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Wang W, Li H, Shi Y, Zhou J, Khan GJ, Zhu J, Liu F, Duan H, Li L, Zhai K. Targeted intervention of natural medicinal active ingredients and traditional Chinese medicine on epigenetic modification: Possible strategies for prevention and treatment of atherosclerosis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 122:155139. [PMID: 37863003 DOI: 10.1016/j.phymed.2023.155139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/26/2023] [Accepted: 10/05/2023] [Indexed: 10/22/2023]
Abstract
BACKGROUND Atherosclerosis is a deadly consequence of cardiovascular disease and has very high mortality rate worldwide. The epigenetic modifications can regulate the pervasiveness and progression of atherosclerosis through its involvement in regulation of inflammation, oxidative stress, lipid metabolism and several other factors. Specific non-coding RNAs, DNA methylation, and histone modifications are key regulatory factors of atherosclerosis. Natural products from traditional Chinese medicine have shown promising therapeutic potential against atherosclerosis by means of regulating the expression of specific genes, stabilizing arterial plaques and protecting vascular endothelial cells. OBJECTIVE Our study is focusing to explore the pathophysiology and probability of traditional Chinese medicine and natural medicinal active ingredients to treat atherosclerosis. METHODS Comprehensive literature review was conducted using PubMed, Web of Science, Google Scholar and China National Knowledge Infrastructure with a core focus on natural medicinal active ingredients and traditional Chinese medicine prying in epigenetic modification related to atherosclerosis. RESULTS Accumulated evidence demonstrated that natural medicinal active ingredients and traditional Chinese medicine have been widely studied as substances that can regulate epigenetic modification. They can participate in the occurrence and development of atherosclerosis through inflammation, oxidative stress, lipid metabolism, cell proliferation and migration, macrophage polarization and autophagy respectively. CONCLUSION The function of natural medicinal active ingredients and traditional Chinese medicine in regulating epigenetic modification may provide a new potential strategy for the prevention and treatment of atherosclerosis. However, more extensive research is essential to determine the potential of these natural medicinal active ingredients to treat atherosclerosis because of least clinical data.
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Affiliation(s)
- Wei Wang
- School of Biological and Food Engineering, Engineering Research Center for Development and High Value Utilization of Genuine Medicinal Materials in North Anhui Province, Suzhou University, Suzhou, Anhui 234000, China; College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Han Li
- School of Biological and Food Engineering, Engineering Research Center for Development and High Value Utilization of Genuine Medicinal Materials in North Anhui Province, Suzhou University, Suzhou, Anhui 234000, China; College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Ying Shi
- School of Biological and Food Engineering, Engineering Research Center for Development and High Value Utilization of Genuine Medicinal Materials in North Anhui Province, Suzhou University, Suzhou, Anhui 234000, China; College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Jing Zhou
- School of Biological and Food Engineering, Engineering Research Center for Development and High Value Utilization of Genuine Medicinal Materials in North Anhui Province, Suzhou University, Suzhou, Anhui 234000, China; College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Ghulam Jilany Khan
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, University of Central Punjab, Lahore 54000, Pakistan
| | - Juan Zhu
- School of Biological and Food Engineering, Engineering Research Center for Development and High Value Utilization of Genuine Medicinal Materials in North Anhui Province, Suzhou University, Suzhou, Anhui 234000, China; Faculty of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Fawang Liu
- School of Biological and Food Engineering, Engineering Research Center for Development and High Value Utilization of Genuine Medicinal Materials in North Anhui Province, Suzhou University, Suzhou, Anhui 234000, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, Anhui 230012, China
| | - Hong Duan
- School of Biological and Food Engineering, Engineering Research Center for Development and High Value Utilization of Genuine Medicinal Materials in North Anhui Province, Suzhou University, Suzhou, Anhui 234000, China; College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Lili Li
- General Clinical Research Center, Anhui Wanbei Coal-Electricity Group General Hospital, Suzhou 234000, China.
| | - Kefeng Zhai
- School of Biological and Food Engineering, Engineering Research Center for Development and High Value Utilization of Genuine Medicinal Materials in North Anhui Province, Suzhou University, Suzhou, Anhui 234000, China; College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China; Faculty of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China.
