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Zhang X, Yang Z, Fu C, Yao R, Li H, Peng F, Li N. Emerging roles of liquid-liquid phase separation in liver innate immunity. Cell Commun Signal 2024; 22:430. [PMID: 39227829 PMCID: PMC11373118 DOI: 10.1186/s12964-024-01787-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Accepted: 08/11/2024] [Indexed: 09/05/2024] Open
Abstract
Biomolecular condensates formed by liquid-liquid phase separation (LLPS) have become an extensive mechanism of macromolecular metabolism and biochemical reactions in cells. Large molecules like proteins and nucleic acids will spontaneously aggregate and assemble into droplet-like structures driven by LLPS when the physical and chemical properties of cells are altered. LLPS provides a mature molecular platform for innate immune response, which tightly regulates key signaling in liver immune response spatially and physically, including DNA and RNA sensing pathways, inflammasome activation, and autophagy. Take this, LLPS plays a promoting or protecting role in a range of liver diseases, such as viral hepatitis, non-alcoholic fatty liver disease, liver fibrosis, hepatic ischemia-reperfusion injury, autoimmune liver disease, and liver cancer. This review systematically describes the whole landscape of LLPS in liver innate immunity. It will help us to guide a better-personalized approach to LLPS-targeted immunotherapy for liver diseases.
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Affiliation(s)
- Xinying Zhang
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 87 Xiangya Road, Hunan Province, China
| | - Ziyue Yang
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Chunmeng Fu
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Run Yao
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Huan Li
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Fang Peng
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.
| | - Ning Li
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.
- Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.
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2
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Hinz K, Niu M, Ni HM, Ding WX. Targeting Autophagy for Acetaminophen-Induced Liver Injury: An Update. LIVERS 2024; 4:377-387. [PMID: 39301093 PMCID: PMC11412313 DOI: 10.3390/livers4030027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/22/2024] Open
Abstract
Acetaminophen (APAP) overdose can induce hepatocyte necrosis and acute liver failure in experimental rodents and humans. APAP is mainly metabolized via hepatic cytochrome P450 enzymes to generate the highly reactive metabolite N-acetyl-p-benzoquinone imine (NAPQI), which forms acetaminophen protein adducts (APAP-adducts) and damages mitochondria, triggering necrosis. APAP-adducts and damaged mitochondria can be selectively removed by autophagy. Increasing evidence implies that the activation of autophagy may be beneficial for APAP-induced liver injury (AILI). In this minireview, we briefly summarize recent progress on autophagy, in particular, the pharmacological targeting of SQSTM1/p62 and TFEB in AILI.
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Affiliation(s)
- Kaitlyn Hinz
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Mengwei Niu
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Hong-Min Ni
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA
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Shen W, Yang M, Chen H, He C, Li H, Yang X, Zhuo J, Lin Z, Hu Z, Lu D, Xu X. FGF21-mediated autophagy: Remodeling the homeostasis in response to stress in liver diseases. Genes Dis 2024; 11:101027. [PMID: 38292187 PMCID: PMC10825283 DOI: 10.1016/j.gendis.2023.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/23/2023] [Accepted: 05/09/2023] [Indexed: 02/01/2024] Open
Abstract
Liver diseases are worldwide problems closely associated with various stresses, such as endoplasmic reticulum stress. The exact interplay between stress and liver diseases remains unclear. Autophagy plays an essential role in maintaining homeostasis, and recent studies indicate tight crosstalk between stress and autophagy in liver diseases. Once the balance between damage and autophagy is broken, autophagy can no longer resist injury or maintain homeostasis. In recent years, FGF21 (fibroblast growth factor 21)-induced autophagy has attracted much attention. FGF21 is regarded as a stress hormone and can be up-regulated by an abundance of signaling pathways in response to stress. Also, increased FGF21 activates autophagy by a complicated signaling network in which mTOR plays a pivotal role. This review summarizes the mechanism of FGF21-mediated autophagy and its derived application in the defense of stress in liver diseases and offers a glimpse into its promising prospect in future clinical practice.
