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Pan W, Zhang J, Zhang L, Zhang Y, Song Y, Han L, Tan M, Yin Y, Yang T, Jiang T, Li H. Comprehensive view of macrophage autophagy and its application in cardiovascular diseases. Cell Prolif 2024; 57:e13525. [PMID: 37434325 PMCID: PMC10771119 DOI: 10.1111/cpr.13525] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/17/2023] [Accepted: 06/22/2023] [Indexed: 07/13/2023] Open
Abstract
Cardiovascular diseases (CVDs) are the primary drivers of the growing public health epidemic and the leading cause of premature mortality and economic burden worldwide. With decades of research, CVDs have been proven to be associated with the dysregulation of the inflammatory response, with macrophages playing imperative roles in influencing the prognosis of CVDs. Autophagy is a conserved pathway that maintains cellular functions. Emerging evidence has revealed an intrinsic connection between autophagy and macrophage functions. This review focuses on the role and underlying mechanisms of autophagy-mediated regulation of macrophage plasticity in polarization, inflammasome activation, cytokine secretion, metabolism, phagocytosis, and the number of macrophages. In addition, autophagy has been shown to connect macrophages and heart cells. It is attributed to specific substrate degradation or signalling pathway activation by autophagy-related proteins. Referring to the latest reports, applications targeting macrophage autophagy have been discussed in CVDs, such as atherosclerosis, myocardial infarction, heart failure, and myocarditis. This review describes a novel approach for future CVD therapies.
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Affiliation(s)
- Wanqian Pan
- Department of CardiologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Jun Zhang
- Department of CardiologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Lei Zhang
- Department of CardiologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Yue Zhang
- Department of CardiologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Yiyi Song
- Suzhou Medical College of Soochow UniversitySuzhouChina
| | - Lianhua Han
- Department of CardiologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Mingyue Tan
- Department of CardiologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Yunfei Yin
- Department of CardiologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Tianke Yang
- Department of Ophthalmology, Eye Institute, Eye & ENT HospitalFudan UniversityShanghaiChina
- Department of OphthalmologyThe First Affiliated Hospital of USTC, University of Science and Technology of ChinaHefeiChina
| | - Tingbo Jiang
- Department of CardiologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Hongxia Li
- Department of CardiologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
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Shen P, Gao J, Huang S, You C, Wang H, Chen P, Yao T, Gao T, Zhou B, Shen S, Zhao X, Ma J. LncRNA AC006064.4-201 serves as a novel molecular marker in alleviating cartilage senescence and protecting against osteoarthritis by destabilizing CDKN1B mRNA via interacting with PTBP1. Biomark Res 2023; 11:39. [PMID: 37055817 PMCID: PMC10099822 DOI: 10.1186/s40364-023-00477-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/20/2023] [Indexed: 04/15/2023] Open
Abstract
BACKGROUND Osteoarthritis (OA) is the most prevalent age-related disease in the world. Chondrocytes undergo an age-dependent decline in their proliferation and synthetic capacity, which is the main cause of OA development. However, the intrinsic mechanism of chondrocyte senescence is still unclear. This study aimed to investigate the role of a novel long non-coding RNA (lncRNA), AC006064.4-201 in the regulation of chondrocyte senescence and OA progression and to elucidate the underlying molecular mechanisms. METHODS The function of AC006064.4-201 in chondrocytes was assessed using western blotting, quantitative real-time polymerase chain reaction (qRT-PCR), immunofluorescence (IF) and β-galactosidase staining. The interaction between AC006064.4-201 and polypyrimidine tract-binding protein 1 (PTBP1), as well as cyclin-dependent kinase inhibitor 1B (CDKN1B), was evaluated using RPD-MS, fluorescence in situ hybridization (FISH), RNA immunoprecipitation (RIP) and RNA pull-down assays. Mice models were used to investigate the role of AC006064.4-201 in post-traumatic and age-related OA in vivo. RESULTS Our research revealed that AC006064.4-201 was downregulated in senescent and degenerated human cartilage, which could alleviate senescence and regulate metabolism in chondrocytes. Mechanically, AC006064.4-201 directly interacts with PTBP1 and blocks the binding between PTBP1 and CDKN1B mRNA, thereby destabilizing CDKN1B mRNA and decreasing the translation of CDKN1B. The in vivo experiments were consistent with the results of the in vitro experiments. CONCLUSIONS The AC006064.4-201/PTBP1/CDKN1B axis plays an important role in OA development and provides new molecular markers for the early diagnosis and treatment of OA in the future. Schematic diagram of AC006064.4-201 mechanism. A schematic diagram of the mechanism underlying the effect of AC006064.4-201.
