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Mohammed MM, Okasha AMM, Naiem AHA, Mohamed RF, Abdelwahab SF, Mohamed HA. Cyclosporine Ameliorates Silica-Induced Autoimmune Hepatitis in Rat Model by Altering the Expression of Toll-Like Receptor-4, Interleukin-2, and Tumor Necrosis Factor-α. Curr Mol Med 2023; 23:87-95. [PMID: 34994326 DOI: 10.2174/1566524022666220106154111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 10/18/2021] [Accepted: 11/25/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Autoimmune hepatitis (AIH) is an inflammatory liver disease that is characterized histologically by interface hepatitis, biochemically by elevated transaminase levels, and serologically by the presence of autoantibodies. Toll-like receptor (TLR)-4 is a TLR family member that, upon activation in hepatocytes, initiates a cascade of events. Interleukin-2 (IL-2) and tumour necrosis factor α (TNF-α) are potent inflammatory cytokines secreted in AIH, playing an important role in the early development of inflammation and hepatocyte damage. OBJECTIVES This study examined the role of cyclosporine in AIH and illustrated its actions on altered hepatic function in the silica-induced AIH model. METHODS AIH was induced in Wistar rats using sodium silicate. The rats were divided into four groups: the control group, silica-AIH group, cyclosporine-treated group, and prevention group. TLR-4 and IL-2 mRNA expressions in liver tissues were tested by RTPCR. RESULTS AIH was associated with up-regulation of liver enzymes, IL-2 and TLR-4 gene expression, while cyclosporine significantly down-regulated the expression of both. The relative quantity of TLR-4 mRNA was 1±0, 13.57±1.91, 4±0.38, and 2±0 in control, AIH, cyclosporine, and prevention groups, respectively (p<0.001). Also, the relative quantity of IL-2 mRNA was 1±0, 14.79±1.42, 7.07±0.96, and 3.4±0.55 in control, AIH, cyclosporine, and prevention groups, respectively (p<0.001). Additionally, immunohistochemical staining for TNF-α in liver sections was increased in the silica-AIH group but was found to decrease in the cyclosporine-treated and prevention groups. CONCLUSION This study advocates the therapeutic role of cyclosporine in treating immune-mediated hepatic diseases. Cyclosporine improves histological alterations in the liver and inhibits the production of proinflammatory cytokines.
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Affiliation(s)
| | - Ahmed M M Okasha
- Departments of Biochemistry, Minia University Minia 61511, Egypt
| | | | - Reham F Mohamed
- Pathology, Faculty of Medicine, Minia University Minia 61511, Egypt
| | - Sayed F Abdelwahab
- Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Taif University, Al-Haweiah, PO Box 11099, Taif 21944, Saudi Arabia
| | - Hatem A Mohamed
- Departments of Biochemistry, Minia University Minia 61511, Egypt
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Antioxidative and Anti-Inflammatory Effects of Lactobacillus plantarum ZS62 on Alcohol-Induced Subacute Hepatic Damage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:7337988. [PMID: 34912498 PMCID: PMC8668337 DOI: 10.1155/2021/7337988] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/24/2021] [Indexed: 02/07/2023]
Abstract
Lactobacillus plantarum ZS62 is a newly isolated strain from naturally fermented yogurt that might offer some beneficial effects in the setting of alcohol-induced subacute liver injury. The liver-protective effect of L. plantarum ZS62 was investigated by gavage feeding of mice with this Lactobacillus strain (1 × 109 CFU/kg BW) before alcohol administration daily for 7 days. We then compared hepatic morphology, liver function indexes, liver lipid levels, inflammation, oxidative stress levels, and mRNA expression of oxidative metabolism- and inflammation-related genes in mice that had been pretreated with Lactobacillus plantarum versus control mice that had not been pretreated. Our results showed that L. plantarum ZS62 attenuated alcohol-induced weight loss; prevented morphological changes in hepatocytes; reduced markers of liver damage including aspartate aminotransaminase (AST), alanine aminotransaminase (ALT), hyaluronidase (HAase), precollagen III (PC III), and inflammatory cytokines; and enhanced the antioxidative status. L. plantarum ZS62 also significantly downregulated inflammation-related genes and upregulated lipid- and oxidative-metabolism genes. Thus, Lactobacillus plantarum pretreatment appears to confer hepatic protection by reducing inflammation and enhancing antioxidative capacity. The protective effect of L. plantarum ZS62 was even better than that of a commonly used commercial lactic acid bacteria (Lactobacillus delbrueckii subsp. Bulgaricus). The L. plantarum ZS62 might be a potentially beneficial prophylactic treatment for people who frequently drink alcoholic beverages.