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Affiliation(s)
- Wei Shen
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Modan Yang
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Hao Chen
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Chiyu He
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Huigang Li
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Xinyu Yang
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Jianyong Zhuo
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Zuyuan Lin
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Zhihang Hu
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Di Lu
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Xiao Xu
- Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- The Institute for Organ Repair and Regenerative Medicine of Hangzhou, Hangzhou, Zhejiang 310006, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou, Zhejiang 310003, China
- National Center for Healthcare Quality Management in Liver Transplant, Hangzhou, Zhejiang 310003, China
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Fang Z, Xu Y, Liu G, Shao Q, Niu X, Tai W, Shen T, Fan M, Chen M, Lei L, Gao W, Song Y, Wang Z, Du X, Li X. Narirutin activates TFEB (transcription factor EB) to protect against Acetaminophen-induced liver injury by targeting PPP3/calcineurin. Autophagy 2023; 19:2240-2256. [PMID: 36779633 PMCID: PMC10351474 DOI: 10.1080/15548627.2023.2179781] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/14/2023] Open
Abstract
Acetaminophen (APAP) overdose is the predominant cause of drug-induced liver injury worldwide. The macroautophagy/autophagy-lysosomal pathway (ALP) is involved in the APAP hepatotoxicity. TFEB (transcription factor EB) promotes the expression of genes related to autophagy and lysosomal biogenesis, thus, pharmacological activation of TFEB-mediated ALP may be an effective therapeutic approach for treating APAP-induced liver injury. We aimed to reveal the effects of narirutin (NR), the main bioactive constituents isolated from citrus peels, on APAP hepatotoxicity and to explore its underlying mechanism. Administration of NR enhanced activities of antioxidant enzymes, improved mitochondrial dysfunction and alleviated liver injury in APAP-treated mice, whereas NR did not affect APAP metabolism and MAPK/JNK activation. NR enhanced TFEB transcriptional activity and activated ALP in an MTOR complex 1 (MTORC1)-independent but PPP3/calcineurin-dependent manner. Moreover, knockout of Tfeb or knockdown of PPP3CB/CNA2 (protein phosphatase 3, catalytic subunit, beta isoform) in the liver abolished the beneficial effects of NR on APAP overdose. Mechanistically, NR bound to PPP3CB via PRO31, LYS61 and PRO347 residues and enhanced PPP3/calcineurin activity, thereby eliciting dephosphorylation of TFEB and promoting ALP, which alleviated APAP-induced oxidative stress and liver injury. Together, NR protects against APAP-induced liver injury by activating a PPP3/calcineurin-TFEB-ALP axis, indicating NR may be a potential agent for treating APAP overdose.Abbreviations: ALP: autophagy-lysosomal pathway; APAP: acetaminophen; APAP-AD: APAP-protein adducts; APAP-Cys: acetaminophen-cysteine adducts; CAT: catalase; CETSA: cellular thermal shift assay; CQ: chloroquine; CYP2E1: cytochrome P450, family 2, subfamily e, polypeptide 1; CYCS/Cyt c: cytochrome c, somatic; DARTS: drug affinity responsive target stability assay; ENGASE/NAG: endo-beta-N-acetylglucosaminidase; GOT1/AST: glutamic-oxaloacetic transaminase 1, soluble; GPT/ALT: glutamic pyruvic transaminase, soluble; GSH: glutathione; GPX/GSH-Px: glutathione peroxidase; KD: dissociation constant; Leu: leupeptin; MCOLN1: mucolipin 1; MTORC1: MTOR complex 1; NAC: N-acetylcysteine; NAPQI: N-acetyl-p-benzoquinoneimine; NFAT: nuclear factor of activated T cells; NR: narirutin; OA: okadaic acid; RRAG: Ras related GTP binding; ROS: reactive oxygen species; PPP3CB/CNA2: protein phosphatase 3, catalytic subunit, beta isoform; PPP3R1/CNB1: protein phosphatase 3, regulatory subunit B, alpha isoform (calcineurin B, type I); SOD: superoxide dismutase; SPR: surface plasmon resonance analysis; TFEB: transcription factor EB.
