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Radhakrishnan S, Shenoy SJ, Devidasan I, Shaji BV, Gopal S, Sreekumaran S, Sp A, Sivaraman DM, Mohan N. Periostin regulates lysyl oxidase through ERK1/2 MAPK-dependent serum response factor in activated cardiac fibroblasts. Cell Biochem Funct 2024; 42:e4066. [PMID: 38822669 DOI: 10.1002/cbf.4066] [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: 11/04/2023] [Revised: 05/17/2024] [Accepted: 05/22/2024] [Indexed: 06/03/2024]
Abstract
Collagen crosslinking, mediated by lysyl oxidase, is an adaptive mechanism of the cardiac repair process initiated by cardiac fibroblasts postmyocardial injury. However, excessive crosslinking leads to cardiac wall stiffening, which impairs the contractile properties of the left ventricle and leads to heart failure. In this study, we investigated the role of periostin, a matricellular protein, in the regulation of lysyl oxidase in cardiac fibroblasts in response to angiotensin II and TGFβ1. Our results indicated that periostin silencing abolished the angiotensin II and TGFβ1-mediated upregulation of lysyl oxidase. Furthermore, the attenuation of periostin expression resulted in a notable reduction in the activity of lysyl oxidase. Downstream of periostin, ERK1/2 MAPK signaling was found to be activated, which in turn transcriptionally upregulates the serum response factor to facilitate the enhanced expression of lysyl oxidase. The periostin-lysyl oxidase association was also positively correlated in an in vivo rat model of myocardial infarction. The expression of periostin and lysyl oxidase was upregulated in the collagen-rich fibrotic scar tissue of the left ventricle. Remarkably, echocardiography data showed a reduction in the left ventricular wall movement, ejection fraction, and fractional shortening, indicative of enhanced stiffening of the cardiac wall. These findings shed light on the mechanistic role of periostin in the collagen crosslinking initiated by activated cardiac fibroblasts. Our findings signify periostin as a possible therapeutic target to reduce excessive collagen crosslinking that contributes to the structural remodeling associated with heart failure.
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Affiliation(s)
- Sruthi Radhakrishnan
- Department of Pathology, Division of Cellular and Molecular Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - Sachin J Shenoy
- Department of Applied Biology, Division of In-Vivo Models and Testing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - Indraja Devidasan
- Department of Pathology, Division of Cellular and Molecular Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - Binchu V Shaji
- Department of Pathology, Division of Cellular and Molecular Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - Sarayu Gopal
- Department of Pathology, Division of Cellular and Molecular Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - Sreekanth Sreekumaran
- Department of Pathology, Division of Cellular and Molecular Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - Abhilash Sp
- Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - Divya M Sivaraman
- Department of Pathology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - Neethu Mohan
- Department of Pathology, Division of Cellular and Molecular Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
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Mensah EA, Daneshtalab N, Tabrizchi R. Effects of vasoactive substances on biomechanics of small resistance arteries of male and female Dahl salt-sensitive rats. Pharmacol Res Perspect 2024; 12:e1180. [PMID: 38421097 PMCID: PMC10902908 DOI: 10.1002/prp2.1180] [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: 11/14/2023] [Revised: 01/23/2024] [Accepted: 02/09/2024] [Indexed: 03/02/2024] Open
Abstract
Changes in vascular biomechanics leading to increase in arterial stiffness play a pivotal role in circulatory dysfunction. Our objectives were to examine sex-specific pharmacological changes related to the biomechanics and any structural modifications in small resistance arteries of Dahl salt-sensitive male and female rats. The composite Young modulus (CYM) was determined using pressure myograph recordings, and immunohistochemistry was used for the evaluation of any structural changes in the third-order mesenteric arteries (n = 6). Animals on high-salt diet developed hypertension with significant elevation in central and peripheral blood pressures and pulse wave velocity compared to those on regular diet. There were no significant differences observed in the CYM between any of the groups (i.e., males and females) in vehicle-treated time-control studies. The presence of verapamil (0.3 μM) significantly reduced CYM in hypertensive males without changes within females compared to vehicle. This effect was abolished by phenylephrine (0.3 μM). BaCl2 (100 μM), ouabain (100 μM), and L-NAME (0.3 μM) combined significantly increased CYM in vessels from in normotensive males and females but not in hypertensive males compared to vehicle. The increase in CYM was abolished in the presence of phenylephrine. Sodium nitroprusside (0.3 μM), in the presence of phenylephrine, significantly reduced CYM in male normotensive versus hypertensive, with no differences within females. Significant differences were observed in immunohistochemical assessment of biomechanical markers of arterial stiffness between males and females. Our findings suggest sex possibly due to pressure differences to be responsible for adaptive changes in biomechanics, and varied pharmacological responses in hypertensive state.
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Affiliation(s)
- Eric A. Mensah
- Division of BioMedical Sciences, Faculty of MedicineMemorial University of NewfoundlandSt. John'sNewfoundlandCanada
| | - Noriko Daneshtalab
- School of PharmacyMemorial University NewfoundlandSt. John'sNewfoundlandCanada
| | - Reza Tabrizchi
- Division of BioMedical Sciences, Faculty of MedicineMemorial University of NewfoundlandSt. John'sNewfoundlandCanada
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3
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Gibson Hughes TA, Dona MSI, Sobey CG, Pinto AR, Drummond GR, Vinh A, Jelinic M. Aortic Cellular Heterogeneity in Health and Disease: Novel Insights Into Aortic Diseases From Single-Cell RNA Transcriptomic Data Sets. Hypertension 2024; 81:738-751. [PMID: 38318714 DOI: 10.1161/hypertensionaha.123.20597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Aortic diseases such as atherosclerosis, aortic aneurysms, and aortic stiffening are significant complications that can have significant impact on end-stage cardiovascular disease. With limited pharmacological therapeutic strategies that target the structural changes in the aorta, surgical intervention remains the only option for some patients with these diseases. Although there have been significant contributions to our understanding of the cellular architecture of the diseased aorta, particularly in the context of atherosclerosis, furthering our insight into the cellular drivers of disease is required. The major cell types of the aorta are well defined; however, the advent of single-cell RNA sequencing provides unrivaled insights into the cellular heterogeneity of each aortic cell type and the inferred biological processes associated with each cell in health and disease. This review discusses previous concepts that have now been enhanced with recent advances made by single-cell RNA sequencing with a focus on aortic cellular heterogeneity.
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Affiliation(s)
- Tayla A Gibson Hughes
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia (T.A.G.H., C.G.S., A.R.P., G.R.D., A.V., M.J.)
| | - Malathi S I Dona
- Baker Heart and Diabetes Research Institute, Melbourne, Victoria, Australia (M.S.I.D., A.R.P.)
| | - Christopher G Sobey
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia (T.A.G.H., C.G.S., A.R.P., G.R.D., A.V., M.J.)
| | - Alexander R Pinto
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia (T.A.G.H., C.G.S., A.R.P., G.R.D., A.V., M.J.)
