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Liou CJ, Wu SJ, Yang HC, Fang LW, Cheng SC, Huang WC. Licochalcone D ameliorates lipid metabolism in hepatocytes by modulating lipogenesis and autophagy. Eur J Pharmacol 2024; 975:176644. [PMID: 38754535 DOI: 10.1016/j.ejphar.2024.176644] [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: 11/12/2023] [Revised: 04/30/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
Metabolic dysfunction-associated fatty liver disease is a metabolic disease caused by abnormal lipid accumulation in the liver. Excessive lipid accumulation results in liver inflammation and fibrosis. Previous studies have demonstrated that the chalcone licochalcone D, which is isolated from Glycyrrhiza inflata Batal, has anti-tumor and anti-inflammatory effects. The present study explored whether licochalcone D can regulate lipid accumulation in fatty liver cells. FL83B hepatocytes were incubated with oleic acid to establish a fatty liver cell model, and then treated with licochalcone D to evaluate the molecular mechanisms underlying the regulation of lipid metabolism. In addition, male C57BL/6 mice were fed a methionine/choline-deficient diet to induce an animal model of metabolic dysfunction-associated steatohepatitis (MASH) and given 5 mg/kg licochalcone D by intraperitoneal injection. In cell experiments, licochalcone D significantly reduced lipid accumulation in fatty liver cells and reduced sterol regulatory element-binding protein 1c expression, blocking fatty acid synthase production. Licochalcone D increased adipose triglyceride lipase and carnitine palmitoyltransferase 1 expression, enhancing lipolysis and fatty acid β-oxidation, respectively. Licochalcone D also significantly increased SIRT-1 and AMPK phosphorylation, reducing acetyl-CoA carboxylase phosphorylation and inhibiting fatty acid synthesis. Licochalcone D also increased the fusion of autophagosomes and lysosomes to promote autophagy, reducing oil droplet accumulation in fatty liver cells. In the animal experiments, licochalcone D effectively reduced the number of lipid vacuoles and degree of fibrosis in liver tissue and inhibited liver inflammation. Thus, licochalcone D can improve MASH by reducing lipid accumulation, inhibiting inflammation, and increasing autophagy.
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Affiliation(s)
- Chian-Jiun Liou
- Department of Nursing, Division of Basic Medical Sciences, Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Taoyuan City, 33303, Taiwan; Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Taoyuan City, 33303, Taiwan
| | - Shu-Ju Wu
- Department of Nutrition and Health Sciences, Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Taoyuan City, 33303, Taiwan; Aesthetic Medical Center, Department of Dermatology, Chang Gung Memorial Hospital, Linkou, Taoyuan, 33303, Taiwan
| | - Hui-Chi Yang
- Graduate Institute of Health Industry Technology, Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Taoyuan City, 33303, Taiwan
| | - Li-Wen Fang
- Department of Nutrition, I-Shou University, No.8, Yida Rd. Yanchao Dist., Kaohsiung City, Taiwan
| | - Shu-Chen Cheng
- Graduate Institute of Health Industry Technology, Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Taoyuan City, 33303, Taiwan; Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, 33303, Taiwan.
| | - Wen-Chung Huang
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Taoyuan City, 33303, Taiwan; Graduate Institute of Health Industry Technology, Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Taoyuan City, 33303, Taiwan; Department of Pediatrics, New Taipei Municipal TuCheng Hospital (Built and Operated by Chang Gung Medical Foundation), New Taipei, 23656, Taiwan.
