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Sinha RA, Yen PM. Metabolic Messengers: Thyroid Hormones. Nat Metab 2024; 6:639-650. [PMID: 38671149 PMCID: PMC7615975 DOI: 10.1038/s42255-024-00986-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 01/15/2024] [Indexed: 04/28/2024]
Abstract
Thyroid hormones (THs) are key hormones that regulate development and metabolism in mammals. In man, the major target tissues for TH action are the brain, liver, muscle, heart, and adipose tissue. Defects in TH synthesis, transport, metabolism, and nuclear action have been associated with genetic and endocrine diseases in man. Over the past few years, there has been renewed interest in TH action and the therapeutic potential of THs and thyromimetics to treat several metabolic disorders such as hypercholesterolemia, dyslipidaemia, non-alcoholic fatty liver disease (NAFLD), and TH transporter defects. Recent advances in the development of tissue and TH receptor isoform-targeted thyromimetics have kindled new hope for translating our fundamental understanding of TH action into an effective therapy. This review provides a concise overview of the historical development of our understanding of TH action, its physiological and pathophysiological effects on metabolism, and future therapeutic applications to treat metabolic dysfunction.
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Affiliation(s)
- Rohit A Sinha
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India.
| | - Paul M Yen
- Laboratory of Hormonal Regulation, Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore, Singapore.
- Div. Endocrinology, Metabolism, and Nutrition, Department of Medicine, Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA.
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Wang X, Li M, Diao K, Wang Y, Chen H, Zhao Z, Li Y, Jia X, Wang H, Zheng F, Xia Z, Han L, Zhang M. Deferoxamine attenuates visual impairment in retinal ischemia‒reperfusion via inhibiting ferroptosis. Sci Rep 2023; 13:20145. [PMID: 37978208 PMCID: PMC10656451 DOI: 10.1038/s41598-023-46104-0] [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: 05/06/2023] [Accepted: 10/27/2023] [Indexed: 11/19/2023] Open
Abstract
Retinal ischemia‒reperfusion (I/R) injury can cause significant damage to human retinal neurons, greatly compromising their functions. Existing interventions have been proven to have little effect. Ferroptosis is a newly discovered type of programmed cell death that has been found to be involved in the process of ischemia‒reperfusion in multiple organs throughout the body. Studies have shown that it is also present in retinal ischemia‒reperfusion injury. A rat model of retinal ischemia‒reperfusion injury was constructed and treated with deferoxamine. In this study, we found the accumulation of Fe2+, reactive oxygen species (ROS), malondialdehyde (MDA), and the consumption of glutathione (GSH) via ELISA testing; increased expression of transferrin; and decreased expression of ferritin, SLC7A11, and GPX4 via Western blotting (WB) and real-time PCR testing. Structural signs of ferroptosis (mitochondrial shrinkage) were observed across multiple cell types, including retinal ganglion cells (RGCs), photoreceptor cells, and pigment epithelial cells. Changes in visual function were detected by F-VEP and ERG. The results showed that iron and oxidative stress were increased in the retinal ischemia‒reperfusion injury model, resulting in ferroptosis and tissue damage. Deferoxamine protects the structural and functional soundness of the retina by inhibiting ferroptosis through the simultaneous inhibition of hemochromatosis, the initiation of transferrin, and the degradation of ferritin and activating the antioxidant capacity of the System Xc-GSH-GPX4 pathway.
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Affiliation(s)
- Xiaoxuan Wang
- Department of Ophthalmology, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Mingran Li
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Ke Diao
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Yan Wang
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Hong Chen
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Ziqi Zhao
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Yuan Li
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Xin Jia
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Hao Wang
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Fangyuan Zheng
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Zihan Xia
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Longhui Han
- Department of Ophthalmology, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China
| | - Minglian Zhang
- Department of Ophthalmology, Hebei Medical University, Shijiazhuang, 050017, Hebei, China.
- Hebei Eye Hospital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Clinical Research Center for Eye Diseases, Xingtai, 054000, Hebei, China.
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3
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Buyl K, Vrints M, Fernando R, Desmae T, Van Eeckhoutte T, Jans M, Van Der Schueren J, Boeckmans J, Rodrigues RM, De Boe V, Rogiers V, De Kock J, Beirinckx F, Vanhaecke T. Human skin stem cell-derived hepatic cells as in vitro drug discovery model for insulin-driven de novo lipogenesis. Eur J Pharmacol 2023; 957:175989. [PMID: 37572939 DOI: 10.1016/j.ejphar.2023.175989] [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: 03/29/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/14/2023]
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD), formerly known as non-alcoholic fatty liver disease (NAFLD), is characterized by intrahepatic triglyceride accumulation and can progress to metabolic dysfunction-associated steatohepatitis (MASH) and liver fibrosis. Hepatic de novo lipogenesis (DNL), activated by glucose and insulin, is a central pathway contributing to early-stage development of MASLD. The emerging global prevalence of MASLD highlights the urgent need for pharmaceutical intervention to combat this health threat. However, the identification of novel drugs that could inhibit hepatic DNL is hampered by a lack of reliable, insulin-sensitive, human, in vitro, hepatic models. Here, we report human skin stem cell-derived hepatic cells (hSKP-HPC) as a unique in vitro model to study insulin-driven DNL (iDNL), evidenced by both gene expression and lipid accumulation readouts. Insulin-sensitive hSKP-HPC showed increased sterol regulatory element-binding protein 1c (SREBP-1c) expression, a key transcription factor for DNL. Furthermore, this physiologically relevant in vitro human steatosis model allowed both inhibition and activation of the iDNL pathway using reference inhibitors and activators, respectively. Optimisation of the lipid accumulation assay to a high-throughput, 384-well format enabled the screening of a library of annotated compounds, delivering new insights on key players in the iDNL pathway and MASLD pathophysiology. Together, these results establish the value of the hSKP-HPC model in preclinical development of antisteatotic drugs to combat MASLD.
