internal medicine Wangdingdi Hospital Nankai District Tianjin China
| | - Shipeng Li
- Department of General Surgery Jiaozuo People's Hospital Xinxiang Medical University Jiaozuo China
| | - Guoliang Zhang
- Department of Gastroenterology Tianjin First Central Hospital The First Central Clinical College Tianjin Medical University Tianjin China
| | - Jinzhen Cai
- Department of organ transplantation Organ Transplant Center Affiliated Hospital of Qingdao University Qingdao China
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Peng M, Sun R, Hong Y, Wang J, Xie Y, Zhang X, Li J, Guo H, Xu P, Li Y, Wang X, Wan T, Zhao Y, Huang F, Wang Y, Ye R, Liu Q, Liu G, Liu X, Xu G. Extracellular vesicles carrying proinflammatory factors may spread atherosclerosis to remote locations. Cell Mol Life Sci 2022; 79:430. [PMID: 35851433 PMCID: PMC11071964 DOI: 10.1007/s00018-022-04464-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/28/2022] [Accepted: 07/01/2022] [Indexed: 11/25/2022]
Abstract
Most cells involved in atherosclerosis release extracellular vesicles (EVs), which can carry bioactive substances to downstream tissues via circulation. We hypothesized that EVs derived from atherosclerotic plaques could promote atherogenesis in remote locations, a mechanism that mimics the blood metastasis of cancer. Ldlr gene knockout (Ldlr KO) rats were fed on a high cholesterol diet and underwent partial carotid ligation to induce local atherosclerosis. EVs were separated from carotid artery tissues and downstream blood of carotid ligation by centrifugation. MiRNA sequencing and qPCR were then performed to detect miRNA differences in EVs from rats with and without induced carotid atherosclerosis. Biochemical analyses demonstrated that EVs derived from atherosclerosis could increase the expression of ICAM-1, VCAM-1, and E-selectin in endothelial cells in vitro. EVs derived from atherosclerosis contained a higher level of miR-23a-3p than those derived from controls. MiR-23a-3p could promote endothelial inflammation by targeting Dusp5 and maintaining ERK1/2 phosphorylation in vitro. Inhibiting EV release could attenuate atherogenesis and reduce macrophage infiltration in vivo. Intravenously administrating atherosclerotic plaque-derived EVs could induce intimal inflammation, arterial wall thickening and lumen narrowing in the carotids of Ldlr KO rats, while simultaneous injection of miR-23a-3p antagomir could reverse this reaction. The results suggested that EVs may transfer atherosclerosis to remote locations by carrying proinflammatory factors, particularly miR-23a-3p.
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Affiliation(s)
- Mengna Peng
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Rui Sun
- Department of Neurology, Shanghai Changhai Hospital, Second Military Medical University/Naval Medical University, Shanghai, 200433, China
| | - Ye Hong
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210002, Jiangsu, China
| | - Jia Wang
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Yi Xie
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Xiaohao Zhang
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Juanji Li
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Hongquan Guo
- Department of Neurology, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Nanjing, 210002, Jiangsu, China
| | - Pengfei Xu
- Division of Life Sciences and Medicine, Stroke Center & Department of Neurology, Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230036, Anhui, China
| | - Yunzi Li
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Xiaoke Wang
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Ting Wan
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Ying Zhao
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Feihong Huang
- Department of Neurology, Guilin People's Hospital, Guilin, 541002, Guangxi, China
| | - Yuhui Wang
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University, Beijing, 100191, China
- Institute of Cardiovascular Sciences, School of Basic Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Ruidong Ye
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - Qian Liu
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China
| | - George Liu
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University, Beijing, 100191, China
- Institute of Cardiovascular Sciences, School of Basic Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Xinfeng Liu
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China.
- Department of Neurology, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Nanjing, 210002, Jiangsu, China.
- Division of Life Sciences and Medicine, Stroke Center & Department of Neurology, Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230036, Anhui, China.
| | - Gelin Xu
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China.
- Department of Neurology, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University, Shenzhen, 518035, Guangdong, China.