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González-Salvatierra S, García-Fontana B, Martínez-Heredia L, Lacal J, Andújar-Vera F, Sanabria-de la Torre R, Moratalla-Aranda E, Lozano-Alonso S, García-Fontana C, Muñoz-Torres M. Exploring the role of osteoglycin in type 2 diabetes: implications for insulin resistance and vascular pathophysiology. Am J Physiol Endocrinol Metab 2023; 325:E649-E660. [PMID: 37819194 PMCID: PMC10874653 DOI: 10.1152/ajpendo.00320.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 10/13/2023]
Abstract
Osteoglycin, a fundamental proteoglycan within the vascular extracellular matrix, is expressed in vascular smooth muscle cells (VSMCs). Type 2 diabetes (T2D) is associated with cardiovascular disease (CVD) but the role of osteoglycin in the development of CVD is controversial to date. Therefore, our aims are to determine and compare the level of osteoglycin in T2D patients with/without CVD versus control subjects both at serum and vascular tissue and to analyze in vitro role of osteoglycin in VSMCs under calcified conditions. For this, serum osteoglycin levels were determined by enzyme-linked immunosorbent assay (ELISA) in 117 controls and 129 patients with T2D (46 with CVD and 83 without CVD), revealing a significant increase in patients with T2D compared with controls. Osteoglycin level was not an estimator of CVD but correlated with markers of insulin resistance (triglycerides and triglycerides/high-density lipoprotein cholesterol index) in patients with T2D. At the vascular level, osteoglycin expression was assessed by RT-qPCR and immunohistochemistry, and no significant differences were observed between calcified arteries from patients with T2D and noncalcified arteries from controls. In vitro experiments using VSMCs (mock and overexpressing osteoglycin) under calcifying conditions were performed to analyze the osteoglycin function. The overexpression of osteoglycin in VMSCs under calcifying conditions revealed an increase of cell proliferation without effect on apoptosis and an upregulation of the expression of autotaxin (ATX) involved in inflammatory processes. In conclusion, osteoglycin could play a role in glycemic homeostasis, being a potential biomarker of insulin resistance in patients with T2D. Furthermore, osteoglycin could indirectly participate in the development of atherosclerosis through its regulatory effect on ATX and by proliferating VSMCs.NEW & NOTEWORTHY This study uncovers an increase of serum osteoglycin levels in patients with type 2 diabetes, which does not appear to be associated with the development of atherosclerosis, but rather with insulin resistance in this population. Overexpression of osteoglycin increased proliferation and upregulated the expression of autotaxin in vascular smooth muscle cells within calcified environments. Osteoglycin could be a biomarker of insulin resistance for type 2 diabetes and could be indirectly involved in the development of atherosclerosis.
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Affiliation(s)
- Sheila González-Salvatierra
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Endocrinology and Nutrition Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
- Department of Biochemistry and Molecular Biology II, University of Granada, Granada, Spain
| | - Beatriz García-Fontana
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Endocrinology and Nutrition Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
- CIBER of Frailty and Healthy Aging (CIBERFES) Institute of Health Carlos III, Madrid, Spain
- Department of Cell Biology, University of Granada, Granada, Spain
| | | | - Jesus Lacal
- Laboratory of Functional Genetics of Rare Diseases, Department of Microbiology and Genetics, University of Salamanca (USAL), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Francisco Andújar-Vera
- Bioinformatic Research Service, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Department of Computer Science and Artificial Intelligence, University of Granada, Granada, Spain
- Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI Institute), Granada, Spain
| | - Raquel Sanabria-de la Torre
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Department of Biochemistry, Molecular Biology III and Immunology, University of Granada, Granada, Spain
| | - Enrique Moratalla-Aranda
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Nuclear Medicine Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
| | - Silvia Lozano-Alonso
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Angiology and Vascular Surgery Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
| | - Cristina García-Fontana
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Endocrinology and Nutrition Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
- CIBER of Frailty and Healthy Aging (CIBERFES) Institute of Health Carlos III, Madrid, Spain
| | - Manuel Muñoz-Torres
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Endocrinology and Nutrition Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
- CIBER of Frailty and Healthy Aging (CIBERFES) Institute of Health Carlos III, Madrid, Spain
- Department of Medicine, University of Granada, Granada, Spain
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Nulali J, Zhan M, Zhang K, Tu P, Liu Y, Song H. Osteoglycin: An ECM Factor Regulating Fibrosis and Tumorigenesis. Biomolecules 2022; 12:1674. [PMID: 36421687 PMCID: PMC9687868 DOI: 10.3390/biom12111674] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/04/2022] [Accepted: 11/10/2022] [Indexed: 08/27/2023] Open
Abstract
The extracellular matrix (ECM) is made up of noncellular components that have special properties for influencing cell behavior and tissue structure. Small leucine-rich proteoglycans (SLRPs) are nonfibrillar ECM components that serve as structural scaffolds and signaling molecules. osteoglycin (OGN), a class III SLRP, is a ubiquitous ECM component that not only helps to organize the extracellular matrix but also regulates a number of important biological processes. As a glycosylated protein in the ECM, OGN was originally considered to be involved in fiber assembly and was reported to have a connection with fibrosis. In addition to these functions, OGN is found in a variety of cancer tissues and is implicated in cellular processes linked to tumorigenesis, including cell proliferation, invasion, metastasis, and epithelial-mesenchymal transition (EMT). In this review, we summarize the structure and functions of OGN as well as its biological and clinical importance in the context of fibrotic illness and tumorigenesis. This review aims to improve our understanding of OGN and provide some new strategies for the treatment of fibrosis and cancer.