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Affiliation(s)
- Zhiyuan Fang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Yanyong Xu
- Key Laboratory of Metabolism and Molecular Medicine of the Ministry of Education, Department of Pathology of School of Basic Medical Sciences, Fudan University, Shanghai, China
- Frontier Innovation Center, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Guowen Liu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Qi Shao
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Xiaodi Niu
- College of Food Science and Engineering, Jilin University, Changchun, China
| | - Wenjun Tai
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Taiyu Shen
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Minghe Fan
- Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Meng Chen
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Lin Lei
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Wenwen Gao
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Yuxiang Song
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Zhe Wang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Xiliang Du
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
| | - Xinwei Li
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, ChangchunJilin, China
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Coelho AM, Queiroz IF, Lima WG, Talvani A, Perucci LO, Oliveira de Souza M, Costa DC. Temporal analysis of paracetamol-induced hepatotoxicity. Drug Chem Toxicol 2023; 46:472-481. [PMID: 35313777 DOI: 10.1080/01480545.2022.2052891] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Paracetamol-induced hepatotoxicity (APAP) causes severe damage that may be irreversible. Understanding the evolution of liver injury caused by overdose of the drug is important to assist in the treatment. In the present study, we evaluated the acute intoxication by APAP (500 mg/kg) in periods of 3 and 12 hours in C57BL/6 mice through biochemical, histological, inflammatory parameters, and the redox status. The results showed that in the 3-hour period there was an increase in creatinine dosage and lipid peroxidation (TBARS) compared to the control group. In the period of 12 hours after APAP intoxication all parameters evaluated were altered; there was an increase of ALT, AST, and necrosis, besides the increase of redox status biomarkers as carbonylated protein, TBARS, and MMP-9. We also observed activation of the inflammasome pathway as well as a reduction in the regenerative capacity of hepatocytes with a decrease in binucleated liver cells. In cytochrome gene expression, the mRNA level increased in CYP2E1 isoenzyme and reduced CYP1A2 expression. This study indicated that early treatment is necessary to mitigate APAP-induced acute liver injury, and alternative therapies capable of controlling the progression of intoxication in the liver are needed.
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Affiliation(s)
- Aline Meireles Coelho
- Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences, Federal University of Ouro Preto (UFOP), Minas Gerais, Brazil
| | - Isabela Ferreira Queiroz
- Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences, Federal University of Ouro Preto (UFOP), Minas Gerais, Brazil
| | - Wanderson Geraldo Lima
- Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences, Federal University of Ouro Preto (UFOP), Minas Gerais, Brazil
| | - André Talvani
- Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences, Federal University of Ouro Preto (UFOP), Minas Gerais, Brazil
| | - Luiza Oliveira Perucci
- Center for Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Minas Gerais, Brazil
| | - Melina Oliveira de Souza
- Department of Food (DEALI), School of Nutrition, Universidade Federal de Ouro Preto (UFOP), Minas Gerais, Brazil
| | - Daniela Caldeira Costa
- Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences, Federal University of Ouro Preto (UFOP), Minas Gerais, Brazil
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Jiang N, Zhang J, Ping J, Xu L. Salvianolic acid B inhibits autophagy and activation of hepatic stellate cells induced by TGF-β1 by downregulating the MAPK pathway. Front Pharmacol 2022; 13:938856. [PMID: 35991894 PMCID: PMC9385955 DOI: 10.3389/fphar.2022.938856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 06/29/2022] [Indexed: 11/16/2022] Open
Abstract
In liver fibrosis, transforming growth factor-β1 (TGF-β1) can stimulate autophagy and activation of hepatic stellate cells (HSCs). Autophagy, playing a crucial role in HSCs activation, is related to liver fibrosis. Increasing evidence have suggested that antifibrosis effects of salvianolic acid B (Sal B) and their mechanisms of action, however, remain unclear. The aim of the article is to understand the role of Sal B in HSCs autophagy in liver fibrosis. Herein, we demonstrated that inducing TGF-β1 led to dramatic increase in autophagosome formation and autophagic flux in JS1 and LX2, which was mediated through the ERK, JNK, and p38 MAPK cascades. TGF-β1 significantly increased the protein of autophagy and liver fibrosis, including LC3BⅡ, ATG5, α-SMA, and Col.I; Sal B inhibits JS1 autophagy and activation by inhibiting the formation of autophagosomes and autophagic flux. Sal B significantly decreased the LC3BⅡ, ATG5, α-SMA, and Col.I protein expressions; pretreatment with autophagy inhibitors, chloroquine (CQ) and 3-methyladenine (3-MA) or silencing ATG7 further increase these reductions. However, pretreatment with autophagy agonist, rapamycin (Rapa), or overexpressed ATG5 attenuated this decrease. To further assess the importance of this mechanism, the antibody chip was used to detect the change of phosphorylation protein expression of the MAPK signaling pathway after treating JS1 with Sal B. Eleven differentially expressed proteins were verified. Sal B inhibits activation and autophagy of JS1 induced by TGF-β1 through downregulating the ERK, p38, and JNK signaling pathways, as demonstrated by downregulating p-ERK, p-JNK, and p-p38 MAPK protein expressions. In conclusion, Sal B inhibits autophagy and activation induced by TGF-β1 of HSCs possibly by downregulating the MAPK pathway.
