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de La Bourdonnaye G, Ghazalova T, Fojtik P, Kutalkova K, Bednar D, Damborsky J, Rotrekl V, Stepankova V, Chaloupkova R. Computer-aided engineering of stabilized fibroblast growth factor 21. Comput Struct Biotechnol J 2024; 23:942-951. [PMID: 38379823 PMCID: PMC10877085 DOI: 10.1016/j.csbj.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/03/2024] [Accepted: 02/03/2024] [Indexed: 02/22/2024] Open
Abstract
FGF21 is an endocrine signaling protein belonging to the family of fibroblast growth factors (FGFs). It has emerged as a molecule of interest for treating various metabolic diseases due to its role in regulating glucogenesis and ketogenesis in the liver. However, FGF21 is prone to heat, proteolytic, and acid-mediated degradation, and its low molecular weight makes it susceptible to kidney clearance, significantly reducing its therapeutic potential. Protein engineering studies addressing these challenges have generally shown that increasing the thermostability of FGF21 led to improved pharmacokinetics. Here, we describe the computer-aided design and experimental characterization of FGF21 variants with enhanced melting temperature up to 15 °C, uncompromised efficacy at activation of MAPK/ERK signaling in Hep G2 cell culture, and ability to stimulate proliferation of Hep G2 and NIH 3T3 fibroblasts cells comparable with FGF21-WT. We propose that stabilizing the FGF21 molecule by rational design should be combined with other reported stabilization strategies to maximize the pharmaceutical potential of FGF21.
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Affiliation(s)
- Gabin de La Bourdonnaye
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
| | - Tereza Ghazalova
- Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
| | - Petr Fojtik
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | - David Bednar
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Jiri Damborsky
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Vladimir Rotrekl
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | | | - Radka Chaloupkova
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
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2
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Domouzoglou EM, Vlahos AP, Papafaklis MI, Cholevas VK, Chaliasos N, Siomou E, Michalis LK, Tsatsoulis A, Naka KK. Role of FGF21 and Leptin for the Diagnosis of Metabolic Health in Children with and without Obesity. J Pers Med 2023; 13:1680. [PMID: 38138907 PMCID: PMC10744927 DOI: 10.3390/jpm13121680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/24/2023] Open
Abstract
Obesity and unfavorable metabolic profiles increase the risk for cardiovascular complications in adults. Although it is important to distinguish different metabolic health states at an early stage, there are limited data on the related value of biomarkers in childhood. We aimed to identify biomarkers for the detection of different metabolic health states in children with and without obesity. The serum levels of metabolic regulators (fibroblast growth factor 21 [FGF21], leptin, adiponectin and insulin-like growth factor binding protein 1) and vascular indices (flow-mediated dilation [FMD] and carotid intima-media thickness) were assessed in 78 children. Differences between the metabolically healthy and unhealthy state within children with normal weight (MHN vs. MUN), and within children with overweight/obesity (MHO vs. MUO) were investigated; the discriminatory power of the biomarkers was studied. Both MUN and MUO groups expressed altered lipid and glucose homeostasis compared to their healthy counterparts. The metabolic unhealthy state in children with normal weight was linked to higher FGF21 levels which had good discriminatory ability (area under the curve [AUC]: 0.71, 95% CI: 0.54-0.88; p = 0.044). In overweight/obese children, leptin was increased in the metabolically unhealthy subgroup (AUC: 0.81, 95% CI: 0.68-0.95; p = 0.01). There was a decrease in FMD indicating worse endothelial function in overweight/obese children versus those with normal weight. Distinct states of metabolic health exist in both children with normal weight and overweight/obese children. FGF21 and leptin may help to identify the metabolic unhealthy state in children with normal weight and in overweight/obese children, respectively, early in life.
