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Hypotheses on Atherogenesis Triggering: Does the Infectious Nature of Atherosclerosis Development Have a Substruction? Cells 2023; 12:cells12050707. [PMID: 36899843 PMCID: PMC10001176 DOI: 10.3390/cells12050707] [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: 12/19/2022] [Revised: 02/03/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
Since the end of the 20th century, it has been clear that atherosclerosis is an inflammatory disease. However, the main triggering mechanism of the inflammatory process in the vascular walls is still unclear. To date, many different hypotheses have been put forward to explain the causes of atherogenesis, and all of them are supported by strong evidence. Among the main causes of atherosclerosis, which underlies these hypotheses, the following can be mentioned: lipoprotein modification, oxidative transformation, shear stress, endothelial dysfunction, free radicals' action, homocysteinemia, diabetes mellitus, and decreased nitric oxide level. One of the latest hypotheses concerns the infectious nature of atherogenesis. The currently available data indicate that pathogen-associated molecular patterns from bacteria or viruses may be an etiological factor in atherosclerosis. This paper is devoted to the analysis of existing hypotheses for atherogenesis triggering, and special attention is paid to the contribution of bacterial and viral infections to the pathogenesis of atherosclerosis and cardiovascular disease.
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Gao Y, Qian Q, Xun G, Zhang J, Sun S, Liu X, Liu F, Ge J, Zhang H, Fu Y, Su S, Wang X, Wang Q. Integrated metabolomics and network analysis reveal changes in lipid metabolisms of tripterygium glycosides tablets in rats with collagen-induced arthritis. Comput Struct Biotechnol J 2023; 21:1828-1842. [PMID: 36923473 PMCID: PMC10009339 DOI: 10.1016/j.csbj.2023.02.050] [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: 12/23/2022] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 03/04/2023] Open
Abstract
Tripterygium glycosides tablets (TGT) are the commonly used preparation for rheumatoid arthritis (RA). However, the changes in TGT on RA are still unclear at the metabolic level. This study aimed to reveal the biological processes of TGT in collagen-induced arthritis (CIA) rats through integrated metabolomics and network analysis. First, the CIA model in rats was established, and the CIA rats were given three doses of TGT. Then, the endogenous metabolites in the serum from normal rats, CIA rats, and CIA rats treated with varying doses of TGT were detected by UHPLC-QTOF-MS/MS. Next, univariate and multivariate statistical analyses were performed to find the differential metabolites. Finally, differential metabolites, metabolic pathways, and hub genes were analyzed integrally to reveal the biological processes of TGT in CIA rats. The paw diameter, arthritis score, immunoglobulin G (IgG) concentration, CT image, and histological assay showed that TGT had evident therapeutic effects on CIA rats. Untargeted metabolomics revealed that TGT could ameliorate the down-regulation of lipid levels in CIA rats. Four key differential metabolites were found including LysoP(18:0), LysoPA(20:4), LysoPA(18:2), and PS(O-20:0/17:1). The glycerophospholipid metabolic pathway was perturbed in treating CIA with TGT. A total of 24 genes, including PLD1, LPCAT4, AGPAT1, and PLA2G4A, were found to be the hub genes of TGT in CIA rats. In conclusion, the integrated analysis provided a novel and holistic perspective on the biological processes of TGT in CIA rats, which could give helpful guidance for further TGT on RA. Future studies based on human samples are necessary.