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Affiliation(s)
- Na Jiang
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jing Zhang
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jian Ping
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China,Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai, China
| | - Lieming Xu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China,Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai, China,Institute of Liver Diseases, Shanghai University of TCM, Shanghai, China,Shanghai Key Laboratory of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Lieming Xu,
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Jaeschke H, Adelusi OB, Akakpo JY, Nguyen NT, Sanchez-Guerrero G, Umbaugh DS, Ding WX, Ramachandran A. Recommendations for the use of the acetaminophen hepatotoxicity model for mechanistic studies and how to avoid common pitfalls. Acta Pharm Sin B 2021; 11:3740-3755. [PMID: 35024303 PMCID: PMC8727921 DOI: 10.1016/j.apsb.2021.09.023] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/22/2021] [Accepted: 09/10/2021] [Indexed: 02/07/2023] Open
Abstract
Acetaminophen (APAP) is a widely used analgesic and antipyretic drug, which is safe at therapeutic doses but can cause severe liver injury and even liver failure after overdoses. The mouse model of APAP hepatotoxicity recapitulates closely the human pathophysiology. As a result, this clinically relevant model is frequently used to study mechanisms of drug-induced liver injury and even more so to test potential therapeutic interventions. However, the complexity of the model requires a thorough understanding of the pathophysiology to obtain valid results and mechanistic information that is translatable to the clinic. However, many studies using this model are flawed, which jeopardizes the scientific and clinical relevance. The purpose of this review is to provide a framework of the model where mechanistically sound and clinically relevant data can be obtained. The discussion provides insight into the injury mechanisms and how to study it including the critical roles of drug metabolism, mitochondrial dysfunction, necrotic cell death, autophagy and the sterile inflammatory response. In addition, the most frequently made mistakes when using this model are discussed. Thus, considering these recommendations when studying APAP hepatotoxicity will facilitate the discovery of more clinically relevant interventions.
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Key Words
- AIF, apoptosis-inducing factor
- AMPK, AMP-activated protein kinase
- APAP, acetaminophen
- ARE, antioxidant response element
- ATG, autophagy-related genes
- Acetaminophen hepatotoxicity
- Apoptosis
- Autophagy
- BSO, buthionine sulfoximine
- CAD, caspase-activated DNase
- CYP, cytochrome P450 enzymes
- DAMPs, damage-associated molecular patterns
- DMSO, dimethylsulfoxide
- Drug metabolism
- EndoG, endonuclease G
- FSP1, ferroptosis suppressing protein 1
- Ferroptosis
- GPX4, glutathione peroxidase 4
- GSH, glutathione
- GSSG, glutathione disulfide
- Gclc, glutamate–cysteine ligase catalytic subunit
- Gclm, glutamate–cysteine ligase modifier subunit
- HMGB1, high mobility group box protein 1
- HNE, 4-hydroxynonenal
- Innate immunity
- JNK, c-jun N-terminal kinase
- KEAP1, Kelch-like ECH-associated protein 1
- LAMP, lysosomal-associated membrane protein
- LC3, light chain 3
- LOOH, lipid hydroperoxides
- LPO, lipid peroxidation
- MAP kinase, mitogen activated protein kinase
- MCP-1, monocyte chemoattractant protein-1
- MDA, malondialdehyde
- MPT, mitochondrial permeability transition
- Mitochondria
- MnSOD, manganese superoxide dismutase
- NAC, N-acetylcysteine
- NAPQI, N-acetyl-p-benzoquinone imine
- NF-κB, nuclear factor κB
- NQO1, NAD(P)H:quinone oxidoreductase 1
- NRF2
- NRF2, nuclear factor erythroid 2-related factor 2
- PUFAs, polyunsaturated fatty acids
- ROS, reactive oxygen species
- SMAC/DIABLO, second mitochondria-derived activator of caspase/direct inhibitor of apoptosis-binding protein with low pI
- TLR, toll like receptor
- TUNEL, terminal deoxynucleotidyl transferase dUTP nick end labeling
- UGT, UDP-glucuronosyltransferases
- mTORC1, mammalian target of rapamycin complex 1
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Affiliation(s)
- Hartmut Jaeschke
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Olamide B. Adelusi
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Jephte Y. Akakpo
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Nga T. Nguyen
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Giselle Sanchez-Guerrero