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Affiliation(s)
- Eleni M. Domouzoglou
- Child Health Department, Faculty of Medicine, School of Health Sciences, University of Ioannina, Stavrou Niarchou, 45110 Ioannina, Greece
| | - Antonios P. Vlahos
- Child Health Department, Faculty of Medicine, School of Health Sciences, University of Ioannina, Stavrou Niarchou, 45110 Ioannina, Greece
| | - Michail I. Papafaklis
- Second Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Stavrou Niarchou, 45110 Ioannina, Greece; (M.I.P.); (K.K.N.)
| | - Vasileios K. Cholevas
- Child Health Department, Faculty of Medicine, School of Health Sciences, University of Ioannina, Stavrou Niarchou, 45110 Ioannina, Greece
| | - Nikolaos Chaliasos
- Child Health Department, Faculty of Medicine, School of Health Sciences, University of Ioannina, Stavrou Niarchou, 45110 Ioannina, Greece
| | - Ekaterini Siomou
- Child Health Department, Faculty of Medicine, School of Health Sciences, University of Ioannina, Stavrou Niarchou, 45110 Ioannina, Greece
| | - Lampros K. Michalis
- Second Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Stavrou Niarchou, 45110 Ioannina, Greece; (M.I.P.); (K.K.N.)
| | - Agathocles Tsatsoulis
- Department of Endocrinology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Stavrou Niarchou, 45110 Ioannina, Greece
| | - Katerina K. Naka
- Second Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Stavrou Niarchou, 45110 Ioannina, Greece; (M.I.P.); (K.K.N.)
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Kohya R, Suda G, Ohara M, Sasaki T, Yoda T, Sakurai N, Yoshida S, Fu Q, Yang Z, Hosoda S, Maehara O, Ohnishi S, Tokuchi Y, Kitagataya T, Suzuki K, Kawagishi N, Nakai M, Sho T, Natsuizaka M, Ogawa K, Sakamoto N. Potential Correlation between Changes in Serum FGF21 Levels and Lenvatinib-Induced Appetite Loss in Patients with Unresectable Hepatocellular Carcinoma. Cancers (Basel) 2023; 15:3257. [PMID: 37370867 DOI: 10.3390/cancers15123257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 06/29/2023] Open
Abstract
Lenvatinib, used for unresectable hepatocellular carcinoma (HCC), causes appetite loss, but the underlying mechanisms, clinical impact, and predictive factors have been unclear. The endocrine factor FGF21 modulates appetite and is involved in cachexia. We evaluated the association between FGF21 level changes during lenvatinib treatment for unresectable HCC and appetite loss. Sixty-three eligible unresectable HCC patients who started lenvatinib treatment between 2018 and 2021 were included. We analyzed FGF21 levels at baseline; 1, 2, and 4 weeks after lenvatinib initiation, and before the onset of appetite loss. Grade ≥ 2 lenvatinib-induced appetite loss led to liver functional reserve deterioration at disease progression and a poor prognosis. Baseline characteristics and serum FGF21 levels were similar between patients with and without appetite loss. However, the serum FGF21 change rate increased significantly at 4 weeks post-lenvatinib initiation in patients with grade ≥ 2 appetite loss, as compared to those without appetite loss. Similar significant increases in the serum FGF21 level change rate were observed prior to grade ≥ 2 appetite loss onset. This suggests that changes in FGF21 levels can be used to predict patients with a greater risk of marked appetite loss and provides insights into the mechanisms underlying lenvatinib-induced appetite loss in patients with HCC.
