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Guan X, Hu Y, Hao J, Lu M, Zhang Z, Hu W, Li D, Li C. Stress, Vascular Smooth Muscle Cell Phenotype and Atherosclerosis: Novel Insight into Smooth Muscle Cell Phenotypic Transition in Atherosclerosis. Curr Atheroscler Rep 2024:10.1007/s11883-024-01220-8. [PMID: 38814419 DOI: 10.1007/s11883-024-01220-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2024] [Indexed: 05/31/2024]
Abstract
PURPOSE OF REVIEW Our work is to establish more distinct association between specific stress and vascular smooth muscle cells (VSMCs) phenotypes to alleviate atherosclerotic plaque burden and delay atherosclerosis (AS) progression. RECENT FINDING In recent years, VSMCs phenotypic transition has received significant interests. Different stresses were found to be associated with VSMCs phenotypic transition. However, the explicit correlation between VSMCs phenotype and specific stress has not been elucidated clearly yet. We discover that VSMCs phenotypic transition, which is widely involved in the progression of AS, is associated with specific stress. We discuss approaches targeting stresses to intervene VSMCs phenotypic transition, which may contribute to develop innovative therapies for AS.
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Affiliation(s)
- Xiuya Guan
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Yuanlong Hu
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Jiaqi Hao
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Mengkai Lu
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Zhiyuan Zhang
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Wenxian Hu
- Qingdao Hiser Hospital Affiliated of Qingdao University (Qingdao Traditional Chinese Medicine Hospital), Qingdao, 266000, China.
| | - Dongxiao Li
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Chao Li
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Qingdao Hiser Hospital Affiliated of Qingdao University (Qingdao Traditional Chinese Medicine Hospital), Qingdao, 266000, China.
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Wu TW, Wu YJ, Chou CL, Cheng CF, Lu SX, Wang LY. Hemodynamic parameters and diabetes mellitus in community-dwelling middle-aged adults and elders: a community-based study. Sci Rep 2024; 14:12032. [PMID: 38797773 PMCID: PMC11128448 DOI: 10.1038/s41598-024-62866-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024] Open
Abstract
Hemodynamic parameters have been correlated with stroke, hypertension, and arterial stenosis. While only a few small studies have examined the link between hemodynamics and diabetes mellitus (DM). This case-control study enrolled 417 DM patients and 3475 non-DM controls from a community-based cohort. Peak systolic velocity (PSV), end-diastolic velocity (EDV), blood flow velocity (MFV), pulsatility index (PI), and the resistance index (RI) of the common carotid arteries were measured by color Doppler ultrasonography. Generalized linear regression analyses showed that as compared to the non-DM controls, the age-sex-adjusted means of PSV, EDV, and MFV were - 3.28 cm/sec, - 1.94 cm/sec, and - 2.38 cm/sec, respectively, lower and the age-sex-adjusted means of RI and PI were 0.013 and 0.0061, respectively, higher for the DM cases (all p-values < 0.0005). As compared to the lowest quartiles, the multivariable-adjusted ORs of DM for the highest quartiles of PSV, EDV, MFV, RI, and PI were 0.59 (95% confidence interval [CI] 0.41-0.83), 0.45 (95% CI 0.31-0.66), 0.53 (95% CI 0.37-0.77), 1.61 (95% CI 1.15-2.25), and 1.58 (95% CI 1.12-2.23), respectively. More importantly, the additions of EDV significantly improved the predictabilities of the regression models on DM. As compared to the model contained conventional CVD risk factors alone, the area under the receiver operating curve (AUROC) increased by 1.00% (95% CI 0.29-1.73%; p = 0.0059) and 0.80% (95% CI 0.15-1.46%; p = 0.017) for models that added EDV in continuous and quartile scales, respectively. Additionally, the additions of PSV and MFV also significantly improved the predictabilities of the regression models (all 0.01 < p-value < 0.05). This study reveals a significant correlation between DM and altered hemodynamic parameters. Understanding this relationship could help identify individuals at higher risk of DM and facilitate targeted preventive strategies to reduce cardiovascular complications in DM patients.
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Affiliation(s)
- Tzu-Wei Wu
- Department of Medicine, MacKay Medical College, No. 46, Sec. 3, Jhong-Jheng Rd., San-Jhih District, New Taipei City, Taiwan.
| | - Yih-Jer Wu
- Department of Medicine, MacKay Medical College, No. 46, Sec. 3, Jhong-Jheng Rd., San-Jhih District, New Taipei City, Taiwan
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan
- Cardiovascular Center, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Chao-Liang Chou
- Department of Medicine, MacKay Medical College, No. 46, Sec. 3, Jhong-Jheng Rd., San-Jhih District, New Taipei City, Taiwan
- Department of Neurology, MacKay Memorial Hospital, New Taipei City, Taiwan
| | - Chun-Fang Cheng
- Tamsui Health Station, Department of Health, New Taipei City Government, New Taipei City, Taiwan
| | - Shu-Xin Lu
- Department of Neurology, MacKay Memorial Hospital, New Taipei City, Taiwan
| | - Li-Yu Wang
- Department of Medicine, MacKay Medical College, No. 46, Sec. 3, Jhong-Jheng Rd., San-Jhih District, New Taipei City, Taiwan.
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Vuong TNAM, Bartolf-Kopp M, Andelovic K, Jungst T, Farbehi N, Wise SG, Hayward C, Stevens MC, Rnjak-Kovacina J. Integrating Computational and Biological Hemodynamic Approaches to Improve Modeling of Atherosclerotic Arteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2307627. [PMID: 38704690 DOI: 10.1002/advs.202307627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 03/12/2024] [Indexed: 05/07/2024]
Abstract
Atherosclerosis is the primary cause of cardiovascular disease, resulting in mortality, elevated healthcare costs, diminished productivity, and reduced quality of life for individuals and their communities. This is exacerbated by the limited understanding of its underlying causes and limitations in current therapeutic interventions, highlighting the need for sophisticated models of atherosclerosis. This review critically evaluates the computational and biological models of atherosclerosis, focusing on the study of hemodynamics in atherosclerotic coronary arteries. Computational models account for the geometrical complexities and hemodynamics of the blood vessels and stenoses, but they fail to capture the complex biological processes involved in atherosclerosis. Different in vitro and in vivo biological models can capture aspects of the biological complexity of healthy and stenosed vessels, but rarely mimic the human anatomy and physiological hemodynamics, and require significantly more time, cost, and resources. Therefore, emerging strategies are examined that integrate computational and biological models, and the potential of advances in imaging, biofabrication, and machine learning is explored in developing more effective models of atherosclerosis.
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Affiliation(s)
| | - Michael Bartolf-Kopp
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Kristina Andelovic
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Tomasz Jungst
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
- Department of Orthopedics, Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, 3584, Netherlands
| | - Nona Farbehi
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, 2052, Australia
- Tyree Institute of Health Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
- Garvan Weizmann Center for Cellular Genomics, Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
| | - Steven G Wise
- School of Medical Sciences, University of Sydney, Sydney, NSW, 2006, Australia
| | - Christopher Hayward
- St Vincent's Hospital, Sydney, Victor Chang Cardiac Research Institute, Sydney, 2010, Australia
| | - Michael Charles Stevens
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jelena Rnjak-Kovacina
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, 2052, Australia
- Tyree Institute of Health Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
- Australian Centre for NanoMedicine (ACN), University of New South Wales, Sydney, NSW, 2052, Australia
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Zhou HL, Jiang XZ, Ventikos Y. Role of blood flow in endothelial functionality: a review. Front Cell Dev Biol 2023; 11:1259280. [PMID: 37905167 PMCID: PMC10613523 DOI: 10.3389/fcell.2023.1259280] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 10/04/2023] [Indexed: 11/02/2023] Open
Abstract
Endothelial cells, located on the surface of blood vessel walls, are constantly stimulated by mechanical forces from the blood flow. The mechanical forces, i.e., fluid shear stress, induced by the blood flow play a pivotal role in controlling multiple physiological processes at the endothelium and in regulating various pathways that maintain homeostasis and vascular function. In this review, research looking at different blood fluid patterns and fluid shear stress in the circulation system is summarized, together with the interactions between the blood flow and the endothelial cells. This review also highlights the flow profile as a response to the configurational changes of the endothelial glycocalyx, which is less revisited in previous reviews. The role of endothelial glycocalyx in maintaining endothelium health and the strategies for the restoration of damaged endothelial glycocalyx are discussed from the perspective of the fluid shear stress. This review provides a new perspective regarding our understanding of the role that blood flow plays in regulating endothelial functionality.
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Affiliation(s)
- Hui Lin Zhou
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, China
| | - Xi Zhuo Jiang
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, China
| | - Yiannis Ventikos
- Department of Mechanical Engineering, Monash University, Melbourne, VIC, Australia
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Feaver RE, Bowers MS, Cole BK, Hoang S, Lawson MJ, Taylor J, LaMoreaux BD, Zhao L, Henke BR, Johns BA, Nyborg AC, Wamhoff BR, Figler RA. Human cardiovascular disease model predicts xanthine oxidase inhibitor cardiovascular risk. PLoS One 2023; 18:e0291330. [PMID: 37682977 PMCID: PMC10490929 DOI: 10.1371/journal.pone.0291330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/27/2023] [Indexed: 09/10/2023] Open
Abstract
Some health concerns are often not identified until late into clinical development of drugs, which can place participants and patients at significant risk. For example, the United States Food and Drug Administration (FDA) labeled the xanthine oxidase inhibitor febuxostat with a"boxed" warning regarding an increased risk of cardiovascular death, and this safety risk was only identified during Phase 3b clinical trials after its approval. Thus, better preclinical assessment of drug efficacy and safety are needed to accurately evaluate candidate drug risk earlier in discovery and development. This study explored whether an in vitro vascular model incorporating human vascular cells and hemodynamics could be used to differentiate the potential cardiovascular risk associated with molecules that have similar on-target mechanisms of action. We compared the transcriptomic responses induced by febuxostat and other xanthine oxidase inhibitors to a database of 111 different compounds profiled in the human vascular model. Of the 111 compounds in the database, 107 are clinical-stage and 33 are FDA-labelled for increased cardiovascular risk. Febuxostat induces pathway-level regulation that has high similarity to the set of drugs FDA-labelled for increased cardiovascular risk. These results were replicated with a febuxostat analog, but not another structurally distinct xanthine oxidase inhibitor that does not confer cardiovascular risk. Together, these data suggest that the FDA warning for febuxostat stems from the chemical structure of the medication itself, rather than the target, xanthine oxidase. Importantly, these data indicate that cardiovascular risk can be evaluated in this in vitro human vascular model, which may facilitate understanding the drug candidate safety profile earlier in discovery and development.
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Affiliation(s)
- Ryan E. Feaver
- HemoShear Therapeutics, Incorporated., Charlottesville, Virginia, United States of America
| | - M. Scott Bowers
- Horizon Therapeutics plc, Deerfield, Illinois, United States of America
| | - Banumathi K. Cole
- HemoShear Therapeutics, Incorporated., Charlottesville, Virginia, United States of America
| | - Steve Hoang
- HemoShear Therapeutics, Incorporated., Charlottesville, Virginia, United States of America
| | - Mark J. Lawson
- HemoShear Therapeutics, Incorporated., Charlottesville, Virginia, United States of America
| | - Justin Taylor
- HemoShear Therapeutics, Incorporated., Charlottesville, Virginia, United States of America
| | | | - Lin Zhao
- Horizon Therapeutics plc, Deerfield, Illinois, United States of America
| | - Brad R. Henke
- HemoShear Therapeutics, Incorporated., Charlottesville, Virginia, United States of America
| | - Brian A. Johns
- HemoShear Therapeutics, Incorporated., Charlottesville, Virginia, United States of America
| | - Andrew C. Nyborg
- Horizon Therapeutics plc, Deerfield, Illinois, United States of America
| | - Brian R. Wamhoff
- HemoShear Therapeutics, Incorporated., Charlottesville, Virginia, United States of America
| | - Robert A. Figler
- HemoShear Therapeutics, Incorporated., Charlottesville, Virginia, United States of America
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Liu H, Zhang J, Xue Z, Chang M, Feng X, Cai Y, Bai L, Wang W, Liu E, Zhao S, Wang R. Deficiency of protein inhibitor of activated STAT3 exacerbates atherosclerosis by modulating VSMC phenotypic switching. Atherosclerosis 2023; 380:117195. [PMID: 37586220 DOI: 10.1016/j.atherosclerosis.2023.117195] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 07/22/2023] [Accepted: 07/26/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND AND AIMS Phenotypic switching of vascular smooth muscle cells (VSMCs) plays an essential role in the development of atherosclerosis. Protein inhibitor of activated STAT (Pias) regulates VSMCs phenotype via acting as sumo E3 ligase to promote protein sumoylation. Our previous study indicated that Pias3 expression decreased in atherosclerotic lesions. Therefore, this study aimed to explore the role of Pias3 on VSMCs phenotype switching during atherosclerosis. METHODS ApoE-/- and ApoE-/-Pias3-/- double-deficient mice were fed with high-fat/high-cholesterol diet to induce atherosclerosis. Aorta tissues and primary VSMCs were collected to assess plaque formation and VSMCs phenotype. In vitro, Pias3 was overexpressed in A7r5, a VSMCs cell line, by transfection with Pias3 plasmid. Real-time quantitative PCR, immunoblotting, immunoprecipitation, were used to analyze the effect of Pias3 on VSMCs phenotypic switching. RESULTS Pias3 deficiency significantly exacerbated atherosclerotic plaque formation and promoted VSMCs phenotypic switching to a synthetic state within lesion. In vitro, overexpressing Pias3 in VSMCs increased the expression of contractile markers (myosin heavy chain 11, calponin 1), while it decreased the level of synthetic marker (vimentin). Additionally, Pias3 overexpression blocked PDGF-BB-induced VSMCs proliferation and migration. Immunoprecipitation and mass spectrometry results showed that Pias3 enhanced sumoylation and ubiquitination of vimentin, and shortened its half-life. Moreover, the ubiquitination level of vimentin was impaired by 2-D08, a sumoylation inhibitor. This suggests that Pias3 might accelerate the ubiquitination-degradation of vimentin by promoting its sumoylation. CONCLUSIONS These results indicate that Pias3 might ameliorate atherosclerosis progression by suppressing VSMCs phenotypic switching and reducing vimentin protein stability.