- Baker Heart and Diabetes Research Institute, Melbourne, Victoria, Australia (M.S.I.D., A.R.P.)
| | - Grant R Drummond
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia (T.A.G.H., C.G.S., A.R.P., G.R.D., A.V., M.J.)
| | - Antony Vinh
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia (T.A.G.H., C.G.S., A.R.P., G.R.D., A.V., M.J.)
| | - Maria Jelinic
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia (T.A.G.H., C.G.S., A.R.P., G.R.D., A.V., M.J.)
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Krajnik A, Nimmer E, Brazzo JA, Biber JC, Drewes R, Tumenbayar BI, Sullivan A, Pham K, Krug A, Heo Y, Kolega J, Heo SJ, Lee K, Weil BR, Kim DH, Gupte SA, Bae Y. Survivin regulates intracellular stiffness and extracellular matrix production in vascular smooth muscle cells. APL Bioeng 2023; 7:046104. [PMID: 37868708 PMCID: PMC10590228 DOI: 10.1063/5.0157549] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 10/05/2023] [Indexed: 10/24/2023] Open
Abstract
Vascular dysfunction is a common cause of cardiovascular diseases characterized by the narrowing and stiffening of arteries, such as atherosclerosis, restenosis, and hypertension. Arterial narrowing results from the aberrant proliferation of vascular smooth muscle cells (VSMCs) and their increased synthesis and deposition of extracellular matrix (ECM) proteins. These, in turn, are modulated by arterial stiffness, but the mechanism for this is not fully understood. We found that survivin is an important regulator of stiffness-mediated ECM synthesis and intracellular stiffness in VSMCs. Whole-transcriptome analysis and cell culture experiments showed that survivin expression is upregulated in injured femoral arteries in mice and in human VSMCs cultured on stiff fibronectin-coated hydrogels. Suppressed expression of survivin in human VSMCs significantly decreased the stiffness-mediated expression of ECM components related to arterial stiffening, such as collagen-I, fibronectin, and lysyl oxidase. By contrast, expression of these ECM proteins was rescued by ectopic expression of survivin in human VSMCs cultured on soft hydrogels. Interestingly, atomic force microscopy analysis showed that suppressed or ectopic expression of survivin decreases or increases intracellular stiffness, respectively. Furthermore, we observed that inhibiting Rac and Rho reduces survivin expression, elucidating a mechanical pathway connecting intracellular tension, mediated by Rac and Rho, to survivin induction. Finally, we found that survivin inhibition decreases FAK phosphorylation, indicating that survivin-dependent intracellular tension feeds back to maintain signaling through FAK. These findings suggest a novel mechanism by which survivin potentially modulates arterial stiffness.
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Affiliation(s)
- Amanda Krajnik
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Erik Nimmer
- Department of Biomedical Engineering, School of Engineering and Applied Sciences, University at Buffalo, Buffalo, New York 14260, USA
| | - Joseph A. Brazzo
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - John C. Biber
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Rhonda Drewes
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Bat-Ider Tumenbayar
- Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Andra Sullivan
- Department of Biomedical Engineering, School of Engineering and Applied Sciences, University at Buffalo, Buffalo, New York 14260, USA
| | - Khanh Pham
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Alanna Krug
- Department of Biomedical Engineering, School of Engineering and Applied Sciences, University at Buffalo, Buffalo, New York 14260, USA
| | | | - John Kolega
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Su-Jin Heo
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | | | - Brian R. Weil
- Department of Physiology and Biophysics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Deok-Ho Kim
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21205, USA
| | - Sachin A. Gupte
- Department of Pharmacology, New York Medical College, Valhalla, New York 10595, USA
| | - Yongho Bae
- Author to whom correspondence should be addressed:
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Ruskovska T, Konic-Ristic A, Mazur A, Milenkovic D. Molecular mechanisms underlying hypertensive effect of fructose and the preventive properties of inulin - Global transcriptomic analysis in rat aorta. Nutr Metab Cardiovasc Dis 2023; 33:441-456. [PMID: 36604264 DOI: 10.1016/j.numecd.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/17/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND AND AIMS Excessive intake of fructose is a significant contributor in the development of hypertension and pathogenesis of cardiometabolic diseases. We previously showed that dietary inulin can prevent fructose-induced hypertension in rats. Nevertheless, molecular mechanisms of both fructose and inulin in aorta remain unknown. The aim of this study was to identify global transcriptomic changes in aorta in rats on fructose-based diet or partial substitution of dietary fructose with inulin. METHODS AND RESULTS At the end of study periods, aortas were isolated, RNA extracted, and transcriptomics performed using microarrays followed by in-dept bioinformatic analyses. We observed that fructose-based diet affected the expression of over 1700 genes involved in the regulation of vascular functions, cell signaling, and cellular metabolism. Partial substitution of dietary fructose with inulin affected the expression of over 1300 genes regulating endothelial and vascular functions, including relaxin signaling pathway, immune/inflammatory response, or cellular metabolism. Bioinformatic analyses revealed transcription factors, such as Junb or Nr4a2, and miRNAs, such as miR-206, miR-137 or miR-375, as potential transcriptional and post-transcriptional regulators of identified differentially expressed genes. Genes identified following both diets are associated with development of cardiovascular diseases, hypertension, immune system diseases and metabolic diseases. Moreover, a negative correlation between the expression profiles obtained by fructose-based diet and that by partial substitution of dietary fructose with inulin was observed. CONCLUSION Our study showed that fructose can significantly impact global transcriptomic profile in aorta, changes that can be counteracted by inulin and which present relevant molecular mechanisms underlying its anti-hypertensive property.
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Affiliation(s)
- Tatjana Ruskovska
- Faculty of Medical Sciences, Goce Delcev University, 2000 Stip, North Macedonia
| | | | - Andrzej Mazur
- Université Clermont Auvergne, INRAE, UNH, Clermont-Ferrand, F-63000, France
| | - Dragan Milenkovic
- Department of Nutrition, University of California, Davis, Davis, CA, USA.