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Affiliation(s)
- Karolien Buyl
- Department of in Vitro Toxicology and Dermato-Cosmetology (IVTD), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium.
| | - Martine Vrints
- Galapagos NV, Industriepark Mechelen Noord, Generaal De Wittelaan L11 A3, B-2880, Mechelen, Belgium
| | - Ruani Fernando
- Department of in Vitro Toxicology and Dermato-Cosmetology (IVTD), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium
| | - Terry Desmae
- Department of in Vitro Toxicology and Dermato-Cosmetology (IVTD), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium
| | - Thomas Van Eeckhoutte
- Galapagos NV, Industriepark Mechelen Noord, Generaal De Wittelaan L11 A3, B-2880, Mechelen, Belgium
| | - Mia Jans
- Galapagos NV, Industriepark Mechelen Noord, Generaal De Wittelaan L11 A3, B-2880, Mechelen, Belgium
| | - Jan Van Der Schueren
- Galapagos NV, Industriepark Mechelen Noord, Generaal De Wittelaan L11 A3, B-2880, Mechelen, Belgium
| | - Joost Boeckmans
- Department of in Vitro Toxicology and Dermato-Cosmetology (IVTD), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium
| | - Robim M Rodrigues
- Department of in Vitro Toxicology and Dermato-Cosmetology (IVTD), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium
| | - Veerle De Boe
- Department of Urology, Universitair Ziekenhuis Brussel (UZ-Brussel), Laarbeeklaan 101, B-1090, Brussels, Belgium
| | - Vera Rogiers
- Department of in Vitro Toxicology and Dermato-Cosmetology (IVTD), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium
| | - Joery De Kock
- Department of in Vitro Toxicology and Dermato-Cosmetology (IVTD), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium
| | - Filip Beirinckx
- Galapagos NV, Industriepark Mechelen Noord, Generaal De Wittelaan L11 A3, B-2880, Mechelen, Belgium
| | - Tamara Vanhaecke
- Department of in Vitro Toxicology and Dermato-Cosmetology (IVTD), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium
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Demori I, Grasselli E. The Role of the Stress Response in Metabolic Dysfunction-Associated Fatty Liver Disease: A Psychoneuroendocrineimmunology-Based Perspective. Nutrients 2023; 15:nu15030795. [PMID: 36771500 PMCID: PMC9921904 DOI: 10.3390/nu15030795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/17/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
The novel term metabolic dysfunction-associated fatty liver disease (MAFLD), which has been proposed to describe the major cause of hepatic disease, pinpoints the coexistence of multiple metabolic disturbances and liver steatosis, giving rise to different phenotypic manifestations. Within the psychoneuroendocrineimmunological (PNEI) network that regulates body-mind interactions, the stress response plays a pervasive role by affecting metabolic, hormonal, immune, and behavioral balance. In this perspective, we focus on chronic psychosocial stress and high levels of cortisol to highlight their role in MAFLD pathogenesis and worsening. From a PNEI perspective, considering the stress response as a therapeutic target in MAFLD allows for simultaneously influencing multiple pathways in the development of MAFLD, including dysmetabolism, inflammation, feeding behaviors, gut-liver axis, and dysbiosis, with the hope of better outcomes.
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Shatta MA, El-Derany MO, Gibriel AA, El-Mesallamy HO. Rhamnetin ameliorates non-alcoholic steatosis and hepatocellular carcinoma in vitro. Mol Cell Biochem 2022:10.1007/s11010-022-04619-6. [DOI: 10.1007/s11010-022-04619-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 11/23/2022] [Indexed: 12/14/2022]
Abstract
AbstractNon-alcoholic fatty liver (NAFLD) is a widespread disease with various complications including Non-alcoholic steatohepatitis (NASH) that could lead to cirrhosis and ultimately hepatocellular carcinoma (HCC). Up till now there is no FDA approved drug for treatment of NAFLD. Flavonoids such as Rhamnetin (Rhm) have been ascribed effective anti-inflammatory and anti-oxidative properties. Thus, Rhm as a potent flavonoid could target multiple pathological cascades causing NAFLD to prevent its progression into HCC. NAFLD is a multifactorial disease and its pathophysiology is complex and is currently challenged by the ‘Multiple-hit hypothesis’ that includes wider range of comorbidities rather than previously established theory of ‘Two-hit hypothesis’. Herein, we aimed at establishing reliable in vitro NASH models using different mixtures of variable ratios and concentrations of oleic acid (OA) and palmitic acid (PA) combinations using HepG2 cell lines. Moreover, we compared those models in the context of oil red staining, triglyceride levels and their altered downstream molecular signatures for genes involved in de novo lipogenesis, inflammation, oxidative stress and apoptotic machineries as well. Lastly, the effect of Rhm on NASH and HCC models was deeply investigated. Over the 10 NASH models tested, PA 500 µM concentration was the best model to mimic the molecular events of steatosis induced NAFLD. Rhm successfully ameliorated the dysregulated molecular events caused by the PA-induced NASH. Additionally, Rhm regulated inflammatory and oxidative machinery in the HepG2 cancerous cell lines. In conclusion, PA 500 µM concentration is considered an effective in vitro model to mimic NASH. Rhm could be used as a promising therapeutic modality against both NASH and HCC pathogenesis.