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Affiliation(s)
- Panyang Shen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Jun Gao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Shaohan Huang
- Department of Endocrinology, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Chenan You
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Haitao Wang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Pengyu Chen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Teng Yao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Tianyou Gao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Bohao Zhou
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Shuying Shen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China.
- Department of Endocrinology, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China.
| | - Xing Zhao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China.
- Department of Endocrinology, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China.
| | - Jianjun Ma
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China.
- Department of Endocrinology, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China.
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Zhang X, Wang C, He D, Cheng Y, Yu L, Qi D, Li B, Zheng F. Identification of DNA methylation-regulated genes as potential biomarkers for coronary heart disease via machine learning in the Framingham Heart Study. Clin Epigenetics 2022; 14:122. [PMID: 36180886 PMCID: PMC9526342 DOI: 10.1186/s13148-022-01343-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/25/2022] [Indexed: 11/10/2022] Open
Abstract
Background DNA methylation-regulated genes have been demonstrated as the crucial participants in the occurrence of coronary heart disease (CHD). The machine learning based on DNA methylation-regulated genes has tremendous potential for mining non-invasive predictive biomarkers and exploring underlying new mechanisms of CHD. Results First, the 2085 age-gender-matched individuals in Framingham Heart Study (FHS) were randomly divided into training set and validation set. We then integrated methylome and transcriptome data of peripheral blood leukocytes (PBLs) from the training set to probe into the methylation and expression patterns of CHD-related genes. A total of five hub DNA methylation-regulated genes were identified in CHD through dimensionality reduction, including ATG7, BACH2, CDKN1B, DHCR24 and MPO. Subsequently, methylation and expression features of the hub DNA methylation-regulated genes were used to construct machine learning models for CHD prediction by LightGBM, XGBoost and Random Forest. The optimal model established by LightGBM exhibited favorable predictive capacity, whose AUC, sensitivity, and specificity were 0.834, 0.672, 0.864 in the validation set, respectively. Furthermore, the methylation and expression statuses of the hub genes were verified in monocytes using methylation microarray and transcriptome sequencing. The methylation statuses of ATG7, DHCR24 and MPO and the expression statuses of ATG7, BACH2 and DHCR24 in monocytes of our study population were consistent with those in PBLs from FHS. Conclusions We identified five DNA methylation-regulated genes based on a predictive model for CHD using machine learning, which may clue the new epigenetic mechanism for CHD. Supplementary Information The online version contains supplementary material available at 10.1186/s13148-022-01343-2.
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Affiliation(s)
- Xiaokang Zhang
- Center for Gene Diagnosis and Department of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Donghu Road 169, Wuhan, 430071, China
| | - Chen Wang
- Center for Gene Diagnosis and Department of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Donghu Road 169, Wuhan, 430071, China
| | - Dingdong He
- Center for Gene Diagnosis and Department of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Donghu Road 169, Wuhan, 430071, China.,Department of Clinical Laboratory Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yating Cheng
- Center for Gene Diagnosis and Department of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Donghu Road 169, Wuhan, 430071, China
| | - Li Yu
- Center for Gene Diagnosis and Department of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Donghu Road 169, Wuhan, 430071, China
| | - Daoxi Qi
- Center for Gene Diagnosis and Department of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Donghu Road 169, Wuhan, 430071, China
| | - Boyu Li
- Center for Gene Diagnosis and Department of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Donghu Road 169, Wuhan, 430071, China
| | - Fang Zheng
- Center for Gene Diagnosis and Department of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Donghu Road 169, Wuhan, 430071, China.
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Zhang M, Che C, Cheng J, Li P, Yang Y. Ion channels in stem cells and their roles in stem cell biology and vascular diseases. J Mol Cell Cardiol 2022; 166:63-73. [PMID: 35143836 DOI: 10.1016/j.yjmcc.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/11/2022] [Accepted: 02/01/2022] [Indexed: 10/19/2022]
Abstract
Stem cell therapy may be a promising option for the treatment of vascular diseases. In recent years, significant progress has been made in stem cell research, especially in the mechanism of stem cell activation, homing and differentiation in vascular repair and reconstruction. Current research on stem cells focuses on protein expression and transcriptional networks. Ion channels are considered to be the basis for the generation of bioelectrical signals, which control the proliferation, differentiation and migration of various cell types. Although heterogeneity of multiple ion channels has been found in different types of stem cells, it is unclear whether the heterogeneous expression of ion channels is related to different cell subpopulations and/or different stages of the cell cycle. There is still a long way to go in clinical treatment by using the regulation of stem cell ion channels. In this review, we reviewed the main ion channels found on stem cells, their expression and function in stem cell proliferation, differentiation and migration, and the research status of stem cells' involvement in vascular diseases.
