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Zhao C, Liu L, Liu Q, Li F, Zhang L, Zhu F, Shao T, Barve S, Chen Y, Li X, McClain CJ, Feng W. Fibroblast growth factor 21 is required for the therapeutic effects of Lactobacillus rhamnosus GG against fructose-induced fatty liver in mice. Mol Metab 2019; 29:145-157. [PMID: 31668386 PMCID: PMC6812038 DOI: 10.1016/j.molmet.2019.08.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/24/2019] [Accepted: 08/29/2019] [Indexed: 02/07/2023] Open
Abstract
Objectives High fructose feeding changes fibroblast growth factor 21 (FGF21) regulation. Lactobacillus rhamnosus GG (LGG) supplementation reduces fructose-induced non-alcoholic fatty liver disease (NAFLD). The aim of this study was to determine the role of FGF21 and underlying mechanisms in the protective effects of LGG. Methods FGF21 knockout (KO) mice and C57BL/6 wild type (WT) mice were fed 30% fructose for 12 weeks. LGG was administered to the mice in the last 4 weeks during fructose feeding. FGF21-adiponectin (ADPN)-mediated hepatic lipogenesis and inflammation were investigated. Results FGF21 expression was robustly increased after 5-weeks of feeding and significantly decreased after 12-weeks of feeding in fructose-induced NAFLD mice. LGG administration reversed the depressed FGF21 expression, increased adipose production of ADPN, and reduced hepatic fat accumulation and inflammation in the WT mice but not in the KO mice. Hepatic nuclear carbohydrate responsive-element binding protein (ChREBP) was increased by fructose and reduced by LGG, resulting in a reduction in the expression of lipogenic genes. The methylated form of protein phosphatase 2A (PP2A) C, which dephosphorylates and activates ChREBP, was upregulated by fructose and normalized by LGG. Leucine carboxyl methyltransferase-1, which methylates PP2AC, was also increased by fructose and decreased by LGG. However, those beneficial effects of LGG were blunted in the KO mice. Hepatic dihydrosphingosine-1-phosphate, which inhibits PP2A, was markedly increased by LGG in the WT mice but attenuated in the KO mice. LGG decreased adipose hypertrophy and increased serum levels of ADPN, which regulates sphingosine metabolism. This beneficial effect was decreased in the KO mice. Conclusion LGG administration increases hepatic FGF21 expression and serum ADPN concentration, resulting in a reduced ChREBP activation through dihydrosphingosine-1-phosphate-mediated PP2A deactivation, and subsequently reversed fructose-induced NAFLD. Thus, our data suggest that FGF21 is required for the beneficial effects of LGG in reversal of fructose-induced NAFLD. Lactobacillus rhamnosus GG (LGG) attenuates fructose-induced NAFLD. LGG increases FGF21 and adiponectin expression. LGG inhibits fructose-activated ChREBP and reduces hepatic lipogenesis. FGF21 is required for the therapeutic effects of LGG against fructose-induced NAFLD.
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Affiliation(s)
- Cuiqing Zhao
- College of Animal Science and Technology, Key Lab of Preventive Veterinary Medicine in Jilin Province, Jilin Agricultural Science and Technology University, Jilin, Jilin 132101, China; Department of Medicine, University of Louisville, Louisville, KY 40202, USA; Institute of Virology, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Liming Liu
- College of Animal Science and Technology, Key Lab of Preventive Veterinary Medicine in Jilin Province, Jilin Agricultural Science and Technology University, Jilin, Jilin 132101, China; Department of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Qi Liu
- Department of Medicine, University of Louisville, Louisville, KY 40202, USA; Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Fengyuan Li
- Department of Medicine, University of Louisville, Louisville, KY 40202, USA; Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40202, USA
| | - Lihua Zhang
- Department of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Fenxia Zhu
- Department of Medicine, University of Louisville, Louisville, KY 40202, USA; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
| | - Tuo Shao
- Department of Medicine, University of Louisville, Louisville, KY 40202, USA; Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40202, USA
| | - Shirish Barve
- Department of Medicine, University of Louisville, Louisville, KY 40202, USA; Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40202, USA; Hepatobiology & Toxicology Center, University of Louisville, Louisville, KY 40202, USA; Alcohol Research Center, University of Louisville, Louisville, KY 40202, USA
| | - Yiping Chen
- Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Xiaokun Li
- Institute of Virology, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Craig J McClain
- Department of Medicine, University of Louisville, Louisville, KY 40202, USA; Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40202, USA; Robley Rex VA Medical Center, Louisville, KY 40206, USA; Hepatobiology & Toxicology Center, University of Louisville, Louisville, KY 40202, USA; Alcohol Research Center, University of Louisville, Louisville, KY 40202, USA
| | - Wenke Feng
- Department of Medicine, University of Louisville, Louisville, KY 40202, USA; Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40202, USA; Hepatobiology & Toxicology Center, University of Louisville, Louisville, KY 40202, USA; Alcohol Research Center, University of Louisville, Louisville, KY 40202, USA.
