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Zhang Y, Zeng M, Zhang X, Yu Q, Wang L, Zeng W, Wang Y, Suo Y, Jiang X. Tiaogan daozhuo formula attenuates atherosclerosis via activating AMPK -PPARγ-LXRα pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117814. [PMID: 38286155 DOI: 10.1016/j.jep.2024.117814] [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: 10/22/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 01/31/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tiaogan Daozhuo Formula (TGDZF) is a common formulation against atherosclerosis, however, there is limited understanding of its therapeutic mechanism. AIM OF THIS STUDY To examine the effectiveness of TGDZF in the treatment of atherosclerosis and to explore its mechanisms. MATERIALS AND METHODS In ApoE-/- mice, atherosclerosis was induced by a high-fat diet for 12 weeks and treated with TGDZF at different doses. The efficacy of TGDZF in alleviating atherosclerosis was evaluated by small animal ultrasound and histological methods. Lipid levels were measured by biochemical methods. The capacity of cholesterol efflux was tested with a cholesterol efflux assay in peritoneal macrophage, and the expression of AMPKα1, PPARγ, LXRα, and ABCA1 was examined at mRNA and protein levels. Meanwhile, RAW264.7-derived macrophages were induced into foam cells by ox-LDL, and different doses of TGDZF-conducting serum were administered. Similarly, we examined differences in intracellular lipid accumulation, cholesterol efflux rate, and AMPKα1, PPARγ, LXRα, and ABCA1 levels following drug intervention. Finally, changes in the downstream molecules were evaluated following the inhibition of AMPK by compound C or PPARγ silencing by small interfering RNA. RESULTS TGDZF administration reduced aortic plaque area and lipid accumulation in aortic plaque and hepatocytes, and improved the serum lipid profiles of ApoE-/- mice. Further study revealed that its efficacy was accompanied by an increase in cholesterol efflux rate and the expression of PPARγ, LXRα, and ABCA1 mRNA and protein, as well as the promotion of AMPKα1 phosphorylation. Moreover, similar results were caused by the intervention of TGDZF-containing serum in vitro experiments. Inhibition of AMPK and PPARγ partially blocked the regulatory effect of TGDZF, respectively. CONCLUSIONS TGDZF alleviated atherosclerosis and promoted cholesterol efflux from macrophages by activating the AMPK-PPARγ-LXRα-ABCA1 pathway.
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Affiliation(s)
- Yue Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
| | - Miao Zeng
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
| | - Xiaolu Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
| | - Qun Yu
- School of Preclinical Medicine, Zunyi Medical University, Guizhou, China.
| | - Luming Wang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
| | - Wenyun Zeng
- Traditional Chinese Medicine Department, Ganzhou People's Hospital, Ganzhou, China.
| | - Yijing Wang
- School of Nursing, Tianjin University of Chinese Medicine, Tianjin, China.
| | - Yanrong Suo
- Traditional Chinese Medicine Department, Ganzhou People's Hospital, Ganzhou, China.
| | - Xijuan Jiang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
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Li Z, Zheng D, Zhang T, Ruan S, Li N, Yu Y, Peng Y, Wang D. The roles of nuclear receptors in cholesterol metabolism and reverse cholesterol transport in nonalcoholic fatty liver disease. Hepatol Commun 2024; 8:e0343. [PMID: 38099854 PMCID: PMC10727660 DOI: 10.1097/hc9.0000000000000343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/28/2023] [Indexed: 12/18/2023] Open
Abstract
As the most prevalent chronic liver disease globally, NAFLD encompasses a pathological process that ranges from simple steatosis to NASH, fibrosis, cirrhosis, and HCC, closely associated with numerous extrahepatic diseases. While the initial etiology was believed to be hepatocyte injury caused by lipid toxicity from accumulated triglycerides, recent studies suggest that an imbalance of cholesterol homeostasis is of greater significance. The role of nuclear receptors in regulating liver cholesterol homeostasis has been demonstrated to be crucial. This review summarizes the roles and regulatory mechanisms of nuclear receptors in the 3 main aspects of cholesterol production, excretion, and storage in the liver, as well as their cross talk in reverse cholesterol transport. It is hoped that this review will offer new insights and theoretical foundations for the study of the pathogenesis and progression of NAFLD and provide new research directions for extrahepatic diseases associated with NAFLD.
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Li H, Wang M, Qu K, Xu R, Zhu H. MP Allosterically Activates AMPK to Enhance ABCA1 Stability by Retarding the Calpain-Mediated Degradation Pathway. Int J Mol Sci 2023; 24:17280. [PMID: 38139111 PMCID: PMC10743971 DOI: 10.3390/ijms242417280] [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: 10/05/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
It is widely recognized that macrophage cholesterol efflux mediated by the ATP-binding cassette transporter A1 (ABCA1) constitutes the initial and rate-limiting step of reverse cholesterol transport (RCT), displaying a negative correlation with the development of atherosclerosis. Although the transcriptional regulation of ABCA1 has been extensively studied in previous research, the impact of post-translational regulation on its expression remains to be elucidated. In this study, we report an AMP-activated protein kinase (AMPK) agonist called ((2R,3S,4R,5R)-3,4-dihydroxy-5-(6-((3-hydroxyphenyl) amino)-9H-purin-9-yl) tetrahydrofuran-2-yl) methyl dihydrogen phosphate (MP), which enhances ABCA1 expression through post-translational regulation rather than transcriptional regulation. By integrating the findings of multiple experiments, it is confirmed that MP directly binds to AMPK with a moderate binding affinity, subsequently triggering its allosteric activation. Further investigations conducted on macrophages unveil a novel mechanism through which MP modulates ABCA1 expression. Specifically, MP downregulates the Cav1.2 channel to obstruct the influx of extracellular Ca2+, thereby diminishing intracellular Ca2+ levels, suppressing calcium-activated calpain activity, and reducing the interaction strength between calpain and ABCA1. This cascade of events culminates in the deceleration of calpain-mediated degradation of ABCA1. In conclusion, MP emerges as a potentially promising candidate compound for developing agents aimed at enhancing ABCA1 stability and boosting cellular cholesterol efflux and RCT.
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Affiliation(s)
| | | | | | | | - Haibo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Xian Nong Tan Street 1, Xicheng District, Beijing 100050, China; (H.L.); (M.W.); (K.Q.); (R.X.)
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4
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Cui Y, Chen J, Zhang Z, Shi H, Sun W, Yi Q. The role of AMPK in macrophage metabolism, function and polarisation. J Transl Med 2023; 21:892. [PMID: 38066566 PMCID: PMC10709986 DOI: 10.1186/s12967-023-04772-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
Abstract
AMP-activated protein kinase (AMPK) is a ubiquitous sensor of energy and nutritional status in eukaryotic cells. It plays a key role in regulating cellular energy homeostasis and multiple aspects of cell metabolism. During macrophage polarisation, AMPK not only guides the metabolic programming of macrophages, but also counter-regulates the inflammatory function of macrophages and promotes their polarisation toward the anti-inflammatory phenotype. AMPK is located at the intersection of macrophage metabolism and inflammation. The metabolic characteristics of macrophages are closely related to immune-related diseases, infectious diseases, cancer progression and immunotherapy. This review discusses the structure of AMPK and its role in the metabolism, function and polarisation of macrophages. In addition, it summarises the important role of the AMPK pathway and AMPK activators in the development of macrophage-related diseases.
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Affiliation(s)
- Yinxing Cui
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou, 646000, China
- Department of General Surgery, Dongguan Huangjiang Hospital, Dongguan, 523061, Guangdong, China
| | - Junhua Chen
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou, 646000, China
| | - Zhao Zhang
- Department of General Surgery, Dongguan Huangjiang Hospital, Dongguan, 523061, Guangdong, China
| | - Houyin Shi
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Weichao Sun
- Department of Bone Joint and Bone Oncology, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China.
- The Central Laboratory, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China.
| | - Qian Yi
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou, 646000, China.
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5
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Lee MS, Kim Y. Effects of Quercetin Nanoemulsion on Cholesterol Efflux and MicroRNA-33/34a Expression in the Liver of Mice Fed with a High-Cholesterol Diet. Prev Nutr Food Sci 2023; 28:271-277. [PMID: 37842255 PMCID: PMC10567602 DOI: 10.3746/pnf.2023.28.3.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 10/17/2023] Open
Abstract
Quercetin is a flavonoid widely present in plants; despite its beneficial physiological activity, it exhibits considerably low bioavailability. Nanoemulsion technology is used for improving the bioavailability of lipophilic phenolic compounds. This study aimed to investigate the potential effects of quercetin nanoemulsion (QN) on regulating the microRNA (miR)-33/34a pathway involved in cholesterol efflux in the liver of mice fed with a high-cholesterol (HC) diet. Subsequently, C57BL/6J mice were divided into four groups and fed a normal chow diet, HC diet supplemented with 1% cholesterol and 0.5% cholic acid, or HC diet supplemented with 0.05% QN or 0.1% QN for 6 weeks. Serum and hepatic lipid profiles were assayed using commercial enzymatic kits. Gene expression and miR levels were quantified using real-time quantitative reverse transcription polymerase chain reaction, and adenosine monophosphate-activated protein kinase (AMPK) activity was measured using an AMPK Kinase Assay kit. QN supplementation improved serum and liver lipid profiles. QN upregulated the mRNA levels of adenosine triphosphate (ATP)-binding cassette subfamily A1, ATP-binding cassette subfamily G1, and scavenger receptor class B type 1, which are related to cholesterol efflux. In the QN group, the hepatic AMPK activity increased, whereas miR-33, and miR-34a expression levels decreased. These results suggest that QN may enhance cholesterol efflux, at least partly through modulating AMPK activity and miR-33/34a expression in the liver.