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Affiliation(s)
- Min Zhang
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, 319 Zhongshan Road, Luzhou 646000, China
| | - Chang Che
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, 319 Zhongshan Road, Luzhou 646000, China
| | - Jun Cheng
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, 319 Zhongshan Road, Luzhou 646000, China
| | - Pengyun Li
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, 319 Zhongshan Road, Luzhou 646000, China.
| | - Yan Yang
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, 319 Zhongshan Road, Luzhou 646000, China.
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Abstract
PURPOSE OF REVIEW Macrophage accumulation within atherosclerotic plaque is a primary driver of disease progression. However, recent advances in both phenotypic and functional heterogeneity of these cells have allowed for improved insight into potential regulation of macrophage function within lesions. In this review, we will discuss recent insights on macrophage heterogeneity, lipid processing, metabolism, and proliferation in atherosclerosis. Furthermore, we will identify outstanding questions in the field that are pertinent to future studies. RECENT FINDINGS With the recent development of single-cell RNA sequencing, several studies have highlighted the diverse macrophage populations within plaques, including pro-inflammatory, anti-inflammatory, lipid loaded and tissue resident macrophages. Furthermore, new data has suggested that differential activation of metabolic pathways, including glycolysis and fatty acid oxidation, may play a key role in determining function. Recent works have highlighted that different populations retain varying capacity to undergo proliferation; regulating the proliferation pathway may be highly effective in reducing plaque in advanced lesions. SUMMARY Macrophage populations within atherosclerosis are highly heterogeneous; differences in cytokine production, lipid handling, metabolism, and proliferation are seen between subpopulations. Understanding the basic cellular mechanisms that drive this heterogeneity will allow for the development of highly specific disease modulating agents to combat atherosclerosis.
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Affiliation(s)
| | - Jesse W Williams
- Center for Immunology
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis, Minnesota, USA
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Lin H, Xu WS, Liu XW, Wang Z, Yan J, Zhang T. Macrophages induce the expression of lncRNA ATB via the secretion of TGF-β to relieve ischemia-reperfusion injury in cardiomyocytes. Exp Ther Med 2021; 22:910. [PMID: 34306184 PMCID: PMC8281357 DOI: 10.3892/etm.2021.10342] [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: 07/22/2020] [Accepted: 12/01/2020] [Indexed: 12/02/2022] Open
Abstract
Cardiac ischemia-reperfusion can cause severe damage to cardiomyocytes. Previous studies have revealed that TGF-β can alleviate ischemia-reperfusion injury in cardiomyocytes by inducing the expression of long non-coding RNA (lncRNA) activated by TGF-β (ATB). However, M2 macrophages can secrete a large amount of TGF-β. However, whether M2 macrophages alleviate the ischemia-reperfusion-induced injury of cardiomyocytes by secreting TGF-β is unclear. In the present study, macrophages and cardiomyocytes were cultured under oxygen-glucose deprivation/reoxygenation (OGD/R) conditions to simulate ischemia-reperfusion injury. M2-type macrophage markers (IL-10, Arginase-1 and IL-13) were validated using reverse transcription-quantitative PCR and western blotting. Subsequently, the culture medium of M2-type macrophages was collected for the treatment of cardiomyocytes, which were cultured under OGD/R conditions. The levels of inflammatory factors and oxidase enzymes were detected with ELISA. The apoptotic rates of cardiomyocytes were detected by flow cytometry. The expression of cell apoptosis-related proteins and the phosphorylation levels of NF-κB were analyzed by western blotting. The expression levels of specific inflammatory cytokines and the levels of malondialdehyde and lactate dehydrogenase were suppressed in cardiomyocytes following treatment with culture medium derived from M2-type macrophages, which were cultured under OGD/R conditions. Furthermore, OGD/R-induced apoptosis of cardiomyocytes was also relieved following treatment of the cells with macrophage medium. It was found that M2-type macrophages could secrete TGF-β and that the culture medium of M2-type macrophages could activate the expression of lncRNA ATB in cardiomyocytes. TGF-β secreted by M2 macrophages relieved the inflammatory response, oxidative stress and apoptosis of cardiomyocytes by inducing the expression of lncRNA ATB.