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - David S. Umbaugh
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Anup Ramachandran
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
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Qian H, Chao X, Williams J, Fulte S, Li T, Yang L, Ding WX. Autophagy in liver diseases: A review. Mol Aspects Med 2021; 82:100973. [PMID: 34120768 DOI: 10.1016/j.mam.2021.100973] [Citation(s) in RCA: 147] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/29/2021] [Accepted: 05/30/2021] [Indexed: 02/07/2023]
Abstract
The liver is a highly dynamic metabolic organ that plays critical roles in plasma protein synthesis, gluconeogenesis and glycogen storage, cholesterol metabolism and bile acid synthesis as well as drug/xenobiotic metabolism and detoxification. Research from the past decades indicate that autophagy, the cellular catabolic process mediated by lysosomes, plays an important role in maintaining cellular and metabolic homeostasis in the liver. Hepatic autophagy fluctuates with hormonal cues and the availability of nutrients that respond to fed and fasting states as well as circadian activities. Dysfunction of autophagy in liver parenchymal and non-parenchymal cells can lead to various liver diseases including non-alcoholic fatty liver diseases, alcohol associated liver disease, drug-induced liver injury, cholestasis, viral hepatitis and hepatocellular carcinoma. Therefore, targeting autophagy may be a potential strategy for treating these various liver diseases. In this review, we will discuss the current progress on the understanding of autophagy in liver physiology. We will also discuss several forms of selective autophagy in the liver and the molecular signaling pathways in regulating autophagy of different cell types and their implications in various liver diseases.
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Affiliation(s)
- Hui Qian
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
| | - Xiaojuan Chao
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
| | - Jessica Williams
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
| | - Sam Fulte
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
| | - Tiangang Li
- Harold Hamm Diabetes Center, Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Ling Yang
- Department of Anatomy and Cell Biology, Fraternal Order of Eagles Diabetes Research Center, Pappajohn Biomedical Institute, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA.
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Sun H, Ni HM, McCracken JM, Akakpo JY, Fulte S, McKeen T, Jaeschke H, Wang H, Ding WX. Liver-specific deletion of mechanistic target of rapamycin does not protect against acetaminophen-induced liver injury in mice. LIVER RESEARCH 2021; 5:79-87. [PMID: 34504721 PMCID: PMC8425470 DOI: 10.1016/j.livres.2021.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Acetaminophen (APAP) overdose can cause liver injury and liver failure, which is one of the most common causes of drug-induced liver injury in the United States. Pharmacological activation of autophagy by inhibiting mechanistic target of rapamycin (mTOR) protects against APAP-induced liver injury likely via autophagic removal of APAP-adducts and damaged mitochondria. In the present study, we aimed to investigate the role of genetic ablation of mTOR pathways in mouse liver in APAP-induced liver injury and liver repair/regeneration. METHODS Albumin-Cre (Alb-Cre) mice, mTORf/f and Raptorf/f mice (C57BL/6J background) were crossbred to produce liver-specific mTOR knockout (L-mTOR KO, Alb Cre+/-, mTORf/f) and liver-specific Raptor KO (L-Raptor, Alb Cre+/-, Raptor f/f) mice. Alb-Cre littermates were used as wild-type (WT) mice. These mice were treated with APAP for various time points for up to 48 h. Liver injury, cell proliferation, autophagy and mTOR activation were determined. RESULTS We found that genetic deletion of neither Raptor, an important adaptor protein in mTOR complex 1, nor mTOR, in the mouse liver significantly protected against APAP-induced liver injury despite increased hepatic autophagic flux. Genetic deletion of Raptor or mTOR in mouse livers did not affect APAP metabolism and APAP-induced c-Jun N-terminal kinase (JNK) activation, but slightly improved mouse survival likely due to increased hepatocyte proliferation. CONCLUSIONS Our results indicate that genetic ablation of mTOR in mouse livers does not protect against APAP-induced liver injury but may slightly improve liver regeneration and mouse survival after APAP overdose.