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Key Words
- CDS, Calibrant Delivery System
- CFA, Complete Freund’s adjuvant
- CIA, collagen-induced arthritis
- CUR, curtain gas
- DMARDs, disease-modifying anti-rheumatic drugs
- ESI, electrospray ionization
- FC, fold change
- GS1, nebulizer gas
- GS2, heater gas
- HMDB, Human Metabolome Database
- IDA, Information Dependent Acquisition
- IgG, immunoglobulin G
- Lipid metabolisms
- Metabolomics
- Micro-CT, Micro-computed tomography
- Network analysis
- QC, quality control
- RA, rheumatoid arthritis
- ROC, Receiver operating characteristic
- Rheumatoid arthritis
- TGT, Tripterygium glycosides tablets
- Tripterygium glycosides tablets
- VIP, variable importance in projection
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Affiliation(s)
- Yanhua Gao
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Qi Qian
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Ge Xun
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Jia Zhang
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Shuo Sun
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Xin Liu
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Fangfang Liu
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Jiachen Ge
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Huaxing Zhang
- Core Facilities and Centers, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Yan Fu
- Core Facilities and Centers, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Suwen Su
- Key Laboratory of Pharmacology and Toxicology for New Drugs, Department of Pharmacology, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Xu Wang
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
| | - Qiao Wang
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
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Xiao W, Li J, Huang X, Zhu Q, Liu T, Xie H, Deng Z, Tang Y. Mediation roles of neutrophils and high-density lipoprotein (HDL) on the relationship between HLA-DQB1 and rosacea. Ann Med 2022; 54:1530-1537. [PMID: 35622385 PMCID: PMC9891224 DOI: 10.1080/07853890.2022.2077427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Though the previous genome-wide association studies found the association between HLA alleles and rosacea in the European populations, the data is lacking among the Asians. Moreover, neutrophils are important in the immune-related mechanism of rosacea, and dyslipidemia is closely related to rosacea. We aimed to explore the association between HLA genes and rosacea in Chinese rosacea patients, as well as the mediation effect of neutrophils, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) on the relationship between HLA genes and rosacea. METHODS A total of 249 rosacea and 150 controls were ranked by the international investigator global rosacea severity scores. HLA genes, neutrophils, HDL, and LDL were detected. And their mediation effects on the relationship between HLA and rosacea risk or severity were analysed. RESULTS HLA-DQB1*03:03 allele (OR = 41.89, 95% CI: 9.80 ∼ 179.09, p = 4.7*10-7), HLA-DQB1*04:02 allele (OR = 0.16, 95% CI: 0.03 ∼ 0.81, p = 0.026) and HLA-DQB1*03:03/05:02 genotype (OR = 5.57, 95% CI: 1.13 ∼ 27.52, p = 0.0351) were significantly associated with rosacea. Moreover, HLA-DQB1*03:03 allele (b = 1.434, SE = 0.217, p = 2.0*10-10), HLA-DQB1*05:01 allele (b = 0.894, SE = 0.33520, p = 0.008) and HLA-DQB1*03:03/06:01 genotype (b = 0.998, SE = 0.472, p = 0.040) were positively associated with rosacea severity. Furthermore, we found both neutrophils and HDL, instead of LDL, have mediation effects on the relationship between HLA-DQB1*03:03 and risk or severity of rosacea. CONCLUSIONS We discovered novel susceptible HLA alleles for rosacea in the Chinese population, and disclosed the mediation effect of neutrophils and HDL on the relationship between HLA-DQB1 and rosacea, implying a possible correlation between rosacea and inflammatory or metabolic factors, providing hints for future studies in the mechanism of rosacea. Key messagesHLA-DQB1*03:03 allele, HLA-DQB1*04:02 allele and HLA-DQB1*03:03/05:02 genotype were significantly associated with rosacea.HLA-DQB1*03:03 allele, HLA-DQB1*05:01 allele and HLA-DQB1*03:03/06:01 genotype were positively associated with rosacea severity.Neutrophils and HDL have mediation effects on the relationship between HLA-DQB1*03:03 and risk or severity of rosacea.
