1
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Osna NA, Tikhanovich I, Ortega-Ribera M, Mueller S, Zheng C, Mueller J, Li S, Sakane S, Weber RCG, Kim HY, Lee W, Ganguly S, Kimura Y, Liu X, Dhar D, Diggle K, Brenner DA, Kisseleva T, Attal N, McKillop IH, Chokshi S, Mahato R, Rasineni K, Szabo G, Kharbanda KK. Alcohol-Associated Liver Disease Outcomes: Critical Mechanisms of Liver Injury Progression. Biomolecules 2024; 14:404. [PMID: 38672422 PMCID: PMC11048648 DOI: 10.3390/biom14040404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/20/2024] [Accepted: 03/24/2024] [Indexed: 04/28/2024] Open
Abstract
Alcohol-associated liver disease (ALD) is a substantial cause of morbidity and mortality worldwide and represents a spectrum of liver injury beginning with hepatic steatosis (fatty liver) progressing to inflammation and culminating in cirrhosis. Multiple factors contribute to ALD progression and disease severity. Here, we overview several crucial mechanisms related to ALD end-stage outcome development, such as epigenetic changes, cell death, hemolysis, hepatic stellate cells activation, and hepatic fatty acid binding protein 4. Additionally, in this review, we also present two clinically relevant models using human precision-cut liver slices and hepatic organoids to examine ALD pathogenesis and progression.
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Affiliation(s)
- Natalia A. Osna
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68106, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68106, USA
| | - Irina Tikhanovich
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA;
| | - Martí Ortega-Ribera
- Department of Medicine, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA; (M.O.-R.); (G.S.)
| | - Sebastian Mueller
- Center for Alcohol Research, University of Heidelberg, 69120 Heidelberg, Germany; (S.M.); (C.Z.); (J.M.); (S.L.)
- Viscera AG Bauchmedizin, 83011 Bern, Switzerland
| | - Chaowen Zheng
- Center for Alcohol Research, University of Heidelberg, 69120 Heidelberg, Germany; (S.M.); (C.Z.); (J.M.); (S.L.)
| | - Johannes Mueller
- Center for Alcohol Research, University of Heidelberg, 69120 Heidelberg, Germany; (S.M.); (C.Z.); (J.M.); (S.L.)
| | - Siyuan Li
- Center for Alcohol Research, University of Heidelberg, 69120 Heidelberg, Germany; (S.M.); (C.Z.); (J.M.); (S.L.)
| | - Sadatsugu Sakane
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA;
| | - Raquel Carvalho Gontijo Weber
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA;
| | - Hyun Young Kim
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA;
| | - Wonseok Lee
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA;
| | - Souradipta Ganguly
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA;
| | - Yusuke Kimura
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA;
| | - Xiao Liu
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA;
| | - Debanjan Dhar
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
| | - Karin Diggle
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA;
| | - David A. Brenner
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (S.S.); (R.C.G.W.); (H.Y.K.); (W.L.); (S.G.); (Y.K.); (X.L.); (D.D.); (K.D.); (D.A.B.)
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Tatiana Kisseleva
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA;
| | - Neha Attal
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC 28203, USA; (N.A.); (I.H.M.)
| | - Iain H. McKillop
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC 28203, USA; (N.A.); (I.H.M.)
| | - Shilpa Chokshi
- The Roger Williams Institute of Hepatology, Foundation for Liver Research, London SE59NT, UK;
- School of Microbial Sciences, King’s College, London SE59NT, UK
| | - Ram Mahato
- Department of Pharmaceutical Science, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68106, USA;
| | - Karuna Rasineni
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68106, USA;
| | - Gyongyi Szabo
- Department of Medicine, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA; (M.O.-R.); (G.S.)
| | - Kusum K. Kharbanda
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68106, USA
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68106, USA;
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA
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2
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Jin R, Xiao Z, Nakai M, Huang GH. Insight into the regulation of the Nrf2 pathway in response to ascovirus infection in Spodoptera exigua. PEST MANAGEMENT SCIENCE 2023; 79:1123-1130. [PMID: 36349417 DOI: 10.1002/ps.7284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/30/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Ascoviruses are a type of entomopathogenic microorganism with high biological pest control potential and are expected to contribute to the natural control of lepidopteran pests. However, knowledge of the molecular mechanism underlying the biocidal activity of ascovirus on its host insects remains limited. RESULTS In this study, the relative enzyme activity of superoxide dismutase and peroxidase, as well as the expression level of Spodoptera exigua peroxidase (SePOD), were found to be significantly increased at 6 h post infection with Heliothis virescens ascovirus 3h (HvAV-3h). H2 O2 accumulation and enhanced expression of NADPH Oxidase (SeNOX) were also observed. In addition, Nuclear Factor erythroid 2-Related Factor 2 (SeNrf2) and muscle aponeurosis fibromatosis (SeMaf) were overexpressed following infection with HvAV-3h. Silencing of SeNrf2 decreased the expression of SePOD, whereas the mortality of SeNrf2-silenced larvae and viral genome copy number also increased. Further RNA interference of SeNOX significantly decreased expression of SeNrf2 and SePOD and therefore increased the mortality and viral genome copy number of the ascovirus-infected host. CONCLUSION The HvAV-3h activated Nrf2/ARE pathway of S. exigua and reactive oxygen species were found to respond to ascovirus infection by regulating alterations in antioxidant enzyme genes mediated by the host Nrf2/ARE pathway. These findings enhance our knowledge of ascovirus-host interactions and lay the foundation for the application of ascoviruses in biological pest control. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Ruoheng Jin
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, People's Republic of China
| | - Zhengkun Xiao
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, People's Republic of China
| | - Madoka Nakai
- Department of Applied Biological Science, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Guo-Hua Huang
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, People's Republic of China
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3
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Thannickal VJ, Jandeleit‐Dahm K, Szyndralewiez C, Török NJ. Pre-clinical evidence of a dual NADPH oxidase 1/4 inhibitor (setanaxib) in liver, kidney and lung fibrosis. J Cell Mol Med 2023; 27:471-481. [PMID: 36658776 PMCID: PMC9930438 DOI: 10.1111/jcmm.17649] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/21/2022] [Accepted: 11/26/2022] [Indexed: 01/21/2023] Open
Abstract
Fibrosis describes a dysregulated tissue remodelling response to persistent cellular injury and is the final pathological consequence of many chronic diseases that affect the liver, kidney and lung. Nicotinamide adenine dinucleotide phosphate (NADPH)-oxidase (NOX) enzymes produce reactive oxygen species (ROS) as their primary function. ROS derived from NOX1 and NOX4 are key mediators of liver, kidney and lung fibrosis. Setanaxib (GKT137831) is a first-in-class, dual inhibitor of NOX1/4 and is the first NOX inhibitor to progress to clinical trial investigation. The anti-fibrotic effects of setanaxib in liver, kidney and lung fibrosis are supported by multiple lines of pre-clinical evidence. However, despite advances in our understanding, the precise roles of NOX1/4 in fibrosis require further investigation. Additionally, there is a translational gap between the pre-clinical observations of setanaxib to date and the applicability of these to human patients within a clinical setting. This narrative review critically examines the role of NOX1/4 in liver, kidney and lung fibrosis, alongside the available evidence investigating setanaxib as a therapeutic agent in pre-clinical models of disease. We discuss the potential clinical translatability of this pre-clinical evidence, which provides rationale to explore NOX1/4 inhibition by setanaxib across various fibrotic pathologies in clinical trials involving human patients.
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Affiliation(s)
- Victor J. Thannickal
- John W. Deming Department of MedicineTulane University School of MedicineNew OrleansLouisianaUSA
- Southeast Louisiana Veterans Healthcare SystemNew OrleansLouisianaUSA
| | - Karin Jandeleit‐Dahm
- Department of Diabetes, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
| | - Cédric Szyndralewiez
- Calliditas Therapeutics Suisse SAGenevaSwitzerland
- Present address:
Pherecydes PharmaNantesFrance
| | - Natalie J. Török
- Division of Gastroenterology and Hepatology, Department of MedicineStanford UniversityStanfordCaliforniaUSA
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4
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Sadiq IZ. Free Radicals and Oxidative Stress: Signaling Mechanisms, Redox Basis for Human Diseases, and Cell Cycle Regulation. Curr Mol Med 2023; 23:13-35. [PMID: 34951363 DOI: 10.2174/1566524022666211222161637] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 11/03/2021] [Accepted: 11/08/2021] [Indexed: 12/16/2022]
Abstract
Free radicals contain one or more unpaired electrons in their valence shell, thus making them unstable, short-lived, and highly reactive species. Excessive generation of these free radicals ultimately leads to oxidative stress causing oxidation and damage to significant macromolecules in the living system and essentially disrupting signal transduction pathways and antioxidants equilibrium. At lower concentrations, ROS serves as "second messengers," influencing many physiological processes in the cell. However, higher concentrations beyond cell capacity cause oxidative stress, contributing to human pathologies such as diabetes, cancer, Parkinson's disease, cardiovascular diseases, cataract, asthma, hypertension, atherosclerosis, arthritis, and Alzheimer's disease. Signaling pathways such as NF-κB, MAPKs, PI3K/Akt/ mTOR, and Keap1-Nrf2- ARE modulate the detrimental effects of oxidative stress by increasing the expression of cellular antioxidant defenses, phase II detoxification enzymes, and decreased production of ROS. Free radicals such as H2O2 are indeed needed for the advancement of the cell cycle as these molecules influence DNA, proteins, and enzymes in the cell cycle pathway. In the course of cell cycle progression, the cellular redox environment becomes more oxidized, moving from the G1 phase, becoming higher in G2/M and moderate in the S phase. Signals in the form of an increase in cellular pro-oxidant levels are required, and these signals are often terminated by a rise in the amount of antioxidants and MnSOD with a decrease in the level of cyclin D1 proteins. Therefore, understanding the mechanism of cell cycle redox regulation will help in the therapy of many diseases.
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Affiliation(s)
- Idris Zubairu Sadiq
- Department of Biochemistry, Faculty of life Sciences, Ahmadu Bello University, Zaria-Nigeria
- Department of Biochemistry, Faculty of Sciences, Maryam Abacha American University of Niger, ADS Avenue, Roi Muhammad VI Du Maroc Maradi, Republique Du Niger
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5
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Spartalis M. Genome Editing and Atrial Fibrillation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1396:129-137. [DOI: 10.1007/978-981-19-5642-3_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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6
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Guo X, Li Y, Wang W, Wang L, Hu S, Xiao X, Hu C, Dai Y, Zhang Y, Li Z, Li J, Ma X, Zeng J. The construction of preclinical evidence for the treatment of liver fibrosis with quercetin: A systematic review and meta-analysis. Phytother Res 2022; 36:3774-3791. [PMID: 35918855 DOI: 10.1002/ptr.7569] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 12/09/2022]
Abstract
Quercetin (3,3',4',5,7-pentahydroxyflavone), a flavonoid, is widely found in fruits and vegetables and exerts broad-spectrum pharmacological effects in the liver. Many studies have explored the bioactivity of quercetin in the treatment of liver fibrosis. Hence, through a systematic review and biological mechanism evaluation, this study aimed to construct a body of preclinical evidence for the treatment of liver fibrosis using quercetin. The literature used in this study was mainly obtained from four databases, and the SYRCLE list (10 items) was used to evaluate the quality of the included literature. A meta-analysis of HA, LN, and other indicators was performed via STATA 15.0 software. Subgroup analyses based on animal species and model protocol were performed to further obtain detailed results. Moreover, the therapeutic mechanism of quercetin was summarized in a directed network form based on a comprehensive search of the literature. After screening, a total of 14 articles (comprising 15 studies) involving 254 animals were included. The results from the analysis showed that the corresponding liver function indexes, such as the levels of HA and LN, were significantly improved in the quercetin group compared with the model group, and liver function, such as the levels of AST and ALT, were also improved in the quercetin group. The species- and model-based subgroup analyses of AST and ALT revealed that quercetin exerts a significant effect. The therapeutic mechanism of quercetin was shown to be related to multiple pathways involving anti-inflammatory and antioxidant activities and lipid accumulation, including regulation of the TGF-β, α-SMA, ROS, and P-AMPK pathways. The results showed that quercetin exerts an obvious effect on liver fibrosis, and more prominent improvement effects on liver function and liver fibrosis indicators were obtained with a dose of 5-200 mg during a treatment course ranging from 4 to 8 weeks. Quercetin might be a promising therapeutic for liver fibrosis.