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Mega-Dose Vitamin C Ameliorates Nonalcoholic Fatty Liver Disease in a Mouse Fast-Food Diet Model. Nutrients 2022; 14:nu14112195. [PMID: 35683997 PMCID: PMC9182669 DOI: 10.3390/nu14112195] [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: 04/12/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 12/15/2022] Open
Abstract
In previous studies, the increasing clinical importance of nonalcoholic fatty liver disease (NAFLD) has been recognized. However, the specific therapeutic strategies or drugs have not been discovered. Vitamin C is a water-soluble antioxidant and is a cofactor in many important biosynthesis pathways. Recently, many researchers have reported that the mega-dose vitamin C treatment had positive effects on various diseases. However, the precise relationship between mega-dose vitamin C and NAFLD has not been completely elucidated. This study has been designed to discover the effects of mega-dose vitamin C on the progression of NAFLD. Twelve-week-old wild-type C57BL6 mice were fed chow diets and high-fat and high-fructose diet (fast-food diet) ad libitum for 11 weeks with or without of vitamin C treatment. Vitamin C was administered in the drinking water (1.5 g/L). In this study, 11 weeks of the mega-dose vitamin C treatment significantly suppressed the development of nonalcoholic steatohepatitis (NASH) independently of the catabolic process. Vitamin C supplements in fast-food diet fed mice significantly decreased diet ingestion and increased water intake. Histopathological analysis revealed that the mice fed a fast-food diet with vitamin C water had a mild renal injury suggesting osmotic nephrosis due to fructose-mediated purine derivatives. These data suggest that the mega-dose vitamin C treatment suppresses high-fructose-diet-mediated NAFLD progression by decreasing diet ingestion and increasing water intake.
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Hou J, Tolbert E, Birkenbach M, Ghonem NS. Treprostinil alleviates hepatic mitochondrial injury during rat renal ischemia-reperfusion injury. Biomed Pharmacother 2021; 143:112172. [PMID: 34560548 PMCID: PMC8550798 DOI: 10.1016/j.biopha.2021.112172] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/02/2021] [Accepted: 09/05/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Renal ischemia-reperfusion injury (IRI) causes acute kidney injury as well as liver injury. Renal IRI depletes hepatic antioxidants, promotes hepatic inflammation and dysfunction through Tlr9 upregulation. There is no treatment available for liver injury during renal IRI. This study examines the hepatoprotective role of treprostinil, a prostacyclin analog, during renal IRI. METHODS Male Sprague-Dawley rats were divided into four groups: control, sham, IRI-placebo, or IRI-treprostinil and subjected to bilateral ischemia (45 min) followed by reperfusion (1-72 h). Placebo or treprostinil (100 ng/kg/min) was administered subcutaneously via an osmotic minipump. RESULTS Treprostinil significantly reduced peak serum creatinine, BUN, ALT and AST levels vs. IRI-placebo. Treprostinil also restored hepatic levels of superoxide dismutase, glutathione, catalase, and Gclc expression to baseline, while reducing lipid peroxidation vs. IRI-placebo. Additionally, treprostinil significantly reduced elevated hepatic Tlr9, Il-1β, Ccl2, Vcam1, and Serpine1 mRNA expression. Renal IRI increased hepatic apoptosis which was inhibited by treprostinil through reduced cytochrome c and cleaved caspase-3 protein expression. Treprostinil enhanced hepatic ATP concentrations and mitochondrial DNA copy number and improved mitochondrial dynamics by restoring Pgc-1α expression and significantly upregulating Mfn1, Mfn2, and Sirt3 levels, while reducing Drp-1 protein vs. IRI-placebo. Non-targeted semi-quantitative proteomics showed improved oxidative stress indices and ATP subunits in the IRI-treprostinil group. CONCLUSIONS Treprostinil improved hepatic function and antioxidant levels, while suppressing the inflammatory response and alleviating Tlr9-mediated apoptotic injury during renal IRI. Our study provides evidence of treprostinil's hepatoprotective effect, which supports the therapeutic potential of treprostinil in reducing hepatic injury during renal IRI.