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6
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Ma B, Melton E, Wiener R, Zhou N, Wu W, Lai L, Wang C, Costa KD, Qiu H. Age and Blood Pressure Contribute to Aortic Cell and Tissue Stiffness Through Distinct Mechanisms. Hypertension 2022; 79:1777-1788. [PMID: 35766034 PMCID: PMC9308762 DOI: 10.1161/hypertensionaha.121.18950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Aortic stiffening is strongly associated with both aging and hypertension, but the underlying mechanisms remain unclear. We hypothesized that aging-induced aortic stiffness is mediated by a mechanism differing from hypertension. METHODS We conducted comprehensive in vivo and in vitro experiments using multiple rat models to dissect the different mechanisms of aortic stiffening mediated by aging and hypertension. RESULTS A time-course study in spontaneously hypertensive rats (SHR) and Wistar-Kyoto (WKY) normotensive rats showed more pronounced aging-associated aortic stiffening in SHR versus WKY. Angiotensin II-induced hypertension was associated with more significant aortic stiffening in older versus young WKY rats. Hypertension aggravated aging effects on aortic wall thickness and extracellular matrix content, indicating combinational effects of aging and hypertension on aortic stiffening. Intrinsic stiffness of isolated aortic vascular smooth muscle cells (VSMCs) increased with age in WKY rats, although no significant difference between older SHR and older WKY VSMCs was observed in 2-dimensional culture, reconstituted 3-dimensional tissues were stiffer for older SHR versus older WKY. A selective inhibitor that reduced hypertension-mediated aortic stiffening did not decrease age-related stiffening in aortic VSMCs and aortic wall. Integrin β1 and SM22 (smooth muscle-specific SM22 protein) expression were negligibly changed in WKY VSMCs during aging but were markedly increased by hypertension in older versus young WKY VSMCs. A notable shift of filamin isoforms from B to A was detected in older WKY VSMCs. CONCLUSIONS Our results indicate distinct mechanisms mediating aging-associated aortic VSMC and vessel stiffness, providing new insights into aortic stiffening and the pathogenesis of hypertension in the elderly.
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Affiliation(s)
- Ben Ma
- Center for Molecular and Translational Medicine, Institute of Biomedical Sciences, Georgia State University, Atlanta, GA (B.M., E.M., W.W., L.L., H.Q.).,Division of Physiology, Department of Basic Sciences (B.M., N.Z., H.Q.), School of Medicine, Loma Linda University, CA
| | - Elaina Melton
- Center for Molecular and Translational Medicine, Institute of Biomedical Sciences, Georgia State University, Atlanta, GA (B.M., E.M., W.W., L.L., H.Q.)
| | - Robert Wiener
- Department of Medicine (Cardiology), Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY (R.W., K.D.C.)
| | - Ning Zhou
- Division of Physiology, Department of Basic Sciences (B.M., N.Z., H.Q.), School of Medicine, Loma Linda University, CA
| | - Wenqian Wu
- Center for Molecular and Translational Medicine, Institute of Biomedical Sciences, Georgia State University, Atlanta, GA (B.M., E.M., W.W., L.L., H.Q.)
| | - Lo Lai
- Center for Molecular and Translational Medicine, Institute of Biomedical Sciences, Georgia State University, Atlanta, GA (B.M., E.M., W.W., L.L., H.Q.)
| | - Charles Wang
- Department of Basic Sciences & Center for Genomics (C.W.), School of Medicine, Loma Linda University, CA
| | - Kevin D Costa
- Department of Medicine (Cardiology), Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY (R.W., K.D.C.)
| | - Hongyu Qiu
- Center for Molecular and Translational Medicine, Institute of Biomedical Sciences, Georgia State University, Atlanta, GA (B.M., E.M., W.W., L.L., H.Q.).,Division of Physiology, Department of Basic Sciences (B.M., N.Z., H.Q.), School of Medicine, Loma Linda University, CA
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7
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Deshpande A, Shetty PMV, Frey N, Rangrez AY. SRF: a seriously responsible factor in cardiac development and disease. J Biomed Sci 2022; 29:38. [PMID: 35681202 PMCID: PMC9185982 DOI: 10.1186/s12929-022-00820-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 05/27/2022] [Indexed: 11/10/2022] Open
Abstract
The molecular mechanisms that regulate embryogenesis and cardiac development are calibrated by multiple signal transduction pathways within or between different cell lineages via autocrine or paracrine mechanisms of action. The heart is the first functional organ to form during development, which highlights the importance of this organ in later stages of growth. Knowledge of the regulatory mechanisms underlying cardiac development and adult cardiac homeostasis paves the way for discovering therapeutic possibilities for cardiac disease treatment. Serum response factor (SRF) is a major transcription factor that controls both embryonic and adult cardiac development. SRF expression is needed through the duration of development, from the first mesodermal cell in a developing embryo to the last cell damaged by infarction in the myocardium. Precise regulation of SRF expression is critical for mesoderm formation and cardiac crescent formation in the embryo, and altered SRF levels lead to cardiomyopathies in the adult heart, suggesting the vital role played by SRF in cardiac development and disease. This review provides a detailed overview of SRF and its partners in their various functions and discusses the future scope and possible therapeutic potential of SRF in the cardiovascular system.
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Affiliation(s)
- Anushka Deshpande
- Department of Internal Medicine III, Cardiology and Angiology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany.,Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner site Hamburg/Kiel/Lübeck, Kiel, Germany
| | - Prithviraj Manohar Vijaya Shetty
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Norbert Frey
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Ashraf Yusuf Rangrez
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany. .,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany.
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Mammoto A, Matus K, Mammoto T. Extracellular Matrix in Aging Aorta. Front Cell Dev Biol 2022; 10:822561. [PMID: 35265616 PMCID: PMC8898904 DOI: 10.3389/fcell.2022.822561] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/07/2022] [Indexed: 12/11/2022] Open
Abstract
The aging population is booming all over the world and arterial aging causes various age-associated pathologies such as cardiovascular diseases (CVDs). The aorta is the largest elastic artery, and transforms pulsatile flow generated by the left ventricle into steady flow to maintain circulation in distal tissues and organs. Age-associated structural and functional changes in the aortic wall such as dilation, tortuousness, stiffening and losing elasticity hamper stable peripheral circulation, lead to tissue and organ dysfunctions in aged people. The extracellular matrix (ECM) is a three-dimensional network of macromolecules produced by resident cells. The composition and organization of key ECM components determine the structure-function relationships of the aorta and therefore maintaining their homeostasis is critical for a healthy performance. Age-associated remodeling of the ECM structural components, including fragmentation of elastic fibers and excessive deposition and crosslinking of collagens, is a hallmark of aging and leads to functional stiffening of the aorta. In this mini review, we discuss age-associated alterations of the ECM in the aortic wall and shed light on how understanding the mechanisms of aortic aging can lead to the development of efficient strategy for aortic pathologies and CVDs.