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Affiliation(s)
- Xiaochuan Guo
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.,State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuanyuan Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Weizheng Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Luyao Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Sihan Hu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaolin Xiao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.,State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Caiyu Hu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yao Dai
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yiheng Zhang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ziyu Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Junlin Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiao Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jinhao Zeng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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7
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Nascè A, Gariani K, Jornayvaz FR, Szanto I. NADPH Oxidases Connecting Fatty Liver Disease, Insulin Resistance and Type 2 Diabetes: Current Knowledge and Therapeutic Outlook. Antioxidants (Basel) 2022; 11:antiox11061131. [PMID: 35740032 PMCID: PMC9219746 DOI: 10.3390/antiox11061131] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/30/2022] [Accepted: 06/03/2022] [Indexed: 12/15/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD), characterized by ectopic fat accumulation in hepatocytes, is closely linked to insulin resistance and is the most frequent complication of type 2 diabetes mellitus (T2DM). One of the features connecting NAFLD, insulin resistance and T2DM is cellular oxidative stress. Oxidative stress refers to a redox imbalance due to an inequity between the capacity of production and the elimination of reactive oxygen species (ROS). One of the major cellular ROS sources is NADPH oxidase enzymes (NOX-es). In physiological conditions, NOX-es produce ROS purposefully in a timely and spatially regulated manner and are crucial regulators of various cellular events linked to metabolism, receptor signal transmission, proliferation and apoptosis. In contrast, dysregulated NOX-derived ROS production is related to the onset of diverse pathologies. This review provides a synopsis of current knowledge concerning NOX enzymes as connective elements between NAFLD, insulin resistance and T2DM and weighs their potential relevance as pharmacological targets to alleviate fatty liver disease.
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Affiliation(s)
- Alberto Nascè
- Service of Endocrinology, Diabetes, Nutrition and Patient Therapeutic Education, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland; (A.N.); (K.G.)
| | - Karim Gariani
- Service of Endocrinology, Diabetes, Nutrition and Patient Therapeutic Education, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland; (A.N.); (K.G.)
- Department of Medicine, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva Medical School, 1211 Geneva, Switzerland
| | - François R. Jornayvaz
- Service of Endocrinology, Diabetes, Nutrition and Patient Therapeutic Education, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland; (A.N.); (K.G.)
- Department of Medicine, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva Medical School, 1211 Geneva, Switzerland
- Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- Correspondence: (F.R.J.); (I.S.)
| | - Ildiko Szanto
- Service of Endocrinology, Diabetes, Nutrition and Patient Therapeutic Education, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland; (A.N.); (K.G.)
- Department of Medicine, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva Medical School, 1211 Geneva, Switzerland
- Correspondence: (F.R.J.); (I.S.)
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8
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Nassif RM, Chalhoub E, Chedid P, Hurtado-Nedelec M, Raya E, Dang PMC, Marie JC, El-Benna J. Metformin Inhibits ROS Production by Human M2 Macrophages via the Activation of AMPK. Biomedicines 2022; 10:biomedicines10020319. [PMID: 35203528 PMCID: PMC8869356 DOI: 10.3390/biomedicines10020319] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/11/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
Metformin (1,1-dimethylbiguanide hydrochloride) is the most commonly used drug to treat type II diabetic patients. It is believed that this drug has several other beneficial effects, such as anti-inflammatory and anticancer effects. Here, we wanted to evaluate the effect of metformin on the production of reactive oxygen species (ROS) by human macrophages. Macrophages are generated in vivo from circulating monocytes depending on the local tissue environment. In vitro proinflammatory macrophages (M1) and anti-inflammatory macrophages (M2) can be generated by culturing monocytes in the presence of different cytokines, such as GM-CSF or M-CSF, respectively. We show that metformin selectively inhibited human monocyte differentiation into proinflammatory macrophages (M1) without inhibiting their differentiation into anti-inflammatory macrophages (M2). Moreover, we demonstrate that, in response to LPS, M2 macrophages produced ROS, which could be very harmful for nearby tissues, and metformin inhibited this process. Interestingly, metformin with LPS induced activation of the adenosine-monophosphate-activated protein kinase (AMPK) and pharmacological activation of AMPK by AICAR, a known AMPK activator, decreased ROS production, whereas the deletion of AMPK in mice dramatically enhanced ROS production in different types of immune cells. These results suggest that metformin exhibits anti-inflammatory effects by inhibiting the differentiation of human monocytes into M1 macrophages and by limiting ROS production by macrophages via the activation of AMPK.
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Affiliation(s)
- Rana M. Nassif
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Elias Chalhoub
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Pia Chedid
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Margarita Hurtado-Nedelec
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Elia Raya
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Pham My-Chan Dang
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Jean-Claude Marie
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Jamel El-Benna
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
- Correspondence: ; Tel.: +33-1-57-27-77-23; Fax: +33-1-57-27-74-61
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9
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Cioarca-Nedelcu R, Atanasiu V, Stoian I. Alcoholic liver disease-from steatosis to cirrhosis - a biochemistry approach. J Med Life 2022; 14:594-599. [PMID: 35027961 PMCID: PMC8742892 DOI: 10.25122/jml-2021-0081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 10/07/2021] [Indexed: 12/20/2022] Open
Abstract
Nowadays, chronic alcoholism and its health implications represent a global concern. Over three million deaths are linked to chronic alcohol intake every year. This article aims to spread awareness about the negative impact ethanol can have on almost every organ in the body, especially the liver. Understanding ethanol metabolism and the cellular pathways through which alcohol increases liver oxidative stress may prevent a broad spectrum of hepatic lesions such as steatosis, steatohepatitis, and, ultimately, cirrhosis. After a short review of ethanol metabolism and liver oxidative stress, each hepatic lesion will be individually discussed regarding the mechanism of apparition, treatment, and future targeted therapies.
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Affiliation(s)
| | - Valeriu Atanasiu
- Biochemistry Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Irina Stoian
- Biochemistry Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
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10
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Chronic exposure to nonylphenol induces oxidative stress and liver damage in male zebrafish (Danio rerio): Mechanistic insight into cellular energy sensors, lipid accumulation and immune modulation. Chem Biol Interact 2022; 351:109762. [PMID: 34843692 DOI: 10.1016/j.cbi.2021.109762] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/06/2021] [Accepted: 11/25/2021] [Indexed: 02/07/2023]
Abstract
Nonylphenol (NP), an environmentally persistent and toxic endocrine-disrupting chemical with estrogenic properties, has severe implications on humans and wildlife. Accumulating evidence demonstrates the toxic response of NP on the developmental process, nervous system, and reproductive parameters. Although NP exposure has been implicated in chronic liver injury, the underlying events associated with hepatic pathophysiology remain less investigated. Using male zebrafish (Danio rerio) as the model, the present study investigates the impact of environmentally relevant concentrations of NP (50 and 100 μg/L, 21 days) on hepatic redox homeostasis vis-à-vis cellular energy sensors, inflammatory response, and cell death involving a mechanistic insight into estrogen receptor (ER) modulation. Our results demonstrate that congruent with significant alteration in transcript abundance of antioxidant enzymes (SOD1, SOD2, Catalase, GPx1a, GSTα1), chronic exposure to NP promotes ROS synthesis, more specifically superoxide anions and H2O2 levels, and lipid peroxidation potentially through elevated NOX4 expression. Importantly, NP perturbation of markers associated with fatty acid biosynthesis (srebf1/fasn) and cellular energy-sensing network (sirt1/ampkα/pgc1α) indicates dysregulated energy homeostasis, metabolic disruption, and macrovesicular steatosis, albeit with differential sensitivity at the dose level tested. Besides, elevated p38-MAPK phosphorylation (activation) together with loss of ER homeostasis at both mRNA (esr1, esr2a, esr2b) and protein (ERα, ERβ) levels suggest that NP modulation of ER abundance may have a significant influence on hepatic events. Elevated expression of inflammatory markers (TLR4, p-NF-κB, TNF-α, IL-6, IL-1β, and NOS2) and pro-apoptotic and necrotic regulators, e.g., Bax, caspase- 8, -9 and cleaved PARP1 (50 kDa), indicate chronic inflammation and hepatotoxicity in NP-exposed males. Collectively, elevated oxidative stress, metabolic dysregulation and immune modulation may lead to chronic liver injury in organisms exposed to metabolic disrupting chemicals.
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11
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Thuy LTT, Hai H, Kawada N. Role of cytoglobin, a novel radical scavenger, in stellate cell activation and hepatic fibrosis. Clin Mol Hepatol 2020; 26:280-293. [PMID: 32492766 PMCID: PMC7364355 DOI: 10.3350/cmh.2020.0037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/13/2020] [Indexed: 12/17/2022] Open
Abstract
Cytoglobin (Cygb), a stellate cell-specific globin, has recently drawn attention due to its association with liver fibrosis. In the livers of both humans and rodents, Cygb is expressed only in stellate cells and can be utilized as a marker to distinguish stellate cells from hepatic fibroblast-derived myofibroblasts. Loss of Cygb accelerates liver fibrosis and cancer development in mouse models of chronic liver injury including diethylnitrosamine-induced hepatocellular carcinoma, bile duct ligation-induced cholestasis, thioacetamide-induced hepatic fibrosis, and choline-deficient L-amino acid-defined diet-induced non-alcoholic steatohepatitis. This review focuses on the history of research into the role of reactive oxygen species and nitrogen species in liver fibrosis and discusses the current perception of Cygb as a novel radical scavenger with an emphasis on its role in hepatic stellate cell activation and fibrosis.