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Affiliation(s)
- Wenqin Xiao
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratary of Aging Biology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South Univerisity, Changsha, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratary of Aging Biology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South Univerisity, Changsha, China
| | - Xin Huang
- Department of Epidemiology and Biostatistics, School of Medicine, Hunan Normal University, Changsha, China
| | - Quan Zhu
- Department of Immunology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Tangxiele Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratary of Aging Biology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South Univerisity, Changsha, China
| | - Hongfu Xie
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratary of Aging Biology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South Univerisity, Changsha, China
| | - Zhili Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratary of Aging Biology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South Univerisity, Changsha, China
| | - Yan Tang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratary of Aging Biology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Central South Univerisity, Changsha, China
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4
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Nikiforov NG, Zlenko DV, Orekhova VA, Melnichenko AA, Orekhov AN. Local Accumulation of Lymphocytes in the Intima of Human Aorta Is Associated with Giant Multinucleated Endothelial Cells: Possible Explanation for Mosaicism of Atherosclerosis. Int J Mol Sci 2022; 23:ijms23031059. [PMID: 35162983 PMCID: PMC8835708 DOI: 10.3390/ijms23031059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/14/2022] [Accepted: 01/14/2022] [Indexed: 02/04/2023] Open
Abstract
Distribution of different types of atherosclerotic lesions in the arterial wall is not diffuse, but is characterized by mosaicism. The causes of such distribution remain to be established. At the early stages of atherogenesis, low-density lipoprotein (LDL) particles and immune cells penetrate into the intimal layer of the arterial wall through the endothelium. In adult humans, the luminal surface of the arterial wall is a heterogeneous monolayer of cells with varying morphology including typical endothelial cells (ECs) and multinucleated variant endothelial cells (MVECs). We hypothesized that distribution of MVECs in the endothelial monolayer can be related to the distribution pattern of early atherosclerotic lesions. We obtained en face preparations of intact adult (22–59 years old) aortic wall sections that allowed us to study the endothelial monolayer and the subendothelial layer. We compared the distribution of MVECs in the endothelial monolayer with the localization of early atherosclerotic lesions in the subendothelial layer, which were characterized by lipid accumulation and immune cell recruitment. In primary culture, MVECs demonstrated increased phagocytic activity compared to mononuclear ECs. Moreover, we have shown that unaffected aortic intima contained associates formed as a result of aggregation and/or fusion of LDL particles that are non-randomly distributed. This indicated that MVECs may be involved in the accumulation of LDL in the subendothelial layer through increased transcytosis. Interaction of LDL with subendothelial cells of human aorta in primary culture increased their adhesive properties toward circulating immune cells. Study of unaffected aortic intima revealed non-random distribution of leukocytes in the subendothelial layer and increased localization of CD45+ leukocytes in the subendothelial layer adjacent to MVECs. Together, our observations indicate that MVECs may be responsible for the distribution of atherosclerotic lesions in the arterial wall by participating in LDL internalization and immune cell recruitment.
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Affiliation(s)
- Nikita G. Nikiforov
- Laboratory of Medical Genetics, Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia;
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia;
| | - Dmitry V. Zlenko
- N.N. Semenov Federal Research Center for Chemical Physics RAS, 119991 Moscow, Russia;
- Faculty of Biology, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Varvara A. Orekhova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia;
- Correspondence: (V.A.O.); (A.N.O.); Tel.: +7-9057506815 (A.N.O.)
| | - Alexandra A. Melnichenko
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia;
| | - Alexander N. Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia;
- Laboratory of Infection Pathology and Molecular Microecology, Institute of Human Morphology, 117418 Moscow, Russia
- Correspondence: (V.A.O.); (A.N.O.); Tel.: +7-9057506815 (A.N.O.)
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5
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Sobenin IA, Zhelankin AV, Khasanova ZB, Sinyov VV, Medvedeva LV, Sagaidak MO, Makeev VJ, Kolmychkova KI, Smirnova AS, Sukhorukov VN, Postnov AY, Grechko AV, Orekhov AN. Heteroplasmic Variants of Mitochondrial DNA in Atherosclerotic Lesions of Human Aortic Intima. Biomolecules 2019; 9:biom9090455. [PMID: 31500189 PMCID: PMC6770808 DOI: 10.3390/biom9090455] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 12/16/2022] Open
Abstract
Mitochondrial dysfunction and oxidative stress are likely involved in atherogenesis. Since the mitochondrial genome variation can alter functional activity of cells, it is necessary to assess the presence in atherosclerotic lesions of mitochondrial DNA (mtDNA) heteroplasmic mutations known to be associated with different pathological processes and ageing. In this study, mtDNA heteroplasmy and copy number (mtCN) were evaluated in the autopsy-derived samples of aortic intima differing by the type of atherosclerotic lesions. To detect mtDNA heteroplasmic variants, next generation sequencing was used, and mtCN measurement was performed by qPCR. It was shown that mtDNA heteroplasmic mutations are characteristic for particular areas of intimal tissue; in 83 intimal samples 55 heteroplasmic variants were found; mean minor allele frequencies level accounted for 0.09, with 12% mean heteroplasmy level. The mtCN variance measured in adjacent areas of intima was high, but atherosclerotic lesions and unaffected intima did not differ significantly in mtCN values. Basing on the ratio of minor and major nucleotide mtDNA variants, we can conclude that there exists the increase in the number of heteroplasmic mtDNA variants, which corresponds to the extent of atherosclerotic morphologic phenotype.
