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Galvão FHF, Traldi MCC, Araújo RSS, Stefano JT, D'Albuquerque LAC, Oliveira CP. PRECLINICAL MODELS OF LIVER CÂNCER. ARQUIVOS DE GASTROENTEROLOGIA 2023; 60:383-392. [PMID: 37792769 DOI: 10.1590/s0004-2803.230302023-58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 05/25/2023] [Indexed: 10/06/2023]
Abstract
•In this review, we described different murine models of carcinogenesis: classic models, new transgenic and combined models, that reproduce the key points for HCC and CCA genesis allowing a better understanding of its genetic physiopathological, and environmental abnormalities. •Each model has its advantages, disadvantages, similarities, and differences with the corresponding human disease and should be chosen according to the specificity of the study. Ultimately, those models can also be used for testing new anticancer therapeutic approaches. •Cholangiocarcinoma has been highlighted, with an increase in prevalence. This review has an important role in understanding the pathophysiology and the development of new drugs. Background - This manuscript provides an overview of liver carcinogenesis in murine models of hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA). Objective - A review through MEDLINE and EMBASE was performed to assess articles until August 2022.Methods - Search was conducted of the entire electronic databases and the keywords used was HCC, CCA, carcinogenesis, animal models and liver. Articles exclusion was based on the lack of close relation to the subject. Carcinogenesis models of HCC include HCC induced by senescence in transgenic animals, HCC diet-induced, HCC induced by chemotoxicagents, xenograft, oncogenes, and HCC in transgenic animals inoculated with B and C virus. The models of CCA include the use of dimethylnitrosamine (DMN), diethylnitrosamine (DEN), thioacetamide (TAA), and carbon tetrachloride (CCl4). CCA murine models may also be induced by: CCA cells, genetic manipulation, Smad4, PTEN and p53 knockout, xenograft, and DEN-left median bile duct ligation. Results - In this review, we described different murine models of carcinogenesis that reproduce the key points for HCC and CCA genesis allowing a better understanding of its genetic, physiopathological, and environmental abnormalities. Conclusion - Each model has its advantages, disadvantages, similarities, and differences with the corresponding human disease and should be chosen according to the specificity of the study. Ultimately, those models can also be used for testing new anticancer therapeutic approaches.
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Affiliation(s)
- Flávio Henrique Ferreira Galvão
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Departamento de Gastroenterologia, São Paulo, SP, Brasil
- Laboratório de Transplante e Cirurgia do Fígado (LIM-37), São Paulo, SP, Brasil
| | - Maria Clara Camargo Traldi
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Departamento de Gastroenterologia, São Paulo, SP, Brasil
- Laboratório de Transplante e Cirurgia do Fígado (LIM-37), São Paulo, SP, Brasil
| | | | - Jose Tadeu Stefano
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Departamento de Gastroenterologia, São Paulo, SP, Brasil
- Laboratório de Gastroenterologia Clínica e Experimental (LIM-07), São Paulo, SP, Brasil
| | - Luiz Augusto Carneiro D'Albuquerque
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Departamento de Gastroenterologia, São Paulo, SP, Brasil
- Laboratório de Transplante e Cirurgia do Fígado (LIM-37), São Paulo, SP, Brasil
| | - Claudia P Oliveira
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Departamento de Gastroenterologia, São Paulo, SP, Brasil
- Laboratório de Gastroenterologia Clínica e Experimental (LIM-07), São Paulo, SP, Brasil
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Lan R, Li Y, Zhao X, Shen R, Wang R, Mao R, Guo S. Low-Molecular-Weight Chondroitin Sulfates Alleviate Simulated Microgravity-Induced Oxidative Stress and Bone Loss in Mice. Curr Issues Mol Biol 2023; 45:4214-4227. [PMID: 37232737 PMCID: PMC10217679 DOI: 10.3390/cimb45050268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/13/2023] [Accepted: 05/04/2023] [Indexed: 05/27/2023] Open
Abstract
(1) Background: Many studies have shown that microgravity experienced by astronauts or long-term bedridden patients results in increased oxidative stress and bone loss. Low-molecular-weight chondroitin sulfates (LMWCSs) prepared from intact chondroitin sulfate (CS) have been demonstrated to possess good antioxidant and osteogenic activities in vitro. This study aimed to assess the antioxidant activity of the LMWCSs in vivo and evaluate their potential in preventing microgravity-induced bone loss. (2) Methods: we used hind limb suspension (HLS) mice to simulate microgravity in vivo. We investigated the effects of LMWCSs against oxidative stress damage and bone loss in HLS mice and compared the findings with those of CS and a non-treatment group. (3) Results: LMWCSs reduced the HLS-induced oxidative stress level, prevented HLS-induced alterations in bone microstructure and mechanical strength, and reversed changes in bone metabolism indicators in HLS mice. Additionally, LMWCSs downregulated the mRNA expression levels of antioxidant enzyme- and osteogenic-related genes in HLS mice. The results showed that overall effect of LMWCSs was better than that of CS. (4) Conclusions: LMWCSs protect against the bone loss caused by simulated microgravity, which may be related to their ability to reduce oxidative stress. LMWCSs can be envisaged as potential antioxidants and bone loss protective agents in microgravity.
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Affiliation(s)
- Rong Lan
- Beijing Polytechnic Institute, College of Bioengineering, Beijing 100176, China; (R.L.); (X.Z.); (R.S.); (R.W.)
| | - Ye Li
- Beijing Polytechnic Institute, College of Bioengineering, Beijing 100176, China; (R.L.); (X.Z.); (R.S.); (R.W.)
| | - Xinying Zhao
- Beijing Polytechnic Institute, College of Bioengineering, Beijing 100176, China; (R.L.); (X.Z.); (R.S.); (R.W.)
| | - Rong Shen
- Beijing Polytechnic Institute, College of Bioengineering, Beijing 100176, China; (R.L.); (X.Z.); (R.S.); (R.W.)
| | - Ruili Wang
- Beijing Polytechnic Institute, College of Bioengineering, Beijing 100176, China; (R.L.); (X.Z.); (R.S.); (R.W.)
| | - Ruixin Mao
- Department of Environmental Control and Life Support System, China Astronaut Research and Training Center, Beijing 100094, China;
| | - Shuangsheng Guo
- Department of Environmental Control and Life Support System, China Astronaut Research and Training Center, Beijing 100094, China;
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Leng X, Li J, Miao W, Liu Y, Haider MS, Song M, Fang J, Li Q. Comparison of physicochemical characteristics, antioxidant and immunomodulatory activities of polysaccharides from wine grapes. Int J Biol Macromol 2023; 239:124164. [PMID: 37011744 DOI: 10.1016/j.ijbiomac.2023.124164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/05/2023] [Accepted: 03/20/2023] [Indexed: 04/04/2023]
Abstract
In this study, an efficient ultrasonic-assisted extraction method was used for the extraction and optimization of four wine grape polysaccharides. A three-level, three-factor Box Behnken Design combined with the response surface approach was used to optimize the extraction conditions. Their physicochemical properties, molecular structure, antioxidant activity, immunomodulatory activity and hepatoprotective effects were examined and compared. These findings suggest that the four wine grape polysaccharides share similar basic structural features and monosaccharide composition. Furthermore, four wine grape polysaccharides exhibited antioxidant and immunomodulatory activities in a concentration-dependent manner. Moldova (MD) polysaccharide displayed better antioxidant activity and immunomodulatory ability. Furthermore, MD polysaccharide has a significant therapeutic effect on CCl4-induced rat liver injury by improving the antioxidant defense system and inhibiting oxidative stress, indicating that MD has a hepatoprotective effect. Taken together, the MD wine grape polysaccharide may have potential applications in prevention of liver disease in the functional food and pharmaceutical industries.
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Wojdas M, Dąbkowska K, Kuźnik-Trocha K, Wisowski G, Lachór-Motyka I, Komosińska-Vassev K, Olczyk K, Winsz-Szczotka K. Plasma Glycosaminoglycans in Children with Juvenile Idiopathic Arthritis Being Treated with Etanercept as Potential Biomarkers of Joint Dysfunction. Biomedicines 2022; 10:biomedicines10081845. [PMID: 36009392 PMCID: PMC9405228 DOI: 10.3390/biomedicines10081845] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/28/2022] [Accepted: 07/28/2022] [Indexed: 12/12/2022] Open
Abstract
We assessed the effect of two-year etanercept (ETA) therapy on the metabolism of the cartilage extracellular matrix (ECM) in patients with juvenile idiopathic arthritis (JIA). Methods: We performed a quantitative evaluation of glycosaminoglycans (GAGs) (performed by the multistage extraction and purification method) in blood obtained from patients before and during 24 months of ETA treatment, as potential biomarker of joint dysfunction and indicators of biological effectiveness of therapy. Since the metabolism of GAGs is related to the activity of proteolytic enzymes and prooxidant–antioxidant factors, we decided to evaluate the relationship between GAGs and the levels of metalloproteinases (MMP), i.e., MMP-1 and MMP-3 (using immunoenzymatic methods), as well as the total antioxidative status (TAS) (using the colorimetric method) in blood of the JIA patients. Results: When compared to the controls, GAGs and TAS concentrations were significantly lower in patients with an aggressive course of JIA qualified for ETA treatment. MMP-1 and MMP-3 levels were significantly higher versus control values. An anti-cytokine therapy leading to clinical improvement does not lead to the normalization of any of the assessed parameters. GAGs concentration is significantly related to MMP-1, MMP-3, TAS, TOS, and CRP levels. Conclusion: The results of the present study indicate the necessity of constant monitoring of the dynamics of destructive processes of articular cartilage in children with JIA. We suggest that GAGs may be a useful biomarker to assess the clinical status of the extracellular matrix of joints.
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Affiliation(s)
- Magdalena Wojdas
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, ul. Jedności 8, 41-200 Sosnowiec, Poland; (K.D.); (K.K.-T.); (G.W.); (K.K.-V.); (K.O.); (K.W.-S.)
- Correspondence:
| | - Klaudia Dąbkowska
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, ul. Jedności 8, 41-200 Sosnowiec, Poland; (K.D.); (K.K.-T.); (G.W.); (K.K.-V.); (K.O.); (K.W.-S.)
| | - Kornelia Kuźnik-Trocha
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, ul. Jedności 8, 41-200 Sosnowiec, Poland; (K.D.); (K.K.-T.); (G.W.); (K.K.-V.); (K.O.); (K.W.-S.)
| | - Grzegorz Wisowski
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, ul. Jedności 8, 41-200 Sosnowiec, Poland; (K.D.); (K.K.-T.); (G.W.); (K.K.-V.); (K.O.); (K.W.-S.)
| | - Iwona Lachór-Motyka
- Department of Rheumatology, The John Paul II Pediatric Center in Sosnowiec, ul. G. Zapolskiej 3, 41-218 Sosnowiec, Poland;
| | - Katarzyna Komosińska-Vassev
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, ul. Jedności 8, 41-200 Sosnowiec, Poland; (K.D.); (K.K.-T.); (G.W.); (K.K.-V.); (K.O.); (K.W.-S.)
| | - Krystyna Olczyk
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, ul. Jedności 8, 41-200 Sosnowiec, Poland; (K.D.); (K.K.-T.); (G.W.); (K.K.-V.); (K.O.); (K.W.-S.)
| | - Katarzyna Winsz-Szczotka
- Department of Clinical Chemistry and Laboratory Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, ul. Jedności 8, 41-200 Sosnowiec, Poland; (K.D.); (K.K.-T.); (G.W.); (K.K.-V.); (K.O.); (K.W.-S.)