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Affiliation(s)
- Jiayida Nulali
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostics and Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Ming Zhan
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostics and Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Kaiwen Zhang
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostics and Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Pinghui Tu
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostics and Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Yu Liu
- Department of Respiration, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200070, China
| | - Huaidong Song
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostics and Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
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Li X, Guo D, Zhou W, Hu Y, Zhou H, Chen Y. Oxidative Stress and Inflammation Markers Associated with Multiple Peripheral Artery Occlusions in Elderly Patients. Angiology 2022; 74:472-487. [PMID: 35786005 DOI: 10.1177/00033197221111860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Pro-oxidative stress and pro-inflammatory responses can influence each other in the development of atherosclerosis. This study evaluated the relationship between oxidative stress, inflammation, and multiple peripheral artery occlusions in elderly patients (age mean 71.2 ± 8.1 years). Methods: A total of 723 participants were enrolled: 67 healthy subjects, 214 patients with common iliac artery occlusions, 224 patients with popliteal artery occlusions, and 218 patients with femoral artery occlusions. We measured oxidative stress biomarkers (malondialdehyde [MDA], F2-isoprostane [F2-isoP], total oxidant status [TOS], and ischemia-modified albumin [IMA]) and the expressions of molecules in mimecan (MIME)/nuclear factor kappa B (NF-κB)/P53/Toll-like receptor 4 (TLR4) signaling pathway in older patients with multiple peripheral artery occlusions. Results: The levels of MDA, F2-isoP, TOS, IMA, MIME, NF-κB, P53, and TLR4 were increased in the single-site peripheral artery occlusive group when compared with healthy controls (P < .001) and were further increased in the multiple-site peripheral artery occlusive group compared with the single-site peripheral artery occlusive group (P < .001). Conclusion: Oxidative stress may promote inflammatory signaling pathways and lead to multiple peripheral artery occlusions in elderly patients.
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Affiliation(s)
- Xia Li
- Xiamen Road Branch Hospital, 38044The Affiliated Huaian Hospital of Xuzhou Medical University, Huaian, China
| | - Dianxuan Guo
- Xiamen Road Branch Hospital, 38044The Affiliated Huaian Hospital of Xuzhou Medical University, Huaian, China
| | - Wenhang Zhou
- Xiamen Road Branch Hospital, 38044The Affiliated Huaian Hospital of Xuzhou Medical University, Huaian, China
| | - Youdong Hu
- Xiamen Road Branch Hospital, 38044The Affiliated Huaian Hospital of Xuzhou Medical University, Huaian, China
| | - Hualan Zhou
- Xiamen Road Branch Hospital, 38044The Affiliated Huaian Hospital of Xuzhou Medical University, Huaian, China
| | - Ying Chen
- Xiamen Road Branch Hospital, 38044The Affiliated Huaian Hospital of Xuzhou Medical University, Huaian, China
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Increased proteolytic cleavage of osteoglycin is associated with a stable plaque phenotype and lower risk of cardiovascular events. Atherosclerosis 2022; 355:8-14. [PMID: 35850021 DOI: 10.1016/j.atherosclerosis.2022.06.1025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND AIMS Extracellular matrix (ECM) remodeling is one of the key components in the formation of vulnerable atherosclerotic plaques and cardiovascular events. We recently showed that the full-length ECM-proteoglycan osteoglycin was associated with plaque vulnerability and future cardiovascular events. In the present study, we aimed to investigate the association of cleaved osteoglycin with plaque phenotype. METHODS Two-hundred human carotid plaques were analyzed by immunohistochemistry. Cleaved osteoglycin and active caspase-3 were assessed by ELISA. ECM components (collagen, elastin and glycosaminoglycans) were assessed by colorimetric assays in plaque tissue homogenates. Matrix metalloproteinases (MMPs) were assessed using Milliplex. MMP-cleavage of osteoglycin and its effect on apoptosis were studied in vitro. Cardiovascular events were recorded during follow-up using national registries. RESULTS Plaque levels of cleaved osteoglycin were significantly higher in asymptomatic plaques and correlated to α-actin plaque area, collagen, elastin and inversely to lipids, active. caspase-3 and a histological vulnerability index. Cleaved osteoglycin correlated to several MMPs, especially MMP-12, which was also shown to cleave osteoglycin in vitro. In vitro cleavage of osteoglycin was also associated with less smooth muscle cell apoptosis. Patients with high plaque levels of cleaved osteoglycin had a significantly lower risk to suffer from future cardiovascular events. CONCLUSIONS The current study shows that cleaved osteoglycin is associated with a stable plaque phenotype and lower risk for future cardiovascular events. Potentially due to reduced cell apoptosis and ability to retain LDL. These results indicate that targeting the cleavage of osteoglycin may be a potential therapeutic strategy to stabilize plaques.