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Affiliation(s)
- Hua Sun
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA,Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hong-Min Ni
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Jennifer M. McCracken
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Jephte Y Akakpo
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Sam Fulte
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Tara McKeen
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Hartmut Jaeschke
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Hua Wang
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA,Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA,Corresponding author. Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS, USA. (W.-X. Ding)
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10
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Vogler J, Böttger R, Al Fayez N, Zhang W, Qin Z, Hohenwarter L, Chao PH, Rouhollahi E, Bilal N, Chen N, Lee B, Chen C, Wilkinson B, Kieffer TJ, Kulkarni JA, Cullis PR, Witzigmann D, Li SD. Altering the intra-liver distribution of phospholipid-free small unilamellar vesicles using temperature-dependent size-tunability. J Control Release 2021; 333:151-161. [PMID: 33771624 DOI: 10.1016/j.jconrel.2021.03.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 03/09/2021] [Accepted: 03/21/2021] [Indexed: 12/22/2022]
Abstract
We demonstrated that phospholipid-free small unilamellar vesicles (PFSUVs) composed of TWEEN 80 and cholesterol (25/75, mol%) could be fabricated using a staggered herringbone micromixer with precise controlling of their mean size between 54 nm and 147 nm. Increasing the temperature or decreasing the flow rate led to an increase in the resulting particle diameter. In zebrafish embryos, 120-nm PFSUVs showed 3-fold higher macrophage clearance compared to the 60-nm particles, which exhibited prolonged blood circulation. In mice, the 60-nm particles showed dominant accumulation in the liver hepatocytes (66% hepatocytes positive), while the 120-nm particles were delivered equally to the liver and spleen macrophages. Accordingly, in a murine model of acetaminophen-induced hepatotoxicity the 60-nm particles loaded with chlorpromazine reduced the serum alanine aminotransferase level and liver necrosis 2- to 4-fold more efficiently than their 120-nm counterparts and the free drug, respectively. This work showed that the intra-liver distribution of PFSUVs was largely determined by the size. Most other nanoparticles published to date are predominantly cleared by the liver Kupffer cells. The 60-nm PFSUVs, on the other hand, focused the delivery to the hepatocytes with significant advantages for the therapy of liver diseases.
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Affiliation(s)
- Julian Vogler
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Roland Böttger
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Nojoud Al Fayez
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Wunan Zhang
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Zhu Qin
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Lukas Hohenwarter
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Po-Han Chao
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Elham Rouhollahi
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Nida Bilal
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Naliangzi Chen
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Brandon Lee
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Christine Chen
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Brayden Wilkinson
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Timothy J Kieffer
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Jayesh A Kulkarni
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; NanoMedicines Innovation Network (NMIN), University of British Columbia, Vancouver, BC, Canada
| | - Pieter R Cullis
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; NanoMedicines Innovation Network (NMIN), University of British Columbia, Vancouver, BC, Canada
| | - Dominik Witzigmann
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; NanoMedicines Innovation Network (NMIN), University of British Columbia, Vancouver, BC, Canada
| | - Shyh-Dar Li
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; NanoMedicines Innovation Network (NMIN), University of British Columbia, Vancouver, BC, Canada.
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11
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A/J mice are more susceptible than C57BL/6 to acetaminophen-induced hepatotoxicity. J Pharmacol Toxicol Methods 2021; 108:106960. [PMID: 33766729 DOI: 10.1016/j.vascn.2021.106960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/02/2021] [Accepted: 02/28/2021] [Indexed: 11/20/2022]
Abstract
Acetaminophen (APAP) is commonly used to treat fever and pain. However, when in overdose is the predominant cause of hepatotoxicity. Despite advances in understanding the mechanisms of APAP-induced hepatotoxicity, the management of acute liver failure remains a challenge. Thus, more relevant experimental models are crucial to provide a better understanding of this condition. The aim of this study is to evaluate the effect of APAP-induced hepatotoxicity on A/J mice using C57BL/6 as reference experimental model. Eight- to ten-week-old male A/J and C57BL/6 mice were treated with APAP (300 or 500 mg/kg) by intraperitoneal injection. After 24 h total blood leukocyte counting, plasma levels of alanine amino transferase (ALT) and aspartate amino transferase (AST), histopathological analysis of liver, lung and kidney were evaluated. A/J mice presented reduction in circulating leukocytes concomitant with the increase in plasma levels of ALT and AST, and liver necrosis when treated with 300 and 500 mg/kg of APAP. C57BL/6 mice presented similar results only with 500 mg/kg of APAP. Our results show that A/J mice have a marked susceptibility to the effects of APAP and could be considered as an experimental model to study APAP-induced toxicity.
