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El-Mahdy NA, El-Masry TA, El-Tarahony AM, Alherz FA, Osman EY. Hepatoprotective Effect of Camel Thorn Polyphenols in Concanavalin A-Induced Hepatitis in Mice. Chin J Integr Med 2024:10.1007/s11655-024-3808-3. [PMID: 39298072 DOI: 10.1007/s11655-024-3808-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2024] [Indexed: 09/21/2024]
Abstract
OBJECTIVES To explore the prophylactic and therapeutic effects of Alhagi maurorum ethanolic extract (AME) in concanavalin A (Con A)-induced hepatitis (CIH) as well as possible underlying mechanisms. METHODS Polyphenols in AME were characterized using high performance liquid chromatography (HPLC). Swiss albino mice were divided into 4 groups. Normal group received intravenous phosphate-buffered saline (PBS); Con A group received 40 mg/kg intravenous Con A. Prophylaxis group administered 300 mg/(kg·d) AME orally for 5 days before Con A intervention. Treatment group received intravenous Con A then administered 300 mg/kg AME at 30 min and 3 h after Con A intervention. After 24 h of Con A injection, hepatic injury, oxidative stress, and inflammatory mediators were assessed. Histopathological examination and markers of apoptosis, inflammation, and CD4+ cell infiltration were also investigated. RESULTS HPLC analysis revealed that AME contains abundant polyphenols with pharmacological constituents, such as ellagic acid, gallic acid, ferulic acid, methylgallate, and naringenin. AME alleviated Con A-induced hepatic injury, as manifested by a significant reduction in alanine aminotransferase, aspartate aminotransferase and alkaline phosphatase (P<0.01). Additionally, the antioxidant effect of AME was revealed by a significant reduction in oxidative stress markers (nitric oxide and malondialdehyde) and restored glutathione (P<0.01). The levels of proinflammatory cytokines (tumor necrosis factor-α, interferon-γ, and interleukin-6) and c-Jun N-terminal kinase (JNK) activity were reduced (P<0.01). Histopathological examination of liver tissue showed that AME significantly ameliorated necrotic and inflammatory lesions induced by Con A (P<0.01). Moreover, AME reduced the expression of nuclear factor kappa B, pro-apoptotic protein (Bax), caspase-3, and CD4+ T cell hepatic infiltration (P<0.01). The expression of anti-apoptotic protein Bcl-2 was increased (P<0.01). CONCLUSION AME has hepatoprotective and ameliorative effects in CIH mice. These beneficial effects are likely due to the anti-inflammatory, antioxidant, and anti-apoptotic effects of the clinically important polyphenolic content. AME could be a novel and promising hepatoprotective agent for managing immune-mediated hepatitis.
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Affiliation(s)
- Nageh Ahmed El-Mahdy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
| | - Thanaa Ahmed El-Masry
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
| | - Ahmed Mahmoud El-Tarahony
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt.
| | - Fatemah A Alherz
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Enass Youssef Osman
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
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Üremiş N, Aslan M, Taşlidere E, Gürel E. Dexpanthenol exhibits antiapoptotic and anti-inflammatory effects against nicotine-induced liver damage by modulating Bax/Bcl-xL, Caspase-3/9, and Akt/NF-κB pathways. J Biochem Mol Toxicol 2024; 38:e23622. [PMID: 38229321 DOI: 10.1002/jbt.23622] [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: 08/24/2023] [Revised: 10/13/2023] [Accepted: 12/14/2023] [Indexed: 01/18/2024]
Abstract
Chronic tobacco use can lead to liver damage and inflammation due to the accumulation of various toxins in the body. This study aimed to investigate the correlation between the molecular mechanisms of nicotine-induced liver injury, the caspase cascade, and the Akt/NF-κB signaling pathway, as well as the protective effects of dexpanthenol (DEX). Male rats were subjected to intraperitoneal injections of nicotine at a concentration of 0.5 mg/kg/day and/or DEX at a concentration of 500 mg/kg/day for 8 weeks. After the treatment period, liver function tests were conducted on serum samples, and tissue samples were analyzed for protein levels of Akt, NF-κB, Bax, Bcl-xL, Caspase-3, and Caspase-9, along with histopathological changes. Additionally, assessments of oxidative stress markers and proinflammatory cytokines were carried out. Nicotine administration led to elevated levels of IL-6, IL-1β, MDA, TOS, and oxidative stress index, accompanied by decreased TAS levels. Moreover, nicotine exposure reduced the p-Akt/Akt ratio, increased NF-κB, Bax, Caspase-3, and Caspase-9 protein levels, and decreased the antiapoptotic protein Bcl-xL levels. DEX treatment significantly mitigated these effects, restoring the parameters to levels comparable to those of the control group. Nicotine-induced liver injury resulted in oxidative stress, inflammation, and apoptosis, mediated by Bax/Bcl-xL, Caspase-3, Caspase-9, and Akt/NF-κB pathways. Conversely, DEX effectively attenuated nicotine-induced liver injury by modulating apoptosis through NF-κB, Caspase-3, Caspase-9, Bax inhibition, and Bcl-xL activation.