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2
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Xu D, Zhang L, Song C, Zhang D, Xing C, Lv J, Bian H, Zhu M, Han M, Yu Y, Su L. Acacetin targets STING to alleviate the destabilization of the medial meniscus-induced osteoarthritis in mice. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03167-8. [PMID: 38856915 DOI: 10.1007/s00210-024-03167-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 05/14/2024] [Indexed: 06/11/2024]
Abstract
Osteoarthritis (OA) is a common joint disorder affecting about 7% of the global population, primarily characterized by the gradual loss of articular cartilage. This degeneration results from local inflammation, matrix depletion, and direct cartilage damage. A critical element in this process is the activation of the stimulator of the interferon genes (STING) pathway. Emerging evidence highlights its potential as a therapeutic target, with natural products showing promise as inhibitors. Our study centers on Acacetin, a basic unit of polyketides known for its anti-inflammatory properties. Prior research has highlighted its potential interaction with STING based on the structure. Thus, this study aimed to assess the effectiveness of Acacetin as a STING inhibitor and its protective role against OA. In vitro experiments showed that Acacetin pretreatment not only mitigated interleukin-1β (IL-1β)-induced cytotoxicity but also decreased the inflammatory response and degeneration in chondrocytes stimulated IL-1β. In vivo studies revealed that Acacetin administration significantly reduced articular cartilage destruction, abnormal bone remodeling, and osteophyte formation in a model of OA induced by destabilization of the medial meniscus (DMM). Mechanistically, Acacetin was found to interact directly with STING, and inhibit IL-1β-induced activation of STING, along with the subsequent phosphorylation of the TBK1/NF-κB pathway in chondrocytes. In conclusion, our findings establish Acacetin as an effective inhibitor of STING that protects chondrocytes from IL-1β-induced damage and slows the progression of OA in mice.
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Affiliation(s)
- Dingjun Xu
- School of Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China
- Institute of Translational Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Linjie Zhang
- School of Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Chenyu Song
- School of Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Dinglei Zhang
- Institute of Translational Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Chunlei Xing
- Institute of Translational Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Juan Lv
- Institute of Translational Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Huihui Bian
- Institute of Translational Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Minyu Zhu
- Department of Spine Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Minxuan Han
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China.
- State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing Medical University, Nanjing, China.
| | - Yongsheng Yu
- School of Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China.
| | - Li Su
- Institute of Translational Medicine, Shanghai University, Shangda Road 99, Shanghai, 200444, China.
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3
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Fu Y, Wang Z, Qin H. Examining the Pathogenesis of MAFLD and the Medicinal Properties of Natural Products from a Metabolic Perspective. Metabolites 2024; 14:218. [PMID: 38668346 PMCID: PMC11052500 DOI: 10.3390/metabo14040218] [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: 03/17/2024] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Metabolic-associated fatty liver disease (MAFLD), characterized primarily by hepatic steatosis, has become the most prevalent liver disease worldwide, affecting approximately two-fifths of the global population. The pathogenesis of MAFLD is extremely complex, and to date, there are no approved therapeutic drugs for clinical use. Considerable evidence indicates that various metabolic disorders play a pivotal role in the progression of MAFLD, including lipids, carbohydrates, amino acids, and micronutrients. In recent years, the medicinal properties of natural products have attracted widespread attention, and numerous studies have reported their efficacy in ameliorating metabolic disorders and subsequently alleviating MAFLD. This review aims to summarize the metabolic-associated pathological mechanisms of MAFLD, as well as the natural products that regulate metabolic pathways to alleviate MAFLD.
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Affiliation(s)
| | | | - Hong Qin
- Department of Nutrition and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410006, China; (Y.F.); (Z.W.)