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Nutrition, Bioactive Components, and Hepatoprotective Activity of Fruit Vinegar Produced from Ningxia Wolfberry. Molecules 2022; 27:molecules27144422. [PMID: 35889295 PMCID: PMC9319210 DOI: 10.3390/molecules27144422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 02/05/2023] Open
Abstract
Wolfberry (Lycium barbarum L.) is a nutritious and medicinal fruit, and deeply processed products of wolfberry needs to be improved. In this study, nutrition, bioactive compounds, and hepaprotective activity were explored in wolfberry vinegar (WFV). The contents of nutrients including total sugar and protein in WFV samples were 2.46 and 0.27 g/100 mL, respectively. Total phenolic and flavonoid contents in WFV were 2.42 mg GAE/mL and 1.67 mg RE/mL, respectively. p-Hydroxybenzoic acid and m-hydroxycinnamic acid were the main polyphenols in WFV. The antioxidant activity of WFV were 20.176 mM Trolox/L (ABTS), 8.614 mM Trolox/L (FRAP), and 26.736 mM Trolox/L (DPPH), respectively. In addition, WFV treatment effectively alleviated liver injury by improving histopathological changes and reducing liver biochemical indexes in CCl4-treated mice. WFV alleviated oxidative damage by inhibiting oxidative levels and increasing antioxidant levels. These results suggest that WFV can be utilized as a functional food to prevent oxidative liver injury.
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EXTRACELLULAR MATRIX OF RAT LIVER UNDER THE CONDITIONS OF COMBINING SYSTEMIC INFLAMMATORY RESPONSE SYNDROME AND CHRONIC ALCOHOL INTOXICATION. WORLD OF MEDICINE AND BIOLOGY 2022. [DOI: 10.26724/2079-8334-2022-1-79-214-217] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhang J, Zhang MK, Ma HM, Song XC, Wu YN, Zhang R, He LL, Ye XH, Gao MX, Li X. C6orf120 gene deficiency may be vulnerable to carbon tetrachloride induced acute hepatic injury in rats. Arch Med Sci 2022; 18:1626-1637. [PMID: 36457959 PMCID: PMC9710269 DOI: 10.5114/aoms.2020.93214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 10/14/2019] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The function of the C6orf120 gene, which encodes an N-glycosylated protein, remains unknown. The study was performed to characterize the utility of the C6orf120 gene in carbon tetrachloride-induced acute liver injury and to elucidate the potential underlying mechanisms by establishing a C6orf120 gene-knockout (C6orf120-/-) rat model. MATERIAL AND METHODS C6orf120-/- and wild-type (WT) rats were intraperitoneally administered with CCl4 (1 : 1 v/v in olive oil, 2 µl/g). Rats were sacrificed 24 h after CCl4 administration. Liver tissues were collected for H&E, IHC, qRT-PCR, and Western blot analysis. RESULTS C6orf120 gene deficiency may be vulnerable to CCl4-induced acute liver injury in rats as indicated by the high levels of alanine aminotransferase (WT: 388.7 ±55.96 vs. C6orf120-/-: 915.9 ±118.8, p < 0.001) and greater degree of pathological damage. Quantitative reverse transcription polymerase chain reaction showed that the mRNA levels of inflammation-associated cytokines, such as interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α, in liver tissues were increased in C6orf120-/- rats compared with those in WT rats. Moreover, western blot showed that the protein expression of cytokines nucleotide-binding oligomerization domain leucine rich repeat and pyrin domain containing 3 (NLRP3), caspase-1, IL-1β, nuclear factor-κB, c-Jun N-terminal kinases, and Bax were increased in C6orf120-/- rats compared with those in WT rats. CONCLUSIONS C6orf120-/- rats were susceptible to CCl4-induced liver injury, which may be related to NLRP3 inflammasome and JNK signaling pathway activation.
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Affiliation(s)
- Jian Zhang
- Department of Center of Integrated Traditional Chinese and Western Medicine, Peking University Ditan Teaching Hospital, Beijing, China
| | - Man-ka Zhang
- Department of Center of Integrated Traditional Chinese and Western Medicine, Peking University Ditan Teaching Hospital, Beijing, China
| | - Hui-min Ma
- Department of Center of Integrated Traditional Chinese and Western Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Xin-cheng Song
- Department of Center of Integrated Traditional Chinese and Western Medicine, Peking University Ditan Teaching Hospital, Beijing, China
| | - Yuan-ni Wu
- Department of Center of Integrated Traditional Chinese and Western Medicine, Peking University Ditan Teaching Hospital, Beijing, China
| | - Rui Zhang
- Department of Center of Integrated Traditional Chinese and Western Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ling-ling He
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Xiao-hui Ye
- Department of Gastroenterology, Peking University Ditan Teaching Hospital, Beijing, China
| | - Mei-xin Gao
- Department of Gastroenterology, Peking University Ditan Teaching Hospital, Beijing, China
| | - Xin Li
- Department of Center of Integrated Traditional Chinese and Western Medicine, Peking University Ditan Teaching Hospital, Beijing, China
- Department of Center of Integrated Traditional Chinese and Western Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, China
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Olaseinde OF, Owoyele BV. Chondroitin sulfate produces antinociception and neuroprotection in chronic constriction injury-induced neuropathic pain in rats by increasing anti-inflammatory molecules and reducing oxidative stress. Int J Health Sci (Qassim) 2021; 15:3-17. [PMID: 34548858 PMCID: PMC8434845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVES Damage to the peripheral and central nervous system lead to Neuropathic pain (NP) which is a widespread and devitalizing condition. chondroitin sulfate (CS), has been used in managing joint pain and osteoarthritis. In this study, the effectiveness of CS on NP induced by chronic constriction injury (CCI) is examined. METHODS Thirty Wistar rats were distributed at random into six groups (n = 5). Sciatic nerve ligation was carried out by encircling the nerve with four loose ligatures to induce NP. Allodynia (cold and mechanical) and heat hyperalgesia were assessed using Acetone, von Frey filament and Hot plate tests. CCI induction resulted to NP, prominent from the 3rd day after surgery. Structural architecture of sciatic nerves was evaluated via histological examination of the transverse section of the nerves. RESULTS Oral administration of CS (600 mg/kg and 900 mg/kg for 21 days) resulted in significant (P < 0.05) inhibition of allodynia (cold and mechanical) and thermal hyperalgesia. Lipid peroxidation, tumor necrosis factor-α (TNF-α), calcitonin gene related peptide (CGRP), C reactive protein (CRP), and oxidative stress were attenuated by CS. CS also improved interleukin (IL)-6, nitric oxide (NO), total antioxidant capacity (TAC). CONCLUSION These findings suggest that CS attenuates allodynia, and thermal hyperalgesia induced by CCI by downregulating TNF-α, CRP, CGRP, oxidative enzymes, and upregulating IL-6, NO, and TAC. Nociceptive behavioral studies and histological findings showed significant improvement in the CS treated groups compared to CCI rats. These findings are responsible for the beneficial effect of CS in NP.
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Affiliation(s)
- Olutayo Folajimi Olaseinde
- Department of Physiology, Neuroscience and Inflammation Unit, College of Health Sciences, University of Ilorin, Ilorin, Kwara State, Nigeria
| | - Bamidele Victor Owoyele
- Department of Physiology, Neuroscience and Inflammation Unit, College of Health Sciences, University of Ilorin, Ilorin, Kwara State, Nigeria
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Mishra S, Ganguli M. Functions of, and replenishment strategies for, chondroitin sulfate in the human body. Drug Discov Today 2021; 26:1185-1199. [PMID: 33549530 DOI: 10.1016/j.drudis.2021.01.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/26/2020] [Accepted: 01/28/2021] [Indexed: 02/06/2023]
Abstract
Chondroitin sulfate (CS) belongs to a class of molecules called glycosaminoglycans (GAGs). These are long, linear chains of polysaccharides comprising alternating amino sugars and hexuronic acid. Similar to other GAGs, CS is important in a multitude of biological activities. Alteration of CS levels has been implicated in several pathological conditions, including osteoarthritis (OA) and other inflammatory diseases, as well as physiological conditions, such as aging. Therefore, devising replenishment strategies for this molecule is an important area of research. In this review, we discuss the nature of CS, its function in different organs, and its implications in health and disease. We also describe different methods for the exogenous administration of CS.
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Affiliation(s)
- Sarita Mishra
- CSIR - Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Munia Ganguli
- CSIR - Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Ma H, Chen K, Song B, Tang Z, Huang Y, Zhang T, Wang H, Sun W, Yuan J. A visible-light-excitable mitochondria-targeted europium complex probe for hypochlorous acid and its application to time-gated luminescence bioimaging. Biosens Bioelectron 2020; 168:112560. [PMID: 32890933 DOI: 10.1016/j.bios.2020.112560] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/27/2020] [Accepted: 08/24/2020] [Indexed: 12/15/2022]
Abstract
Development of fluorescent/luminescent probes for rapid, selective and sensitive detection of reactive oxygen species (ROS) is of great significance for understanding the roles of ROS in pathophysiological processes. In the present research, a visible-light-excitable Eu3+ complex-based probe, Eu(L)3(DPBT), is designed and synthesized for the time-gated luminescence (TGL) determination of hypochlorous acid (HClO) in vitro and in vivo. The proposed probe exhibits a rapid, selective and sensitive TGL response to HClO, and excellent localization of mitochondria in living cells with low cytotoxicity. These features allow the probe to be used for the TGL sensing and imaging of HClO formation in mimic inflammatory cells at a subcellular level, as well as in endotoxin-induced liver injury and rheumatoid arthritis in live mice. In addition, by immobilizing the probe in the PEG hydrogel, the smart sensor films with rapid response to HClO were prepared, and successfully used for the real-time monitoring of HClO generation in mouse wounds, in order to distinguish the infected wounds from acute ones. Overall, this study provides a useful tool for the clinical monitoring and treatment of wound diseases.
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Affiliation(s)
- Hua Ma
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Kaiwen Chen
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Bo Song
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China.
| | - Zhixin Tang
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Yundi Huang
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Ting Zhang
- Department of Pathophysiology, Dalian Medical University, Dalian, 116044, China
| | - Huanan Wang
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Wenping Sun
- Department of Pathophysiology, Dalian Medical University, Dalian, 116044, China
| | - Jingli Yuan
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China.