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Affiliation(s)
- Haole Liu
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Department of Laboratory Animal Science, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Jingyi Zhang
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Department of Laboratory Animal Science, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Ziyang Xue
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Department of Laboratory Animal Science, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Mingke Chang
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Department of Laboratory Animal Science, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Xinxin Feng
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Department of Laboratory Animal Science, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Yifan Cai
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Department of Laboratory Animal Science, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Liang Bai
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Laboratory Animal Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Weirong Wang
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Laboratory Animal Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Enqi Liu
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Laboratory Animal Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Sihai Zhao
- Laboratory Animal Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
| | - Rong Wang
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China; Department of Laboratory Animal Science, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
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Effects of shear stress on vascular endothelial functions in atherosclerosis and potential therapeutic approaches. Biomed Pharmacother 2023; 158:114198. [PMID: 36916427 DOI: 10.1016/j.biopha.2022.114198] [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: 10/14/2022] [Revised: 12/09/2022] [Accepted: 12/29/2022] [Indexed: 01/07/2023] Open
Abstract
Different blood flow patterns in the arteries can alter the adaptive phenotype of vascular endothelial cells (ECs), thereby affecting the functions of ECs and are directly associated with the occurrence of lesions in the early stages of atherosclerosis (AS). Atherosclerotic plaques are commonly found at curved or bifurcated arteries, where the blood flow pattern is dominated by oscillating shear stress (OSS). OSS can induce ECs to transform into pro-inflammatory phenotypes, increase cellular inflammation, oxidative stress response, mitochondrial dysfunction, metabolic abnormalities and endothelial permeability, thereby promoting the progression of AS. On the other hand, the straight artery has a stable laminar shear stress (LSS), which promotes the transformation of ECs into an anti-inflammatory phenotype, improves endothelial cell function, thereby inhibits atherosclerotic progression. ECs have the ability to actively sense, integrate, and convert mechanical stimuli by shear stress into biochemical signals that further induces intracellular changes (such as the opening and closing of ion channels, activation and transcription of signaling pathways). Here we not only outline the relationship between functions of vascular ECs and different forms of fluid shear stress in AS, but also aim to provide new solutions for potential atherosclerotic therapies targeting intracellular mechanical transductions.
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Liu M, Samant S, Vasa CH, Pedrigi RM, Oguz UM, Ryu S, Wei T, Anderson DR, Agrawal DK, Chatzizisis YS. Co-culture models of endothelial cells, macrophages, and vascular smooth muscle cells for the study of the natural history of atherosclerosis. PLoS One 2023; 18:e0280385. [PMID: 36662769 PMCID: PMC9858056 DOI: 10.1371/journal.pone.0280385] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 12/28/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND This work aims to present a fast, affordable, and reproducible three-cell co-culture system that could represent the different cellular mechanisms of atherosclerosis, extending from atherogenesis to pathological intimal thickening. METHODS AND RESULTS We built four culture models: (i) Culture model #1 (representing normal arterial intima), where human coronary artery endothelial cells were added on top of Matrigel-coated collagen type I matrix, (ii) Culture model #2 (representing atherogenesis), which demonstrated the subendothelial accumulation and oxidative modification of low-density lipoproteins (LDL), (iii) Culture model #3 (representing intimal xanthomas), which demonstrated the monocyte adhesion to the endothelial cell monolayer, transmigration into the subendothelial space, and transformation to lipid-laden macrophages, (iv) Culture model #4 (representing pathological intimal thickening), which incorporated multiple layers of human coronary artery smooth muscle cells within the matrix. Coupling this model with different shear stress conditions revealed the effect of low shear stress on the oxidative modification of LDL and the upregulation of pro-inflammatory molecules and matrix-degrading enzymes. Using electron microscopy, immunofluorescence confocal microscopy, protein and mRNA quantification assays, we showed that the behaviors exhibited by the endothelial cells, macrophages and vascular smooth muscle cells in these models were very similar to those exhibited by these cell types in nascent and intermediate atherosclerotic plaques in humans. The preparation time of the cultures was 24 hours. CONCLUSION We present three-cell co-culture models of human atherosclerosis. These models have the potential to allow cost- and time-effective investigations of the mechanobiology of atherosclerosis and new anti-atherosclerotic drug therapies.
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Affiliation(s)
- Martin Liu
- Division of Cardiovascular Medicine, Miller School of Medicine, University of Miami, Miami, Florida, United States of America
| | - Saurabhi Samant
- Cardiovascular Division, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Charu Hasini Vasa
- Division of Cardiovascular Medicine, Miller School of Medicine, University of Miami, Miami, Florida, United States of America
- Cardiovascular Division, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Ryan M. Pedrigi
- Department of Biological System Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Usama M. Oguz
- Division of Cardiovascular Medicine, Miller School of Medicine, University of Miami, Miami, Florida, United States of America
- Cardiovascular Division, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Sangjin Ryu
- Department of Mechanical and Materials Engineering, College of Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Timothy Wei
- Department of Mechanical and Materials Engineering, College of Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Daniel R. Anderson
- Cardiovascular Division, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Devendra K. Agrawal
- Department of Translational Research, Western University of Health Science, Pomona, California, United States of America
| | - Yiannis S. Chatzizisis
- Division of Cardiovascular Medicine, Miller School of Medicine, University of Miami, Miami, Florida, United States of America
- Cardiovascular Division, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
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Ma X, Liao X, Liu J, Wang Y, Wang X, Chen Y, Yin X, Pan Q. Circulating endothelial microvesicles and their carried miR-125a-5p: potential biomarkers for ischaemic stroke. Stroke Vasc Neurol 2022; 8:89-102. [PMID: 36109098 PMCID: PMC10176997 DOI: 10.1136/svn-2021-001476] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 09/02/2022] [Indexed: 11/04/2022] Open
Abstract
BackgroundEndothelial microvesicles (EMVs) are closely associated with the status of endothelial cells (ECs). Our earlier study has shown that EMVs could exert protective roles in ECs by transferring their carried miR-125a-5p. However, whether circulating EMVs and their carried miR-125a-5p can be used as biomarkers in ischaemic stroke (IS) are remain unknown.MethodsWe recruited 72 subjects with IS, 60 subjects with high stroke risk and 56 age-matched controls. The circulating EMVs and their carried miR-125a-5p (EMV-miR-125a-5p) levels were detected. We used microRNA (miR) array to study expression changes of miRs in plasma EMVs samples of three IS patients and three matched healthy controls. Transient middle cerebral artery occlusion (tMCAO) was used to establish IS mouse model.ResultsEMVs level was obviously elevated in IS patients, with the highest level in acute stage, and was positively related to carotid plaque, carotid intima–media thickness (IMT), National Institutes of Health Stroke Scale (NIHSS), infarct volume. On the contrary, we observed that EMV-miR-125a-5p level was obviously reduced in IS, with the lowest level in acute stage, and was negatively correlated with carotid plaque, IMT, NIHSS scores, infarct volume. EMVs and EMV-miR-125a-5p levels were closely related with large artery atherosclerosis subgroup. Importantly, EMVs and EMV-miR-125a-5p levels could serve as independent risk factors, and receiver operating characteristic curve achieved an area under curve (AUC) of 0.720 and 0.832 for IS, respectively, and elevated to 0.881 after their combination. In IS mouse model, control EMVs or n-EMVs administration could decrease the infarct volume and neurological deficit score, while increase the cerebral blood flow of IS mice compared with vehicle group, while IS EMVs or oxygen and glucose deprivation (OGD)-EMVs administration aggravated the tMCAO induced ischaemic injury. In addition, we observed that OGD EMVmiR-125a-5p could partially ameliorate the OGD EMVs induced brain injury after IS.ConclusionsThese findings demonstrate that circulating EMVs and EMV-miR-125a-5p are closely related with the occurrence, progress, subtypes and severity of IS, and they can serve as innovative biomarkers and therapeutic targets for IS, especially when they are combined.
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Affiliation(s)
- Xiaotang Ma
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xiaorong Liao
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Jiehong Liu
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yan Wang
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xiang Wang
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yanfang Chen
- Pharmacology and Toxicology, Wright State University Boonshoft School of Medicine, Dayton, Ohio, USA
| | - Xiaojian Yin
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Qunwen Pan
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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A Review of Functional Analysis of Endothelial Cells in Flow Chambers. J Funct Biomater 2022; 13:jfb13030092. [PMID: 35893460 PMCID: PMC9326639 DOI: 10.3390/jfb13030092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/20/2022] [Accepted: 06/28/2022] [Indexed: 12/10/2022] Open
Abstract
The vascular endothelial cells constitute the innermost layer. The cells are exposed to mechanical stress by the flow, causing them to express their functions. To elucidate the functions, methods involving seeding endothelial cells as a layer in a chamber were studied. The chambers are known as parallel plate, T-chamber, step, cone plate, and stretch. The stimulated functions or signals from endothelial cells by flows are extensively connected to other outer layers of arteries or organs. The coculture layer was developed in a chamber to investigate the interaction between smooth muscle cells in the middle layer of the blood vessel wall in vascular physiology and pathology. Additionally, the microfabrication technology used to create a chamber for a microfluidic device involves both mechanical and chemical stimulation of cells to show their dynamics in in vivo microenvironments. The purpose of this study is to summarize the blood flow (flow inducing) for the functions connecting to endothelial cells and blood vessels, and to find directions for future chamber and device developments for further understanding and application of vascular functions. The relationship between chamber design flow, cell layers, and microfluidics was studied.
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11
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Li B, Zhang T, Liu M, Cui Z, Zhang Y, Liu M, Liu Y, Sun Y, Li M, Tian Y, Yang Y, Jiang H, Liang D. RNA N6-methyladenosine modulates endothelial atherogenic responses to disturbed flow in mice. eLife 2022; 11:e69906. [PMID: 35001873 PMCID: PMC8794471 DOI: 10.7554/elife.69906] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 01/07/2022] [Indexed: 12/26/2022] Open
Abstract
Atherosclerosis preferentially occurs in atheroprone vasculature where human umbilical vein endothelial cells are exposed to disturbed flow. Disturbed flow is associated with vascular inflammation and focal distribution. Recent studies have revealed the involvement of epigenetic regulation in atherosclerosis progression. N6-methyladenosine (m6A) is the most prevalent internal modification of eukaryotic mRNA, but its function in endothelial atherogenic progression remains unclear. Here, we show that m6A mediates the epidermal growth factor receptor (EGFR) signaling pathway during EC activation to regulate the atherosclerotic process. Oscillatory stress (OS) reduced the expression of methyltransferase like 3 (METTL3), the primary m6A methyltransferase. Through m6A sequencing and functional studies, we determined that m6A mediates the mRNA decay of the vascular pathophysiology gene EGFR which leads to EC dysfunction. m6A modification of the EGFR 3' untranslated regions (3'UTR) accelerated its mRNA degradation. Double mutation of the EGFR 3'UTR abolished METTL3-induced luciferase activity. Adenovirus-mediated METTL3 overexpression significantly reduced EGFR activation and endothelial dysfunction in the presence of OS. Furthermore, thrombospondin-1 (TSP-1), an EGFR ligand, was specifically expressed in atheroprone regions without being affected by METTL3. Inhibition of the TSP-1/EGFR axis by using shRNA and AG1478 significantly ameliorated atherogenesis. Overall, our study revealed that METTL3 alleviates endothelial atherogenic progression through m6A-dependent stabilization of EGFR mRNA, highlighting the important role of RNA transcriptomics in atherosclerosis regulation.
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Affiliation(s)
- Bochuan Li
- Tianjin Key Laboratory of Metabolic Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Collaborative Innovation Center of Tianjin for Medical Epigenetics and Department of Physiology and Pathophysiology, Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin Medical UniversityTianjinChina
| | - Ting Zhang
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of SciencesBeijingChina
- China National Center for BioinformationBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Mengxia Liu
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of SciencesBeijingChina
- China National Center for BioinformationBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Zhen Cui
- Tianjin Key Laboratory of Metabolic Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Collaborative Innovation Center of Tianjin for Medical Epigenetics and Department of Physiology and Pathophysiology, Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin Medical UniversityTianjinChina
| | - Yanhong Zhang
- Tianjin Key Laboratory of Metabolic Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Collaborative Innovation Center of Tianjin for Medical Epigenetics and Department of Physiology and Pathophysiology, Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin Medical UniversityTianjinChina
| | - Mingming Liu
- Tianjin Key Laboratory of Metabolic Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Collaborative Innovation Center of Tianjin for Medical Epigenetics and Department of Physiology and Pathophysiology, Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin Medical UniversityTianjinChina
| | - Yanan Liu
- Tianjin Key Laboratory of Metabolic Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Collaborative Innovation Center of Tianjin for Medical Epigenetics and Department of Physiology and Pathophysiology, Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin Medical UniversityTianjinChina
| | - Yongqiao Sun
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of SciencesBeijingChina
- China National Center for BioinformationBeijingChina
| | - Mengqi Li
- Tianjin Key Laboratory of Metabolic Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Collaborative Innovation Center of Tianjin for Medical Epigenetics and Department of Physiology and Pathophysiology, Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin Medical UniversityTianjinChina
| | - Yikui Tian
- Tianjin Key Laboratory of Metabolic Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Collaborative Innovation Center of Tianjin for Medical Epigenetics and Department of Physiology and Pathophysiology, Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin Medical UniversityTianjinChina
| | - Ying Yang
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of SciencesBeijingChina
- China National Center for BioinformationBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Hongfeng Jiang
- Key Laboratory of Remodeling-Related Cardiovascular Diseases (Ministry of Education), Beijing Collaborative Innovation Center for Cardiovascular Disorders, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical UniversityBeijingChina
| | - Degang Liang
- Tianjin Key Laboratory of Metabolic Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Collaborative Innovation Center of Tianjin for Medical Epigenetics and Department of Physiology and Pathophysiology, Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin Medical UniversityTianjinChina
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12
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Giebe S, Hofmann A, Brux M, Lowe F, Breheny D, Morawietz H, Brunssen C. Comparative study of the effects of cigarette smoke versus next generation tobacco and nicotine product extracts on endothelial function. Redox Biol 2021; 47:102150. [PMID: 34601427 PMCID: PMC8531844 DOI: 10.1016/j.redox.2021.102150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 11/29/2022] Open
Abstract
Tobacco smoking and hemodynamic forces are key stimuli for the development of endothelial dysfunction. As an alternative to smoking, next generation tobacco and nicotine products (NGP) are now widely used. However, little is known about their potential pro-inflammatory and atherogenic effects on the endothelium. In this study, we analyzed key parameters of endothelial function after exposure to aqueous smoke extracts (AqE) of a heated tobacco product (HTP), an electronic cigarette (e-cig), a conventional cigarette (3R4F) and pure nicotine. All experiments were performed under atheroprotective high laminar or atherogenic low flow with primary human endothelial cells. Treatment with 3R4F, but not alternative smoking products, reduced endothelial cell viability and wound healing capability via the PI3K/AKT/eNOS(NOS3) pathway. Laminar flow delayed detrimental effects on cell viability by 3R4F treatment. 3R4F stimulation led to activation of NRF2 antioxidant defense system at nicotine concentrations ≥0.56 μg/ml and increased expression of its target genes HMOX1 and NQO1. Treatment with HTP revealed an induction of HMOX1 and NQO1 at dosages with ≥1.68 μg/ml nicotine, whereas e-cig and nicotine exposure had no impact. Analyses of pro-inflammatory genes revealed an increased ICAM1 expression under 3R4F treatment. 3R4F reduced VCAM1 expression in a dose-dependent manner; HTP treatment had similar but milder effects; e-cig and nicotine treatment had no impact. SELE expression was induced by 3R4F under static conditions. High laminar flow prevented this upregulation. Stimulation with laminar flow led to downregulation of CCL2 (MCP-1). From this downregulated level, only 3R4F increased CCL2 expression at higher concentrations. Finally, under static conditions, all components increased adhesion of monocytes to endothelial cells. Interestingly, only stimulation with 3R4F revealed increased monocyte adhesion under atherosclerosis-prone low flow. In conclusion, all product categories activated anti-oxidative or pro-inflammatory patterns. NGP responses were typically lower than in 3R4F exposed cells. Also, 3R4F stimulation led to an impaired endothelial wound healing and induced a pro-inflammatory phenotype compared to NGP treatment.