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Affiliation(s)
- Igor A Sobenin
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia.
- Research Institute of Threpsology and Healthy Longevity, Plekhanov Russian University of Economics, 115093 Moscow, Russia.
| | - Andrey V Zhelankin
- Federal Research and Clinical Center of Physical-Chemical Medicine, 119435 Moscow, Russia.
| | - Zukhra B Khasanova
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
| | - Vasily V Sinyov
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia.
| | - Lyudmila V Medvedeva
- Federal Research Center of Transplantology and Artificial Organs, 123182 Moscow, Russia.
| | - Maria O Sagaidak
- Vavilov Institute of General Genetics, 117971 Moscow, Russia.
- Moscow Institute of Physics and Technology, Dolgoprudny, 141701 Moscow Region, Russia.
| | - Vsevolod J Makeev
- Vavilov Institute of General Genetics, 117971 Moscow, Russia.
- Moscow Institute of Physics and Technology, Dolgoprudny, 141701 Moscow Region, Russia.
- Engelhardt Institute of Molecular Biology, 119991 Moscow, Russia.
| | - Kira I Kolmychkova
- Institute for Atherosclerosis Research, Skolkovo Innovation Center, 143026 Moscow, Russia.
| | - Anna S Smirnova
- Institute for Atherosclerosis Research, Skolkovo Innovation Center, 143026 Moscow, Russia.
| | - Vasily N Sukhorukov
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
- Research Institute of Human Morphology, 117418 Moscow, Russia.
| | - Anton Y Postnov
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
- Research Institute of Human Morphology, 117418 Moscow, Russia.
| | - Andrey V Grechko
- Federal Scientific Clinical Center for Resuscitation and Rehabilitation, 141534 Moscow Region, Russia.
| | - Alexander N Orekhov
- Institute for Atherosclerosis Research, Skolkovo Innovation Center, 143026 Moscow, Russia.
- Research Institute of Human Morphology, 117418 Moscow, Russia.
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6
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Summerhill V, Orekhov A. Pericytes in Atherosclerosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1147:279-297. [DOI: 10.1007/978-3-030-16908-4_13] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Gil-Pulido J, Zernecke A. Antigen-presenting dendritic cells in atherosclerosis. Eur J Pharmacol 2017; 816:25-31. [DOI: 10.1016/j.ejphar.2017.08.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 08/11/2017] [Accepted: 08/15/2017] [Indexed: 11/29/2022]
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8
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Cellular mechanisms of human atherosclerosis: Role of cell-to-cell communications in subendothelial cell functions. Tissue Cell 2015; 48:25-34. [PMID: 26747411 DOI: 10.1016/j.tice.2015.11.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 11/09/2015] [Accepted: 11/09/2015] [Indexed: 12/16/2022]
Abstract
The present study was undertaken in order to extend of our earlier work, focusing on the analysis of roles of cell-to-cell communications in the regulation of the subendothelial cell function. In present study, we have found that the expression of connexin43 (Cx43) is dramatically reduced in human atherosclerotic lesions, compared with undiseased intima. In atherosclerotic lesions, the number of so-called 'connexin plaques' was found to be lower in lipid-laden cells than in cells which were free from lipid inclusions. In primary cell culture, subendothelial intimal cells tended to create multicellular structures in the form of clusters. Cluster creation was accompanied by the formation of gap junctions between cells; the degree of gap junctional communication correlated with the density of cells in culture. We found that atherosclerosis-related processes such as DNA synthesis, protein synthesis and accumulation of intracellular cholesterol correlated with the degree of cell-to-cell communication. The relation of DNA and protein synthesis with cell-to-cell communication could be described as "bell-shaped". We further incubated cells, cultured from undiseased subendothelial intima, with various forms of modified LDL causing intracellular cholesterol accumulation. After the incubation of intimal cells with modified LDL, intercellular communication has "dropped" considerably. The findings indicate that intracellular lipid accumulation might be a reason for a decrease of the number of gap junctions. The findings also suggest that the disintegration of cellular network is associated with foam cell formation, the process known as a key event of atherogenesis.