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Stöckl JB, Schmid N, Flenkenthaler F, Drummer C, Behr R, Mayerhofer A, Arnold GJ, Fröhlich T. Age-Related Alterations in the Testicular Proteome of a Non-Human Primate. Cells 2021; 10:cells10061306. [PMID: 34074003 PMCID: PMC8225046 DOI: 10.3390/cells10061306] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/17/2021] [Accepted: 05/22/2021] [Indexed: 02/06/2023] Open
Abstract
Aging of human testis and associated cellular changes is difficult to assess. Therefore, we used a translational, non-human primate model to get insights into underlying cellular and biochemical processes. Using proteomics and immunohistochemistry, we analyzed testicular tissue of young (age 2 to 3) and old (age 10 to 12) common marmosets (Callithrix jacchus). Using a mass spectrometry-based proteomics approach, we identified 63,124 peptides, which could be assigned to 5924 proteins. Among them, we found proteins specific for germ cells and somatic cells, such as Leydig and Sertoli cells. Quantitative analysis showed 31 differentially abundant proteins, of which 29 proteins were more abundant in older animals. An increased abundance of anti-proliferative proteins, among them CDKN2A, indicate reduced cell proliferation in old testes. Additionally, an increased abundance of several small leucine rich repeat proteoglycans and other extracellular matrix proteins was observed, which may be related to impaired cell migration and fibrotic events. Furthermore, an increased abundance of proteins with inhibitory roles in smooth muscle cell contraction like CNN1 indicates functional alterations in testicular peritubular cells and may mirror a reduced capacity of these cells to contract in old testes.
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Affiliation(s)
- Jan B. Stöckl
- Laboratory for Functional Genome Analysis LAFUGA, Gene Center, LMU München, 81377 München, Germany; (J.B.S.); (F.F.)
| | - Nina Schmid
- Biomedical Center (BMC), Anatomy III–Cell Biology, Medical Faculty, LMU München, 82152 Martinsried, Germany; (N.S.); (A.M.)
| | - Florian Flenkenthaler
- Laboratory for Functional Genome Analysis LAFUGA, Gene Center, LMU München, 81377 München, Germany; (J.B.S.); (F.F.)
| | - Charis Drummer
- Platform Degenerative Diseases, German Primate Center, Leibniz Institute for Primate Research, 37077 Göttingen, Germany; (C.D.); (R.B.)
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, 37077 Göttingen, Germany
| | - Rüdiger Behr
- Platform Degenerative Diseases, German Primate Center, Leibniz Institute for Primate Research, 37077 Göttingen, Germany; (C.D.); (R.B.)
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, 37077 Göttingen, Germany
| | - Artur Mayerhofer
- Biomedical Center (BMC), Anatomy III–Cell Biology, Medical Faculty, LMU München, 82152 Martinsried, Germany; (N.S.); (A.M.)
| | - Georg J. Arnold
- Laboratory for Functional Genome Analysis LAFUGA, Gene Center, LMU München, 81377 München, Germany; (J.B.S.); (F.F.)
- Correspondence: (G.J.A.); (T.F.)
| | - Thomas Fröhlich
- Laboratory for Functional Genome Analysis LAFUGA, Gene Center, LMU München, 81377 München, Germany; (J.B.S.); (F.F.)
- Correspondence: (G.J.A.); (T.F.)
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Tengryd C, Nielsen SH, Cavalera M, Bengtsson E, Genovese F, Karsdal M, Dunér P, Orho-Melander M, Nilsson J, Edsfeldt A, Gonçalves I. The proteoglycan mimecan is associated with carotid plaque vulnerability and increased risk of future cardiovascular death. Atherosclerosis 2020; 313:88-95. [DOI: 10.1016/j.atherosclerosis.2020.09.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 07/31/2020] [Accepted: 09/10/2020] [Indexed: 01/28/2023]
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Zhang D, Yang Y, Li Y, Zhang G, Cheng Z. Inhibitory Effect of Curcumin on Artery Restenosis Following Carotid Endarterectomy and Its Associated Mechanism in vitro and in vivo. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:855-866. [PMID: 32161445 PMCID: PMC7049773 DOI: 10.2147/dddt.s229607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 02/10/2020] [Indexed: 12/26/2022]
Abstract
Objective The present study aimed to assess the effect of curcumin (Cur) on carotid artery restenosis following carotid endarterectomy (CEA) and its associated mechanism in vivo and in vitro. Methods Ang II was used to induce excessive proliferation of rabbit aortic smooth muscle cells (CCC-SMC-1) in order to establish a hemadostenosis cell model. Similarly, the animal model of carotid artery restenosis was established by carotid artery gas drying injury combined with high-fat feed prior to CEA. CCC-SMC-1 cells and animals were treated by Cur and its effects on neointimal hyperplasia, inflammation and oxidative stress were detected and observed. The proteins that were associated with the Raf/MEK/ERK pathway were detected in cells and rabbit carotid artery tissues. Results Cur inhibited the proliferation of smooth muscle cells and neointimal formation and reduced the inflammation and oxidative stress indices. Concomitantly, Cur reduced the phosphorylation of the Raf/MEK/ERK pathway proteins. Conclusion Cur could inhibit carotid restenosis following CEA by inhibiting the activation of the Raf/MEK/ERK pathway.