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Affiliation(s)
- Sindy Giebe
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Anja Hofmann
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Melanie Brux
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Frazer Lowe
- Group Research & Development, British American Tobacco, Southampton, United Kingdom
| | - Damien Breheny
- Group Research & Development, British American Tobacco, Southampton, United Kingdom
| | - Henning Morawietz
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Coy Brunssen
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany.
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13
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Cellular Crosstalk between Endothelial and Smooth Muscle Cells in Vascular Wall Remodeling. Int J Mol Sci 2021; 22:ijms22147284. [PMID: 34298897 PMCID: PMC8306829 DOI: 10.3390/ijms22147284] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/25/2021] [Accepted: 07/01/2021] [Indexed: 12/24/2022] Open
Abstract
Pathological vascular wall remodeling refers to the structural and functional changes of the vessel wall that occur in response to injury that eventually leads to cardiovascular disease (CVD). Vessel wall are composed of two major primary cells types, endothelial cells (EC) and vascular smooth muscle cells (VSMCs). The physiological communications between these two cell types (EC–VSMCs) are crucial in the development of the vasculature and in the homeostasis of mature vessels. Moreover, aberrant EC–VSMCs communication has been associated to the promotor of various disease states including vascular wall remodeling. Paracrine regulations by bioactive molecules, communication via direct contact (junctions) or information transfer via extracellular vesicles or extracellular matrix are main crosstalk mechanisms. Identification of the nature of this EC–VSMCs crosstalk may offer strategies to develop new insights for prevention and treatment of disease that curse with vascular remodeling. Here, we will review the molecular mechanisms underlying the interplay between EC and VSMCs. Additionally, we highlight the potential applicable methodologies of the co-culture systems to identify cellular and molecular mechanisms involved in pathological vascular wall remodeling, opening questions about the future research directions.
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14
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Lee JH, Chen Z, He S, Zhou JK, Tsai A, Truskey GA, Leong KW. Emulating Early Atherosclerosis in a Vascular Microphysiological System Using Branched Tissue-Engineered Blood Vessels. Adv Biol (Weinh) 2021; 5:e2000428. [PMID: 33852179 PMCID: PMC9951769 DOI: 10.1002/adbi.202000428] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/26/2021] [Indexed: 02/04/2023]
Abstract
Atherosclerosis begins with the accumulation of cholesterol-carrying lipoproteins on blood vessel walls and progresses to endothelial cell dysfunction, monocyte adhesion, and foam cell formation. Endothelialized tissue-engineered blood vessels (TEBVs) have previously been fabricated to recapitulate artery functionalities, including vasoconstriction, vasodilation, and endothelium activation. Here, the initiation of atherosclerosis is emulated by designing branched TEBVs (brTEBVs) of various geometries treated with enzyme-modified low-density-lipoprotein (eLDL) and TNF-α to induce endothelial cell dysfunction and adhesion of perfused human monocytes. Locations of monocyte adhesion under pulsatile flow are identified, and the hemodynamics in the brTEBVs are characterized using particle image velocimetry (PIV) and computational fluid dynamics (CFD). Monocyte adhesion is greater at the side outlets than at the main outlets or inlets, and is greatest at larger side outlet branching angles (60° or 80° vs 45°). In PIV experiments, the branched side outlets are identified as atherosclerosis-prone areas where fluorescent particles show a transient swirling motion following flow pulses; in CFD simulations, side outlets with larger branching angles show higher vorticity magnitude and greater flow disturbance than other areas. These results suggest that the branched TEBVs with eLDL/TNF-α treatment provide a physiologically relevant model of early atherosclerosis for preclinical studies.
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Affiliation(s)
- Jounghyun H. Lee
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Zaozao Chen
- School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Siyu He
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Joyce K. Zhou
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Alexander Tsai
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - George A. Truskey
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - Kam W. Leong
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
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15
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Li W, Li P, Li N, Du Y, Lü S, Elad D, Long M. Matrix stiffness and shear stresses modulate hepatocyte functions in a fibrotic liver sinusoidal model. Am J Physiol Gastrointest Liver Physiol 2021; 320:G272-G282. [PMID: 33296275 PMCID: PMC8609567 DOI: 10.1152/ajpgi.00379.2019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Extracellular matrix (ECM) rigidity has important effects on cell behaviors and increases sharply in liver fibrosis and cirrhosis. Hepatic blood flow is essential in maintaining hepatocytes' (HCs) functions. However, it is still unclear how matrix stiffness and shear stresses orchestrate HC phenotype in concert. A fibrotic three-dimensional (3-D) liver sinusoidal model is constructed using a porous membrane sandwiched between two polydimethylsiloxane (PDMS) layers with respective flow channels. The HCs are cultured in collagen gels of various stiffnesses in the lower channel, whereas the upper channel is pre-seeded with liver sinusoidal endothelial cells (LSECs) and accessible to shear flow. The results reveal that HCs cultured within stiffer matrices exhibit reduced albumin production and cytochrome P450 (CYP450) reductase expression. Low shear stresses enhance synthetic and metabolic functions of HC, whereas high shear stresses lead to the loss of HC phenotype. Furthermore, both mechanical factors regulate HC functions by complementing each other. These observations are likely attributed to mechanically induced mass transport or key signaling molecule of hepatocyte nuclear factor 4α (HNF4α). The present study results provide an insight into understanding the mechanisms of HC dysfunction in liver fibrosis and cirrhosis, especially from the viewpoint of matrix stiffness and blood flow.NEW & NOTEWORTHY A fibrotic three-dimensional (3-D) liver sinusoidal model was constructed to mimic different stages of liver fibrosis in vivo and to explore the cooperative effects of matrix stiffness and shear stresses on hepatocyte (HC) functions. Mechanically induced alterations of mass transport mainly contributed to HC functions via typical mechanosensitive signaling.
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Affiliation(s)
- Wang Li
- 1Center for Biomechanics and Bioengineering, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,2Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,3Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,4School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Peiwen Li
- 1Center for Biomechanics and Bioengineering, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,2Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,3Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,4School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Ning Li
- 1Center for Biomechanics and Bioengineering, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,2Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,3Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,4School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Yu Du
- 1Center for Biomechanics and Bioengineering, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,2Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,3Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,4School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Shouqin Lü
- 1Center for Biomechanics and Bioengineering, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,2Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,3Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,4School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - David Elad
- 5Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel
| | - Mian Long
- 1Center for Biomechanics and Bioengineering, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,2Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,3Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences, Beijing, People’s Republic of China,4School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, People’s Republic of China
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16
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Davaapil H, Shetty DK, Sinha S. Aortic "Disease-in-a-Dish": Mechanistic Insights and Drug Development Using iPSC-Based Disease Modeling. Front Cell Dev Biol 2020; 8:550504. [PMID: 33195187 PMCID: PMC7655792 DOI: 10.3389/fcell.2020.550504] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 10/08/2020] [Indexed: 12/24/2022] Open
Abstract
Thoracic aortic diseases, whether sporadic or due to a genetic disorder such as Marfan syndrome, lack effective medical therapies, with limited translation of treatments that are highly successful in mouse models into the clinic. Patient-derived induced pluripotent stem cells (iPSCs) offer the opportunity to establish new human models of aortic diseases. Here we review the power and potential of these systems to identify cellular and molecular mechanisms underlying disease and discuss recent advances, such as gene editing, and smooth muscle cell embryonic lineage. In particular, we discuss the practical aspects of vascular smooth muscle cell derivation and characterization, and provide our personal insights into the challenges and limitations of this approach. Future applications, such as genotype-phenotype association, drug screening, and precision medicine are discussed. We propose that iPSC-derived aortic disease models could guide future clinical trials via “clinical-trials-in-a-dish”, thus paving the way for new and improved therapies for patients.
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Affiliation(s)
- Hongorzul Davaapil
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, United Kingdom
| | - Deeti K Shetty
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, United Kingdom
| | - Sanjay Sinha
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, United Kingdom
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17
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Peng M, Wang L, Xia Y, Tao L, Liu Y, Huang F, Li S, Gong X, Liu X, Xu G. High Dietary Inflammatory Index Is Associated With Increased Plaque Vulnerability of Carotid in Patients With Ischemic Stroke. Stroke 2020; 51:2983-2989. [PMID: 32921261 DOI: 10.1161/strokeaha.120.029035] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND AND PURPOSE Long-term dietary patterns can influence the intensity of systemic inflammation and, therefore, the development of atherosclerosis. This study aimed to evaluate the association between dietary inflammatory index (DII) and vulnerability characteristics of carotid atherosclerotic plaques in patients with ischemic stroke. METHODS Patients with ischemic stroke within 7 days of onset were enrolled. DII was calculated from 32 food components with the help of a food frequency questionnaire. Vulnerable plaque was defined as presence of artery positive remodeling (remodeling index >1.1) and low CT attenuation plaques (<35 HU) on carotid arteries by computed tomography angiography. RESULTS Of the 398 enrolled patients, 144 (36.2%) were detected with vulnerable plaque. Their DII ranged from -4.58 to 4.18. Patients with vulnerable plaques consumed less nutrients with anti-inflammatory properties, less fruits and vegetables (85.6±64.3 versus 94.6±74.4 g/d, P=0.027), and less nuts (5.66±7.14 versus 8.84±15.9 g/d, P=0.024) than patients without vulnerable plaques. Patients with vulnerable plaque had higher DII than patients without vulnerable plaque (-0.26±1.54 versus -0.64±1.53, P=0.018). Logistic regression analysis revealed that DII was associated with vulnerable plaques after adjusted for major confounding factors (odds ratio=1.307; 95% CI, 1.113-1.533). CONCLUSIONS DII is associated with the vulnerability of carotid plaques in patients with ischemic stroke. Considering a possible causal relationship, the mechanisms underlying the association between diet and atherosclerosis warrant further study.
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Affiliation(s)
- Min Peng
- Department of Neurology (M.P., X.L., G.X.), Jinling Hospital, Medical School of Nanjing University, Jiangsu, China
| | - Ling Wang
- Department of Neurology, The Fourth Affiliated Hospital of Anhui Medical University, China (L.W)
| | - Yaqian Xia
- Department of Neurology, Jinling Hospital, Jinling Clinical College of Nanjing Medical University, Jiangsu, China (Y.X., Y.L., X.L., G.X.)
| | - Lei Tao
- Department of Medical Imaging (L.T.), Jinling Hospital, Medical School of Nanjing University, Jiangsu, China
| | - Yujing Liu
- Department of Neurology, Jinling Hospital, Jinling Clinical College of Nanjing Medical University, Jiangsu, China (Y.X., Y.L., X.L., G.X.)
| | - Feihong Huang
- Department of Neurology, Jinling Hospital, Southern Medical University, Jiangsu, China (F.H., X.G., X.L., G.X.)
| | - Shun Li
- Department of Cerebrovascular Disease Treatment Center, Nanjing Brain Hospital Affiliated to Nanjing Medical University, Jiangsu, China (S.L.)
| | - Xiuqun Gong
- Department of Neurology, Jinling Hospital, Southern Medical University, Jiangsu, China (F.H., X.G., X.L., G.X.).,Department of Neurology, The First Affiliated Hospital of Anhui University of Science and Technology, The First People's Hospital of Huainan, Huainan, China (X.G.)
| | - Xinfeng Liu
- Department of Neurology (M.P., X.L., G.X.), Jinling Hospital, Medical School of Nanjing University, Jiangsu, China.,Department of Neurology, Jinling Hospital, Jinling Clinical College of Nanjing Medical University, Jiangsu, China (Y.X., Y.L., X.L., G.X.).,Department of Neurology, Jinling Hospital, Southern Medical University, Jiangsu, China (F.H., X.G., X.L., G.X.)
| | - Gelin Xu
- Department of Neurology (M.P., X.L., G.X.), Jinling Hospital, Medical School of Nanjing University, Jiangsu, China.,Department of Neurology, Jinling Hospital, Jinling Clinical College of Nanjing Medical University, Jiangsu, China (Y.X., Y.L., X.L., G.X.).,Department of Neurology, Jinling Hospital, Southern Medical University, Jiangsu, China (F.H., X.G., X.L., G.X.)