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Bilal M, Iqbal HMN. Biologically active macromolecules: Extraction strategies, therapeutic potential and biomedical perspective. Int J Biol Macromol 2020; 151:1-18. [PMID: 32035954 DOI: 10.1016/j.ijbiomac.2020.02.037] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/31/2020] [Accepted: 02/05/2020] [Indexed: 02/05/2023]
Abstract
Marine biome exhibits an immense essence of excellence and enriched with high-value bioactive compounds of therapeutic and biomedical value. During the past several years, an array of biologically active molecules has been extracted/isolated and purified from numerous sources of marine origin with the aid of distinct techniques and methodologies for newer applications. The growing demand for bioactive molecules with unique functionalities in various industrial divisions, such as therapeutic sectors and biomedical, has endorsed the necessity for highly suitable and standardized strategies to extract these bioactive components using a state-of-the-art and inexpensive measures. This is also because many in practice conventional extraction methodologies suffer from processing limitations and low-yield issues. Besides that, other major issues include (i) decrease efficacy, (ii) excessive energy cost, (iii) low yield, (iv) lower cost-effective ratio, (v) minimal selectivity, (vi) low activity, and (vii) stability, etc. In this context, there is an urgent need for new and robust extraction strategies. The synergies of modern extraction techniques with efficient and novel pretreatment approaches, such as the integration of enzymes, accompanied by conventional extraction processes, should be the utmost goal of current research and development studies. The typical effectivity of the extraction techniques mostly relies on these points, i.e., (i) know-how about the source nature and type, (ii) understanding the structural and compositional profile, (iii) influence of the processing factors, (iv) interplay between the extraction conditions and the end-product, (v) understanding the available functional entities, (vi) reaction chemistry of the extract bioactive compounds, and (vii) effective exploitation of the end-product in the marketplace. Marine biome, among numerous naturally occurring sources, has been appeared an immense essence of excellence to isolate an array of biologically active constituents with medicinal values and related point-of-care applications. Herein, we reviewed the salient information covering various therapeutic potential and biomedical perspectives. Following a brief introduction and marine pharmacognosy, an array of high-value biomolecules of marine origin are discussed with suitable examples. From the robust extraction strategies viewpoint, a part of the review focuses on three techniques, i.e., (1) enzyme-assisted extraction (EAE), (2) supercritical-fluid extraction (SFE), and (3) microwave-assisted extraction (MAE). Each technique is further enriched with processing and workflow environment. The later part of the review is mainly focused on the therapeutic and biomedical perspectives of under-reviewed bio-active compounds or biomolecules. The previous and latest research on the anticancer, skin curative, cardio-protective, immunomodulatory and UV-protectant potentialities of marine-derived biologically active entities have been summarized with suitable examples and related pathways illustrations. Finally, the work is wrapped-up with current research challenges, future aspects, and concluding remarks.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico.
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Photoacoustic viscoelasticity imaging for the detection of acute hepatitis: a feasibility study. BIOPHYSICS REPORTS 2020. [DOI: 10.1007/s41048-020-00104-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
AbstractBiomechanical assessments are essential for the understanding of physiological states and the characterization of certain tissue pathologies such as liver cirrhosis. In this work, we showed by the photoacoustic viscoelasticity (PAVE) imaging that obvious mechanical change was also observed in the development of the acute hepatitis owing to the hepatocyte enlargement and intracellular fluid increment, indicating that the PAVE technique can be developed as a supplementary method for detecting acute hepatitis in future. The feasibility of the PAVE imaging is validated by a group of agar phantoms. Furthermore, acute hepatitis pathological animal models were established and imaged ex vivo and in situ by the PAVE technique to demonstrate its capability for the mechanical characterization of acute hepatitis, and the imaging results were consistent with pathological results. The feasibility study of detecting acute hepatitis by the PAVE technique proved that this method has potential to be developed as a clinical biomechanical imaging method to supplement current clinical strategy for liver disease detection.
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Shehzad A, Rehmat S, Ul-Islam S, Ahmad R, Aljafary M, Alrushaid NA, Al-Suhaimi EA. Lirioresinol B dimethyl ether inhibits NF-κB and COX-2 and activates IκBα expression in CCl 4-induced hepatic fibrosis. BMC Complement Med Ther 2020; 20:49. [PMID: 32046692 PMCID: PMC7076869 DOI: 10.1186/s12906-020-2839-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 01/30/2020] [Indexed: 12/20/2022] Open
Abstract
Background Inflammation is one of the key components in the initiation and progression of hepatic diseases. If not treated, inflammation may cause cell dysplasia, and ultimately cancer. In the current study, we investigated the anti-inflammatory and anti-cancer activities of plant isolated compound Lirioresinol B Dimethyl Ether (LBDE) extracted from the seeds of Magnolia fargesii CHENG (Magnoliaceae) against HepG2 cells as well as in BALB/C male mice. Methods We assessed the antioxidant and anti-proliferative effects of plant compounds using DPPH assay and HepG2 cell lines. Carbon tetrachloride (CCl4) and Diethylnitrosamine (DEN) were used to induce liver cell dysplasia followed by hepatocellular carcinoma (HCC) in BALB/C male mice for 12 weeks. We investigated the underlying mechanism by using histopathology and immunoblot experiments. Results Intraperitoneal injection of LBDE (50 mg/kg body weight/day) inhibited CCl4-induced HCC. Free radical scavenging assay shows the strong anti-oxidant activity of LBDE. Western blot results show that LBDE down-regulated nuclear factor kappa B (NFκB) and cyclooxygenase (COX-2) by preventing the phosphorylation of I kappa B alpha (IκBα) in CCl4 treated group. LBDE also improved liver function by decreasing Alkaline Phosphatase (ALP), aspartate aminotransferase (AST) and Alanine Aminotransferase (ALT) levels. Histopathology results revealed that LBDE decreased granulomas and express normal morphology of hepatocytes. Conclusions These preliminary results show that LBDE has the potential to inhibit CCl4-induced liver cell dysplasia and prevents cancer development by regulating NFκB/COX-2 activation.
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Affiliation(s)
- Adeeb Shehzad
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Shagufta Rehmat
- Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology, Islamabad, Pakistan
| | - Salman Ul-Islam
- School of Life Sciences, Kyungpook National University, Daegu, South Korea
| | - Rizwan Ahmad
- Natural Products and Alternative Medicines, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Meneerah Aljafary
- Department of Biology, College of Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Noor A Alrushaid
- Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ebtesam A Al-Suhaimi
- Department of Biology, College of Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia. .,Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
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Fouad D, Badr A, Attia HA. Hepatoprotective activity of raspberry ketone is mediated via inhibition of the NF-κB/TNF-α/caspase axis and mitochondrial apoptosis in chemically induced acute liver injury. Toxicol Res (Camb) 2019; 8:663-676. [PMID: 31588343 PMCID: PMC6762009 DOI: 10.1039/c9tx00068b] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/26/2019] [Indexed: 12/13/2022] Open
Abstract
Raspberry Ketone (RK) is a natural phenolic compound which is marketed nowadays as a popular weight-reducing remedy, with reported antioxidant and anti-inflammatory activities. However, its biological activity is not fully elucidated. Hepatotoxicity is the leading cause of acute liver failure in Europe and North America, and its management is still challenging. Therefore, this study aimed to assess the therapeutic detoxification activity of RK against liver injury in vivo and to explore the underlying mechanisms using carbon tetrachloride (CCl4)-induced hepatotoxicity as a model. First, a dose-response study using 4 different doses, 25, 50, 100, and 200 mg kg-1 day-1, of RK was conducted. RK was administered for 5 days as a pretreatment, followed by a single dose of CCl4 (1 ml kg-1, 1 : 1 v/v CCl4 : olive oil). The RK dose of 200 mg kg-1 showed the greatest protective effect and was selected for further investigations. CCl4 hepatotoxicity was confirmed by elevation of liver enzymes, and histopathological examination. CCl4-induced oxidative stress was evident from increased lipid peroxidation measured as thiobarbituric acid reactive substances (TBARS) along with depleted superoxide dismutase (SOD), reduced glutathione (GSH), and total antioxidant capacity (TAC). Increased oxidative stress was associated with increased cytochrome c expression with subsequent activation of caspase-9 and caspase-3, in addition to DNA fragmentation reflecting apoptosis. CCl4 also induced the expression of inflammatory cytokines (NF-κB and TNF-α). Interestingly, RK hepatoprotective activity was evident from the reduction of liver enzymes, and maintenance of hepatocyte integrity and microstructures as evaluated by histopathological examination using H and E, and transmission electron microscopy. The antioxidant activity of RK was demonstrated by the increase of TAC, SOD, and GSH, with a concomitant decrease of the TBARS level. Moreover, RK pretreatment inhibited CCl4-induced upregulation of inflammatory mediators. RK antiapoptotic activity was indicated by the reduction of the expression of cytoplasmic cytochrome-C, a decrease of caspases, and inhibition of DNA fragmentation. In conclusion, this study demonstrates that RK is a promising hepatoprotective agent. The underlying mechanisms include antioxidant, anti-inflammatory, and anti-apoptotic activities. This is the first study reporting RK hepatoprotective activity in acute hepatic injury and approves its antiapoptotic effect in the liver.
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Affiliation(s)
- Dalia Fouad
- Department of Zoology , College of Science , King Saud University , P.O. Box 22452 , Riyadh 11459 , Saudi Arabia
- Department of Zoology and Entomology , Faculty of Science , Helwan University , Ein Helwan , Cairo , Egypt
| | - Amira Badr
- Department of Pharmacology and Toxicology , College of Pharmacy , King Saud University , P.O. Box 22452 , Riyadh 11459 , Saudi Arabia . ; Tel: +96659575917
- Department of Pharmacology and Toxicology , College of Pharmacy , Ain Shams University , Heliopolis , Cairo , Egypt
| | - Hala A Attia
- Department of Pharmacology and Toxicology , College of Pharmacy , King Saud University , P.O. Box 22452 , Riyadh 11459 , Saudi Arabia . ; Tel: +96659575917
- Department of Biochemistry , College of Pharmacy , Mansoura University , Mansoura , Egypt
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Ustuner D, Colak E, Dincer M, Tekin N, Burukoglu Donmez D, Akyuz F, Colak E, Kolaç UK, Entok E, Ustuner MC. Posttreatment Effects ofOlea EuropaeaL. Leaf Extract on Carbon Tetrachloride-Induced Liver Injury and Oxidative Stress in Rats. J Med Food 2018; 21:899-904. [DOI: 10.1089/jmf.2017.0143] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Derya Ustuner
- Department of Medical Laboratory, Vocational School of Health Services, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Emine Colak
- Department of Medical Biology, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Murat Dincer
- Department of Medical Oncology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Neslihan Tekin
- Department of Biotechnology and Molecular Biology, Aksaray University, Aksaray, Turkey
| | - Dilek Burukoglu Donmez
- Department of Histology and Embryology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Fahrettin Akyuz
- Department of Medical Biochemistry, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Ertugrul Colak
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Umut Kerem Kolaç
- Department of Medical Biology, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Emre Entok
- Department of Nuclear Medicine, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
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The synthesis of a new unsaturated derivative of chondroitin sulfate with increased antioxidant properties. Carbohydr Polym 2018; 190:175-183. [PMID: 29628235 DOI: 10.1016/j.carbpol.2018.02.080] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/24/2017] [Accepted: 02/25/2018] [Indexed: 12/21/2022]
Abstract
Chondroitin sulfate (CS) was regio-specifically modified to an unsaturated derivative (ΔCS) with a double bond in positions 4 and 5 of N-acetyl-d-galactosamine. The structure of ΔCS was elucidated in detail by two dimensional nuclear magnetic resonance, ultraviolet spectroscopy and mass spectrometry. The introduction of a nucleophilic CC double bond into a polymer backbone had no influence on biocompatibility of CS, which was demonstrated by MTT live-dead assay and enzymatic degradation in vitro. On the other hand the chemical modification significantly enhanced the reactivity of ΔCS towards numerous oxidizing agents, which might be promising for a variety of biomedical and cosmetic applications.