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Grants
- 23fk0210126h0001, 23fk0310501h0002, 23fk0210121h0001, 23fk0210112h0002, 23fk0210111h0002, 23fk0310524h0002, 23fk0210083h0003, 23fk0210113h0002, 23fk0210104h0002, 23fk0210103h0002, 23fk0310518h0002, 23fk0210123h0001 Japan Agency for Medical Research and Development
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Affiliation(s)
- Risako Kohya
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Goki Suda
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Masatsugu Ohara
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Takashi Sasaki
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Tomoka Yoda
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Naofumi Sakurai
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Sonoe Yoshida
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Qingjie Fu
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Zijian Yang
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Shunichi Hosoda
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Osamu Maehara
- Laboratory of Molecular and Cellular Medicine, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-8648, Japan
| | - Shunsuke Ohnishi
- Laboratory of Molecular and Cellular Medicine, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-8648, Japan
| | - Yoshimasa Tokuchi
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Takashi Kitagataya
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Kazuharu Suzuki
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Naoki Kawagishi
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Masato Nakai
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Takuya Sho
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Mitsuteru Natsuizaka
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Koji Ogawa
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Naoya Sakamoto
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
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4
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Meng F, Khoso MH, Kang K, He Q, Cao Y, Jiang X, Xiao W, Li D. FGF21 ameliorates hepatic fibrosis by multiple mechanisms. Mol Biol Rep 2021; 48:7153-7163. [PMID: 34536190 DOI: 10.1007/s11033-021-06707-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 09/09/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Previous study reports that fibroblast growth factor 21 (FGF21) could ameliorate hepatic fibrosis, but its mechanisms have not been fully investigated. METHODS AND RESULTS In this study, three models were used to investigate the mechanism by which FGF21 alleviates liver fibrosis. Hepatic fibrosis animal models were respectively induced by CCL4 and dimethylnitrosamine. Our results demonstrated that liver index and liver function were deteriorated in both models. Hematoxylin and eosin and Masson's staining showed that the damaged tissue architectonics were observed in the mice of both models. Treatment with FGF21 significantly ameliorated these changes. ELISA analysis showed that the serum levels of IL-1β, IL-6 and TNF-α were significantly elevated in both models. However, administration of FGF21 significantly reduced these inflammatory cytokines. Real-time PCR and Western blot analysis showed that treatment with FGF21 significantly decreased mRNA and protein expressions of collagenI, α-SMA and TGF-β. Platelet-derived growth factor-BB (PDGF-BB) stimulant was used to establish the experimental cell model in hepatic stellate cells (HSCs). Real-time PCR and Western blot analysis demonstrated that the expression of collagenI and α-SMA were significantly upregulated by this stimulant in model group. Interestingly, our results showed that mRNA and protein expressions of leptin were also significantly induced in PDGF-BB treated HSCs. Administration of FGF21 significantly reduced leptin expression in a dose dependent manner and these effects were reversed in siRNA (against β-klotho) transfected HSCs. Furthermore, the leptin signaling pathways related protein p-ERK/t-ERK, p-STAT3/STAT3 and TGF-β were significantly downregulated by FGF21 treatment in a dose dependent manner. The expressions of SOCS3 and Nrf-2 were enhanced by treatment with FGF21. The underlying mechanism may be that FGF21 regulates leptin-STAT3 axis via Nrf-2 and SOCS3 pathway in activated HSCs. CONCLUSIONS FGF21 ameliorates hepatic fibrosis by multiple mechanisms.
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Affiliation(s)
- Fanrui Meng
- Northeast Agricultural University, Harbin, China
| | - Mir Hassan Khoso
- Department of Biochemistry, Shaheed Mohtarma Benazir Bhutto Medical University, Larkana, Pakistan
| | - Kai Kang
- Northeast Agricultural University, Harbin, China
| | - Qi He
- Northeast Agricultural University, Harbin, China
| | - Yukai Cao
- Northeast Agricultural University, Harbin, China
| | | | - Wei Xiao
- Jiangsu Kanion Pharmaceutical CO. LTD, Jiangsu, Lianyungang, State Key Laboratory of New-Tech for Chinese Medicine Pharmaceutical Process, Jiangsu, 220000, China.
| | - Deshan Li
- Northeast Agricultural University, Harbin, China.