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Affiliation(s)
- Dapeng Zhang
- Neurosurgery Department, Xinxiang Central Hospital, Xinxiang, Henan Province 453000, People's Republic of China
| | - Yanhui Yang
- Color Ultrasonic Room, People's Hospital of Huixian, Xinxiang, Henan Province 453600, People's Republic of China
| | - Yuanchao Li
- Neurosurgery Department, Xinxiang Central Hospital, Xinxiang, Henan Province 453000, People's Republic of China
| | - Guodong Zhang
- Neurosurgery Department, Xinxiang Central Hospital, Xinxiang, Henan Province 453000, People's Republic of China
| | - Zhenguo Cheng
- Neurosurgery Department, Xinxiang Central Hospital, Xinxiang, Henan Province 453000, People's Republic of China
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Pang X, Dong N, Zheng Z. Small Leucine-Rich Proteoglycans in Skin Wound Healing. Front Pharmacol 2020; 10:1649. [PMID: 32063855 PMCID: PMC6997777 DOI: 10.3389/fphar.2019.01649] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/16/2019] [Indexed: 12/11/2022] Open
Abstract
Healing of cutaneous wounds is a complex and well-coordinated process requiring cooperation among multiple cells from different lineages and delicately orchestrated signaling transduction of a diversity of growth factors, cytokines, and extracellular matrix (ECM) at the wound site. Most skin wound healing in adults is imperfect, characterized by scar formation which results in significant functional and psychological sequelae. Thus, the reconstruction of the damaged skin to its original state is of concern to doctors and scientists. Beyond the traditional treatments such as corticosteroid injection and radiation therapy, several growth factors or cytokines-based anti-scarring products are being or have been tested in clinical trials to optimize skin wound healing. Unfortunately, all have been unsatisfactory to date. Currently, accumulating evidence suggests that the ECM not only functions as the structural component of the tissue but also actively modulates signal transduction and regulates cellular behaviors, and thus, ECM should be considered as an alternative target for wound management pharmacotherapy. Of particular interest are small leucine-rich proteoglycans (SLRPs), a group of the ECM, which exist in a wide range of connecting tissues, including the skin. This manuscript summarizes the most current knowledge of SLRPs regarding their spatial-temporal expression in the skin, as well as lessons learned from the genetically modified animal models simulating human skin pathologies. In this review, particular focus is given on the diverse roles of SLRP in skin wound healing, such as anti-inflammation, pro-angiogenesis, pro-migration, pro-contraction, and orchestrate transforming growth factor (TGF)β signal transduction, since cumulative investigations have indicated their therapeutic potential on reducing scar formation in cutaneous wounds. By conducting this review, we intend to gain insight into the potential application of SLRPs in cutaneous wound healing management which may pave the way for the development of a new generation of pharmaceuticals to benefit the patients suffering from skin wounds and their sequelae.
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Affiliation(s)
- Xiaoxiao Pang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Division of Growth and Development, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Nuo Dong
- Division of Growth and Development, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Zhong Zheng
- Division of Growth and Development, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
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Stakhneva EM, Meshcheryakova IA, Demidov EA, Starostin KV, Sadovski EV, Peltek SE, Voevoda MI, Chernyavskii AM, Volkov AM, Ragino YI. A Proteomic Study of Atherosclerotic Plaques in Men with Coronary Atherosclerosis. Diagnostics (Basel) 2019; 9:diagnostics9040177. [PMID: 31703357 PMCID: PMC6963888 DOI: 10.3390/diagnostics9040177] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/05/2019] [Accepted: 11/05/2019] [Indexed: 12/24/2022] Open
Abstract
Background: To study the changes in protein composition of atherosclerotic plaques at different stages of their development in coronary atherosclerosis using proteomics. Methods: The object of research consisted of homogenates of atherosclerotic plaques from coronary arteries at different stages of development, obtained from 15 patients. Plaque proteins were separated by two-dimensional electrophoresis. The resultant protein spots were identified by the matrix-assisted laser desorption ionization method with peptide mass mapping. Results: Groups of differentially expressed proteins, in which the amounts of proteins differed more than twofold (p < 0.05), were identified in pools of homogenates of atherosclerotic plaques at three stages of development. The amounts of the following proteins were increased in stable atherosclerotic plaques at the stage of lipidosis and fibrosis: vimentin, tropomyosin β-chain, actin, keratin, tubulin β-chain, microfibril-associated glycoprotein 4, serum amyloid P-component, and annexin 5. In plaques at the stage of fibrosis and calcification, the amounts of mimecan and fibrinogen were increased. In unstable atherosclerotic plaque of the necrotic–dystrophic type, the amounts of human serum albumin, mimecan, fibrinogen, serum amyloid P-component and annexin were increased. Conclusion: This proteomic study identifies the proteins present in atherosclerotic plaques of coronary arteries by comparing their proteomes at three different stages of plaque development during coronary atherosclerosis.
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Affiliation(s)
- Ekaterina M. Stakhneva
- Research Institute of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630089 Novosibirsk, Russia; (E.V.S.); (M.I.V.); (Y.I.R.)