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Affiliation(s)
- Hong Lin
- Department of Functional Diagnosis, Central South University Xiangya School of Medicine Affiliated Haikou Hospital, Haikou, Hainan 570208, P.R. China
| | - Wen-Sheng Xu
- Department of Orthopedics, The First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014040, P.R. China
| | - Xiong-Wei Liu
- Department of Immunology, Basic and Forensic Medicine of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014040, P.R. China
| | - Zhi Wang
- Department of Immunology, Basic and Forensic Medicine of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014040, P.R. China
| | - Jiao Yan
- Department of Immunology, Basic and Forensic Medicine of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014040, P.R. China
| | - Tao Zhang
- Department of Immunology, Basic and Forensic Medicine of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014040, P.R. China
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Sato A, Unuma H, Ebina K. Royal Jelly Proteins Inhibit Macrophage Proliferation: Interactions with Native- and Oxidized-Low Density Lipoprotein. Protein J 2021; 40:699-708. [PMID: 34008140 DOI: 10.1007/s10930-021-09998-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2021] [Indexed: 11/26/2022]
Abstract
Macrophage proliferation is known to correlate with macrophage accumulation in atherosclerotic plaque, and therefore its inhibition and secondary reduction of plaque inflammation may have therapeutic beneficial effects on atherosclerosis. Recently, we reported that a peptide corresponding to positions 41-51 of royalisin (which consists of 51 amino acid residues), a potent antibacterial protein contained in royal jelly (RJ), can specifically bind to oxidized LDL (Ox-LDL), a major components of atherosclerotic lesions. Here, we investigated the interaction of RJ proteins including royalisin with LDL and Ox-LDL. Measurement of LDL oxidation by the production of thiobarbituric acid reactive substances and conjugated dienes, and by electrophoretic mobility on polyacrylamide gel electrophoresis showed that RJ proteins including royalisin and the degradation products of major RJ protein (MRJP) 1 and MRJP3 can induce oxidation of LDL and Ox-LDL. Surface plasmon resonance experiments showed that these RJ proteins can exhibit much higher binding affinity to LDL than Ox-LDL (the equilibrium dissociation constant, KD = 8.35 and 49.65 μg proteins/mL for LDL and Ox-LDL, respectively). Experiments using cultured mouse J774A.1 macrophage cells proved that these RJ proteins can inhibit macrophage proliferation markedly and concentration-dependently, regardless of the absence or presence of LDL and Ox-LDL, but hardly affect lipid accumulation in macrophages. These results suggest that RJ proteins including royalisin and degradation products of MRJP1/MRJP3 may have therapeutic beneficial effects on atherosclerosis owing to the reduction of plaque inflammation. Further studies of these RJ proteins may lead to the discovery of novel anti-atherosclerotic drugs.
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Affiliation(s)
- Akira Sato
- Faculty of Pharmacy, Iryo Sosei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima, 970-8551, Japan.
- Graduate School of Life Science and Engineering, Iryo Sosei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima, 970-8551, Japan.
| | - Hiroto Unuma
- Faculty of Pharmacy, Iryo Sosei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima, 970-8551, Japan
| | - Keiichi Ebina
- Faculty of Pharmacy, Iryo Sosei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima, 970-8551, Japan
- Graduate School of Life Science and Engineering, Iryo Sosei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima, 970-8551, Japan
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Zang X, Cheng M, Zhang X, Chen X. Targeting macrophages using nanoparticles: a potential therapeutic strategy for atherosclerosis. J Mater Chem B 2021; 9:3284-3294. [PMID: 33881414 DOI: 10.1039/d0tb02956d] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Atherosclerosis is one of the leading causes of vascular diseases, with high morbidity and mortality worldwide. Macrophages play a critical role in the development and local inflammatory responses of atherosclerosis, contributing to plaque rupture and thrombosis. Considering their central roles, macrophages have gained considerable attention as a therapeutic target to attenuate atherosclerotic progression and stabilize existing plaques. Nanoparticle-based delivery systems further provide possibilities to selectively and effectively deliver therapeutic agents into intraplaque macrophages. Although challenges are numerous and clinical application is still distant, the design and development of macrophage-targeting nanoparticles will generate new knowledge and experiences to improve therapeutic outcomes and minimize toxicity. Hence, the review aims to discuss various strategies for macrophage modulation and the development and evaluation of macrophage targeting nanomedicines for anti-atherosclerosis.
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Affiliation(s)
- Xinlong Zang
- School of Basic Medicine, Qingdao University, Ningxia Road 308, Qingdao, P. R. China.
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Wu H, Zhou X, Gong H, Ni Z, Xu Q. Perivascular tissue stem cells are crucial players in vascular disease. Free Radic Biol Med 2021; 165:324-333. [PMID: 33556462 DOI: 10.1016/j.freeradbiomed.2021.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/31/2021] [Accepted: 02/01/2021] [Indexed: 12/21/2022]
Abstract
Perivascular tissue including adipose layer and adventitia have been considered to play pivotal roles in vascular development and disease progression. Recent studies showed that abundant stem/progenitorcells (SPCs) are present in perivascular tissues. These SPCs exhibit capability to proliferate and differentiate into specific terminal cells. Adult perivascular SPCs are quiescent in normal condition, once activated by specific molecules (e.g., cytokines), they migrate toward the lumen side where they differentiate into both smooth muscle cells (SMCs) and endothelial cells (ECs), thus promoting intima hyperplasia or endothelial regeneration. In addition, perivascular SPCs can also regulate vascular diseases via other ways including but not limited to paracrine effects, matrix protein modulation and microvessel formation. Perivascular SPCs have also been shown to possess therapeutic potentials due to the capability to differentiate into vascular cells and regenerate vascular structures. This review summarizes current knowledge on resident SPCs features and discusses the potential benefits of SPCs therapy in vascular diseases.