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Yang C, Li L, Ma Z, Zhong Y, Pang W, Xiong M, Fang S, Li Y. Hepatoprotective effect of methyl ferulic acid against carbon tetrachloride-induced acute liver injury in rats. Exp Ther Med 2017; 15:2228-2238. [PMID: 29467841 PMCID: PMC5792767 DOI: 10.3892/etm.2017.5678] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 06/06/2017] [Indexed: 12/14/2022] Open
Abstract
The present study aimed to investigate the hepatoprotective effects of methyl ferulic acid (MFA) against oxidative stress and apoptosis in acute liver injury induced by carbon tetrachloride (CCl4) in rats, as well as the underlying mechanisms. Sprague Dawley rats were treated with CCl4 after oral administration of MFA (25, 50, and 100 mg/kg) or dimethyl diphenyl bicarboxylate (200 mg/kg) for 7 days. The hepatoprotective effects of MFA were determined by analyzing serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities as well as changes of oxidant parameters. Histopathological analysis was performed to determine the degree of hepatic injury. The mechanisms were investigated by detecting the levels of NADPH oxidase (NOX) trans-membrane subunit NOX4, its ligand p22phox, as well as caspase3, cleaved caspase3, B-cell lymphoma (Bcl)-2, Bcl-2-associated X protein (Bax), tumor necrosis factor (TNF)-α, interleukin (IL)-1, reactive oxygen species (ROS), thiobarbituric acid-reactive substances (TBARS), total anti-oxidant capacity (TAC), phosphorylated J-Jun N-terminal kinase (p-JNK) and p-p38 mitogen-activated protein kinase (MAPK) using semi-quantitative polymerase chain reaction, western blot analysis and colorimetric assays. MFA treatment significantly decreased serum enzymatic activities of ALT and AST. MFA markedly increased activities of liver superoxide dismutase, catalase and glutathione peroxidase, and reduced the malondialdehyde concentration. Histopathological examination demonstrated that MFA reduced lipid degeneration, cytoplasmic vacuolization, necrosis and inflammatory cell infiltration in the liversof CCl4-treated rats. MFA treatment markedly inhibited the expression of inflammatory factors TNF-α and IL-1β. Mechanistic study revealed that MFA decreased the TAC and the levels of ROS and TBARS. Furthermore, MFA treatment led to a reduction of the mRNA and protein expression of NOX4 and p22phox, as well as the protein levels of caspase3, cleaved caspase-3 and Bax, and an upregulation of p-JNK, p-p38 MAPK and Bcl-2 proteins in the liver. The present study demonstrated that MFA has hepatoprotective effects against CCl4-induced acute liver damage. MFA has anti-oxidant, anti-inflammatory and anti-apoptotic activities and was able to modulate the NOX4/p22phox/ROS-JNK/p38 MAPK signaling pathway.
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Affiliation(s)
- Chengfang Yang
- Department of Pharmacology, College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Li Li
- Department of Pharmacology, College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Zuheng Ma
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 17176 Stockholm, Sweden
| | - Yujuan Zhong
- Department of Pharmacology, College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Wenxiao Pang
- Department of Pharmacology, College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Meili Xiong
- Department of Pharmacology, College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Shuping Fang
- Department of Pharmacology, College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Yongwen Li
- Department of Pharmacology, College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
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Zhao X, Li R, Liu Y, Zhang X, Zhang M, Zeng Z, Wu L, Gao X, Lan T, Wang Y. Polydatin protects against carbon tetrachloride-induced liver fibrosis in mice. Arch Biochem Biophys 2017; 629:1-7. [DOI: 10.1016/j.abb.2017.06.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 06/22/2017] [Accepted: 06/25/2017] [Indexed: 01/22/2023]
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Yang Z, Zhang X, Yang L, Pan Q, Li J, Wu Y, Chen M, Cui S, Yu J. Protective effect of Anoectochilus roxburghii polysaccharide against CCl 4 -induced oxidative liver damage in mice. Int J Biol Macromol 2017; 96:442-450. [DOI: 10.1016/j.ijbiomac.2016.12.039] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 12/03/2016] [Accepted: 12/07/2016] [Indexed: 10/20/2022]
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Schisandra Lignan Extract Protects against Carbon Tetrachloride-Induced Liver Injury in Mice by Inhibiting Oxidative Stress and Regulating the NF- κB and JNK Signaling Pathways. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:5140297. [PMID: 28246539 PMCID: PMC5299172 DOI: 10.1155/2017/5140297] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 12/13/2016] [Accepted: 12/27/2016] [Indexed: 12/25/2022]
Abstract
Schisandra chinensis (S. chinensis) is a traditional Chinese herbal medicine widely used for the treatment of liver disease, whose main active components are lignans. However, the action mechanisms of the lignans in S. chinensis remain unclear. This study aimed to investigate the protective effect and related molecular mechanism of Schisandra lignan extract (SLE) against carbon tetrachloride- (CCl4-) induced acute liver injury in mice. Different doses of SLE at 50, 100, and 200 mg/kg were administered daily by gavage for 5 days before CCl4 treatment. The results showed that SLE significantly decreased the activities of serum ALT/AST and reduced liver pathologic changes induced by CCl4. Pretreatment with SLE not only decreased the content of MDA but increased SOD, GSH, and GSH-Px activities in the liver, suggesting that SLE attenuated CCl4-induced oxidative stress. The expression levels of inflammatory cytokines TNF-a, IL-1β, and IL-6 were decreased after oral administration of SLE, probably because lignans inhibited the NF-κB activity. Additionally, SLE also inhibited hepatocyte apoptosis by suppressing JNK activation and regulating Bcl-2/Bax signaling pathways. In conclusion, these results suggested that SLE prevented CCl4-induced liver injury through a combination of antioxidative stress, anti-inflammation, and antihepatocyte apoptosis and alleviated inflammation and apoptosis by regulating the NF-κB, JNK, and Bcl-2/Bax signaling pathways.
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Tang D, Wang F, Tang J, Mao A, Liao S, Wang Q. Dicranostiga leptopodu (Maxim.) Fedde extracts attenuated CCl 4-induced acute liver damage in mice through increasing anti-oxidative enzyme activity to improve mitochondrial function. Biomed Pharmacother 2016; 85:763-771. [PMID: 27923690 DOI: 10.1016/j.biopha.2016.11.097] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 11/13/2016] [Accepted: 11/24/2016] [Indexed: 12/14/2022] Open
Abstract
Dicranostiga Leptodu (Maxim.) fedde (DLF), a poppy plant, has been reported have many benefits and medicinal properties, including free radicals scavenging and detoxifying. However, the protective effect of DLF extracts against carbon tetrachloride (CCl4)-induced damage in mice liver has not been elucidated. Here, we demonstrated that DLF extracts attenuated CCl4-induced liver damage in mice through increasing anti-oxidative enzyme activity to improve mitochondrial function. In this study, the mice liver damage evoked by CCl4 was marked by morphology changes, significant rise in lipid peroxidation, as well as alterations of mitochondrial respiratory function. Interestingly, pretreatment with DLF extracts attenuated CCl4-induced morphological damage and increasing of lipid peroxidation in mice liver. Additionally, DLF extracts improved mitochondrial function by preventing the disruption of respiratory chain and suppression of mitochondrial Na+K+-ATPase and Ca2+-ATPase activity. Furthermore, administration with DLF extracts elevated superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) levels and maintained the balance of redox status. This results showed that toxic protection effect of DLF extracts on mice liver is mediated by improving mitochondrial respiratory function and keeping the balance of redox status, which suggesting that DLF extracts could be used as potential toxic protection agent for the liver against hepatotoxic agent.
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Affiliation(s)
- Deping Tang
- School of Chemical & Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China
| | - Fang Wang
- Institute of Gansu Medical Science Research, Lanzhou 730050, PR China
| | - Jinzhou Tang
- Institute of Gansu Medical Science Research, Lanzhou 730050, PR China; School of life science, Lanzhou University, Lanzhou 730000, PR China
| | - Aihong Mao
- Institute of Gansu Medical Science Research, Lanzhou 730050, PR China; School of life science, Lanzhou University, Lanzhou 730000, PR China.
| | - Shiqi Liao
- Institute of Gansu Medical Science Research, Lanzhou 730050, PR China
| | - Qin Wang
- School of life science, Lanzhou University, Lanzhou 730000, PR China
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Hasan HF, Abdel-Rafei MK, Galal SM. Diosmin attenuates radiation-induced hepatic fibrosis by boosting PPAR-γ expression and hampering miR-17-5p-activated canonical Wnt-β-catenin signaling. Biochem Cell Biol 2016; 95:400-414. [PMID: 28177765 DOI: 10.1139/bcb-2016-0142] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Liver fibrosis is one of the major complications from upper right quadrant radiotherapy. MicroRNA-17-5p (miR-17-5p) is hypothesized to act as a regulator of hepatic stellate cell (HSCs) activation by activation of the canonical Wnt-β-catenin pathway. Diosmin (Dios), a citrus bioflavonoid, is known to possess potent antioxidant, anti-inflammatory, and anti-apoptotic properties. PURPOSE To explore the molecular mechanisms that underlie radiation-induced liver fibrosis, and to evaluate the possible influence of Dios on the miR-17-5p-Wnt-β-catenin signaling axis during fibrogenesis provoked by irradiation (IRR) in rats. Also, the effect of Dios on hepatic peroxisome proliferator activated receptor-γ (PPAR-γ) expression as a regulator for HSC activation was considered. METHODS We administered 100 mg·(kg body mass)-1·day-1 (per oral) of Dios were administered to IRR-exposed rats (overall dose of 12 Gy on 6 fractions of 2 Gy each) for 6 successive weeks. RESULTS Data analysis revealed that Dios treatment mitigated oxidative stress, enhanced antioxidant defenses, alleviated hepatic inflammatory responses, abrogated pro-fibrogenic cytokines, and stimulated PPAR-γ expression. Dios treatment repressed the miR-17-5p activated Wnt-β-catenin signaling induced by IRR. Moreover, Dios treatment restored the normal hepatic architecture and reversed pathological alterations induced by IRR. CONCLUSION We hypothesize that the stimulation of PPAR-γ expression and interference with miR-17-5p activated Wnt-β-catenin signaling mediates the antifibrotic properties of Dios.
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Affiliation(s)
- Hesham Farouk Hasan
- a Radiation Biology Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, PO Box 29, Nasr City, Cairo, Egypt
| | - Mohamed Khairy Abdel-Rafei
- a Radiation Biology Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, PO Box 29, Nasr City, Cairo, Egypt
| | - Shereen Mohamed Galal
- b Health Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, PO Box 29, Nasr City, Cairo, Egypt
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Attia H, Al-Rasheed N, Mohamad R, Al-Rasheed N, Al-Amin M. The antifibrotic and fibrolytic properties of date fruit extract via modulation of genotoxicity, tissue-inhibitor of metalloproteinases and nuclear factor- kappa B pathway in a rat model of hepatotoxicity. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:414. [PMID: 27776513 PMCID: PMC5078931 DOI: 10.1186/s12906-016-1388-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 10/11/2016] [Indexed: 01/18/2023]
Abstract
BACKGROUND Hepatic fibrosis and its end point; cirrhosis, are the major cause of liver failure and death in patients with chronic liver disease. Therefore, the need for an effective treatment is evident. This study was designed to assess the potential effects of aqueous extract of date fruits, either flesh (DFE) or pits (DPE), on oxidative DNA damage and liver inflammation induced by carbon tetrachloride (CCl4) and whether they are related to inhibition of nuclear factor-κB pathway. In addition, the fibrolytic potential was evaluated via measuring matrix metalloproteinase-9 and tissue inhibitor of metalloproteinases -1 and -2. METHODS Rats were divided into the following groups: normal control, model control (CCl4 only), CCl4 + DFE, CCl4 + DPE and CCl4 + coffee. Coffee was used as a positive control. Fibrosis was induced by chronic administration of CCl4 (0.4 ml/kg) 3× a week for 8 weeks, and rats were treated with 6 ml/kg/day of DFE or DPE for 8 weeks. Liver homogenate was prepared for evaluation of oxidative stress, DNA damage, inflammatory and fibrolytic markers. Data are analyzed using one-way analysis of variance followed by a Tukey-Kramer post hoc test. RESULTS Both DFE and DPE significantly attenuated CCl4-induced oxidative damage as indicated by reducing lipid, protein and DNA oxidation in addition to increasing the levels of hepatic catalase activity. Both extracts blocked the accumulation of collagen I in the liver and ameliorated the increased expression of collagen III and α-smooth muscle actin suggesting suppression of profibrotic response induced by CCl4. DFE and DPE also upregulated the expression of heme oxygenase-1 and attenuated the nuclear factor-κB activation and cycloxygenase-2 expression reflecting their anti-inflammatory potential. Additionally, both flesh and pits extracts attenuated the increase in the tissue inhibitor of metalloproteinases -1 and -2 suggesting their fibrolytic activity. CONCLUSION Our data suggest that DFE or DPE can prevent liver fibrosis by suppressing genotoxicity and nuclear factor-κB inflammatory pathway and by promoting collagen degradation.