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4
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Liao J, Xie X, Wang N, Wang Y, Zhao J, Chen F, Qu F, Wen W, Miao J, Cui H. Formononetin promotes fatty acid β-oxidation to treat non-alcoholic steatohepatitis through SIRT1/PGC-1α/PPARα pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 124:155285. [PMID: 38185065 DOI: 10.1016/j.phymed.2023.155285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/15/2023] [Accepted: 12/14/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Non-alcoholic steatohepatitis (NASH), the progressive form of non-alcoholic fatty liver disease (NAFLD), carries a high risk of cirrhosis and hepatocellular carcinoma. With the increasing incidence of NASH, the accompanying medical burden is also increasing rapidly, so the development of safe and reliable drugs is urgent. Formononetin (FMNT) has a variety of pharmacological effects such as antioxidant and anti-inflammation, and plays a major role in regulating lipid metabolism, reducing hepatic steatosis and so on, but the mechanism for alleviating NASH is unclear. MATERIALS AND METHODS We firstly established a mouse model on NASH through methionine-choline deficient (MCD) diet to investigate the improvement of FMNT as well as the effects of fatty acid β oxidation and SIRT1/PGC-1α/PPARα pathway. Then, we explored the mechanisms of FMNT regulation in SIRT1/PGC-1α/PPARα pathway and fatty acid β oxidation based on genes silencing of SIRT1 and PGC1A. In addition, SIRT1 agonist (SRT1720) and inhibitor (EX527) were used to verify the mechanism of FMNT on improvement of NASH. RESULTS Our study found that after FMNT intervention, activities of ALT and AST and TG level were improved, and liver function and hepatocellular steatosis on NASH mice were significantly improved. The detection of β oxidation related indicators showed that FMNT intervention up-regulated FAO capacity, level of carnitine, and the levels of ACADM and CPT1A. The detection of factors related to the SIRT1/PGC-1α/PPARα pathway showed that FMNT activated and promoted the expression of SIRT1/PGC-1α/PPARα pathway, including up-regulating the expression level of SIRT1, improving the activity of SIRT1, promoting the deacetylation of PGC-1α, and promoting the transcriptional activity of PPARα. Furthermore, after genes silencing of SIRT1 and PGC1A, we found that FMNT intervention could not alleviate NASH, including improvement of hepatocellular steatosis, enhancement of β oxidation, and regulation of SIRT1/PGC-1α/PPARα pathway. Afterwards, we used SRT1720 as a positive control, and the results indicated that FMNT and SRT1720 intervention had no significant difference on improving hepatocellular steatosis and promoting fatty acid β oxidation. Besides, we found that when EX527 intervention inhibited expression of SIRT1, the improvement of FMNT on NASH was weakened or even disappeared. CONCLUSION In summary, our results demonstrated that FMNT intervention activated SIRT1/PGC-1α/PPARα pathway to promote fatty acid β oxidation and regulate lipid metabolism in liver, ultimately improved hepatocellular steatosis on NASH mice.
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Affiliation(s)
- Jiabao Liao
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Yunnan, China; Jiaxing Hospital of Traditional Chinese Medicine, Zhejiang, China
| | - Xuehua Xie
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Yunnan, China
| | - Ning Wang
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Yunnan, China
| | - Yuming Wang
- Tianjin Second People's Hospital, Tianjin, China
| | - Jie Zhao
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Yunnan, China
| | - Feng Chen
- Jiaxing Hospital of Traditional Chinese Medicine, Zhejiang, China
| | - Fei Qu
- Jiaxing Hospital of Traditional Chinese Medicine, Zhejiang, China
| | - Weibo Wen
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Yunnan, China.
| | - Jing Miao
- Tianjin Second People's Hospital, Tianjin, China.
| | - Huantian Cui
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Yunnan, China.
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5
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Wang L, Jiang Y, Yu Q, Xiao C, Sun J, Weng L, Qiu Y. Gentiopicroside improves high-fat diet-induced NAFLD in association with modulation of host serum metabolome and gut microbiome in mice. Front Microbiol 2023; 14:1145430. [PMID: 37614606 PMCID: PMC10443917 DOI: 10.3389/fmicb.2023.1145430] [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: 01/16/2023] [Accepted: 07/24/2023] [Indexed: 08/25/2023] Open
Abstract
Objective The incidence of non-alcoholic fatty liver disease is increasing every year, and there is growing evidence that metabolites and intestinal bacteria play a causal role in NAFLD. Gentiopicroside, a major iridoids compound in gentian, has been reported to reduce hepatic lipid accumulation. However to date, no studies have confirmed whether the predominance of Gentiopicroside is related to metabolites and intestinal bacteria. Therefore, we sought to study whether the hypolipidemic effect of Gentiopicroside is related to metabolic function and intestinal flora regulation. Methods In the present study, C57BL/6J mice were fed a high-fat diet for 12 weeks, followed by a high-fat diet with or without Gentiopicroside for 8 weeks, respectively. The Gentiopicroside intervention reduced body weight gain, liver index, and decreased serum biochemical parameters such as alanine aminotransferase, aspartate aminotransferase, and triglycerides in high-fat fed mice. The effect of Gentiopicroside on non-alcoholic fatty liver disease was studied using serum untargeted metabolomics and 16S rDNA assay. Results Metabolomic analysis showed that the addition of Gentiopicroside significantly altered the levels of amino acids, unmetabolized Gentiopicroside after administration, and metabolites such as Cinnoline, Galabiosylceramide, and Tryptophyl-Tyrosine, which are involved in the pathways regulating bile secretion, tryptophan metabolism, and lipid metabolism. Analysis of intestinal bacteria showed that Gentiopicrosides altered the community composition structure of intestinal bacteria, characterized by an increase and a decrease in beneficial and harmful bacteria, respectively. In addition, correlation analysis showed that the effect of Gentiopicroside on metabolites was positively correlated with intestinal flora Bacteroides, Lactobacillus, Muribaculum, and Prevotellaceae_UCG_001. Finally, the combined analysis revealed that metabolites were associated with the regulation of Firmicutes and Actinobacteria and positively correlated with lipid levels. Conclusion These results suggest that Gentiopicroside may be a potential agent for the prevention of intestinal disorders and the alleviation of non-alcoholic fatty liver disease.