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Affiliation(s)
- Akiko Mammoto
- Department of Pediatrics, Milwaukee, WI, United States
- Department of Cell Biology, Neurobiology and Anatomy, Milwaukee, WI, United States
- *Correspondence: Akiko Mammoto, ; Tadanori Mammoto,
| | - Kienna Matus
- Department of Pediatrics, Milwaukee, WI, United States
| | - Tadanori Mammoto
- Department of Pediatrics, Milwaukee, WI, United States
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, United States
- *Correspondence: Akiko Mammoto, ; Tadanori Mammoto,
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9
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Liu Y, Zhang Y, Tan Z, Wang J, Hu Y, Sun J, Bao M, Huang P, Ge M, Chai YJ, Zheng C. Lysyl oxidase promotes anaplastic thyroid carcinoma cell proliferation and metastasis mediated via BMP1. Gland Surg 2022; 11:245-257. [PMID: 35242686 PMCID: PMC8825512 DOI: 10.21037/gs-21-908] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/14/2022] [Indexed: 12/01/2023]
Abstract
BACKGROUND Anaplastic thyroid carcinoma (ATC) is an extremely aggressive solid tumor with no effective treatment at present. Because of the rapid growth and aggressiveness, nearly all patients die within six months after developing ATC. Hence, more research regarding novel therapeutic targets for ATC is urgently needed. METHODS Single-cell RNA sequencing data and microarray data of ATC were retrieved from the Gene Expression Omnibus (GEO) database. Cell clustering was performed using the Seurat package. Then, differential expression and functional enrichment analyses were performed. Gene set enrichment analysis (GSEA) was further used to investigate the functional enrichment of lysyl oxidase (LOX) and bone morphogenetic protein-1 (BMP1). The expression levels of LOX and BMP1 were measured using quantitative real-time PCR and Western blot. LOX and BMP1 were knocked down using si-RNAs. Cell proliferation was evaluated by the CCK-8 and clone formation assays. Cell migration and invasion were assessed by the wound healing assay and Transwell assay, respectively. RESULTS LOX was upregulated at the single-cell level, as well as in ATC tissues and cell lines. LOX knockdown significantly inhibited ATC cell proliferation. Furthermore, the migration and invasion of ATC cells were remarkably inhibited after LOX inhibition. In addition, BMP1 regulated LOX expression in 8505C cells, while BMP1 overexpression restored the LOX activity blocked by the LOX inhibitor BAPN. BMP1 could also induce the cell proliferation and metastasis of ATC. CONCLUSIONS LOX/BMP1 mediates the malignant progression of ATC, highlighting the potential application of LOX/BMP1 in the treatment of ATC. This study provides new insights for efficient therapeutic agents based on the LOX/BMP1 axis.
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Affiliation(s)
- Yujia Liu
- Clinical Pharmacy Center, Department of Pharmacy, Zhejiang Provincial People’s Hospital; Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Yiwen Zhang
- Clinical Pharmacy Center, Department of Pharmacy, Zhejiang Provincial People’s Hospital; Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, China
| | - Zhuo Tan
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, China
- Department of Head and Neck & Thyroid Surgery, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
| | - Jiafeng Wang
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, China
- Department of Head and Neck & Thyroid Surgery, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
| | - Ying Hu
- Clinical Pharmacy Center, Department of Pharmacy, Zhejiang Provincial People’s Hospital; Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Jiao Sun
- Department of Pharmacy, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Meihua Bao
- Academician Workstation, School of Stomatology, Changsha Medical University, Changsha, China
| | - Ping Huang
- Clinical Pharmacy Center, Department of Pharmacy, Zhejiang Provincial People’s Hospital; Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, China
| | - Minghua Ge
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, China
- Department of Head and Neck & Thyroid Surgery, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
| | - Young Jun Chai
- Department of Surgery, Seoul National University College of Medicine, Seoul Metropolitan Government, Seoul National University Boramae Medical Center, Transdisciplinary Department of Medicine & Advanced Technology, Seoul National University Hospital, Seoul, Korea
| | - Chuanming Zheng
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, China
- Department of Head and Neck & Thyroid Surgery, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
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10
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Sun X, Zhou N, Ma B, Wu W, Stoll S, Lai L, Qin G, Qiu H. Functional Inhibition of Valosin-Containing Protein Induces Cardiac Dilation and Dysfunction in a New Dominant-Negative Transgenic Mouse Model. Cells 2021; 10:2891. [PMID: 34831118 PMCID: PMC8616236 DOI: 10.3390/cells10112891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 12/20/2022] Open
Abstract
Valosin-containing protein (VCP) was found to play a vital protective role against cardiac stresses. Genetic mutations of VCP are associated with human dilated cardiomyopathy. However, the essential role of VCP in the heart during the physiological condition remains unknown since the VCP knockout in mice is embryonically lethal. We generated a cardiac-specific dominant-negative VCP transgenic (DN-VCP TG) mouse to determine the effects of impaired VCP activity on the heart. Using echocardiography, we showed that cardiac-specific overexpression of DN-VCP induced a remarkable cardiac dilation and progressively declined cardiac function during the aging transition. Mechanistically, DN-VCP did not affect the endogenous VCP (EN-VCP) expression but significantly reduced cardiac ATPase activity in the DN-VCP TG mouse hearts, indicating a functional inhibition. DN-VCP significantly impaired the aging-related cytoplasmic/nuclear shuffling of EN-VCP and its co-factors in the heart tissues and interrupted the balance of the VCP-cofactors interaction between the activating co-factors, ubiquitin fusion degradation protein 1 (UFD-1)/nuclear protein localization protein 4 (NPL-4) complex, and its inhibiting co-factor P47, leading to the binding preference with the inhibitory co-factor, resulting in functional repression of VCP. This DN-VCP TG mouse provides a unique functional-inactivation model for investigating VCP in the heart in physiological and pathological conditions.
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Affiliation(s)
- Xiaonan Sun
- Center for Molecular and Translational Medicine, Institute of Biomedical Science, Georgia State University, Atlanta, GA 30303, USA; (X.S.); (B.M.); (W.W.); (L.L.)
| | - Ning Zhou
- Division of Physiology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92318, USA; (N.Z.); (S.S.)
| | - Ben Ma
- Center for Molecular and Translational Medicine, Institute of Biomedical Science, Georgia State University, Atlanta, GA 30303, USA; (X.S.); (B.M.); (W.W.); (L.L.)
| | - Wenqian Wu
- Center for Molecular and Translational Medicine, Institute of Biomedical Science, Georgia State University, Atlanta, GA 30303, USA; (X.S.); (B.M.); (W.W.); (L.L.)
| | - Shaunrick Stoll
- Division of Physiology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92318, USA; (N.Z.); (S.S.)
| | - Lo Lai
- Center for Molecular and Translational Medicine, Institute of Biomedical Science, Georgia State University, Atlanta, GA 30303, USA; (X.S.); (B.M.); (W.W.); (L.L.)
| | - Gangjian Qin
- Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Hongyu Qiu
- Center for Molecular and Translational Medicine, Institute of Biomedical Science, Georgia State University, Atlanta, GA 30303, USA; (X.S.); (B.M.); (W.W.); (L.L.)