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Safinia N, Vaikunthanathan T, Lechler RI, Sanchez-Fueyo A, Lombardi G. Advances in Liver Transplantation: where are we in the pursuit of transplantation tolerance? Eur J Immunol 2021; 51:2373-2386. [PMID: 34375446 PMCID: PMC10015994 DOI: 10.1002/eji.202048875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 06/07/2021] [Accepted: 07/23/2021] [Indexed: 12/22/2022]
Abstract
Liver transplantation is the ultimate treatment option for end-stage liver disease. Breakthroughs in surgical practice and immunosuppression have seen considerable advancements in survival after transplantation. However, the intricate management of immunosuppressive regimens, balancing desired immunological quiescence while minimizing toxicity has proven challenging. Diminishing improvements in long-term morbidity and mortality have been inextricably linked with the protracted use of these medications. As such, there is now enormous interest to devise protocols that will allow us to minimize or completely withdraw immunosuppressants after transplantation. Immunosuppression withdrawal trials have proved the reality of tolerance following liver transplantation, however, without intervention will only occur after several years at the risk of potential cumulative immunosuppression-related morbidity. Focus has now been directed at accelerating this phenomenon through tolerance-inducing strategies. In this regard, efforts have seen the use of regulatory cell immunotherapy. Here we focus particularly on regulatory T cells, discussing preclinical data that propagated several clinical trials of adoptive cell therapy in liver transplantation. Furthermore, we describe efforts to further optimize the specificity and survival of regulatory cell therapy guided by concurrent immunomonitoring studies and the development of novel technologies including chimeric antigen receptors and co-administration of low-dose IL-2.
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Affiliation(s)
- Niloufar Safinia
- Division of Transplantation Immunology & Mucosal Biology, King's College London, London, UK
| | | | - Robert Ian Lechler
- Division of Transplantation Immunology & Mucosal Biology, King's College London, London, UK
| | | | - Giovanna Lombardi
- Division of Transplantation Immunology & Mucosal Biology, King's College London, London, UK
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4
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Mansour NM, Elkalla WS, Ragab YM, Ramadan MA. Inhibition of acetic acid-induced colitis in rats by new Pediococcus acidilactici strains, vitamin producers recovered from human gut microbiota. PLoS One 2021; 16:e0255092. [PMID: 34310635 PMCID: PMC8312973 DOI: 10.1371/journal.pone.0255092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/09/2021] [Indexed: 01/24/2023] Open
Abstract
Our aim was to isolate, identify and characterize probiotic bacteria as vitamin producers in particular B2 and B9. 150 human fecal samples were collected and used for isolation of vitamin producers—probiotics. 49 isolates were chosen for screening their genome by PCR for the presence of riboflavin and folic acid genes. As a result, three isolates were selected and their production of the B2 and B9 were confirmed by HPLC. The three isolates were identified on species level by sequencing their 16S rRNA gene which showed 100% identical to strains of Pediococcus acidilactici. Thus, they were named as P. acidilactici WNYM01, P. acidilactici WNYM02, P. acidilactici WNYM03 and submitted to the Genbank database with accession numbers. They met the probiotic criteria by expressing 90–95% survival rate at pH (2.0–9.0) and bile salt up to 2% for 3 h in addition to their antimicrobial activity against gram positive and negative microorganisms. They also showed no hemolytic activity and common pattern for antibiotic susceptibility. Our three strains were tested individually or in mixture in vivo on rat colitis model compared to ulcerative group. The strains were administrated orally to rats in daily dose containing CFU 109 for 14 days then followed by induction of colitis using acetic acid then the oral administration was continued for more four days. The histology results, the anti-inflammatory and anti-oxidative stress biomarkers showed the protective role of the strains compared to the ulcerative group. As a conclusion, we introduce novel three probiotic candidates for pharmaceutical preparations and health applications.