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Affiliation(s)
- Nuray Üremiş
- Department of Medical Biochemistry, Medical Faculty, Inonu University, Malatya, Turkey
| | - Meral Aslan
- Department of Medical Biochemistry, Medical Faculty, Inonu University, Malatya, Turkey
| | - Elif Taşlidere
- Department of Histology and Embryology, Medical Faculty, Inonu University, Malatya, Turkey
| | - Elif Gürel
- Department of Medical Biochemistry, Medical Faculty, Inonu University, Malatya, Turkey
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Zhao J, Jeong H, Yang D, Tian W, Kim JW, Woong Lim C, Kim B. Toll-like receptor-7 signaling in Kupffer cells exacerbates concanavalin A-induced liver injury in mice. Int Immunopharmacol 2023; 119:110238. [PMID: 37126986 DOI: 10.1016/j.intimp.2023.110238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 04/19/2023] [Accepted: 04/21/2023] [Indexed: 05/03/2023]
Abstract
Concanavalin A (ConA) is a plant lectin that can induce immune-mediated liver damage. ConA induced liver damage animal model is a widely accepted model that can mimic clinical acute hepatitis and immune-mediated liver injury in humans. Toll-like receptor-7 (TLR7), a member of the TLR family, plays a key role in pathogen recognition and innate immune activation. The aim of this study was to examine the role of TLR7 in the pathogenesis of ConA-induced liver injury. Acute liver injury was induced by intravenous injection with ConA in WT (wild-type) and TLR7 knockout (KO) mice. Results showed that attenuated liver injury in TLR7-deficient mice, as indicated by increased survival rate, decreased aminotransferase levels, and reduced pathological lesions, was associated with decreased release of pro-inflammatory cytokines in livers. Consistently, significantly decreased proliferation of CD4+ T cell was detected in ConA-stimulated TLR7-deficient splenocytes, but not in CD3/CD28 stimulated TLR7-deficient CD4+ T cells. Moreover, TLR7 deficiency in KCs specifically suppressed the expression of TNF-α (tumor necrosis factor-α). Depletion of KCs abolished the detrimental role of TLR7 in ConA-induced liver injury. Taken together, these results demonstrate that TLR7 can regulate the expression of TNF-α in KCs, which is necessary for the full progression of ConA-induced liver injury.
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Affiliation(s)
- Jing Zhao
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China; Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea.
| | - Hyuneui Jeong
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea.
| | - Daram Yang
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea.
| | - Weishun Tian
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China.
| | - Jong-Won Kim
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea.
| | - Chae Woong Lim
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea.
| | - Bumseok Kim
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea.
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Gao Q, Bi P, Mi Q, Guan Y, Jiang J, Li X, Yang B. Effect of nicotine on cholesterol gallstone formation in C57BL/6J mice fed on a lithogenic diet. Exp Ther Med 2023; 25:84. [PMID: 36684657 PMCID: PMC9849855 DOI: 10.3892/etm.2023.11783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/21/2022] [Indexed: 01/04/2023] Open
Abstract
Gallstones are diseases of the biliary system caused by cholesterol supersaturation and/or deficiency in bile salts in bile. Early studies have shown that symptomatic gallstones are primarily a disease of non-smokers, raising the possibility that nicotine can prevent gallstone formation. The present study investigated the effect of nicotine on the formation of cholesterol gallstone in C57BL/6J mice. C57BL/6J mice (eight-weeks-old) were fed a normal or lithogenic diet (basic feed 82.45%, fat 15.8%, cholesterol 1.25% and sodium cholate 0.5%) and divided into five groups: normal diet (ND); ND + high dose nicotine (H); lithogenic diet (LD); LD + low dose nicotine (L) and LD + nicotine (H). They were treated with or without nicotine injection for 10 weeks. Nicotine treatment did not change the rate of cholesterol gallstone formation. There was no difference in TNFα, IL-1β and IL-6 among the five groups. The LD group showed the highest cholesterol levels and there was significant suppression of the total cholesterol, low-density lipoprotein-cholesterol and total bile acid levels in the serum of the nicotine-treated mice. Quantitative PCR showed nicotine altered few bile acid metabolism-related genes expression in liver tissue and significantly altered cholesterol-metabolism genes in gallbladder tissue. Hematoxylin and eosin staining and western blotting showed that protein levels of farnesoid X receptor (FXR) and megalin in the gallbladder increased in the lithogenic-diet mice, which was significantly suppressed in the nicotine-treated mice. In vitro studies using gallbladder epithelial cells showed that chenodeoxycholic acids increased megalin expression, which could be attenuated by nicotine. Nicotine could regulate bile acid metabolism via the FXR-megalin/cubilin pathways, which potentially contribute to cholesterol nucleation and subsequent gallstone formation.