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9
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Rocha DM, Caldas AP, Oliveira LL, Bressan J, Hermsdorff HH. Saturated fatty acids trigger TLR4-mediated inflammatory response. Atherosclerosis 2015; 244:211-5. [PMID: 26687466 DOI: 10.1016/j.atherosclerosis.2015.11.015] [Citation(s) in RCA: 307] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/16/2015] [Accepted: 11/16/2015] [Indexed: 12/11/2022]
Abstract
Toll-like receptors (TLR) mediate infection-induced inflammation and sterile inflammation by endogenous molecules. Among the TLR family, TLR4 is the best understood. However, while its downstream signaling pathways have been well defined, not all ligands of TLR4 are currently known. Current evidence suggests that saturated fatty acids (SFA) act as non-microbial TLR4 agonists, and trigger its inflammatory response. Thus, our present review provides a new perspective on the potential mechanism by which SFAs could modulate TLR4-induced inflammatory responses: (1) SFAs can be recognized by CD14-TLR4-MD2 complex and trigger inflammatory pathways, similar to lipopolysaccharide (LPS). (2) SFAs lead to modification of gut microbiota with an overproduction of LPS after a high-fat intake, enhancing this natural TLR4 ligand. (3) In addition, this metabolic endotoxemia leads to an oxidative stress thereby producing atherogenic lipids - oxLDL and oxidized phospholipids - which trigger CD36-TLR4-TLR6 inflammatory response. (4) Also, the high SFA consumption increases the lipemia and the mmLDL and oxLDL formation through oxidative modifications of LDL. The mmLDL, unlike oxLDL, is involved in activation of the CD14-TLR4-MD2 inflammatory pathway. Those molecules can induce TLR4 inflammatory response by MyD88-dependent and/or MyD88-independent pathways that, in turn, promotes the expression of proinflammatory transcript factors such as factor nuclear kappa B (NF-κB), which plays a crucial role in the induction of inflammatory mediators (cytokines, chemokines, or costimulatory molecules) implicated in the development and progression of many chronic diseases.
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Affiliation(s)
- D M Rocha
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil.
| | - A P Caldas
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil.
| | - L L Oliveira
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Brazil.
| | - J Bressan
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil.
| | - H H Hermsdorff
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil.
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10
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Ivanova EA, Bobryshev YV, Orekhov AN. Intimal pericytes as the second line of immune defence in atherosclerosis. World J Cardiol 2015; 7:583-93. [PMID: 26516412 PMCID: PMC4620069 DOI: 10.4330/wjc.v7.i10.583] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 08/31/2015] [Accepted: 09/07/2015] [Indexed: 02/06/2023] Open
Abstract
Inflammation plays an essential role in the development of atherosclerosis. The initiation and growth of atherosclerotic plaques is accompanied by recruitment of inflammatory and precursor cells from the bloodstream and their differentiation towards pro-inflammatory phenotypes. This process is orchestrated by the production of a number of pro-inflammatory cytokines and chemokines. Human arterial intima consists of structurally distinct leaflets, with a proteoglycan-rich layer lying immediately below the endothelial lining. Recent studies reveal the important role of stellate pericyte-like cells (intimal pericytes) populating the proteoglycan-rich layer in the development of atherosclerosis. During the pathologic process, intimal pericytes may participate in the recruitment of inflammatory cells by producing signalling molecules and play a role in the antigen presentation. Intimal pericytes are also involved in lipid accumulation and the formation of foam cells. This review focuses on the role of pericyte-like cells in the development of atherosclerotic lesions.