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Affiliation(s)
- Nahla M. Mansour
- Gut Microbiology & Immunology Group, Chemistry of Natural and Microbial Products Dept., Pharmaceutical Industries Div., National Research Centre, Cairo, Egypt
- * E-mail:
| | - Wagiha S. Elkalla
- Microbiology and Immunology Department, Faculty of Pharmacy, Badr University in Cairo, Cairo, Egypt
| | - Yasser M. Ragab
- Microbiology and Immunology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mohamed A. Ramadan
- Microbiology and Immunology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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5
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Gan Y, Tong J, Zhou X, Long X, Pan Y, Liu W, Zhao X. Hepatoprotective Effect of Lactobacillus plantarum HFY09 on Ethanol-Induced Liver Injury in Mice. Front Nutr 2021; 8:684588. [PMID: 34249992 PMCID: PMC8264191 DOI: 10.3389/fnut.2021.684588] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/28/2021] [Indexed: 01/30/2023] Open
Abstract
Lactobacillus plantarum is a bacterial strain that is used as a probiotic with health-promoting effects. Our study investigated the hepatoprotective effect of Lactobacillus plantarum HFY09 (LP-HFY09) in mice with ethanol-induced liver injury. The protection afforded by LP-HFY09 was evaluated by observing the morphology of hepatic tissue and measuring liver lipid indexes and function indexes, levels of anti-oxidative enzymes, and anti-inebriation enzymes, as well as oxidative metabolism-related gene expression. Gavage administration of LP-HFY09 [1 × 109 CFU/kg body weight (bw)] limited the loss of bw, alcohol damage to the liver, and maintained the normal hepatic tissue morphology. Lactobacillus plantarum HFY09 intervention in ethanol-induced mice led to decreases in serum triglyceride (TG), total cholesterol (TC), aspartic transaminase, alanine transaminase, hyaluronidase (HAase), and precollagen III (PC III), and increases in liver alcohol dehydrogenase (ADH), and acetaldehyde dehydrogenase (ALDH). Lactobacillus plantarum HFY09 assisted with alleviating inflammation by elevating the level of interleukin 10 (IL-10) and decreasing the levels of pro-inflammatory factors [IL-6, IL-1β, and tumor necrosis factor-α (TNF)-α]. Lactobacillus plantarum HFY09 significantly elevated hepatic levels of superoxide dismutase (SOD) and glutathione (GSH), and decreased liver malondialdehyde (MDA) from 3.45 to 1.64 nmol/mg protein. Lactobacillus plantarum HFY09 exhibited an overall strong regulatory effect on liver protection when compared to that of commercial Lactobacillus delbrueckii subsp. bulgaricus. The hepatoprotective effect of LP-HFY09 was reflected by the upregulated expression of peroxisome proliferator activated-receptors α, SOD1, SOD2, glutathione peroxidase (GSH-Px), nicotinamide adenine dinucleotide phosphate (NADPH), and catalase (CAT), and the downregulated expression of cyclooxygenase-1 (COX1), c-Jun N-terminal kinase (JNK), and extracellular regulated protein kinases (ERK). Administration of LP-HFY09 at a concentration of 1.0 × 109 CFU/kg bw could be a potential intervention, for people who frequently consume alcohol.