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12
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A Potential Role for Mitochondrial DNA in the Activation of Oxidative Stress and Inflammation in Liver Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020. [PMID: 32393967 PMCID: PMC7683147 DOI: 10.1155/2020/5835910] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mitochondria are organelles that are essential for cellular homeostasis including energy harvesting through oxidative phosphorylation. Mitochondrial dysfunction plays a vital role in liver diseases as it produces a large amount of reactive oxygen species (ROS), in turn leading to further oxidative damage to the structure and function of mitochondria and other cellular components. More severe oxidative damage occurred in mitochondrial DNA (mtDNA) than in nuclear DNA. mtDNA dysfunction results in further oxidative damage as it participates in encoding respiratory chain polypeptides. In addition, mtDNA can leave the mitochondria and enter the cytoplasm and extracellular environment. mtDNA is derived from ancient bacteria, contains many unmethylated CpG dinucleotide repeats similar to bacterial DNA, and thus can induce inflammation to exacerbate damage to liver cells and distal organs by activating toll-like receptor 9, inflammatory bodies, and stimulator of interferon genes (STING). In this review, we focus on the mechanism by which mtDNA alterations cause liver injuries, including nonalcoholic fatty liver, alcoholic liver disease, drug-induced liver injury, viral hepatitis, and liver cancer.
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Schmidt U, Rein T. Novel treatment targets for COVID-19: Contribution from molecular psychiatry. World J Biol Psychiatry 2020; 21:572-575. [PMID: 32619139 DOI: 10.1080/15622975.2020.1779344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ulrike Schmidt
- Klinik für Psychiatrie und Psychotherapie, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany.,Klinik für Psychiatrie und Psychotherapie, Georg-August Universität Göttingen, Göttingen, Germany
| | - Theo Rein
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
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Si-Wu-Tang Alleviates Nonalcoholic Fatty Liver Disease via Blocking TLR4-JNK and Caspase-8-GSDMD Signaling Pathways. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:8786424. [PMID: 32849904 PMCID: PMC7439165 DOI: 10.1155/2020/8786424] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/02/2020] [Indexed: 12/17/2022]
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) has high global prevalence; however, the treatments of NAFLD are limited due to lack of approved drugs. Methods Mice were randomly assigned into three groups: Control group, NAFLD group, NAFLD plus Si-Wu-Tang group. A NAFLD mice model was established by feeding with a methionine- and choline-deficient (MCD) diet for four weeks. Si-Wu-Tang was given orally by gastric gavage at the beginning of 3rd week, and it lasted for two weeks. The treatment effects of Si-Wu-Tang were confirmed by examining the change of body weight, serum alanine aminotransferase (ALT) and aspartate transaminase (AST) levels, Oil Red O staining, and hematoxylin and eosin (H&E) staining of the liver samples and accompanied by steatosis grade scores. The expression and activation of the possible signaling proteins involved in the pathogenesis of NAFLD were determined by western blotting. Results Mice fed with four weeks of MCD diet displayed elevated serum levels of ALT and AST, while there was decreased body weight. The hepatic Oil Red O staining and H&E staining showed severe liver steatosis with high steatosis grade scores. All these can be improved by treating with Si-Wu-Tang for two weeks. Mechanistically, the increased hepatic TLR4 expression and its downstream JNK phosphorylation induced by MCD diet were suppressed by Si-Wu-Tang. Moreover, the upregulations of Caspase-8, gasdermin D (GSDMD), and cleaved-GSDMD in liver mediated by MCD diet were all inhibited by Si-Wu-Tang. Conclusions Treatment with Si-Wu-Tang improves MCD diet-induced NAFLD in part via blocking TLR4-JNK and Caspase-8-GSDMD signaling pathways, suggesting that Si-Wu-Tang has potential for clinical application in treating NAFLD.