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Affiliation(s)
| | | | | | | | | | - Lili Weng
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Ye Qiu
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
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6
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Acacetin attenuates the pancreatic and hepatorenal dysfunction in type 2 diabetic rats induced by high-fat diet combined with streptozotocin. J Nat Med 2023; 77:446-454. [PMID: 36892720 DOI: 10.1007/s11418-022-01675-6] [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: 08/19/2022] [Accepted: 12/24/2022] [Indexed: 03/10/2023]
Abstract
Acacetin is a natural flavonoid compound with multiple therapeutic potential in oxidative stress, inflammation, cancers, cardiovascular disease and infections. The present study aimed to detect the effect of acacetin on pancreatic and hepatorenal dysfunction in type 2 diabetic rats. The diabetic rats were induced by high-fat diet (HFD) followed by intraperitoneal injection of streptozotocin (STZ) at a dose of 45 mg/kg. Different doses of acacetin were orally administrated once a day for 8 weeks after the diabetic model was successfully established. The experimental results revealed that acacetin and acarbose displayed obvious attenuation in the levels of fasting blood glucose (FBG) and lipids compared to the untreated diabetic rats. In addition, the physiological function of liver and kidney was impaired in the persistent environment of hyperglycemia, while acacetin improved the damage of liver and kidney. Furthermore, hematoxylin-eosin (H&E) staining indicated that acacetin alleviated the pathological alterations of the pancreas, liver and kidney tissues. Besides, the increased levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), IL-8 and malondialdehyde (MDA) were recused by acacetin treatment, while the reduction of superoxide dismutase (SOD) levels were suppressed by acacetin treatment. In conclusion, the experimental results demonstrated that acacetin improved the lipids and glucose levels, and hepatorenal antioxidant capacity, as well as ameliorated hepatorenal dysfunction in type 2 diabetic rats, and the potential mechanism might be associated with its antioxidant and anti-inflammatory activities.
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7
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Lee JH, Woo KJ, Hong J, Han KI, Kim HS, Kim TJ. Heat-Killed Enterococcus faecalis Inhibit FL83B Hepatic Lipid Accumulation and High Fat Diet-Induced Fatty Liver Damage in Rats by Activating Lipolysis through the Regulation the AMPK Signaling Pathway. Int J Mol Sci 2023; 24:ijms24054486. [PMID: 36901915 PMCID: PMC10002555 DOI: 10.3390/ijms24054486] [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: 12/29/2022] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
Continuous consumption of high-calorie meals causes lipid accumulation in the liver and liver damage, leading to non-alcoholic fatty liver disease (NAFLD). A case study of the hepatic lipid accumulation model is needed to identify the mechanisms underlying lipid metabolism in the liver. In this study, the prevention mechanism of lipid accumulation in the liver of Enterococcus faecalis 2001 (EF-2001) was extended using FL83B cells (FL83Bs) and high-fat diet (HFD)-induced hepatic steatosis. EF-2001 treatment inhibited the oleic acid (OA) lipid accumulation in FL83B liver cells. Furthermore, we performed lipid reduction analysis to confirm the underlying mechanism of lipolysis. The results showed that EF-2001 downregulated proteins and upregulated AMP-activated protein kinase (AMPK) phosphorylation in the sterol regulatory element-binding protein 1c (SREBP-1c) and AMPK signaling pathways, respectively. The effect of EF-2001 on OA-induced hepatic lipid accumulation in FL83Bs enhanced the phosphorylation of acetyl-CoA carboxylase and reduced the levels of lipid accumulation proteins SREBP-1c and fatty acid synthase. EF-2001 treatment increased the levels of adipose triglyceride lipase and monoacylglycerol during lipase enzyme activation, which, when increased, contributed to increased liver lipolysis. In conclusion, EF-2001 inhibits OA-induced FL83B hepatic lipid accumulation and HFD-induced hepatic steatosis in rats through the AMPK signaling pathway.