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Affiliation(s)
- Hong Wu
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Xuhao Zhou
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Hui Gong
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Zhichao Ni
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, China.
| | - Qingbo Xu
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, China.
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Morita Y, Senokuchi T, Yamada S, Wada T, Furusho T, Matsumura T, Ishii N, Nishida S, Nishida S, Motoshima H, Komohara Y, Yamagata K, Araki E. Impact of tissue macrophage proliferation on peripheral and systemic insulin resistance in obese mice with diabetes. BMJ Open Diabetes Res Care 2020; 8:8/1/e001578. [PMID: 33087339 PMCID: PMC7580054 DOI: 10.1136/bmjdrc-2020-001578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 08/06/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Obesity-related insulin resistance is a widely accepted pathophysiological feature in type 2 diabetes. Systemic metabolism and immunity are closely related, and obesity represents impaired immune function that predisposes individuals to systemic chronic inflammation. Increased macrophage infiltration and activation in peripheral insulin target tissues in obese subjects are strongly related to insulin resistance. Using a macrophage-specific proliferation inhibition mouse model (mac-p27Tg), we previously reported that suppressed plaque inflammation reduced atherosclerosis and improved plaque stabilization. However, the direct evidence that proliferating macrophages are responsible for inducing insulin resistance was not provided. RESEARCH DESIGN AND METHODS The mac-p27Tg mice were fed a high-fat diet, and glucose metabolism, histological changes, macrophage polarization, and tissue functions were investigated to reveal the significance of tissue macrophage proliferation in insulin resistance and obesity. RESULTS The mac-p27Tg mice showed improved glucose tolerance and insulin sensitivity, along with a decrease in the number and ratio of inflammatory macrophages. Obesity-induced inflammation and oxidative stress was attenuated in white adipose tissue, liver, and gastrocnemius. Histological changes related to insulin resistance, such as liver steatosis/fibrosis, adipocyte enlargement, and skeletal muscle fiber transformation to fast type, were ameliorated in mac-p27Tg mice. Serum tumor necrosis factor alpha and free fatty acid were decreased, which might partially impact improved insulin sensitivity and histological changes. CONCLUSIONS Macrophage proliferation in adipose tissue, liver, and skeletal muscle was involved in promoting the development of systemic insulin resistance. Controlling the number of tissue macrophages by inhibiting macrophage proliferation could be a therapeutic target for insulin resistance and type 2 diabetes.
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Affiliation(s)
- Yutaro Morita
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Takafumi Senokuchi
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Sarie Yamada
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Toshiaki Wada
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Tatsuya Furusho
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Takeshi Matsumura
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Norio Ishii
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Saiko Nishida
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Syuhei Nishida
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Hiroyuki Motoshima
- Department of Metabolic Medicine and Endocrinology, Kikuchi Medical Association Hospital, Kikuchi, Kumamoto, Japan
| | - Yoshihiro Komohara
- Cell Pathology Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Kazuya Yamagata
- Medical Biochemistry, Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Eiichi Araki
- Department of Metabolic Medicine Faculty of Life Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
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Xiong X, Lu W, Zhang K, Zhou W. Pterostilbene reduces endothelial cell apoptosis by regulation of the Nrf2-mediated TLR-4/MyD88/NF-κB pathway in a rat model of atherosclerosis. Exp Ther Med 2020; 20:2090-2098. [PMID: 32782521 PMCID: PMC7401285 DOI: 10.3892/etm.2020.8923] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 12/20/2019] [Indexed: 12/13/2022] Open
Abstract
Endothelial cell injury in vascular arterial walls plays a crucial role in the pathological process of atherosclerosis. Pterostilbene, a stilbenoid chemically related to resveratrol, has anti-inflammatory, anti-apoptosis and antioxidant properties. However, the underlying mechanisms mediated by pterostilbene in regards to endothelial cell injury in vascular arterial walls are not fully understood. The purpose of the present study was to investigate the benefits of pterostilbene in a rat model of atherosclerosis. The possible mechanism of pterostilbene was also analyzed in regards to endothelial cell injury in vascular arterial walls in vitro. A rat model of atherosclerosis was established using endothelial injury of the iliac arteries. CCK-8 assay, TUNEL, immunofluorescence, western blot analysis and hematoxylin and eosin (H&E) staining were used to analyze the role of pterostilbene in the pathological processes of atherosclerosis. In vivo results showed that pterostilbene decreased cholesterol (CHO), high-density lipoprotein cholesterol (HDL-C), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C) in plasma and attenuated interleukin (IL)-1, tumor necrosis factor (TNF)-α and IL-6 and oxidative stress injury in serum in the experimental animals. Pterostilbene treatment reduced atherogenesis, aortic plaques, macrophage infiltration and apoptosis of vascular arterial walls in the atherosclerosis rat model. In vitro assay demonstrated that pterostilbene administration increased viability of the endothelial cells, attenuated oxidative stress injury and apoptosis of endothelial cells. The results found that pterostilbene regulated endothelial cell apoptosis via the Nrf2-mediated TLR-4/MyD88/NF-κB pathway. In conclusion, data from the present study revealed that pterostilbene protects rats against atherosclerosis by regulation of the Nrf2-mediated TLR-4/MyD88/NF-κB pathway.