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Periostin in chronic liver diseases: Current research and future perspectives. Life Sci 2019; 226:91-97. [PMID: 30978348 DOI: 10.1016/j.lfs.2019.04.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/26/2019] [Accepted: 04/08/2019] [Indexed: 01/06/2023]
Abstract
The liver is importantly metabolic and detoxifying organ in the body. When various pathogenic factors affect the liver, the normal physiological and biochemical functions are weakened, resulting in liver diseases. Liver fibrosis is a common pathological process of chronic liver disease. During hepatic fibrosis the changes in the components of the extracellular matrix (ECM) provide an environment that facilitates tissue remodeling. Among these ECM components, periostin, a glycoprotein that is predominantly secreted by osteoblasts and their precursors, playing an important role in bone formation, has attracted great attention. Periostin not only involves in bone metabolism, but also functions in modulating the cell fate determination, proliferation, inflammatory responses, even tumorigenesis of many other tissues and organs including liver. In different categories of liver disease patients, the serum and liver tissue levels of periostin were closely related to the decline of liver function, and the pathological stage. Numerous animal studies and experiments in vitro subsequently demonstrated that the abnormal expression of periostin resulted in metabolic disorders, liver inflammation, fibrosis and even tumorigenesis. Here we review the current progress on the role of periostin in pathologic pathways of liver system to explore whether periostin is a potential therapeutic target for the treatment of different liver diseases.
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Albracht-Schulte K, Kalupahana NS, Ramalingam L, Wang S, Rahman SM, Robert-McComb J, Moustaid-Moussa N. Omega-3 fatty acids in obesity and metabolic syndrome: a mechanistic update. J Nutr Biochem 2018; 58:1-16. [PMID: 29621669 DOI: 10.1016/j.jnutbio.2018.02.012] [Citation(s) in RCA: 166] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/24/2018] [Accepted: 02/22/2018] [Indexed: 02/06/2023]
Abstract
Strategies to reduce obesity have become public health priorities as the prevalence of obesity has risen in the United States and around the world. While the anti-inflammatory and hypotriglyceridemic properties of long-chain omega-3 polyunsaturated fatty acids (n-3 PUFAs) are well known, their antiobesity effects and efficacy against metabolic syndrome, especially in humans, are still under debate. In animal models, evidence consistently suggests a role for n-3 PUFAs in reducing fat mass, particularly in the retroperitoneal and epididymal regions. In humans, however, published research suggests that though n-3 PUFAs may not aid weight loss, they may attenuate further weight gain and could be useful in the diet or as a supplement to help maintain weight loss. Proposed mechanisms by which n-3 PUFAs may work to improve body composition and counteract obesity-related metabolic changes include modulating lipid metabolism; regulating adipokines, such as adiponectin and leptin; alleviating adipose tissue inflammation; promoting adipogenesis and altering epigenetic mechanisms.
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Affiliation(s)
- Kembra Albracht-Schulte
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Nishan Sudheera Kalupahana
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA; Department of Physiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka.
| | - Latha Ramalingam
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Shu Wang
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Shaikh Mizanoor Rahman
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Jacalyn Robert-McComb
- Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA; Department of Kinesiology, Texas Tech University, Lubbock, TX, USA
| | - Naima Moustaid-Moussa
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA.