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Affiliation(s)
- Hala Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, 11495, Kingdom of Saudi Arabia.
- Department of Biochemistry, College of Pharmacy, Mansoura University, 35516, Mansoura, Egypt.
| | - Nouf Al-Rasheed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, 11495, Kingdom of Saudi Arabia
| | - Raeesa Mohamad
- Anatomy Department, Faculty of Medicine, King Saud University, Riyadh, 11495, Kingdom of Saudi Arabia
| | - Nawal Al-Rasheed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, 11495, Kingdom of Saudi Arabia
| | - Maha Al-Amin
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, 11495, Kingdom of Saudi Arabia
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Ajisaka K, Oyanagi Y, Miyazaki T, Suzuki Y. Effect of the chelation of metal cation on the antioxidant activity of chondroitin sulfates. Biosci Biotechnol Biochem 2016; 80:1179-85. [DOI: 10.1080/09168451.2016.1141036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abstract
The antioxidant potencies of chondroitin sulfates (CSs) from shark cartilage, salmon cartilage, bovine trachea, and porcine intestinal mucosa were compared by three representative methods for the measurement of the antioxidant activity; DPPH radical scavenging activity, superoxide radical scavenging activity, and hydroxyl radical scavenging activity. CSs from salmon cartilage and bovine trachea showed higher potency in comparison with CSs from shark cartilage and porcine intestinal mucosa. Next, CS from salmon cartilage chelating with Ca2+, Mg2+, Mn2+, or Zn2+ were prepared, and their antioxidant potencies were compared. CS chelating with Ca2+ or Mg2+ ions showed rather decreased DPPH radical scavenging activity in comparison with CS of H+ form. In contrast, CS chelating with Ca2+ or Mg2+ ion showed remarkably enhanced superoxide radical scavenging activity than CS of H+ or Na+ form. Moreover, CS chelating with divalent metal ions, Ca2+, Mg2+, Mn2+, or Zn2+, showed noticeably higher hydroxyl radical scavenging activity than CS of H+ or Na+ form. The present results revealed that the scavenging activities of, at least, superoxide radical and hydroxyl radical were enhanced by the chelation with divalent metal ions.
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Affiliation(s)
- Katsumi Ajisaka
- Department of Food Science, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Yutaka Oyanagi
- Department of Food Science, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Tatsuo Miyazaki
- Department of Food Science, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Yasuhiro Suzuki
- Department of Food Science, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
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Colak E, Ustuner MC, Tekin N, Colak E, Burukoglu D, Degirmenci I, Gunes HV. The hepatocurative effects of Cynara scolymus L. leaf extract on carbon tetrachloride-induced oxidative stress and hepatic injury in rats. SPRINGERPLUS 2016; 5:216. [PMID: 27026910 PMCID: PMC4771653 DOI: 10.1186/s40064-016-1894-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 02/17/2016] [Indexed: 01/23/2023]
Abstract
Cynara scolymus is a pharmacologically important medicinal plant containing phenolic acids and flavonoids. Experimental studies indicate antioxidant and hepatoprotective effects of C. scolymus but there have been no studies about therapeutic effects of liver diseases yet. In the present study, hepatocurative effects of C. scolymus leaf extract on carbon tetrachloride (CCl4)-induced oxidative stress and hepatic injury in rats were investigated by serum hepatic enzyme levels, oxidative stress indicator (malondialdehyde-MDA), endogenous antioxidants, DNA fragmentation, p53, caspase 3 and histopathology. Animals were divided into six groups: control, olive oil, CCl4, C. scolymus leaf extract, recovery and curative. CCl4 was administered at a dose of 0.2 mL/kg twice daily on CCl4, recovery and curative groups. Cynara scolymus extract was given orally for 2 weeks at a dose of 1.5 g/kg after CCl4 application on the curative group. Significant decrease of serum alanine-aminotransferase (ALT) and aspartate-aminotransferase (AST) levels were determined in the curative group. MDA levels were significantly lower in the curative group. Significant increase of superoxide dismutase (SOD) and catalase (CAT) activity in the curative group was determined. In the curative group, C. scolymus leaf extract application caused the DNA % fragmentation, p53 and caspase 3 levels of liver tissues towards the normal range. Our results indicated that C. scolymus leaf extract has hepatocurative effects of on CCl4-induced oxidative stress and hepatic injury by reducing lipid peroxidation, providing affected antioxidant systems towards the normal range. It also had positive effects on the pathway of the regulatory mechanism allowing repair of DNA damage on CCl4-induced hepatotoxicity.
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Affiliation(s)
- Emine Colak
- Department of Medical Biology, Faculty of Medicine, Eskisehir Osmangazi University, 26480 Eskisehir, Turkey
| | - Mehmet Cengiz Ustuner
- Department of Medical Biology, Faculty of Medicine, Eskisehir Osmangazi University, 26480 Eskisehir, Turkey
| | - Neslihan Tekin
- Department of Chemistry, Biochemistry Division, Faculty of Arts and Science, Aksaray University, Aksaray, Turkey
| | - Ertugrul Colak
- Department of Biostatistics, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Dilek Burukoglu
- Department of Histology and Embryology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Irfan Degirmenci
- Department of Medical Biology, Faculty of Medicine, Eskisehir Osmangazi University, 26480 Eskisehir, Turkey
| | - Hasan Veysi Gunes
- Department of Medical Biology, Faculty of Medicine, Eskisehir Osmangazi University, 26480 Eskisehir, Turkey
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DU Q, Hao C, Gou J, Li X, Zou K, He X, Li Z. Protective effects of p-nitro caffeic acid phenethyl ester on acute myocardial ischemia-reperfusion injury in rats. Exp Ther Med 2016; 11:1433-1440. [PMID: 27073461 DOI: 10.3892/etm.2016.3070] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 10/13/2015] [Indexed: 12/14/2022] Open
Abstract
Myocardial ischemia-reperfusion (IR) causes widespread cardiomyocyte dysfunction, including apoptosis and necrosis. The present study aimed to investigate the possible cardioprotective effects of p-nitro caffeic acid phenethyl ester (CAPE-NO2) on myocardial IR-induced injury in vivo. To generate a rat model of myocardial IR, the left anterior descending coronary artery was occluded for 30 min, followed by reperfusion for 2 h. The rats were administered either the sham treatment (the sham and IR control groups) or the therapeutic agents [the caffeic acid phenethyl ester (CAPE) and CAPE-NO2 groups] 10 min prior to the occlusion. Myocardial IR-induced injury is characterized by: A significant increase in the levels of myocardial enzymes, including creatine kinase, lactate dehydrogenase and aspartate transaminase; a marked increase in intercellular adhesion molecule 1 expression levels, lipid peroxidation products and inflammatory mediators; and a significant decrease in myocardial antioxidants, including catalase, total superoxide dismutase and glutathione peroxidase. In the present study, pretreatment with CAPE-NO2 significantly ameliorated these changes, and decreased the infarct size, as compared with the IR control group (10.32±3.8 vs. 35.65±5.4%). Furthermore, western blotting demonstrated that pretreatment with CAPE-NO2 downregulated the myocardial IR-induced protein expression levels of B-cell lymphoma-2 (Bcl-2)-associated X protein (Bax), cleaved caspase-3, P38 and the Bax/Bcl-2 ratio. CAPE-NO2 also upregulated the myocardial IR-induced expression levels of Bcl-2, phosphoinositide-3-kinase, phosphorylated Akt and mammalian target of rapamycin. In conclusion, the results of the present study indicated that CAPE-NO2 demonstrated improved cardioprotective effects, as compared with CAPE; therefore, CAPE-NO2 may represent a novel approach to pharmacological cardioprotection.
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Affiliation(s)
- Qin DU
- College of Pharmaceutical Sciences and Chinese Medicine, Southwest University, Chongqing 400716, P.R. China
| | - Chunzhi Hao
- College of Pharmaceutical Sciences and Chinese Medicine, Southwest University, Chongqing 400716, P.R. China
| | - Jing Gou
- College of Pharmaceutical Sciences and Chinese Medicine, Southwest University, Chongqing 400716, P.R. China
| | - Xiaoli Li
- College of Pharmaceutical Sciences and Chinese Medicine, Southwest University, Chongqing 400716, P.R. China
| | - Kaili Zou
- College of Pharmaceutical Sciences and Chinese Medicine, Southwest University, Chongqing 400716, P.R. China
| | - Xiaoyan He
- College of Pharmaceutical Sciences and Chinese Medicine, Southwest University, Chongqing 400716, P.R. China
| | - Zhubo Li
- College of Pharmaceutical Sciences and Chinese Medicine, Southwest University, Chongqing 400716, P.R. China
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Wu JG, Kan YJ, Wu YB, Yi J, Chen TQ, Wu JZ. Hepatoprotective effect of ganoderma triterpenoids against oxidative damage induced by tert-butyl hydroperoxide in human hepatic HepG2 cells. PHARMACEUTICAL BIOLOGY 2015; 54:919-929. [PMID: 26457919 DOI: 10.3109/13880209.2015.1091481] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Ganoderma triterpenoids (GTs) have been recognised as an important bioactive ingredient in Ganoderma Lucidum (Leyss. ex Fr.) Karst. (Polyporaceae), widely used for treating and preventing chronic hepatopathy of various etiologies. OBJECTIVE The objective of this study is to better understand the hepatoprotective effect of GTs and to enhance their use in food supplement pharmaceutical and medical industries. MATERIALS AND METHODS HepG2 cells were pretreated in the presence or absence of GTs (50, 100 and 200 μg/ml) for 4 h, then exposed with 60 μmol/L of t-BHP for an additional 4 h. The cell viability was evaluated by MTT method. ALT, AST and LDH production in culture medium and intracellular MDA, GSH and SOD levels were determined. Moreover, the total triterpenoid content and chemical constituents in GTs were detected by ultraviolet spectrophotometry and HPLC/Q-TOF-MS, respectively. RESULTS GTs (50, 100 and 200 μg/ml) significantly increased the relative cell viability by 4.66, 7.78 and 13.46%, respectively, and reduced the level of ALT by 11.44%, 33.41% and 51.24%, AST by 10.05%, 15.63% and 33.64%, and LDH by 16.03%, 23.4% and 24.07% in culture medium, respectively. GTs could also remarkably decrease the level of MDA and increase the content of GSH and SOD in HepG2 cells. Furthermore, the total triterpenoid content in GTs was 438 mg GAAEs/g GTs. And 16 triterpenoids in GTs were identified or tentatively characterised. DISCUSSION AND CONCLUSION Our results showed that GTs had potent cytoprotective effect against oxidative damage induced by t-BHP in HepG2 cells, thus suggesting their potential use as liver protectant.