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15
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Hu C, Zhao L, Shen M, Wu Z, Li L. Autophagy regulation is an effective strategy to improve the prognosis of chemically induced acute liver injury based on experimental studies. J Cell Mol Med 2020; 24:8315-8325. [PMID: 32627386 PMCID: PMC7412417 DOI: 10.1111/jcmm.15565] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/25/2020] [Accepted: 06/16/2020] [Indexed: 12/12/2022] Open
Abstract
Acute liver injury (ALI) induced by chemicals in current experimental studies is characterized by inflammation, oxidative stress and necrosis, which can greatly influence the long-term outcome and lead to liver failure. In liver cells, different autophagy forms envelop cytoplasm components, including proteins, endoplasmic reticulum (ER), mitochondria and lipids, and they effectively participate in breaking down the cargo enclosed inside lysosomes to replenish cellular energy and contents. In general, autophagy serves as a cell survival mechanism in stressful microenvironments, but it also serves as a destructive mechanism that results in cell death in vitro and in vivo. In experimental animals, multiple chemicals are used to mimic ALI in patients to clarify the potential pathological mechanisms and develop effective strategies in the clinic. In this review, we summarize related publications about autophagy modulation to attenuate chemically induced ALI in vitro and in vivo. We also analysed the underlying mechanisms of autophagy regulators and genetic modifications to clarify how to control autophagy to protect against chemically induced ALI in animal models. We anticipate that selectively controlling the dual effects of hepatic autophagy will help to protect against ALI in various animals, but the detailed mechanisms and effects should be determined further in future studies. In this way, we are more confident that modulating autophagy in liver regeneration can improve the prognosis of ALI.
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Affiliation(s)
- Chenxia Hu
- Collaborative Innovation Center for the Diagnosis and Treatment of Infectious DiseasesState Key Laboratory for the Diagnosis and Treatment of Infectious DiseasesThe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouPR China
- National Clinical Research Center for Infectious DiseasesThe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouPR China
| | - Lingfei Zhao
- Key Laboratory of Kidney Disease Prevention and Control TechnologyKidney Disease CenterInstitute of NephrologyFirst Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhouPR China
| | - Miaoda Shen
- Department of OrthopedicsThe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouPR China
| | - Zhongwen Wu
- Collaborative Innovation Center for the Diagnosis and Treatment of Infectious DiseasesState Key Laboratory for the Diagnosis and Treatment of Infectious DiseasesThe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouPR China
- National Clinical Research Center for Infectious DiseasesThe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouPR China
| | - Lanjuan Li
- Collaborative Innovation Center for the Diagnosis and Treatment of Infectious DiseasesState Key Laboratory for the Diagnosis and Treatment of Infectious DiseasesThe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouPR China
- National Clinical Research Center for Infectious DiseasesThe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouPR China
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Xuan W, Song D, Yan Y, Yang M, Sun Y. Police Violence among Adults Diagnosed with Mental Disorders. HEALTH & SOCIAL WORK 2020; 45:81-89. [PMID: 32393967 PMCID: PMC7683147 DOI: 10.1093/hsw/hlaa003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/25/2019] [Accepted: 05/15/2019] [Indexed: 06/11/2023]
Abstract
Police violence is reportedly common among those diagnosed with mental disorders characterized by the presence of psychotic symptoms or pronounced emotional lability. Despite the perception that people with mental illness are disproportionately mistreated by the police, there is relatively little empirical research on this topic. A cross-sectional general population survey was administered online in 2017 to 1,000 adults in two eastern U.S. cities to examine the relationship between police violence exposure, mental disorders, and crime involvement. Results from hierarchical logistic regression and mediation analyses revealed that a range of mental health conditions are broadly associated with elevated risk for police violence exposure. Individuals with severe mental illness are more likely than the general population to be physically victimized by police, regardless of their involvement in criminal activities. Most of the excess risk of police violence exposure related to common psychiatric diagnoses was explained by confounding factors including crime involvement. However, crime involvement may necessitate more police contact, but does not necessarily justify victimization or excessive force (particularly sexual and psychological violence). Findings support the need for adequate training for police officers on how to safely interact with people with mental health conditions, particularly severe mental illness.
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Affiliation(s)
- Wei Xuan
- Department of Hepatopancreaticobiliary Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Dandan Song
- Department of Clinical Laboratory, Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun 130041, China
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Youyou Yan
- Department of Cardiology, Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun 130041, China
| | - Ming Yang
- Department of Molecular Biology, College of Basic Medical Sciences, No. 126 Xinmin Street, Changchun 130041, China
| | - Yan Sun
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun 130033, China
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Altered gut-liver axis in liver diseases. LIVER RESEARCH 2019. [DOI: 10.1016/j.livres.2019.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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