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Yang W, Chen X, Liu Y, Chen M, Jiang X, Shen T, Li Q, Yang Y, Ling W. N-3 polyunsaturated fatty acids increase hepatic fibroblast growth factor 21 sensitivity via a PPAR-γ-β-klotho pathway. Mol Nutr Food Res 2017; 61. [DOI: 10.1002/mnfr.201601075] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/03/2017] [Accepted: 03/15/2017] [Indexed: 01/05/2023]
Affiliation(s)
- Wenqi Yang
- Department of Nutrition; School of Public Health; Sun Yat-Sen University; Guangzhou P. R. China
- Guangdong Provincial Key Laboratory of Food; Nutrition and Health; Guangzhou P. R. China
| | - Xu Chen
- Department of Nutrition; School of Public Health; Sun Yat-Sen University; Guangzhou P. R. China
- Guangdong Provincial Key Laboratory of Food; Nutrition and Health; Guangzhou P. R. China
| | - Yan Liu
- Department of Medicine; University of Hong Kong; Hong Kong China
| | - Ming Chen
- Department of Nutrition; School of Public Health; Sun Yat-Sen University; Guangzhou P. R. China
- Guangdong Provincial Key Laboratory of Food; Nutrition and Health; Guangzhou P. R. China
| | - Xinwei Jiang
- Department of Nutrition; School of Public Health; Sun Yat-Sen University; Guangzhou P. R. China
- Guangdong Provincial Key Laboratory of Food; Nutrition and Health; Guangzhou P. R. China
| | - Tianran Shen
- Department of Nutrition; School of Public Health; Sun Yat-Sen University; Guangzhou P. R. China
- Guangdong Provincial Key Laboratory of Food; Nutrition and Health; Guangzhou P. R. China
| | - Qing Li
- Department of Nutrition; School of Public Health; Sun Yat-Sen University; Guangzhou P. R. China
- Guangdong Provincial Key Laboratory of Food; Nutrition and Health; Guangzhou P. R. China
| | - Yan Yang
- Department of Nutrition; School of Public Health; Sun Yat-Sen University; Guangzhou P. R. China
- Guangdong Provincial Key Laboratory of Food; Nutrition and Health; Guangzhou P. R. China
| | - Wenhua Ling
- Department of Nutrition; School of Public Health; Sun Yat-Sen University; Guangzhou P. R. China
- Guangdong Provincial Key Laboratory of Food; Nutrition and Health; Guangzhou P. R. China
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Norling LV, Ly L, Dalli J. Resolving inflammation by using nutrition therapy: roles for specialized proresolving mediators. Curr Opin Clin Nutr Metab Care 2017; 20:145-152. [PMID: 28002074 PMCID: PMC5884427 DOI: 10.1097/mco.0000000000000353] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW Inflammation is a unifying component of many of the diseases that afflict Western civilizations. Nutrition therapy and, in particular, essential fatty acid supplementation is one of the approaches that is currently in use for the treatment and management of many inflammatory conditions. The purpose of the present review is to discuss the recent literature in light of the discovery that essential fatty acids are converted by the body to a novel genus of lipid mediators, termed specialized proresolving mediators (SPMs). RECENT FINDINGS The SPM genus is composed of four mediator families - the lipoxins, resolvins, protectins, and maresins. These molecules potently and stereoselectively promote the termination of inflammation, tissue repair, and regeneration. Recent studies indicate that in disease, SPM production becomes dysregulated giving rise to a status of failed resolution. Of note, several studies found that omega-3 fatty acid supplementation, at doses within the recommended daily allowance, led to increases in several SPM families that correlate with enhanced white blood cell responses in humans and reduced inflammation in mice. SUMMARY Given the potent biological actions of SPM in organ protection and promoting bacterial clearance, nutritional therapies enriched in omega-3 fatty acids hold promise as a potential co-therapy approach when coupled with functional lipid mediator profiling.
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Affiliation(s)
- Lucy V Norling
- The William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom
| | - Lucy Ly
- The William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom
- QMUL Lipid Mediator Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom
| | - Jesmond Dalli
- The William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom
- QMUL Lipid Mediator Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom
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