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Affiliation(s)
- Xiaowei Xiong
- Department of General Surgery, Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Weihang Lu
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Kaihua Zhang
- Department of General Surgery, Jiujiang No. 1 People's Hospital, Jiujiang, Jiangxi 332001, P.R. China
| | - Weimin Zhou
- Department of Vascular Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
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12
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Nishida S, Matsumura T, Senokuchi T, Murakami-Nishida S, Ishii N, Morita Y, Yagi Y, Motoshima H, Kondo T, Araki E. Inhibition of inflammation-mediated DPP-4 expression by linagliptin increases M2 macrophages in atherosclerotic lesions. Biochem Biophys Res Commun 2020; 524:8-15. [PMID: 31964532 DOI: 10.1016/j.bbrc.2020.01.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 01/06/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Dipeptidyl peptidase-4 (DPP-4) inhibitors have been reported to suppress atherosclerosis progression in atherosclerotic mouse models through unclear mechanisms. In this study, we investigated the effect of the DPP-4 inhibitor, linagliptin, on macrophage polarization in vitro and in vivo. METHODS Mouse bone marrow macrophages (BMMs) were used in in vitro assays. High fat diet (HFD)-fed Apoe-/- mice were treated orally with linagliptin (10 mg/kg-1•day-1) or a vehicle (water) control. RESULTS In in vitro assays using BMMs, treatment with LPS and IFNγ decreased the mRNA-expression levels of alternatively activated macrophage (M2) markers, and linagliptin treatment prevented these reductions. The mRNA levels of M2 markers and the number of M2 macrophages in the aorta were higher in linagliptin groups than in control groups. Linagliptin decreased the size of atherosclerotic lesions in HFD-fed Apoe-/- mice. Interestingly, inflammatory stimulation increased DPP-4 expression, and linagliptin suppressed these effects in BMMs. Treatment with DPP-4 small-interfering RNA (siRNA) reproduced linagliptin-mediated alteration of M2 polarization. CONCLUSIONS Linagliptin increased M2 macrophage polarization by inhibiting DPP-4 expression and activity. These findings may indicate the beneficial effects of DPP-4 inhibitors on the progression of diabetic macrovascular complications.
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Affiliation(s)
- Shuhei Nishida
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takeshi Matsumura
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.
| | - Takafumi Senokuchi
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Saiko Murakami-Nishida
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Norio Ishii
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yutaro Morita
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshitaka Yagi
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroyuki Motoshima
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tatsuya Kondo
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Eiichi Araki
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan; Center for Metabolic Regulation of Healthy Aging (CMHA), Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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13
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Wu C, Daugherty A, Lu HS. Updates on Approaches for Studying Atherosclerosis. Arterioscler Thromb Vasc Biol 2020; 39:e108-e117. [PMID: 30917052 DOI: 10.1161/atvbaha.119.312001] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Congqing Wu
- From the Saha Cardiovascular Research Center (C.W., A.D., H.S.L.), University of Kentucky, Lexington
| | - Alan Daugherty
- From the Saha Cardiovascular Research Center (C.W., A.D., H.S.L.), University of Kentucky, Lexington.,Department of Physiology (A.D., H.S.L.), University of Kentucky, Lexington
| | - Hong S Lu
- From the Saha Cardiovascular Research Center (C.W., A.D., H.S.L.), University of Kentucky, Lexington.,Department of Physiology (A.D., H.S.L.), University of Kentucky, Lexington
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14
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Lu HS, Schmidt AM, Hegele RA, Mackman N, Rader DJ, Weber C, Daugherty A. Annual Report on Sex in Preclinical Studies: Arteriosclerosis, Thrombosis, and Vascular Biology Publications in 2018. Arterioscler Thromb Vasc Biol 2019; 40:e1-e9. [PMID: 31869272 DOI: 10.1161/atvbaha.119.313556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hong S Lu
- From the Saha Cardiovascular Research Center and Department of Physiology, University of Kentucky, Lexington (H.S.L., A.D.)
| | - Ann Marie Schmidt
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University Langone Medical Center, New York, NY (A.M.S.)
| | - Robert A Hegele
- Department of Medicine and Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada (R.A.H.)
| | - Nigel Mackman
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC (N.M.)
| | - Daniel J Rader
- Departments of Medicine and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia (D.J.R.)
| | - Christian Weber
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität (LMU) and German Centre for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany (C.W.)
| | - Alan Daugherty
- From the Saha Cardiovascular Research Center and Department of Physiology, University of Kentucky, Lexington (H.S.L., A.D.)