- Division of Physiology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92318, USA; (N.Z.); (S.S.)
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11
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Hsp22 Deficiency Induces Age-Dependent Cardiac Dilation and Dysfunction by Impairing Autophagy, Metabolism, and Oxidative Response. Antioxidants (Basel) 2021; 10:antiox10101550. [PMID: 34679684 PMCID: PMC8533440 DOI: 10.3390/antiox10101550] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/19/2021] [Accepted: 09/27/2021] [Indexed: 02/04/2023] Open
Abstract
Heat shock protein 22 (Hsp22) is a small heat shock protein predominantly expressed in skeletal and cardiac muscle. Previous studies indicate that Hsp22 plays a vital role in protecting the heart against cardiac stress. However, the essential role of Hsp22 in the heart under physiological conditions remains largely unknown. In this study, we used an Hsp22 knockout (KO) mouse model to determine whether loss of Hsp22 impairs cardiac growth and function with increasing age under physiological conditions. Cardiac structural and functional alterations at baseline were measured using echocardiography and invasive catheterization in Hsp22 KO mice during aging transition compared to their age-matched wild-type (WT) littermates. Our results showed that Hsp22 deletion induced progressive cardiac dilation along with declined function during the aging transition. Mechanistically, the loss of Hsp22 impaired BCL-2-associated athanogene 3 (BAG3) expression and its associated cardiac autophagy, undermined cardiac energy metabolism homeostasis and increased oxidative damage. This study showed that Hsp22 played an essential role in the non-stressed heart during the early stage of aging, which may bring new insight into understanding the pathogenesis of age-related dilated cardiomyopathy.
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12
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Jama HA, Muralitharan RR, Xu C, O'Donnell JA, Bertagnolli M, Broughton BRS, Head GA, Marques FZ. Rodent models of hypertension. Br J Pharmacol 2021; 179:918-937. [PMID: 34363610 DOI: 10.1111/bph.15650] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 01/03/2023] Open
Abstract
Elevated blood pressure (BP), or hypertension, is the main risk factor for cardiovascular disease. As a multifactorial and systemic disease that involves multiple organs and systems, hypertension remains a challenging disease to study. Models of hypertension are invaluable to support the discovery of the specific genetic, cellular and molecular mechanisms underlying essential hypertension, as well as to test new possible treatments to lower BP. Rodent models have proven to be an invaluable tool for advancing the field. In this review, we discuss the strengths and weaknesses of rodent models of hypertension through a systems approach. We highlight the ways how target organs and systems including the kidneys, vasculature, the sympathetic nervous system (SNS), immune system and the gut microbiota influence BP in each rodent model. We also discuss often overlooked hypertensive conditions such as pulmonary hypertension and hypertensive-pregnancy disorders, providing an important resource for researchers.
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Affiliation(s)
- Hamdi A Jama
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia.,Heart Failure Research Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Rikeish R Muralitharan
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia.,Institute for Medical Research, Ministry of Health Malaysia, Kuala Lumpur, Malaysia
| | - Chudan Xu
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia
| | - Joanne A O'Donnell
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia
| | - Mariane Bertagnolli
- Laboratory of Maternal-child Health, Hospital Sacre-Coeur Research Center, CIUSSS Nord-de-l'Île-de-Montréal, Montreal, Canada.,School of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Canada
| | - Bradley R S Broughton
- Department of Pharmacology, Biomedicine Discovery Institute, Faculty of Medicine Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - Geoffrey A Head
- Department of Pharmacology, Biomedicine Discovery Institute, Faculty of Medicine Nursing and Health Sciences, Monash University, Melbourne, Australia.,Neuropharmacology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Francine Z Marques
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia.,Heart Failure Research Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia
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13
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Li F, Yan K, Wu L, Zheng Z, Du Y, Liu Z, Zhao L, Li W, Sheng Y, Ren L, Tang C, Zhu L. Single-cell RNA-seq reveals cellular heterogeneity of mouse carotid artery under disturbed flow. Cell Death Discov 2021; 7:180. [PMID: 34282126 PMCID: PMC8290019 DOI: 10.1038/s41420-021-00567-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/26/2021] [Accepted: 05/13/2021] [Indexed: 12/28/2022] Open
Abstract
Disturbed blood flow (d-flow) has been known to induce changes of the cells in the arterial wall, increasing the risk of atherosclerosis. However, the heterogeneity of the vascular cell populations under d-flow remains less understood. To generate d-flow in vivo, partial carotid artery ligation (PCL) was performed. Seven days after ligation, single-cell RNA sequencing of nine left carotid arteries (LCA) from the PCL group (10,262 cells) or control group (14,580 cells) was applied and a single-cell atlas of gene expression was constructed. The integrated analysis identified 15 distinct carotid cell clusters, including 10 d-flow-relevant subpopulations. Among endothelial cells, at least four subpopulations were identified, including Klk8hi ECs, Lrp1hi ECs, Dkk2hi ECs, and Cd36hi ECs. Analysis of GSVA and single-cell trajectories indicated that the previously undescribed Dkk2hi ECs subpopulation was mechanosensitive and potentially transformed from Klk8hi ECs under d-flow. D-flow-induced Spp1hi VSMCs subpopulation that appeared to be endowed with osteoblast differentiation, suggesting a role in arterial stiffness. Among the infiltrating cell subpopulations, Trem2hi Mφ, Birc5hi Mφ, DCs, CD4+ T cells, CXCR6+ T cells, NK cells, and granulocytes were identified under d-flow. Of note, the novel Birc5hi Mφ was identified as a potential contributor to the accumulation of macrophages in atherosclerosis. Finally, Dkk2hi ECs, and Cd36hi ECs were also found in the proatherosclerotic area of the aorta where the d-flow occurs. In conclusion, we presented a comprehensive single-cell atlas of all cells in the carotid artery under d-flow, identified previously unrecognized cell subpopulations and their gene expression signatures, and suggested their specialized functions.
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Affiliation(s)
- Fengchan Li
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Kunmin Yan
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Lili Wu
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Zhong Zheng
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Yun Du
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Ziting Liu
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Luyao Zhao
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Wei Li
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Yulan Sheng
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Lijie Ren
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China
| | - Chaojun Tang
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China.
- Collaborative Innovation Center of Hematology, Suzhou, Jiangsu, China.
- Suzhou Key Laboratory of Thrombosis and Vascular Diseases, Suzhou, Jiangsu, China.
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
| | - Li Zhu
- Cyrus Tang Hematology Center, Suzhou, Jiangsu, China.
- Collaborative Innovation Center of Hematology, Suzhou, Jiangsu, China.
- Suzhou Key Laboratory of Thrombosis and Vascular Diseases, Suzhou, Jiangsu, China.