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Affiliation(s)
- Joyce Hou
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA
| | - Evelyn Tolbert
- Division of Renal Disease, Department of Medicine, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA
| | - Mark Birkenbach
- Department of Pathology, Rhode Island Hospital, Warren Alpert School of Medicine Brown University, 222 Richmond Street, Providence, RI 02903, USA
| | - Nisanne S Ghonem
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
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Abstract
Liver sinusoidal endothelial cells (LSECs) form the wall of the hepatic sinusoids. Unlike other capillaries, they lack an organized basement membrane and have cytoplasm that is penetrated by open fenestrae, making the hepatic microvascular endothelium discontinuous. LSECs have essential roles in the maintenance of hepatic homeostasis, including regulation of the vascular tone, inflammation and thrombosis, and they are essential for control of the hepatic immune response. On a background of acute or chronic liver injury, LSECs modify their phenotype and negatively affect neighbouring cells and liver disease pathophysiology. This Review describes the main functions and phenotypic dysregulations of LSECs in liver diseases, specifically in the context of acute injury (ischaemia-reperfusion injury, drug-induced liver injury and bacterial and viral infection), chronic liver disease (metabolism-associated liver disease, alcoholic steatohepatitis and chronic hepatotoxic injury) and hepatocellular carcinoma, and provides a comprehensive update of the role of LSECs as therapeutic targets for liver disease. Finally, we discuss the open questions in the field of LSEC pathobiology and future avenues of research.
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Guan Y, Yao W, Yi K, Zheng C, Lv S, Tao Y, Hei Z, Li M. Nanotheranostics for the Management of Hepatic Ischemia-Reperfusion Injury. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007727. [PMID: 33852769 DOI: 10.1002/smll.202007727] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/21/2021] [Indexed: 06/12/2023]
Abstract
Hepatic ischemia-reperfusion injury (IRI), in which an insufficient oxygen supply followed by reperfusion leads to an inflammatory network and oxidative stress in disease tissue to cause cell death, always occurs after liver transplantations and sections. Although pharmacological treatments favorably prevent or protect the liver against experimental IRI, there have been few successes in clinical applications for patient benefits because of the incomprehension of complicated IRI-induced signaling events as well as short blood circulation time, poor solubility, and severe side reactions of most antioxidants and anti-inflammatory drugs. Nanomaterials can achieve targeted delivery and controllable release of contrast agents and therapeutic drugs in desired hepatic IRI regions for enhanced imaging sensitivity and improved therapeutic effects, emerging as novel alternative approaches for hepatic IRI diagnosis and therapy. In this review, the application of nanotechnology is summarized in the management of hepatic IRI, including nanomaterial-assisted hepatic IRI diagnosis, nanoparticulate systems-mediated remission of reactive oxygen species-induced tissue injury, and nanoparticle-based targeted drug delivery systems for the alleviation of IRI-related inflammation. The current challenges and future perspectives of these nanoenabled strategies for hepatic IRI treatment are also discussed.
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Affiliation(s)
- Yu Guan
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Weifeng Yao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Ke Yi
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Chunxiong Zheng
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China
| | - Shixian Lv
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China
| | - Ziqing Hei
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China
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Fernández-García V, González-Ramos S, Martín-Sanz P, Laparra JM, Boscá L. NOD1-Targeted Immunonutrition Approaches: On the Way from Disease to Health. Biomedicines 2021; 9:biomedicines9050519. [PMID: 34066406 PMCID: PMC8148154 DOI: 10.3390/biomedicines9050519] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/26/2021] [Accepted: 05/04/2021] [Indexed: 02/07/2023] Open
Abstract
Immunonutrition appears as a field with great potential in modern medicine. Since the immune system can trigger serious pathophysiological disorders, it is essential to study and implement a type of nutrition aimed at improving immune system functioning and reinforcing it individually for each patient. In this sense, the nucleotide-binding oligomerization domain-1 (NOD1), one of the members of the pattern recognition receptors (PRRs) family of innate immunity, has been related to numerous pathologies, such as cancer, diabetes, or cardiovascular diseases. NOD1, which is activated by bacterial-derived peptidoglycans, is known to be present in immune cells and to contribute to inflammation and other important pathways, such as fibrosis, upon recognition of its ligands. Since immunonutrition is a significant developing research area with much to discover, we propose NOD1 as a possible target to consider in this field. It is relevant to understand the cellular and molecular mechanisms that modulate the immune system and involve the activation of NOD1 in the context of immunonutrition and associated pathological conditions. Surgical or pharmacological treatments could clearly benefit from the synergy with specific and personalized nutrition that even considers the health status of each subject.