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Affiliation(s)
- Yi Gan
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
| | - Jin Tong
- Department of Gastroenterology and Hepatology, Chongqing Emergency Medical Center, Chongqing University Central Hospital, Chongqing, China
| | - Xianrong Zhou
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
| | - Xingyao Long
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
| | - Yanni Pan
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
| | - Weiwei Liu
- School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Xin Zhao
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
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6
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Li R, Mao Z, Ye X, Zuo T. Human Gut Microbiome and Liver Diseases: From Correlation to Causation. Microorganisms 2021; 9:1017. [PMID: 34066850 PMCID: PMC8151257 DOI: 10.3390/microorganisms9051017] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/25/2021] [Accepted: 04/30/2021] [Indexed: 02/06/2023] Open
Abstract
The important role of human gut microbiota in liver diseases has long been recognized as dysbiosis and the translocation of certain microbes from the gut to liver. With the development of high-throughput DNA sequencing, the complexity and integrity of the gut microbiome in the whole spectrum of liver diseases is emerging. Specific patterns of gut microbiota have been identified in liver diseases with different causes, including alcoholic, non-alcoholic, and virus induced liver diseases, or even at different stages, ranging from steatohepatitis, fibrosis, cirrhosis, to hepatocellular carcinoma. At the same time, the mechanism of how microbiota contributes to liver diseases goes beyond the traditional function of the gut-liver axis which could lead to liver injury and inflammation. With the application of proteomics, metabolomics, and modern molecular technologies, more microbial metabolites and the complicated interaction of microbiota with host immunity come into our understanding in the liver pathogenesis. Germ-free animal models serve as a workhorse to test the function of microbiota and their derivatives in liver disease models. Here, we review the current evidence on the relationship between gut microbiota and liver diseases, and the mechanisms underlying this phenotype. In addition to original liver diseases, gut microbiota might also affect liver injury in systemic disorders involving multiple organs, as in the case of COVID-19 at a severe state. A better understanding of the gut microbial contribution to liver diseases might help us better benefit from this guest-host relationship and pave the way for novel therapies.
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Affiliation(s)
- Rui Li
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan 430070, China;
| | - Zhengsheng Mao
- Department of Neurology, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China;
| | - Xujun Ye
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan 430070, China;
| | - Tao Zuo
- Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510000, China
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Ding Y, Li X, Liu Y, Wang S, Cheng D. Protection Mechanisms Underlying Oral Administration of Chlorogenic Acid against Cadmium-Induced Hepatorenal Injury Related to Regulating Intestinal Flora Balance. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1675-1683. [PMID: 33494608 DOI: 10.1021/acs.jafc.0c06698] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) is a heavy metal, which is widely used in the industry and daily life. It has a long half-life, so large amounts of Cd can accumulate in humans and become toxic. Chlorogenic acid (CGA) can eliminate free radicals and inhibit lipid peroxidation and is mainly used to prevent metal toxicity. In the present study, mice are given CGA by intraperitoneal injection or gavage, respectively, to explore the mechanism of preventing Cd toxicity. In acute Cd-exposed mice, CGA treatment (ip) alleviated Cd-induced oxidative damage and reduced the production of NO and MPO in the liver and kidney tissues, while TLR4 expression levels did not change significantly. After 8 weeks of Cd exposure, CGA administration (gavage) significantly alleviated gut dysbiosis by decreasing the Firmicutes to Bacteroidetes ratio, enhancing the relative abundances of bacteria, including Ruminiclostridium_9, Alloprevotella, and Rikenella, and inhibiting the activation of the TLR4/MyD88/NF-κB signaling pathway. These findings suggested that protection mechanisms underlying the oral administration of CGA against the Cd-induced hepatorenal injury was related to the regulation of the intestinal flora balance. CGA can be used as an effective component in daily diet to prevent Cd toxicity.