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Affiliation(s)
- Mak-Soon Lee
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03760, Korea
| | - Yangha Kim
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03760, Korea
- Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Korea
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6
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Zhang J, Zhu Y, Wang X, Wang J. 25-hydroxycholesterol: an integrator of antiviral ability and signaling. Front Immunol 2023; 14:1268104. [PMID: 37781400 PMCID: PMC10533924 DOI: 10.3389/fimmu.2023.1268104] [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: 07/27/2023] [Accepted: 08/29/2023] [Indexed: 10/03/2023] Open
Abstract
Cholesterol, as an important component in mammalian cells, is efficient for viral entry, replication, and assembly. Oxysterols especially hydroxylated cholesterols are recognized as novel regulators of the innate immune response. The antiviral ability of 25HC (25-Hydroxycholesterol) is uncovered due to its role as a metabolic product of the interferon-stimulated gene CH25H (cholesterol-25-hydroxylase). With the advancement of research, the biological functions of 25HC and its structural functions have been interpreted gradually. Furthermore, the underlying mechanisms of antiviral effect of 25HC are not only limited to interferon regulation. Taken up by the special biosynthetic ways and structure, 25HC contributes to modulate not only the cholesterol metabolism but also autophagy and inflammation by regulating signaling pathways. The outcome of modulation by 25HC seems to be largely dependent on the cell types, viruses and context of cell microenvironments. In this paper, we review the recent proceedings on the regulatory effect of 25HC on interferon-independent signaling pathways related to its antiviral capacity and its putative underlying mechanisms.
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Affiliation(s)
- Jialu Zhang
- College of Veterinary Medicine, China Agricultural University, Beijing, China
- College of Veterinary Medicine, Sanya Institute of China Agricultural University, Sanya, China
| | - Yaohong Zhu
- College of Veterinary Medicine, China Agricultural University, Beijing, China
- College of Veterinary Medicine, Sanya Institute of China Agricultural University, Sanya, China
| | - Xiaojia Wang
- College of Veterinary Medicine, China Agricultural University, Beijing, China
- College of Veterinary Medicine, Sanya Institute of China Agricultural University, Sanya, China
| | - Jiufeng Wang
- College of Veterinary Medicine, China Agricultural University, Beijing, China
- College of Veterinary Medicine, Sanya Institute of China Agricultural University, Sanya, China
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7
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Wang J, Parajuli N, Wang Q, Khalasawi N, Peng H, Zhang J, Yin C, Mi QS, Zhou L. MiR-23a Regulates Skin Langerhans Cell Phagocytosis and Inflammation-Induced Langerhans Cell Repopulation. BIOLOGY 2023; 12:925. [PMID: 37508356 PMCID: PMC10376168 DOI: 10.3390/biology12070925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 06/04/2023] [Accepted: 06/13/2023] [Indexed: 07/30/2023]
Abstract
Langerhans cells (LCs) are skin-resident macrophage that act similarly to dendritic cells for controlling adaptive immunity and immune tolerance in the skin, and they are key players in the development of numerous skin diseases. While TGF-β and related downstream signaling pathways are known to control numerous aspects of LC biology, little is known about the epigenetic signals that coordinate cell signaling during LC ontogeny, maintenance, and function. Our previous studies in a total miRNA deletion mouse model showed that miRNAs are critically involved in embryonic LC development and postnatal LC homeostasis; however, the specific miRNA(s) that regulate LCs remain unknown. miR-23a is the first member of the miR-23a-27a-24-2 cluster, a direct downstream target of PU.1 and TGF-b, which regulate the determination of myeloid versus lymphoid fates. Therefore, we used a myeloid-specific miR-23a deletion mouse model to explore whether and how miR-23a affects LC ontogeny and function in the skin. We observed the indispensable role of miR-23a in LC antigen uptake and inflammation-induced LC epidermal repopulation; however, embryonic LC development and postnatal homeostasis were not affected by cells lacking miR23a. Our results suggest that miR-23a controls LC phagocytosis by targeting molecules that regulate efferocytosis and endocytosis, whereas miR-23a promotes homeostasis in bone marrow-derived LCs that repopulate the skin after inflammatory insult by targeting Fas and Bcl-2 family proapoptotic molecules. Collectively, the context-dependent regulatory role of miR-23a in LCs represents an extra-epigenetic layer that incorporates TGF-b- and PU.1-mediated regulation during steady-state and inflammation-induced repopulation.
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Affiliation(s)
- Jie Wang
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, MI 48202, USA; (J.W.); (N.P.); (Q.W.); (C.Y.)
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI 48202, USA
| | - Nirmal Parajuli
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, MI 48202, USA; (J.W.); (N.P.); (Q.W.); (C.Y.)
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI 48202, USA
| | - Qiyan Wang
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, MI 48202, USA; (J.W.); (N.P.); (Q.W.); (C.Y.)
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI 48202, USA
| | - Namir Khalasawi
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, MI 48202, USA; (J.W.); (N.P.); (Q.W.); (C.Y.)
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI 48202, USA
| | - Hongmei Peng
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, MI 48202, USA; (J.W.); (N.P.); (Q.W.); (C.Y.)
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI 48202, USA
| | - Jun Zhang
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, MI 48202, USA; (J.W.); (N.P.); (Q.W.); (C.Y.)
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI 48202, USA
| | - Congcong Yin
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, MI 48202, USA; (J.W.); (N.P.); (Q.W.); (C.Y.)
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI 48202, USA
| | - Qing-Sheng Mi
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, MI 48202, USA; (J.W.); (N.P.); (Q.W.); (C.Y.)
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI 48202, USA
- Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA
- Department of Biochemistry, Microbiology and Immunology, School of Medicine, Wayne State University, Detroit, MI 48202, USA
- Department of Internal Medicine, Henry Ford Health, Detroit, MI 48202, USA
| | - Li Zhou
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, MI 48202, USA; (J.W.); (N.P.); (Q.W.); (C.Y.)
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI 48202, USA
- Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA
- Department of Biochemistry, Microbiology and Immunology, School of Medicine, Wayne State University, Detroit, MI 48202, USA
- Department of Internal Medicine, Henry Ford Health, Detroit, MI 48202, USA
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8
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Xia Y, Xu Y, Liu Q, Zhang J, Zhang Z, Jia Q, Tang Q, Jing X, Li J, Chen J, Xiong Y, Li Y, He J. Glutaredoxin 1 regulates cholesterol metabolism and gallstone formation by influencing protein S-glutathionylation. Metabolism 2023:155610. [PMID: 37277061 DOI: 10.1016/j.metabol.2023.155610] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/23/2023] [Accepted: 05/30/2023] [Indexed: 06/07/2023]
Abstract
OBJECTIVE Cholesterol gallstone disease (CGD) is closely related to cholesterol metabolic disorder. Glutaredoxin-1 (Glrx1) and Glrx1-related protein S-glutathionylation are increasingly being observed to drive various physiological and pathological processes, especially in metabolic diseases such as diabetes, obesity and fatty liver. However, Glrx1 has been minimally explored in cholesterol metabolism and gallstone disease. METHODS We first investigated whether Glrx1 plays a role in gallstone formation in lithogenic diet-fed mice using immunoblotting and quantitative real-time PCR. Then a whole-body Glrx1-deficient (Glrx1-/-) mice and hepatic-specific Glrx1-overexpressing (AAV8-TBG-Glrx1) mice were generated, in which we analyzed the effects of Glrx1 on lipid metabolism upon LGD feeding. Quantitative proteomic analysis and immunoprecipitation (IP) of glutathionylated proteins were performed. RESULTS We found that protein S-glutathionylation was markedly decreased and the deglutathionylating enzyme Glrx1 was greatly increased in the liver of lithogenic diet-fed mice. Glrx1-/- mice were protected from gallstone disease induced by a lithogenic diet because their biliary cholesterol and cholesterol saturation index (CSI) were reduced. Conversely, AAV8-TBG-Glrx1 mice showed greater gallstone progression with increased cholesterol secretion and CSI. Further studies showed that Glrx1-overexpressing greatly induced bile acid levels and/or composition to increase intestinal cholesterol absorption by upregulating Cyp8b1. In addition, liquid chromatography-mass spectrometry and IP analysis revealed that Glrx1 also affected the function of asialoglycoprotein receptor 1 (ASGR1) by mediating its deglutathionylation, thereby altering the expression of LXRα and controlling cholesterol secretion. CONCLUSION Our findings present novel roles of Glrx1 and Glrx1-regulated protein S-glutathionylation in gallstone formation through the targeting of cholesterol metabolism. Our data advises Glrx1 significantly increased gallstone formation by simultaneously increase bile-acid-dependent cholesterol absorption and ASGR1- LXRα-dependent cholesterol efflux. Our work suggests the potential effects of inhibiting Glrx1 activity to treat cholelithiasis.
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Affiliation(s)
- Yan Xia
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Ying Xu
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Qinhui Liu
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Jinhang Zhang
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Zijing Zhang
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Qingyi Jia
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Qin Tang
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Xiandan Jing
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Jiahui Li
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Jiahao Chen
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Yimin Xiong
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Yanping Li
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
| | - Jinhan He
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
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9
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Zhu Y, Lin X, Zhou X, Prochownik EV, Wang F, Li Y. Posttranslational control of lipogenesis in the tumor microenvironment. J Hematol Oncol 2022; 15:120. [PMID: 36038892 PMCID: PMC9422141 DOI: 10.1186/s13045-022-01340-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/11/2022] [Indexed: 11/30/2022] Open
Abstract
Metabolic reprogramming of cancer cells within the tumor microenvironment typically occurs in response to increased nutritional, translation and proliferative demands. Altered lipid metabolism is a marker of tumor progression that is frequently observed in aggressive tumors with poor prognosis. Underlying these abnormal metabolic behaviors are posttranslational modifications (PTMs) of lipid metabolism-related enzymes and other factors that can impact their activity and/or subcellular localization. This review focuses on the roles of these PTMs and specifically on how they permit the re-wiring of cancer lipid metabolism, particularly within the context of the tumor microenvironment.
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Affiliation(s)
- Yahui Zhu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430072, China.,Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, 430071, China.,School of Medicine, Chongqing University, Chongqing, 400030, China
| | - Xingrong Lin
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430072, China.,Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, 430071, China
| | - Xiaojun Zhou
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430072, China.,Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, 430071, China
| | - Edward V Prochownik
- Division of Hematology/Oncology, Children's Hospital of Pittsburgh of UPMC, The Department of Microbiology and Molecular Genetics, The Pittsburgh Liver Research Center and The Hillman Cancer Center of UPMC, The University of Pittsburgh Medical Center, Pittsburgh, PA, 15224, USA
| | - Fubing Wang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430072, China.
| | - Youjun Li
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430072, China. .,Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, 430071, China.