- Correspondence: ; Tel.: +7-(383)-264-2516; Fax: +73832642516
| | - Irina A. Meshcheryakova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (I.A.M.); (E.A.D.); (K.V.S.); (S.E.P.)
| | - Evgeny A. Demidov
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (I.A.M.); (E.A.D.); (K.V.S.); (S.E.P.)
| | - Konstantin V. Starostin
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (I.A.M.); (E.A.D.); (K.V.S.); (S.E.P.)
| | - Evgeny V. Sadovski
- Research Institute of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630089 Novosibirsk, Russia; (E.V.S.); (M.I.V.); (Y.I.R.)
| | - Sergey E. Peltek
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (I.A.M.); (E.A.D.); (K.V.S.); (S.E.P.)
| | - Michael I. Voevoda
- Research Institute of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630089 Novosibirsk, Russia; (E.V.S.); (M.I.V.); (Y.I.R.)
| | - Alexander M. Chernyavskii
- The Federal State Budgetary Institution “National Medical Research Center named academician E.N. Meshalkin” of the Ministry of Health of the Russian Federation, 630055 Novosibirsk, Russia; (A.M.C.); (A.M.V.)
| | - Alexander M. Volkov
- The Federal State Budgetary Institution “National Medical Research Center named academician E.N. Meshalkin” of the Ministry of Health of the Russian Federation, 630055 Novosibirsk, Russia; (A.M.C.); (A.M.V.)
| | - Yuliya I. Ragino
- Research Institute of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630089 Novosibirsk, Russia; (E.V.S.); (M.I.V.); (Y.I.R.)
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11
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Fasehee H, Fakhraee M, Davoudi S, Vali H, Faghihi S. Cancer biomarkers in atherosclerotic plaque: Evidenced from structural and proteomic analyses. Biochem Biophys Res Commun 2019; 509:687-693. [PMID: 30616890 DOI: 10.1016/j.bbrc.2018.12.160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 12/24/2018] [Indexed: 01/01/2023]
Abstract
Atherosclerosis and cancer are the leading causes of mortality around the world that share common pathogenic pathways. The aim of this study is the investigation of the protein profile of atherosclerotic plaque in order to find similar biomarker between cancer and atherosclerosis. The small pieces of human coronary artery containing advanced atherosclerotic plaque is obtained from patients during bypass surgery. Structural characterization of type V plaque, including fibrous connective tissue, necrotic lipid core, cholesterol clefts and calcium deposits are performed using high resolution transmission electron microscopy (HR-TEM). The protein profile of atherosclerosis plaque is also analyzed using 2-dimensional electrophoresis and matrix-assisted laser desorption-ionization time-of-flight (MALDI-TOF). TEM analysis shows that vascular smooth muscle cells (VSMCs) exhibit different and uncommon morphologies in atherosclerotic plaque which is correlated to the proliferative state of the cells. The proteomics analysis reveals proteins related to atherosclerosis formation including Mimecan, Ras Suppressor Protein-1 (RSUP-1) and Cathepsin D which identified as biomarker of cancerous tumors. The expression of Mimecan and RSUP-1 is down-regulated in atherosclerotic plaque while the expression of Cathepsin D is up-regulated. These data support that atherosclerotic plaque presents some degree of tumorgenesis with the significant activity of VSMCs as the key player in atherogenesis.
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Affiliation(s)
- Hamidreza Fasehee
- Stem Cell and Regenerative Medicine Group, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, 14965/161, Iran
| | - Mahsa Fakhraee
- Stem Cell and Regenerative Medicine Group, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, 14965/161, Iran
| | - Saeed Davoudi
- Tehran Heart Center, Tehran University of Medical Sciences (TUMS), Tehran, 1411713138, Iran
| | - Hojatollah Vali
- Department of Anatomy and Cell Biology, McGill University, 3640 University Street, Montréal, QC H3A 0C7, Canada; Facility for Electron Microscopy Research, McGill University, 3640 University Street, Montréal, QC H3A 0C7, Canada
| | - Shahab Faghihi
- Stem Cell and Regenerative Medicine Group, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, 14965/161, Iran.
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12
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Chang Z, Paoletti P, Hansen ML, Beck HC, Chen PY, Rasmussen LM, Akhtar R. AFM Characterization of the Internal Mammary Artery as a Novel Target for Arterial Stiffening. SCANNING 2018; 2018:6340425. [PMID: 30524642 PMCID: PMC6247466 DOI: 10.1155/2018/6340425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 09/06/2018] [Indexed: 05/05/2023]
Abstract
Using the atomic force microscopy- (AFM-) PeakForce quantitative nanomechanical mapping (QNM) technique, we have previously shown that the adventitia of the human internal mammary artery (IMA), tested under dehydrated conditions, is altered in patients with a high degree of arterial stiffening. In this study, we explored the nanoscale elastic modulus of the tunica media of the IMA in hydrated and dehydrated conditions from the patients with low and high arterial stiffening, as assessed in vivo by carotid-femoral pulse wave velocity (PWV). In both hydrated and dehydrated conditions, the medial layer was significantly stiffer in the high PWV group. The elastic modulus of the hydrated and dehydrated tunica media was significantly correlated with PWV. In the hydrated condition, the expression activity of certain small leucine-rich repeat proteoglycans (SLRPs), which are associated with arterial stiffening, were found to be negatively correlated to the medial elastic modulus. We also compared the data with our previous work on the IMA adventitia. We found that the hydrated media and dehydrated adventitia are both suitable for reflecting the development of arterial stiffening and SLRP expression. This comprehensive study of the nanomechanical properties integrated with the proteomic analysis in the IMAs demonstrates the possibility of linking structural properties and function in small biological samples with novel AFM methods. The IMA is a suitable target for predicting arterial stiffening.