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Affiliation(s)
- Victoria Fernández-García
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain; (V.F.-G.); (P.M.-S.)
- Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares (CIBERCV), Melchor Fernández Almagro 6, 28029 Madrid, Spain
| | - Silvia González-Ramos
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain; (V.F.-G.); (P.M.-S.)
- Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares (CIBERCV), Melchor Fernández Almagro 6, 28029 Madrid, Spain
- Correspondence: (S.G.-R.); (L.B.); Tel.: +34-91-497-2747 (L.B.)
| | - Paloma Martín-Sanz
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain; (V.F.-G.); (P.M.-S.)
- Centro de Investigación Biomédica en Red en Enfermedades Hepáticas (CIBERehd), 28029 Madrid, Spain
| | - José M. Laparra
- Madrid Institute for Advanced studies in Food (IMDEA Food), Ctra. Cantoblanco 8, 28049 Madrid, Spain;
| | - Lisardo Boscá
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain; (V.F.-G.); (P.M.-S.)
- Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares (CIBERCV), Melchor Fernández Almagro 6, 28029 Madrid, Spain
- Correspondence: (S.G.-R.); (L.B.); Tel.: +34-91-497-2747 (L.B.)
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Wang M, Ye X, Hu J, Zhao Q, Lv B, Ma W, Wang W, Yin H, Hao Q, Zhou C, Zhang T, Wu W, Wang Y, Zhou M, Zhang CH, Cui G. NOD1/RIP2 signalling enhances the microglia-driven inflammatory response and undergoes crosstalk with inflammatory cytokines to exacerbate brain damage following intracerebral haemorrhage in mice. J Neuroinflammation 2020; 17:364. [PMID: 33261639 PMCID: PMC7708246 DOI: 10.1186/s12974-020-02015-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 10/29/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Secondary brain damage caused by the innate immune response and subsequent proinflammatory factor production is a major factor contributing to the high mortality of intracerebral haemorrhage (ICH). Nucleotide-binding oligomerization domain 1 (NOD1)/receptor-interacting protein 2 (RIP2) signalling has been reported to participate in the innate immune response and inflammatory response. Therefore, we investigated the role of NOD1/RIP2 signalling in mice with collagenase-induced ICH and in cultured primary microglia challenged with hemin. METHODS Adult male C57BL/6 mice were subjected to collagenase for induction of ICH model in vivo. Cultured primary microglia and BV2 microglial cells (microglial cell line) challenged with hemin aimed to simulate the ICH model in vitro. We first defined the expression of NOD1 and RIP2 in vivo and in vitro using an ICH model by western blotting. The effect of NOD1/RIP2 signalling on ICH-induced brain injury volume, neurological deficits, brain oedema, and microglial activation were assessed following intraventricular injection of either ML130 (a NOD1 inhibitor) or GSK583 (a RIP2 inhibitor). In addition, levels of JNK/P38 MAPK, IκBα, and inflammatory factors, including tumour necrosis factor-α (TNF-α), interleukin (IL)-1β, and inducible nitric oxide synthase (iNOS) expression, were analysed in ICH-challenged brain and hemin-exposed cultured primary microglia by western blotting. Finally, we investigated whether the inflammatory factors could undergo crosstalk with NOD1 and RIP2. RESULTS The levels of NOD1 and its adaptor RIP2 were significantly elevated in the brains of mice in response to ICH and in cultured primary microglia, BV2 cells challenged with hemin. Administration of either a NOD1 or RIP2 inhibitor in mice with ICH prevented microglial activation and neuroinflammation, followed by alleviation of ICH-induced brain damage. Interestingly, the inflammatory factors interleukin (IL)-1β and tumour necrosis factor-α (TNF-α), which were enhanced by NOD1/RIP2 signalling, were found to contribute to the NOD1 and RIP2 upregulation in our study. CONCLUSION NOD1/RIP2 signalling played an important role in the regulation of the inflammatory response during ICH. In addition, a vicious feedback cycle was observed between NOD1/RIP2 and IL-1β/TNF-α, which could to some extent result in sustained brain damage during ICH. Hence, our study highlights NOD1/RIP2 signalling as a potential therapeutic target to protect the brain against secondary brain damage during ICH.