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Affiliation(s)
- Qian Gao
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tobacco Yunnan Industrial Co. Ltd., Kunming, Yunnan 650106, P.R. China
| | - Pinduan Bi
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Qili Mi
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tobacco Yunnan Industrial Co. Ltd., Kunming, Yunnan 650106, P.R. China
| | - Ying Guan
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tobacco Yunnan Industrial Co. Ltd., Kunming, Yunnan 650106, P.R. China
| | - Jiarui Jiang
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tobacco Yunnan Industrial Co. Ltd., Kunming, Yunnan 650106, P.R. China
| | - Xuemei Li
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tobacco Yunnan Industrial Co. Ltd., Kunming, Yunnan 650106, P.R. China
| | - Bin Yang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China,Correspondence to: Dr Bin Yang, Department of Hepatobiliary Surgery, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Road, Wuhua, Kunming, Yunnan 650032, P.R. China
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Li N, Wu JJ, Qi M, Wang ZY, Zhang SN, Li XQ, Chen TT, Wang MF, Zhang LL, Wei W, Sun WY. CP-25 exerts a protective effect against ConA-induced hepatitis via regulating inflammation and immune response. Front Pharmacol 2022; 13:1041671. [DOI: 10.3389/fphar.2022.1041671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 11/01/2022] [Indexed: 11/17/2022] Open
Abstract
Hepatitis is a complex multifactorial pathological disorder, which can eventually lead to liver failure and even potentially be life threatening. Paeoniflorin-6′-O-benzene sulfonate (CP-25) has proven to have critical anti-inflammatory effects in arthritis. However, the effects of CP-25 in the pathogenesis of hepatitis remains unclear. In this experiment, mice were intragastrically administered with CP-25 (25, 50 and 100 mg/kg), and then ConA (25 mg/kg) was intravenous injected to establish hepatitis model in vivo. CP-25 administration attenuated liver damage and decreased ALT and AST activities in mice with hepatitis. Besides, CP-25 modulated immune responses including down-regulated the proportions of activated CD4+, activated CD8+ T cells, and ratio of Th1/Th2 in ConA-injected mice. Furthermore, ConA-mediated production of reactive oxygen species (ROS), release of inflammatory cytokines including IFN-γ, TNF-α, activation of MAPK pathways and nuclear translocation of nuclear factor-kappaB (NF-κB) were significantly decreased in CP-25 administrated mice. In ConA-stimulated RAW264.7 cells, CP-25 suppressed inflammatory cytokines secretion and reduced ROS level, which were consistent with animal experiments. Otherwise, the data showed that CP-25 restrained phosphorylation of ERK, JNK and p38 MAPK pathways influenced by ROS, accompanied with inhibiting NF-κB nuclear translocation. In conclusion, our findings indicated that CP-25 protected against ConA-induced hepatitis may through modulating immune responses and attenuating ROS-mediated inflammation via the MAPK/NF-κB signaling pathway.