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10
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Lewandowski CT, Laham MS, Thatcher GR. Remembering your A, B, C's: Alzheimer's disease and ABCA1. Acta Pharm Sin B 2022; 12:995-1018. [PMID: 35530134 PMCID: PMC9072248 DOI: 10.1016/j.apsb.2022.01.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/27/2021] [Accepted: 01/07/2022] [Indexed: 12/24/2022] Open
Abstract
The function of ATP binding cassette protein A1 (ABCA1) is central to cholesterol mobilization. Reduced ABCA1 expression or activity is implicated in Alzheimer's disease (AD) and other disorders. Therapeutic approaches to boost ABCA1 activity have yet to be translated successfully to the clinic. The risk factors for AD development and progression, including comorbid disorders such as type 2 diabetes and cardiovascular disease, highlight the intersection of cholesterol transport and inflammation. Upregulation of ABCA1 can positively impact APOE lipidation, insulin sensitivity, peripheral vascular and blood–brain barrier integrity, and anti-inflammatory signaling. Various strategies towards ABCA1-boosting compounds have been described, with a bias toward nuclear hormone receptor (NHR) agonists. These agonists display beneficial preclinical effects; however, important side effects have limited development. In particular, ligands that bind liver X receptor (LXR), the primary NHR that controls ABCA1 expression, have shown positive effects in AD mouse models; however, lipogenesis and unwanted increases in triglyceride production are often observed. The longstanding approach, focusing on LXRβ vs. LXRα selectivity, is over-simplistic and has failed. Novel approaches such as phenotypic screening may lead to small molecule NHR modulators that elevate ABCA1 function without inducing lipogenesis and are clinically translatable.
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11
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Kim YK, Hong HK, Yoo HS, Park SP, Park KH. AICAR upregulates ABCA1/ABCG1 expression in the retinal pigment epithelium and reduces Bruch's membrane lipid deposit in ApoE deficient mice. Exp Eye Res 2021; 213:108854. [PMID: 34808137 DOI: 10.1016/j.exer.2021.108854] [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: 09/29/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 11/26/2022]
Abstract
The etiology of age-related macular degeneration (AMD) is diverse; however, recent evidence suggests that the lipid metabolism-cholesterol pathway might be associated with the pathophysiology of AMD. The ATP-binding cassette (ABC) transporters, ABCA1 and ABCG1, are essential for the formation of high-density lipoprotein (HDL) and the regulation of macrophage cholesterol efflux. The failure of retinal or retinal pigment epithelium (RPE) cholesterol efflux to remove excess intracellular lipids causes morphological and functional damage to the retina. In this study, we investigated whether treatment with 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR), an AMP-activated protein kinase (AMPK) activator, improves RPE cholesterol efflux and Bruch's membrane (BM) lipid deposits. The protein and mRNA levels of ABCA1 and ABCG1 in ARPE-19 cells and retinal and RPE/choroid tissue from apolipoprotein E-deficient (ApoE-/-) mice were evaluated after 24 weeks of AICAR treatment. The cholesterol efflux capacity of ARPE-19 cells and the cholesterol-accepting capacity of apoB-depleted serum from mice were measured. The thickness of the BM and the degree of lipid deposition were evaluated using electron microscopy. AICAR treatment increased the phosphorylation of AMPK and the protein and mRNA expression of ABCA1 and ABCG1 in vitro. It promoted cholesterol efflux from ARPE-19 cells and upregulated the protein and mRNA levels of ABCA1 and ABCG1 in the retina and RPE in vivo. ApoB-depleted serum from the AICAR-treated group showed enhanced cholesterol-accepting capacity. Long-term treatment with AICAR reduced BM thickening and lipid deposition in ApoE-/- mice. In conclusion, AICAR treatment increased the expression of lipid transporters in the retina and RPE in vivo, facilitated intracellular cholesterol efflux from the RPE in vitro, and improved the functionality of HDL to accept cholesterol effluxed from the cell, possibly via AMPK activation. Collectively, these effects might contribute to the improvement of early age-related pathologic changes in the BM. Pharmacological improvement of RPE cholesterol efflux via AMPK activation may be a potential treatment strategy for AMD.
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Affiliation(s)
- Yong-Kyu Kim
- Department of Ophthalmology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - Hye Kyoung Hong
- Department of Ophthalmology, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Hyo Soon Yoo
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, South Korea
| | - Sung Pyo Park
- Department of Ophthalmology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea.
| | - Kyu Hyung Park
- Department of Ophthalmology, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Ophthalmology, Seoul National University College of Medicine, Seoul, South Korea.
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12
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5,7,3',4'-tetramethoxyflavone ameliorates cholesterol dysregulation by mediating SIRT1/FOXO3a/ABCA1 signaling in osteoarthritis chondrocytes. Future Med Chem 2021; 13:2153-2166. [PMID: 34608806 DOI: 10.4155/fmc-2021-0247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Dyslipidemia has been associated with the development of osteoarthritis. Our previous study found that 5,7,3',4'-tetramethoxyflavone (TMF) exhibited protective activities against the pathological changes of osteoarthritis. Aim: To investigate the roles of TMF in regulating ABCA1-mediated cholesterol metabolism. Methods: Knockdown and overexpression were employed to study gene functions. Protein-protein interaction was investigated by co-immunoprecipitation, and the subcellular locations of proteins were studied by immunofluorescence. Results: IL-1β decreased ABCA1 expression and induced apoptosis. Therapeutically, TMF ameliorated the effects of IL-1β. FOXO3a knockdown expression abrogated the effects of TMF, and FOXO3a overexpression increased ABCA1 expression by interacting with LXRα. TMF promoted FOXO3a nuclear translocation by activating SIRT1 expression. Conclusions: TMF ameliorates cholesterol dysregulation by increasing the expression of FOXO3a/LXRα/ABCA1 signaling through SIRT1 in C28/I2 cells.
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13
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Tanyanskiy DA, Trulioff AS, Ageeva EV, Nikitin AA, Shavva VS, Orlov SV. The Influence of Adiponectin on Production of Apolipoproteins A-1 and E by Human Macrophages. Mol Biol 2021. [DOI: 10.1134/s0026893321030122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Zhao Y, Li Y, Liu Q, Tang Q, Zhang Z, Zhang J, Huang C, Huang H, Zhang G, Zhou J, Yan J, Xia Y, Zhang Z, He J. Canagliflozin Facilitates Reverse Cholesterol Transport Through Activation of AMPK/ABC Transporter Pathway. Drug Des Devel Ther 2021; 15:2117-2128. [PMID: 34040350 PMCID: PMC8140894 DOI: 10.2147/dddt.s306367] [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: 02/12/2021] [Accepted: 04/13/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND AND PURPOSE Cholesterol is an essential lipid and its homeostasis is a major factor for many diseases, such as hyperlipidemia, atherosclerosis, diabetes, and obesity. Sodium-glucose cotransporter 2 (SGLT2) inhibitor canagliflozin (Cana) is a new kind of hypoglycemic agent, which decreases urinary glucose reabsorption and reduces hyperglycemia. Cana has been shown to regulate serum lipid, decrease serum triglyceride and increase serum high-density lipoprotein-cholesterol (HDL-C), and improve cardiovascular outcomes. But evidence of how Cana impacted the cholesterol metabolism remains elusive. METHODS We treated Cana on mice with chow diet or western diet and then detected cholesterol metabolism in the liver and intestine. To explore the mechanism, we also treated hepG2 cells and Caco2 cells with different concentrations of Cana. RESULTS In this study, we showed that Cana facilitated hepatic and intestinal cholesterol efflux. Mechanically, Cana via activating adenosine monophosphate-activated protein kinase (AMPK) increased the expression of ATP-binding cassette (ABC) transporters ABCG5 and ABCG8 in liver and intestine, increased biliary and fecal cholesterol excretion. CONCLUSION This research confirms that Cana regulates cholesterol efflux and improves blood and hepatic lipid; this may be a partial reason for improving cardiovascular disease.
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Affiliation(s)
- Yingnan Zhao
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Yanping Li
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Qinhui Liu
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Qin Tang
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Zijing Zhang
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Jinhang Zhang
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Cuiyuan Huang
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Hui Huang
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Guorong Zhang
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Jian Zhou
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Jiamin Yan
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Yan Xia
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Zhiyong Zhang
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Jinhan He
- Department of Pharmacy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
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15
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Mota AC, Dominguez M, Weigert A, Snodgrass RG, Namgaladze D, Brüne B. Lysosome-Dependent LXR and PPARδ Activation Upon Efferocytosis in Human Macrophages. Front Immunol 2021; 12:637778. [PMID: 34025647 PMCID: PMC8137840 DOI: 10.3389/fimmu.2021.637778] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 04/23/2021] [Indexed: 01/01/2023] Open
Abstract
Efferocytosis is critical for tissue homeostasis, as its deregulation is associated with several autoimmune pathologies. While engulfing apoptotic cells, phagocytes activate transcription factors, such as peroxisome proliferator-activated receptors (PPAR) or liver X receptors (LXR) that orchestrate metabolic, phagocytic, and inflammatory responses towards the ingested material. Coordination of these transcription factors in efferocytotic human macrophages is not fully understood. In this study, we evaluated the transcriptional profile of macrophages following the uptake of apoptotic Jurkat T cells using RNA-seq analysis. Results indicated upregulation of PPAR and LXR pathways but downregulation of sterol regulatory element-binding proteins (SREBP) target genes. Pharmacological inhibition and RNA interference pointed to LXR and PPARδ as relevant transcriptional regulators, while PPARγ did not substantially contribute to gene regulation. Mechanistically, lysosomal digestion and lysosomal acid lipase (LIPA) were required for PPAR and LXR activation, while PPARδ activation also demanded an active lysosomal phospholipase A2 (PLA2G15). Pharmacological interference with LXR signaling attenuated ABCA1-dependent cholesterol efflux from efferocytotic macrophages, but suppression of inflammatory responses following efferocytosis occurred independently of LXR and PPARδ. These data provide mechanistic details on LXR and PPARδ activation in efferocytotic human macrophages.