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5
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Tillman EJ, Rolph T. FGF21: An Emerging Therapeutic Target for Non-Alcoholic Steatohepatitis and Related Metabolic Diseases. Front Endocrinol (Lausanne) 2020; 11:601290. [PMID: 33381084 PMCID: PMC7767990 DOI: 10.3389/fendo.2020.601290] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/12/2020] [Indexed: 12/13/2022] Open
Abstract
The rising global prevalence of obesity, metabolic syndrome, and type 2 diabetes has driven a sharp increase in non-alcoholic fatty liver disease (NAFLD), characterized by excessive fat accumulation in the liver. Approximately one-sixth of the NAFLD population progresses to non-alcoholic steatohepatitis (NASH) with liver inflammation, hepatocyte injury and cell death, liver fibrosis and cirrhosis. NASH is one of the leading causes of liver transplant, and an increasingly common cause of hepatocellular carcinoma (HCC), underscoring the need for intervention. The complex pathophysiology of NASH, and a predicted prevalence of 3-5% of the adult population worldwide, has prompted drug development programs aimed at multiple targets across all stages of the disease. Currently, there are no approved therapeutics. Liver-related morbidity and mortality are highest in more advanced fibrotic NASH, which has led to an early focus on anti-fibrotic approaches to prevent progression to cirrhosis and HCC. Due to limited clinical efficacy, anti-fibrotic approaches have been superseded by mechanisms that target the underlying driver of NASH pathogenesis, namely steatosis, which drives hepatocyte injury and downstream inflammation and fibrosis. Among this wave of therapeutic mechanisms targeting the underlying pathogenesis of NASH, the hormone fibroblast growth factor 21 (FGF21) holds considerable promise; it decreases liver fat and hepatocyte injury while suppressing inflammation and fibrosis across multiple preclinical studies. In this review, we summarize preclinical and clinical data from studies with FGF21 and FGF21 analogs, in the context of the pathophysiology of NASH and underlying metabolic diseases.
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Tassi E, Garman KA, Schmidt MO, Ma X, Kabbara KW, Uren A, Tomita Y, Goetz R, Mohammadi M, Wilcox CS, Riegel AT, Carlstrom M, Wellstein A. Fibroblast Growth Factor Binding Protein 3 (FGFBP3) impacts carbohydrate and lipid metabolism. Sci Rep 2018; 8:15973. [PMID: 30374109 PMCID: PMC6206164 DOI: 10.1038/s41598-018-34238-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 10/10/2018] [Indexed: 12/15/2022] Open
Abstract
Secreted FGF binding proteins (FGFBP) mobilize locally-acting paracrine FGFs from their extracellular storage. Here, we report that FGFBP3 (BP3) modulates fat and glucose metabolism in mouse models of metabolic syndrome. BP3 knockout mice exhibited altered lipid metabolism pathways with reduced hepatic and serum triglycerides. In obese mice the expression of exogenous BP3 reduced hyperglycemia, hepatosteatosis and weight gain, blunted de novo lipogenesis in liver and adipose tissues, increased circulating adiponectin and decreased NEFA. The BP3 protein interacts with endocrine FGFs through its C-terminus and thus enhances their signaling. We propose that BP3 may constitute a new therapeutic to reverse the pathology associated with metabolic syndrome that includes nonalcoholic fatty liver disease and type 2 diabetes mellitus.
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Affiliation(s)
- Elena Tassi
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, School of Medicine, Washington, DC, 20007, USA
| | - Khalid A Garman
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, School of Medicine, Washington, DC, 20007, USA
| | - Marcel O Schmidt
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, School of Medicine, Washington, DC, 20007, USA
| | - Xiaoting Ma
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, School of Medicine, Washington, DC, 20007, USA
| | - Khaled W Kabbara
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, School of Medicine, Washington, DC, 20007, USA
| | - Aykut Uren
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, School of Medicine, Washington, DC, 20007, USA
| | - York Tomita
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, School of Medicine, Washington, DC, 20007, USA
| | - Regina Goetz
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, 10016, USA
| | - Moosa Mohammadi
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, 10016, USA
| | - Christopher S Wilcox
- Division of Nephrology and Hypertension, Kidney, and Vascular Research Center, Georgetown University, School of Medicine, Washington, DC, 20007, USA
| | - Anna T Riegel
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, School of Medicine, Washington, DC, 20007, USA
| | - Mattias Carlstrom
- Division of Nephrology and Hypertension, Kidney, and Vascular Research Center, Georgetown University, School of Medicine, Washington, DC, 20007, USA.,Department of Physiology & Pharmacology, Karolinska Institutet S-17177, Stockholm, Sweden
| | - Anton Wellstein
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, School of Medicine, Washington, DC, 20007, USA.