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Affiliation(s)
- Miao Wang
- Department of Neurology, Xuzhou first People's Hospital, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 269 University Road, Tongshan District, Xuzhou, Jiangsu, China.,Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Xinchun Ye
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Jinxia Hu
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Qiuchen Zhao
- Department of Neurology, Mass General Institute of Neurodegenerative Diseases, Massachusetts General Hospital and Harvard Medical School, Charlestown, USA
| | - Bingchen Lv
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Weijing Ma
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Weiwei Wang
- Department of Rehabilitation Medicine, Linyi Cancer Hospital, Linyi, Shandong, China
| | - Hanhan Yin
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Qi Hao
- Department of Neurology, Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Chao Zhou
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Tao Zhang
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Weifeng Wu
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Yan Wang
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Mingyue Zhou
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Cong-Hui Zhang
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China
| | - Guiyun Cui
- Institute of Nervous System Diseases and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, No. 99 West Huaihai Road, Xuzhou, 221006, Jiangsu Province, China.
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Abstract
A recent technological advance that shows promise for applications in health care, including transplantation medicine, is the implementation of nanoparticles. Nanoparticles can be composed of a variety of organic or inorganic materials and confer many advantages over conventional treatments available, such as low toxicity, low-effective dosage required, and a high degree of manipulability. Although also used for imaging and diagnostics, nanoparticles' utility as a drug or genetic delivery system is of particular interest in transplantation medicine. Currently, researchers are exploring options to integrate nanoparticles into both diagnostics and therapy for both grafts ex-situ before transplantation and for patients following transplantation. These studies have demonstrated that nanoparticles can mitigate damage to organs and patients through a large variety of mechanisms-ranging from the induction of cellular genetic changes to the enhancement of immunosuppressive drug delivery. Specifically, with the advent of machine perfusion preservation ex vivo, treatment of the graft became a very attractive approach and nanoparticles have great potential. However, before nanoparticles can be translated into clinical use, their short-term and long-term toxicity must be thoroughly characterized, especially with regards to their interactions with other biological molecules present in the human body.
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Ma X, Zhang W, Xu C, Zhang S, Zhao J, Pan Q, Wang Z. Nucleotide-binding oligomerization domain protein 1 enhances oxygen-glucose deprivation and reperfusion injury in cortical neurons via activation of endoplasmic reticulum stress-mediated autophagy. Exp Mol Pathol 2020; 117:104525. [PMID: 32888957 DOI: 10.1016/j.yexmp.2020.104525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/27/2020] [Accepted: 08/31/2020] [Indexed: 12/19/2022]
Abstract
Cerebral ischemia-reperfusion (CIR) can regulate multiple transcription factors to enhance or attenuate injury. Nucleotide-binding oligomerization domain protein 1 (NOD1) has been reported to be involved in autophagy and endoplasmic reticulum (ER) stress. Moreover, autophagy and ER stress play important roles in CIR injury. Hence, the function of NOD1 in CIR injury was explored in this study. Primary rat cortical neurons were treated with oxygen-glucose deprivation and reperfusion (OGD/R) in vitro. NOD1 level was measured using immunofluorescence, real-time quantitative PCR and western blotting and its ubiquitination using co-immunoprecipitation. Results showed that OGD/R up-regulated NOD1 level but inhibited NOD1 ubiquitination. Then the effect of NOD1 on OGD/R-induced changes in cell viability, apoptosis, autophagy and ER stress was evaluated by methyl thiazolyl tetrazolium assay, lactate dehydrogenase release, Hoechst staining, detection of autophagy and ER stress-related proteins using western blotting and infection with GFP-LC3 lentiviruses. OGD/R decreased cell viability and increased cell apoptosis. NOD1 up-regulation promoted these changes, but NOD1 down-regulation reversed these changes. Moreover, OGD/R triggered autophagy and ER stress and NOD1 silencing reversed OGD/R-induced changes in autophagy and ER stress. To validate the role of autophagy in OGD/R injury, autophagy inducer rapamycin was used. Rapamycin promoted OGD/R-induced decrease in cell viability and counteracted NOD1 silencing-induced increase in cell viability. In addition, ER stress inducer tunicamycin was used to investigate the relationship between ER stress and autophagy. Tunicamycin promoted OGD/R-induced decrease in cell viability and reversed NOD1 silencing-induced increase in cell viability. Tunicamycin also enhanced OGD/R-induced autophagy and reversed NOD1 silencing-induced inhibition in autophagy. The results indicated that NOD1 promoted OGD/R injury in cortical neurons through activating ER stress-mediated autophagy. This study provides new insights for the target of CIR injury treatment.