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Affiliation(s)
- Ana Carolina Mota
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Monica Dominguez
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Andreas Weigert
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Ryan G Snodgrass
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Dmitry Namgaladze
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Bernhard Brüne
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany.,Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Frankfurt, Germany.,German Cancer Consortium (DKTK), Partner Site Frankfurt, Frankfurt, Germany.,Frankfurt Cancer Institute, Goethe-University Frankfurt, Frankfurt, Germany
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16
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Tsui PF, Chern CY, Lien CF, Lin FY, Tsai CS, Tsai MC, Lin CS. An octimibate derivative, Oxa17, enhances cholesterol efflux and exerts anti-inflammatory and atheroprotective effects in experimental atherosclerosis. Biochem Pharmacol 2021; 188:114581. [PMID: 33895158 DOI: 10.1016/j.bcp.2021.114581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/22/2022]
Abstract
Atherosclerotic cardiovascular diseases (ASCVDs), associated with vascular inflammation and lipid dysregulation, are responsible for high morbidity and mortality rates globally. For ASCVD treatment, cholesterol efflux plays an atheroprotective role in ameliorating inflammation and lipid dysregulation. To develop a multidisciplinary agent for promoting cholesterol efflux, octimibate derivatives were screened and investigated for the expression of ATP-binding cassette transporter A1 (ABCA1). Western blotting and qPCR analysis were conducted to determine the molecular mechanism associated with ABCA1 expression in THP-1 macrophages; results revealed that Oxa17, an octimibate derivative, enhanced ABCA1 expression through liver X receptors alpha (LXRα) activation but not through the microRNA pathway. We also investigated the role of Oxa17 in high-fat diet (HFD)-fed mice used as an in vivo atherosclerosis-prone model. In ldlr-/- mice, Oxa17 increased plasma high-density lipoprotein (HDL) and reduced plaque formation in the aorta. Plaque stability improved via reduction of macrophage accumulation and via narrowing of the necrotic core size under Oxa17 treatment. Our study demonstrates that Oxa17 is a novel and potential agent for ASCVD treatment with atheroprotective and anti-inflammatory properties.
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Affiliation(s)
- Pi-Fen Tsui
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 11490, Taiwan; Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan
| | - Ching-Yuh Chern
- Department of Applied Chemistry, National Chiayi University, Chiayi City 60004, Taiwan
| | - Chih-Feng Lien
- Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan
| | - Feng-Yen Lin
- Taipei Heart Research Institute and Departments of Internal Medicine, Taipei Medical University, Taipei 11031, Taiwan; Division of Cardiology and Cardiovascular Research Center, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Chien-Sung Tsai
- Division of Cardiovascular Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; Department and Graduate Institute of Pharmacology, National Defense Medical Center, Taipei 11490, Taiwan; Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow 119991, Russia
| | - Min-Chien Tsai
- Department of Physiology and Biophysics, Graduate Institute of Physiology, National Defense Medical Center, Taipei 11490, Taiwan
| | - Chin-Sheng Lin
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 11490, Taiwan; Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan.
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17
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Gu Y, Zhang Y, Li M, Huang Z, Jiang J, Chen Y, Chen J, Jia Y, Zhang L, Zhou F. Ferulic Acid Ameliorates Atherosclerotic Injury by Modulating Gut Microbiota and Lipid Metabolism. Front Pharmacol 2021; 12:621339. [PMID: 33841148 PMCID: PMC8026864 DOI: 10.3389/fphar.2021.621339] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 01/08/2021] [Indexed: 12/13/2022] Open
Abstract
Atherosclerosis is a leading cause of death worldwide. Recent studies have emphasized the significance of gut microbiota and lipid metabolism in the development of atherosclerosis. Herein, the effects and molecular mechanisms involving ferulic acid (FA) was examined in atherosclerosis using the ApoE-knockout (ApoE-∕-, c57BL/6 background) mouse model. Eighteen male ApoE-/- mice were fed a high-fat diet (HFD) for 12 weeks and then randomly divided into three groups: the model group, the FA (40 mg/kg/day) group and simvastatin (5 mg/kg/day) group. As results, FA could significantly alleviate atherosclerosis and regulate lipid levels in mice. Liver injury and hepatocyte steatosis induced by HFD were also mitigated by FA. FA improved lipid metabolism involving up-regulation of AMPKα phosphorylation and down-regulation of SREBP1 and ACC1 expression. Furthermore, FA induced marked structural changes in the gut microbiota and fecal metabolites and specifically reduced the relative abundance of Fimicutes, Erysipelotrichaceae and Ileibacterium, which were positively correlated with serum lipid levels in atherosclerosis mice. In conclusion, we demonstrate that FA could significantly ameliorate atherosclerotic injury, which may be partly by modulating gut microbiota and lipid metabolism via the AMPKα/SREBP1/ACC1 pathway.
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Affiliation(s)
- Yuyan Gu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yaxin Zhang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Mei Li
- VIP Healthcare Center, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhiyong Huang
- Department of Otolaryngology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Jing Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yihao Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Junqi Chen
- Department of Otolaryngology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Yuhua Jia
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Lihua Zhang
- Department of Gynaecology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Fenghua Zhou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
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18
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Soltani S, Boozari M, Cicero AFG, Jamialahmadi T, Sahebkar A. Effects of phytochemicals on macrophage cholesterol efflux capacity: Impact on atherosclerosis. Phytother Res 2021; 35:2854-2878. [PMID: 33464676 DOI: 10.1002/ptr.6991] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 10/19/2020] [Accepted: 12/11/2020] [Indexed: 12/24/2022]
Abstract
High-density lipoprotein cholesterol (HDL) is the major promoter of reverse cholesterol transport and efflux of excess cellular cholesterol. The functions of HDL, such as cholesterol efflux, are associated with cardiovascular disease rather than HDL levels. We have reviewed the evidence base on the major classes of phytochemicals, including polyphenols, alkaloids, carotenoids, phytosterols, and fatty acids, and their effects on macrophage cholesterol efflux and its major pathways. Phytochemicals show the potential to improve the efficiency of each of these pathways. The findings are mainly in preclinical studies, and more clinical research is warranted in this area to develop novel clinical applications.
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Affiliation(s)
- Saba Soltani
- Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Motahareh Boozari
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Arrigo F G Cicero
- Hypertension and Cardiovascular Risk Factors Research Center, Medical and Surgical Sciences Department, University of Bologna, Bologna, Italy
| | - Tannaz Jamialahmadi
- Department of Food Science and Technology, Quchan Branch, Islamic Azad University, Quchan, Iran.,Department of Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Halal Research Center of IRI, FDA, Tehran, Iran.,Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland
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19
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Yu G, Yang Z, Peng T, Lv Y. Circular RNAs: Rising stars in lipid metabolism and lipid disorders. J Cell Physiol 2020; 236:4797-4806. [PMID: 33275299 DOI: 10.1002/jcp.30200] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/03/2020] [Accepted: 11/23/2020] [Indexed: 02/06/2023]
Abstract
The underlying mechanisms of circular RNAs (circRNAs) in lipid metabolism regulation and the pathogenesis of lipid disorder diseases are clarified in this review. circRNAs are produced from host genes by back splicing and are mainly degraded by RNase L. circRNAs act as molecular sponges or scaffolds that bind with microRNAs or proteins and thus affect the intracorporeal processes of lipid metabolism. CircRNA_11897 and circSAMD4A facilitated adipogenesis while circH19 and circRNA_26852 accelerated adipolysis in adipose tissue. CircSAMD4A promoted the differentiation of preadipocytes, but circH19 and circFUT10 inhibited this differentiation. CircFUT10 also promoted the proliferation of preadipocytes. CiRS-133 fostered the browning of white adipose tissue. CircACC1, circRNA_021412, circRNA_0046366, and circRNA_0046367 promoted the mitochondrial β-oxidation of fatty acids in hepatocytes. CircRNA_021412 suppressed the synthesis of triglycerides in hepatocytes. CircScd1 inhibited hepatic lipid droplet formation. circ_0092317, circ_0003546, circ_0028198, circ_0092317, and circACC1 probably reduced cholesterol efflux from macrophages. circ_0037251 likely promoted lipid accumulation and inhibited lipophagy in macrophages. circRNAs participate in lipid metabolism regulation and affect the development of lipid disorder diseases.
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Affiliation(s)
- Guangli Yu
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang, Hunan, China
| | - Zhou Yang
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang, Hunan, China
| | - Tianhong Peng
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang, Hunan, China
| | - Yuncheng Lv
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang, Hunan, China.,Institute of Basic Medical Sciences & Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China
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20
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LeBlond ND, Ghorbani P, O'Dwyer C, Ambursley N, Nunes JRC, Smith TKT, Trzaskalski NA, Mulvihill EE, Viollet B, Foretz M, Fullerton MD. Myeloid deletion and therapeutic activation of AMPK do not alter atherosclerosis in male or female mice. J Lipid Res 2020; 61:1697-1706. [PMID: 32978273 PMCID: PMC7707174 DOI: 10.1194/jlr.ra120001040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The dysregulation of myeloid-derived cell metabolism can drive atherosclerosis. AMP-activated protein kinase (AMPK) controls various aspects of macrophage dynamics and lipid homeostasis, which are important during atherogenesis. Using LysM-Cre to drive the deletion of both the α1 and α2 catalytic subunits (MacKO), we aimed to clarify the role of myeloid-specific AMPK signaling in male and female mice made acutely atherosclerotic by injection of AAV vector encoding a gain-of-function mutant PCSK9 (PCSK9-AAV) and WD feeding. After 6 weeks of WD feeding, mice received a daily injection of either the AMPK activator A-769662 or a vehicle control for an additional 6 weeks. Following this (12 weeks total), we assessed myeloid cell populations and differences between genotype or sex were not observed. Similarly, aortic sinus plaque size, lipid staining, and necrotic area did not differ in male and female MacKO mice compared with their littermate floxed controls. Moreover, therapeutic intervention with A-769662 showed no treatment effect. There were also no observable differences in the amount of circulating total cholesterol or triglyceride, and only minor differences in the levels of inflammatory cytokines between groups. Finally, CD68+ area and markers of autophagy showed no effect of either lacking AMPK signaling or AMPK activation. Our data suggest that while defined roles for each catalytic AMPK subunit have been identified, complete deletion of myeloid AMPK signaling does not significantly impact atherosclerosis. Additionally, these findings suggest that intervention with the first-generation AMPK activator A-769662 is not able to stem the progression of atherosclerosis.
