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Gao J, Li F, Huang Y, Li S, Lin Q. Naphthofuran Derivative BF4, a New Potent SIRT1 Activator, Regulates Lipid Metabolism in 3T3-L1 Adipocytes via the SIRT1-AMPK Pathway. Med Chem 2023; 19:879-888. [PMID: 36999720 DOI: 10.2174/1573406419666230330141501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/24/2023] [Accepted: 02/02/2023] [Indexed: 04/01/2023]
Abstract
AIM Our previously reported naphthofuran derivative BF4, identified as a potent silent information regulator 1 (SIRT1) activator, could alleviate high glucose stimulating apoptosis and inflammation response in human renal tubular epithelial (HK-2) cells. INTRODUCTION In this study, the underlying effects of BF4 on lipid metabolism in 3T3-L1 adipocytes were investigated. METHODS The effects of BF4 on pre-adipocyte differentiation and adipocyte lipolysis were studied using oil red O staining and quantitative glycerol and triglyceride content assay kits. Moreover, the molecular mechanism of BF4 on adipogenesis and lipid metabolism in 3T3-L1 adipocytes was investigated by real-time quantitative PCR and Western blotting analysis. RESULTS We found that compound BF4 significantly decreased adipogenesis and lipid accumulation and inhibited the differentiation of 3T3-L1 pre-adipocytes into adipocytes. Moreover, compound BF4 decreased the expressions of several key regulators in adipocyte differentiation, including C/EBPβ and PPARγ, and their downstream lipogenesis targets via the activation of the SIRT1/ AMPK pathway. CONCLUSION Our results demonstrated that the novel SIRT1 activator BF4 might be a potent candidate for regulating lipid metabolism.
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Affiliation(s)
- Jian Gao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
- School of Medicine, Anhui University of Science and Technology, Huainan, China
- Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, Huainan, China
- Key Laboratory of Industrial Dust Prevention and Control & Occupational Safety and Health of the Ministry of Education, Anhui University of Science and Technology, Huainan, China
| | - Fan Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Ye Huang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Shihao Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Qisi Lin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
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Azminah A, Erlina L, Radji M, Mun'im A, Syahdi RR, Yanuar A. In silico and in vitro identification of candidate SIRT1 activators from Indonesian medicinal plants compounds database. Comput Biol Chem 2019; 83:107096. [PMID: 31377446 DOI: 10.1016/j.compbiolchem.2019.107096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 06/21/2019] [Accepted: 07/18/2019] [Indexed: 12/30/2022]
Abstract
Sirtuin 1 (SIRT1) is a class III family of protein histone deacetylases involved in NAD+-dependent deacetylation reactions. It has been suggested that SIRT1 activators may have a protective role against type 2 diabetes, the aging process, and inflammation. This study aimed to explore and identify medicinal plant compounds from Indonesian Herbal Database (HerbalDB) that might potentially become a candidate for SIRT1 activators through a combination of in silico and in vitro methods. Two pharmacophore models were developed using co-crystalized ligands that allosterically bind with SIRT1 similar to the putative ligands used by SIRT1 activators. Then, these were used for the virtual screening of HerbalDB. The identified compounds were subjected to molecular docking and 50 ns molecular dynamics simulation. Molecular dynamics simulation was analyzed using MM-GB(PB)SA methods. The compounds identified by these methods were tested in an in vitro study using a SIRT-Glo™ luminescence assay. Virtual screening using structure-based pharmacophores predicted that mulberrin as the best candidate SIRT1 activator. Virtual screening using ligand-based pharmacophores predicted that gartanin, quinidine, and quinine to be the best candidates as SIRT1 activators. The molecular docking studies showed the important residues involved were Ile223 and Ile227 at the allosteric region. The MM-GB(PB)SA calculations confirmed that mulberrin, gartanin, quinidine, quinine showed activity at allosteric region and their EC50 in vitro values are 2.10; 1.79; 1.71; 1.14 μM, respectively. Based on in silico and in vitro study results, mulberin, gartanin, quinidine, and quinine had good activity as SIRT1 activators.