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Affiliation(s)
- Zhuo Chang
- Department of Mechanical, Materials and Aerospace Engineering, School of Engineering, University of Liverpool, L69 3GH, UK
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Paolo Paoletti
- Department of Mechanical, Materials and Aerospace Engineering, School of Engineering, University of Liverpool, L69 3GH, UK
| | - Maria Lyck Hansen
- Department of Clinical Biochemistry and Pharmacology, Center for Individualized Medicine in Arterial Diseases, Odense University Hospital, University of Southern Denmark, Denmark
| | - Hans Christian Beck
- Department of Clinical Biochemistry and Pharmacology, Center for Individualized Medicine in Arterial Diseases, Odense University Hospital, University of Southern Denmark, Denmark
| | - Po-Yu Chen
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Lars Melholt Rasmussen
- Department of Clinical Biochemistry and Pharmacology, Center for Individualized Medicine in Arterial Diseases, Odense University Hospital, University of Southern Denmark, Denmark
| | - Riaz Akhtar
- Department of Mechanical, Materials and Aerospace Engineering, School of Engineering, University of Liverpool, L69 3GH, UK
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13
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Hernández-Aguilera A, Nielsen SH, Bonache C, Fernández-Arroyo S, Martín-Paredero V, Fibla M, Karsdal MA, Genovese F, Menendez JA, Camps J, Joven J. Assessment of extracellular matrix-related biomarkers in patients with lower extremity artery disease. J Vasc Surg 2018; 68:1135-1142.e6. [PMID: 29615349 DOI: 10.1016/j.jvs.2017.12.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 12/21/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND The prevalence of lower extremity artery disease (LEAD) is high (20%-25%) in the population older than 65 years, but patients are seldom identified until the disease is advanced. Circulating markers of disease activity might provide patients with a key opportunity for timely treatment. We tested the hypothesis that measuring blood-specific fragments generated during degradation of the extracellular matrix (ECM) could provide further insight into the pathophysiologic mechanism of arterial remodeling. METHODS The protein profile of diseased arteries from patients undergoing infrainguinal limb revascularization was assessed by a liquid chromatography and tandem mass spectrometry, nontargeted proteomic approach. The information retrieved was the basis for measurement of neoepitope fragments of ECM proteins in the blood of 195 consecutive patients with LEAD by specific enzyme-linked immunosorbent assays. RESULTS Histologic and proteomic analyses confirmed the structural disorganization of affected arteries. Fourteen of 81 proteins were identified as differentially expressed in diseased arteries with respect to healthy tissues. Most of them were related to ECM components, and the difference in expression was used in multivariate analyses to establish that severe arterial lesions in LEAD patients have a specific proteome. Analysis of neoepitope fragments in blood revealed that fragments of versican and collagen type IV, alone or in combination, segregated patients with mild to moderate symptoms (intermittent claudication, Fontaine I-II) from those with severe LEAD (critical limb ischemia, Fontaine III-IV). CONCLUSIONS We propose noninvasive candidate biomarkers with the ability to be clinically useful across the LEAD spectrum.
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Affiliation(s)
- Anna Hernández-Aguilera
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Signe Holm Nielsen
- Fibrosis Biology and Biomarkers, Nordic Bioscience, Herlev, Denmark; Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Cristina Bonache
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Salvador Fernández-Arroyo
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | | | - Montserrat Fibla
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain; Department of Pathology, Hospital Universitari Joan XXIII, Tarragona, Spain
| | - Morten A Karsdal
- Fibrosis Biology and Biomarkers, Nordic Bioscience, Herlev, Denmark
| | | | - Javier A Menendez
- Molecular Oncology Group, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Jordi Camps
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Jorge Joven
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain.
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14
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Seki T, Saita E, Kishimoto Y, Ibe S, Miyazaki Y, Miura K, Ohmori R, Ikegami Y, Kondo K, Momiyama Y. Low Levels of Plasma Osteoglycin in Patients with Complex Coronary Lesions. J Atheroscler Thromb 2018; 25:1149-1155. [PMID: 29503411 PMCID: PMC6224206 DOI: 10.5551/jat.43059] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Aim: Osteoglycin is one of proteoglycans that are biologically active components of vascular extracellular matrix. However, the role of osteoglycin in atherosclerosis remains unclear. Methods: We investigated plasma osteoglycin levels and the presence, severity, and lesion morphology of coronary artery disease (CAD) in 462 patients undergoing elective coronary angiography. Results: Of 462 patients, 245 had CAD. Osteoglycin levels were higher in patients with CAD than without CAD (median 29.7 vs. 25.0 ng/mL, P < 0.05). However, osteoglycin levels did not differ among patients with one-vessel, two-vessel, or three-vessel disease (30.8, 30.6, and 29.4 ng/mL, respectively) and did not correlate with the number of stenotic segments. Among 245 CAD patients, 41 had complex coronary lesions, and 70 had total occlusion, of whom 67 had good collateralization. Between 70 patients with occlusion and 175 without occlusion, osteoglycin levels did not differ (30.4 vs. 29.5 ng/mL). Notably, osteoglycin levels were lower in 41 patients with complex lesions than in 204 without such lesions (24.2 vs. 31.6 ng/mL, P < 0.02). In multivariate analysis, osteoglycin levels were an independent factor for complex lesion but not for CAD. Odds ratio for complex lesion was 0.80 (95%CI = 0.67–0.96) for each 10 ng/mL increase in osteoglycin levels (P < 0.02). Conclusion: Although plasma osteoglycin levels were high in patients with CAD, they did not correlate with the severity of CAD and were not an independent factor for CAD. Notably, osteoglycin levels were low in patients with complex lesions and were a factor for complex lesions, suggesting that osteoglycin plays a role in coronary plaque stabilization.