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Affiliation(s)
- Nicholas D LeBlond
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Peyman Ghorbani
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Conor O'Dwyer
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Nia Ambursley
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Julia R C Nunes
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Tyler K T Smith
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Natasha A Trzaskalski
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Erin E Mulvihill
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Benoit Viollet
- Université de Paris, Institut Cochin, CNRS, INSERM, Paris, France
| | - Marc Foretz
- Université de Paris, Institut Cochin, CNRS, INSERM, Paris, France
| | - Morgan D Fullerton
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada.
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21
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Yamashita Y, Sakakibara H, Toda T, Ashida H. Insights into the potential benefits of black soybean ( Glycine max L.) polyphenols in lifestyle diseases. Food Funct 2020; 11:7321-7339. [PMID: 32852022 DOI: 10.1039/d0fo01092h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Black soybean (Glycine max L.), a cultivar containing abundant polyphenols in its seed coat such as anthocyanins and flavan-3-ols, has been reported to possess various health benefits toward lifestyle diseases. In this review article, the safety evaluation of polyphenol-rich black soybean seed coat extract (BE) and absorption of BE polyphenols are summarized. Additionally, we describe the antioxidant activity of BE polyphenols and their ability to induce antioxidant enzymes. The health benefits of BE and its polyphenols, such as anti-obesity and anti-hyperglycemic activities through the activation of AMP-activated protein kinase and translocation of glucose transporter 4, respectively, are also discussed. Furthermore, we found that black soybean polyphenols were involved in the improvement of vascular function. These emerging data require further investigation in scientific studies and human trials to evaluate the prevention of lifestyle diseases using black soybean polyphenols.
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Affiliation(s)
- Yoko Yamashita
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan.
| | | | - Toshiya Toda
- Department of Innovative Food Sciences, School of Food Sciences and Nutrition, Mukogawa Women's University, Nishinomiya 663-8558, Japan
| | - Hitoshi Ashida
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan.
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22
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Frambach SJCM, de Haas R, Smeitink JAM, Rongen GA, Russel FGM, Schirris TJJ. Brothers in Arms: ABCA1- and ABCG1-Mediated Cholesterol Efflux as Promising Targets in Cardiovascular Disease Treatment. Pharmacol Rev 2020; 72:152-190. [PMID: 31831519 DOI: 10.1124/pr.119.017897] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Atherosclerosis is a leading cause of cardiovascular disease worldwide, and hypercholesterolemia is a major risk factor. Preventive treatments mainly focus on the effective reduction of low-density lipoprotein cholesterol, but their therapeutic value is limited by the inability to completely normalize atherosclerotic risk, probably due to the disease complexity and multifactorial pathogenesis. Consequently, high-density lipoprotein cholesterol gained much interest, as it appeared to be cardioprotective due to its major role in reverse cholesterol transport (RCT). RCT facilitates removal of cholesterol from peripheral tissues, including atherosclerotic plaques, and its subsequent hepatic clearance into bile. Therefore, RCT is expected to limit plaque formation and progression. Cellular cholesterol efflux is initiated and propagated by the ATP-binding cassette (ABC) transporters ABCA1 and ABCG1. Their expression and function are expected to be rate-limiting for cholesterol efflux, which makes them interesting targets to stimulate RCT and lower atherosclerotic risk. This systematic review discusses the molecular mechanisms relevant for RCT and ABCA1 and ABCG1 function, followed by a critical overview of potential pharmacological strategies with small molecules to enhance cellular cholesterol efflux and RCT. These strategies include regulation of ABCA1 and ABCG1 expression, degradation, and mRNA stability. Various small molecules have been demonstrated to increase RCT, but the underlying mechanisms are often not completely understood and are rather unspecific, potentially causing adverse effects. Better understanding of these mechanisms could enable the development of safer drugs to increase RCT and provide more insight into its relation with atherosclerotic risk. SIGNIFICANCE STATEMENT: Hypercholesterolemia is an important risk factor of atherosclerosis, which is a leading pathological mechanism underlying cardiovascular disease. Cholesterol is removed from atherosclerotic plaques and subsequently cleared by the liver into bile. This transport is mediated by high-density lipoprotein particles, to which cholesterol is transferred via ATP-binding cassette transporters ABCA1 and ABCG1. Small-molecule pharmacological strategies stimulating these transporters may provide promising options for cardiovascular disease treatment.
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Affiliation(s)
- Sanne J C M Frambach
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences (S.J.C.M.F., G.A.R., F.G.M.R., T.J.J.S.), Radboud Center for Mitochondrial Medicine (S.J.C.M.F., R.d.H., J.A.M.S., F.G.M.R., T.J.J.S.), Department of Pediatrics (R.d.H., J.A.M.S.), and Department of Internal Medicine, Radboud Institute for Health Sciences (G.A.R.), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ria de Haas
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences (S.J.C.M.F., G.A.R., F.G.M.R., T.J.J.S.), Radboud Center for Mitochondrial Medicine (S.J.C.M.F., R.d.H., J.A.M.S., F.G.M.R., T.J.J.S.), Department of Pediatrics (R.d.H., J.A.M.S.), and Department of Internal Medicine, Radboud Institute for Health Sciences (G.A.R.), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jan A M Smeitink
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences (S.J.C.M.F., G.A.R., F.G.M.R., T.J.J.S.), Radboud Center for Mitochondrial Medicine (S.J.C.M.F., R.d.H., J.A.M.S., F.G.M.R., T.J.J.S.), Department of Pediatrics (R.d.H., J.A.M.S.), and Department of Internal Medicine, Radboud Institute for Health Sciences (G.A.R.), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Gerard A Rongen
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences (S.J.C.M.F., G.A.R., F.G.M.R., T.J.J.S.), Radboud Center for Mitochondrial Medicine (S.J.C.M.F., R.d.H., J.A.M.S., F.G.M.R., T.J.J.S.), Department of Pediatrics (R.d.H., J.A.M.S.), and Department of Internal Medicine, Radboud Institute for Health Sciences (G.A.R.), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frans G M Russel
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences (S.J.C.M.F., G.A.R., F.G.M.R., T.J.J.S.), Radboud Center for Mitochondrial Medicine (S.J.C.M.F., R.d.H., J.A.M.S., F.G.M.R., T.J.J.S.), Department of Pediatrics (R.d.H., J.A.M.S.), and Department of Internal Medicine, Radboud Institute for Health Sciences (G.A.R.), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Tom J J Schirris
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences (S.J.C.M.F., G.A.R., F.G.M.R., T.J.J.S.), Radboud Center for Mitochondrial Medicine (S.J.C.M.F., R.d.H., J.A.M.S., F.G.M.R., T.J.J.S.), Department of Pediatrics (R.d.H., J.A.M.S.), and Department of Internal Medicine, Radboud Institute for Health Sciences (G.A.R.), Radboud University Medical Center, Nijmegen, The Netherlands
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23
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Analysis of Low Molecular Weight Substances and Related Processes Influencing Cellular Cholesterol Efflux. Pharmaceut Med 2020; 33:465-498. [PMID: 31933239 PMCID: PMC7101889 DOI: 10.1007/s40290-019-00308-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Cholesterol efflux is the key process protecting the vascular system from the development of atherosclerotic lesions. Various extracellular and intracellular events affect the ability of the cell to efflux excess cholesterol. To explore the possible pathways and processes that promote or inhibit cholesterol efflux, we applied a combined cheminformatic and bioinformatic approach. We performed a comprehensive analysis of published data on the various substances influencing cholesterol efflux and found 153 low molecular weight substances that are included in the Chemical Entities of Biological Interest (ChEBI) database. Pathway enrichment was performed for substances identified within the Reactome database, and 45 substances were selected in 93 significant pathways. The most common pathways included the energy-dependent processes related to active cholesterol transport from the cell, lipoprotein metabolism and lipid transport, and signaling pathways. The activators and inhibitors of cholesterol efflux were non-uniformly distributed among the different pathways: the substances influencing ‘biological oxidations’ activate cholesterol efflux and the substances influencing ‘Signaling by GPCR and PTK6’ inhibit efflux. This analysis may be used in the search and design of efflux effectors for therapies targeting structural and functional high-density lipoprotein deficiency.
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24
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Xiaolong L, Dongmin G, Liu M, Zuo W, Huijun H, Qiufen T, XueMei H, Wensheng L, Yuping P, Jun L, Zhaolin Z. FGF21 induces autophagy-mediated cholesterol efflux to inhibit atherogenesis via RACK1 up-regulation. J Cell Mol Med 2020; 24:4992-5006. [PMID: 32227589 PMCID: PMC7205825 DOI: 10.1111/jcmm.15118] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 01/28/2020] [Accepted: 02/06/2020] [Indexed: 12/17/2022] Open
Abstract
Fibroblast growth factor 21 (FGF21) acts as an anti‐atherosclerotic agent. However, the specific mechanisms governing this regulatory activity are unclear. Autophagy is a highly conserved cell stress response which regulates atherosclerosis (AS) by reducing lipid droplet degradation in foam cells. We sought to assess whether FGF21 could inhibit AS by regulating cholesterol metabolism in foam cells via autophagy and to elucidate the underlying molecular mechanisms. In this study, ApoE−/− mice were fed a high‐fat diet (HFD) with or without FGF21 and FGF21 + 3‐Methyladenine (3MA) for 12 weeks. Our results showed that FGF21 inhibited AS in HFD‐fed ApoE−/− mice, which was reversed by 3MA treatment. Moreover, FGF21 increased plaque RACK1 and autophagy‐related protein (LC3 and beclin‐1) expression in ApoE−/− mice, thus preventing AS. However, these proteins were inhibited by LV‐RACK1 shRNA injection. Foam cell development is a crucial determinant of AS, and cholesterol efflux from foam cells represents an important defensive measure of AS. In this study, foam cells were treated with FGF21 for 24 hours after a pre‐treatment with 3MA, ATG5 siRNA or RACK1 siRNA. Our results indicated that FGF21‐induced autophagy promoted cholesterol efflux to reduce cholesterol accumulation in foam cells by up‐regulating RACK1 expression. Interestingly, immunoprecipitation results showed that RACK1 was able to activate AMPK and interact with ATG5. Taken together, our results indicated that FGF21 induces autophagy to promote cholesterol efflux and reduce cholesterol accumulation in foam cells through RACK1‐mediated AMPK activation and ATG5 interaction. These results provided new insights into the molecular mechanisms of FGF21 in the treatment of AS.