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Affiliation(s)
- Le Thi Thanh Thuy
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Hoang Hai
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Norifumi Kawada
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
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12
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Ghoreshi ZAS, Kabirifar R, Khodarahmi A, Karimollah A, Moradi A. The preventive effect of atorvastatin on liver fibrosis in the bile duct ligation rats via antioxidant activity and down-regulation of Rac1 and NOX1. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:30-35. [PMID: 32395205 PMCID: PMC7206847 DOI: 10.22038/ijbms.2019.33663.8047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Objectives Atorvastatin is a cholesterol-lowering agent capable of inhibiting 3-hydroxy-3-methylglutaryl coenzyme A reductase. Recent studies have demonstrated new facets of atorvastatin, such as antioxidant and anti-fibrotic properties. We investigated the effect of atorvastatin on hepatic injury via the measurement of the antioxidant capacity and protein expression of NOX1, Rac1-GTP, and Rac1 in a rat biliary duct ligation (BDL) model. Materials and Methods This study is regarded as experimental interventional research in which a total of 32 adult male Wistar rats (200-250 g) were assigned to 4 groups (eight rats per group) as follows: Control group; Control + At group (15 mg\kg\day atorvastatin); BDL group, and BDL+ At group (15 mg\kg\day atorvastatin). Expression levels of Rac1, NOX1, and Rac1-GTP were determined by western blot analysis. Besides, specific biomarkers of oxidative stress in hepatic tissues of all animals were also analyzed. Results Atorvastatin reduced liver injury via a decrease in the expression of NOX1, Rac1-GTP, and Rac1 in the BDL group (P<0.05), while the increased contents of protein thiol groups were observed, and the protein carbonylation was decreased in atorvastatin-treated BDL rats compared to the BDL group (P<0.05). Also, administration of atorvastatin in the BDL group significantly lowered oxidative stress through increasing the activity of catalase and superoxide dismutase in comparison with the BDL group (P<0.05). Conclusion It seems that atorvastatin has potential advantages in mitigation of liver fibrosis by a decrease in the expression of NOX1, Rac1-GTP, and Rac1, along with, a reduction in oxidative stress of liver tissues in rats induced by BDL.
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Affiliation(s)
- Zohreh-Al-Sadat Ghoreshi
- Department of Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Razieh Kabirifar
- Department of Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Ameneh Khodarahmi
- Department of Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Alireza Karimollah
- Department of Pharmacology, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Ali Moradi
- Department of Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
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13
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Trivedi A, Hoffman J, Arora R. Gene therapy for atrial fibrillation - How close to clinical implementation? Int J Cardiol 2019; 296:177-183. [PMID: 31439427 PMCID: PMC6907402 DOI: 10.1016/j.ijcard.2019.07.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 07/03/2019] [Accepted: 07/16/2019] [Indexed: 12/16/2022]
Abstract
In this review we examine the current state of gene therapy for the treatment of cardiac arrhythmias. We describe advances and challenges in successfully creating and incorporating gene vectors into the myocardium. After summarizing the current scientific research in gene transfer technology we then focus on the most promising areas of gene therapy, the treatment of atrial fibrillation and ventricular tachyarrhythmias. We review the scientific literature to determine how gene therapy could potentially be used to treat patients with cardiac arrhythmias.
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Affiliation(s)
- Amar Trivedi
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University - Feinberg School of Medicine, United States of America
| | - Jacob Hoffman
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University - Feinberg School of Medicine, United States of America
| | - Rishi Arora
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University - Feinberg School of Medicine, United States of America.
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14
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Feillet-Coudray C, Fouret G, Vigor C, Bonafos B, Jover B, Blachnio-Zabielska A, Rieusset J, Casas F, Gaillet S, Landrier JF, Durand T, Coudray C. Long-Term Measures of Dyslipidemia, Inflammation, and Oxidative Stress in Rats Fed a High-Fat/High-Fructose Diet. Lipids 2019; 54:81-97. [PMID: 30767221 DOI: 10.1002/lipd.12128] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 01/04/2023]
Abstract
Inflammation and oxidative stress are thought to be involved in, or associated with, the development of obesity, dyslipidemia, hepatic steatosis, and insulin resistance. This work was designed to determine the evolution of inflammation and oxidative stress during onset and progression of hepatic steatosis and glucose intolerance. Seventy-five male Wistar rats were divided to control and high-fat high-fructose (HFHFr) groups. A subgroup of each group was sacrificed at 4, 8, 12, 16, and 20 weeks. HFHFr-fed rats exhibited overweight, glucose intolerance, and hepatic steatosis with increased contents of hepatic diacylglycerols and ceramides. The HFHFr diet increased hepatic interleukin 6 (IL-6) protein and adipose tissue CCL5 gene expression and hepatic nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity but not mitochondrial reactive oxygen species (ROS) production. The HFHFr diet decreased plasma and liver levels of isoprostanoid metabolites as well as plasma thiobarbituric acid-reactive substance (TBARS) levels. Hepatic glutathione content was decreased with a moderate decrease in superoxide dismutase (SOD) and glutathione peroxidase (GPx) with the HFHFr diet. Overall, HFHFr diet led to hepatic lipid accumulation and glucose intolerance, which were accompanied by only moderate inflammation and oxidative stress. Most of these changes occurred at the same time and as early as 8 or 12 weeks of diet treatment. This implies that oxidative stress may be the result, not the cause, of these metabolic alterations, and suggests that marked hepatic oxidative stress should probably occur at the end of the steatotic stage to result in frank insulin resistance and steatohepatitis. These findings need to be further evaluated in other animal species as well as in human studies.
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Affiliation(s)
- Christine Feillet-Coudray
- DMEM (Dynamique Musculaire & Métabolisme) INRA, University of Montpellier, 2 Place Viala, 34060, Montpellier, France
| | - Gilles Fouret
- DMEM (Dynamique Musculaire & Métabolisme) INRA, University of Montpellier, 2 Place Viala, 34060, Montpellier, France
| | - Claire Vigor
- Institut des Biomolécules Max Mousseron, IBMM, University of Montpellier, CNRS, ENSCM, 15 Avenue Charles Flahault, 34090, Montpellier, France
| | - Béatrice Bonafos
- DMEM (Dynamique Musculaire & Métabolisme) INRA, University of Montpellier, 2 Place Viala, 34060, Montpellier, France
| | - Bernard Jover
- PhyMedExp, University of Montpellier, INSERM, CNRS, 371 avenue Doyen Gaston Giraud, 34295, Montpellier, France
| | - Agnieszka Blachnio-Zabielska
- Physiology Department, Medical University of Bialystok, Jana Kilińskiego 1, 15-089, Bialystok, Poland.,Epidemiology and Metabolic Disorders Department, Medical University of Bialystok, Jana Kilińskiego 1, 15-089, Bialystok, Poland
| | - Jennifer Rieusset
- UMR U1060, INSERM, Faculté de médecine Lyon-Sud, 165 Chemin du Grand Revoyet, 69921 Oullins, France
| | - François Casas
- DMEM (Dynamique Musculaire & Métabolisme) INRA, University of Montpellier, 2 Place Viala, 34060, Montpellier, France
| | - Sylvie Gaillet
- DMEM (Dynamique Musculaire & Métabolisme) INRA, University of Montpellier, 2 Place Viala, 34060, Montpellier, France
| | - Jean Francois Landrier
- Aix Marseille University, INSERM, INRA, C2VN, 27 boulevard Jean Moulin 13385, Marseille, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron, IBMM, University of Montpellier, CNRS, ENSCM, 15 Avenue Charles Flahault, 34090, Montpellier, France
| | - Charles Coudray
- DMEM (Dynamique Musculaire & Métabolisme) INRA, University of Montpellier, 2 Place Viala, 34060, Montpellier, France
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15
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Xie ZY, Xiao ZH, Wang FF. Inhibition of autophagy reverses alcohol-induced hepatic stellate cells activation through activation of Nrf2-Keap1-ARE signaling pathway. Biochimie 2018; 147:55-62. [PMID: 29305174 DOI: 10.1016/j.biochi.2017.12.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 12/28/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Numerous documents have indicated a critical role of autophagy in alcoholic liver fibrosis (ALF), but few papers have reported its function in hepatic stellate cells (HSCs) activation. The current study aimed to investigate the regulation effect of autophagy in HSCs activation, in further to explore the underlying mechanism involved. METHODS HSC-T6 cells were treated with ethanol, 3-MA (autophagy inhibitor) or rapamycin (autophagy inducer), and cells were also transfected with si-Nrf2 or si-Keap1. Moreover, ALF animal model was established and Nrf-2(-/-), Keap1 (-/-) mice were purchased. The level of autophagy, the expression of α-SMA and CoL1A1, and Nrf2 antioxidant response were evaluated in stellate cells and livers. RESULTS Ethanol treatment in cultured cells increased autophagy, oxidative stress level and promoted HSCs activation. Inhibition of autophagy reversed alcohol-induced HSCs activation and suppressed HSCs oxidative stress. Nrf2-Keap1-ARE pathway was involved in HSCs activation and oxidative stress regulated by autophagy. In addition, through in vivo study, we found that inhibition of autophagy could alleviate alcoholic fatty liver injury in ALF model mice and Nrf2 signaling was involved in autophagy regulated HSCs activation. CONCLUSION These data implicated mechanisms underlying autophagy in regulating the fibrogenic response in HSCs activation.
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Affiliation(s)
- Zheng-Yuan Xie
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| | - Zhi-Hua Xiao
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Fen-Fen Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
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16
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Mortezaee K, Khanlarkhani N. Melatonin application in targeting oxidative‐induced liver injuries: A review. J Cell Physiol 2017; 233:4015-4032. [DOI: 10.1002/jcp.26209] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 10/04/2017] [Indexed: 01/03/2023]
Affiliation(s)
- Keywan Mortezaee
- Department of AnatomySchool of MedicineKurdistan University of Medical SciencesSanandajIran
| | - Neda Khanlarkhani
- Department of Anatomy, School of MedicineTehran University of Medical SciencesTehranIran
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17
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Yu SS, Chen B, Huang CK, Zhou JJ, Huang X, Wang AJ, Li BM, He WH, Zhu X. Ursolic acid suppresses TGF-β1-induced quiescent HSC activation and transformation by inhibiting NADPH oxidase expression and Hedgehog signaling. Exp Ther Med 2017; 14:3577-3582. [PMID: 29042951 PMCID: PMC5639307 DOI: 10.3892/etm.2017.5001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 08/09/2017] [Indexed: 12/15/2022] Open
Abstract
Activation of quiescent hepatic stellate cells (q-HSCs) and their transformation to myofibroblasts (MFBs) is a key event in liver fibrosis. Hedgehog (Hh) signaling stimulates q-HSCs to differentiate into MFBs, and NADPH oxidase (NOX) may be involved in regulating Hh signaling. The author's preliminary study demonstrated that ursolic acid (UA) selectively induces apoptosis in activated HSCs and inhibits their proliferation in vitro via negative regulation of NOX activity and expression. However, the effect of UA on q-HSCs remains to be elucidated. The present study aimed to investigate the effect of UA on q-HSC activation and HSC transformation and to observe alterations in the NOX and Hh signaling pathways during q-HSC activation. q-HSC were isolated from adult male Sprague-Dawley rats. Following culture for 3 days, the cells were treated with or without transforming growth factor-β1 (TGF-β1; 5 µg/l); intervention groups were pretreated with UA (40 µM) or diphenyleneiodonium chloride (DPI; 10 µM) for 30 min prior to addition of TGF-β1. mRNA and protein expression of NOX and Hh signaling components and markers of q-HSC activation were examined by western blotting and reverse transcription-polymerase chain reaction. TGF-β1 induced activation of q-HSCs, with increased expression of α-smooth muscle actin (α-SMA) and type I collagen. In addition, expression of NOX subunits (gp91phox, p67phox, p22phox, and Rac1) and Hh signaling components, including sonic Hh, sterol-4-alpha-methyl oxidase, and Gli family zinc finger 2, were upregulated in activated HSCs. Pretreatment of q-HSCs with UA or DPI prior to TGF-β1 significantly downregulated expression of NOX subunits and Hh signaling components and additionally inhibited expression of α-SMA and type I collagen, thereby preventing transformation to MFBs. UA inhibited TGF-β1-induced activation of q-HSCs and their transformation by inhibiting expression of NOX subunits and the downstream Hh pathway.