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Affiliation(s)
- Toshiki Seki
- Department of Cardiology, National Hospital Organization Tokyo Medical Center
| | - Emi Saita
- Endowed Research Department "Food for Health", Ochanomizu University
| | - Yoshimi Kishimoto
- Endowed Research Department "Food for Health", Ochanomizu University
| | - Susumu Ibe
- Department of Cardiology, National Hospital Organization Tokyo Medical Center
| | - Yoshichika Miyazaki
- Department of Cardiology, National Hospital Organization Tokyo Medical Center
| | - Kotaro Miura
- Department of Cardiology, National Hospital Organization Tokyo Medical Center
| | - Reiko Ohmori
- Faculty of Regional Design, Utsunomiya University
| | - Yukinori Ikegami
- Department of Cardiology, National Hospital Organization Tokyo Medical Center
| | - Kazuo Kondo
- Endowed Research Department "Food for Health", Ochanomizu University.,Institute of Life Innovation Studies, Toyo University
| | - Yukihiko Momiyama
- Department of Cardiology, National Hospital Organization Tokyo Medical Center
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15
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Hansmeier N, Buttigieg J, Kumar P, Pelle S, Choi KY, Kopriva D, Chao TC. Identification of Mature Atherosclerotic Plaque Proteome Signatures Using Data-Independent Acquisition Mass Spectrometry. J Proteome Res 2017; 17:164-176. [DOI: 10.1021/acs.jproteome.7b00487] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Nicole Hansmeier
- Department
of Biology/Chemistry, Division of Microbiology, University of Osnabrück, Barbarastrasse 11, 49076 Osnabrück, Germany
| | - Josef Buttigieg
- Department
of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan S4S 0A2, Canada
| | - Pankaj Kumar
- Department
of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan S4S 0A2, Canada
| | - Shaneen Pelle
- Department
of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan S4S 0A2, Canada
| | - Kyoo Yoon Choi
- Department
of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan S4S 0A2, Canada
| | - David Kopriva
- Regina Qu’Appelle Health Region and University of Saskatchewan, 1440-14th Avenue, Regina, Saskatchewan S4P 0W5, Canada
| | - Tzu-Chiao Chao
- Department
of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan S4S 0A2, Canada
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16
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Association of serum mimecan with angiographic coronary collateralization in patients with stable coronary artery disease and chronic total occlusion. Atherosclerosis 2016; 252:75-81. [PMID: 27508318 DOI: 10.1016/j.atherosclerosis.2016.07.916] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 07/20/2016] [Accepted: 07/21/2016] [Indexed: 01/27/2023]
Abstract
BACKGROUND AND AIMS Mimecan/osteoglycin is identified as an emerging biomarker of coronary atherosclerosis. We investigated whether and to what extent serum mimecan reflects angiographic coronary collateralization in patients with stable coronary artery disease and chronic total occlusion. METHODS Serum levels of mimecan were determined in 559 consecutive patients with stable angina and angiographic total occlusion of at least one major coronary artery. The degree of collaterals supplying the distal aspect of a total occlusion from the contra-lateral vessel was graded as poor (Rentrop score of 0 or 1) or good coronary collateralization (Rentrop score of 2 or 3). RESULTS Serum mimecan was significantly higher in patients with poor collateralization than in those with good collateralization, and correlated inversely with Rentrop score (adjusted Spearmen's r = -0.443, p < 0.001). The prevalence of poor coronary collaterals increased stepwise from the lowest to the highest quartile of serum mimecan (OR 2.140, 95% CI 1.793-2.555; p for trend < 0.001). After adjusting for age, gender, traditional risk factors for coronary artery disease, history of myocardial infarction, severity of coronary artery disease, renal function and C-reactive protein, serum mimecan (per SD) remained an independent determinant for poor collateralization (OR 2.674, 95% CI 2.057-3.475, p < 0.001). The diagnostic value of mimecan (per SD) for detecting poor collateralization was consistent when the patients were specified by gender, age, body mass index, presence or absence of hypertension and diabetes, and status of renal function (OR 2.075-6.932, p interaction ≥ 0.059). CONCLUSION Increased serum mimecan is associated with poor angiographic coronary collateralization in patients with chronic total occlusion.
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