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Demori I, El Rashed Z, De Negri Atanasio G, Parodi A, Millo E, Salis A, Costa A, Rosa G, Zanotti Russo M, Salvidio S, Cortese K, Grasselli E. First Evidence of Anti-Steatotic Action of Macrotympanain A1, an Amphibian Skin Peptide from Odorrana macrotympana. Molecules 2022; 27:7417. [PMID: 36364243 PMCID: PMC9656375 DOI: 10.3390/molecules27217417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/10/2022] [Accepted: 10/27/2022] [Indexed: 11/26/2023] Open
Abstract
Many different amphibian skin peptides have been characterized and proven to exert various biological actions, such as wound-healing, immunomodulatory, anti-oxidant, anti-inflammatory and anti-diabetic effects. In this work, the possible anti-steatotic effect of macrotympanain A1 (MA1) (FLPGLECVW), a skin peptide isolated from the Chinese odorous frog Odorrana macrotympana, was investigated. We used a well-established in vitro model of hepatic steatosis, consisting of lipid-loaded rat hepatoma FaO cells. In this model, a 24 h treatment with 10 µg/mL MA1 exerted a significant anti-steatotic action, being able to reduce intracellular triglyceride content. Accordingly, the number and diameter of cytosolic lipid droplets (LDs) were reduced by peptide treatment. The expression of key genes of hepatic lipid metabolism, such as PPARs and PLINs, was measured by real-time qPCR. MA1 counteracted the fatty acid-induced upregulation of PPARγ expression and increased PLIN3 expression, suggesting a role in promoting lipophagy. The present data demonstrate for the first time a direct anti-steatotic effect of a peptide from amphibian skin secretion and pave the way to further studies on the use of amphibian peptides for beneficial actions against metabolic diseases.
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Affiliation(s)
- Ilaria Demori
- Department of Earth, Environmental, and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56122 Pisa, Italy
| | - Zeinab El Rashed
- Department of Earth, Environmental, and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
| | - Giulia De Negri Atanasio
- Department of Earth, Environmental, and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
| | - Alice Parodi
- Department of Experimental Medicine (DIMES), Section of Biochemistry, University of Genoa, Viale Benedetto XV 1, 16132 Genoa, Italy
| | - Enrico Millo
- Department of Experimental Medicine (DIMES), Section of Biochemistry, University of Genoa, Viale Benedetto XV 1, 16132 Genoa, Italy
| | - Annalisa Salis
- Department of Experimental Medicine (DIMES), Section of Biochemistry, University of Genoa, Viale Benedetto XV 1, 16132 Genoa, Italy
| | - Andrea Costa
- Department of Earth, Environmental, and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
| | - Giacomo Rosa
- Department of Earth, Environmental, and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
| | | | - Sebastiano Salvidio
- Department of Earth, Environmental, and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
| | - Katia Cortese
- Department of Experimental Medicine (DIMES), Cellular Electron Microscopy Laboratory, University of Genoa, Via Antonio de Toni 14, 16132 Genoa, Italy
| | - Elena Grasselli
- Department of Earth, Environmental, and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56122 Pisa, Italy
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Zhang L, Dai X, Wang L, Cai J, Shen J, Shen Y, Li X, Zhao Y. Iron overload accelerated lipid metabolism disorder and liver injury in rats with non-alcoholic fatty liver disease. Front Nutr 2022; 9:961892. [PMID: 36304234 PMCID: PMC9593083 DOI: 10.3389/fnut.2022.961892] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 09/08/2022] [Indexed: 12/04/2022] Open
Abstract
Background/aims Non-alcoholic fatty liver disease (NAFLD) is one of the most common liver diseases worldwide. Iron overload has been implicated in chronic non-communicable liver diseases, but its relationship with NAFLD remains unclear. This study aimed to investigate the underlying roles of iron overload in the development of NAFLD. Methods Male Sprague Dawley rats were fed with a high-fat diet (HFD) and/or iron for 8, 12, and 20 weeks. Some rats fed with HFD plus iron also received intraperitoneal injection of deferoxamine (DFO) for 8 weeks. Liver steatosis, lipid metabolism and injury were evaluated. Results A NAFLD model, including typical liver steatosis, was established by feeding rats with a HFD, while iron overload alone is not enough to induce severe NAFL. Compared with rats fed a HFD, excess iron further increased lipid accumulation, serum levels of lipids, enzymes of liver function, and expression levels of CD36 and FAS in rat liver. In addition, iron overload decreased the activities of antioxidative enzymes in liver compared with HFD rats. The levels of CPT1 and the ratios of p-ACC/ACC were also decreased by iron overload. DFO effectively reversed the abnormal lipid metabolism and liver damage induced by a high-fat, high-iron diet. Conclusion A HFD plus iron overload might synergistically aggravate lipid metabolism disorders, liver injury, and oxidative damage, compared with a HFD alone. DFO might help to alleviate lipid metabolism dysfunction and improve the pathogenesis of NAFLD.
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Abdel-Rahman R. Non-alcoholic fatty liver disease: Epidemiology, pathophysiology and an update on the therapeutic approaches. Asian Pac J Trop Biomed 2022. [DOI: 10.4103/2221-1691.338919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Rashed ZE, Grasselli E, Khalifeh H, Canesi L, Demori I. Brown-Algae Polysaccharides as Active Constituents against Nonalcoholic Fatty Liver Disease. PLANTA MEDICA 2022; 88:9-19. [PMID: 33142346 DOI: 10.1055/a-1273-3159] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nonalcoholic fatty liver disease is a metabolic disorder characterized by lipid overloading in hepatocytes that can progress pathogenically and even end in hepatocellular carcinoma. Nonalcoholic fatty liver disease pharmacological treatment is still limited by unwanted side effects, whereas the use of food components with therapeutic potential is advisable. The culinary use of marine algae is traditional for some populations and reviving worldwide, with promising health outcomes due to the large number of bioactive compounds found in seaweeds. The present review focuses on brown-algae polysaccharides, particularly fucoidan, alginate, and laminarin, and summarizes the experimental evidence of their potential effects against nonalcoholic fatty liver disease onset and progression. In vitro and in vivo studies demonstrate that brown-algae polysaccharides exert beneficial actions on satiety feeling, caloric intake, fat absorption, and modulation of the gut microbiota, which could account for indirect effects on energy and lipid homeostasis, thus diminishing the fat overload in the liver. Specific effects against nonalcoholic fatty liver disease pathogenesis and worsening are also described and sustained by the antioxidant, anti-inflammatory, and antisteatotic properties of brown-algae polysaccharides. Further studies are required to clarify the mechanism of action of brown-algae polysaccharides on liver cells, to determine the composition and bioavailability of brown-algae polysaccharides present in different algal sources and to probe the clinical availability of these compounds in the form of algal foods, food supplements, and regulated therapeutics.