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Shi FL, Ni ST, Luo SQ, Hu B, Xu R, Liu SY, Huang XD, Zeng B, Liang QQ, Chen SY, Qiu JH, He XH, Zha QB, Ouyang DY. Dimethyl fumarate ameliorates autoimmune hepatitis in mice by blocking NLRP3 inflammasome activation. Int Immunopharmacol 2022; 108:108867. [DOI: 10.1016/j.intimp.2022.108867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 05/09/2022] [Accepted: 05/12/2022] [Indexed: 11/05/2022]
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Ye X, Zhang Y, Song X, Liu Q. Research Progress in the Pharmacological Effects and Synthesis of Nicotine. ChemistrySelect 2022. [DOI: 10.1002/slct.202104425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaoping Ye
- Department of Pharmaceutical Engineering College of Chemical Engineering Northwest University Taibai North Road 229 Xi'an 710069 Shaanxi P.R. China
| | - Yanxin Zhang
- Department of Pharmaceutical Engineering College of Chemical Engineering Northwest University Taibai North Road 229 Xi'an 710069 Shaanxi P.R. China
- Glycobiology and Glycotechnology Research center College of Food Science and Technology Northwest University Taibai North Road 229 Xi'an 710069 Shaanxi P.R. China
- College of Life Sciences Northwest University Taibai North Road 229 Xi'an 710069 Shaanxi P.R. China
| | - Xiaoping Song
- Department of Pharmaceutical Engineering College of Chemical Engineering Northwest University Taibai North Road 229 Xi'an 710069 Shaanxi P.R. China
- Shaanxi Key Laboratory of Degradable Biomedical Materials College of Chemical Engineering Northwest University Taibai North Road 229 Xi'an 710069 Shaanxi P.R. China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering College of Chemical Engineering Northwest University Taibai North Road 229 Xi'an 710069 Shaanxi P.R. China
| | - Qingchao Liu
- Department of Pharmaceutical Engineering College of Chemical Engineering Northwest University Taibai North Road 229 Xi'an 710069 Shaanxi P.R. China
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Deng L, Cheng S, Li J, Xu X, Hao X, Fan Y, Mu S. Synthesis and biological evaluation of novel schisanhenol derivatives as potential hepatoprotective agents. Eur J Med Chem 2022; 227:113919. [PMID: 34688010 DOI: 10.1016/j.ejmech.2021.113919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/03/2021] [Accepted: 10/10/2021] [Indexed: 11/28/2022]
Abstract
Twenty-one new schisanhenol derivatives were synthesized, and their hepatoprotective effects against liver injury induced by concanavalin A (Con A) were evaluated in vitro using an MTT assay. The data indicated that most derivatives exhibited equivalent or better protective activity than the positive control (dimethyl dicarboxylate biphenyl, DDB) under the same conditions. Among them, compound 1b showed the most potent hepatoprotective activity against Con A-induced immunological injury. Mechanistic studies in vitro revealed that 1b inhibited cell apoptosis and inflammatory responses caused by Con A treatment via IL-6/JAK2/STAT3 signaling pathway. Consistently, it also exhibited significant hepatoprotective activity in mice with Con A-induced immunological liver injury. These results clearly indicated that 1b might be a highly potent hepatoprotective agent targeting IL-6/STAT3 signaling pathway.
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Affiliation(s)
- Lulu Deng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014, China; The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China
| | - Shasha Cheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014, China; The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China
| | - Jiang Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014, China; The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China
| | - Xinglian Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014, China; The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China
| | - Xiaojiang Hao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014, China; The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China
| | - Yanhua Fan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014, China; The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China.
| | - Shuzhen Mu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang, 550014, China; The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China.
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Summary of Natural Products Ameliorate Concanavalin A-Induced Liver Injury: Structures, Sources, Pharmacological Effects, and Mechanisms of Action. PLANTS 2021; 10:plants10020228. [PMID: 33503905 PMCID: PMC7910830 DOI: 10.3390/plants10020228] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/18/2021] [Accepted: 01/21/2021] [Indexed: 12/11/2022]
Abstract
Liver diseases represent a threat to human health and are a significant cause of mortality and morbidity worldwide. Autoimmune hepatitis (AIH) is a progressive and chronic hepatic inflammatory disease, which may lead to severe complications. Concanavalin A (Con A)-induced hepatic injury is regarded as an appropriate experimental model for investigating the pathology and mechanisms involved in liver injury mediated by immune cells as well as T cell-related liver disease. Despite the advances in modern medicine, the only available strategies to treat AIH, include the use of steroids either solely or with immunosuppressant drugs. Unfortunately, this currently available treatment is associated with significant side-effects. Therefore, there is an urgent need for safe and effective drugs to replace and/or supplement those in current use. Natural products have been utilized for treating liver disorders and have become a promising therapy for various liver disorders. In this review, the natural compounds and herbal formulations as well as extracts and/or fractions with protection against liver injury caused by Con A and the underlying possible mechanism(s) of action are reviewed. A total of 53 compounds from different structural classes are discussed and over 97 references are cited. The goal of this review is to attract the interest of pharmacologists, natural product researchers, and synthetic chemists for discovering novel drug candidates for treating immune-mediated liver injury.