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Affiliation(s)
- Ekaterina A Ivanova
- Ekaterina A Ivanova, Department of Development and Regeneration, Biomedical Sciences Group, KU Leuve, Leuven, Belgium
| | - Yuri V Bobryshev
- Ekaterina A Ivanova, Department of Development and Regeneration, Biomedical Sciences Group, KU Leuve, Leuven, Belgium
| | - Alexander N Orekhov
- Ekaterina A Ivanova, Department of Development and Regeneration, Biomedical Sciences Group, KU Leuve, Leuven, Belgium
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11
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Quantitative analysis of the expression of caspase 3 and caspase 9 in different types of atherosclerotic lesions in the human aorta. Exp Mol Pathol 2015; 99:1-6. [DOI: 10.1016/j.yexmp.2015.05.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 05/01/2015] [Indexed: 01/15/2023]
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12
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Sobenin IA, Zhelankin AV, Sinyov VV, Bobryshev YV, Orekhov AN. Mitochondrial Aging: Focus on Mitochondrial DNA Damage in Atherosclerosis - A Mini-Review. Gerontology 2014; 61:343-9. [DOI: 10.1159/000368923] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 10/08/2014] [Indexed: 11/19/2022] Open
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13
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Orekhov AN, Bobryshev YV, Chistiakov DA. The complexity of cell composition of the intima of large arteries: focus on pericyte-like cells. Cardiovasc Res 2014; 103:438-51. [PMID: 25016615 DOI: 10.1093/cvr/cvu168] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Pericytes, which are also known as Rouget cells or perivascular cells, are considered to represent a likely distinct pool of vascular cells that are extremely branched and located mostly in the periphery of the vascular system. The family of pericytes is a heterogeneous cell population that includes pericytes and pericyte-like cells. Accumulated data indicate that networks of pericyte-like cells exist in normal non-atherosclerotic intima, and that pericyte-like cells can be involved in the development of atherosclerotic lesions from the very early stages of disease. The pathogenic role of arterial pericytes and pericyte-like cells also might be important in advanced and complicated atherosclerotic lesions via realizing mechanisms of vascular remodelling, ectopic ossification, intraplaque neovascularization, and probably thrombosis.
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Affiliation(s)
- Alexander N Orekhov
- Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow, Russia
| | - Yuri V Bobryshev
- Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow, Russia Faculty of Medicine, School of Medical Sciences, University of New South Wales, Kensington, Sydney, NSW 2052, Australia
| | - Dimitry A Chistiakov
- Department of Medical Nanobiotechnology, Pirogov Russian State Medical University, Moscow, Russia
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Sobenin IA, Chistiakov DA, Sazonova MA, Ivanova MM, Bobryshev YV, Orekhov AN, Postnov AY. Association of the level of heteroplasmy of the 15059G>A mutation in the MT-CYB mitochondrial gene with essential hypertension. World J Cardiol 2013; 5:132-40. [PMID: 23710300 PMCID: PMC3663127 DOI: 10.4330/wjc.v5.i5.132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 03/14/2013] [Accepted: 03/28/2013] [Indexed: 02/06/2023] Open
Abstract
AIM To examine whether the heteroplasmy level for 15059G>A mutation in the mitochondrial genome might be associated with essential hypertension. METHODS This cross-sectional study involved 196 unrelated participants randomly selected from general population (90 males and 106 females) who underwent a regular medical check-up at the Institute for Atherosclerosis Research (Moscow, Russia). One hundred and twenty of them (61%) had essential hypertension, and 76 (39%) were apparently healthy normotensive persons. The level of heteroplasmy for 15059G>A mutation occurring in the coding region of cytochrome b gene (MT-CYB) of mtDNA isolated from the blood leukocytes, was quantified using DNA pyrosequencing method. RESULTS The 15059G>A heteroplasmy level ranged between 4% and 83%, with a median level of 31%. Between the upper and lower quartiles of 15059G>A heteroplasmy distribution, significant differences were observed for patients' age, systolic blood pressure, and triglyceride levels. 15059G>A heteroplasmy correlated both with age (r = 0.331, P < 0.001) and the presence of hypertension (r = 0.228, P = 0.002). Regression analysis revealed that the age explains 12% variability of 15059G>A heteroplasmy, and hypertension independently explains more 5% variability. The 15059G>A heteroplasmy exceeding 31% was found to be significantly associated with a higher risk of essential hypertension (odds ratio 2.76; P (Fisher) 0.019]. The study participants with high 15059G>A heteroplasmy level were found to have significantly higher age (P < 0.001) and the prevalence of essential hypertension (P = 0.033), as compared to those with low 15059G>A heteroplasmy level. These observations suggested a positive correlation between the level of 15059G>A heteroplasmy and essential hypertension. CONCLUSION This study provides the evidence of association of mtDNA 15059G>A mutation heteroplasmy with essential hypertension.