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Affiliation(s)
- Shan-Shan Yu
- Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Biao Chen
- Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Chen-Kai Huang
- Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Juan-Juan Zhou
- Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xin Huang
- Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - An-Jiang Wang
- Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Bi-Min Li
- Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Wen-Hua He
- Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xuan Zhu
- Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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18
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Hybrid Nitric Oxide Donor and its Carrier for the Treatment of Peripheral Arterial Diseases. Sci Rep 2017; 7:8692. [PMID: 28821752 PMCID: PMC5562917 DOI: 10.1038/s41598-017-08441-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 07/12/2017] [Indexed: 01/20/2023] Open
Abstract
Nitric oxide (NO) has been known to promote physiological angiogenesis to treat peripheral arterial diseases (PAD) by increasing the vascular endothelial growth factor (VEGF) level in endothelial cells (ECs) and preventing platelet adherence and leukocyte chemotaxis. However, the ongoing ischemic event during peripheral ischemia produces superoxide and diminishes the NO bioavailability by forming toxic peroxynitrite anion. Here we disclose an efficacious hybrid molecule 4-(5-Amino-1,2,3-oxadiazol-3-yl)-2,2,6,6-tetramethyl-1-piperidinol (SA-2) containing both antioxidant and NO donor functionalities that provide a therapeutic level of NO necessary to promote angiogenesis and to protect ECs against hydrogen peroxide-induced oxidative stress. Compound SA-2 scavenged reactive oxygen species, inhibited proliferation and migration of smooth muscle cells (SMCs) and promoted the tube formation from ECs. Copolymer poly(lactic-co-glycolic acid) (PLGA) nanoparticles loaded with SA-2 provided a sustained release of NO over days, improved aqueous stability in serum, protected ECs against oxidative stress, and enhanced angiogenesis under stress conditions as compared to that of the control in the in vitro matrigel tube formation assay. These results indicated the potential use of SA-2 nanoparticles as an alternative therapy to treat PAD.
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19
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Luo X, Dan Wang, Luo X, Zhu X, Wang G, Ning Z, Li Y, Ma X, Yang R, Jin S, Huang Y, Meng Y, Li X. Caveolin 1-related autophagy initiated by aldosterone-induced oxidation promotes liver sinusoidal endothelial cells defenestration. Redox Biol 2017; 13:508-521. [PMID: 28734243 PMCID: PMC5521033 DOI: 10.1016/j.redox.2017.07.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 06/12/2017] [Accepted: 07/12/2017] [Indexed: 12/21/2022] Open
Abstract
Aldosterone, with pro-oxidation and pro-autophagy capabilities, plays a key role in liver fibrosis. However, the mechanisms underlying aldosterone-promoted liver sinusoidal endothelial cells (LSECs) defenestration remain unknown. Caveolin 1 (Cav1) displays close links with autophagy and fenestration. Hence, we aim to investigate the role of Cav1-related autophagy in LSECs defenestration. We found the increase of aldosterone/MR (mineralocorticoid receptor) level, oxidation, autophagy, and defenestration in LSECs in the human fibrotic liver, BDL or hyperaldosteronism models; while antagonizing aldosterone or inhibiting autophagy relieved LSECs defenestration in BDL-induced fibrosis or hyperaldosteronism models. In vitro, fenestrae of primary LSECs gradually shrank, along with the down-regulation of the NO-dependent pathway and the augment of the AMPK-dependent autophagy; these effects were aggravated by rapamycin (an autophagy activator) or aldosterone treatment. Additionally, aldosterone increased oxidation mediated by Cav1, reduced ATP generation, and subsequently induced the AMPK-dependent autophagy, leading to the down-regulation of the NO-dependent pathway and LSECs defenestration. These effects were reversed by MR antagonist spironolactone, antioxidants or autophagy inhibitors. Besides, aldosterone enhanced the co-immunoprecipitation of Cav1 with p62 and ubiquitin, and induced Cav1 co-immunofluorescence staining with LC3, ubiquitin, and F-actin in the perinuclear area of LSECs. Furthermore, aldosterone treatment increased the membrane protein level of Cav1, whereas decrease the cytoplasmic protein level of Cav1, indicating that aldosterone induced Cav1-related selective autophagy and F-actin remodeling to promote defenestration. Consequently, Cav1-related selective autophagy initiated by aldosterone-induced oxidation promotes LSECs defenestration via activating the AMPK-ULK1 pathway and inhibiting the NO-dependent pathway.
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Affiliation(s)
- Xiaoying Luo
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China; State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Dan Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xuan Luo
- Department of Hepatobiliary Surgery, Guizhou Provincial People's Hospital, No. 52 Zhongshan East Road Nanming District, Guiyang, Guizhou Province, China
| | - Xintao Zhu
- Southern Medical University, Guangzhou, China
| | - Guozhen Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zuowei Ning
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yang Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoxin Ma
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Renqiang Yang
- Department of Emergency and Critical Care Medicine, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Siyi Jin
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yun Huang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ying Meng
- Department of Respiratory Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Xu Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China; State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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20
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Yoshida T, Akiba J, Matsui T, Nakamura K, Hisamoto T, Abe M, Ikezono Y, Wada F, Iwamoto H, Nakamura T, Koga H, Yamagishi SI, Torimura T. Pigment Epithelium-Derived Factor (PEDF) Prevents Hepatic Fat Storage, Inflammation, and Fibrosis in Dietary Steatohepatitis of Mice. Dig Dis Sci 2017; 62:1527-1536. [PMID: 28365916 DOI: 10.1007/s10620-017-4550-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 03/15/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND AIMS Pigment epithelium-derived factor (PEDF) has been shown to be a potent inhibitor of inflammation through its anti-oxidative property. Since oxidative response is considered to play the pivotal role of the development and progression of nonalcoholic steatohepatitis (NASH), it is conceivable that PEDF may play a protective role against NASH. In this study, we examined whether administration of PEDF slowed the progression of NASH in mice models. METHODS Mice were fed methionine- and choline-deficient (MCD) diet with or without intramuscular administration of adenovirus-expressing PEDF (Ad-PEDF). Effects of PEDF administration on NASH were histologically and biochemically evaluated. RESULTS Administration of Ad-PEDF significantly decreased hepatic fat storage as well as serum levels of ALT in MCD diet-fed mice. Dihydroethidium staining showed that MCD diet-triggered oxidative stress was reduced in the liver of Ad-PEDF-administered mice compared to that of PBS- or Ad-LacZ-administered mice. Activation of Kupffer cells and hepatic fibrosis was also inhibited by Ad-PEDF administration. Quantitative real-time RT-PCR revealed that MCD diet up-regulated expressions of TNF-α, IL-1β, IL-6, TGF-β, collagen-1, and collagen-3 mRNA, which were also attenuated with Ad-PEDF administration, whereas MCD diet-induced down-regulation of expressions of PPAR-γ mRNA was restored with Ad-PEDF administration. Furthermore, immunoblotting analysis showed that MCD diet-induced up-regulation of NADPH oxidase components was significantly decreased in Ad-PEDF-administered mice. CONCLUSIONS The present results demonstrated for the first time that PEDF could slow the development and progression of steatohepatitis through the suppression of steatosis and inflammatory response in MCD diet-fed mice. Our study suggests that PEDF supplementation may be a novel therapeutic strategy for the treatment of NASH.
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Affiliation(s)
- Takafumi Yoshida
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan. .,Liver Cancer Research Division, Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume Clinical Pharmacology Clinic, 67 Asahi-Machi, Kurume, 830-0011, Japan.
| | - Jun Akiba
- Department of Diagnostic Pathology, Kurume University School of Medicine, Kurume, Japan
| | - Takanori Matsui
- Department of Pathophysiology and Therapeutics of Diabetic Vascular Complications, Kurume University School of Medicine, Kurume, Japan
| | | | - Takao Hisamoto
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.,Liver Cancer Research Division, Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume Clinical Pharmacology Clinic, 67 Asahi-Machi, Kurume, 830-0011, Japan
| | - Mitsuhiko Abe
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.,Liver Cancer Research Division, Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume Clinical Pharmacology Clinic, 67 Asahi-Machi, Kurume, 830-0011, Japan
| | - Yu Ikezono
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.,Liver Cancer Research Division, Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume Clinical Pharmacology Clinic, 67 Asahi-Machi, Kurume, 830-0011, Japan
| | - Fumitaka Wada
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.,Liver Cancer Research Division, Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume Clinical Pharmacology Clinic, 67 Asahi-Machi, Kurume, 830-0011, Japan
| | - Hideki Iwamoto
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.,Liver Cancer Research Division, Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume Clinical Pharmacology Clinic, 67 Asahi-Machi, Kurume, 830-0011, Japan
| | - Toru Nakamura
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.,Liver Cancer Research Division, Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume Clinical Pharmacology Clinic, 67 Asahi-Machi, Kurume, 830-0011, Japan
| | - Hironori Koga
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.,Liver Cancer Research Division, Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume Clinical Pharmacology Clinic, 67 Asahi-Machi, Kurume, 830-0011, Japan
| | - Sho-Ichi Yamagishi
- Department of Pathophysiology and Therapeutics of Diabetic Vascular Complications, Kurume University School of Medicine, Kurume, Japan
| | - Takuji Torimura
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.,Liver Cancer Research Division, Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume Clinical Pharmacology Clinic, 67 Asahi-Machi, Kurume, 830-0011, Japan
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21
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Hepatoprotective effects of curcumin in rats after bile duct ligation via downregulation of Rac1 and NOX1. Nutrition 2017; 36:72-78. [DOI: 10.1016/j.nut.2016.06.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/24/2016] [Accepted: 06/05/2016] [Indexed: 02/08/2023]
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22
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Li YY, Shi ZM, Yu XT, Feng P, Wang XJ. The effects of urotensin II on migration and invasion are mediated by NADPH oxidase-derived reactive oxygen species through the c-Jun N-terminal kinase pathway in human hepatoma cells. Peptides 2017; 88:106-114. [PMID: 27988353 DOI: 10.1016/j.peptides.2016.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 11/20/2016] [Accepted: 12/13/2016] [Indexed: 12/20/2022]
Abstract
AIMS Urotensin II (UII) is a vasoactive neuropeptide involved in migration and invasion in various cell types. However, the effects of UII on human hepatoma cells still remain unclear. The aim of this study was to investigate the role and mechanism of UII on migration and invasion in human hepatoma cells. METHODS Migration was measured by wound healing assays and a Transwell® methodology, and invasion was analyzed using Matrigel® invasion chambers. Reactive oxygen species (ROS) levels were detected using a 2', 7'-dichlorofluorescein diacetate probe, and flow cytometry, and protein expression levels were evaluated by western blotting. Cell proliferation and actin polymerization were examined using cell proliferation reagent WST-1 and F-actin immunohistochemistry staining. RESULTS Exposure to UII promoted migration and invasion in hepatoma cells compared with that in cells without UII. UII also increased matrix metalloproteinase-2 (MMP2) expression in a time-independent manner. Furthermore, UII markedly enhanced ROS generation and NADPH oxidase subunit expression, and consequently facilitated the phosphorylation of c-Jun N-terminal kinase (JNK). The UT antagonist urantide or the antioxidant/NADPH oxidase inhibitor apocynin decreased UII-induced ROS production. JNK phosphorylation, migration, invasion, and MMP9/2 expression were also reversed by pretreatment with apocynin. Urantide and JNK inhibitor SP600125 abrogated migration, invasion, or MMP9/2 expression in response to UII. UII induced actin polymerization and fascin protein expression, and could be reversed by apocynin and SP600125. CONCLUSIONS Exogenous UII induced migration and invasion in hepatoma cells that mainly involved NADPH oxidase-derived ROS through JNK activation. UT played an additional role in regulating hepatoma cells migration and invasion. Thus, our data suggested an important effect of UII in hepatocellular carcinoma metastasis.