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15
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van der Vorst EPC, Weber C. Novel Features of Monocytes and Macrophages in Cardiovascular Biology and Disease. Arterioscler Thromb Vasc Biol 2019; 39:e30-e37. [PMID: 30673349 DOI: 10.1161/atvbaha.118.312002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Emiel P C van der Vorst
- From the Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität München, Munich, Germany (E.P.C.v.d.V., C.W.)
| | - Christian Weber
- From the Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität München, Munich, Germany (E.P.C.v.d.V., C.W.).,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Germany (C.W.).,Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, the Netherlands (C.W.)
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16
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Sun H, Jiang J, Gong L, Li X, Yang Y, Luo Y, Guo Z, Lu R, Li H, Li J, Zhao J, Yang N, Li Y. Voltage-gated sodium channel inhibitor reduces atherosclerosis by modulating monocyte/macrophage subsets and suppressing macrophage proliferation. Biomed Pharmacother 2019; 120:109352. [DOI: 10.1016/j.biopha.2019.109352] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 08/13/2019] [Accepted: 08/14/2019] [Indexed: 12/19/2022] Open
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17
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O'Morain VL, Ramji DP. The Potential of Probiotics in the Prevention and Treatment of Atherosclerosis. Mol Nutr Food Res 2019; 64:e1900797. [PMID: 31697015 DOI: 10.1002/mnfr.201900797] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/24/2019] [Indexed: 12/16/2022]
Abstract
Atherosclerosis, the underlying cause of cardiovascular diseases such as myocardial infarction, cerebrovascular accident, and peripheral vascular disease, is the leading cause of global mortality. Current therapies against atherosclerosis, which mostly target the dyslipidemia associated with the disease, have considerable residual risk for cardiovascular disease together with various side effects. In addition, the outcomes from clinical trials on many promising pharmaceutical agents against atherosclerosis (e.g., low-dose methotrexate, inhibitors against cholesteryl ester transfer protein) have been disappointing. Nutraceuticals such as probiotic bacteria have, therefore, generated substantial recent interest for the prevention of atherosclerosis and potentially as add-ons with current pharmaceutical drugs. This review will discuss the current understanding of the anti-atherogenic actions of probiotics from preclinical and clinical studies together with their potential underlying mechanisms of action.
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Affiliation(s)
- Victoria L O'Morain
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX, UK
| | - Dipak P Ramji
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX, UK
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18
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Palasubramaniam J, Wang X, Peter K. Myocardial Infarction-From Atherosclerosis to Thrombosis. Arterioscler Thromb Vasc Biol 2019; 39:e176-e185. [PMID: 31339782 DOI: 10.1161/atvbaha.119.312578] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Jathushan Palasubramaniam
- From the Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia (J.P., X.W., K.P.).,Department of Medicine, Monash University, Melbourne, Australia (J.P., X.W., K.P.).,Department of Cardiology, Alfred Hospital, Melbourne, Australia (J.P., K.P.)
| | - Xiaowei Wang
- From the Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia (J.P., X.W., K.P.).,Department of Medicine, Monash University, Melbourne, Australia (J.P., X.W., K.P.)
| | - Karlheinz Peter
- From the Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia (J.P., X.W., K.P.).,Department of Medicine, Monash University, Melbourne, Australia (J.P., X.W., K.P.).,Department of Cardiology, Alfred Hospital, Melbourne, Australia (J.P., K.P.)