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Affiliation(s)
- Jin-Ho Lee
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Keun-Jung Woo
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Joonpyo Hong
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Kwon-Il Han
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
- Research & Development Center, Bereum Co., Ltd., Wonju 26361, Republic of Korea
| | - Han Sung Kim
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Tack-Joong Kim
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
- Research & Development Center, Doctor TJ Co., Ltd., Wonju 26493, Republic of Korea
- Correspondence: ; Tel.: +82-33-760-224
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8
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Zhang Y, Huang Q, Xiong X, Yin T, Chen S, Yuan W, Zeng G, Huang Q. Acacetin alleviates energy metabolism disorder through promoting white fat browning mediated by AC-cAMP pathway. J Physiol Biochem 2023:10.1007/s13105-023-00947-3. [PMID: 36781604 DOI: 10.1007/s13105-023-00947-3] [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: 08/25/2022] [Accepted: 01/28/2023] [Indexed: 02/15/2023]
Abstract
Acacetin (ACA), a flavone isolated from Chinese traditional medical herbs, has numerous pharmacological activities. However, little is known about the roles in white fat browning and energy metabolism. In the present study, we investigated whether and how ACA would improve energy metabolism in vivo and in vitro. ACA (20 mg/kg) was intraperitoneally injected to the mice with obesity induced by HFD for 14 consecutive days (in vivo); differentiated 3T3-L1 adipocytes were treated with ACA (20 µmol/L and 40 µmol/L) for 24 h (in vitro). The metabolic profile, lipid accumulation, fat-browning and mitochondrial contents, and so on were respectively detected. The results in vivo showed that ACA significantly reduced the body weight and visceral adipose tissue weight, alleviated the energy metabolism disorder, and enhanced the browning-related protein expressions in adipose tissue of rats. Besides, the data in vitro revealed that ACA significantly reduced the lipid accumulation, induced the expressions of the browning-related proteins and cAMP-dependent protein kinase A (PKA), and increased the mitochondrium contents, especially enhanced the energy metabolism of adipocytes; however, treatment with beta-adrenergic receptor blocker (propranolol, Pro) or adenyl cyclase (AC) inhibitor (SQ22536, SQ) abrogated the ACA-mediated effects. The data demonstrate that ACA alleviates the energy metabolism disorder through the pro-browning effects mediated by the AC-cAMP pathway. The findings would provide the experimental foundation for ACA to prevent and treat obesity and related metabolism disorders.
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Affiliation(s)
- Yanan Zhang
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, 461 Ba-Yi Street, Nanchang, 330006, Jiangxi, People's Republic of China.,Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Qianqian Huang
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, 461 Ba-Yi Street, Nanchang, 330006, Jiangxi, People's Republic of China.,Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Xiaowei Xiong
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, 461 Ba-Yi Street, Nanchang, 330006, Jiangxi, People's Republic of China.,Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Tingting Yin
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, 461 Ba-Yi Street, Nanchang, 330006, Jiangxi, People's Republic of China.,Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Sheng Chen
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, 461 Ba-Yi Street, Nanchang, 330006, Jiangxi, People's Republic of China.,Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Wanwan Yuan
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, 461 Ba-Yi Street, Nanchang, 330006, Jiangxi, People's Republic of China.,Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Guohua Zeng
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, 461 Ba-Yi Street, Nanchang, 330006, Jiangxi, People's Republic of China.,Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Qiren Huang
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, 461 Ba-Yi Street, Nanchang, 330006, Jiangxi, People's Republic of China. .,Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China.