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Affiliation(s)
- Ying-Ying Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory for Cancer Invasion and Metastasis Research, Capital Medical University, Beijing, 100069, China
| | - Zheng-Ming Shi
- Department of General Surgery, Beijing Jishuitan Hospital, Beijing, 100035, China
| | - Xiao-Tong Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory for Cancer Invasion and Metastasis Research, Capital Medical University, Beijing, 100069, China
| | - Ping Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Xue-Jiang Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory for Cancer Invasion and Metastasis Research, Capital Medical University, Beijing, 100069, China.
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23
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Kabirifar R, Ghoreshi ZAS, Safari F, Karimollah A, Moradi A, Eskandari-Nasab E. Quercetin protects liver injury induced by bile duct ligation via attenuation of Rac1 and NADPH oxidase1 expression in rats. Hepatobiliary Pancreat Dis Int 2017; 16:88-95. [PMID: 28119263 DOI: 10.1016/s1499-3872(16)60164-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Bile duct ligation (BDL) and subsequent cholestasis are correlated with oxidative stress, hepatocellular injury and fibrosis. Quercetin is a flavonoid with antifibrotic, and hepatoprotective properties. However, the molecular mechanism underlying quercetin-mediated hepatoprotection is not fully understood. The current study was to evaluate mechanisms of hepatoprotective effect of quercetin in BDL rat model. METHODS We divided male Wistar rats into 4 groups (n=8 for each): sham, sham+quercetin (30 mg/kg per day), BDL, and BDL+quercetin (30 mg/kg per day). Four weeks later, the rats were sacrificed, the blood was collected for liver enzyme measurements and liver for the measurement of Rac1, Rac1-GTP and NOX1 mRNA and protein levels by quantitative PCR and Western blotting, respectively. RESULTS Quercetin significantly alleviated liver injury in BDL rats as evidenced by histology and reduced liver enzymes. Furthermore, the mRNA and protein expression of Rac1, Rac1-GTP and NOX1 were significantly increased in BDL rats compared with those in the sham group (P<0.05); quercetin treatment reversed these variables back toward normal (P<0.05). Another interesting finding was that the antioxidant markers e.g. superoxide dismutase and catalase were elevated in quercetin-treated BDL rats compared to BDL rats (P<0.05). CONCLUSION Quercetin demonstrated hepatoprotective activity against BDL-induced liver injury through increasing antioxidant capacity of the liver tissue, while preventing the production of Rac1, Rac1-GTP and NOX1 proteins.
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Affiliation(s)
- Razieh Kabirifar
- Department of Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran.
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24
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Vidal S, Tapia-Paniagua ST, Moriñigo JM, Lobo C, García de la Banda I, Balebona MDC, Moriñigo MÁ. Effects on intestinal microbiota and immune genes of Solea senegalensis after suspension of the administration of Shewanella putrefaciens Pdp11. FISH & SHELLFISH IMMUNOLOGY 2016; 58:274-283. [PMID: 27623340 DOI: 10.1016/j.fsi.2016.09.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 09/04/2016] [Accepted: 09/10/2016] [Indexed: 06/06/2023]
Abstract
The interaction host-intestinal microbiota is essential for the immunological homeostasis of the host. Probiotics, prebiotics and synbiotics are promising tools for the manipulation of the intestinal microbiota towards beneficial effects to the host. The objective of this study was to evaluate the modulation effect on the intestinal microbiota and the transcription of genes involved in the immune response in head kidney of Solea senegalensis after administration of diet supplemented with the prebiotic alginate and the probiotic Shewanella putrefaciens Pdp11 CECT 7627 (SpPdp11). The results showed higher adaptability to dietary changes in the intestinal microbiota of fish fed diet with alginate and SpPdp11 together compared to those fish that received an alginate-supplemented diet. The alginate-supplemented diet produced up-regulation of genes encoding proteins involved in immunological responses, such as complement, lysozyme G and transferrin, and oxidative stress, such as NADPH oxidase and glutation peroxidase. On the other hand, the administration of alginate combined with SpPdp11 resulted in a significant increase of the transcription of genes encoding for glutation peroxidase and HSP70, indicating a potential protective effect of SpPdp11 against oxidative stress. In addition, these effects were maintained after the suspension of the probiotic treatment. The relationship between the modulation of the intestinal microbiota and the expression of genes with protective effect against the oxidative stress was demonstrated by the Principal Components Analysis.
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Affiliation(s)
- Sara Vidal
- Group of Prophylaxis and Biocontrol of Fish Diseases, Departament of Microbiology, Campus de Teatinos s/n, Universidad de Málaga, 29071-Málaga, Spain
| | - Silvana Teresa Tapia-Paniagua
- Group of Prophylaxis and Biocontrol of Fish Diseases, Departament of Microbiology, Campus de Teatinos s/n, Universidad de Málaga, 29071-Málaga, Spain
| | - Jesús Miguel Moriñigo
- Group of Prophylaxis and Biocontrol of Fish Diseases, Departament of Microbiology, Campus de Teatinos s/n, Universidad de Málaga, 29071-Málaga, Spain
| | - Carmen Lobo
- Instituto Español de Oceanografía, Centro Oceanográfico de Santander, 39080-Santander, Spain
| | - Inés García de la Banda
- Instituto Español de Oceanografía, Centro Oceanográfico de Santander, 39080-Santander, Spain
| | - María Del Carmen Balebona
- Group of Prophylaxis and Biocontrol of Fish Diseases, Departament of Microbiology, Campus de Teatinos s/n, Universidad de Málaga, 29071-Málaga, Spain
| | - Miguel Ángel Moriñigo
- Group of Prophylaxis and Biocontrol of Fish Diseases, Departament of Microbiology, Campus de Teatinos s/n, Universidad de Málaga, 29071-Málaga, Spain.
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25
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de Araújo GR, Rabelo ACS, Meira JS, Rossoni-Júnior JV, Castro-Borges WD, Guerra-Sá R, Batista MA, Silveira-Lemos DD, Souza GHBD, Brandão GC, Chaves MM, Costa DC. Baccharis trimera inhibits reactive oxygen species production through PKC and down-regulation p47 phox phosphorylation of NADPH oxidase in SK Hep-1 cells. Exp Biol Med (Maywood) 2016; 242:333-343. [PMID: 28103717 DOI: 10.1177/1535370216672749] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Baccharis trimera, popularly known as "carqueja", is a native South-American plant possessing a high concentration of polyphenolic compounds and therefore high antioxidant potential. Despite the antioxidant potential described for B. trimera, there are no reports concerning the signaling pathways involved in this process. So, the aim of the present study was to assess the influence of B. trimera on the modulation of PKC signaling pathway and to characterize the effect of the nicotinamide adenine dinucleotide phosphate oxidase enzyme (NOX) on the generation of reactive oxygen species in SK Hep-1 cells. SK-Hep 1 cells were treated with B. trimera, quercetin, or rutin and then stimulated or not with PMA/ionomycin and labeled with carboxy H2DCFDA for detection of reactive oxygen species by flow cytometer. The PKC expression by Western blot and enzyme activity was performed to evaluate the influence of B. trimera and quercetin on PKC signaling pathway. p47 phox and p47 phox phosphorylated expression was performed by Western blot to evaluate the influence of B. trimera on p47 phox phosphorylation. The results showed that cells stimulated with PMA/ionomycin (activators of PKC) showed significantly increased reactive oxygen species production, and this production returned to baseline levels after treatment with DPI (NOX inhibitor). Both B. trimera and quercetin modulated reactive oxygen species production through the inhibition of PKC protein expression and enzymatic activity, also with inhibition of p47 phox phosphorylation. Taken together, these results suggest that B. trimera has a potential mechanism for inhibiting reactive oxygen species production through the PKC signaling pathway and inhibition subunit p47 phox phosphorylation of nicotinamide adenine dinucleotide phosphate oxidase.
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Affiliation(s)
- Glaucy Rodrigues de Araújo
- 1 Center for Research in Biological Sciences - NUPEB, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil
| | | | - Janaína Serenato Meira
- 2 Department of Biological Sciences, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil
| | - Joamyr Victor Rossoni-Júnior
- 1 Center for Research in Biological Sciences - NUPEB, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil
| | - William de Castro-Borges
- 1 Center for Research in Biological Sciences - NUPEB, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil.,2 Department of Biological Sciences, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil
| | - Renata Guerra-Sá
- 1 Center for Research in Biological Sciences - NUPEB, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil.,2 Department of Biological Sciences, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil
| | - Maurício Azevedo Batista
- 3 Postgraduate Program in Parasitology, Immunology Laboratory and Genomic Parasites, Federal University of Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - Denise da Silveira-Lemos
- 3 Postgraduate Program in Parasitology, Immunology Laboratory and Genomic Parasites, Federal University of Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - Gustavo Henrique Bianco de Souza
- 1 Center for Research in Biological Sciences - NUPEB, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil.,4 Department of Pharmaceutical Sciences - DEFAR, Program Postgraduate Pharmaceutical Sciences (CIPHARMA), School of Pharmacy, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil
| | - Geraldo Célio Brandão
- 4 Department of Pharmaceutical Sciences - DEFAR, Program Postgraduate Pharmaceutical Sciences (CIPHARMA), School of Pharmacy, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil
| | - Míriam Martins Chaves
- 5 Department of Biochemistry and Immunology, Federal University of Minas Gerais, 31270-901 Belo Horizonte, Brazil
| | - Daniela Caldeira Costa
- 1 Center for Research in Biological Sciences - NUPEB, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil.,2 Department of Biological Sciences, Federal University of Ouro Preto, 35400-000 Ouro Preto, Brazil
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26
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Kim IH, Xu J, Liu X, Koyama Y, Ma HY, Diggle K, You YH, Schilling JM, Jeste D, Sharma K, Brenner DA, Kisseleva T. Aging increases the susceptibility of hepatic inflammation, liver fibrosis and aging in response to high-fat diet in mice. AGE (DORDRECHT, NETHERLANDS) 2016; 38:291-302. [PMID: 27578257 PMCID: PMC5061686 DOI: 10.1007/s11357-016-9938-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 07/14/2016] [Indexed: 04/17/2023]
Abstract
We aimed to investigate whether aging increases the susceptibility of hepatic and renal inflammation or fibrosis in response to high-fat diet (HFD) and explore the underlying genetic alterations. Middle (10 months old) and old (20 months old) aged, male C57BL/6N mice were fed either a low-fat diet (4 % fat) or HFD (60 % fat) for 4 months. Young (3 months old) aged mice were included as control group. HFD-induced liver and kidney injuries were analyzed by serum and urine assay, histologic staining, immunohistochemistry, and reverse-transcription real-time quantitative polymerase chain reaction. Total RNA sequencing with next-generation technology was done with RNA extracted from liver tissues. With HFD feeding, aged was associated with higher serum alanine aminotransferase levels, marked infiltration of hepatic macrophages, and increased expression of inflammatory cytokines (MCP1, TNF-α, IL-1β, IL-6, IL-12, IL-17A). Importantly, aged mice showed more advanced hepatic fibrosis and increased expression of fibrogenic markers (Col-I-α1, αSMA, TGF-β1, TGF-β2, TGFβRII, PDGF, PDGFRβII, TIMP1) in response to HFD. Aged mice fed on HFD also showed increased oxidative stress and TLR4 expression. In the total RNA seq and gene ontology analysis of liver, old-aged HFD group showed significant up-regulation of genes linked to innate immune response, immune response, defense response, inflammatory response compared to middle-aged HFD group. Meanwhile, aging and HFD feeding showed significant increase in glomerular size and mesangial area, higher urine albumin/creatinine ratio, and advanced renal inflammation or fibrosis. However, the difference of HFD-induced renal injury between old-aged group and middle-aged group was not significant. The susceptibility of hepatic fibrosis as well as hepatic inflammation in response to HFD was significantly increased with aging. In addition, aging was associated with glomerular alterations and increased renal inflammation or fibrosis, while the differential effect of aging on HFD-induced renal injury was not remarkable as shown in the liver.