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18
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Liu L, Fan L, Chan M, Kraakman MJ, Yang J, Fan Y, Aaron N, Wan Q, Carrillo-Sepulveda MA, Tall AR, Tabas I, Accili D, Qiang L. PPARγ Deacetylation Confers the Antiatherogenic Effect and Improves Endothelial Function in Diabetes Treatment. Diabetes 2020; 69:1793-1803. [PMID: 32409492 PMCID: PMC7372079 DOI: 10.2337/db20-0217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/11/2020] [Indexed: 12/18/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death in patients with diabetes, and tight glycemic control fails to reduce the risk of developing CVD. Thiazolidinediones (TZDs), a class of peroxisome proliferator-activated receptor γ (PPARγ) agonists, are potent insulin sensitizers with antiatherogenic properties, but their clinical use is limited by side effects. PPARγ deacetylation on two lysine residues (K268 and K293) induces brown remodeling of white adipose tissue and uncouples the adverse effects of TZDs from insulin sensitization. Here we show that PPARγ deacetylation confers antiatherogenic properties and retains the insulin-sensitizing effects of TZD while circumventing its detriments. We generated mice homozygous with mice with deacetylation-mimetic PPARγ mutations K268R/K293R (2KR) on an LDL-receptor knockout (Ldlr -/- ) background. 2KR:Ldlr -/- mice showed smaller atherosclerotic lesion areas than Ldlr -/- mice, particularly in aortic arches. With rosiglitazone treatment, 2KR:Ldlr -/- mice demonstrated a residual antiatherogenic response and substantial protection against bone loss and fluid retention. The antiatherosclerotic effect of 2KR was attributed to the protection of endothelium, indicated by improved endothelium-dependent vasorelaxation and repressed expression of proatherogenic factors including inducible nitric oxide synthase, interleukin-6, and NADPH oxidase 2. Therefore, manipulating PPARγ acetylation is a promising therapeutic strategy to control risk of CVD in diabetes treatment.
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Affiliation(s)
- Longhua Liu
- Naomi Berrie Diabetes Center, Columbia University, New York, NY
- Department of Pathology and Cell Biology, Columbia University, New York, NY
| | - Lihong Fan
- Naomi Berrie Diabetes Center, Columbia University, New York, NY
- Department of Pathology and Cell Biology, Columbia University, New York, NY
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an, Shanxi, China
| | - Michelle Chan
- Department of Biological Sciences, Columbia University, New York, NY
| | - Michael J Kraakman
- Naomi Berrie Diabetes Center, Columbia University, New York, NY
- Department of Medicine, Columbia University, New York, NY
| | - Jing Yang
- Naomi Berrie Diabetes Center, Columbia University, New York, NY
- Department of Pathology and Cell Biology, Columbia University, New York, NY
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an, Shanxi, China
| | - Yong Fan
- Naomi Berrie Diabetes Center, Columbia University, New York, NY
- Department of Pathology and Cell Biology, Columbia University, New York, NY
| | - Nicole Aaron
- Naomi Berrie Diabetes Center, Columbia University, New York, NY
- Department of Pharmacology, Columbia University, New York, NY
| | - Qianfen Wan
- Naomi Berrie Diabetes Center, Columbia University, New York, NY
- Department of Pathology and Cell Biology, Columbia University, New York, NY
| | | | - Alan R Tall
- Department of Medicine, Columbia University, New York, NY
| | - Ira Tabas
- Department of Medicine, Columbia University, New York, NY
| | - Domenico Accili
- Naomi Berrie Diabetes Center, Columbia University, New York, NY
- Department of Medicine, Columbia University, New York, NY
| | - Li Qiang
- Naomi Berrie Diabetes Center, Columbia University, New York, NY
- Department of Pathology and Cell Biology, Columbia University, New York, NY
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19
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Hong JK, Gao L, Singh J, Goh T, Ruhoff AM, Neto C, Waterhouse A. Evaluating medical device and material thrombosis under flow: current and emerging technologies. Biomater Sci 2020; 8:5824-5845. [DOI: 10.1039/d0bm01284j] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review highlights the importance of flow in medical device thrombosis and explores current and emerging technologies to evaluate dynamic biomaterial Thrombosis in vitro.
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Affiliation(s)
- Jun Ki Hong
- School of Chemistry
- The University of Sydney
- Australia
- School of Medical Sciences
- Faculty of Medicine and Health
| | - Lingzi Gao
- Heart Research Institute
- Newtown
- Australia
- The University of Sydney Nano Institute
- The University of Sydney
| | - Jasneil Singh
- Heart Research Institute
- Newtown
- Australia
- The Charles Perkins Centre
- The University of Sydney
| | - Tiffany Goh
- Heart Research Institute
- Newtown
- Australia
- The Charles Perkins Centre
- The University of Sydney
| | - Alexander M. Ruhoff
- Heart Research Institute
- Newtown
- Australia
- The Charles Perkins Centre
- The University of Sydney
| | - Chiara Neto
- School of Chemistry
- The University of Sydney
- Australia
- The University of Sydney Nano Institute
- The University of Sydney
| | - Anna Waterhouse
- School of Medical Sciences
- Faculty of Medicine and Health
- The University of Sydney
- Australia
- Heart Research Institute
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20
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Tabaei S, Tabaee SS. DNA methylation abnormalities in atherosclerosis. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:2031-2041. [DOI: 10.1080/21691401.2019.1617724] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Samira Tabaei
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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21
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Noonan J, Grassia G, MacRitchie N, Garside P, Guzik TJ, Bradshaw AC, Maffia P. A Novel Triple-Cell Two-Dimensional Model to Study Immune-Vascular Interplay in Atherosclerosis. Front Immunol 2019; 10:849. [PMID: 31068936 PMCID: PMC6491724 DOI: 10.3389/fimmu.2019.00849] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 04/01/2019] [Indexed: 12/31/2022] Open
Abstract
Atherosclerosis is a complex inflammatory pathology underpinning cardiovascular diseases (CVD), which are the leading cause of death worldwide. The interplay between vascular stromal cells and immune cells is fundamental to the progression and outcome of atherosclerotic disease, however, the majority of in vitro studies do not consider the implications of these interactions and predominantly use mono-culture approaches. Here we present a simple and robust methodology involving the co-culture of vascular endothelial (ECs) and smooth muscle cells (SMCs) alongside an inflammatory compartment, in our study containing THP-1 macrophages, for studying these complex interactions. Using this approach, we demonstrate that the interaction between vascular stromal and immune cells produces unique cellular phenotypes and soluble mediator profiles not observed in double-cell 2D cultures. Our results highlight the importance of cellular communication and support the growing idea that in vitro research must evolve from mono-culture systems to provide data more representative of the multi-cellular environment found in vivo. The methodology presented, in comparison with established approaches, has the advantage of being technically simple whilst enabling the isolation of pure populations of ECs, SMCs and immune cells directly from the co-culture without cell sorting. The approach described within would be applicable to those studying mechanisms of vascular inflammation, particularly in relation to understanding the impact cellular interaction has on the cumulative immune-vascular response to atherogenic or inflammatory stimuli.
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Affiliation(s)
- Jonathan Noonan
- Centre for Immunobiology, College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Gianluca Grassia
- Centre for Immunobiology, College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Neil MacRitchie
- Centre for Immunobiology, College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Paul Garside
- Centre for Immunobiology, College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Tomasz J Guzik
- College of Medical, Veterinary and Life Sciences, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom.,Department of Internal and Agricultural Medicine, Jagiellonian University College of Medicine, Kraków, Poland
| | - Angela C Bradshaw
- College of Medical, Veterinary and Life Sciences, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Pasquale Maffia
- Centre for Immunobiology, College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.,College of Medical, Veterinary and Life Sciences, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom.,Department of Pharmacy, University of Naples Federico II, Naples, Italy
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22
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Gioeli D, Snow CJ, Simmers MB, Hoang SA, Figler RA, Allende JA, Roller DG, Parsons JT, Wulfkuhle JD, Petricoin EF, Bauer TW, Wamhoff BR. Development of a multicellular pancreatic tumor microenvironment system using patient-derived tumor cells. LAB ON A CHIP 2019; 19:1193-1204. [PMID: 30839006 PMCID: PMC7486791 DOI: 10.1039/c8lc00755a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The development of drugs to treat cancer is hampered by the inefficiency of translating pre-clinical in vitro monoculture and mouse studies into clinical benefit. There is a critical need to improve the accuracy of evaluating pre-clinical drug efficacy through the development of more physiologically relevant models. In this study, a human triculture 3D in vitro tumor microenvironment system (TMES) was engineered to accurately mimic the tumor microenvironment. The TMES recapitulates tumor hemodynamics and biological transport with co-cultured human microvascular endothelial cells, pancreatic ductal adenocarcinoma, and pancreatic stellate cells. We demonstrate that significant tumor cell transcriptomic changes occur in the TMES that correlate with the in vivo xenograft and patient transcriptome. Treatment with therapeutically relevant doses of chemotherapeutics yields responses paralleling the patients' clinical responses. Thus, this model provides a unique platform to rigorously evaluate novel therapies and is amenable to using patient tumor material directly, with applicability for patient avatars.
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Affiliation(s)
- Daniel Gioeli
- Departments of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia
- Cancer Center Member, University of Virginia, Charlottesville, Virginia
- HemoShear Therapeutics, Charlottesville, Virginia
| | | | | | | | | | - J. Ashe Allende
- Departments of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - Devin G. Roller
- Departments of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - J. Thomas Parsons
- Departments of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia
- Cancer Center Member, University of Virginia, Charlottesville, Virginia
| | - Julia D. Wulfkuhle
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, Virginia
| | - Emanuel F. Petricoin
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, Virginia
| | - Todd W. Bauer
- Department of Surgery, University of Virginia, Charlottesville, Virginia
- Cancer Center Member, University of Virginia, Charlottesville, Virginia
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23
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Massé DD, Shar JA, Brown KN, Keswani SG, Grande-Allen KJ, Sucosky P. Discrete Subaortic Stenosis: Perspective Roadmap to a Complex Disease. Front Cardiovasc Med 2018; 5:122. [PMID: 30320123 PMCID: PMC6166095 DOI: 10.3389/fcvm.2018.00122] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 08/17/2018] [Indexed: 12/13/2022] Open
Abstract
Discrete subaortic stenosis (DSS) is a congenital heart disease that results in the formation of a fibro-membranous tissue, causing an increased pressure gradient in the left ventricular outflow tract (LVOT). While surgical resection of the membrane has shown some success in eliminating the obstruction, it poses significant risks associated with anesthesia, sternotomy, and heart bypass, and it remains associated with a high rate of recurrence. Although a genetic etiology had been initially proposed, the association between DSS and left ventricle (LV) geometrical abnormalities has provided more support to a hemodynamic etiology by which congenital or post-surgical LVOT geometric derangements could generate abnormal shear forces on the septal wall, triggering in turn a fibrotic response. Validating this hypothetical etiology and understanding the mechanobiological processes by which altered shear forces induce fibrosis in the LVOT are major knowledge gaps. This perspective paper describes the current state of knowledge of DSS, articulates the research needs to yield mechanistic insights into a significant pathologic process that is poorly understood, and proposes several strategies aimed at elucidating the potential mechanobiological synergies responsible for DSS pathogenesis. The proposed roadmap has the potential to improve DSS management by identifying early targets for prevention of the fibrotic lesion, and may also prove beneficial in other fibrotic cardiovascular diseases associated with altered flow.
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Affiliation(s)
- Danielle D Massé
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH, United States
| | - Jason A Shar
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH, United States
| | - Kathleen N Brown
- Department of Bioengineering, Rice University, Houston, TX, United States
| | - Sundeep G Keswani
- Division of Pediatric Surgery, Texas Children's Hospital, Houston, TX, United States.,Department of Surgery, Baylor College of Medicine, Houston, TX, United States
| | | | - Philippe Sucosky
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH, United States
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24
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Xu S, Xu Y, Yin M, Zhang S, Liu P, Koroleva M, Si S, Little PJ, Pelisek J, Jin ZG. Flow-dependent epigenetic regulation of IGFBP5 expression by H3K27me3 contributes to endothelial anti-inflammatory effects. Theranostics 2018; 8:3007-3021. [PMID: 29896299 PMCID: PMC5996356 DOI: 10.7150/thno.21966] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 02/17/2018] [Indexed: 01/11/2023] Open
Abstract
Rationale: Atherosclerosis is a chronic inflammatory and epigenetic disease that is influenced by different patterns of blood flow. However, the epigenetic mechanism whereby atheroprotective flow controls endothelial gene programming remains elusive. Here, we investigated the possibility that flow alters endothelial gene expression through epigenetic mechanisms. Methods: En face staining and western blot were used to detect protein expression. Real-time PCR was used to determine relative gene expression. RNA-sequencing of human umbilical vein endothelial cells treated with siRNA of enhancer of zeste homolog 2 (EZH2) or laminar flow was used for transcriptional profiling. Results: We found that trimethylation of histone 3 lysine 27 (H3K27me3), a repressive epigenetic mark that orchestrates gene repression, was reduced in laminar flow areas of mouse aorta and flow-treated human endothelial cells. The decrease of H3K27me3 paralleled a reduction in the epigenetic "writer"-EZH2, the catalytic subunit of the polycomb repressive complex 2 (PRC2). Moreover, laminar flow decreased expression of EZH2 via mechanosensitive miR101. Genome-wide transcriptome profiling studies in endothelial cells treated with EZH2 siRNA and flow revealed the upregulation of novel mechanosensitive gene IGFBP5 (insulin-like growth factor-binding protein 5), which is epigenetically silenced by H3K27me3. Functionally, inhibition of H3K27me3 by EZH2 siRNA or GSK126 (a specific EZH2 inhibitor) reduced H3K27me3 levels and monocyte adhesion to endothelial cells. Adenoviral overexpression of IGFBP5 also recapitulated the anti-inflammatory effects of H3K27me3 inhibition. More importantly, we observed EZH2 upregulation, and IGFBP5 downregulation, in advanced atherosclerotic plaques from human patients. Conclusion: Taken together, our findings reveal that atheroprotective flow reduces H3K27me3 as a chromatin-based mechanism to augment the expression of genes that confer an anti-inflammatory response in the endothelium. Our study exemplifies flow-dependent epigenetic regulation of endothelial gene expression, and also suggests that targeting the EZH2/H3K27me3/IGFBP5 pathway may offer novel therapeutics for inflammatory disorders such as atherosclerosis.