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Affiliation(s)
- Azminah Azminah
- Faculty of Pharmacy, Universitas Indonesia, Depok, West Java, 16424, Indonesia; Faculty of Pharmacy, Universitas Surabaya, Surabaya, East Java, 60284, Indonesia
| | - Linda Erlina
- Faculty of Medicine, Universitas Indonesia, Salemba, Jakarta, 10430, Indonesia
| | - Maksum Radji
- Faculty of Pharmacy, Universitas Indonesia, Depok, West Java, 16424, Indonesia
| | - Abdul Mun'im
- Faculty of Pharmacy, Universitas Indonesia, Depok, West Java, 16424, Indonesia
| | - Rezi Riadhi Syahdi
- Faculty of Pharmacy, Universitas Indonesia, Depok, West Java, 16424, Indonesia
| | - Arry Yanuar
- Faculty of Pharmacy, Universitas Indonesia, Depok, West Java, 16424, Indonesia.
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Liu S, Sui Q, Zhao Y, Chang X. Lonicera caerulea Berry Polyphenols Activate SIRT1, Enhancing Inhibition of Raw264.7 Macrophage Foam Cell Formation and Promoting Cholesterol Efflux. J Agric Food Chem 2019; 67:7157-7166. [PMID: 31146527 DOI: 10.1021/acs.jafc.9b02045] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Lonicera caerulea berry polyphenols (LCBP) are known to reduce cholesterol accumulation. Currently, it is unknown whether LCBP can activate Sirtuin 1 (SIRT1) to regulate the formation of RAW264.7 macrophage foam cells. In this study, the effect of LCBP on lipid accumulation in macrophages was evaluated. Fluorescently labeled ox-LDL and 25-NBD cholesterol were used to detect the ox-LDL uptake and cholesterol outflow rate from macrophages. Gene silencing was performed using siRNA to detect changes in the expression of the ATP-binding cassette transporter A1 (ABCA1), sterol regulatory element-binding protein 2 (SREBP2), and SIRT1 proteins using Western blotting, and changes in the expression of miR-33 were detected by real-time polymerase chain reaction. The results showed that treatment with 80 μg/mL LCBP significantly inhibited the accumulation of lipids in RAW264.7 macrophages induced by ox-LDL and reduced intracellular cholesterol levels by activating SIRT1 to enhance the expression of ABCA1, a cholesterol efflux gene, but not independent effect. Of the three key LCBP components investigated, chlorogenic acid was found to activate SIRT1 and regulate the expression of the cholesterol-related factors ABCA1, SREBP2, and miR-33; cyanidin-3-glucoside and catechins were effective to a lesser extent. Our results suggest a novel hypolipidemic mechanism of LCBP.
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Affiliation(s)
- Suwen Liu
- College of Food Science & Technology , Hebei Normal University of Science and Technology , Qinhuangdao , Hebei 066004 , China
| | - Qianqian Sui
- College of Food Science & Technology , Hebei Normal University of Science and Technology , Qinhuangdao , Hebei 066004 , China
| | - Yanxue Zhao
- College of Food Science & Technology , Hebei Normal University of Science and Technology , Qinhuangdao , Hebei 066004 , China
| | - Xuedong Chang
- College of Food Science & Technology , Hebei Normal University of Science and Technology , Qinhuangdao , Hebei 066004 , China
- Hebei Yanshan Special Industrial Technology Research Institute , Qinhuangdao , Hebei 066004 , China
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Ren Z, He H, Zuo Z, Xu Z, Wei Z, Deng J. The role of different SIRT1-mediated signaling pathways in toxic injury. Cell Mol Biol Lett 2019; 24:36. [PMID: 31164908 PMCID: PMC6543624 DOI: 10.1186/s11658-019-0158-9] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 05/09/2019] [Indexed: 01/07/2023] Open
Abstract
Common environmental pollutants and drugs encountered in everyday life can cause toxic damage to the body through oxidative stress, inflammatory stimulation, induction of apoptosis, and inhibition of energy metabolism. Silent information regulator 1 (SIRT1), a nicotinamide adenine dinucleotide-dependent deacetylase, is a member of the evolutionarily highly conserved Sir2 (silent information regulator 2) superprotein family, which is located in the nucleus and cytoplasm. It can deacetylate protein substrates in various signal transduction pathways to regulate gene expression, cell apoptosis and senescence, participate in the process of neuroprotection, energy metabolism, inflammation and the oxidative stress response in living organisms, and plays an important role in toxic damage caused by toxicants and in the process of SIRT1 activator/inhibitor antagonized toxic damage. This review summarizes the role that SIRT1 plays in toxic damage caused by toxicants via its interactions with protein substrates in certain signaling pathways.