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Affiliation(s)
- In Hee Kim
- Department of Medicine, School of Medicine, University of California, 9500 Gilman Drive # 0702, La Jolla, San Diego, CA, 92093, USA
- Department of Internal Medicine, Chonbuk National University Medical School and Hospital, Jeonju, South Korea
| | - Jun Xu
- Department of Medicine, School of Medicine, University of California, 9500 Gilman Drive # 0702, La Jolla, San Diego, CA, 92093, USA
| | - Xiao Liu
- Department of Medicine, School of Medicine, University of California, 9500 Gilman Drive # 0702, La Jolla, San Diego, CA, 92093, USA
| | - Yukinori Koyama
- Department of Medicine, School of Medicine, University of California, 9500 Gilman Drive # 0702, La Jolla, San Diego, CA, 92093, USA
| | - Hsiao-Yen Ma
- Department of Medicine, School of Medicine, University of California, 9500 Gilman Drive # 0702, La Jolla, San Diego, CA, 92093, USA
| | - Karin Diggle
- Department of Medicine, School of Medicine, University of California, 9500 Gilman Drive # 0702, La Jolla, San Diego, CA, 92093, USA
| | - Young-Hyun You
- Center for Renal Translational Medicine, Division of Nephrology-Hypertension, University of California, La Jolla, San Diego, CA, USA
| | - Jan M Schilling
- Department of Anesthesiology, University of California, La Jolla, San Diego, CA, USA
| | - Dilip Jeste
- Departments of Psychiatry and Neurosciences, and the Sam and Rose Stein Institute for Research on Aging, University of California, La Jolla, San Diego, CA, USA
| | - Kumar Sharma
- Department of Medicine, School of Medicine, University of California, 9500 Gilman Drive # 0702, La Jolla, San Diego, CA, 92093, USA
| | - David A Brenner
- Department of Medicine, School of Medicine, University of California, 9500 Gilman Drive # 0702, La Jolla, San Diego, CA, 92093, USA
| | - Tatiana Kisseleva
- Department of Medicine, School of Medicine, University of California, 9500 Gilman Drive # 0702, La Jolla, San Diego, CA, 92093, USA.
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27
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Dattaroy D, Seth RK, Das S, Alhasson F, Chandrashekaran V, Michelotti G, Fan D, Nagarkatti M, Nagarkatti P, Diehl AM, Chatterjee S. Sparstolonin B attenuates early liver inflammation in experimental NASH by modulating TLR4 trafficking in lipid rafts via NADPH oxidase activation. Am J Physiol Gastrointest Liver Physiol 2016; 310:G510-25. [PMID: 26718771 PMCID: PMC4824178 DOI: 10.1152/ajpgi.00259.2015] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 12/28/2015] [Indexed: 01/31/2023]
Abstract
Although significant research data exist on the pathophysiology of nonalcoholic steatohepatitis (NASH), finding an efficient treatment regimen for it remains elusive. The present study used sparstolonin B (SsnB), a novel TLR4 antagonist derived from the Chinese herb Sparganium stoloniferum, as a possible drug to mitigate early inflammation in NASH. This study used an early steatohepatitic injury model in high-fat-fed mice with CYP2E1-mediated oxidative stress as a second hit. SsnB was administered for 1 wk along with bromodichloromethane (BDCM), an inducer of CYP2E1-mediated oxidative stress. Results showed that SsnB administration attenuated inflammatory morphology and decreased elevation of the liver enzyme alanine aminotransferase (ALT). Mice administered SsnB also showed decreased mRNA expression of proinflammatory cytokines TNF-α, IFN-γ, IL-1β, and IL-23, while protein levels of both TNF-α and IL-1β were significantly decreased. SsnB significantly decreased Kupffer cell activation as evidenced by reduction in CD68 and monocyte chemoattractant protein-1 (MCP1) mRNA and protein levels with concomitant inhibition of macrophage infiltration in the injured liver. Mechanistically, SsnB decreased TLR4 trafficking to the lipid rafts, a phenomenon described by the colocalization of TLR4 and lipid raft marker flotillin in tissues and immortalized Kupffer cells. Since we have shown previously that NADPH oxidase drives TLR4 trafficking in NASH, we studied the role of SsnB in modulating this pathway. SsnB prevented NADPH oxidase activation in vivo and in vitro as indicated by decreased peroxynitrite formation. In summary, the present study reports a novel use of the TLR4 antagonist SsnB in mitigating inflammation in NASH and in parallel shows a unique molecular mechanism of decreasing nitrative stress.
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Affiliation(s)
- Diptadip Dattaroy
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina;
| | - Ratanesh Kumar Seth
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina;
| | - Suvarthi Das
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina;
| | - Firas Alhasson
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina;
| | - Varun Chandrashekaran
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina;
| | | | - Daping Fan
- 3Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina; and
| | - Mitzi Nagarkatti
- 4Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Prakash Nagarkatti
- 4Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Anna Mae Diehl
- 2Division of Gastroenterology, Duke University, Durham, North Carolina;
| | - Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina;
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28
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Is Liver Enzyme Release Really Associated with Cell Necrosis Induced by Oxidant Stress? OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:3529149. [PMID: 26798419 PMCID: PMC4699024 DOI: 10.1155/2016/3529149] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Accepted: 10/11/2015] [Indexed: 12/16/2022]
Abstract
Hepatic diseases are a major concern worldwide. Increased specific plasma enzyme activities are considered diagnostic features for liver diseases, since enzymes are released into the blood compartment following the deterioration of the organ. Release of liver mitochondrial enzymes is considered strong evidence for hepatic necrosis, which is associated with an increased production of ROS, often leading to greater hepatic lipid peroxidation. Lipotoxic mediators and intracellular signals activated Kupffer cells, which provides evidence strongly suggesting the participation of oxidant stress in acute liver damage, inducing the progression of liver injury to chronic liver damage. Elevated transaminase activities are considered as an index marker of hepatotoxicity, linked to oxidant stress. However, a drastic increase of serum activities of liver enzyme markers ought not necessarily to reflect liver cell death. In fact, increased serum levels of cytoplasmic enzymes have readily been observed after partial hepatectomy (PH) in the regenerating liver of rats. In this regard, we are now showing that in vitro modifications of the oxidant status affect differentially the release of liver enzymes, indicating that this release is a strictly controlled event and not directly related to the onset of oxidant stress of the liver.
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29
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Fierro-Fernández M, Miguel V, Lamas S. Role of redoximiRs in fibrogenesis. Redox Biol 2015; 7:58-67. [PMID: 26654978 PMCID: PMC4683389 DOI: 10.1016/j.redox.2015.11.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 11/18/2015] [Indexed: 02/06/2023] Open
Abstract
Fibrosis can be defined as an excessive accumulation of extracellular matrix (ECM) components, ultimately leading to stiffness, scarring and devitalized tissue. MicroRNAs (miRNAs) are short, 19-25 nucleotides (nt), non-coding RNAs involved in the post-transcriptional regulation of gene expression. Recently, miRNAs have also emerged as powerful regulators of fibrotic processes and have been termed "fibromiRs". Oxidative stress represents a self-perpetuating mechanism in fibrogenesis. MiRNAs can also influence the expression of genes responsible for the generation of reactive oxygen species (ROS) and antioxidant defence and are termed "redoximiRs". Here, we review the current knowledge of mechanisms by which "redoximiRs" regulate fibrogenesis. This new set of miRNAs may be called "redoxifibromiRs".
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Affiliation(s)
- Marta Fierro-Fernández
- Department of Cell Biology and Immunology, Centro de Biología Molecular "Severo Ochoa" (CBMSO), Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain.
| | - Verónica Miguel
- Department of Cell Biology and Immunology, Centro de Biología Molecular "Severo Ochoa" (CBMSO), Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Santiago Lamas
- Department of Cell Biology and Immunology, Centro de Biología Molecular "Severo Ochoa" (CBMSO), Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain.
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30
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Tapia-Paniagua ST, Vidal S, Lobo C, García de la Banda I, Esteban MA, Balebona MC, Moriñigo MA. Dietary administration of the probiotic SpPdp11: Effects on the intestinal microbiota and immune-related gene expression of farmed Solea senegalensis treated with oxytetracycline. FISH & SHELLFISH IMMUNOLOGY 2015; 46:449-458. [PMID: 26190256 DOI: 10.1016/j.fsi.2015.07.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 07/08/2015] [Accepted: 07/14/2015] [Indexed: 06/04/2023]
Abstract
Few antimicrobials are currently authorised in the aquaculture industry to treat infectious diseases. Among them, oxytetracycline (OTC) is one of the first-choice drugs for nearly all bacterial diseases. The objective of this study was to evaluate the effect of the dietary administration of OTC both alone and jointly with the probiotic Shewanella putrefaciens Pdp11 (SpPdp11) on the intestinal microbiota and hepatic expression of genes related to immunity in Senegalese sole (Solea senegalensis) juveniles. The results demonstrated that the richness and diversity of the intestinal microbiota of fish treated with OTC decreased compared with those of the control group but that these effects were lessened by the simultaneous administration of SpPdp11. In addition, specimens that received OTC and SpPdp11 jointly showed a decreased intensity of the Denaturing Gradient Gel Electrophoresis (DGGE) bands related to Vibrio genus and the presence of DGGE bands related to Lactobacillus and Shewanella genera. The relationship among the intestinal microbiota of fish fed with control and OTC diets and the expression of the NADPH oxidase and CASPASE-6 genes was demonstrated by a Principal Components Analysis (PCA) carried out in this study. In contrast, a close relationship between the transcription of genes, such as NKEF, IGF-β, HSP70 and GP96, and the DGGE bands of fish treated jointly with OTC and SpPdp11 was observed in the PCA study. In summary, the results obtained in this study demonstrate that the administration of OTC results in the up-regulation of genes related to apoptosis but that the joint administration of OTC and S. putrefaciens Pdp11 increases the transcription of genes related to antiapoptotic effects and oxidative stress regulation. Further, a clear relationship between these changes and those detected in the intestinal microbiota is established.