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Affiliation(s)
- Zeinab El Rashed
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, Genoa, Italy
- Rammal Rammal Laboratory (ATAC group), Faculty of Sciences I, Lebanese University, Beirut, Lebanon
| | - Elena Grasselli
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, Genoa, Italy
| | - Hala Khalifeh
- Rammal Rammal Laboratory (ATAC group), Faculty of Sciences I, Lebanese University, Beirut, Lebanon
| | - Laura Canesi
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, Genoa, Italy
| | - Ilaria Demori
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, Genoa, Italy
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El Rashed Z, Lupidi G, Grasselli E, Canesi L, Khalifeh H, Demori I. Antioxidant and Antisteatotic Activities of Fucoidan Fractions from Marine and Terrestrial Sources. Molecules 2021; 26:4467. [PMID: 34361619 PMCID: PMC8347863 DOI: 10.3390/molecules26154467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/19/2021] [Accepted: 07/22/2021] [Indexed: 12/21/2022] Open
Abstract
Fucoidan is a fucose-rich sulfated polysaccharide typically found in the cell wall of marine algae but also recently isolated from terrestrial sources. Due to a variety of biological activities, including antioxidant properties, fucoidan exhibits an attractive therapeutic potential against a wide array of metabolic diseases associated with oxidative stress. We used FTIR, 1H NMR and 13C NMR spectroscopy to investigate the structural features of a fucoidan fraction extracted from the brown alga Cystoseira compressa (CYS). The antioxidant potential of CYS was measured by DPPH, ABTS and FRAP assays, which revealed a radical scavenging capacity that was confirmed in in vitro cellular models of hepatic and endothelial cells. The same antioxidant effects were observed for another fucoidan fraction previously identified in the terrestrial tree Eucalyptus globulus (EUC). Moreover, in hepatic cells, CYS and EUC exhibited a significant antisteatotic action, being able to reduce intracellular triglyceride content through the regulation of key genes of hepatic lipid metabolism. EUC exerted stronger antioxidant and antisteatotic effects as compared to CYS, suggesting that both marine and terrestrial sources should be considered for fucoidan extraction and therapeutic applications.
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Affiliation(s)
- Zeinab El Rashed
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, 16132 Genoa, Italy; (Z.E.R.); (E.G.); (L.C.)
- Rammal Rammal Laboratory (ATAC Group), Faculty of Sciences I, Lebanese University, Beirut 1003, Lebanon;
| | - Giulio Lupidi
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy;
| | - Elena Grasselli
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, 16132 Genoa, Italy; (Z.E.R.); (E.G.); (L.C.)
| | - Laura Canesi
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, 16132 Genoa, Italy; (Z.E.R.); (E.G.); (L.C.)
| | - Hala Khalifeh
- Rammal Rammal Laboratory (ATAC Group), Faculty of Sciences I, Lebanese University, Beirut 1003, Lebanon;
| | - Ilaria Demori
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, 16132 Genoa, Italy; (Z.E.R.); (E.G.); (L.C.)
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El Rashed Z, Lupidi G, Kanaan H, Grasselli E, Canesi L, Khalifeh H, Demori I. Antioxidant and Antisteatotic Activities of a New Fucoidan Extracted from Ferula hermonis Roots Harvested on Lebanese Mountains. Molecules 2021; 26:1161. [PMID: 33671715 PMCID: PMC7926425 DOI: 10.3390/molecules26041161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/14/2021] [Accepted: 02/15/2021] [Indexed: 12/20/2022] Open
Abstract
Fucoidan is a fucose-rich sulfated polysaccharide with attractive therapeutic potential due to a variety of biological activities, including antioxidant action. Fucoidan is typically found in the cell wall of marine brown algae, but extra-algal sources have also been discovered. In the present work, for the first time we extracted a water soluble fucoidan fraction from the roots of the terrestrial shrub Ferula hermonis. This fucoidan fraction was termed FUFe, and contained fucose, glucose, sulfate, smaller amounts of monosaccharides such as galactose and mannose, and a minor quantity of proteins. FUFe structural features were investigated by FTIR, 1H NMR and 13C NMR spectroscopy. The antioxidant property of FUFe was measured by DPPH, ABTS and FRAP assays, which revealed a high radical scavenging capacity that was confirmed in in vitro cellular models. In hepatic and endothelial cells, 50 μg/mL FUFe could reduce ROS production induced by intracellular lipid accumulation. Moreover, in hepatic cells FUFe exhibited a significant antisteatotic action, being able to reduce intracellular triglyceride content and to regulate the expression of key genes of hepatic lipid metabolism. Altogether, our results candidate FUFe as a possible bioactive compound against fatty liver disease and related vascular damage.
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Affiliation(s)
- Zeinab El Rashed
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, 16132 Genoa, Italy; (Z.E.R.); (E.G.); (L.C.)
- Rammal Rammal Laboratory (ATAC Group), Faculty of Sciences I, Lebanese University, 1003 Beirut, Lebanon;
| | - Giulio Lupidi
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy;
| | - Hussein Kanaan
- Laboratory of Chemical Synthesis and Extraction of Polysaccharides from Seaweed, Faculty of Pharmacy, Lebanese University, 1003 Beirut, Lebanon;
| | - Elena Grasselli
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, 16132 Genoa, Italy; (Z.E.R.); (E.G.); (L.C.)
| | - Laura Canesi
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, 16132 Genoa, Italy; (Z.E.R.); (E.G.); (L.C.)
| | - Hala Khalifeh
- Rammal Rammal Laboratory (ATAC Group), Faculty of Sciences I, Lebanese University, 1003 Beirut, Lebanon;
| | - Ilaria Demori
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, 16132 Genoa, Italy; (Z.E.R.); (E.G.); (L.C.)