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Affiliation(s)
- Igor A Sobenin
- Igor A Sobenin, Margarita A Sazonova, Anton Y Postnov, Russian Cardiology Research and Production Complex, 121552 Moscow, Russia
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Current world literature. Curr Opin Cardiol 2012; 27:682-95. [PMID: 23075824 DOI: 10.1097/hco.0b013e32835a0ad8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sobenin IA, Sazonova MA, Ivanova MM, Zhelankin AV, Myasoedova VA, Postnov AY, Nurbaev SD, Bobryshev YV, Orekhov AN. Mutation C3256T of mitochondrial genome in white blood cells: novel genetic marker of atherosclerosis and coronary heart disease. PLoS One 2012; 7:e46573. [PMID: 23056349 PMCID: PMC3462756 DOI: 10.1371/journal.pone.0046573] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Accepted: 08/31/2012] [Indexed: 01/20/2023] Open
Abstract
This study was undertaken to examine the association between the level of heteroplasmy for the mutation C3256T in human white blood cells and the extent of carotid atherosclerosis, as well as the presence of coronary heart disease (CHD), the major clinical manifestation of atherosclerosis. Totally, 191 participants (84 men, 107 women) aged 65.0 years (SD 9.4) were recruited in the study; 45 (24%) of them had CHD. High-resolution B-mode ultrasonography of carotids was used to estimate the extent of carotid atherosclerosis by measuring of the carotid intima-media thickness (cIMT). DNA samples were obtained from whole venous blood, and then PCR and pyrosequencing were carried out. On the basis of pyrosequencing data, the levels of C3256T heteroplasmy in DNA samples were calculated. The presence of the mutant allele was detected in all study participants; the level of C3256T heteroplasmy in white blood cells ranged from 5% to 74%. The highly significant relationship between C3256T heteroplasmy level and predisposition to atherosclerosis was revealed. In individuals with low predisposition to atherosclerosis the mean level of C3256T heteroplasmy was 16.8%, as compared to 23.8% in moderately predisposed subjects, and further to 25.2% and 28.3% in significantly and highly predisposed subjects, respectively. The level of C3256T heteroplasmy of mitochondrial genome in human white blood cells is a biomarker of mitochondrial dysfunction and risk factor for atherosclerosis; therefore, it can be used as an informative marker of genetic susceptibility to atherosclerosis, coronary heart disease and myocardial infarction.
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Affiliation(s)
- Igor A. Sobenin
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Russian Ministry of Health and Social Care, Moscow, Russian Federation
- Laboratory of Cellular Mechanisms of Atherogenesis, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russian Federation
| | - Margarita A. Sazonova
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Russian Ministry of Health and Social Care, Moscow, Russian Federation
- Laboratory of Cellular Mechanisms of Atherogenesis, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russian Federation
| | - Maria M. Ivanova
- Laboratory of Cellular Mechanisms of Atherogenesis, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russian Federation
| | - Andrey V. Zhelankin
- Laboratory of Cellular Mechanisms of Atherogenesis, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russian Federation
| | - Veronika A. Myasoedova
- Laboratory of Cellular Mechanisms of Atherogenesis, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russian Federation
- Department of Clinical Investigations, Institute for Atherosclerosis Research, Skolkovo Innovative Centre, Moscow, Russian Federation
| | - Anton Y. Postnov
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Russian Ministry of Health and Social Care, Moscow, Russian Federation
| | - Serik D. Nurbaev
- Department of Clinical Investigations, Institute for Atherosclerosis Research, Skolkovo Innovative Centre, Moscow, Russian Federation
| | - Yuri V. Bobryshev
- Laboratory of Cellular Mechanisms of Atherogenesis, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russian Federation
- Department of Clinical Investigations, Institute for Atherosclerosis Research, Skolkovo Innovative Centre, Moscow, Russian Federation
- Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
- * E-mail:
| | - Alexander N. Orekhov
- Laboratory of Cellular Mechanisms of Atherogenesis, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russian Federation
- Department of Clinical Investigations, Institute for Atherosclerosis Research, Skolkovo Innovative Centre, Moscow, Russian Federation
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