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Affiliation(s)
- Suowen Xu
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Yanni Xu
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
- Institute of Medicinal Biotechnology Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Meimei Yin
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Shuya Zhang
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Department of Biochemistry and Molecular Biology, Ningxia Medical University, Yinchuan, China
| | - Peng Liu
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
- Institute of Medicinal Biotechnology Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Marina Koroleva
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Shuyi Si
- Institute of Medicinal Biotechnology Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Peter J. Little
- School of Pharmacy, The University of Queensland, Pharmacy Australia Centre of Excellence (PACE), Woolloongabba QLD 4102, Australia
- Xinhua College of Sun Yat-sen University, Guangzhou, China
| | - Jaroslav Pelisek
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Germany
| | - Zheng Gen Jin
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
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25
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Dumont CM, Piselli J, Temple S, Dai G, Thompson DM. Endothelial Cells Exposed to Fluid Shear Stress Support Diffusion Based Maturation of Adult Neural Progenitor Cells. Cell Mol Bioeng 2017; 11:117-130. [PMID: 31719881 DOI: 10.1007/s12195-017-0516-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 11/18/2017] [Indexed: 12/21/2022] Open
Abstract
Introduction The neural stem cell (NSC) niche is a highly complex cellular and biochemical milieu supporting proliferating NSCs and neural progenitor cells (NPCs) with close apposition to the vasculature, primarily comprised of endothelial cells (ECs). Current in vitro models of the niche incorporate EC-derived factors, but do not reflect the physiologically relevant hemodynamic state of the ECs or the spatial resolution observed between cells within the niche. Methods In this work, we developed a novel in vitro model of the niche that (1) incorporates ECs cultured with fluid shear stress and (2) fosters paracrine cytokine gradients between ECs and NSCs in a spatiotemporal configuration mimicking the cytoarchitecture of the subventricular niche. A modified cone and plate viscometer was used to generate a shear stress of 10 dynes cm-2 for ECs cultured on a membrane, while statically cultured NPCs are 10 or 1000 μm below the ECs. Results NPCs cultured within 10 μm of dynamic ECs exhibit increased PSA-NCAM+ and OLIG2+ cells compared to progenitors in all other culture regimes and the hemodynamic EC phenotype results in distinct progeny phenotypes. This co-culture regime yields greater release of pro-neurogenic factors, suggesting a potential mechanism for the observed progenitor maturation. Conclusions Based on these results, models incorporating ECs exposed to shear stress allow for paracrine signaling gradients and regulate NPC lineage progression with appropriate niche spatial resolution occurring at 10 μm. This model could be used to evaluate cellular or pharmacological interactions within the healthy, diseased, or aged brain.
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Affiliation(s)
- C M Dumont
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180 USA.,Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180 USA
| | - J Piselli
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180 USA.,Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180 USA
| | - S Temple
- Neural Stem Cell Institute, Rensselaer, NY 12144 USA
| | - G Dai
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180 USA.,Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180 USA
| | - D M Thompson
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180 USA.,Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180 USA
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26
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Abstract
PURPOSE OF REVIEW In this paper, we review the progress made thus far in research related to the genetics of peripheral arterial disease (PAD) by detailing efforts to date in heritability, linkage analyses, and candidate gene studies. We further summarize more contemporary genome-wide association studies (GWAS) and epigenetic studies of PAD. Finally, we review current challenges and future avenues of advanced research in PAD genetics including whole genome sequencing studies. RECENT FINDINGS Studies have estimated the heritability of PAD to be moderate, though the contribution to this heritability that is independent of traditional cardiovascular risk factors remains unclear. Recent efforts have identified SNPs associated with PAD in GWAS analyses, but these have yet to be replicated in independent studies. Much remains to be discovered in the field of PAD genetics. An improved understanding of the genetic foundation for PAD will allow for earlier diagnosis of disease and a more complete pathophysiological understanding of the mechanisms of the disease leading to novel therapeutic interventions. Future avenues for success will likely arise from very large-scale GWAS, whole genome sequencing, and epigenetic studies involving very well-characterized cohorts.
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Affiliation(s)
- Nathan Belkin
- Division of Vascular and Endovascular Surgery, Hospital of the University of Pennsylvania, 3400 Spruce Street, 4 Maloney, Philadelphia, PA, 19104, USA
| | - Scott M Damrauer
- Division of Vascular and Endovascular Surgery, Hospital of the University of Pennsylvania, 3400 Spruce Street, 4 Maloney, Philadelphia, PA, 19104, USA. .,Department of Surgery, Corporal Michael Crescenz VA Medical Center, 3900 Woodland Ave., Philadelphia, PA, 19104, USA.
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27
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Casey DP, Ueda K, Wegman-Points L, Pierce GL. Muscle contraction induced arterial shear stress increases endothelial nitric oxide synthase phosphorylation in humans. Am J Physiol Heart Circ Physiol 2017; 313:H854-H859. [PMID: 28801524 PMCID: PMC5668602 DOI: 10.1152/ajpheart.00282.2017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/19/2017] [Accepted: 08/08/2017] [Indexed: 11/22/2022]
Abstract
We determined if local increases in brachial artery shear during repetitive muscle contractions induce changes in protein expression of endothelial nitric oxide synthase (eNOS) and/or phosphorylated (p-)eNOS at Ser1177, the primary activation site on eNOS, in endothelial cells (ECs) of humans. Seven young male subjects (25 ± 1 yr) performed 20 separate bouts (3 min each) of rhythmic forearm exercise at 20% of maximum over a 2-h period. Each bout of exercise was separated by 3 min of rest. An additional six male subjects (24 ± 1 yr) served as time controls (no exercise). ECs were freshly isolated from the brachial artery using sterile J-wires through an arterial catheter at baseline and again after the 2-h exercise or time control period. Expression of eNOS or p-eNOS Ser1177 in ECs was determined via immunofluorescence. Brachial artery mean shear rate was elevated compared with baseline and the time control group throughout the 2-h exercise protocol (P < 0.001). p-eNOS Ser1177 expression was increased 57% in ECs in the exercise group [0.06 ± 0.01 vs. 0.10 ± 0.02 arbitrary units (au), P = 0.02] but not in the time control group (0.08 ± 0.01 vs. 0.07 ± 0.01 au, P = 0.72). In contrast, total eNOS expression did not change in either the exercise (0.13 ± 0.04 vs. 0.12 ± 0.03 au) or time control (0.12 ± 0.03 vs. 0.11 ± 0.03 au) group (P > 0.05 for both). Our novel results suggest that elevations in brachial artery shear increase eNOS Ser1177 phosphorylation in the absence of changes in total eNOS in ECs of young healthy male subjects, suggesting that this model is sufficient to alter posttranslational modification of eNOS activity in vivo in humans.NEW & NOTEWORTHY Elevations in brachial artery shear in response to forearm exercise increased endothelial nitric oxide synthase Ser1177 phosphorylation in brachial artery endothelial cells of healthy humans. Our present study provides the first evidence in humans that muscle contraction-induced increases in conduit arterial shear lead to in vivo posttranslational modification of endothelial nitric oxide synthase activity in endothelial cells.
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Affiliation(s)
- Darren P Casey
- Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, Iowa;
- Abboud Cardiovascular Research Center, University of Iowa, Iowa City, Iowa
- Fraternal Order of Eagles Diabetes Research, University of Iowa, Iowa City, Iowa; and
| | - Kenichi Ueda
- Department of Anesthesia, University of Iowa, Iowa City, Iowa
| | | | - Gary L Pierce
- Department of Health and Human Physiology, University of Iowa, Iowa City, Iowa
- Abboud Cardiovascular Research Center, University of Iowa, Iowa City, Iowa
- Fraternal Order of Eagles Diabetes Research, University of Iowa, Iowa City, Iowa; and
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28
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Biwer LA, Lechauve C, Vanhoose S, Weiss MJ, Isakson BE. A Cell Culture Model of Resistance Arteries. J Vis Exp 2017. [PMID: 28930992 DOI: 10.3791/55992] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The myoendothelial junction (MEJ), a unique signaling microdomain in small diameter resistance arteries, exhibits localization of specific proteins and signaling processes that can control vascular tone and blood pressure. As it is a projection from either the endothelial or smooth muscle cell, and due to its small size (on average, an area of ~1 µm2), the MEJ is difficult to study in isolation. However, we have developed a cell culture model called the vascular cell co-culture (VCCC) that allows for in vitro MEJ formation, endothelial cell polarization, and dissection of signaling proteins and processes in the vascular wall of resistance arteries. The VCCC has a multitude of applications and can be adapted to suit different cell types. The model consists of two cell types grown on opposite sides of a filter with 0.4 µm pores in which the in vitro MEJs can form. Here we describe how to create the VCCC via plating of cells and isolation of endothelial, MEJ, and smooth muscle fractions, which can then be used for protein isolation or activity assays. The filter with intact cell layers can be fixed, embedded, and sectioned for immunofluorescent analysis. Importantly, many of the discoveries from this model have been confirmed using intact resistance arteries, underscoring its physiological relevance.
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Affiliation(s)
- Lauren A Biwer
- Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine; Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine
| | | | - Sheri Vanhoose
- Research Histology Core, University of Virginia School of Medicine
| | | | - Brant E Isakson
- Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine; Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine;
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29
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Giebe S, Cockcroft N, Hewitt K, Brux M, Hofmann A, Morawietz H, Brunssen C. Cigarette smoke extract counteracts atheroprotective effects of high laminar flow on endothelial function. Redox Biol 2017; 12:776-786. [PMID: 28432984 PMCID: PMC5397582 DOI: 10.1016/j.redox.2017.04.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 04/04/2017] [Indexed: 02/04/2023] Open
Abstract
Tobacco smoking and hemodynamic forces are key stimuli in the development of endothelial dysfunction and atherosclerosis. High laminar flow has an atheroprotective effect on the endothelium and leads to a reduced response of endothelial cells to cardiovascular risk factors compared to regions with disturbed or low laminar flow. We hypothesize that the atheroprotective effect of high laminar flow could delay the development of endothelial dysfunction caused by cigarette smoking. Primary human endothelial cells were stimulated with increasing dosages of aqueous cigarette smoke extract (CSEaq). CSEaq reduced cell viability in a dose-dependent manner. The main mediator of cellular adaption to oxidative stress, nuclear factor erythroid 2-related factor 2 (NRF2) and its target genes heme oxygenase (decycling) 1 (HMOX1) or NAD(P)H quinone dehydrogenase 1 (NQO1) were strongly increased by CSEaq in a dose-dependent manner. High laminar flow induced elongation of endothelial cells in the direction of flow, activated the AKT/eNOS pathway, increased eNOS expression, phosphorylation and NO release. These increases were inhibited by CSEaq. Pro-inflammatory adhesion molecules intercellular adhesion molecule-1 (ICAM1), vascular cell adhesion molecule-1 (VCAM1), selectin E (SELE) and chemokine (C-C motif) ligand 2 (CCL2/MCP-1) were increased by CSEaq. Low laminar flow induced VCAM1 and SELE compared to high laminar flow. High laminar flow improved endothelial wound healing. This protective effect was inhibited by CSEaq in a dose-dependent manner through the AKT/eNOS pathway. Low as well as high laminar flow decreased adhesion of monocytes to endothelial cells. Whereas, monocyte adhesion was increased by CSEaq under low laminar flow, this was not evident under high laminar flow. This study shows the activation of major atherosclerotic key parameters by CSEaq. Within this process, high laminar flow is likely to reduce the harmful effects of CSEaq to a certain degree. The identified molecular mechanisms might be useful for development of alternative therapy concepts.
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Affiliation(s)
- Sindy Giebe
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, Medical Faculty Carl Gustav Carus and University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Natalia Cockcroft
- Research & Development, British American Tobacco, Southampton, United Kingdom
| | - Katherine Hewitt
- Research & Development, British American Tobacco, Southampton, United Kingdom
| | - Melanie Brux
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, Medical Faculty Carl Gustav Carus and University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Anja Hofmann
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, Medical Faculty Carl Gustav Carus and University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Henning Morawietz
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, Medical Faculty Carl Gustav Carus and University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany.
| | - Coy Brunssen
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, Medical Faculty Carl Gustav Carus and University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany.
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30
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Franzoni M, Walsh MT. Towards the Identification of Hemodynamic Parameters Involved in Arteriovenous Fistula Maturation and Failure: A Review. Cardiovasc Eng Technol 2017; 8:342-356. [PMID: 28744783 DOI: 10.1007/s13239-017-0322-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 07/13/2017] [Indexed: 12/13/2022]
Abstract
Native arteriovenous fistulas have a high failure rate mainly due to the lack of maturation and uncontrolled neo-intimal hyperplasia development. Newly established hemodynamics is thought to be central in driving the fistula fate, after surgical creation. To investigate the effects of realistic wall shear stress stimuli on endothelial cells, an in vitro approach is necessary in order to reduce the complexity of the in vivo environment. After a systematic review, realistic WSS waveforms were selected and analysed in terms of magnitude, temporal gradient, presence of reversing phases (oscillatory shear index, OSI) and frequency content (hemodynamics index, HI). The effects induced by these waveforms in cellular cultures were also considered, together with the materials and methods used to cultivate and expose cells to WSS stimuli. The results show a wide heterogeneity of experimental approaches and WSS waveform features that prevent a complete understanding of the mechanisms that regulate mechanotransduction. Furthermore, the hemodynamics derived from the carotid bifurcation is the most investigated (in vitro), while the AVF scenario remains poorly addressed. In conclusion, standardisation of the materials and methods employed, as well as the decomposition of realistic WSS profiles, are required for a better understanding of the hemodynamic effects on AVF outcomes. This standardisation may also lead to a new classification of WSS features according to the risk associated with vascular dysfunction.
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Affiliation(s)
- Marco Franzoni
- Centre for Applied Biomedical Engineering Research, Health Research Institute, Bernal Institute, School of Engineering, University of Limerick, Limerick, Ireland
| | - Michael T Walsh
- Centre for Applied Biomedical Engineering Research, Health Research Institute, Bernal Institute, School of Engineering, University of Limerick, Limerick, Ireland.