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9
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Yan J, Bak J, Go Y, Park J, Park M, Lee HJ, Kim H. Scytosiphon lomentaria Extract Ameliorates Obesity and Modulates Gut Microbiota in High-Fat-Diet-Fed Mice. Nutrients 2023; 15:815. [PMID: 36839173 PMCID: PMC9965426 DOI: 10.3390/nu15040815] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
Scytosiphon lomentaria (SL) is a brown seaweed with antioxidant and anti-inflammatory properties; however, its effects on obesity are unknown. In this research, we investigated the anti-obesity properties and underlying mechanisms of the SL extract in vitro and in vivo. In 3T3-L1 preadipocytes, SL extract inhibited lipid accumulation, decreased the expression of Acc1, C/ebpa, Pparg mRNA and p-ACC1, and increased the expression of Ucp1 mRNA, UCP1 and p-AMPK. In animal experiments, mice were fed a chow diet, a high-fat diet (HF; 60% of calories as fat), and high-fat diet with SL extract (150 and 300 mg/kg body weight) for eight weeks (n = 10/group). SL extract reduced HF-induced weight gain, epididymal fat weight, fat cell size, LDL-C, leptin, fasting glucose, and glucose tolerance. In addition, SL extract had comparable effects on mRNA expression in WAT and liver to those observed in vitro, thereby inhibiting p-ACC1/ACC1 and increasing p-AMPK/AMPK and UCP1 expression. Furthermore, SL extract decreased HF-induced Firmicutes/Bacteroidetes ratio and reversed HF-reduced Bacteroides spp., Bacteroides vulgatus, and Faecalibacterium prausnitzii. These findings suggest that SL extract can aid in weight loss in mice fed a high-fat diet by altering adipogenic and thermogenic pathways, as well as gut microbiota composition.
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Affiliation(s)
- Jing Yan
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Republic of Korea
| | - Jinwoo Bak
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Republic of Korea
| | - Yula Go
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Republic of Korea
| | - Jumin Park
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Republic of Korea
| | - Minkyoung Park
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Republic of Korea
| | - Hae-Jeung Lee
- Department of Food and Nutrition, Gachon University, Seongnam-si 13120, Republic of Korea
| | - Hyemee Kim
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Republic of Korea
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10
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Jiang Z, Sun H, Miao J, Sheng Q, Xu J, Gao Z, Zhang X, Song Y, Chen K. The natural flavone acacetin protects against high-fat diet-induced lipid accumulation in the liver via the endoplasmic reticulum stress/ferroptosis pathway. Biochem Biophys Res Commun 2023; 640:183-191. [PMID: 36516527 DOI: 10.1016/j.bbrc.2022.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/02/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide. To date, no medication has been approved to treat NAFLD. In this study, we evaluated the therapeutic effect of the natural flavone acacetin on high-fat diet (HFD)-induced NAFLD in mice and the underlying mechanisms. We found that acacetin (10, 20, 50 mg/kg/day) suppressed the increase in body weight, serum total cholesterol, triglycerides, low-density lipoprotein, aspartate aminotransferase, and alanine aminotransferase levels in mice fed with HFD with a dose-dependent manner. Hepatic lipid accumulation, iron overload, and lipid peroxidation were significantly alleviated by acacetin. Quantitative PCR and western blotting revealed that acacetin inhibited endoplasmic reticulum (ER) stress, ferroptosis, and expressions of lipid acid synthesis-related genes in the livers of HFD mice. Similar results were observed in HepG2 cells treated with oleic acid and lipopolysaccharide. The suppressive effects of acacetin on triglycerides and expression of lipid acid synthesis genes were abolished by ER stress and the ferroptosis activators, erastin or TU. Interestingly, the action of TU was more potent than that of erastin. Treatment with the ER stress inhibitor GSK and the ferroptosis inhibitor Fer-1 revealed that ER stress was the upstream signal of ferroptosis for hepatic lipid accumulation. These findings suggest the protective effect of acacetin against lipid accumulation via suppressing ER stress and ferroptosis and provide evidence that ER stress is an upstream signal of ferroptosis in lipid accumulation. Acacetin may be a promising candidate agent for NAFLD treatment.