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Xie H, Yepuri N, Meng Q, Dhawan R, Leech CA, Chepurny OG, Holz GG, Cooney RN. Therapeutic potential of α7 nicotinic acetylcholine receptor agonists to combat obesity, diabetes, and inflammation. Rev Endocr Metab Disord 2020; 21:431-447. [PMID: 32851581 PMCID: PMC7572644 DOI: 10.1007/s11154-020-09584-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/21/2020] [Indexed: 12/12/2022]
Abstract
The cholinergic anti-inflammatory reflex (CAIR) represents an important homeostatic regulatory mechanism for sensing and controlling the body's response to inflammatory stimuli. Vagovagal reflexes are an integral component of CAIR whose anti-inflammatory effects are mediated by acetylcholine (ACh) acting at α7 nicotinic acetylcholine receptors (α7nAChR) located on cells of the immune system. Recently, it is appreciated that CAIR and α7nAChR also participate in the control of metabolic homeostasis. This has led to the understanding that defective vagovagal reflex circuitry underlying CAIR might explain the coexistence of obesity, diabetes, and inflammation in the metabolic syndrome. Thus, there is renewed interest in the α7nAChR that mediates CAIR, particularly from the standpoint of therapeutics. Of special note is the recent finding that α7nAChR agonist GTS-21 acts at L-cells of the distal intestine to stimulate the release of two glucoregulatory and anorexigenic hormones: glucagon-like peptide-1 (GLP-1) and peptide YY (PYY). Furthermore, α7nAChR agonist PNU 282987 exerts trophic factor-like actions to support pancreatic β-cell survival under conditions of stress resembling diabetes. This review provides an overview of α7nAChR function as it pertains to CAIR, vagovagal reflexes, and metabolic homeostasis. We also consider the possible usefulness of α7nAChR agonists for treatment of obesity, diabetes, and inflammation.
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Affiliation(s)
- Han Xie
- Departments of Surgery, State University of New York (SUNY), Upstate Medical University, 750 E Adams St., Suite 8141, Syracuse, NY, 13210, USA
| | - Natesh Yepuri
- Departments of Surgery, State University of New York (SUNY), Upstate Medical University, 750 E Adams St., Suite 8141, Syracuse, NY, 13210, USA
| | - Qinghe Meng
- Departments of Surgery, State University of New York (SUNY), Upstate Medical University, 750 E Adams St., Suite 8141, Syracuse, NY, 13210, USA
| | - Ravi Dhawan
- Departments of Surgery, State University of New York (SUNY), Upstate Medical University, 750 E Adams St., Suite 8141, Syracuse, NY, 13210, USA
| | - Colin A Leech
- Departments of Surgery, State University of New York (SUNY), Upstate Medical University, 750 E Adams St., Suite 8141, Syracuse, NY, 13210, USA
| | - Oleg G Chepurny
- Departments of Medicine, State University of New York (SUNY), Upstate Medical University, Syracuse, NY, USA
| | - George G Holz
- Departments of Medicine, State University of New York (SUNY), Upstate Medical University, Syracuse, NY, USA
| | - Robert N Cooney
- Departments of Surgery, State University of New York (SUNY), Upstate Medical University, 750 E Adams St., Suite 8141, Syracuse, NY, 13210, USA.