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Affiliation(s)
- Lin Xiaolong
- Department of Pathology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou City, China
| | - Guo Dongmin
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang City, China
| | - Mihua Liu
- Department of infectious Disease, Centre for Lipid Research & Key Laboratory of Molecular Biology for infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing City, China.,Department of Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou City, China
| | - Wang Zuo
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang City, China
| | - Hu Huijun
- Department of Pathology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou City, China
| | - Tan Qiufen
- Department of Pathology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou City, China
| | - Hu XueMei
- Department of Pathology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou City, China
| | - Lin Wensheng
- Department of Pathology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou City, China
| | - Pan Yuping
- Department of Pathology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou City, China
| | - Lin Jun
- Department of Pathology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou City, China
| | - Zeng Zhaolin
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang City, China.,Department of Cardiology, Nanchuan People's Hospital, Chongqing Medical University, Chongqing City, China
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25
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Castegna A, Gissi R, Menga A, Montopoli M, Favia M, Viola A, Canton M. Pharmacological targets of metabolism in disease: Opportunities from macrophages. Pharmacol Ther 2020; 210:107521. [PMID: 32151665 DOI: 10.1016/j.pharmthera.2020.107521] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/28/2020] [Indexed: 12/12/2022]
Abstract
From advances in the knowledge of the immune system, it is emerging that the specialized functions displayed by macrophages during the course of an immune response are supported by specific and dynamically-connected metabolic programs. The study of immunometabolism is demonstrating that metabolic adaptations play a critical role in modulating inflammation and, conversely, inflammation deeply influences the acquisition of specific metabolic settings.This strict connection has been proven to be crucial for the execution of defined immune functional programs and it is now under investigation with respect to several human disorders, such as diabetes, sepsis, cancer, and autoimmunity. The abnormal remodelling of the metabolic pathways in macrophages is now emerging as both marker of disease and potential target of therapeutic intervention. By focusing on key pathological conditions, namely obesity and diabetes, rheumatoid arthritis, atherosclerosis and cancer, we will review the metabolic targets suitable for therapeutic intervention in macrophages. In addition, we will discuss the major obstacles and challenges related to the development of therapeutic strategies for a pharmacological targeting of macrophage's metabolism.
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Affiliation(s)
- Alessandra Castegna
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy; IBIOM-CNR, Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, Bari, Italy; Fondazione Città della Speranza, Istituto di Ricerca Pediatrica, Padua, Italy.
| | - Rosanna Gissi
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy
| | - Alessio Menga
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy; Department of Molecular Biotechnologies and Health Sciences, University of Turin, Turin, Italy
| | - Monica Montopoli
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua, Italy; Veneto Institute of Molecular Medicine (VIMM), Padua, Italy
| | - Maria Favia
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy
| | - Antonella Viola
- Department of Biomedical Sciences, University of Padua, Italy; Fondazione Città della Speranza, Istituto di Ricerca Pediatrica, Padua, Italy
| | - Marcella Canton
- Department of Biomedical Sciences, University of Padua, Italy; Fondazione Città della Speranza, Istituto di Ricerca Pediatrica, Padua, Italy.
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26
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Molecular mechanism for nobiletin to enhance ABCA1/G1 expression in mouse macrophages. Atherosclerosis 2020; 297:32-39. [DOI: 10.1016/j.atherosclerosis.2020.01.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 01/22/2020] [Accepted: 01/29/2020] [Indexed: 01/22/2023]
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27
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Ou HX, Huang Q, Liu CH, Xiao J, Lv YC, Li X, Lei LP, Mo ZC. Midkine Inhibits Cholesterol Efflux by Decreasing ATP-Binding Membrane Cassette Transport Protein A1 via Adenosine Monophosphate-Activated Protein Kinase/Mammalian Target of Rapamycin Signaling in Macrophages. Circ J 2020; 84:217-225. [DOI: 10.1253/circj.cj-19-0430] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Han-xiao Ou
- Hunan Province Innovative Training Base for Medical Postgraduates, University of South China and Yueyang Women & Children’s Medical Center
- Center for Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University
| | - Qin Huang
- Hunan Province Innovative Training Base for Medical Postgraduates, University of South China and Yueyang Women & Children’s Medical Center
| | - Chu-hao Liu
- Clinical Anatomy & Reproductive Medicine Application Institute, University of South China
| | - Ji Xiao
- Department of Anesthesiology, the Second Affiliated Hospital, University of South China
| | - Yun-cheng Lv
- Hunan Province Innovative Training Base for Medical Postgraduates, University of South China and Yueyang Women & Children’s Medical Center
- Center for Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University
- Clinical Anatomy & Reproductive Medicine Application Institute, University of South China
| | - Xuan Li
- Hunan Province Innovative Training Base for Medical Postgraduates, University of South China and Yueyang Women & Children’s Medical Center
| | - Li-Ping Lei
- Department of Anesthesiology, the Second Affiliated Hospital, University of South China
| | - Zhong-cheng Mo
- Center for Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University
- Clinical Anatomy & Reproductive Medicine Application Institute, University of South China
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28
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Sanches-Silva A, Testai L, Nabavi SF, Battino M, Pandima Devi K, Tejada S, Sureda A, Xu S, Yousefi B, Majidinia M, Russo GL, Efferth T, Nabavi SM, Farzaei MH. Therapeutic potential of polyphenols in cardiovascular diseases: Regulation of mTOR signaling pathway. Pharmacol Res 2020; 152:104626. [PMID: 31904507 DOI: 10.1016/j.phrs.2019.104626] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 12/30/2019] [Accepted: 12/31/2019] [Indexed: 12/12/2022]
Abstract
Cardiovascular diseases comprise of non-communicable disorders that involve the heart and/or blood vessels and have become the leading cause of death worldwide with increased prevalence by age. mTOR is a serine/threonine-specific protein kinase which plays a central role in many physiological processes including cardiovascular diseases, and also integrates various proliferative signals, nutrient and energy abundance and stressful situations. mTOR also acts as central regulator during chronic stress, mitochondrial dysfunction and deregulated autophagy which are associated with senescence. Under oxidative stress, mTOR has been reported to exert protective effects regulating apoptosis and autophagy processes and favoring tissue repair. On the other hand, inhibition of mTOR has been suggested to have beneficial effects against atherosclerosis, cardiac hypertrophy and heart failure, and also in extending the lifespan. In this aspect, the use of drugs or natural compounds, which can target mTOR is an interesting approach in order to reduce the number of deaths caused by cardiovascular disease. In the present review, we intend to shed light on the possible effects and molecular mechanism of natural agents like polyphenols via regulating mTOR.
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Affiliation(s)
- Ana Sanches-Silva
- National Institute for Agricultural and Veterinary Research (INIAV), Vairão, Vila do Conde, Portugal; Center for Study in Animal Science (CECA), ICETA, University of Porto, Porto, Portugal
| | - Lara Testai
- Department of Pharmacy, University of Pisa, via Bonanno 6 - 56126, Pisa, Italy
| | - Seyed Fazel Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Maurizio Battino
- Department of Clinical Sciences, Faculty of Medicine, Polytechnic University of Marche, Ancona, Italy; Nutrition and Food Science Group, Department of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, Vigo, Spain; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, China
| | - Kasi Pandima Devi
- Department of Biotechnology, Alagappa University (Science Campus), Karaikudi 630 003, Tamil Nadu, India
| | - Silvia Tejada
- Laboratory of Neurophysiology, Department of Biology, Institut d'Investigació Sanitària Illes Balears (IdISBa) and CIBEROBN (Physiopathology of Obesity and Nutrition), University of Balearic Islands, Palma de Mallorca, E-07122, Balearic Islands, Spain
| | - Antoni Sureda
- Research Group on Community Nutrition and Oxidative Stress (NUCOX), Institut d'Investigació Sanitària Illes Balears (IdISBa) and CIBEROBN (Physiopathology of Obesity and Nutrition), University of Balearic Islands, Palma de Mallorca, E-07122, Balearic Islands, Spain
| | - Suowen Xu
- University of Rochester, Aab Cardiovascular Research Institute, Rochester, NY, 14623, USA
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Gian Luigi Russo
- Institute of Food Sciences, National Research Council, 83100 Avellino, Italy
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Mohammad Hossein Farzaei
- Pharmaceutical Sciences Research center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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29
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Miki S, Suzuki JI, Kunimura K, Morihara N. Mechanisms underlying the attenuation of chronic inflammatory diseases by aged garlic extract: Involvement of the activation of AMP-activated protein kinase. Exp Ther Med 2019; 19:1462-1467. [PMID: 32010323 PMCID: PMC6966139 DOI: 10.3892/etm.2019.8372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/09/2019] [Indexed: 02/06/2023] Open
Abstract
AMP-activated protein kinase (AMPK) is an ubiquitously expressed serine/threonine kinase and an important regulator of energy metabolism. The decreased activity of AMPK induced by low-grade chronic inflammation has been implicated in several diseases, including type 2 diabetes and atherosclerosis. However, the activation of AMPK by natural and synthetic products can ameliorate these diseases through the inhibition of inflammation. For example, aged garlic extract (AGE) has been shown to enhance the phosphorylation of Thr172 of the α-subunit of AMPK in several tissues of disease model animals. In addition, AGE has been reported to suppress the progression of atherosclerotic plaque formation in an animal model of atherosclerosis. Moreover, AGE has been found to decrease the level of plasma glycated albumin and to improve hyperglycemia in an animal model of type 2 diabetes. These inhibitory effects of AGE are induced by the suppression of the inflammatory response. In the present review, we discuss the mechanisms through which AGE activates AMPK, as well as the mechanisms through which the activation of AMPK by AGE modulates the inflammatory response in disease models.