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19
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Murakami-Nishida S, Matsumura T, Senokuchi T, Ishii N, Kinoshita H, Yamada S, Morita Y, Nishida S, Motoshima H, Kondo T, Komohara Y, Araki E. Pioglitazone suppresses macrophage proliferation in apolipoprotein-E deficient mice by activating PPARγ. Atherosclerosis 2019; 286:30-39. [PMID: 31096071 DOI: 10.1016/j.atherosclerosis.2019.04.229] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 04/05/2019] [Accepted: 04/30/2019] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND AIMS Local macrophage proliferation is linked to enhanced atherosclerosis progression. Our previous study found that troglitazone, a thiazolidinedione (TZD), suppressed oxidized low-density lipoprotein (Ox-LDL)-induced macrophage proliferation. However, its effects and mechanisms are unclear. Therefore, we investigated the effects of pioglitazone, another TZD, on macrophage proliferation. METHODS Normal chow (NC)- or high-fat diet (HFD)-fed apolipoprotein E-deficient (Apoe-/-) mice were treated orally with pioglitazone (10 mg/kg/day) or vehicle (water) as a control. Mouse peritoneal macrophages were used in in vitro assays. RESULTS Atherosclerosis progression was suppressed in aortic sinuses of pioglitazone-treated Apoe-/- mice, which showed fewer proliferating macrophages in plaques. Pioglitazone suppressed Ox-LDL-induced macrophage proliferation in a dose-dependent manner. However, treatment with peroxisome proliferator-activated receptor-γ (PPARγ) siRNA ameliorated pioglitazone-induced suppression of macrophage proliferation. Low concentrations (less than 100 μmol/L) of pioglitazone, which can suppress macrophage proliferation, activated PPARγ in macrophages, but did not induce macrophage apoptosis. Pioglitazone treatment did not induce TUNEL-positive cells in atherosclerotic plaques of aortic sinuses in Apoe-/- mice. CONCLUSIONS Pioglitazone suppressed macrophage proliferation through PPARγ without inducing macrophage apoptosis. These findings imply that pioglitazone could prevent macrovascular complications in diabetic individuals.
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Affiliation(s)
- Saiko Murakami-Nishida
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takeshi Matsumura
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.
| | - Takafumi Senokuchi
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Norio Ishii
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroyuki Kinoshita
- Department of Diabetes and Endocrinology, National Hospital Organization, Kumamoto Medical Center, Kumamoto, Japan
| | - Sarie Yamada
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yutaro Morita
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Shuhei Nishida
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroyuki Motoshima
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tatsuya Kondo
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshihiro Komohara
- Department of Cell Pathology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Eiichi Araki
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan; Center for Metabolic Regulation of Healthy Aging (CMHA), Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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20
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Lin H, Ni T, Zhang J, Meng L, Gao F, Pan S, Luo H, Xu F, Ru G, Chi J, Guo H. Knockdown of Herp alleviates hyperhomocysteinemia mediated atherosclerosis through the inhibition of vascular smooth muscle cell phenotype switching. Int J Cardiol 2018; 269:242-249. [PMID: 30017525 DOI: 10.1016/j.ijcard.2018.07.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/29/2018] [Accepted: 07/06/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Phenotypic switching of vascular smooth muscle cells (VSMCs) plays a key role in atherosclerosis. We aimed to investigate whether Homocysteine-responsive endoplasmic reticulum protein (Herp) was involved in VSMC phenotypic switching and affected atheroprogression. METHODS To assess the role of Herp in homocysteine (Hcy)-associated atherosclerosis, Herp-/- and LDLR-/- double knockout mice were generated and fed with a high methionine diet (HMD) to induce Hyperhomocysteinemia (HHcy). Atherosclerotic lesions, cholesterol homeostasis, endoplasmic reticulum (ER) stress activation, and the phenotype of VSMCs were assessed in vivo. We used siRNAs to knockdown Herp in cultured VSMCs to further validate our findings in vitro. RESULTS HMD significantly activated the activating transcription factor 6 (ATF6)/Herp arm of ER stress in LDLR-/- mice, and induced the phenotypic switch of VSMCs, with the loss of contractile proteins (SMA and calponin) and an increase of OPN protein. Herp-/-/LDLR-/- mice developed reduced atherosclerotic lesions in the aortic sinus and the whole aorta when compared with LDLR-/- mice. However, Herp deficiency had no effect on diet-induced HHcy and hyperlipidemia. Inhibition of VSMC phenotypic switching, decreased proliferation and collagen accumulation were observed in Herp-/-/LDLR-/- mice when compared with LDLR-/- mice. In vitro experiments demonstrated that Hcy caused VSMC phenotypic switching, promoted cell proliferation and migration; this was reversed by Herp depletion. We achieved similar results via inhibition of ER stress using 4-phenylbutyric-acid (4-PBA) in Hcy-treated VSMCs. CONCLUSION Herp deficiency inhibits the phenotypic switch of VSMCs and the development of atherosclerosis, thus providing novel insights into the role of Herp in atherogenesis.
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Affiliation(s)
- Hui Lin
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China; The First Clinical Medical College, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Tingjuan Ni
- Zhejiang University School of Medicine, Hangzhou 310000, Zhejiang, China
| | - Jie Zhang
- The First Clinical Medical College, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Liping Meng
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China
| | - Feidan Gao
- Zhejiang Chinese Medical University, Hangzhou 310000, Zhejiang, China
| | - Sunlei Pan
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China
| | - Hangqi Luo
- Zhejiang University School of Medicine, Hangzhou 310000, Zhejiang, China
| | - Fukang Xu
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China
| | - Guomei Ru
- Medical Research Center, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China
| | - Jufang Chi
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China; The First Clinical Medical College, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China.
| | - Hangyuan Guo
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China; The First Clinical Medical College, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China.
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