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12
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Lambruschini C, Demori I, El Rashed Z, Rovegno L, Canessa E, Cortese K, Grasselli E, Moni L. Synthesis, Photoisomerization, Antioxidant Activity, and Lipid-Lowering Effect of Ferulic Acid and Feruloyl Amides. Molecules 2020; 26:molecules26010089. [PMID: 33379170 PMCID: PMC7794914 DOI: 10.3390/molecules26010089] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 01/04/2023] Open
Abstract
The Ugi four-component reaction employing naturally occurred ferulic acid (FA) is proposed as a convenient method to synthesize feruloyl tertiary amides. Applying this strategy, a peptoid-like derivative of ferulic acid (FEF77) containing 2 additional hydroxy-substituted aryl groups, has been synthesized. The influence of the configuration of the double bond of ferulic acid and feruloyl amide on the antioxidant activity has been investigated thanks to light-mediated isomerization studies. At the cellular level, both FA, trans and cis isomers of FEF77 were able to protect human endothelial cord vein (HECV) cells from the oxidative damage induced by exposure to hydrogen peroxide, as measured by cell viability and ROS production assays. Moreover, in steatotic FaO rat hepatoma cells, an in vitro model resembling non-alcoholic fatty liver disease (NAFLD), the molecules exhibited a lipid-lowering effect, which, along with the antioxidant properties, points to consider feruloyl amides for further investigations in a therapeutic perspective.
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Affiliation(s)
- Chiara Lambruschini
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146 Genova, Italy;
| | - Ilaria Demori
- Department of Earth, Environment and Life Science, University of Genoa, Corso Europa 26, 16132 Genova, Italy; (I.D.); (Z.E.R.); (L.R.)
| | - Zeinab El Rashed
- Department of Earth, Environment and Life Science, University of Genoa, Corso Europa 26, 16132 Genova, Italy; (I.D.); (Z.E.R.); (L.R.)
- Rammal Rammal Laboratory (ATAC Group), Faculty of Sciences I, Lebanese University, Beirut 1003, Lebanon
| | - Leila Rovegno
- Department of Earth, Environment and Life Science, University of Genoa, Corso Europa 26, 16132 Genova, Italy; (I.D.); (Z.E.R.); (L.R.)
| | - Elena Canessa
- MICAMO Spin-Off Department of Earth Sciences, University of Genoa, Corso Europa 26, 16132 Genova, Italy;
| | - Katia Cortese
- DIMES, Department of Experimental Medicine, University of Genoa, Via Antonio de Toni 14, 16132 Genova, Italy;
| | - Elena Grasselli
- Department of Earth, Environment and Life Science, University of Genoa, Corso Europa 26, 16132 Genova, Italy; (I.D.); (Z.E.R.); (L.R.)
- Correspondence: (E.G.); (L.M.); Tel.: +39-010-353-38257 (E.G. & L.M.)
| | - Lisa Moni
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146 Genova, Italy;
- Correspondence: (E.G.); (L.M.); Tel.: +39-010-353-38257 (E.G. & L.M.)
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13
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Baldini F, Fabbri R, Eberhagen C, Voci A, Portincasa P, Zischka H, Vergani L. Adipocyte hypertrophy parallels alterations of mitochondrial status in a cell model for adipose tissue dysfunction in obesity. Life Sci 2020; 265:118812. [PMID: 33278396 DOI: 10.1016/j.lfs.2020.118812] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/16/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022]
Abstract
AIMS Adipocyte hypertrophy is the main cause of obesity. A deeper understanding of the molecular mechanisms regulating adipocyte dysfunction may help to plan strategies to treat/prevent obesity and its metabolic complications. Here, we investigated in vitro the molecular alterations associated with early adipocyte hypertrophy, focusing on mitochondrial dysfunction. MAIN METHODS As model of adipocyte hypertrophy, we employed 3T3-L1 preadipocytes firstly differentiated into mature adipocytes, then cultured with long-chain fatty acids. As a function of differentiation and hypertrophy, we assessed triglyceride content, lipid droplet size, radical homeostasis by spectrophotometry and microscopy, as well as the expression of PPARγ, adiponectin and metallothioneins. Mitochondrial status was investigated by electron microscopy, oxygraph 2 k (O2K) high-resolution respirometry, fluorimetry and western blot. KEY FINDINGS Compared to mature adipocytes, hypertrophic adipocytes showed increased triglyceride accumulation and lipid peroxidation, larger or unique lipid droplet, up-regulated expression of PPARγ, adiponectin and metallothioneins. At mitochondrial level, early-hypertrophic adipocytes exhibited: (i) impaired mitochondrial oxygen consumption with parallel reduction in the mitochondrial complexes; (ii) no changes in citrate synthase and HSP60 expression, and in the inner mitochondrial membrane polarization; (iii) no stimulation of mitochondrial fatty acid oxidation. Our findings indicate that the content, integrity, and catabolic activity of mitochondria were rather unchanged in early hypertrophic adipocytes, while oxygen consumption and oxidant production were altered. SIGNIFICANCE In the model of early adipocyte hypertrophy exacerbated oxidative stress and impaired mitochondrial respiration were observed, likely depending on reduction in the mitochondrial complexes, without changes in mitochondrial mass and integrity.