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7
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Wu H, Liu Y, Chen X, Zhu D, Ma J, Yan Y, Si M, Li X, Sun C, Yang B, He Q, Chen K. Neohesperidin Exerts Lipid-Regulating Effects in vitro and in vivo via Fibroblast Growth Factor 21 and AMP-Activated Protein Kinase/Sirtuin Type 1/Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1α Signaling Axis. Pharmacology 2017; 100:115-126. [PMID: 28554169 DOI: 10.1159/000452492] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 10/14/2016] [Indexed: 12/16/2022]
Abstract
The purpose of this study is to prove the lipid-regulating effects of neohesperidin (NHP) and explore the potential mechanisms related to fibroblast growth factor 21 (FGF21) and AMP-activated protein kinase (AMPK). Free fatty acids (FFAs)-induced lipid-accumulated HepG2 cells, acutely egg yolk-induced dyslipidemia and chronically diet-induced obese (DIO) model mice were treated with NHP. Biochemical analyses were carried out to determine the lipid profiles. Western blotting and real-time PCR were employed to analyze FGF21, AMPK and the related proteins or mRNA expressions. Body weight and food intake were measured in DIO mice. siRNA or inhibitors of FGF21 or AMPK were utilized in further study. NHP showed potent hypolipidemic effect in HepG2 cells loaded with FFAs and reversed the pathological changes of lipid in the acute or chronic dyslipidemia mouse model. It obviously improved the lipid profiles in plasma, liver and gastrocnemius muscles in DIO mice, and led to a significant body weight loss. Simultaneously, FGF21 protein expression or secretion, and AMPK/sirtuin type 1 (SIRT1)/peroxisome proliferator-activated receptor gamma coactivator 1α (PGC-1α) axis or related molecules, was improved by NHP in HepG2 cells and/or DIO mice. Furthermore, the siRNA or inhibitor targeting FGF21 or AMPK rejected the triglyceride-lowering effect of NHP. In conclusion, NHP regulates lipid metabolism in vivo and in vitro via FGF21 and AMPK/SIRT1/PGC-1α signaling axis.
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Affiliation(s)
- Haoshu Wu
- Institute of Pharmacology and Toxicology and Biochemical Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
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8
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Pang L, You L, Ji C, Shi C, Chen L, Yang L, Huang F, Zhou Y, Zhang J, Chen X, Guo X. miR-1275 inhibits adipogenesis via ELK1 and its expression decreases in obese subjects. J Mol Endocrinol 2016; 57:33-43. [PMID: 27154547 DOI: 10.1530/jme-16-0007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 04/05/2016] [Indexed: 11/08/2022]
Abstract
Excessive adipocyte differentiation and proliferation are closely associated with the onset of obesity, which has been partially linked to microRNA expression. In previous studies, using miRNA microarray screening, we found that miR-1275 was significantly decreased in human mature adipocytes. In this study, we examined the role of miR-1275 in adipogenesis. Our results indicated that miR-1275 can inhibit the differentiation of human visceral preadipocytes without affecting their proliferation. ELK1, an E-twenty-six (ETS)-domain transcription factor associated with adipocyte differentiation, was strongly suppressed by miR-1275 in human visceral adipocytes. This was demonstrated via a dual-luciferase reporter assay and pointed to ELK1 as a direct target of miR-1275. Furthermore, miR-1275 expression was significantly diminished in the visceral adipose tissue of overweight and obese human subjects accompanied by a negative correlation with body mass index. These results suggest that miR-1275 could play a future role in the management of obesity, as a novel therapeutic target or biomarker.