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Affiliation(s)
- S T Tapia-Paniagua
- Universidad de Málaga, Departamento de Microbiología, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - S Vidal
- Universidad de Málaga, Departamento de Microbiología, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - C Lobo
- Spanish Institute of Oceanography, Oceanographic Center of Santander, 39080 Santander, Spain
| | - I García de la Banda
- Spanish Institute of Oceanography, Oceanographic Center of Santander, 39080 Santander, Spain
| | - M A Esteban
- Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain
| | - M C Balebona
- Universidad de Málaga, Departamento de Microbiología, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - M A Moriñigo
- Universidad de Málaga, Departamento de Microbiología, Campus de Teatinos s/n, 29071 Málaga, Spain.
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Abreu ICMED, Guerra JFDC, Pereira RR, Silva M, Lima WGD, Silva ME, Pedrosa ML. Hypercholesterolemic diet induces hepatic steatosis and alterations in mRNA expression of NADPH oxidase in rat livers. ACTA ACUST UNITED AC 2015; 58:251-9. [PMID: 24863087 DOI: 10.1590/0004-2730000002831] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 01/24/2014] [Indexed: 12/18/2022]
Abstract
OBJECTIVE This study aimed to determine whether a hypercholesterolemic diet induces hepatic steatosis, alterations in mRNA expression of NADPH oxidase subunits, and antioxidant defenses. MATERIALS AND METHODS Fischer rats were divided into two groups of eight animals according to the treatment, control (C) and hypercholesterolemic diet (H). Those in group C were fed a standard diet (AIN-93M), and those of the group H were fed a hypercholesterolemic diet (25% soybean oil and 1% cholesterol). RESULTS The hypercholesterolemic diet did not affect body weight, but resulted in the accumulation of lipids in the liver, increased serum activities of aminotransferases and cholesterol levels. Biomarker of lipid peroxidation (TBARS) and mRNA expression of NADPH oxidase subunits p22(phox) and p47(phox) were increased in the liver of animals in group H. Besides, the activity and expression of antioxidant enzymes were altered. CONCLUSION The results show increased mRNA expression of NADPH oxidase subunits and changes in antioxidant enzyme activities in diet-induced hepatic steatosis.
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Affiliation(s)
| | | | | | - Maísa Silva
- Research Center in Biological Sciences, UFOP, Ouro Preto, MG, Brazil
| | | | | | - Maria Lúcia Pedrosa
- School of Nutrition, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
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Dattaroy D, Pourhoseini S, Das S, Alhasson F, Seth RK, Nagarkatti M, Michelotti GA, Diehl AM, Chatterjee S. Micro-RNA 21 inhibition of SMAD7 enhances fibrogenesis via leptin-mediated NADPH oxidase in experimental and human nonalcoholic steatohepatitis. Am J Physiol Gastrointest Liver Physiol 2015; 308:G298-312. [PMID: 25501551 PMCID: PMC4329476 DOI: 10.1152/ajpgi.00346.2014] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Hepatic fibrosis in nonalcoholic steatohepatitis (NASH) is the common pathophysiological process resulting from chronic liver inflammation and oxidative stress. Although significant research has been carried out on the role of leptin-induced NADPH oxidase in fibrogenesis, the molecular mechanisms that connect the leptin-NADPH oxidase axis in upregulation of transforming growth factor (TGF)-β signaling have been unclear. We aimed to investigate the role of leptin-mediated upregulation of NADPH oxidase and its subsequent induction of micro-RNA 21 (miR21) in fibrogenesis. Human NASH livers and a high-fat (60% kcal) diet-fed chronic mouse model, where hepatotoxin bromodichloromethane was used to induce NASH, were used for this study. To prove the role of the leptin-NADPH oxidase-miR21 axis, mice deficient in genes for leptin, p47phox, and miR21 were used. Results showed that wild-type mice and human livers with NASH had increased oxidative stress, increased p47phox expression, augmented NF-κB activation, and increased miR21 levels. These mice and human livers showed increased TGF-β, SMAD2/3-SMAD4 colocalizations in the nucleus, increased immunoreactivity against Col1α, and α-SMA with a concomitant decrease in protein levels of SMAD7. Mice that were deficient in leptin or p47phox had decreased activated NF-κB and miR21 levels, suggesting the role of leptin and NADPH oxidase in inducing NF-κB-mediated miR21 expression. Further miR21 knockout mice had decreased colocalization events of SMAD2/3-SMAD4 in the nucleus, increased SMAD7 levels, and decreased fibrogenesis. Taken together, the studies show the novel role of leptin-NADPH oxidase induction of miR21 as a key regulator of TGF-β signaling and fibrogenesis in experimental and human NASH.
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Affiliation(s)
- Diptadip Dattaroy
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina;
| | - Sahar Pourhoseini
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina;
| | - Suvarthi Das
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina;
| | - Firas Alhasson
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina;
| | - Ratanesh Kumar Seth
- 1Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina;
| | - Mitzi Nagarkatti
- 2Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina;
| | | | - Anna Mae Diehl
- 3Division of Gastroenterology, Duke University, Durham, North Carolina
| | - Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina;
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Bardi DA, Halabi MF, Hassandarvish P, Rouhollahi E, Paydar M, Moghadamtousi SZ, Al-Wajeeh NS, Ablat A, Abdullah NA, Abdulla MA. Andrographis paniculata leaf extract prevents thioacetamide-induced liver cirrhosis in rats. PLoS One 2014; 9:e109424. [PMID: 25280007 PMCID: PMC4184875 DOI: 10.1371/journal.pone.0109424] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 09/01/2014] [Indexed: 11/18/2022] Open
Abstract
This study investigated the hepatoprotective effects of ethanolic Andrographis paniculata leaf extract (ELAP) on thioacetamide-induced hepatotoxicity in rats. An acute toxicity study proved that ELAP is not toxic in rats. To examine the effects of ELAP invivo, male Sprague Dawley rats were given intraperitoneal injections of vehicle 10% Tween-20, 5 mL/kg (normal control) or 200 mg/kg TAA thioacetamide (to induce liver cirrhosis) three times per week. Three additional groups were treated with thioacetamide plus daily oral silymarin (50 mg/kg) or ELAP (250 or 500 mg/kg). Liver injury was assessed using biochemical tests, macroscopic and microscopic tissue analysis, histopathology, and immunohistochemistry. In addition, HepG2 and WRL-68 cells were treated invitro with ELAP fractions to test cytotoxicity. Rats treated with ELAP exhibited significantly lower liver/body weight ratios and smoother, more normal liver surfaces compared with the cirrhosis group. Histopathology using Hematoxylin and Eosin along with Masson’s Trichrome stain showed minimal disruption of hepatic cellular structure, minor fibrotic septa, a low degree of lymphocyte infiltration, and minimal collagen deposition after ELAP treatment. Immunohistochemistry indicated that ELAP induced down regulation of proliferating cell nuclear antigen. Also, hepatic antioxidant enzymes and oxidative stress parameters in ELAP-treated rats were comparable to silymarin-treated rats. ELAP administration reduced levels of altered serum liver biomarkers. ELAP fractions were non-cytotoxic to WRL-68 cells, but possessed anti-proliferative activity on HepG2 cells, which was confirmed by a significant elevation of lactate dehydrogenase, reactive oxygen species, cell membrane permeability, cytochrome c, and caspase-8,-9, and, -3/7 activity in HepG2 cells. A reduction of mitochondrial membrane potential was also detected in ELAP-treated HepG2 cells. The hepatoprotective effect of 500 mg/kg of ELAP is proposed to result from the reduction of thioacetamide-induced toxicity, normalizing reactive oxygen species levels, inhibiting cellular proliferation, and inducing apoptosis in HepG2 cells.
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Affiliation(s)
- Daleya Abdulaziz Bardi
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohammed Farouq Halabi
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Pouya Hassandarvish
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Elham Rouhollahi
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohammadjavad Paydar
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Soheil Zorofchian Moghadamtousi
- Biomolecular Research Group, Biochemistry Program, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Nahla Saeed Al-Wajeeh
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Abdulwali Ablat
- Institute of Biological Science, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Nor Azizan Abdullah
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Mahmood Ameen Abdulla
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- * E-mail:
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Cichoż-Lach H, Michalak A. Oxidative stress as a crucial factor in liver diseases. World J Gastroenterol 2014; 20:8082-8091. [PMID: 25009380 PMCID: PMC4081679 DOI: 10.3748/wjg.v20.i25.8082] [Citation(s) in RCA: 690] [Impact Index Per Article: 69.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 04/23/2014] [Indexed: 02/06/2023] Open
Abstract
Redox state constitutes an important background of numerous liver disorders. The redox state participates in the course of inflammatory, metabolic and proliferative liver diseases. Reactive oxygen species (ROS) are primarily produced in the mitochondria and in the endoplasmic reticulum of hepatocytes via the cytochrome P450 enzymes. Under the proper conditions, cells are equipped with special molecular strategies that control the level of oxidative stress and maintain a balance between oxidant and antioxidant particles. Oxidative stress represents an imbalance between oxidant and antioxidant agents. Hepatocytic proteins, lipids and DNA are among the cellular structures that are primarily affected by ROS and reactive nitrogen species. The process results in structural and functional abnormalities in the liver. Thus, the phenomenon of oxidative stress should be investigated for several reasons. First, it may explain the pathogenesis of various liver disorders. Moreover, monitoring oxidative markers among hepatocytes offers the potential to diagnose the degree of liver damage and ultimately to observe the response to pharmacological therapies. The present report focuses on the role of oxidative stress in selected liver diseases.
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Exploring the molecular basis for selective binding of homoserine dehydrogenase from Mycobacterium leprae TN toward inhibitors: a virtual screening study. Int J Mol Sci 2014; 15:1826-41. [PMID: 24469317 PMCID: PMC3958823 DOI: 10.3390/ijms15021826] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 01/14/2014] [Accepted: 01/15/2014] [Indexed: 12/12/2022] Open
Abstract
Homoserine dehydrogenase (HSD) from Mycobacterium leprae TN is an antifungal target for antifungal properties including efficacy against the human pathogen. The 3D structure of HSD has been firmly established by homology modeling methods. Using the template, homoserine dehydrogenase from Thiobacillus denitrificans (PDB Id 3MTJ), a sequence identity of 40% was found and molecular dynamics simulation was used to optimize a reliable structure. The substrate and co-factor-binding regions in HSD were identified. In order to determine the important residues of the substrate (l-aspartate semialdehyde (l-ASA)) binding, the ASA was docked to the protein; Thr163, Asp198, and Glu192 may be important because they form a hydrogen bond with HSD through AutoDock 4.2 software. After use of a virtual screening technique of HSD, the four top-scoring docking hits all seemed to cation–π ion pair with the key recognition residue Lys107, and Lys207. These ligands therefore seemed to be new chemotypes for HSD. Our results may be helpful for further experimental investigations.