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Collado MS, Cole BK, Figler RA, Lawson M, Manka D, Simmers MB, Hoang S, Serrano F, Blackman BR, Sinha S, Wamhoff BR. Exposure of Induced Pluripotent Stem Cell-Derived Vascular Endothelial and Smooth Muscle Cells in Coculture to Hemodynamics Induces Primary Vascular Cell-Like Phenotypes. Stem Cells Transl Med 2017. [PMID: 28628273 PMCID: PMC5689791 DOI: 10.1002/sctm.17-0004] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Human induced pluripotent stem cells (iPSCs) can be differentiated into vascular endothelial (iEC) and smooth muscle (iSMC) cells. However, because iECs and iSMCs are not derived from an intact blood vessel, they represent an immature phenotype. Hemodynamics and heterotypic cell:cell communication play important roles in vascular cell phenotypic modulation. Here we tested the hypothesis that hemodynamic exposure of iECs in coculture with iSMCs induces an in vivo‐like phenotype. iECs and iSMCs were cocultured under vascular region‐specific blood flow hemodynamics, and compared to hemodynamic cocultures of blood vessel‐derived endothelial (pEC) and smooth muscle (pSMC) cells. Hemodynamic flow‐induced gene expression positively correlated between pECs and iECs as well as pSMCs and iSMCs. While endothelial nitric oxide synthase 3 protein was lower in iECs than pECs, iECs were functionally mature as seen by acetylated‐low‐density lipoprotein (LDL) uptake. SMC contractile protein markers were also positively correlated between pSMCs and iSMCs. Exposure of iECs and pECs to atheroprone hemodynamics with oxidized‐LDL induced an inflammatory response in both. Dysfunction of the transforming growth factor β (TGFβ) pathway is seen in several vascular diseases, and iECs and iSMCs exhibited a transcriptomic prolife similar to pECs and pSMCs, respectively, in their responses to LY2109761‐mediated transforming growth factor β receptor I/II (TGFβRI/II) inhibition. Although there are differences between ECs and SMCs derived from iPSCs versus blood vessels, hemodynamic coculture restores a high degree of similarity in their responses to pathological stimuli associated with vascular diseases. Thus, iPSC‐derived vascular cells exposed to hemodynamics may provide a viable system for modeling rare vascular diseases and testing new therapeutic approaches. Stem Cells Translational Medicine2017;6:1673–1683
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Affiliation(s)
| | | | | | - Mark Lawson
- HemoShear Therapeutics, LLC, Charlottesville, Virginia, USA
| | - David Manka
- HemoShear Therapeutics, LLC, Charlottesville, Virginia, USA
| | | | - Steve Hoang
- HemoShear Therapeutics, LLC, Charlottesville, Virginia, USA
| | - Felipe Serrano
- Department of Medicine and WT-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
| | | | - Sanjay Sinha
- Department of Medicine and WT-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
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Something is definitely better than nothing: simple strategies to prevent vascular dysfunction. Clin Sci (Lond) 2017; 131:1055-1058. [PMID: 28490600 DOI: 10.1042/cs20170130] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/10/2017] [Accepted: 04/12/2017] [Indexed: 01/09/2023]
Abstract
Understanding the negative health consequences of a physical inactivity has been the topic of much investigation as an alarming number of adults have adopted a sedentary lifestyle. With the rise in sedentarism the field of inactivity physiology has emerged. The goal of inactivity physiology is to identify the impact in inactivity on health and develop strategies that effectively minimize the risk of a sedentary lifestyle. Arising from this field is the finding that excessive sitting is linked to increased cardiovascular and metabolic disease and all-cause mortality. Most importantly, these relationships exist even in individuals that are physically active. Clearly, excessive sitting is an occupational hazard with significant health consequences. Through a series of investigations, including research published this issue of Clinical Science, Padilla and colleagues have identified that prolonged sitting evokes vascular dysfunction and that this dysfunction is caused by reduced shear stress. This commentary highlights this series of investigations and culminates with an overview of how prior exercise and standing are effective strategies to circumvent vascular dysfunction that is caused by excessive sitting.
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Kohlgrüber S, Upadhye A, Dyballa-Rukes N, McNamara CA, Altschmied J. Regulation of Transcription Factors by Reactive Oxygen Species and Nitric Oxide in Vascular Physiology and Pathology. Antioxid Redox Signal 2017; 26:679-699. [PMID: 27841660 PMCID: PMC5421514 DOI: 10.1089/ars.2016.6946] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
SIGNIFICANCE Cardiovascular diseases are the main cause of death worldwide and pose an immense economical burden. In most cases, the underlying problem is vascular occlusion by atherosclerotic plaques. Importantly, different cell types of the vascular wall and the immune system play crucial roles in atherosclerosis at different stages of the disease. Furthermore, atherosclerosis and conditions recognized as risk factors are characterized by a reduced availability of the vasoprotective molecule nitric oxide and an increase in reactive oxygen species, so-called oxidative stress. Transcription factors function as intracellular signal integrators and relays and thus, play a central role in cellular responses to changing conditions. Recent Advances: Work on specific transcriptional regulators has uncovered many of their functions and the upstream pathways modulating their activity in response to reactive oxygen and nitrogen species. Here, we have reviewed for a few selected examples how this can contribute not only to protection against atherosclerosis development but also to disease progression and the occurrence of clinical manifestations, such as plaque rupture. CRITICAL ISSUES Transcription factors have pleiotropic outputs and often also divergent functions in different cell types and tissues. Thus, in light of potential severe adverse side effects, a global activation or inhibition of particular transcriptions factors does not seem a feasible therapeutic option. FUTURE DIRECTIONS A further in-depth characterization of the cell- and stage-specific actions and regulation of transcription factors in atherosclerosis with respect to protein-protein interactions and target genes could open up new avenues for prevention or therapeutic interventions in this vascular disease. Antioxid. Redox Signal. 26, 679-699.
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Affiliation(s)
- Stefanie Kohlgrüber
- 1 IUF-Leibniz Research Institute for Environmental Medicine , Düsseldorf, Germany
| | - Aditi Upadhye
- 2 Department of Microbiology, Immunology, Cancer Biology, University of Virginia , Charlottesville, Virginia
| | - Nadine Dyballa-Rukes
- 1 IUF-Leibniz Research Institute for Environmental Medicine , Düsseldorf, Germany
| | - Coleen A McNamara
- 3 Cardiovascular Division, Department of Medicine and Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine , Charlottesville, Virginia
| | - Joachim Altschmied
- 1 IUF-Leibniz Research Institute for Environmental Medicine , Düsseldorf, Germany
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Green DJ, Hopman MTE, Padilla J, Laughlin MH, Thijssen DHJ. Vascular Adaptation to Exercise in Humans: Role of Hemodynamic Stimuli. Physiol Rev 2017; 97:495-528. [PMID: 28151424 DOI: 10.1152/physrev.00014.2016] [Citation(s) in RCA: 412] [Impact Index Per Article: 58.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
On the 400th anniversary of Harvey's Lumleian lectures, this review focuses on "hemodynamic" forces associated with the movement of blood through arteries in humans and the functional and structural adaptations that result from repeated episodic exposure to such stimuli. The late 20th century discovery that endothelial cells modify arterial tone via paracrine transduction provoked studies exploring the direct mechanical effects of blood flow and pressure on vascular function and adaptation in vivo. In this review, we address the impact of distinct hemodynamic signals that occur in response to exercise, the interrelationships between these signals, the nature of the adaptive responses that manifest under different physiological conditions, and the implications for human health. Exercise modifies blood flow, luminal shear stress, arterial pressure, and tangential wall stress, all of which can transduce changes in arterial function, diameter, and wall thickness. There are important clinical implications of the adaptation that occurs as a consequence of repeated hemodynamic stimulation associated with exercise training in humans, including impacts on atherosclerotic risk in conduit arteries, the control of blood pressure in resistance vessels, oxygen delivery and diffusion, and microvascular health. Exercise training studies have demonstrated that direct hemodynamic impacts on the health of the artery wall contribute to the well-established decrease in cardiovascular risk attributed to physical activity.
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Affiliation(s)
- Daniel J Green
- School of Sport Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia; Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom; Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Physiology, Nijmegen, The Netherlands; Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri; Department of Child Health, University of Missouri, Columbia, Missouri; Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri; Department of Biomedical Sciences, University of Missouri, Columbia, Missouri; and Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Maria T E Hopman
- School of Sport Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia; Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom; Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Physiology, Nijmegen, The Netherlands; Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri; Department of Child Health, University of Missouri, Columbia, Missouri; Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri; Department of Biomedical Sciences, University of Missouri, Columbia, Missouri; and Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Jaume Padilla
- School of Sport Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia; Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom; Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Physiology, Nijmegen, The Netherlands; Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri; Department of Child Health, University of Missouri, Columbia, Missouri; Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri; Department of Biomedical Sciences, University of Missouri, Columbia, Missouri; and Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - M Harold Laughlin
- School of Sport Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia; Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom; Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Physiology, Nijmegen, The Netherlands; Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri; Department of Child Health, University of Missouri, Columbia, Missouri; Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri; Department of Biomedical Sciences, University of Missouri, Columbia, Missouri; and Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Dick H J Thijssen
- School of Sport Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia; Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom; Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Physiology, Nijmegen, The Netherlands; Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri; Department of Child Health, University of Missouri, Columbia, Missouri; Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri; Department of Biomedical Sciences, University of Missouri, Columbia, Missouri; and Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
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Chistiakov DA, Orekhov AN, Bobryshev YV. Effects of shear stress on endothelial cells: go with the flow. Acta Physiol (Oxf) 2017; 219:382-408. [PMID: 27246807 DOI: 10.1111/apha.12725] [Citation(s) in RCA: 255] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 02/17/2016] [Accepted: 05/30/2016] [Indexed: 12/11/2022]
Abstract
Haemodynamic forces influence the functional properties of vascular endothelium. Endothelial cells (ECs) have a variety of receptors, which sense flow and transmit mechanical signals through mechanosensitive signalling pathways to recipient molecules that lead to phenotypic and functional changes. Arterial architecture varies greatly exhibiting bifurcations, branch points and curved regions, which are exposed to various flow patterns. Clinical studies showed that atherosclerotic plaques develop preferentially at arterial branches and curvatures, that is in the regions exposed to disturbed flow and shear stress. In the atheroprone regions, the endothelium has a proinflammatory phenotype associated with low nitric oxide production, reduced barrier function and increased proadhesive, procoagulant and proproliferative properties. Atheroresistant regions are exposed to laminar flow and high shear stress that induce prosurvival antioxidant signals and maintain the quiescent phenotype in ECs. Indeed, various flow patterns contribute to phenotypic and functional heterogeneity of arterial endothelium whose response to proatherogenic stimuli is differentiated. This may explain the preferential development of endothelial dysfunction in arterial sites with disturbed flow.
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Affiliation(s)
- D. A. Chistiakov
- Department of Medical Nanobiotechnology; Pirogov Russian State Medical University; Moscow Russia
| | - A. N. Orekhov
- Institute of General Pathology and Pathophysiology; Russian Academy of Medical Sciences; Moscow Russia
- Institute for Atherosclerosis Research; Skolkovo Innovative Center; Moscow Russia
- Department of Biophysics; Biological Faculty; Moscow State University; Moscow Russia
| | - Y. V. Bobryshev
- Institute of General Pathology and Pathophysiology; Russian Academy of Medical Sciences; Moscow Russia
- Faculty of Medicine and St Vincent's Centre for Applied Medical Research; University of New South Wales; Sydney NSW Australia
- School of Medicine; University of Western Sydney; Campbelltown NSW Australia
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Hasanov Z, Ruckdeschel T, König C, Mogler C, Kapel SS, Korn C, Spegg C, Eichwald V, Wieland M, Appak S, Augustin HG. Endosialin Promotes Atherosclerosis Through Phenotypic Remodeling of Vascular Smooth Muscle Cells. Arterioscler Thromb Vasc Biol 2017; 37:495-505. [PMID: 28126825 DOI: 10.1161/atvbaha.116.308455] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 01/11/2017] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Vascular smooth muscle cells (VSMC) play a key role in the pathogenesis of atherosclerosis, the globally leading cause of death. The transmembrane orphan receptor endosialin (CD248) has been characterized as an activation marker of cells of the mesenchymal lineage including tumor-associated pericytes, stromal myofibroblasts, and activated VSMC. We, therefore, hypothesized that VSMC-expressed endosialin may display functional involvement in the pathogenesis of atherosclerosis. APPROACH AND RESULTS Expression of endosialin was upregulated during atherosclerosis in apolipoprotein E (ApoE)-null mice and human atherosclerotic samples analyzed by quantitative real-time polymerase chain reaction and immunohistochemistry. Atherosclerosis, assessed by Oil Red O staining of the descending aorta, was significantly reduced in ApoE/endosialin-deficient mice on Western-type diet. Marker analysis of VSMC in lesions induced by shear stress-modifying cast implantation around the right carotid artery identified a more pronounced contractile VSMC phenotype in the absence of endosialin. Moreover, in addition to contributing to neointima formation, endosialin also potentially regulated the proinflammatory phenotype of VSMC as evidenced in surrogate cornea pocket assay experiments in vivo and corresponding flow cytometry and ELISA analyses in vitro. CONCLUSIONS The experiments identify endosialin as a potential regulator of phenotypic remodeling of VSMC contributing to atherosclerosis. The association of endosialin with atherosclerosis and its absent expression in nonatherosclerotic samples warrant further consideration of endosialin as a therapeutic target and biomarker.
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Affiliation(s)
- Zulfiyya Hasanov
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Tina Ruckdeschel
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Courtney König
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Carolin Mogler
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Stephanie S Kapel
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Claudia Korn
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Carleen Spegg
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Viktoria Eichwald
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Matthias Wieland
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Sila Appak
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.)
| | - Hellmut G Augustin
- From the Division of Vascular Oncology and Metastasis (Z.H., T.R., C.K., C.M., S.S.K., C.K., C.S., M.W., S.A., H.G.A.) and Small Animal Imaging (V.E.), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany; Institute of Pathology, Technical University Munich, Germany (C.M.); Department of Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM), Heidelberg University, Germany (S.S.K., M.W., H.G.A.); and German Cancer Consortium, Heidelberg, Germany (H.G.A.).
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Sistare FD, Mattes WB, LeCluyse EL. The Promise of New Technologies to Reduce, Refine, or Replace Animal Use while Reducing Risks of Drug Induced Liver Injury in Pharmaceutical Development. ILAR J 2017; 57:186-211. [DOI: 10.1093/ilar/ilw025] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 07/25/2016] [Accepted: 09/13/2016] [Indexed: 12/19/2022] Open
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Eom S, Park SM, Han SJ, Kim JW, Kim DS. One-step fabrication of a tunable nanofibrous well insert via electrolyte-assisted electrospinning. RSC Adv 2017. [DOI: 10.1039/c7ra06629e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
One-step fabrication process of a nanofibrous well insert is developed. Both fabrication and integration of the nanofiber membrane on a Transwell insert could be achieved by adopting electrolyte-assisted electrospinning.