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Affiliation(s)
- Zhihua Ren
- 1Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130 Sichuan Province China
| | - Hongyi He
- 1Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130 Sichuan Province China
| | - Zhicai Zuo
- 1Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130 Sichuan Province China
| | - Zhiwen Xu
- 1Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130 Sichuan Province China
| | - Zhanyong Wei
- 2The College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan Province China
| | - Junliang Deng
- 1Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130 Sichuan Province China
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Wen H, Xue N, Wu F, He Y, Zhang G, Hu Z, Cui H. Exploration of the Fluorescent Properties and the Modulated Activities against Sirtuin Fluorogenic Assays of Chromenone-Derived Natural Products. Molecules 2018; 23:E1063. [PMID: 29724067 DOI: 10.3390/molecules23051063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 04/20/2018] [Accepted: 04/27/2018] [Indexed: 02/07/2023] Open
Abstract
Chromenone-derived natural products include chromones (flavone, isoflavone) and coumarins. Chromenone compounds not only exhibit impressive biological activities, but also are an important resource of experimentally used fluorophores, such as, 7-amino-4-methylcoumarin (AMC). Various chromenone compounds have reported to have weak fluorescence, and this has the potential to interfere with the measurements during AMC fluorogenic assays and result in non-robust assay readouts. Several flavones and isoflavones were found as SIRT1 activators, while fluorogenic sirtuin assays utilized AMC labelled peptides as the substrates. In this study we investigated whether the fluorescent properties of chromenone-derived natural products interrupt the measurement of SIRT1/2 modulated activities. We found that the reported SIRT1 activators: flavones were detected with the SIRT1 activation activity, but isoflavones were not detected with SIRT1 activation activity, and instead that they were found to be fluorogenic compounds. Another chromenone compound, osthole, exhibited a moderate SIRT2 inhibitory activity with an IC50 of 10 μM. In conclusion, the fluorescent properties of these chromenone compounds do affect the measurement of the sirtuin activities of both inhibitors and activators. However, if the possible fluorescence properties are mitigated in the assay readout, these fluorogenic assays enable the screening of activity modulators.
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Ma LY, Zhou QL, Yang XB, Wang HP, Yang XW. Metabolism of 20(S)-Ginsenoside Rg₂ by Rat Liver Microsomes: Bioactivation to SIRT1-Activating Metabolites. Molecules 2016; 21:molecules21060757. [PMID: 27294899 PMCID: PMC6273440 DOI: 10.3390/molecules21060757] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/22/2016] [Accepted: 06/07/2016] [Indexed: 12/31/2022] Open
Abstract
20(S)-Ginsenoside Rg2 (1) has recently become a hot research topic due to its potent bioactivities and abundance in natural sources such as the roots, rhizomes and stems-leaves of Panaxginseng. However, due to the lack of studies on systematic metabolic profiles, the prospects for new drug development of 1 are still difficult to predict, which has become a huge obstacle for its safe clinical use. To solve this problem, investigation of the metabolic profiles of 1 in rat liver microsomes was first carried out. To identify metabolites, a strategy of combined analyses based on prepared metabolites by column chromatography and ultra-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry (UPLC-Q-TOF/MS) was performed. As a result, four metabolites M1–M4, including a rare new compound named ginsenotransmetin A (M1), were isolated and the structures were confirmed by spectroscopic analyses. A series of metabolites of 1, MA–MG, were also tentatively identified by UPLC-Q-TOF/MS in rat liver microsomal incubate of 1. Partial metabolic pathways were proposed. Among them, 1 and its metabolites M1, M3 and M4 were discovered for the first time to be activators of SIRT1. The SIRT1 activating effects of the metabolite M1 was comparable to those of 1, while the most interesting SIRT1 activatory effects of M3 and M4 were higher than that of 1 and comparable with that of resveratrol, a positive SIRT1 activator. These results indicate that microsome-dependent metabolism may represent a bioactivation pathway for 1. This study is the first to report the metabolic profiles of 1invitro, and the results provide an experimental foundation to better understand the in vivo metabolic fate of 1.
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Affiliation(s)
- Li-Yuan Ma
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
| | - Qi-Le Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
| | - Xin-Bao Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
| | - Hong-Ping Wang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
| | - Xiu-Wei Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
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