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Affiliation(s)
- Jian-Guo Wu
- a Academy of Integrative Medicine , Fujian University of Traditional Chinese Medicine , Fuzhou , China
| | - Yong-Jun Kan
- a Academy of Integrative Medicine , Fujian University of Traditional Chinese Medicine , Fuzhou , China
| | - Yan-Bin Wu
- a Academy of Integrative Medicine , Fujian University of Traditional Chinese Medicine , Fuzhou , China
| | - Jun Yi
- b Department of Chemistry and Life Science , Fujian Institute of Education , Fuzhou , China , and
| | - Ti-Qiang Chen
- c Institute of Edible Fungi, Fujian Academy of Agricultural Sciences , Fuzhou , PR China
| | - Jin-Zhong Wu
- a Academy of Integrative Medicine , Fujian University of Traditional Chinese Medicine , Fuzhou , China
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Yang C, Gong X, Ai Q, Ge P, Lin L, Zhang L. 5-Aminoimidazole-4-carboxamide-1-β-d-ribofuranoside alleviated carbon tetrachloride-induced acute hepatitis in mice. Int Immunopharmacol 2015; 25:393-9. [PMID: 25711693 DOI: 10.1016/j.intimp.2015.02.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 01/28/2015] [Accepted: 02/11/2015] [Indexed: 01/02/2023]
Abstract
AMP-activated protein kinase (AMPK) is one of the principal cellular energy sensors participating in maintenance of energy balance but recent evidences also suggested that AMPK might be involved in the regulation of inflammation. In the present study, the AMPK activator 5-aminoimidazole-4-carboxamide-1-β-d-ribofuranoside (AICAR) was used to investigate the potential roles of AMPK in carbon tetrachloride (CCl4)-induced acute hepatitis. The experimental data indicated that treatment with AICAR significantly decreased the elevation of plasma aminotransferases and alleviated hepatic histological abnormalities in CCl4-exposed mice. Treatment with AICAR also inhibited the increase of myeloperoxidase (MPO), the induction of TNF-α, IL-6, inducible nitric oxide synthase (iNOS), nitric oxide and the upregulation of matrix metalloproteinase 2 (MMP-2), MMP-3 and MMP-9 in mice exposed to CCl4. These effects were associated with suppressed nuclear accumulation of NF-κB p65. These results indicated that the AMPK activator AICAR effectively suppressed the inflammatory responses and alleviated liver damage induced by CCl4, implying that AMPK activation might be beneficial for ameliorating inflammation-based liver damage.
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Affiliation(s)
- Changming Yang
- Department of Anesthesiology, The First People's Hospital of Jingmen, Jingmen, Hubei Province, China
| | - Xianqiong Gong
- Hepatology Center, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, Fujian Province, China
| | - Qing Ai
- Department of Physiology, Chongqing Medical University, Chongqing, China
| | - Pu Ge
- Department of Pathophysiology, Chongqing Medical University, Chongqing, China
| | - Ling Lin
- Department of Pathophysiology, Chongqing Medical University, Chongqing, China
| | - Li Zhang
- Department of Pathophysiology, Chongqing Medical University, Chongqing, China.
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Chatterjee N, Das S, Bose D, Banerjee S, Jha T, Saha KD. Leishmanial lipid affords protection against oxidative stress induced hepatic injury by regulating inflammatory mediators and confining apoptosis progress. Toxicol Lett 2014; 232:499-512. [PMID: 25445725 DOI: 10.1016/j.toxlet.2014.11.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 11/15/2014] [Accepted: 11/21/2014] [Indexed: 02/07/2023]
Abstract
Persistence of liver injury alters the internal milieu, promotes deregulation of inflammatory factors, and leads to dysplastic lesions like fibrosis, cirrhosis to hepatocellular carcinoma. Our previous study revealed that leishmanial lipid (pLLD) exerts potential anti-inflammatory activity in sepsis associated hepatic injury. We now show that pLLD gives protection against chemical induced hepatotoxicity in murine system. The beneficial effect of treatment with pLLD on such hepatic injury in mice was analyzed using different assays including ELISA, FACS, western blot and immunohistochemical analysis. pLLD significantly suppressed serum enzymes and rectified the histopathological alteration to induce the antioxidant level in CCl4 intoxicated liver. Levels of several growth factors including TGF-β, HGF, and EGF were significantly improved in serum and hepatic tissue with consequent reduction of caspase activities and expressions of Bad, Bax, p53, and NF-κBp65. Moreover, pLLD modulated inflammatory responses by decreasing the production of several cytokines and chemokines, thus preventing the infiltration of immune cells to the damaged area. It accelerated the repair process in liver damage with modulation of signalling cascade via alteration of apoptotic factors. Our experimental approaches suggest that pLLD effectively prevents liver injury mainly through down regulation of oxidative stress and inflammatory response towards anti-apoptotic changes.
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Affiliation(s)
- Nabanita Chatterjee
- Cancer Biology & Inflammatory Disorder Division, CSIR - Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Subhadip Das
- Cancer Biology & Inflammatory Disorder Division, CSIR - Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Dipayan Bose
- Cancer Biology & Inflammatory Disorder Division, CSIR - Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Somenath Banerjee
- Cancer Biology & Inflammatory Disorder Division, CSIR - Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Tarun Jha
- Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, P. O. Box 17020, Jadavpur University, Kolkata 700032, India
| | - Krishna Das Saha
- Cancer Biology & Inflammatory Disorder Division, CSIR - Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata, West Bengal 700032, India.
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Shi H, Liu X, Tang G, Liu H, Zhang Y, Zhang B, Zhao X, Wang W. Ethanol extract of Portulaca Oleracea L. reduced the carbon tetrachloride induced liver injury in mice involving enhancement of NF-κB activity. Am J Transl Res 2014; 6:746-755. [PMID: 25628785 PMCID: PMC4297342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Accepted: 10/30/2014] [Indexed: 06/04/2023]
Abstract
Acute hepatic injury causes high morbidity and mortality world-wide. Management of severe acute hepatic failure continues to be one of the most challenging problems in clinical medicine. In present study, carbon tetrachloride (CCl4) was used to induce acute liver damage in mice and the protective effects of ethanol extract of Portulaca Oleracea L. (PO) were examined. The aminotransferase activities were biochemical estimated and the liver damage was tested by morphological histological analysis and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay. The role of PO on the activity of NF-κB was determined by luciferase reporter gene assay and immunohistochemistry. The level of p-p65 was tested by western blot. Our results showed that PO administration on mice would decrease the serum aminotransferase level and reduced the liver histological damage. We also found that nuclear translocation of p65 was enhanced in liver tissues of mice treated with PO compared with control animals. In addition, in cultured hepatic cells, PO increased the NF-κB luciferase reporter gene activity and upregulated the level of phosphorylation of p65, but had no effects on mice liver SOD activity and MDA level. Collectively, PO attenuated CCl4 induced mice liver damage by enhancement of NF-κB activity.
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Affiliation(s)
- Hongguang Shi
- Division of Nephrology, Kidney Institute of PLA, Changzheng HospitalShanghai, China
- The 401 Hospital of PLAQingdao, Shandong, China
| | - Xuefeng Liu
- Department of Emergency of Changzheng Hospital, The Second Military Medical UniversityShanghai, China
| | - Gusheng Tang
- Department of Haematology, Changhai Hospital, Second Military Medical UniversityShanghai, China
| | - Haiyan Liu
- The 401 Hospital of PLAQingdao, Shandong, China
| | - Yinghui Zhang
- Division of Nephrology, Kidney Institute of PLA, Changzheng HospitalShanghai, China
| | - Bo Zhang
- Division of Nephrology, Kidney Institute of PLA, Changzheng HospitalShanghai, China
| | - Xuezhi Zhao
- Division of Nephrology, Kidney Institute of PLA, Changzheng HospitalShanghai, China
| | - Wanyin Wang
- Department of Military Hygiene, Faculty of Naval Medicine, The Second Military Medical University800 Xiangyin Road, Shanghai, China
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Diethylcarbamazine reduces chronic inflammation and fibrosis in carbon tetrachloride- (CCl₄-) induced liver injury in mice. Mediators Inflamm 2014; 2014:696383. [PMID: 25374445 PMCID: PMC4211150 DOI: 10.1155/2014/696383] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 08/15/2014] [Accepted: 08/27/2014] [Indexed: 02/07/2023] Open
Abstract
This study investigated the anti-inflammatory effects of DEC on the CCl4-induced hepatotoxicity in C57BL/6 mice. Chronic inflammation was induced by i.p. administration of CCl4 0.5 μL/g of body weight through two injections a week for 6 weeks. DEC (50 mg/kg) was administered by gavage for 12 days before finishing the CCl4 induction. Histological analyses of the DEC-treated group exhibited reduced inflammatory process and prevented liver necrosis and fibrosis. Immunohistochemical and immunofluorescence analyses of the DEC-treated group showed reduced COX-2, IL1β, MDA, TGF-β, and αSMA immunopositivity, besides exhibiting decreased IL1β, COX-2, NFκB, IFNγ, and TGFβ expressions in the western blot analysis. The DEC group enhanced significantly the IL-10 expression. The reduction of hepatic injury in the DEC-treated group was confirmed by the COX-2 and iNOS mRNA expression levels. Based on the results of the present study, DEC can be used as a potential anti-inflammatory drug for chronic hepatic inflammation.
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Wang S, Wang X, Luo F, Tang X, Li K, Hu X, Bai J. Panaxatriol saponin ameliorated liver injury by acetaminophen via restoring thioredoxin-1 and pro-caspase-12. Liver Int 2014; 34:1068-73. [PMID: 24119161 DOI: 10.1111/liv.12329] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 08/31/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Acetaminophen (APAP) is widely used as an antipyretic agent which is safe at therapeutic doses. However, overdose of APAP induces fatal and non-fatal hepatic necroses. The chemical reactive metabolites of APAP initiate toxicity and inflammatory response within the liver and lead to acute liver failure. However, the mechanism underlying APAP-induced liver injury is unknown. Thioredoxin-1 (TRX-1) is an important redox regulator, which plays roles in resisting oxidative stress, regulating inflammation and inhibiting apoptosis. Panaxatriol saponin (PTS) is one of the biologically active fractions of Panax notoginseng which is a traditional Chinese medicine. The aim of this study was to investigate the mechanism on PTS protecting liver from APAP hepatotoxicity. METHODS Mice were divided into three groups, control group, APAP group and APAP combined with PTS group. Alanine aminotransferase (ALT) and tumour necrosis factor-alpha (TNF-α) were detected by ELISA. TRX-1 and pro-caspase-12 were examined by Western blotting. RESULTS Our results showed PTS inhibited the levels of ALT and TNF-α by APAP. Pretreatment with PTS ameliorated liver injury induced by APAP. The decrease in TRX-1 expression was restored by PTS, as well as decreased pro-caspase-12 expression was inhibited by PTS. These data suggest that PTS has roles in suppressing the hepatotoxicity by APAP. CONCLUSION Panaxatriol saponin ameliorated liver injury by APAP through restoring the expression TRX-1 and inhibiting pro-caspase-12 decrease.