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Affiliation(s)
- Yixin Ding
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Xiang Li
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Yutong Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Shuo Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Dai Cheng
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
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Gut Microbiota and Liver Interaction through Immune System Cross-Talk: A Comprehensive Review at the Time of the SARS-CoV-2 Pandemic. J Clin Med 2020; 9:jcm9082488. [PMID: 32756323 PMCID: PMC7464500 DOI: 10.3390/jcm9082488] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/23/2020] [Accepted: 07/28/2020] [Indexed: 02/06/2023] Open
Abstract
Background and aims: The gut microbiota is a complex ecosystem containing bacteria, viruses, fungi, yeasts and other single-celled organisms. It is involved in the development and maintenance of both innate and systemic immunity of the body. Emerging evidence has shown its role in liver diseases through the immune system cross-talk. We review herein literature data regarding the triangular interaction between gut microbiota, immune system and liver in health and disease. Methods: We conducted a search on the main medical databases for original articles, reviews, meta-analyses, randomized clinical trials and case series using the following keywords and acronyms and their associations: gut microbiota, microbiome, gut virome, immunity, gastrointestinal-associated lymphoid tissue (GALT), non-alcoholic fatty liver disease (NAFLD), non-alcoholic steato-hepatitis (NASH), alcoholic liver disease, liver cirrhosis, hepatocellular carcinoma. Results: The gut microbiota consists of microorganisms that educate our systemic immunity through GALT and non-GALT interactions. The latter maintain health but are also involved in the pathophysiology and in the outcome of several liver diseases, particularly those with metabolic, toxic or immune-mediated etiology. In this context, gut virome has an emerging role in liver diseases and needs to be further investigated, especially due to the link reported between severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infection and hepatic dysfunctions. Conclusions: Changes in gut microbiota composition and alterations in the immune system response are involved in the pathogenesis of metabolic and immune-mediated liver diseases.
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Vasco M, Paolillo R, Schiano C, Sommese L, Cuomo O, Napoli C. Compromised nutritional status in patients with end-stage liver disease: Role of gut microbiota. Hepatobiliary Pancreat Dis Int 2018; 17:290-300. [PMID: 30173786 DOI: 10.1016/j.hbpd.2018.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 05/29/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Patients with end-stage liver disease (ESLD) have a compromised nutritional status because of the liver crucial role in regulating metabolic homeostasis and energy balance. DATA SOURCES A systematic review of literature based on extensive relevant articles published from 2001 to 2017 in English in PubMed database was performed by searching keywords such as liver disease, non-alcoholic liver disease, alcoholic liver disease, malnutrition, epigenetics, gut microbiota, and probiotics. RESULTS Liver transplantation would be one eligible therapy for ESLD patients, even if, the clinical outcome is negatively influenced by malnutrition and/or infections. The malnutrition is a condition of nutrient imbalance with a high incidence in ESLD patients. An accurate evaluation of nutritional status could be fundamental for reducing complications and prolonging the survival of ESLD patients including those undergoing liver transplantation. In addition, the interaction among nutrients, diet and genes via epigenetics has emerged as a potential target to reduce the morbidity and mortality in ESLD patients. The malnutrition induces changes in gut microbiota causing dysbiosis with a probable translocation of bacteria and/or pathogen-derived factors from the intestine to the liver. Gut microbiota contribute to the progression of chronic liver diseases as well as hepatocellular carcinoma. The administration of probiotics modulating gut microbiota could improve all chronic liver diseases. CONCLUSIONS This review provides an update on malnutrition status linked to epigenetics and the potential benefit of some probiotics on the management of ESLD patients. In support of this view and to reveal the constant and growing interest in this field, some clinical trials are reported.
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Affiliation(s)
- Maria Vasco
- U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Regional Reference Laboratory of Transplant Immunology, Department of Internal and Specialty Medicine, Azienda Ospedaliera Universitaria, Università degli Studi della Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Rossella Paolillo
- U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Regional Reference Laboratory of Transplant Immunology, Department of Internal and Specialty Medicine, Azienda Ospedaliera Universitaria, Università degli Studi della Campania "Luigi Vanvitelli", Naples 80138, Italy
| | | | - Linda Sommese
- U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Regional Reference Laboratory of Transplant Immunology, Department of Internal and Specialty Medicine, Azienda Ospedaliera Universitaria, Università degli Studi della Campania "Luigi Vanvitelli", Naples 80138, Italy; Department of Experimental Medicine, Università degli Studi della Campania "Luigi Vanvitelli", Naples 80138, Italy.