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
- State Key Laboratory of Radiation Medicine and Protection Soochow University, Suzhou, Jiangsu, China.
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14
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Association of central arterial stiffness with hippocampal blood flow and N-acetyl aspartate concentration in hypertensive adult Dahl salt sensitive rats. J Hypertens 2021; 39:2113-2121. [PMID: 34001812 PMCID: PMC8452328 DOI: 10.1097/hjh.0000000000002899] [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] [Indexed: 11/26/2022]
Abstract
BACKGROUND Central arterial stiffness (CAS) is associated with elevated arterial blood pressure (BP) and is likely associated with stiffening of cerebral artery walls, with attendant cerebral hypoperfusion, neuronal density loss and cognitive decline. Dahl salt-sensitive (Dahl-S) rats exhibit age-associated hypertension and memory loss, even on a normal salt intake. METHOD We sought to explore whether central arterial pulse wave velocity (PWV), a marker of CAS, is associated with hippocampal cerebral blood flow (CBF) and neuronal density in hypertensive Dahl-S rats. We measured systolic BP (by tail-cuff plethysmography), aortic PWV (by echocardiography) and CBF and N-acetyl aspartate (NAA) (by magnetic resonance imaging) in 6 month-old male Dahl-S rats (n = 12). RESULTS Greater PWV was significantly associated with lower CBF and lower NAA concentration in the hippocampus, supporting a role of CAS in cerebrovascular dysfunction and decline in cognitive performance with aging. CONCLUSION These findings implicate increased CAS in cerebral hypoperfusion and loss of neuronal density and function in the Dahl-S model of age-associated cardiovascular dysfunction.
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15
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Abstract
Significance: The vascular extracellular matrix (ECM) not only provides mechanical stability but also manipulates vascular cell behaviors, which are crucial for vascular function and homeostasis. ECM remodeling, which alters vascular wall mechanical properties and exposes vascular cells to bioactive molecules, is involved in the development and progression of hypertension. Recent Advances: This brief review summarized the dynamic changes in ECM components and their modification and degradation during hypertension and after antihypertensive treatment. We also discussed how alterations in the ECM amount, assembly, mechanical properties, and degradation fragment generation provide input into the pathological process of hypertension. Critical Issues: Although the relevance between ECM remodeling and hypertension has been recognized, the underlying mechanism by which ECM remodeling initiates the development of hypertension remains unclear. Therefore, the modulation of ECM remodeling on arterial stiffness and hypertension in genetically modified rodent models is summarized in this review. The circulating biomarkers based on ECM metabolism and therapeutic strategies targeting ECM disorders in hypertension are also introduced. Future Directions: Further research will provide more comprehensive understanding of ECM remodeling in hypertension by the application of matridomic and degradomic approaches. The better understanding of mechanisms underlying vascular ECM remodeling may provide novel potential therapeutic strategies for preventing and treating hypertension. Antioxid. Redox Signal. 34, 765-783.
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Affiliation(s)
- Zeyu Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Ze Gong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Zhiqing Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Li Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
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16
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The Progress of Advanced Ultrasonography in Assessing Aortic Stiffness and the Application Discrepancy between Humans and Rodents. Diagnostics (Basel) 2021; 11:diagnostics11030454. [PMID: 33800855 PMCID: PMC8001300 DOI: 10.3390/diagnostics11030454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 12/26/2022] Open
Abstract
Aortic stiffening is a fundamental pathological alteration of atherosclerosis and other various aging-associated vascular diseases, and it is also an independent risk factor of cardiovascular morbidity and mortality. Ultrasonography is a critical non-invasive method widely used in assessing aortic structure, function, and hemodynamics in humans, playing a crucial role in predicting the pathogenesis and adverse outcomes of vascular diseases. However, its applications in rodent models remain relatively limited, hindering the progress of the research. Here, we summarized the progress of the advanced ultrasonographic techniques applied in evaluating aortic stiffness. With multiple illustrative images, we mainly characterized various ultrasound techniques in assessing aortic stiffness based on the alterations of aortic structure, hemodynamics, and tissue motion. We also discussed the discrepancy of their applications in humans and rodents and explored the potential optimized strategies in the experimental research with animal models. This updated information would help to better understand the nature of ultrasound techniques and provide a valuable prospect for their applications in assessing aortic stiffness in basic science research, particularly with small animals.
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17
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Tardelli LP, Duchatsch F, Herrera NA, Vicentini CA, Okoshi K, Amaral SL. Differential effects of dexamethasone on arterial stiffness, myocardial remodeling and blood pressure between normotensive and spontaneously hypertensive rats. J Appl Toxicol 2021; 41:1673-1686. [PMID: 33629383 DOI: 10.1002/jat.4155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/01/2021] [Accepted: 02/10/2021] [Indexed: 12/11/2022]
Abstract
Dexamethasone (DEX)-induced hypertension is observed in normotensive rats, but little is known about the effects of DEX on spontaneously hypertensive animals (SHR). This study aimed to evaluate the effects of DEX on hemodynamics, cardiac hypertrophy and arterial stiffness in normotensive and hypertensive rats. Wistar rats and SHR were treated with DEX (50 μg/kg s.c., 14 d) or saline. Pulse wave velocity (PWV), echocardiographic parameters, blood pressure (BP), autonomic modulation and histological analyses of heart and thoracic aorta were performed. SHR had higher BP compared with Wistar, associated with autonomic unbalance to the heart. Echocardiographic changes in SHR (vs. Wistar) were suggestive of cardiac remodeling: higher relative wall thickness (RWT, +28%) and left ventricle mass index (LVMI, +26%) and lower left ventricle systolic diameter (LVSD, -19%) and LV diastolic diameter (LVDD, -10%), with slightly systolic dysfunction and preserved diastolic dysfunction. Also, SHR had lower myocardial capillary density and similar collagen deposition area. PWV was higher in SHR due to higher aortic collagen deposition. DEX-treated Wistar rats presented higher BP (~23%) and autonomic unbalance. DEX did not change cardiac structure in Wistar, but PWV (+21%) and aortic collagen deposition area (+21%) were higher compared with control. On the other side, DEX did not change BP or autonomic balance to the heart in SHR, but reduced RWT and LV collagen deposition area (-12% vs. SHRCT ). In conclusion, the results suggest a differential effect of dexamethasone on arterial stiffness, myocardial remodeling and blood pressure between normotensive and spontaneously hypertensive rats.