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Affiliation(s)
- Satomi Miki
- Central Research Institute, Wakunaga Pharmaceutical Co., Ltd., Akitakata-shi, Hiroshima 739-1195, Japan
| | - Jun-Ichiro Suzuki
- Central Research Institute, Wakunaga Pharmaceutical Co., Ltd., Akitakata-shi, Hiroshima 739-1195, Japan
| | - Kayo Kunimura
- Central Research Institute, Wakunaga Pharmaceutical Co., Ltd., Akitakata-shi, Hiroshima 739-1195, Japan
| | - Naoaki Morihara
- Central Research Institute, Wakunaga Pharmaceutical Co., Ltd., Akitakata-shi, Hiroshima 739-1195, Japan.,Research and Development, Wakunaga of America Co., Ltd., Mission Viejo, CA 92691, USA
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30
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Mechanisms and regulation of cholesterol homeostasis. Nat Rev Mol Cell Biol 2019; 21:225-245. [DOI: 10.1038/s41580-019-0190-7] [Citation(s) in RCA: 450] [Impact Index Per Article: 90.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2019] [Indexed: 12/14/2022]
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31
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Liang X, Wang C, Sun Y, Song W, Lin J, Li J, Guan X. p62/mTOR/LXRα pathway inhibits cholesterol efflux mediated by ABCA1 and ABCG1 during autophagy blockage. Biochem Biophys Res Commun 2019; 514:1093-1100. [PMID: 31101336 DOI: 10.1016/j.bbrc.2019.04.134] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 04/18/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Atherosclerosis is a disease characterized by abnormal lipid metabolism, and the formation of foam cells is considered an early event of atherosclerosis. Intracellular cholesterol efflux mediated by ABCA1 and ABCG1 helps to reduce lipid accumulation in foam cells. Related studies have shown that autophagy and mTOR are involved in cholesterol efflux, but the role of p62, an autophagy substrate protein, has not been evaluated. METHODS THP-1 derived macrophages were incubated with ox-LDL to establish a foam cell model and treated with different autophagy inducers. The effects of p62 on cholesterol efflux were investigated using overexpression vectors, gene silencing and western blotting. RESULTS This study showed a blockage of autophagy and decreased expression of ABCA1 and ABCG1 under the stress of excess ox-LDL in a concentration-dependent manner in THP-1 cells. Furthermore, the activation of autophagy led to increased expression of ABCA1 and ABCG1, as well as their upstream transcription factor LXRα, thereby promoting cholesterol efflux from foam cells. We also demonstrated that accumulated p62 played an important role during autophagy blockage, which was achieved by activating mTOR and then inhibited the expression of LXRα and its downstream target proteins ABCA1 and ABCG1. CONCLUSION In conclusion, our experiments demonstrated that a p62/mTOR/LXRα signaling pathway was involved in cholesterol efflux mediated by ABCA1 and ABCG1 when autophagy blockage occurred. Our study offers a rationale for the development of autophagy and p62 as a new target for the treatment of atherosclerosis.
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Affiliation(s)
- Xiaofei Liang
- First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
| | - Chao Wang
- First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
| | - Yan Sun
- First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
| | - Wei Song
- First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
| | - Jing Lin
- First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
| | - Jiashan Li
- First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
| | - Xiuru Guan
- First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
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32
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Feng T, Liu P, Wang X, Luo J, Zuo X, Jiang X, Liu C, Li Y, Li N, Chen M, Zhu N, Han X, Liu C, Xu Y, Si S. SIRT1 activator E1231 protects from experimental atherosclerosis and lowers plasma cholesterol and triglycerides by enhancing ABCA1 expression. Atherosclerosis 2018; 274:172-181. [PMID: 29787963 DOI: 10.1016/j.atherosclerosis.2018.04.039] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 04/18/2018] [Accepted: 04/27/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND AIMS Sirtuin 1 (SIRT1) is a nicotinamide adenine dinucleotide-dependent protein deacetylase. Recent studies have demonstrated that enhancing SIRT1 expression or activity may modulate cholesterol and lipid metabolism. However, pharmacological and molecular regulators for SIRT1 are scarce. Here, we aimed to find novel small molecule modulators of SIRT1 to regulate cholesterol and lipid metabolism. METHODS A high-throughput screening assay was established to identify SIRT1 activators. Surface plasmon resonance and immunoprecipitation were performed to confirm the interaction of E1231 with SIRT1. Cholesterol assay was performed to demonstrate the in vitro effect of E1231. The in vivo effect of E1231 was evaluated in experimental models. RESULTS E1231, a piperazine 1,4-diamide compound, was identified as a SIRT1 activator with EC50 value of 0.83 μM. E1231 interacted with recombinant human SIRT1 protein and deacetylated liver X receptor-alpha (LXRα). E1231 increased ATP-binding cassette transporter A1 (ABCA1) expression in RAW 264.7 cells dependent on SIRT1 and LXRα. E1231 promoted cholesterol efflux and inhibited lipid accumulation in RAW 264.7 cells via SIRT1 and ABCA1. In the golden hamster hyperlipidemia model, E1231 treatment decreased total cholesterol and triglyceride levels in both serum and the liver, while increased cholesterol content in feces. Moreover, E1231 increased ABCA1 and SIRT1 protein expression in the liver. In ApoE-/- mice, E1231 treatment reduced atherosclerotic plaque development compared with untreated ApoE-/- mice. CONCLUSIONS We identified a novel SIRT1 activator E1231 and elucidated its beneficial effects on lipid and cholesterol metabolism. Our study suggests that E1231 might be developed as a novel drug for treating atherosclerosis.
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Affiliation(s)
- Tingting Feng
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China; Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Peng Liu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Xiao Wang
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Jinque Luo
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Xuan Zuo
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Xinhai Jiang
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Chang Liu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Yongzhen Li
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Ni Li
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, CAMS & PUMC, Beijing, 100050, China
| | - Minghua Chen
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Ningyu Zhu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Xiaowan Han
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Chao Liu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China
| | - Yanni Xu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China.
| | - Shuyi Si
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, 100050, China.
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Saenz J, Santa-María C, Reyes-Quiroz ME, Geniz I, Jiménez J, Sobrino F, Alba G. Grapefruit Flavonoid Naringenin Regulates the Expression of LXRα in THP-1 Macrophages by Modulating AMP-Activated Protein Kinase. Mol Pharm 2018; 15:1735-1745. [PMID: 29140707 DOI: 10.1021/acs.molpharmaceut.7b00797] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The present work investigates the modulation of grapefruit flavonoid naringenin over liver X receptor alpha (LXRα) and its target genes in THP-1 macrophages, focusing on AMP-activated protein kinase (AMPK) implication. Naringenin induced LXRα at mRNA and protein levels besides influencing the expression of LXRα target genes ABCA1, ABCG1 (ATP-binding cassette A1 and G1), and SREBP1c (sterol response element binding protein 1c) in THP-1 macrophages. The increased LXRα mRNA and protein expression was reverted when AMPK was inhibited by its chemical inhibitor, compound C or by transfection with AMPK α1 and α2 siRNA. Naringenin treatments were also able to promote reverse cholesterol transport in THP-1 cells, which is in line with the increase in the ABCA1 and ABCG1 expression found. Treatments with this flavonoid also inhibited cell migration in THP-1 cells. In conclusion, LXRα and its target genes are up-regulated by naringenin in an AMPK dependent manner in human macrophages. The enhancement in the expression of genes involved in cholesterol efflux may reveal a new mechanism by which this polyphenol can prevent atherosclerosis and foam cell progression.
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Affiliation(s)
- Javier Saenz
- Departamento de Bioquímica Médica y Biología Molecular , Universidad de Sevilla , 41004 Sevilla , Spain
| | - Consuelo Santa-María
- Departamento de Bioquímica y Biología Molecular , Universidad de Sevilla , 41004 Sevilla , Spain
| | - María Edith Reyes-Quiroz
- Departamento de Bioquímica Médica y Biología Molecular , Universidad de Sevilla , 41004 Sevilla , Spain
| | - Isabel Geniz
- Hospital Nuestra Señora de Valme , Servicio Andaluz de Salud , 41001 Sevilla , Spain
| | - Juan Jiménez
- Departamento de Bioquímica Médica y Biología Molecular , Universidad de Sevilla , 41004 Sevilla , Spain
| | - Francisco Sobrino
- Departamento de Bioquímica Médica y Biología Molecular , Universidad de Sevilla , 41004 Sevilla , Spain
| | - Gonzalo Alba
- Departamento de Bioquímica Médica y Biología Molecular , Universidad de Sevilla , 41004 Sevilla , Spain
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Leng E, Xiao Y, Mo Z, Li Y, Zhang Y, Deng X, Zhou M, Zhou C, He Z, He J, Xiao L, Li J, Li W. Synergistic effect of phytochemicals on cholesterol metabolism and lipid accumulation in HepG2 cells. Altern Ther Health Med 2018; 18:122. [PMID: 29622007 PMCID: PMC5887216 DOI: 10.1186/s12906-018-2189-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 03/26/2018] [Indexed: 12/13/2022]
Abstract
Background Crocin (CRO), chlorogenic acid (CGA), geniposide (GEN), and quercetin (QUE) are all natural compounds with anti-obesity properties, in particular, hypolipidemic effects, which have been widely used for the treatment of obesity-related metabolic diseases. However, it is not yet known whether these compounds interact synergistically. Here, we investigated the effects and molecular mechanisms of CRO, CGA, GEN, QUE, and a combination of all four compounds (CCGQ), on lipid accumulation in human hepatoma (HepG2 cells). Methods The optimal concentration of CRO, CGA, GEN, QUE to stimulate HepG2 cells proliferation was determined using MTT assay. HepG2 cells were pretreated with 10 μmol/L simvastatin, 1 μmol/L CRO, 30 μmol/L CGA, 10 μmol/L GEN, 10 μmol/L QUE, and CCGQ (a combination of 1 μmol/L CRO, 30 μmol/L CGA, 10 μmol/L GEN, and 10 μmol/L QUE) for 24 or 48 h. Oil red O staining and extracellular TC and TG levels were detected. The RT-PCR was used to observe on cholesterol metabolism-related gene expression. Immunocytochemistry and western-blot assayed the 3-hydroxy-3-methylglutaryl-coenzyme (HMGCR) protein expression in HepG2 cells. Results Compared to those of control, we demonstrated that treating HepG2 cells for 48 h with CCGQ resulted in a strong synergistic effect, causing a marked decrease in lipid deposition in comparison to individual treatments, in both triglyceride and total cholesterol (CRO, 5.74- and 1.49-folds; CGA, 3.38- and 1.12-folds; GEN, 4.04- and 1.44-folds; QUE, 3.36- and 1.24-folds; simvastatin, 5.49- and 1.83-folds; and CCGQ, 7.75- and 2.20-folds), and Oil red O staining assays. In addition, CCGQ treatment increased ATP-binding cassette transporter (ABCA1), cholesterol 7α-hydroxylase (CYP7A1), and AMP-activated protein kinase 2α (AMPKα2) mRNA expression, while decreasing sterol regulatory element binding protein 2 (SREBP2), and liver X receptor alpha (LXRα) mRNA expression. Notably, CCGQ was more effective in decreasing HMGCR expression than the individual treatments. Conclusion The CCGQ combination has potential, both as a complementary therapy for hyperlipemia, and in preventing further obesity-related complications.