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Affiliation(s)
- Xiande Ma
- Teaching and Experiment Center, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China
| | - Wei Zhang
- Third Department of Encephalopathy rehabilitation, The First Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang 110032, People's Republic of China
| | - Chang Xu
- Department of Basic Sciences of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China
| | - Shuangshuang Zhang
- Department of Basic Sciences of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China
| | - Jiaxiu Zhao
- Department of Basic Sciences of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China
| | - Qian Pan
- Department of Pathology, College of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China.
| | - Zhe Wang
- Department of Pathology, College of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China.
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Shi Y, Liu H, Liu H, Yu Y, Zhang J, Li Y, Luo G, Zhang X, Xu N. Increased expression levels of inflammatory cytokines and adhesion molecules in lipopolysaccharide‑induced acute inflammatory apoM‑/‑ mice. Mol Med Rep 2020; 22:3117-3126. [PMID: 32945469 PMCID: PMC7453663 DOI: 10.3892/mmr.2020.11426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 04/23/2020] [Indexed: 02/07/2023] Open
Abstract
Apolipoprotein M (apoM) may serve a protective role in the development of inflammation. Nuclear factor-κB (NF-κB) and its downstream factors (including a number of inflammatory cytokines and adhesion molecules) are essential for the regulation of inflammatory processes. In the present study, the importance of apoM in lipopolysaccharide (LPS)-induced acute inflammation and its potential underlying mechanisms, were investigated using an apoM-knockout mouse model. The levels of inducible nitric oxide synthase (iNOS), NF-κB, interleukin (IL)-1β, intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion protein 1 (VCAM-1) were detected using reverse transcription-quantitative PCR and western blotting. The serum levels of IL-6 and IL-10 were detected using Luminex technology. The results demonstrated that the protein levels of iNOS, NF-κB, IL-1β, ICAM-1 and VCAM-1 were significantly increased in apoM−/− mice compared with those in apoM+/+ mice. In addition, two-way ANOVA revealed that the interaction between apoM and LPS had a statistically significant effect on a number of factors, including the mRNA expression levels of hepatic iNOS, NF-κB, IL-1β, ICAM-1 and VCAM-1. Notably, the effects of apoM and 10 mg/kg LPS on the levels of IL-6 and IL-10 were the opposite of those induced by 5 mg/kg LPS, which could be associated with the dual anti- and pro-inflammatory effects of IL-6 and IL-10. Collectively, the results of the present study revealed that apoM is an important regulator of inflammatory cytokine and adhesion molecule production in LPS-induced inflammation, which may consequently be associated with the severity of inflammation. These findings indicated that the anti-inflammatory effects of apoM may partly result from the inhibition of the NF-κB pathway.