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Affiliation(s)
- Lidieli P Tardelli
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil
| | - Francine Duchatsch
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil
| | - Naiara A Herrera
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil
| | | | - Katashi Okoshi
- Department of Medical Clinic, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - Sandra L Amaral
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil.,Department of Physical Education, School of Sciences, São Paulo State University (UNESP), Bauru, Brazil
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18
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Sprenkeler EGG, Guenther C, Faisal I, Kuijpers TW, Fagerholm SC. Molecular Mechanisms of Leukocyte Migration and Its Potential Targeting-Lessons Learned From MKL1/SRF-Related Primary Immunodeficiency Diseases. Front Immunol 2021; 12:615477. [PMID: 33692789 PMCID: PMC7938309 DOI: 10.3389/fimmu.2021.615477] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 01/04/2021] [Indexed: 01/22/2023] Open
Abstract
Megakaryoblastic leukemia 1 (MKL1) deficiency is one of the most recently discovered primary immunodeficiencies (PIDs) caused by cytoskeletal abnormalities. These immunological “actinopathies” primarily affect hematopoietic cells, resulting in defects in both the innate immune system (phagocyte defects) and adaptive immune system (T-cell and B-cell defects). MKL1 is a transcriptional coactivator that operates together with serum response factor (SRF) to regulate gene transcription. The MKL/SRF pathway has been originally described to have important functions in actin regulation in cells. Recent results indicate that MKL1 also has very important roles in immune cells, and that MKL1 deficiency results in an immunodeficiency affecting the migration and function of primarily myeloid cells such as neutrophils. Interestingly, several actinopathies are caused by mutations in genes which are recognized MKL(1/2)-dependent SRF-target genes, namely ACTB, WIPF1, WDR1, and MSN. Here we summarize these and related (ARPC1B) actinopathies and their effects on immune cell function, especially focusing on their effects on leukocyte adhesion and migration. Furthermore, we summarize recent therapeutic efforts targeting the MKL/SRF pathway in disease.
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Affiliation(s)
- Evelien G G Sprenkeler
- Department of Blood Cell Research, Sanquin Research, Amsterdam University Medical Center (AUMC), University of Amsterdam, Amsterdam, Netherlands.,Department of Pediatric Immunology, Rheumatology, and Infectious Diseases, Emma Children's Hospital, Amsterdam University Medical Center (AUMC), University of Amsterdam, Amsterdam, Netherlands
| | - Carla Guenther
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Imrul Faisal
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Taco W Kuijpers
- Department of Blood Cell Research, Sanquin Research, Amsterdam University Medical Center (AUMC), University of Amsterdam, Amsterdam, Netherlands.,Department of Pediatric Immunology, Rheumatology, and Infectious Diseases, Emma Children's Hospital, Amsterdam University Medical Center (AUMC), University of Amsterdam, Amsterdam, Netherlands
| | - Susanna C Fagerholm
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
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19
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Sorensen DW, Carreon D, Williams JM, Pearce WJ. Hypoxic modulation of fetal vascular MLCK abundance, localization, and function. Am J Physiol Regul Integr Comp Physiol 2021; 320:R1-R18. [PMID: 33112654 PMCID: PMC7847055 DOI: 10.1152/ajpregu.00212.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/01/2020] [Accepted: 10/13/2020] [Indexed: 12/26/2022]
Abstract
Changes in vascular contractility are among the most important physiological effects of acute and chronic fetal hypoxia. Given the essential role of myosin light-chain kinase (MLCK) in smooth muscle contractility and its heterogeneous distribution, this study explores the hypothesis that subcellular changes in MLCK distribution contribute to hypoxic modulation of fetal carotid artery contractility. Relative to common carotid arteries from normoxic term fetal lambs (FN), carotids from fetal lambs gestated at high altitude (3,802 m) (FH) exhibited depressed contractility without changes in MLCK mRNA or protein abundance. Patterns of confocal colocalization of MLCK with α-actin and 20-kDa regulatory myosin light chain (MLC20) enabled calculation of subcellular MLCK fractions: 1) colocalized with the contractile apparatus, 2) colocalized with α-actin distant from the contractile apparatus, and 3) not colocalized with α-actin. Chronic hypoxia did not affect MLCK abundance in the contractile fraction, despite a concurrent decrease in contractility. Organ culture for 72 h under 1% O2 decreased total MLCK abundance in FN and FH carotid arteries, but decreased the contractile MLCK abundance only in FH carotid arteries. Correspondingly, culture under 1% O2 depressed contractility more in FH than FN carotid arteries. In addition, hypoxia appeared to attenuate ubiquitin-independent proteasomal degradation of MLCK, as reported for other proteins. In aggregate, these results demonstrate that the combination of chronic hypoxia followed by hypoxic culture can induce MLCK translocation among at least three subcellular fractions with possible influences on contractility, indicating that changes in MLCK distribution are a significant component of fetal vascular responses to hypoxia.
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Affiliation(s)
- Dane W Sorensen
- Divisions of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
| | - Desirelys Carreon
- Divisions of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
| | - James M Williams
- Divisions of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
| | - William J Pearce
- Divisions of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
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20
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Abstract
: Hypertension is a worldwide known cause of morbidity and mortality in the elderly and is a major risk factor for cardiovascular complications such as stroke, myocardial infarction, renal complications and heart failure. Although the mechanisms of hypertension remain largely unknown, a recent new concept is that aortic stiffening is a cause of hypertension in middle-aged and older individuals, which highlighted the importance of aortic stiffening in the development of age-related hypertension. Understanding the pathogenesis of aortic stiffness therefore became one of the important approaches to preventing and controlling hypertension. This review discusses the recent progress of the potential causes of aortic stiffening and its implication on the pathogenesis of hypertension, in terms of aging, inflammation, metabolic syndromes, neuroendocrine and the interaction among these causes.
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Affiliation(s)
- John O. ONUH
- Center for Molecular and Translational Medicine, Georgia State University, Atlanta, GA, USA, 30303
| | - Hongyu QIU
- Center for Molecular and Translational Medicine, Georgia State University, Atlanta, GA, USA, 30303
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21
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Rodríguez JE, Ruiz-Hernández A, Hernández-DíazCouder A, Huang F, Hong E, Villafaña S. Chronic diabetes and hypertension impair the in vivo functional response to phenylephrine independent of α 1-adrenoceptor expression. Eur J Pharmacol 2020; 883:173283. [PMID: 32619676 DOI: 10.1016/j.ejphar.2020.173283] [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: 03/26/2020] [Revised: 06/09/2020] [Accepted: 06/15/2020] [Indexed: 10/24/2022]
Abstract
Diabetes and hypertension can coexist and exacerbate each other. In the early stages of diabetes, there is a decreased vascular response of the sympathetic nervous system (SNS), probably due to lower expression of α1-adrenoceptors; however, it is unclear how diabetes in advanced stages changes the functionality of the SNS, especially the expression of α1-adrenoceptors. Thus, the aim of this work was to analyse the functional response to phenylephrine, a selective α1-adrenoceptor agonist, and the expression of α1-adrenoceptors in chronic diabetes and hypertension. Male SHR and WKY rats aged 10-12 weeks were administered either streptozotocin (60 mg/kg i.p.) or a vehicle (control group). Eight weeks after administration, dose-response curves to phenylephrine were generated and the gene and protein expression of α1-adrenoceptor subtypes (α1A-, α1B- and α1D-adrenoceptors) in the heart and aorta were measured. The response to phenylephrine was diminished in hypertensive rats and in normotensive diabetic rats. The coexistence of both diabetes and hypertension produced an even smaller response to phenylephrine than that observed for each condition separately. In the heart and aorta of diabetic rats, no changes in α1A-, α1B- or α1D-adrenoceptor mRNA expression were observed; however, protein expression was increased, mainly for the α1D-adrenoceptor. Hypertension increased mRNA and protein expression of α1-adrenoceptors in a tissue-dependent manner. The coexistence of both diabetes and hypertension produced differences in the regulation of mRNA and protein expression (increase or decrease) in both the heart and aorta. In conclusion, diabetes, hypertension and the coexistence of both pathologies impairs the in vivo response to phenylephrine. However, the differences in α1A-, α1B- and α1D-adrenoceptor expression cannot explain the reduced response to the agonist. This should be further explored in future experiments.