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Zhu T, Corraze G, Plagnes-Juan E, Quillet E, Dupont-Nivet M, Skiba-Cassy S. Regulation of genes related to cholesterol metabolism in rainbow trout (Oncorhynchus mykiss) fed a plant-based diet. Am J Physiol Regul Integr Comp Physiol 2017; 314:R58-R70. [PMID: 28931545 DOI: 10.1152/ajpregu.00179.2017] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
When compared with fish meal and fish oil, plant ingredients differ not only in their protein content and amino acid and fatty acid profiles but are also devoid of cholesterol, the major component of cell membrane and precursor of several bioactive compounds. Based on these nutritional characteristics, plant-based diets can affect fish physiology and cholesterol metabolism. To investigate the mechanisms underlying cholesterol homeostasis, rainbow trout were fed from 1 g body wt for 6 mo with a totally plant-based diet (V), a marine diet (M), and a marine-restricted diet (MR), with feed intake adjusted to that of the V group. The expression of genes involved in cholesterol synthesis, esterification, excretion, bile acid synthesis, and cholesterol efflux was measured in liver. Results showed that genes involved in cholesterol synthesis were upregulated in trout fed the V diet, whereas expression of genes related to bile acid synthesis ( cyp7a1) and cholesterol elimination ( abcg8) were reduced. Feeding trout the V diet also enhanced the expression of srebp-2 while reducing that of lxrα and miR-223. Overall, these data suggested that rainbow trout coped with the altered nutritional characteristics and absence of dietary cholesterol supply by increasing cholesterol synthesis and limiting cholesterol efflux through molecular mechanisms involving at least srebp-2, lxrα, and miR-223. However, plasma and body cholesterol levels in trout fed the V diet were lower than in fish fed the M diet, raising the question of the role of cholesterol in the negative effect of plant-based diet on growth.
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Affiliation(s)
- Tengfei Zhu
- Institut National de la Recherche Agronomique, Unité Mixte de Recherche, Joint Research Unit 1419, Nutrition Métabolisme Aquaculture, Saint Pée-sur-Nivelle, France
| | - Geneviève Corraze
- Institut National de la Recherche Agronomique, Unité Mixte de Recherche, Joint Research Unit 1419, Nutrition Métabolisme Aquaculture, Saint Pée-sur-Nivelle, France
| | - Elisabeth Plagnes-Juan
- Institut National de la Recherche Agronomique, Unité Mixte de Recherche, Joint Research Unit 1419, Nutrition Métabolisme Aquaculture, Saint Pée-sur-Nivelle, France
| | - Edwige Quillet
- Génétique Animale et Biologie Intégrative, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Mathilde Dupont-Nivet
- Génétique Animale et Biologie Intégrative, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Sandrine Skiba-Cassy
- Institut National de la Recherche Agronomique, Unité Mixte de Recherche, Joint Research Unit 1419, Nutrition Métabolisme Aquaculture, Saint Pée-sur-Nivelle, France
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Bories GFP, Leitinger N. Macrophage metabolism in atherosclerosis. FEBS Lett 2017; 591:3042-3060. [DOI: 10.1002/1873-3468.12786] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/04/2017] [Accepted: 08/04/2017] [Indexed: 01/05/2023]
Affiliation(s)
- Gael F. P. Bories
- Department of Pharmacology and Robert M. Berne Cardiovascular Research Center; University of Virginia; Charlottsville VA USA
| | - Norbert Leitinger
- Department of Pharmacology and Robert M. Berne Cardiovascular Research Center; University of Virginia; Charlottsville VA USA
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Abstract
The AMP-activated protein kinase (AMPK) is a central regulator of multiple metabolic pathways and may have therapeutic importance for treating obesity, insulin resistance, type 2 diabetes (T2D), non-alcoholic fatty liver disease (NAFLD), and cardiovascular disease (CVD). Given the ubiquitous expression of AMPK, it has been a challenge to evaluate which tissue types may be most beneficially poised for mediating the positive metabolic effects of AMPK-centered treatments. In this review we evaluate the metabolic phenotypes of transgenic mouse models in which AMPK expression and function have been manipulated, and the impact this has on controlling lipid metabolism, glucose homeostasis, and inflammation. This information may be useful for guiding the development of AMPK-targeted therapeutics to treat chronic metabolic diseases.
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Affiliation(s)
- Emily A Day
- Department of Medicine, McMaster University, 1280 Main Street West, Hamilton, ON, Canada
| | - Rebecca J Ford
- Department of Medicine, McMaster University, 1280 Main Street West, Hamilton, ON, Canada
| | - Gregory R Steinberg
- Department of Medicine, McMaster University, 1280 Main Street West, Hamilton, ON, Canada; Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON, Canada.
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Salminen A, Kaarniranta K, Kauppinen A. Regulation of longevity by FGF21: Interaction between energy metabolism and stress responses. Ageing Res Rev 2017; 37:79-93. [PMID: 28552719 DOI: 10.1016/j.arr.2017.05.004] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 03/28/2017] [Accepted: 05/18/2017] [Indexed: 12/11/2022]
Abstract
Fibroblast growth factor 21 (FGF21) is a hormone-like member of FGF family which controls metabolic multiorgan crosstalk enhancing energy expenditure through glucose and lipid metabolism. In addition, FGF21 acts as a stress hormone induced by endoplasmic reticulum stress and dysfunctions of mitochondria and autophagy in several tissues. FGF21 also controls stress responses and metabolism by modulating the functions of somatotropic axis and hypothalamic-pituitary-adrenal (HPA) pathway. FGF21 is a potent longevity factor coordinating interactions between energy metabolism and stress responses. Recent studies have revealed that FGF21 treatment can alleviate many age-related metabolic disorders, e.g. atherosclerosis, obesity, type 2 diabetes, and some cardiovascular diseases. In addition, transgenic mice overexpressing FGF21 have an extended lifespan. However, chronic metabolic and stress-related disorders involving inflammatory responses can provoke FGF21 resistance and thus disturb healthy aging process. First, we will describe the role of FGF21 in interorgan energy metabolism and explain how its functions as a stress hormone can improve healthspan. Next, we will examine both the induction of FGF21 expression via the integrated stress response and the molecular mechanism through which FGF21 enhances healthy aging. Finally, we postulate that FGF21 resistance, similarly to insulin resistance, jeopardizes human healthspan and accelerates the aging process.
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Liu Q, Zhang H, Lin J, Zhang R, Chen S, Liu W, Sun M, Du W, Hou J, Yu B. C1q/TNF-related protein 9 inhibits the cholesterol-induced Vascular smooth muscle cell phenotype switch and cell dysfunction by activating AMP-dependent kinase. J Cell Mol Med 2017; 21:2823-2836. [PMID: 28524645 PMCID: PMC5661105 DOI: 10.1111/jcmm.13196] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 03/18/2017] [Indexed: 01/05/2023] Open
Abstract
Vascular smooth muscle cells (VSMCs) switch to macrophage‐like cells after cholesterol loading, and this change may play an important role in the progression of atherosclerosis. C1q/TNF‐related protein 9 (CTRP9) is a recently discovered adipokine that has been shown to have beneficial effects on glucose metabolism and vascular function, particularly in regard to cardiovascular disease. The question of whether CTRP9 can protect VSMCs from cholesterol damage has not been addressed. In this study, the impact of CTRP9 on cholesterol‐damaged VSMCs was observed. Our data show that in cholesterol‐treated VSMCs, CTRP9 significantly reversed the cholesterol‐induced increases in pro‐inflammatory factor secretion, monocyte adhesion, cholesterol uptake and expression of the macrophage marker CD68. Meanwhile, CTRP9 prevented the cholesterol‐induced activation of the TLR4–MyD88–p65 pathway and upregulated the expression of proteins important for cholesterol efflux. Mechanistically, as siRNA‐induced selective gene ablation of AMPKα1 abolished these effects of CTRP9, we concluded that CTRP9 achieves these protective effects in VSMCs through the AMP‐dependent kinase (AMPK) pathway.
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Affiliation(s)
- Qi Liu
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hui Zhang
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiale Lin
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ruoxi Zhang
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shuyuan Chen
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Liu
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Meng Sun
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wenjuan Du
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jingbo Hou
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bo Yu
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, China.,Division Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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