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Affiliation(s)
- Seongsu Eom
- Department of Mechanical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- 37673 South Korea
| | - Sang Min Park
- Department of Mechanical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- 37673 South Korea
| | - Seon Jin Han
- Department of Mechanical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- 37673 South Korea
| | - Joon Wan Kim
- Institute of Innovative Research (IIR)
- Tokyo Institute of Technology (TOKYO TECH)
- Yokohama
- 226-8503 Japan
| | - Dong Sung Kim
- Department of Mechanical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- 37673 South Korea
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Feaver RE, Cole BK, Lawson MJ, Hoang SA, Marukian S, Blackman BR, Figler RA, Sanyal AJ, Wamhoff BR, Dash A. Development of an in vitro human liver system for interrogating nonalcoholic steatohepatitis. JCI Insight 2016; 1:e90954. [PMID: 27942596 DOI: 10.1172/jci.insight.90954] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
A barrier to drug development for nonalcoholic steatohepatitis (NASH) is the absence of translational preclinical human-relevant systems. An in vitro liver model was engineered to incorporate hepatic sinusoidal flow, transport, and lipotoxic stress risk factors (glucose, insulin, free fatty acids) with cocultured primary human hepatocytes, hepatic stellate cells (HSCs), and macrophages. Transcriptomic, lipidomic, and functional endpoints were evaluated and compared with clinical data from NASH patient biopsies. The lipotoxic milieu promoted hepatocyte lipid accumulation (4-fold increase, P < 0.01) and a lipidomics signature similar to NASH biopsies. Hepatocyte glucose output increased with decreased insulin sensitivity. These changes were accompanied by increased inflammatory analyte secretion (e.g., IL-6, IL-8, alanine aminotransferase). Fibrogenic activation markers increased with lipotoxic conditions, including secreted TGF-β (>5-fold increase, P < 0.05), extracellular matrix gene expression, and HSC activation. Significant pathway correlation existed between this in vitro model and human biopsies. Consistent with clinical trial data, 0.5 μM obeticholic acid in this model promoted a healthy lipidomic signature, reduced inflammatory and fibrotic secreted factors, but also increased ApoB secretion, suggesting a potential adverse effect on lipoprotein metabolism. Lipotoxic stress activates similar biological signatures observed in NASH patients in this system, which may be relevant for interrogating novel therapeutic approaches to treat NASH.
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Affiliation(s)
- Ryan E Feaver
- HemoShear Therapeutics LLC, Charlottesville, Virginia, USA
| | | | - Mark J Lawson
- HemoShear Therapeutics LLC, Charlottesville, Virginia, USA
| | | | | | | | | | - Arun J Sanyal
- Department of Internal Medicine, Virginia Commonwealth University School of Medicine, Richmond, Virgina, USA
| | | | - Ajit Dash
- HemoShear Therapeutics LLC, Charlottesville, Virginia, USA
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Bretón-Romero R, Wang N, Palmisano J, Larson MG, Vasan RS, Mitchell GF, Benjamin EJ, Vita JA, Hamburg NM. Cross-Sectional Associations of Flow Reversal, Vascular Function, and Arterial Stiffness in the Framingham Heart Study. Arterioscler Thromb Vasc Biol 2016; 36:2452-2459. [PMID: 27789476 DOI: 10.1161/atvbaha.116.307948] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 10/16/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Experimental studies link oscillatory flow accompanied by flow reversal to impaired endothelial cell function. The relation of flow reversal with vascular function and arterial stiffness remains incompletely defined. APPROACH AND RESULTS We measured brachial diastolic flow patterns along with vasodilator function in addition to tonometry-based central and peripheral arterial stiffness in 5708 participants (age 47±13 years, 53% women) in the Framingham Heart Study Offspring and Third Generation cohorts. Brachial artery diastolic flow reversal was present in 35% of the participants. In multivariable regression models, the presence of flow reversal was associated with lower flow-mediated dilation (3.9±0.2 versus 5.0±0.2%; P<0.0001) and reactive hyperemic flow velocity (50±0.99 versus 57±0.93 cm/s; P<0.0001). The presence of flow reversal (compared with absence) was associated with higher central aortic stiffness (carotid-femoral pulse wave velocity 9.3±0.1 versus 8.9±0.1 m/s), lower muscular artery stiffness (carotid-radial pulse wave velocity 9.6±0.1 versus 9.8±0.1 m/s), and higher forearm vascular resistance (5.32±0.03 versus 4.66±0.02 log dyne/s/cm5; P<0.0001). The relations of diastolic flow velocity with flow-mediated dilation, aortic stiffness, and forearm vascular resistance were nonlinear, with a steeper decline in vascular function associated with increasing magnitude of flow reversal. CONCLUSIONS In our large, community-based sample, brachial artery flow reversal was common and associated with impaired vasodilator function and higher aortic stiffness. Our findings are consistent with the concept that flow reversal may contribute to vascular dysfunction.
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Affiliation(s)
- Rosa Bretón-Romero
- From the Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study (M.G.L., R.S.V., E.J.B.), MA; Cardiology (R.S.V., E.J.B., J.A.V., N.M.H.) and Preventive Medicine Sections (R.S.V., E.J.B.), and Whitaker Cardiovascular Institute, School of Medicine (R.B.-R., R.S.V., E.J.B., J.A.V., N.M.H.), School of Public Health (N.W., J.P., M.G.L., R.S.V., E.J.B.), and Departments of Mathematics and Statistics (M.G.L.), Boston University, MA; and Cardiovascular Engineering Inc, Norwood, MA (G.F.M.)
| | - Na Wang
- From the Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study (M.G.L., R.S.V., E.J.B.), MA; Cardiology (R.S.V., E.J.B., J.A.V., N.M.H.) and Preventive Medicine Sections (R.S.V., E.J.B.), and Whitaker Cardiovascular Institute, School of Medicine (R.B.-R., R.S.V., E.J.B., J.A.V., N.M.H.), School of Public Health (N.W., J.P., M.G.L., R.S.V., E.J.B.), and Departments of Mathematics and Statistics (M.G.L.), Boston University, MA; and Cardiovascular Engineering Inc, Norwood, MA (G.F.M.)
| | - Joseph Palmisano
- From the Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study (M.G.L., R.S.V., E.J.B.), MA; Cardiology (R.S.V., E.J.B., J.A.V., N.M.H.) and Preventive Medicine Sections (R.S.V., E.J.B.), and Whitaker Cardiovascular Institute, School of Medicine (R.B.-R., R.S.V., E.J.B., J.A.V., N.M.H.), School of Public Health (N.W., J.P., M.G.L., R.S.V., E.J.B.), and Departments of Mathematics and Statistics (M.G.L.), Boston University, MA; and Cardiovascular Engineering Inc, Norwood, MA (G.F.M.)
| | - Martin G Larson
- From the Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study (M.G.L., R.S.V., E.J.B.), MA; Cardiology (R.S.V., E.J.B., J.A.V., N.M.H.) and Preventive Medicine Sections (R.S.V., E.J.B.), and Whitaker Cardiovascular Institute, School of Medicine (R.B.-R., R.S.V., E.J.B., J.A.V., N.M.H.), School of Public Health (N.W., J.P., M.G.L., R.S.V., E.J.B.), and Departments of Mathematics and Statistics (M.G.L.), Boston University, MA; and Cardiovascular Engineering Inc, Norwood, MA (G.F.M.)
| | - Ramachandran S Vasan
- From the Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study (M.G.L., R.S.V., E.J.B.), MA; Cardiology (R.S.V., E.J.B., J.A.V., N.M.H.) and Preventive Medicine Sections (R.S.V., E.J.B.), and Whitaker Cardiovascular Institute, School of Medicine (R.B.-R., R.S.V., E.J.B., J.A.V., N.M.H.), School of Public Health (N.W., J.P., M.G.L., R.S.V., E.J.B.), and Departments of Mathematics and Statistics (M.G.L.), Boston University, MA; and Cardiovascular Engineering Inc, Norwood, MA (G.F.M.)
| | - Gary F Mitchell
- From the Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study (M.G.L., R.S.V., E.J.B.), MA; Cardiology (R.S.V., E.J.B., J.A.V., N.M.H.) and Preventive Medicine Sections (R.S.V., E.J.B.), and Whitaker Cardiovascular Institute, School of Medicine (R.B.-R., R.S.V., E.J.B., J.A.V., N.M.H.), School of Public Health (N.W., J.P., M.G.L., R.S.V., E.J.B.), and Departments of Mathematics and Statistics (M.G.L.), Boston University, MA; and Cardiovascular Engineering Inc, Norwood, MA (G.F.M.)
| | - Emelia J Benjamin
- From the Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study (M.G.L., R.S.V., E.J.B.), MA; Cardiology (R.S.V., E.J.B., J.A.V., N.M.H.) and Preventive Medicine Sections (R.S.V., E.J.B.), and Whitaker Cardiovascular Institute, School of Medicine (R.B.-R., R.S.V., E.J.B., J.A.V., N.M.H.), School of Public Health (N.W., J.P., M.G.L., R.S.V., E.J.B.), and Departments of Mathematics and Statistics (M.G.L.), Boston University, MA; and Cardiovascular Engineering Inc, Norwood, MA (G.F.M.)
| | - Joseph A Vita
- From the Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study (M.G.L., R.S.V., E.J.B.), MA; Cardiology (R.S.V., E.J.B., J.A.V., N.M.H.) and Preventive Medicine Sections (R.S.V., E.J.B.), and Whitaker Cardiovascular Institute, School of Medicine (R.B.-R., R.S.V., E.J.B., J.A.V., N.M.H.), School of Public Health (N.W., J.P., M.G.L., R.S.V., E.J.B.), and Departments of Mathematics and Statistics (M.G.L.), Boston University, MA; and Cardiovascular Engineering Inc, Norwood, MA (G.F.M.)
| | - Naomi M Hamburg
- From the Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study (M.G.L., R.S.V., E.J.B.), MA; Cardiology (R.S.V., E.J.B., J.A.V., N.M.H.) and Preventive Medicine Sections (R.S.V., E.J.B.), and Whitaker Cardiovascular Institute, School of Medicine (R.B.-R., R.S.V., E.J.B., J.A.V., N.M.H.), School of Public Health (N.W., J.P., M.G.L., R.S.V., E.J.B.), and Departments of Mathematics and Statistics (M.G.L.), Boston University, MA; and Cardiovascular Engineering Inc, Norwood, MA (G.F.M.).
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Abstract
INTRODUCTION Drug induced steatohepatitis (DISH), a form of drug induced liver injury (DILI) is characterized by intracellular accumulation of lipids in hepatocytes and subsequent inflammatory events, in some ways similar to the pathology seen with other metabolic, viral and genetic causes of non alcoholic fatty liver disease and steatohepatitis (NAFLD and NASH). Areas covered: This paper provides a comprehensive review of the main underlying mechanisms by which various drugs cause DISH, and outlines existing preclinical tools to predict it and study underlying pathways involved. The translational hurdles of these models are discussed, with the example of an organotypic liver system designed to address them. Finally, we describe the clinical assessment and management of DISH. Expert Opinion: The complexity of the interconnected mechanistic pathways underlying DISH makes it important that preclinical evaluation of drugs is done in a physiologically and metabolically relevant context. Advanced organotypic tissue models, coupled with translational functional biomarkers and next-generational pan-omic measurements, may offer the best shot at gathering mechanistic knowledge and potential of a drug causing steatohepatitis. Ultimately this information could also help predict, detect or guide the development of specific treatments for DISH, which is an unmet need as of today.
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Affiliation(s)
- Ajit Dash
- a HemoShear Therapeutics LLC , Charlottesville , VA , USA
| | | | - Arun J Sanyal
- b Department of Internal Medicine, School of Medicine , Virginia Commonwealth University , Richmond , VA , USA
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Simmers MB, Cole BK, Ogletree ML, Chen Z, Xu Y, Kong LJ, Mackman N, Blackman BR, Wamhoff BR. Hemodynamics associated with atrial fibrillation directly alters thrombotic potential of endothelial cells. Thromb Res 2016; 143:34-9. [DOI: 10.1016/j.thromres.2016.04.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 04/22/2016] [Accepted: 04/26/2016] [Indexed: 12/17/2022]
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43
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Hai Z, Zuo W. Aberrant DNA methylation in the pathogenesis of atherosclerosis. Clin Chim Acta 2016; 456:69-74. [DOI: 10.1016/j.cca.2016.02.026] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/24/2016] [Accepted: 02/28/2016] [Indexed: 11/26/2022]
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44
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Wolf F, Vogt F, Schmitz-Rode T, Jockenhoevel S, Mela P. Bioengineered vascular constructs as living models for in vitro cardiovascular research. Drug Discov Today 2016; 21:1446-1455. [PMID: 27126777 DOI: 10.1016/j.drudis.2016.04.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 04/01/2016] [Accepted: 04/18/2016] [Indexed: 12/20/2022]
Abstract
Cardiovascular diseases represent the most common cause of morbidity and mortality worldwide. In this review, we explore the potential of bioengineered vascular constructs as living models for in vitro cardiovascular research to advance the current knowledge of pathophysiological processes and support the development of clinical therapies. Bioengineered vascular constructs capable of recapitulating the cellular and mechanical environment of native vessels represent a valuable platform to study cellular interactions and signaling cascades, test drugs and medical devices under (patho)physiological conditions, with the additional potential benefit of reducing the number of animals required for preclinical testing.
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Affiliation(s)
- Frederic Wolf
- Department of Tissue Engineering & Textile Implants, Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Pauwelsstraße 20, 52074 Aachen, Germany
| | - Felix Vogt
- Department of Cardiology, Pulmonology, Intensive Care and Vascular Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Thomas Schmitz-Rode
- Department of Tissue Engineering & Textile Implants, Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Pauwelsstraße 20, 52074 Aachen, Germany; Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute Aachen, RWTH Aachen University, Pauwelsstraße 20, 52074 Aachen, Germany
| | - Stefan Jockenhoevel
- Department of Tissue Engineering & Textile Implants, Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Pauwelsstraße 20, 52074 Aachen, Germany; Institut für Textiltechnik, RWTH Aachen University, Otto-Blumenthal-Str. 1, 52074 Aachen, Germany; Aachen-Maastricht Institute for Biobased Materials, Maastricht University at Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, The Netherlands.
| | - Petra Mela
- Department of Tissue Engineering & Textile Implants, Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Pauwelsstraße 20, 52074 Aachen, Germany
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45
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Deshpande D, Kethireddy S, Janero DR, Amiji MM. Therapeutic Efficacy of an ω-3-Fatty Acid-Containing 17-β Estradiol Nano-Delivery System against Experimental Atherosclerosis. PLoS One 2016; 11:e0147337. [PMID: 26840601 PMCID: PMC4740455 DOI: 10.1371/journal.pone.0147337] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 12/31/2015] [Indexed: 12/22/2022] Open
Abstract
Atherosclerosis and its consequences remain prevalent clinical challenges throughout the world. Initiation and progression of atherosclerosis involves a complex, dynamic interplay among inflammation, hyperlipidemia, and endothelial dysfunction. A multicomponent treatment approach targeted for delivery within diseased vessels could prove beneficial in treating atherosclerosis. This study was undertaken to evaluate the multimodal effects of a novel ω-3-fatty acid-rich, 17-β-estradiol (17-βE)-loaded, CREKA-peptide-modified nanoemulsion system on experimental atherosclerosis. In vitro treatment of cultured human aortic endothelial cells (ECs) with the 17-βE-loaded, CREKA-peptide-modified nanoemulsion system increased cellular nitrate/nitrite, indicating improved nitric oxide formation. In vivo, systemic administration of this nanoemulsion system to apolipoprotein-E knock out (ApoE-/-) mice fed a high-fat diet significantly improved multiple parameters related to the etiology and development of occlusive atherosclerotic vasculopathy: lesion area, circulating plasma lipid levels, and expression of aortic-wall inflammatory markers. These salutary effects were attributed selectively to the 17-βE and/or ω-3 polyunsaturated fatty acid components of the nano-delivery system. At therapeutic doses, the 17-βE-loaded, CREKA-peptide modified nanoemulsion system appeared to be biocompatible in that it elicited no apparent adverse/toxic effects, as indexed by body weight, plasma alanine aminotransferase/aspartate aminotransferase levels, and liver and kidney histopathology. The study demonstrates the therapeutic potential of a novel, 17-βE-loaded, CREKA-peptide-modified nanoemulsion system against atherosclerosis in a multimodal fashion by reducing lesion size, lowering the levels of circulating plasma lipids and decreasing the gene expression of inflammatory markers associated with the disease.