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Affiliation(s)
- Francesca Baldini
- Department of Experimental Medicine (DIMES), University of Genova, Genova, Italy
| | - Rita Fabbri
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, Italy
| | - Carola Eberhagen
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Adriana Voci
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, Italy
| | - Piero Portincasa
- Division of Internal Medicine, Department of Biomedical Sciences and Human Oncology, University School of Medicine, 70124 Bari, Italy
| | - Hans Zischka
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany; Institute of Toxicology and Environmental Hygiene, Technical University of Munich, School of Medicine, Munich, Germany
| | - Laura Vergani
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, Italy.
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14
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Su RC, Lad A, Breidenbach JD, Kleinhenz AL, Modyanov N, Malhotra D, Haller ST, Kennedy DJ. Assessment of diagnostic biomarkers of liver injury in the setting of microcystin-LR (MC-LR) hepatotoxicity. CHEMOSPHERE 2020; 257:127111. [PMID: 32485513 DOI: 10.1016/j.chemosphere.2020.127111] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/11/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
Microcystin-leucine arginine (MC-LR) is a potent liver toxin produced by freshwater cyanobacteria, also known as blue-green algae. While harmful algal blooms are increasing in frequency and severity worldwide, there is still no established method for the diagnosis and assessment of MC-LR induced liver damage. The guidelines for MC-LR safe exposure limits have been previously established based on healthy animal studies, however we have previously demonstrated that pre-existing non-alcoholic fatty liver disease (NAFLD) increases susceptiblity to the hepatotoxic effects of MC-LR. In this study, we sought to investigate the suitability of clinically used biomarkers of liver injury, specifically alanine aminotransferase (ALT) and alkaline phosphatase (ALP), as potential diagnostic tools for liver damage induced by chronic low dose administration of MC-LR in the setting of pre-existing NAFLD. In our Leprdb/J mouse model of NAFLD, we found that while MC-LR induced significant histopathologic damage in the setting of NAFLD, gene expression of ALT and ALP failed to increase with MC-LR exposure. Serum ALT and ALP also failed to increase with MC-LR exposure, except for a moderate increase in ALP with the highest dose of MC-LR used (100 μg/kg). In HepG2 human liver epithelial cells, we observed that increasing MC-LR exposure levels do not lead to an increase in ALT or ALP gene expression, intracellular enzyme activity, or extracellular activity, despite a significant increase in MC-LR induced cytotoxicity. These findings demonstrate that ALT and ALP may be unsuitable as diagnostic biomarkers for MC-LR induced liver damage.
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Affiliation(s)
- Robin C Su
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA.
| | - Apurva Lad
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA.
| | - Joshua D Breidenbach
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA.
| | - Andrew L Kleinhenz
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA.
| | - Nikolai Modyanov
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA; Department of Physiology and Pharmacology, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA.
| | - Deepak Malhotra
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA.
| | - Steven T Haller
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA; Department of Medical Microbiology and Immunology, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA.
| | - David J Kennedy
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA; Department of Medical Microbiology and Immunology, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA.
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15
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Giammanco M, Di Liegro CM, Schiera G, Di Liegro I. Genomic and Non-Genomic Mechanisms of Action of Thyroid Hormones and Their Catabolite 3,5-Diiodo-L-Thyronine in Mammals. Int J Mol Sci 2020; 21:ijms21114140. [PMID: 32532017 PMCID: PMC7312989 DOI: 10.3390/ijms21114140] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 02/06/2023] Open
Abstract
Since the realization that the cellular homologs of a gene found in the retrovirus that contributes to erythroblastosis in birds (v-erbA), i.e. the proto-oncogene c-erbA encodes the nuclear receptors for thyroid hormones (THs), most of the interest for THs focalized on their ability to control gene transcription. It was found, indeed, that, by regulating gene expression in many tissues, these hormones could mediate critical events both in development and in adult organisms. Among their effects, much attention was given to their ability to increase energy expenditure, and they were early proposed as anti-obesity drugs. However, their clinical use has been strongly challenged by the concomitant onset of toxic effects, especially on the heart. Notably, it has been clearly demonstrated that, besides their direct action on transcription (genomic effects), THs also have non-genomic effects, mediated by cell membrane and/or mitochondrial binding sites, and sometimes triggered by their endogenous catabolites. Among these latter molecules, 3,5-diiodo-L-thyronine (3,5-T2) has been attracting increasing interest because some of its metabolic effects are similar to those induced by T3, but it seems to be safer. The main target of 3,5-T2 appears to be the mitochondria, and it has been hypothesized that, by acting mainly on mitochondrial function and oxidative stress, 3,5-T2 might prevent and revert tissue damages and hepatic steatosis induced by a hyper-lipid diet, while concomitantly reducing the circulating levels of low density lipoproteins (LDL) and triglycerides. Besides a summary concerning general metabolism of THs, as well as their genomic and non-genomic effects, herein we will discuss resistance to THs and the possible mechanisms of action of 3,5-T2, also in relation to its possible clinical use as a drug.
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Affiliation(s)
- Marco Giammanco
- Department of Surgical, Oncological and Oral Sciences (Discipline Chirurgiche, Oncologiche e Stomatologiche), University of Palermo, 90127 Palermo, Italy;
| | - Carlo Maria Di Liegro
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF)), University of Palermo, 90128 Palermo, Italy; (C.M.D.L.); (G.S.)
| | - Gabriella Schiera
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF)), University of Palermo, 90128 Palermo, Italy; (C.M.D.L.); (G.S.)