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Zhao J, Kim JW, Zhou Z, Qi J, Tian W, Lim CW, Han KM, Kim B. Macrophage-Inducible C-Type Lectin Signaling Exacerbates Acetaminophen-Induced Liver Injury by Promoting Kupffer Cell Activation in Mice. Mol Pharmacol 2020; 99:92-103. [PMID: 33262251 DOI: 10.1124/molpharm.120.000043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 11/18/2020] [Indexed: 02/06/2023] Open
Abstract
Overdose of acetaminophen (APAP) has become one of the most frequent causes of acute liver failure. Macrophage-inducible C-type lectin (Mincle) acts as a key moderator in immune responses by recognizing spliceosome-associated protein 130 (SAP130), which is an endogenous ligand released by necrotic cells. This study aims to explore the function of Mincle in APAP-induced hepatotoxicity. Wild-type (WT) and Mincle knockout (KO) mice were used to induce acute liver injury by injection of APAP. The hepatic expressions of Mincle, SAP130, and Mincle signaling intermediate (Syk) were markedly upregulated after the APAP challenge. Mincle KO mice showed attenuated injury in the liver, as shown by reduced pathologic lesions, decreased alanine aminotransferase and aspartate aminotransferase levels, downregulated levels of inflammatory cytokines, and decreased neutrophil infiltration. Consistently, inhibition of Syk signaling by GS9973 alleviated APAP hepatotoxicity. Most importantly, Kupffer cells (KCs) were found as the major cellular source of Mincle. The depletion of KCs abolished the detrimental role of Mincle, and the adoptive transfer of WT KC to Mincle KO mice partially reversed the hyporesponsiveness to hepatotoxicity induced by APAP. Furthermore, the expression levels of interleukin (IL)-1β and neutrophil-attractant CXC chemokines were substantially lower in KCs isolated from APAP-treated Mincle KO mice compared with those from WT mice. Similar results were found in primary Mincle KO KCs treated with a ligand of Mincle (trehalose-6,6-dibehenate) or in conditioned media obtained from APAP-treated hepatocytes. Collectively, Mincle can regulate the inflammatory response of KCs, which is necessary for the complete progression of hepatotoxicity induced by APAP. SIGNIFICANCE STATEMENT: Acetaminophen (APAP) overdose is becoming a main cause of drug-induced acute liver damage in the developed world. This study showed that macrophage-inducible C-type lectin (Mincle) deletion or inhibition of Mincle downstream signaling attenuates APAP hepatotoxicity. Furthermore, Mincle as a modulator of Kupffer cell activation contributes to the full process of hepatotoxicity induced by APAP. This mechanism will offer valuable insights to overcome the limitation of APAP hepatotoxicity treatment.
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Affiliation(s)
- Jing Zhao
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Jong-Won Kim
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Zixiong Zhou
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Jing Qi
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Weishun Tian
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Chae Woong Lim
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Kang Min Han
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Bumseok Kim
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
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Yang H, Guo J, Jin W, Chang C, Guo X, Xu C. A combined proteomic and metabolomic analyses of the priming phase during rat liver regeneration. Arch Biochem Biophys 2020; 693:108567. [PMID: 32898568 DOI: 10.1016/j.abb.2020.108567] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/17/2020] [Accepted: 08/27/2020] [Indexed: 01/07/2023]
Abstract
By comparing differentially abundant proteins and metabolites, the protein expression, metabolic changes and metabolic regulation mechanisms during the priming phase of liver regeneration (LR) were investigated. We combined proteomic analysis via isobaric tags for relative and absolute quantification (iTRAQ) with metabolomic analysis via nontargeted liquid chromatography-mass spectrometry (LC-MS). LC-MS was used to examine 29 energy metabolites expression alterations in targeted metabolomics. A total number of 441 differentially expressed proteins and 65 metabolites were identified. PSMB10, PSMB5, RCG_63409, PSME4 and PSMB7 were key node proteins, these proteins are involved in the proteasome pathway. The most strongly enriched transcription factor motif was TP63. These results point out a critical role of the proteasome pathway (defense mechanisms) and of TP63 (metabolic regulator) as the key transcription factor during the priming phase of LR. Metabolomic and metabolite analysis showed that profiling indicates upregulation of arginine biosynthesis and glycolysis as the main ATP-delivering pathway. Integrative proteomic and metabolomic analysis showed that biomolecular changes were primarily related to the neurological disease, cell death and survival and cell morphology. What's more, neurotransmitters may play an important role in the regulation of LR.
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Affiliation(s)
- Hui Yang
- College of Life Science, Henan Normal University, Xinxiang, 453007, China; State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, China
| | - Jianlin Guo
- College of Life Science, Henan Normal University, Xinxiang, 453007, China; State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, China
| | - Wei Jin
- College of Life Science, Henan Normal University, Xinxiang, 453007, China; State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, China
| | - Cuifang Chang
- College of Life Science, Henan Normal University, Xinxiang, 453007, China; State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, China
| | - Xueqiang Guo
- College of Life Science, Henan Normal University, Xinxiang, 453007, China; State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, China
| | - Cunshuan Xu
- College of Life Science, Henan Normal University, Xinxiang, 453007, China; State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, China.
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