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Affiliation(s)
- Shengdong Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, China; Department of Science and Education Section, the seventh People's Hospital of Hangzhou, Hangzhou, China
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Protective effects of neohesperidin dihydrochalcone against carbon tetrachloride-induced oxidative damage in vivo and in vitro. Chem Biol Interact 2014; 213:51-9. [PMID: 24530446 DOI: 10.1016/j.cbi.2014.02.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/15/2014] [Accepted: 02/05/2014] [Indexed: 11/20/2022]
Abstract
The purpose of this study was to investigate the possible hepatoprotective effects of neohesperidin dihydrochalcone (NHDC) on carbon tetrachloride (CCl4)-induced acute oxidative injury in vivo and in vitro. In a mouse model, intraperitoneal injection of CCl4 resulted in a significant increase in serum aspartate transaminase (AST) and alanine transaminase (ALT) activities. Histopathological examination revealed severe hepatocyte necrosis and destruction of architecture in liver lesions, and immunohistochemical staining illustrated a remarkable enhancement of COX-2 and iNOS expression. The levels of hepatic antioxidant, such as, catalase (CAT), total superoxide dismutase (T-SOD), glutathione peroxidase (GP-X) and glutathione (GSH) were decreased, compared to the control group. However, pretreatment of NHDC for six consecutive days significantly ameliorated these changes. Moreover, Western blotting assay indicated pretreatment with NHDC also down-regulated CCl4-induced protein expressions of NF-κB, IL-6, caspase 3 and caspase 8. In HepG2 cell model, CCl4-treatment caused significant decrease in cell viability, antioxidant activities and GSH level, increase in intracellular reactive oxygen species (ROS) and thiobarbituric acid reactive substances (TBARS) level. Interestingly, pretreatment of NHDC effectively relieved CCl4-induced oxidative damage in a dose-dependent manner. In conclusion, NHDC appeared to possess promising anti-oxidative and anti-inflammatory capacities, it is possible to be used as a hepatoprotective agent.
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Winsz-Szczotka K, Komosińska-Vassev K, Kuźnik-Trocha K, Olczyk K. Antioxidant activity and structural modifications of serum chondroitin sulfate in Graves' disease. Clin Biochem 2014; 47:19-24. [DOI: 10.1016/j.clinbiochem.2013.08.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 07/30/2013] [Accepted: 08/01/2013] [Indexed: 12/22/2022]
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Hepatoprotective properties of sesamin against CCl4 induced oxidative stress-mediated apoptosis in mice via JNK pathway. Food Chem Toxicol 2013; 64:41-8. [PMID: 24287204 DOI: 10.1016/j.fct.2013.11.017] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 10/26/2013] [Accepted: 11/13/2013] [Indexed: 11/24/2022]
Abstract
Sesamin (Ses), one of the major lignan derived from sesame seeds, has been reported to have many benefits and medicinal properties. However, its protective effects against carbon tetrachloride (CCl4) induced injury in liver have not been clarified. The aim of the present study was to investigate the hepatoprotective effects of sesamin on oxidative stress and apoptosis in mice exposed to CCl4. Our data showed that sesamin significantly prevented CCl4-induced hepatotoxicity in a dose-dependent manner, indicated by both diagnostic indicators of liver damage (serum aminotransferase activities) and histopathological analysis. Moreover, CCl4-induced profound elevation of reactive oxygen species (ROS) production and oxidative stress, as evidenced by increasing of lipid peroxidation level and depleting of the total antioxidant capacity (TAC) in liver, were suppressed by treatment with sesamin. Furthermore, TUNEL assay showed that CCl4-induced apoptosis in mouse liver was significantly inhibited by sesamin. In exploring the underlying mechanisms of sesamin action, we found that activities of caspase-3 were markedly inhibited by the treatment of sesamin in the liver of CCl4 treated mice. Sesamin increased expression levels of phosphorylated Jun N-terminal kinases (JNK) in liver, which in turn inactivated pro-apoptotic signaling events restoring the balance between mitochondrial pro- and anti-apoptotic Bcl-2 proteins and decreasing the release of mitochondrial cytochrome c in liver of CCl4 treated mice. JNK was also involved in the mitochondrial extrinsic apoptotic pathways of sesamin effects against CCl4 induced liver injury by regulating the expression levels of phosphorylated c-Jun proteins, necrosis factor-alpha (TNF-α) and Bak. In conclusion, these results suggested that the inhibition of CCl4-induced apoptosis by sesamin is due at least in part to its anti-oxidant activity and its ability to modulate the JNK signaling pathway.
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Minicis SD, Kisseleva T, Francis H, Baroni GS, Benedetti A, Brenner D, Alvaro D, Alpini G, Marzioni M. Liver carcinogenesis: rodent models of hepatocarcinoma and cholangiocarcinoma. Dig Liver Dis 2013; 45. [PMID: 23177172 PMCID: PMC3716909 DOI: 10.1016/j.dld.2012.10.008] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Hepatocellular carcinoma and cholangiocarcinoma are primary liver cancers, both represent a growing challenge for clinicians due to their increasing morbidity and mortality. In the last few years a number of in vivo models of hepatocellular carcinoma and cholangiocarcinoma have been developed. The study of these models is providing a significant contribution in unveiling the pathophysiology of primary liver malignancies. They are also fundamental tools to evaluate newly designed molecules to be tested as new potential therapeutic agents in a pre-clinical set. Technical aspects of each model are critical steps, and they should always be considered in order to appropriately interpret the findings of a study or its planning. The purpose of this review is to describe the technical and experimental features of the most significant rodent models, highlighting similarities or differences between the corresponding human diseases. The first part is dedicated to the discussion of models of hepatocellular carcinoma, developed using toxic agents, or through dietary or genetic manipulations. In the second we will address models of cholangiocarcinoma developed in rats or mice by toxin administration, genetic manipulation and/or bile duct incannulation or surgery. Xenograft or syngenic models are also proposed.
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Affiliation(s)
- Samuele De Minicis
- Department of Gastroenterology, Università Politecnica delle Marche, Ancona, Italy
| | - Tatiana Kisseleva
- Division of Gastroenterology, Department of Medicine, University of California San Diego, School of Medicine, CA, United States
| | - Heather Francis
- Division Research, Central Texas Veterans Health Care System, Scott & White Digestive Disease Research Center, Department of Medicine, Division Gastroenterology, Scott & White Hospital and Texas A&M Health Science Center, College of Medicine, Temple, TX, United States
| | | | - Antonio Benedetti
- Department of Gastroenterology, Università Politecnica delle Marche, Ancona, Italy
| | - David Brenner
- Division of Gastroenterology, Department of Medicine, University of California San Diego, School of Medicine, CA, United States
| | - Domenico Alvaro
- Division of Gastroenterology, Polo Pontino, Università degli Studi “La Sapienza”, Rome, Italy
| | - Gianfranco Alpini
- Division of Gastroenterology, Department of Medicine, University of California San Diego, School of Medicine, CA, United States,Co-corresponding author. Tel.: +1 254 743 1041/1044; fax: +1 254 743 0378/0555. (M. Marzioni)
| | - Marco Marzioni
- Department of Gastroenterology, Università Politecnica delle Marche, Ancona, Italy,Corresponding author at: Department of Gastroenterology, Università Politecnica delle Marche, Nuovo Polo Didattico, III Piano, Via Tronto 10, 60020 Ancona, Italy. Tel.: +39 0712206043; fax: +39 0712206044
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Radulović NS, Stojković MB, Mitić SS, Randjelović PJ, Ilić IR, Stojanović NM, Stojanović-Radić ZZ. Exploitation of the Antioxidant Potential of Geranium Macrorrhizum (Geraniaceae): Hepatoprotective and Antimicrobial Activities. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200701218] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In this study we evaluated in vitro (radical scavenging) and in vivo (hepatoprotective effect) antioxidant activities and antimicrobial properties of the extracts of the above- and underground parts of Geranium macrorrhizum L. (Geraniaceae), an ethnopharmacologically renowned plant species. The antioxidant activity and total phenol and flavonoid contents of four different solvent extracts were evaluated by seven different methods. The methanol extracts, administered i.p. to rats (120-480 mg/kg), were evaluated for hepatoprotective activity in a CCl4-induced hepatotoxicity model. The same extracts were tested for antimicrobial activity against seven bacterial and two fungal species. The administered methanol extracts with the highest antioxidant potential showed a significant dose-dependent hepatoprotective action against CCl4-induced liver damage in both decreasing the levels of liver transaminases and bilirubin and in reducing the extent of morphological malformations of the liver. The leaf methanol extract displayed a very strong antibacterial activity, especially against Staphylococcus aureus, with low minimal inhibitory and bactericidal concentrations. These results justify the frequent use of this plant species in folk medicine. Besides the known astringent effect, one can expect that the observed antimicrobial activity against several human pathogens contributes to the wound healing properties of this plant.
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Affiliation(s)
- Niko S. Radulović
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33,18000 Niš, Serbia
| | - Milan B. Stojković
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33,18000 Niš, Serbia
| | - Snežana S. Mitić
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33,18000 Niš, Serbia
| | - Pavle J. Randjelović
- Department of Physiology, Faculty of Medicine, University of Niš, Zorana Đinđća 81, 18000 Niš, Serbia
| | - Ivan R. Ilić
- Institute of Pathology, Faculty of Medicine, University of Niš, Zorana Đinđća 81, 18000 Niš, Serbia
| | | | - Zorica Z. Stojanović-Radić
- Department of Biology and Ecology, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
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Zhang H, Yu CH, Jiang YP, Peng C, He K, Tang JY, Xin HL. Protective effects of polydatin from Polygonum cuspidatum against carbon tetrachloride-induced liver injury in mice. PLoS One 2012; 7:e46574. [PMID: 23029551 PMCID: PMC3461010 DOI: 10.1371/journal.pone.0046574] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 08/31/2012] [Indexed: 01/01/2023] Open
Abstract
Polydatin is one of main compounds in Polygonum cuspidatum, a plant with both medicinal and nutritional value. The possible hepatoprotective effects of polydatin on acute liver injury mice induced by carbon tetrachloride (CCl4) and the mechanisms involved were investigated. Intraperitoneal injection of CCl4 (50 µl/kg) resulted in a significant increase in the levels of serum aspartate aminotransferase (AST), alanine aminotransferase (ALT) and hepatic malondialdehyde (MDA), also a marked enhancement in the expression of hepatic tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS) and nuclearfactor-kappa B (NF-κB). On the other hand, decreased glutathione (GSH) content and activities of glutathione transferase (GST), superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) were observed following CCl4 exposure. Nevertheless, all of these phenotypes were evidently reversed by preadministration of polydatin for 5 continuous days. The mRNA and protein expression levels of hepatic growth factor-beta1 (TGF-β1) were enhanced further by polydatin. These results suggest that polydatin protects mice against CCl4-induced liver injury through antioxidant stress and antiinflammatory effects. Polydatin may be an effective hepatoprotective agent and a promising candidate for the treatment of oxidative stress- and inflammation-related diseases.