| | - Italia Di Liegro
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (Dipartimento di Biomedicina, Neuroscienze e Diagnostica avanzata (Bi.N.D.)), University of Palermo, 90127 Palermo, Italy
- Correspondence: ; Tel.: +39-091-2389-7415 or +39-091-2389-7446
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16
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Okamoto T, Sugimoto S, Noda M, Yokooji T, Danshiitsoodol N, Higashikawa F, Sugiyama M. Interleukin-8 Release Inhibitors Generated by Fermentation of Artemisia princeps Pampanini Herb Extract With Lactobacillus plantarum SN13T. Front Microbiol 2020; 11:1159. [PMID: 32582099 PMCID: PMC7283739 DOI: 10.3389/fmicb.2020.01159] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/06/2020] [Indexed: 12/13/2022] Open
Abstract
Some glycosides, which are detected in water extracts from medicinal plants, have been reported to be degraded into their aglycones by incubating with some microorganisms producing β-glucosidase. We have shown that a plant-derived Lactobacillus plantarum SN13T harbors 11 open reading frames (ORFs) encoding the β-glucosidase enzyme and can grow vigorously in several herbal water extracts. In this study, we observed that the water extract from Artemisia princeps Pampanini (AP) fermented with the SN13T strain strongly inhibited the release of interleukin (IL)-8 from the HuH-7 cells, when compared to that without fermentation. Furthermore, we demonstrated that the SN13T strain produced at least two bioactive compounds from some compounds contained in AP extract. In addition, we determined that the two compounds were catechol and seco-tanapartholide C, which dose-dependently inhibited the release of IL-8. Because some sesquiterpene lactones are useful in pharmaceuticals, seco-tanapartholide C may be useful as an anti-inflammatory agent. This study suggests that the fermentation of medicinal herbs with Lb. plantarum SN13T is a significant technique to obtain bioactive compounds having therapeutic potential.
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Affiliation(s)
- Tomoko Okamoto
- Department of Probiotic Science for Preventive Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Department of Frontier Science for Pharmacotherapy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Sachiko Sugimoto
- Department of Pharmacognosy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masafumi Noda
- Department of Probiotic Science for Preventive Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoharu Yokooji
- Department of Frontier Science for Pharmacotherapy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Narandalai Danshiitsoodol
- Department of Probiotic Science for Preventive Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Fumiko Higashikawa
- Department of Probiotic Science for Preventive Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masanori Sugiyama
- Department of Probiotic Science for Preventive Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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17
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Su RC, Lad A, Breidenbach JD, Blomquist TM, Gunning WT, Dube P, Kleinhenz AL, Malhotra D, Haller ST, Kennedy DJ. Hyperglycemia induces key genetic and phenotypic changes in human liver epithelial HepG2 cells which parallel the Leprdb/J mouse model of non-alcoholic fatty liver disease (NAFLD). PLoS One 2019; 14:e0225604. [PMID: 31805072 PMCID: PMC6894821 DOI: 10.1371/journal.pone.0225604] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 11/07/2019] [Indexed: 12/29/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a growing global health concern. With a propensity to progress towards non-alcoholic steatohepatitis (NASH), cirrhosis, and hepatocellular carcinoma, NAFLD is an important link amongst a multitude of comorbidities including obesity, diabetes, and cardiovascular and kidney disease. As several in vivo models of hyperglycemia and NAFLD are employed to investigate the pathophysiology of this disease process, we aimed to characterize an in vitro model of hyperglycemia that was amenable to address molecular mechanisms and therapeutic targets at the cellular level. Utilizing hyperglycemic cell culturing conditions, we induced steatosis within a human hepatocyte cell line (HepG2 cells), as confirmed by electron microscopy. The deposition and accumulation of lipids within hyperglycemic HepG2 cells is significantly greater than in normoglycemic cells, as visualized and quantified by Nile red staining. Alanine aminotransferase (ALT) and alkaline phosphatase (ALP), diagnostic biomarkers for liver damage and disease, were found to be upregulated in hyperglycemic HepG2 cells as compared with normoglycemic cells. Suppression of CEACAM1, GLUT2, and PON1, and elevation of CD36, PCK1, and G6PK were also found to be characteristic in hyperglycemic HepG2 cells compared with normoglycemic cells, suggesting insulin resistance and NAFLD. These in vitro findings mirror the characteristic genetic and phenotypic profile seen in Leprdb/J mice, a well-established in vivo model of NAFLD. In conclusion, we characterize an in vitro model displaying several key genetic and phenotypic characteristics in common with NAFLD that may assist future studies in addressing the molecular mechanisms and therapeutic targets to combat this disease.
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Affiliation(s)
- Robin C. Su
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
| | - Apurva Lad
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
| | - Joshua D. Breidenbach
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
| | - Thomas M. Blomquist
- Department of Pathology, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
| | - William T. Gunning
- Department of Pathology, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
| | - Prabhatchandra Dube
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
| | - Andrew L. Kleinhenz
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
| | - Deepak Malhotra
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
| | - Steven T. Haller
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
- Department of Medical Microbiology and Immunology, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
- * E-mail: (DK); (SH)
| | - David J. Kennedy
- Department of Medicine, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
- Department of Medical Microbiology and Immunology, The University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States of America
- * E-mail: (DK); (SH)
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18
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Grasselli E, Baldini F, Vecchione G, Oliveira PJ, Sardão VA, Voci A, Portincasa P, Vergani L. Excess fructose and fatty acids trigger a model of non‑alcoholic fatty liver disease progression in vitro: Protective effect of the flavonoid silybin. Int J Mol Med 2019; 44:705-712. [PMID: 31173180 DOI: 10.3892/ijmm.2019.4234] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 05/07/2019] [Indexed: 11/05/2022] Open
Abstract
Overconsumption of fats and sugars is a major cause of development of non‑alcoholic fatty liver disease (NAFLD). The main objectives of the present study were to explore the pathways sustaining the interfering metabolic effects of excess fructose and fatty acids in hepatocytes, and to clarify the mechanisms through which the nutraceutical silybin rescues the functional and metabolic alterations that are associated with the NALFD progression. Cultured hepatocytes were exposed to fructose and fatty acids, alone or in combination, to induce different grades of steatosis in vitro. Cell viability, apoptosis, free radical production, lipid content, lipid peroxidation and activity of lipogenic enzymes were assessed by spectrophotometric assays. Oxygen consumption and mitochondrial respiration parameters were measured using a Seahorse analyzer. Expression of markers for liver steatosis and dysfunction were also evaluated by reverse transcription‑quantitative polymerase chain reaction. The data revealed that fructose and fatty acid combination in vitro had a positive interference on lipogenic pathways, leading to more severe steatosis and liver dysfunction, reduced cell viability, increased apoptosis, oxidative stress and mitochondrial respiration. Hepatic cell abnormalities were almost completely alleviated by silybin treatment. These findings suggest that silybin may serve as a novel and cost‑effective dietary supplement for treatment and/or prevention of hepatosteatosis associated with NAFLD progression.