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Affiliation(s)
- Yuanping Shi
- Comprehensive Laboratory, Changzhou Key Laboratory of Individualized Diagnosis and Treatment Associated with High Technology Research, Changzhou, Jiangsu 213003, P.R. China
| | - Hongyao Liu
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
| | - Hong Liu
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
| | - Yang Yu
- Comprehensive Laboratory, Changzhou Key Laboratory of Individualized Diagnosis and Treatment Associated with High Technology Research, Changzhou, Jiangsu 213003, P.R. China
| | - Jun Zhang
- Comprehensive Laboratory, Changzhou Key Laboratory of Individualized Diagnosis and Treatment Associated with High Technology Research, Changzhou, Jiangsu 213003, P.R. China
| | - Yanfei Li
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
| | - Guanghua Luo
- Comprehensive Laboratory, Changzhou Key Laboratory of Individualized Diagnosis and Treatment Associated with High Technology Research, Changzhou, Jiangsu 213003, P.R. China
| | - Xiaoying Zhang
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
| | - Ning Xu
- Section of Clinical Chemistry and Pharmacology, Institute of Laboratory Medicine, Lund University, SE‑221 85 Lund, Sweden
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Zhou J, Chen J, Wei Q, Saeb-Parsy K, Xu X. The Role of Ischemia/Reperfusion Injury in Early Hepatic Allograft Dysfunction. Liver Transpl 2020; 26:1034-1048. [PMID: 32294292 DOI: 10.1002/lt.25779] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/15/2020] [Accepted: 04/06/2020] [Indexed: 12/13/2022]
Abstract
Liver transplantation (LT) is the only available curative treatment for patients with end-stage liver disease. Early allograft dysfunction (EAD) is a life-threatening complication of LT and is thought to be mediated in large part through ischemia/reperfusion injury (IRI). However, the underlying mechanisms linking IRI and EAD after LT are poorly understood. Most previous studies focused on the clinical features of EAD, but basic research on the underlying mechanisms is insufficient, due, in part, to a lack of suitable animal models of EAD. There is still no consensus on definition of EAD, which hampers comparative analysis of data from different LT centers. IRI is considered as an important risk factor of EAD, which can induce both damage and adaptive responses in liver grafts. IRI and EAD are closely linked and share several common pathways. However, the underlying mechanisms remain largely unclear. Therapeutic interventions against EAD through the amelioration of IRI is a promising strategy, but most approaches are still in preclinical stages. To further study the mechanisms of EAD and promote collaborations between LT centers, optimized animal models and unified definitions of EAD are urgently needed. Because IRI and EAD are closely linked, more attention should be paid to the underlying mechanisms and the fundamental relationship between them. Ischemia/reperfusion-induced adaptive responses may play a crucial role in the prevention of EAD, and more preclinical studies and clinical trials are urgently needed to address the current limitation of available therapeutic interventions.
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Affiliation(s)
- Junbin Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Health and Family Planning Commission (NHFPC) Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China
| | - Jian Chen
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Health and Family Planning Commission (NHFPC) Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China
| | - Qiang Wei
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Health and Family Planning Commission (NHFPC) Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China
| | - Kourosh Saeb-Parsy
- Department of Surgery, University of Cambridge, Cambridge, United Kingdom.,Cambridge National Institute of Health Research Biomedical research Centre, Cambridge, United Kingdom
| | - Xiao Xu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Health and Family Planning Commission (NHFPC) Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China
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Downregulating Serine Hydroxymethyltransferase 2 Deteriorates Hepatic Ischemia-Reperfusion Injury through ROS/JNK/P53 Signaling in Mice. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2712185. [PMID: 31828098 PMCID: PMC6885790 DOI: 10.1155/2019/2712185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 10/16/2019] [Indexed: 12/21/2022]
Abstract
Background Serine hydroxymethyltransferase 2 (SHMT2) activity ensures that cells have a survival advantage in ischemic conditions and regulates redox homeostasis. In this study, we aimed to investigate the role of SHMT2 after hepatic ischemia-reperfusion (IR), which involves hypoxia, ischemic conditions, and cell apoptosis. Methods A 70% IR model was established in C57BL/6J mice with or without SHMT2 knockdown. H&E staining, liver weight/body weight, serum alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels and cell apoptosis were tested to analyze liver damage and function. Then, the related cellular signals were probed. Results The level of SHMT2 protein was significantly increased at 24 h and 48 h after IR (p < 0.001). Mice in the shSHMT2 group showed more necrotic areas and histological damage at 24 h (p < 0.01) after IR and higher levels of serum ALT and AST (p < 0.05) compared with those of mice in the scramble group. After IR for 24 h, the expression of TUNEL in the shSHMT2 group was significantly higher than that in the scramble group, as shown by histological analysis (p < 0.01). Mechanistically, the JNK/P53 signaling pathway was activated by IR, and knockdown of SHMT2 exacerbated hepatocyte apoptosis. Conclusions Knockdown of SHMT2 worsens IR injury through the ROS/JNK/P53 signaling pathway. Our discovery expands the understanding of both molecular and metabolic mechanisms involved in IR. SHMT2 is a possible therapeutic target to improve the prognosis of liver transplantation (LT) and subtotal hepatectomy.
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