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36
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Polettini J, Silva MG, Kacerovsky M, Syed TA, Saade G, Menon R. Expression profiles of fetal membrane nicotinamide adenine dinucleotide phosphate oxidases (NOX) 2 and 3 differentiates spontaneous preterm birth and pPROM pathophysiologies. Placenta 2014; 35:188-94. [PMID: 24439294 DOI: 10.1016/j.placenta.2013.12.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 11/27/2013] [Accepted: 12/23/2013] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Nicotinamide adenine dinucleotide phosphate oxidases (NOX 1-5) are enzymes that generate cellular reactive oxygen species (ROS) besides mitochondria and might be important ROS sources associated with pregnancy complications, particularly preterm premature rupture of membranes (pPROM), that has been related to ROS. OBJECTIVE To characterize NOX enzymes expression in human fetal membranes. METHODS Differential expression and localization of NOX isoforms in human fetal membranes collected from women with uncomplicated pregnancies at term, preterm birth (PTB) or pPROM and in vitro in normal term membranes maintained in an organ explant system stimulated with water-soluble cigarette smoke extract (wsCSE) were documented by real time PCR and immunohistochemistry. RESULTS Fetal membranes from term deliveries, PTB and pPROM expressed NOX 2, 3 and 4 mRNAs whereas NOX 1 and 5 were not detected. NOX 2 expression was 2.3-fold higher in PTB than pPROM (p = 0.005) whereas NOX 3 was 2.2-fold higher in pPROM compared to PTB (p = 0.04). NOX 2 and 3 expressions at term mimicked pPROM and PTB, respectively. No difference in NOX 4 expression was observed among the studied groups. NOX 2, 3 and 4 were localized to both amniotic and chorionic cells. Expression of NOX 2, 3 and 4 were not significant in wsCSE-stimulated membranes compared to untreated controls. DISCUSSION/CONCLUSIONS NOX enzymes are present in the fetal membranes and are differentially expressed in PTB and pPROM. Absence of any changes in NOXs expression after wsCSE stimulation suggests ROS generation in the membranes does not always correlate with NOX expression.
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Affiliation(s)
- J Polettini
- Division of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, USA; Department of Pathology, Botucatu Medical School, UNESP - Univ. Estadual Paulista, Botucatu, Sao Paulo, Brazil
| | - M G Silva
- Department of Pathology, Botucatu Medical School, UNESP - Univ. Estadual Paulista, Botucatu, Sao Paulo, Brazil
| | - M Kacerovsky
- Biomedical Research Center, University Hospital Hradec Kralove, Czech Republic; Department of Obstetrics and Gynecology, Charles University in Prague, Faculty of Medicine, Hradec Kralove, Czech Republic
| | - T A Syed
- Division of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - G Saade
- Division of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - R Menon
- Division of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, USA.
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Expression and function of methylthioadenosine phosphorylase in chronic liver disease. PLoS One 2013; 8:e80703. [PMID: 24324622 PMCID: PMC3855635 DOI: 10.1371/journal.pone.0080703] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Accepted: 10/07/2013] [Indexed: 12/21/2022] Open
Abstract
To study expression and function of methylthioadenosine phosphorylase (MTAP), the rate-limiting enzyme in the methionine and adenine salvage pathway, in chronic liver disease.
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38
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Brenner DA. Reversibility of liver fibrosis. Gastroenterol Hepatol (N Y) 2013; 9:737-739. [PMID: 24764791 PMCID: PMC3995196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- David A Brenner
- Vice Chancellor for Health Sciences Dean of the School of Medicine University of California, San Diego San Diego, California
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Enriquez-Cortina C, Almonte-Becerril M, Clavijo-Cornejo D, Palestino-Domínguez M, Bello-Monroy O, Nuño N, López A, Bucio L, Souza V, Hernández-Pando R, Muñoz L, Gutiérrez-Ruiz MC, Gómez-Quiroz LE. Hepatocyte growth factor protects against isoniazid/rifampicin-induced oxidative liver damage. Toxicol Sci 2013; 135:26-36. [PMID: 23764483 DOI: 10.1093/toxsci/kft134] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The worldwide increment of multidrug- and extensively drug-resistant tuberculosis has emphasized the importance of looking for new options in therapeutics. Long-time usage or higher doses of isoniazid and rifampicin have been considered for the treatment of multidrug-resistant tuberculosis; however, the risk of liver failure is proportionally increased. Hepatocyte growth factor (HGF) is a multitask growth factor that stimulates both antiapoptotic and antioxidant responses that counteract the toxic effects of drug metabolism in the liver. The present work was focused to address the antioxidant and antiapoptotic effects of HGF on isoniazid- and rifampicin-induced hepatotoxicity. BALB/c mice were subjected to rifampicin (150mg/kg, intragavage [ig]) plus isoniazid (75mg/kg, ig) for 7 days. Increments in alanine aminotransferase activity, steatosis, apoptosis, and oxidative stress markers were found in animals. Recombinant HGF (iv) prevented all the harmful effects by increasing the activation of Erk1/2 and PKCδ signaling pathways and glutathione (GSH) synthesis. Furthermore, inhibition of endogenous HGF with anti-HGF antibody (iv) enhanced the isoniazid- and rifampicin-induced oxidative stress damage and decreased the GSH content, aggravating liver damage. In conclusion, HGF demonstrated to be a good protective factor against antituberculosis drug-induced hepatotoxicity and could be considered a good adjuvant factor for the use of high doses of or the reintroduction of these antituberculosis drugs.
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Affiliation(s)
- Cristina Enriquez-Cortina
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, Mexico
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Mesenchymal stem cells restore CCl4-induced liver injury by an antioxidative process. Cell Biol Int 2013; 36:1267-74. [PMID: 23035905 DOI: 10.1042/cbi20110634] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We have investigated BM (bone marrow)-derived MSCs (mesenchymal stem cells) for the treatment of liver injury. It was hypothesized that MSC-mediated resolution of liver injury could occur through an antioxidative process. After being injected with CCl4 (carbon tetrachloride), mice were injected with syngenic BM-derived MSCs or normal saline. Oxidative stress activity of the MSCs was determined by the analysis of ROS (reactive oxygen species) and SOD (superoxide dismutase) activity. In addition, cytoprotective genes of the liver tissue were assessed by real-time PCR and ARE (antioxidant-response element) reporter assay. Up-regulated ROS of CCl4-treated liver cells was attenuated by co-culturing with MSCs. Suppression of SOD by adding an SOD inhibitor decreased the effect of MSCs on injured liver cells. MSCs significantly increased SOD activity and inhibited ROS production in the injured liver. The gene expression levels of Hmox-1 (haem oxygenase-1), BI-1 (Bax inhibitor-1), HGF (hepatocyte growth factor), GST (glutathione transferase) and Nrf2 (nuclear factor-erythoid 2 p45 subunit-related factor 20), attenuated by CCl4, were increased up to basal levels after MSC transplantation. In addition, MSCs induced an ARE, shown by luciferase activity, which represented a cytoprotective response in the injured liver. Evidence of a new cytoprotective effect is shown in which MSCs promote an antioxidant response and supports the potential of using MSC transplantation as an effective treatment modality for liver disease.
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Depner CM, Philbrick KA, Jump DB. Docosahexaenoic acid attenuates hepatic inflammation, oxidative stress, and fibrosis without decreasing hepatosteatosis in a Ldlr(-/-) mouse model of western diet-induced nonalcoholic steatohepatitis. J Nutr 2013; 143:315-23. [PMID: 23303872 PMCID: PMC3713021 DOI: 10.3945/jn.112.171322] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The incidence of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) has increased in parallel with the incidence of obesity. While both NAFLD and NASH are characterized by hepatosteatosis, NASH is characterized by hepatic damage, inflammation, oxidative stress, and fibrosis. We previously reported that feeding Ldlr(-/-) mice a high-fat, high-cholesterol diet containing menhaden oil attenuated several markers of NASH, including hepatosteatosis, inflammation, and fibrosis. Herein, we test the hypothesis that DHA [22:6 (n-3)] is more effective than EPA [20:5 (n-3)] at preventing Western diet (WD)-induced NASH in Ldlr(-/-) mice. Mice were fed the WD supplemented with either olive oil (OO), EPA, DHA, or EPA + DHA for 16 wk. WD + OO feeding induced a severe NASH phenotype, characterized by robust hepatosteatosis, inflammation, oxidative stress, and fibrosis. Whereas none of the C20-22 (n-3) fatty acid treatments prevented WD-induced hepatosteatosis, all 3 (n-3) PUFA-containing diets significantly attenuated WD-induced inflammation, fibrosis, and hepatic damage. The capacity of dietary DHA to suppress hepatic markers of inflammation (Clec4F, F4/80, Trl4, Trl9, CD14, Myd88), fibrosis (Procol1α1, Tgfβ1), and oxidative stress (NADPH oxidase subunits Nox2, p22phox, p40phox, p47phox, p67phox) was significantly greater than dietary EPA. The effects of DHA on these markers paralleled DHA-mediated suppression of hepatic Fads1 mRNA abundance and hepatic arachidonic acid content. Because DHA suppression of NASH markers does not require a reduction in hepatosteatosis, dietary DHA may be useful in combating NASH in obese humans.
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Affiliation(s)
- Christopher M. Depner
- The Nutrition Program, School of Biological and Population Health Sciences, and,The Linus Pauling Institute, Oregon State University, Corvallis, OR
| | | | - Donald B. Jump
- The Nutrition Program, School of Biological and Population Health Sciences, and,The Linus Pauling Institute, Oregon State University, Corvallis, OR,To whom correspondence should be addressed. E-mail:
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Suk KT, Kim DJ, Kim CH, Park SH, Cheong JY, Cho SW, Choi JY, Han KH, Sung HT, Hong SH, Kim DY, Yoon JH, Kim YS, Baik GH, Kim JB. Diagnostic accuracy of biomarkers measured in the hepatic vein and peripheral vein in the prediction of advanced fibrosis in patients with chronic viral hepatitis. Clin Biochem 2012; 45:1075-80. [PMID: 22579966 DOI: 10.1016/j.clinbiochem.2012.04.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 04/25/2012] [Accepted: 04/28/2012] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The accuracies of biomarkers checked in the hepatic vein (HV) and peripheral vein (PV) were compared in the prediction of advanced fibrosis (AF) of liver. METHODS Patients with chronic viral hepatitis (n=101) who underwent hepatic venous pressure gradient, liver biopsy, and paired HV-PV samples (6 biomarkers: hyaluronic acid [HA], haptoglobin, matrix metalloproteinase-2 [MMP2], tissue inhibitor of metalloproteinases-1 [TIMP1], procollagen III N-terminal peptide [PIIINP], and apolipoprotein-A1 [Apo-A1]) were enrolled. RESULTS Differences were displayed between the HV and PV in the predictive logit-models for predicting AF (-3.13+0.017×MMP2-0.019×haptoglobin and -0.270+0.007×HA-0.018×haptoglobin, respectively). In the area under the receiver operating characteristic curves, PIIINP (0.74/0.68, p=0.03), MMP2 (0.72/0.63, p=0.04), HA (0.79/0.76, p=0.94), Apo-A1 (0.56/0.48, p=0.73), and predictive logit-model (0.81/0.78, p=0.68) showed higher diagnostic value in the HV sample. CONCLUSIONS While most biomarkers were correlated better with hepatic fibrosis in HV than in PV, individually and in predictive logit-models, they were inadequate to determine the degree of advanced fibrosis.
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Affiliation(s)
- Ki Tae Suk
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, South Korea
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