| | - Oreste Cuomo
- Department of Liver Transplant, AORN A. Cardarelli, Naples, Italy
| | - Claudio Napoli
- U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Regional Reference Laboratory of Transplant Immunology, Department of Internal and Specialty Medicine, Azienda Ospedaliera Universitaria, Università degli Studi della Campania "Luigi Vanvitelli", Naples 80138, Italy; IRCCS SDN, Naples, Italy; Department of Medical, Surgical, Neurological, Metabolic and Geriatric Sciences, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
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10
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Hartmann RM, Licks F, Schemitt EG, Colares JR, do Couto Soares M, Zabot GP, Fillmann HS, Marroni NP. Protective effect of glutamine on the main and adjacent organs damaged by ischemia-reperfusion in rats. PROTOPLASMA 2017; 254:2155-2168. [PMID: 28382390 DOI: 10.1007/s00709-017-1102-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 03/10/2017] [Indexed: 06/07/2023]
Abstract
Intestinal ischemia and reperfusion (I/R) causes cellular and tissue damage to the intestine and remote organs such as the liver. Increased production of ROS and nitric oxide and dysregulation of cytoprotective enzymes may be involved in intestinal I/R. The aim was to evaluate the protective effects of glutamine on the intestine and liver of rats with intestinal I/R injury. Twenty male Wistar rats (300 g) were divided into four groups: sham-operated (SO), glutamine + SO (G + SO), I/R, and glutamine + I/R (G + I/R). Occlusion of the SMA for 30 min was followed by 15-min reperfusion. Glutamine (25 mg/kg/day) was administered once daily 24 and 48 h before I/R induction. Blood and tissue of were collected for aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels, histopathological analysis, immunohistochemistry of IL-1β and TNF-α, thiobarbituric acid reactive substance (TBARS) and nitric oxide, Nrf2/keap1, superoxide dismutase (SOD), NADPH quinone oxidoreductase1 (NQO1), inducible nitric oxide synthase (iNOS), heat shock protein (HSP70), glucose-regulated protein 78 (GRP78), and activating transcription factor 6 (ATF-6) by western blot. Statistic analysis by ANOVA-Student-Newman-Keuls test (mean ± SE) significantly was p < 0.05. Tissue damage, AST, ALT, IL-1β, TNF-α, TBARS, NO, Keap1, iNOS, GRP78, and ATF-6 expression were significantly lower in the G + I/R group as compared to the I/R group. Expression of Nrf2, SOD, NQO1, and HSP70, was significantly higher in the G + I/R group as compared to I/R group. Pre-treatment with glutamine provided protection against oxidative damage in the intestine and liver in an experimental model of intestinal I/R.
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Affiliation(s)
- Renata Minuzzo Hartmann
- Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre - HCPA, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil
| | - Francielli Licks
- Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre - HCPA, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil
| | - Elizângela Gonçalves Schemitt
- Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre - HCPA, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil
| | - Josieli Raskopf Colares
- Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre - HCPA, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil
| | - Mariana do Couto Soares
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre - HCPA, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil
| | - Gilmara Pandolfo Zabot
- Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Henrique Sarubbi Fillmann
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre - HCPA, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil
- Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Norma Possa Marroni
- Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.
- Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre - HCPA, Porto Alegre, Rio Grande do Sul, Brazil.
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil.