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Affiliation(s)
- Elena Grasselli
- DISTAV‑Department of Earth, Environment and Life Sciences, University of Genova, I‑16132 Genova, Italy
| | - Francesca Baldini
- DISTAV‑Department of Earth, Environment and Life Sciences, University of Genova, I‑16132 Genova, Italy
| | - Giulia Vecchione
- DISTAV‑Department of Earth, Environment and Life Sciences, University of Genova, I‑16132 Genova, Italy
| | - Paulo J Oliveira
- CNC‑Center for Neuroscience and Cellular Biology, University of Coimbra, 3060‑197 Cantanhede, Portugal
| | - Vilma A Sardão
- CNC‑Center for Neuroscience and Cellular Biology, University of Coimbra, 3060‑197 Cantanhede, Portugal
| | - Adriana Voci
- DISTAV‑Department of Earth, Environment and Life Sciences, University of Genova, I‑16132 Genova, Italy
| | - Piero Portincasa
- Division of Internal Medicine 'A. Murri', Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, I‑70162 Bari, Italy
| | - Laura Vergani
- DISTAV‑Department of Earth, Environment and Life Sciences, University of Genova, I‑16132 Genova, Italy
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19
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Chen K, Ma J, Jia X, Ai W, Ma Z, Pan Q. Advancing the understanding of NAFLD to hepatocellular carcinoma development: From experimental models to humans. Biochim Biophys Acta Rev Cancer 2018; 1871:117-125. [PMID: 30528647 DOI: 10.1016/j.bbcan.2018.11.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/28/2018] [Accepted: 11/23/2018] [Indexed: 02/06/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) has recently been recognized as an important etiology contributing to the increased incidence of hepatocellular carcinoma (HCC). NAFLD, characterized by fat accumulation in the liver, is affecting at least one-third of the global population. The more aggressive form, nonalcoholic steatohepatitis (NASH), is characterized by hepatocyte necrosis and inflammation. The development of effective approaches for disease prevention and/or treatment heavily relies on deep understanding of the mechanisms underlying NAFLD to HCC development. However, this has been largely hampered by the lack of robust experimental models that recapitulate the full disease spectrum. This review will comprehensively describe the current in vitro and mouse models for studying NAFLD/NASH/HCC, and further emphasize their applications and possible future improvement for better understanding the molecular mechanisms involved in the cascade of NAFLD to HCC progression.
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Affiliation(s)
- Kan Chen
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China; Biomedical Research Center, Northwest Minzu University, Lanzhou, China; Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, The Netherlands
| | - Jianbo Ma
- Biomedical Research Center, Northwest Minzu University, Lanzhou, China; Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, The Netherlands
| | - Xiaoyuan Jia
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
| | - Wen Ai
- Department of Cardiology, Shenzhen Nanshan People's Hospital, China
| | - Zhongren Ma
- Biomedical Research Center, Northwest Minzu University, Lanzhou, China
| | - Qiuwei Pan
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China; Biomedical Research Center, Northwest Minzu University, Lanzhou, China; Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, The Netherlands.
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20
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Zhao W, Liu Z, Guo W, Luo K, Yang J, Gao W, Wu X, Chen X. A UPLC-MS/MS method for simultaneous quantification of pairs of oleanene- and ursane-type triterpenoid saponins and their major metabolites in mice plasma and its application to a comparative pharmacokinetic study. RSC Adv 2018; 8:8586-8595. [PMID: 35539862 PMCID: PMC9078533 DOI: 10.1039/c8ra00739j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 02/18/2018] [Indexed: 12/19/2022] Open
Abstract
Ilexhainanoside D (IhD) and Ilexsaponin A1 (IsA) are a pair of oleanene- and ursane-type triterpenoid saponins, which are also the main bioactive pharmaceutical ingredients of Ilex hainanensis Merr. with great potential to treat non-alcoholic fatty liver disease (NAFLD). The pharmacokinetics of four representative triterpenoids in mice were investigated in this study, which were IhD, IsA and their major metabolites 3β, 19α-dihydroxyolean-12-ene-24, 28-dioic acid (ID) and Ilexgenin A (IA). A sensitive and accurate UPLC-MS/MS method was developed and validated for the simultaneous quantitative determination of IhD, IsA, ID and IA in control and NAFLD mice plasma after oral administration of the total saponins of I. hainanensis (the contents of IhD and IsA were 41.6% and 54.4%, respectively). The results revealed that the pharmacokinetic behaviors could be changed in NAFLD mice compared with control mice. The area under the plasma drug concentration-time curve and maximum plasma concentrations of IhD and IsA were greatly decreased in the NAFLD mice. However, the main residence time of ID and IA were greatly increased in the NAFLD mice. The results revealed that this method could be used to analyze two pairs of triterpenoid isomers in biological samples.
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Affiliation(s)
- Wenwen Zhao
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
| | - Zongyang Liu
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
| | - Weiwei Guo
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
| | - Kui Luo
- Core Facilities Center, Capital Medical University Beijing 100069 China
| | - Jie Yang
- Department of Chinese Medicines Analysis, China Pharmaceutical University Nanjing 210009 China
| | - Wei Gao
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
| | - Xia Wu
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
| | - Xiaoqing Chen
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University Beijing 100069 China
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