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Affiliation(s)
- Zhe Jiang
- Department of Gastroenterology, The Affiliated Li Huili Hospital of Ningbo University, Ningbo, Zhejiang, China; Department of Pharmacology, Ningbo University School of Medicine, 818 Fenghua Rd, Ningbo, China; School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Hao Sun
- Department of Pharmacology, Ningbo University School of Medicine, 818 Fenghua Rd, Ningbo, China; School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Jiaen Miao
- Department of Pharmacology, Ningbo University School of Medicine, 818 Fenghua Rd, Ningbo, China; School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Qiyu Sheng
- Department of Pharmacology, Ningbo University School of Medicine, 818 Fenghua Rd, Ningbo, China; School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Jia Xu
- Department of Pharmacology, Ningbo University School of Medicine, 818 Fenghua Rd, Ningbo, China; School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Zhe Gao
- Ningbo Institute of Medical Sciences, 42 Yangshan Rd, Ningbo, China
| | - Xie Zhang
- Department of Gastroenterology, The Affiliated Li Huili Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Yufei Song
- Department of Gastroenterology, The Affiliated Li Huili Hospital of Ningbo University, Ningbo, Zhejiang, China.
| | - Kuihao Chen
- Department of Pharmacology, Ningbo University School of Medicine, 818 Fenghua Rd, Ningbo, China; School of Medicine, Ningbo University, Ningbo, Zhejiang, China.
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11
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Xu SM, Xu Y, Cheng XG, Yang LQ. Tilianin Protects against Nonalcoholic Fatty Liver Disease in Early Obesity Mice. Biol Pharm Bull 2023; 46:419-426. [PMID: 36858570 DOI: 10.1248/bpb.b22-00700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) has emerged as one of the most frequent types of liver disease in pediatric populations with obesity. Tilianin has multiple biological activities including anti-inflammatory and antioxidant. Here, we aim to explore the functions and possible mechanisms of tilianin on NAFLD in obese children. A high-fat high-carbohydrate (HFHC) diet was used to feed 21-d-old mice. Tilianin was administered at a dose of 10 or 20 mg/kg daily. HFHC-fed mice gained weight, increased liver index. The liver showed hepatocyte ballooning, inflammatory infiltration, and steatosis. Elevated levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transpeptidase (GGT), low-density lipoprotein cholesterol (LDL-C) and total cholesterol (TC) and reduced the high-density lipoprotein cholesterol (HDL-C) level were found in HFHC-fed mice. Administration of tilianin significantly reduced these impairments. We further evaluated proteins related to lipid metabolism and observed that LXRα, SREBP-1c, FAS and ACC1 expression were blunted following tilianin administration. In addition, tilianin suppressed reactive oxygen species (ROS) overproduction and lipid peroxide 4-Hydroxynonenal expression, ascribed to its oxidative stress-modulating capacity. Tilianin also reversed the increase in F4/80 expression and proinflammatory cytokine levels. Of note, tilianin administration resulted in decreased protein levels of active caspase-1 and NOD-like receptor protein 3 (NLRP3) in HFHC-fed mice. Our study suggests that tilianin may ameliorate NAFLD in early obese mice by modulating lipids metabolism, oxidative stress, and inflammation, which may in part involve inhibiting NLRP3 inflammasome activation.
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Affiliation(s)
- Sen-Mao Xu
- Department of Pediatrics, the Second Affiliated Hospital of Anhui Medical University.,Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University.,Department of Pediatrics, Anhui Public Health Clinical Center
| | - Yao Xu
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University.,Department of Pediatrics, Anhui Public Health Clinical Center
| | - Xian-Gao Cheng
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University.,Department of Pediatrics, Anhui Public Health Clinical Center
| | - Li-Qi Yang
- Department of Pediatrics, the Second Affiliated Hospital of Anhui Medical University
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