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Affiliation(s)
- Dipti Deshpande
- Department of Pharmaceutical Sciences, School of Pharmacy, Bouvé College of Health Sciences, Northeastern University, Boston, Massachusetts, United States of America
| | - Sravani Kethireddy
- Department of Pharmaceutical Sciences, School of Pharmacy, Bouvé College of Health Sciences, Northeastern University, Boston, Massachusetts, United States of America
| | - David R. Janero
- Department of Pharmaceutical Sciences, School of Pharmacy, Bouvé College of Health Sciences, Northeastern University, Boston, Massachusetts, United States of America
- Center for Drug Discovery, School of Pharmacy, Bouvé College of Health Sciences, Northeastern University, Boston, Massachusetts, United States of America
| | - Mansoor M. Amiji
- Department of Pharmaceutical Sciences, School of Pharmacy, Bouvé College of Health Sciences, Northeastern University, Boston, Massachusetts, United States of America
- Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- * E-mail:
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46
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Transcriptional profiling suggests that Nevirapine and Ritonavir cause drug induced liver injury through distinct mechanisms in primary human hepatocytes. Chem Biol Interact 2015; 255:31-44. [PMID: 26626330 DOI: 10.1016/j.cbi.2015.11.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 10/28/2015] [Accepted: 11/20/2015] [Indexed: 12/25/2022]
Abstract
Drug induced liver injury (DILI), a major cause of pre- and post-approval failure, is challenging to predict pre-clinically due to varied underlying direct and indirect mechanisms. Nevirapine, a non-nucleoside reverse transcriptase inhibitor (NNRTI) and Ritonavir, a protease inhibitor, are antiviral drugs that cause clinical DILI with different phenotypes via different mechanisms. Assessing DILI in vitro in hepatocyte cultures typically requires drug exposures significantly higher than clinical plasma Cmax concentrations, making clinical interpretations of mechanistic pathway changes challenging. We previously described a system that uses liver-derived hemodynamic blood flow and transport parameters to restore primary human hepatocyte biology, and drug responses at concentrations relevant to in vivo or clinical exposure levels. Using this system, primary hepatocytes from 5 human donors were exposed to concentrations approximating clinical therapeutic and supra-therapeutic levels of Nevirapine (11.3 and 175.0 μM) and Ritonavir (3.5 and 62.4 μM) for 48 h. Whole genome transcriptomics was performed by RNAseq along with functional assays for metabolic activity and function. We observed effects at both doses, but a greater number of genes were differentially expressed with higher probability at the toxic concentrations. At the toxic doses, both drugs showed direct cholestatic potential with Nevirapine increasing bile synthesis and Ritonavir inhibiting bile acid transport. Clear differences in antigen presentation were noted, with marked activation of MHC Class I by Nevirapine and suppression by Ritonavir. This suggests CD8+ T cell involvement for Nevirapine and possibly NK Killer cells for Ritonavir. Both compounds induced several drug metabolizing genes (including CYP2B6, CYP3A4 and UGT1A1), mediated by CAR activation in Nevirapine and PXR in Ritonavir. Unlike Ritonavir, Nevirapine did not increase fatty acid synthesis or activate the respiratory electron chain with simultaneous mitochondrial uncoupling supporting clinical reports of a lower propensity for steatosis. This in vitro study offers insights into the disparate direct and immune-mediated toxicity mechanisms underlying Nevirapine and Ritonavir toxicity in the clinic.
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47
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Atkinson CL, Lewis NCS, Carter HH, Thijssen DHJ, Ainslie PN, Green DJ. Impact of sympathetic nervous system activity on post-exercise flow-mediated dilatation in humans. J Physiol 2015; 593:5145-56. [PMID: 26437709 PMCID: PMC4666994 DOI: 10.1113/jp270946] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 09/21/2015] [Indexed: 02/06/2023] Open
Abstract
Transient reduction in vascular function following systemic large muscle group exercise has previously been reported in humans. The mechanisms responsible are currently unknown. We hypothesised that sympathetic nervous system activation, induced by cycle ergometer exercise, would contribute to post-exercise reductions in flow-mediated dilatation (FMD). Ten healthy male subjects (28 ± 5 years) undertook two 30 min sessions of cycle exercise at 75% HR(max). Prior to exercise, individuals ingested either a placebo or an α1-adrenoreceptor blocker (prazosin; 0.05 mg kg(-1)). Central haemodynamics, brachial artery shear rate (SR) and blood flow profiles were assessed throughout each exercise bout and in response to brachial artery FMD, measured prior to, immediately after and 60 min after exercise. Cycle exercise increased both mean and antegrade SR (P < 0.001) with retrograde SR also elevated under both conditions (P < 0.001). Pre-exercise FMD was similar on both occasions, and was significantly reduced (27%) immediately following exercise in the placebo condition (t-test, P = 0.03). In contrast, FMD increased (37%) immediately following exercise in the prazosin condition (t-test, P = 0.004, interaction effect P = 0.01). Post-exercise FMD remained different between conditions after correction for baseline diameters preceding cuff deflation and also post-deflation SR. No differences in FMD or other variables were evident 60 min following recovery. Our results indicate that sympathetic vasoconstriction competes with endothelium-dependent dilator activity to determine post-exercise arterial function. These findings have implications for understanding the chronic impacts of interventions, such as exercise training, which affect both sympathetic activity and arterial shear stress.
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Affiliation(s)
- Ceri L Atkinson
- School of Sports Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia
| | - Nia C S Lewis
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Howard H Carter
- School of Sports Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia
| | - Dick H J Thijssen
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
- Radboud Institute for Health Sciences, Department of Physiology, Nijmegen, Netherlands
| | - Philip N Ainslie
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Daniel J Green
- School of Sports Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
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Cole BK, Simmers MB, Feaver R, Qualls CW, Collado MS, Berzin E, Figler RA, Pryor AW, Lawson M, Mackey A, Manka D, Wamhoff BR, Turk JR, Blackman BR. An In Vitro Cynomolgus Vascular Surrogate System for Preclinical Drug Assessment and Human Translation. Arterioscler Thromb Vasc Biol 2015; 35:2185-95. [DOI: 10.1161/atvbaha.115.306245] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 08/06/2015] [Indexed: 01/29/2023]
Abstract
Objectives—
The predictive value of animal and in vitro systems for drug development is limited, particularly for nonhuman primate studies as it is difficult to deduce the drug mechanism of action. We describe the development of an in vitro cynomolgus macaque vascular system that reflects the in vivo biology of healthy, atheroprone, or advanced inflammatory cardiovascular disease conditions.
Approach and Results—
We compare the responses of the in vitro human and cynomolgus vascular systems to 4 statins. Although statins exert beneficial pleiotropic effects on the human vasculature, the mechanism of action is difficult to investigate at the tissue level. Using RNA sequencing, we quantified the response to statins and report that most statins significantly increased the expression of genes that promote vascular health while suppressing inflammatory cytokine gene expression. Applying computational pathway analytics, we identified statin-regulated biological themes, independent of cholesterol lowering, that provide mechanisms for off-target effects, including thrombosis, cell cycle regulation, glycogen metabolism, and ethanol degradation.
Conclusions—
The cynomolgus vascular system described herein mimics the baseline and inflammatory regional biology of the human vasculature, including statin responsiveness, and provides mechanistic insight not achievable in vivo.
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Affiliation(s)
- Banumathi K. Cole
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Michael B. Simmers
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Ryan Feaver
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Charles W. Qualls
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - M. Sol Collado
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Erica Berzin
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Robert A. Figler
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Andrew W. Pryor
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Mark Lawson
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Aaron Mackey
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - David Manka
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Brian R. Wamhoff
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - James R. Turk
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
| | - Brett R. Blackman
- From the NASH Program (B.K.C., R.F.), Technology and Research Platforms (M.B.S.), Rare Diseases Program (M.S.C.), Vascular Program (E.B., D.M.), Pharmacology (R.A.F.), Cell Culture (A.W.P.), Computational Biology (M.L., A.M.), VP of Research and Development (B.R.W.), and Chief Scientific Officer (B.R.B.), HemoShear Therapeutics LLC, Charlottesville, VA (B.K.C., M.B.S., R.F., M.S.C., E.B., R.A.F., A.W.P., M.L., A.M., D.M., B.R.W, B.R.B.); and Comparative Biology and Safety Sciences (C.W.Q., J.R.T.),
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49
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Rashdan NA, Lloyd PG. Fluid shear stress upregulates placental growth factor in the vessel wall via NADPH oxidase 4. Am J Physiol Heart Circ Physiol 2015; 309:H1655-66. [PMID: 26408539 DOI: 10.1152/ajpheart.00408.2015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 09/22/2015] [Indexed: 01/02/2023]
Abstract
Placental growth factor (PLGF), a potent stimulator of arteriogenesis, is upregulated during outward arterial remodeling. Increased fluid shear stress (FSS) is a key physiological stimulus for arteriogenesis. However, the role of FSS in regulating PLGF expression is unknown. To test the hypothesis that FSS regulates PLGF expression in vascular cells and to identify the signaling pathways involved, human coronary artery endothelial cells (HCAEC) and human coronary artery smooth muscle cells were cultured on either side of porous Transwell inserts. HCAEC were then exposed to pulsatile FSS of 0.07 Pa ("normal," mimicking flow through quiescent collaterals), 1.24 Pa ("high," mimicking increased flow in remodeling collaterals), or 0.00 Pa ("static") for 2 h. High FSS increased secreted PLGF protein ∼1.4-fold compared with static control (n = 5, P < 0.01), while normal FSS had no significant effect on PLGF. Similarly, high flow stimulated PLGF mRNA expression nearly twofold in isolated mouse mesenteric arterioles. PLGF knockdown using siRNA revealed that HCAEC were the primary source of PLGF in cocultures (n = 5, P < 0.01). Both H2O2 and nitric oxide production were increased by FSS compared with static control (n = 5, P < 0.05). N(G)-nitro-l-arginine methyl ester (100 μM) had no significant effect on the FSS-induced increase in PLGF. In contrast, both catalase (500 U/ml) and diphenyleneiodonium (5 μM) attenuated the effects of FSS on PLGF protein in cocultures. Diphenyleneiodonium also blocked the effect of high flow to upregulate PLGF mRNA in isolated arterioles. Further studies identified NADPH oxidase 4 as a source of reactive oxygen species for this pathway. We conclude that FSS regulates PLGF expression via NADPH oxidase 4 and reactive oxygen species signaling.
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Affiliation(s)
- Nabil A Rashdan
- Department of Physiological Sciences, Oklahoma State University, Stillwater, Oklahoma
| | - Pamela G Lloyd
- Department of Physiological Sciences, Oklahoma State University, Stillwater, Oklahoma
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50
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Munoz-Pinto DJ, Guiza-Arguello VR, Becerra-Bayona SM, Erndt-Marino J, Samavedi S, Malmut S, Russell B, Hӧӧk M, Hahn MS. Collagen-mimetic hydrogels promote human endothelial cell adhesion, migration and phenotypic maturation. J Mater Chem B 2015; 3:7912-7919. [PMID: 28989705 DOI: 10.1039/c5tb00990a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This work evaluates the response of human aortic endothelial cells (HAECs) to thromboresistant collagen-mimetic hydrogel coatings toward improving the biocompatibility of existing "off-the-shelf" small-caliber vascular grafts. Specifically, bioactive hydrogels - previously shown to support α1/α2 integrin-mediated cell adhesion but to resist platelet activation - were fabricated by combining poly(ethylene glycol) (PEG) with a 120 kDa, triple-helical collagen-mimetic protein(Scl2-2) containing the GFPGER adhesion sequence. Analysis of HAECs seeded onto the resulting PEG-Scl2-2 hydrogels demonstrated that HAEC adhesion increased with increasing Scl2-2 concentration, while HAEC migration rate decreased over this same concentration range. In addition, evaluation of HAEC phenotype at confluence indicated significant differences in the gene expression of NOS3, thrombomodulin, and E-selectin on the PEG-Scl2-2 hydrogels relative to PEG-collagen controls. At the protein level, however, only NOS3 was significantly different between the PEG-Scl2-2 and PEG-collagen surfaces. Furthermore, PECAM-1 and VE-cadherin expression on PEG-Scl2-2 hydrogels versus PEG-collagen controls could not be distinguished at either the gene or protein level. Cumulatively, these data indicate the PEG-Scl2-2 hydrogels warrant further investigation as "off-the-shelf" graft coatings. In future studies, the Scl2-2 protein can potentially be modified to include additional extracellular matrix or cytokine binding sites to further improve endothelial cell responses.
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Affiliation(s)
- Dany J Munoz-Pinto
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY
| | | | | | - Josh Erndt-Marino
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY
| | - Satyavrata Samavedi
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY
| | - Sarah Malmut
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY
| | - Brooke Russell
- Center for Infectious and Inflammatory Diseases, Texas A&M Health Science Center, Houston, TX
| | - Magnus Hӧӧk
- Center for Infectious and Inflammatory Diseases, Texas A&M Health Science Center, Houston, TX
| | - Mariah S Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY
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