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Affiliation(s)
- Lingxia Pang
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China Institute of PediatricsNanjing Medical University, Nanjing, China
| | - Lianghui You
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Chenbo Ji
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Chunmei Shi
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Ling Chen
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Lei Yang
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China Institute of PediatricsNanjing Medical University, Nanjing, China
| | - Fangyan Huang
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China Institute of PediatricsNanjing Medical University, Nanjing, China
| | - Yahui Zhou
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China Institute of PediatricsNanjing Medical University, Nanjing, China
| | - Jun Zhang
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Xiaohui Chen
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Xirong Guo
- Department of Children Health CareNanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, China Institute of PediatricsNanjing Medical University, Nanjing, China
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9
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Mao S, Ren X, Zhang J. The emerging role of fibroblast growth factor 21 in diabetic nephropathy. J Recept Signal Transduct Res 2016; 36:586-592. [PMID: 26915669 DOI: 10.3109/10799893.2016.1147582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Diabetic nephropathy (DN), an important cause of end-stage renal diseases, brings about great social and economic burden. Due to the variable pathological changes and clinical course, the prognosis of DN is very difficult to predict. DN is also usually associated with enhanced genomic damage and cellular injury. Fibroblast growth factor 21 (FGF21), a nutritionally regulated hormone secreted mainly by the liver, plays a critical role in metabolism. Administration of FGF21 decreases blood glucose, triglyceride, and cholesterol levels, and improves insulin sensitivity, which is closely associated with the development and progression of glomerular diseases. In addition, FGF21 level was associated with renal function. However, the precise role of FGF21 in DN remains unclear. This review will give a comprehensive understanding of the underlying role of FGF21 and its possible interaction with other molecules in DN.
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Affiliation(s)
- Song Mao
- a Department of Pediatrics , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China and
| | - Xianguo Ren
- b Department of Pediatrics , Nanjing Jinling Hospital , Nanjing , China
| | - Jianhua Zhang
- a Department of Pediatrics , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China and
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10
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Abstract
Fibroblast growth factor 21 (FGF21) is a peptide hormone that is synthesized by several organs and regulates energy homeostasis. Excitement surrounding this relatively recently identified hormone is based on the documented metabolic beneficial effects of FGF21, which include weight loss and improved glycemia. The biology of FGF21 is intrinsically complicated owing to its diverse metabolic functions in multiple target organs and its ability to act as an autocrine, paracrine, and endocrine factor. In the liver, FGF21 plays an important role in the regulation of fatty acid oxidation both in the fasted state and in mice consuming a high-fat, low-carbohydrate ketogenic diet. FGF21 also regulates fatty acid metabolism in mice consuming a diet that promotes hepatic lipotoxicity. In white adipose tissue (WAT), FGF21 regulates aspects of glucose metabolism, and in susceptible WAT depots, it can cause browning. This peptide is highly expressed in the pancreas, where it appears to play an anti-inflammatory role in experimental pancreatitis. It also has an anti-inflammatory role in cardiac muscle. Although typically not expressed in skeletal muscle, FGF21 is induced in situations of muscle stress, particularly mitochondrial myopathies. FGF21 has been proposed as a novel therapeutic for metabolic complications such as diabetes and fatty liver disease. This review aims to interpret and delineate the ever-expanding complexity of FGF21 physiology.
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Affiliation(s)
- Ffolliott Martin Fisher
- Department of Medicine, Harvard Medical School, and Division of Endocrinology, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215;
| | - Eleftheria Maratos-Flier
- Department of Medicine, Harvard Medical School, and Division of Endocrinology, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215;
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