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Zhao L, Jiang Y, Ni Y, Zhang T, Duan C, Huang C, Zhao Y, Gao L, Li S. Protective effects of Lactobacillus plantarum C88 on chronic ethanol-induced liver injury in mice. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.05.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Zevin AS, Moats C, May D, Wangari S, Miller C, Ahrens J, Iwayama N, Brown M, Bratt D, Klatt NR, Smedley J. Laparoscopic Technique for Serial Collection of Liver and Mesenteric Lymph Nodes in Macaques. J Vis Exp 2017. [PMID: 28518089 PMCID: PMC5565146 DOI: 10.3791/55617] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The mesenteric lymph nodes (MLN) and the liver are exposed to microbes and microbial products from the gastrointestinal (GI) tract, making them immunologically unique. The GI tract and associated MLN are sites of early viral replication in human immunodeficiency virus (HIV) infection and the MLN are likely important reservoir sites that harbor latently-infected cells even after prolonged antiretroviral therapy (ART). The liver has been shown to play a significant role in immune responses to lentiviruses and appears to play a significant role in clearance of virus from circulation. Nonhuman primate (NHP) models for HIV and Acquired Immunodeficiency Syndrome (AIDS) closely mimic these aspects of HIV infection and serial longitudinal sampling of primary sites of viral replication and the associated immune responses in this model will help to elucidate critical events in infection, pathogenesis, and the impact of various intervention strategies on these events. Current published techniques to sample liver and MLN together involve major surgery and/or necropsy, which limits the ability to investigate these important sites in a serial fashion in the same animal. We have previously described a laparoscopic technique for collection of MLN. Here, we describe a minimally invasive laparoscopic technique for serial longitudinal sampling of liver and MLN through the same two port locations required for the collection of MLN. The use of the same two ports minimizes the impact to the animals as no additional incisions are required. This technique can be used with increased sampling frequency compared to major abdominal surgery and reduces the potential for surgical complications and associated local and systemic inflammatory responses that could complicate interpretation of results. This procedure has potential to facilitate studies involving NHP models while improving animal welfare.
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Affiliation(s)
- Alexander S Zevin
- Department of Pharmaceutics, Washington National Primate Research Center, University of Washington
| | - Cassie Moats
- Division of Primate Resources, Washington National Primate Research Center, University of Washington
| | - Drew May
- Division of Primate Resources, Washington National Primate Research Center, University of Washington
| | - Solomon Wangari
- Division of Primate Resources, Washington National Primate Research Center, University of Washington
| | - Charlene Miller
- Department of Pharmaceutics, Washington National Primate Research Center, University of Washington
| | - Joel Ahrens
- Division of Primate Resources, Washington National Primate Research Center, University of Washington
| | - Naoto Iwayama
- Division of Primate Resources, Washington National Primate Research Center, University of Washington
| | - Megan Brown
- Division of Primate Resources, Washington National Primate Research Center, University of Washington
| | - Debbie Bratt
- Division of Primate Resources, Washington National Primate Research Center, University of Washington
| | - Nichole R Klatt
- Department of Pharmaceutics, Washington National Primate Research Center, University of Washington
| | - Jeremy Smedley
- Division of Primate Resources, Washington National Primate Research Center, University of Washington;
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Kiziltas S. Toll-like receptors in pathophysiology of liver diseases. World J Hepatol 2016; 8:1354-1369. [PMID: 27917262 PMCID: PMC5114472 DOI: 10.4254/wjh.v8.i32.1354] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 08/17/2016] [Accepted: 09/21/2016] [Indexed: 02/06/2023] Open
Abstract
Toll-like receptors (TLRs) are pattern recognition receptors that participate in host defense by recognizing pathogen-associated molecular patterns alongside inflammatory processes by recognizing damage associated molecular patterns. Given constant exposure to pathogens from gut, strict control of TLR-associated signaling pathways is essential in the liver, which otherwise may lead to inappropriate production of pro-inflammatory cytokines and interferons and may generate a predisposition to several autoimmune and chronic inflammatory diseases. The liver is considered to be a site of tolerance induction rather than immunity induction, with specificity in hepatic cell functions and distribution of TLR. Recent data emphasize significant contribution of TLR signaling in chronic liver diseases via complex immune responses mediating hepatocyte (i.e., hepatocellular injury and regeneration) or hepatic stellate cell (i.e., fibrosis and cirrhosis) inflammatory or immune pathologies. Herein, we review the available data on TLR signaling, hepatic expression of TLRs and associated ligands, as well as the contribution of TLRs to the pathophysiology of hepatic diseases.
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Affiliation(s)
- Safak Kiziltas
- Safak Kiziltas, Department of Gastroenterology, Baskent University Istanbul Hospital, 34662 Istanbul, Turkey
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