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Affiliation(s)
- Hong Zhang
- Key Laboratory of Standardization of Chinese Herbal Medicines of Ministry of Education, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai, People's Republic of China
| | - Cheng-Hao Yu
- Key Laboratory of Standardization of Chinese Herbal Medicines of Ministry of Education, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China
| | - Yi-Ping Jiang
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai, People's Republic of China
| | - Cheng Peng
- Key Laboratory of Standardization of Chinese Herbal Medicines of Ministry of Education, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China
- * E-mail: (CP); (JYT); (HLX)
| | - Kun He
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai, People's Republic of China
| | - Jian-Yuan Tang
- Center for Drug Evaluation, State Food and Drug Administration, Beijing, People's Republic of China
- * E-mail: (CP); (JYT); (HLX)
| | - Hai-Liang Xin
- Department of Traditional Chinese Medicine, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
- * E-mail: (CP); (JYT); (HLX)
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Ohnishi H, Oka K, Mizuno S, Nakamura T. Identification of mannose receptor as receptor for hepatocyte growth factor β-chain: novel ligand-receptor pathway for enhancing macrophage phagocytosis. J Biol Chem 2012; 287:13371-81. [PMID: 22354962 DOI: 10.1074/jbc.m111.318568] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Hepatocyte growth factor (HGF), a heterodimer composed of the α-chain and β-chain, exerts multifunctional actions for tissue repair and homeostasis via its receptor, MET. HGF is cleaved by proteases secreted from inflammatory cells, and NK4 and β-chain remnant (HGF-β) are generated. Here, we provide evidence that HGF-β binds to a new receptor other than MET for promoting a host cell clearance system. By an affinity cross-linking, radiolabeled HGF-β was bound to liver non-parenchymal cells, particularly to Kupffer cells and sinusoidal endothelial cells, but not to parenchymal hepatocytes. The cross-linked complex was immunoprecipitated by anti-HGF antibody, but not anti-MET antibody, implying that HGF-β binds to non-parenchymal cells at a site distinct from MET. Mass spectrometric detection of the ligand receptor complex revealed that the binding site of HGF-β was the mannose receptor (MR). Actually, an ectopic expression of MR in COS-7 cells, which express no endogenous MR or MET, enabled HGF-β to bind these cells at a K(D) of 89 nM, demonstrating that MR is the new receptor for HGF-β. Interaction of HGF-β and MR was diminished by EGTA, and by an enzymatic digestion of HGF-β sugar chains, suggesting that MR may recognize the glycosylation site(s) of HGF-β in a Ca(2+)-dependent fashion. Notably, HGF-β, but not other MR ligands, enhanced the ingestion of latex beads, or of apoptotic neutrophils, by Kupffer cells, possibly via an F-actin-dependent pathway. Thus, the HGF-β·MR complex may provide a new pathway for the enhancement of cell clearance systems, which is associated with resolution of inflammation.
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Affiliation(s)
- Hiroyuki Ohnishi
- Kringle Pharma Joint Research Division for Regenerative Drug Discovery, Center for Advanced Science and Innovation, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
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Xiao J, Liong EC, Ching YP, Chang RCC, So KF, Fung ML, Tipoe GL. Lycium barbarum polysaccharides protect mice liver from carbon tetrachloride-induced oxidative stress and necroinflammation. JOURNAL OF ETHNOPHARMACOLOGY 2012; 139:462-470. [PMID: 22138659 DOI: 10.1016/j.jep.2011.11.033] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Revised: 11/14/2011] [Accepted: 11/17/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Lycium barbarum has been used as a traditional Chinese medicine to nourish liver, kidneys and the eyes. AIM OF THE STUDY We investigated the protective mechanisms of Wolfberry, Lycium barbarum polysaccharides (LBP) in carbon tetrachloride (CCl(4))-induced acute liver injury. MATERIALS AND METHODS Mice were intraperitoneally injected with a 50 μl/kg CCl(4) to induce acute hepatotoxicity (8h) and were orally fed with LBP 2 h before the CCl(4) injection. There were six experimental groups of mice (n=7-8 per group), namely: control mice (vehicle only; 1 mg/kg LBP or 10 mg/kg LBP), CCl(4)-treated mice and CCl(4)+LBP treated mice (1 mg/kg LBP or 10 mg/kg LBP). RESULTS Pre-treatment with LBP effectively reduced the hepatic necrosis and the serum ALT level induced by CCl(4) intoxication. LBP remarkably inhibited cytochrome P450 2E1 expression and restored the expression levels of antioxidant enzymes. It also decreased the level of nitric oxide metabolism and lipid peroxidation induced by CCl(4). LBP attenuated hepatic inflammation via down-regulation of proinflammatory mediators and chemokines. Furthermore, LBP promoted liver regeneration after CCl(4) treatment. The protective effects of LBP against hepatotoxicity were partly through the down-regulation of nuclear factor kappa-B activity. CONCLUSION LBP is effective in reducing necroinflammation and oxidative stress induced by a chemical toxin, thus it has a great potential use as a food supplement in the prevention of hepatic diseases.
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Affiliation(s)
- Jia Xiao
- Department of Anatomy, The University of Hong Kong, Hong Kong Special Administrative Region
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Abstract
Glycosaminoglycans (GAGs) are basic building blocks of the ground substance of the extracellular matrix and present at the cellular level as an important component of the glycocalyx covering the cell membrane. In addition to the general role of GAGs in maintaining the integrity of the cell and extracellular matrix by retaining water, certain GAGs exhibit anticoagulant and neuroprotective properties and serve as cell-surface receptors for various molecules. Although heparin, a highly sulfated GAG, has been used as a drug for more than 70 years due to its anticoagulant attributes, the neuroprotective properties of GAGs came into focus only in recent years. The discovery of some of the roles GAGs play in the pathomechanism of numerous neurodegenerative disorders as well as shedding light on the neuroprotective properties of these compounds in animal studies raised the possibility that GAGs may provide an entirely new avenue in the treatment of neurodegenerative diseases. Indeed, some GAGs were successfully used to improve the cognitive function of patients with various neurodegenerative conditions (Ban et al. (1991, 1992); Conti et al. (1989a, b); Passeri and Cucinotta, (1989); Santini (1989). Although the mechanism by which the GAGs exhibit neuroprotective properties is not entirely clear, there is a general consensus that the major factors of the neuroprotective attributes of GAGs include the impact of GAGs on amyloidogenesis and the regulatory action of GAGs in the apoptotic pathway.
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Affiliation(s)
- B Dudas
- Neuroendocrine Organization Laboratory, Lake Erie College of Osteopathic Medicine, PA 1509, USA.
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Kim SY. Transglutaminase 2: a new paradigm for NF-kappaB involvement in disease. ADVANCES IN ENZYMOLOGY AND RELATED AREAS OF MOLECULAR BIOLOGY 2011; 78:161-95. [PMID: 22220474 DOI: 10.1002/9781118105771.ch4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Soo-Youl Kim
- Division of Cancer Biology, Research Institute, National Cancer Center, Kyonggi-do, Republic of Korea
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Apocynin improves insulin resistance through suppressing inflammation in high-fat diet-induced obese mice. Mediators Inflamm 2011; 2010:858735. [PMID: 21403905 PMCID: PMC3043302 DOI: 10.1155/2010/858735] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Accepted: 12/17/2010] [Indexed: 02/06/2023] Open
Abstract
We investigated the effects of apocynin on high-fat diet- (HFD-) induced insulin resistance in C57BL/6 mice. After 12 weeks of HFD, the mice that exhibited insulin resistance then received 5 weeks of apocynin (2.4 g/L, in water). Following apocynin treatment, fasting glucose, insulin, and glucose tolerance test showed significant improvement in insulin sensitivity in HFD-fed mice. We demonstrated that serum levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and leptin were remarkably reduced with apocynin treatment. We also found that mRNA expression of TNF-α, IL-6, and monocyte chemoattractant protein-1 (MCP-1) in the liver and mRNA expression of TNF-α, IL-6, MCP-1, and leptin in adipose tissue were suppressed by apocynin. Furthermore, the activity of transcription factor NF-κB in the liver was significantly suppressed with apocynin treatment. These results suggest that apocynin may reduce inflammatory factors in the blood, liver, and adipose tissue, resulting in amelioration of insulin resistance in HFD-fed mice.
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Oh PS, Lee J, Lim KT. Inhibitory effect of MIL glycoprotein on expression of pro-inflammatory mediators in carbon tetrachloride-induced mice liver damage. J Appl Toxicol 2010; 30:754-60. [DOI: 10.1002/jat.1557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2010] [Revised: 04/18/2010] [Accepted: 04/19/2010] [Indexed: 01/25/2023]
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Laskin DL. Macrophages and inflammatory mediators in chemical toxicity: a battle of forces. Chem Res Toxicol 2010; 22:1376-85. [PMID: 19645497 DOI: 10.1021/tx900086v] [Citation(s) in RCA: 206] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Macrophages function as control switches of the immune system, providing a balance between pro- and anti-inflammatory responses. To accomplish this, they develop into different subsets: classically (M1) or alternatively (M2) activated macrophages. Whereas M1 macrophages display a cytotoxic, proinflammatory phenotype, much like the soldiers of The Dark Side of The Force in the Star Wars movies, M2 macrophages, like Jedi fighters, suppress immune and inflammatory responses and participate in wound repair and angiogenesis. Critical to the actions of these divergent or polarized macrophage subpopulations is the regulated release of inflammatory mediators. When properly controlled, M1 macrophages effectively destroy invading pathogens, tumor cells, and foreign materials. However, when M1 activation becomes excessive or uncontrolled, these cells can succumb to The Dark Side, releasing copious amounts of cytotoxic mediators that contribute to disease pathogenesis. The activity of M1 macrophages is countered by The Force of alternatively activated M2 macrophages, which release anti-inflammatory cytokines, growth factors, and mediators involved in extracellular matrix turnover and tissue repair. It is the balance in the production of mediators by these two macrophage subpopulations that ultimately determines the outcome of the tissue response to chemical toxicants.
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Affiliation(s)
- Debra L Laskin
- Department of Pharmacology and Toxicology, Rutgers University, Ernest Mario School of Pharmacy, Piscataway, New Jersey 08854
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Campo GM, Avenoso A, Campo S, Traina P, D'Ascola A, Calatroni A. Glycosaminoglycans reduced inflammatory response by modulating toll-like receptor-4 in LPS-stimulated chondrocytes. Arch Biochem Biophys 2009; 491:7-15. [PMID: 19800307 DOI: 10.1016/j.abb.2009.09.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2009] [Revised: 09/26/2009] [Accepted: 09/28/2009] [Indexed: 02/07/2023]
Abstract
Lipopolysaccharide (LPS)-mediated activation of toll-like receptor-4 (TLR-4) complex induces specific signaling pathways, such as the myeloid differentiation primary response protein-88 (MyD88) and the tumor necrosis factor receptor-associated factor-6 (TRAF-6), involving NF-kappaB activation. As previous data reported that hyaluronan (HA) and heparan sulfate (HS) may interact with TLR-4, the aim of this study was to investigate whether glycosaminoglycans (GAGs) may modulate the TLR-4 receptor in a model of LPS-induced inflammatory cytokines in mouse chondrocytes. LPS stimulation up-regulated all inflammation parameters. The GAG treatment produced various effects: HA reduced MyD88 and TRAF-6 levels and NF-kappaB activation at the higher dose only, and exerted a very low anti-inflammatory effect; chondroitin-4-sulfate (C4S) and chondroitin-6-sulfate significantly inhibited MyD88, TRAF-6 and NF-kappaB activation, the inflammation cytokines, and inducible nitric oxide synthase; HS, like C4S, significantly reduced MyD88, TRAF-6, NF-kappaB and inflammation. Specific TLR-4 blocking antibody confirmed that TLR-4 was the target of GAG action.
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Affiliation(s)
- Giuseppe M Campo
- Department of Biochemical, Physiological and Nutritional Sciences, Medical Chemistry Section, School of Medicine, University of Messina, Policlinico Universitario, Messina, Italy.
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