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Affiliation(s)
- Jessica E Rodríguez
- Laboratorio de Farmacognosia, Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Morelos, México; Bioquímica Clínica, Carrera de Químico Farmacéutico Biólogo, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, México
| | - Armando Ruiz-Hernández
- Departamento de Farmacología, Facultad de Medicina, Universidad Autónoma de Baja California, Mexicali, Baja California, México
| | | | - Fengyang Huang
- Departamento de Farmacología y Toxicología, Hospital Infantil de México "Federico Gómez", Ciudad de México, México
| | - Enrique Hong
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados, Ciudad de México, México
| | - Santiago Villafaña
- Laboratorio de Señalización Intracelular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México, México.
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22
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Onuh JO, Qiu H. Serum response factor-cofactor interactions and their implications in disease. FEBS J 2020; 288:3120-3134. [PMID: 32885587 PMCID: PMC7925694 DOI: 10.1111/febs.15544] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/21/2020] [Accepted: 08/21/2020] [Indexed: 12/20/2022]
Abstract
Serum response factor (SRF), a member of the Mcm1, Agamous, Deficiens, and SRF (MADS) box transcription factor, is widely expressed in all cell types and plays a crucial role in the physiological function and development of diseases. SRF regulates its downstream genes by binding to their CArG DNA box by interacting with various cofactors. However, the underlying mechanisms are not fully understood, therefore attracting increasing research attention due to the importance of this topic. This review's objective is to discuss the new progress in the studies of the molecular mechanisms involved in the activation of SRF and its impacts in physiological and pathological conditions. Notably, we summarized the recent studies on the interaction of SRF with its two main types of cofactors belonging to the myocardin families of transcription factors and the members of the ternary complex factors. The knowledge of these mechanisms will create new opportunities for understanding the dynamics of many traits and disease pathogenesis especially, cardiovascular diseases and cancer that could serve as targets for pharmacological control and treatment of these diseases.
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Affiliation(s)
- John Oloche Onuh
- Center for Molecular and Translational Medicine, Institute of Biomedical Science, Georgia State University, Atlanta, GA, USA
| | - Hongyu Qiu
- Center for Molecular and Translational Medicine, Institute of Biomedical Science, Georgia State University, Atlanta, GA, USA
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23
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Okamoto T, Kawamoto E, Usuda H, Tanaka T, Nikai T, Asanuma K, Suzuki K, Shimaoka M, Wada K. Recombinant Human Soluble Thrombomodulin Suppresses Monocyte Adhesion by Reducing Lipopolysaccharide-Induced Endothelial Cellular Stiffening. Cells 2020; 9:cells9081811. [PMID: 32751580 PMCID: PMC7463703 DOI: 10.3390/cells9081811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/21/2020] [Accepted: 07/28/2020] [Indexed: 11/24/2022] Open
Abstract
Endothelial cellular stiffening has been observed not only in inflamed cultured endothelial cells but also in the endothelium of atherosclerotic regions, which is an underlying cause of monocyte adhesion and accumulation. Although recombinant soluble thrombomodulin (rsTM) has been reported to suppress the inflammatory response of endothelial cells, its role in regulating endothelial cellular stiffness remains unclear. The purpose of this study was to investigate the impact of anticoagulant rsTM on lipopolysaccharide (LPS)-induced endothelial cellular stiffening. We show that LPS increases endothelial cellular stiffness by using atomic force microscopy and that rsTM reduces LPS-induced cellular stiffening not only through the attenuation of actin fiber and focal adhesion formation but also via the improvement of gap junction functionality. Moreover, post-administration of rsTM, after LPS stimulation, attenuated LPS-induced cellular stiffening. We also found that endothelial cells regulate leukocyte adhesion in a substrate- and cellular stiffness-dependent manner. Our result show that LPS-induced cellular stiffening enhances monocytic THP-1 cell line adhesion, whereas rsTM suppresses THP-1 cell adhesion to inflamed endothelial cells by reducing cellular stiffness. Endothelial cells increase cellular stiffness in reaction to inflammation, thereby promoting monocyte adhesion. Treatment of rsTM reduced LPS-induced cellular stiffening and suppressed monocyte adhesion in a cellular stiffness-dependent manner.
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Affiliation(s)
- Takayuki Okamoto
- Department of Pharmacology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo-city, Shimane 693-8501, Japan; (H.U.); (T.T.); (K.W.)
- Correspondence: ; Tel.: +81-853-20-2132
| | - Eiji Kawamoto
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-city, Mie 514-8507, Japan; (E.K.); (M.S.)
- Department of Emergency and Disaster Medicine, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-city, Mie 514-8507, Japan
| | - Haruki Usuda
- Department of Pharmacology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo-city, Shimane 693-8501, Japan; (H.U.); (T.T.); (K.W.)
| | - Tetsuya Tanaka
- Department of Pharmacology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo-city, Shimane 693-8501, Japan; (H.U.); (T.T.); (K.W.)
- Department of Human Nutrition, Faculty of Contemporary Life Science, Chugoku Gakuen University, 83 Niwase, Kita-ku, Okayama-city, Okayama 701-0197, Japan
| | - Tetsuro Nikai
- Department of Anesthesiology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo-city, Shimane 693-8501, Japan;
| | - Kunihiro Asanuma
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-city, Mie 514-8507, Japan;
| | - Koji Suzuki
- Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3, Minamitamagaki-cho, Suzuka-city, Mie 513-8679, Japan;
| | - Motomu Shimaoka
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-city, Mie 514-8507, Japan; (E.K.); (M.S.)
| | - Koichiro Wada
- Department of Pharmacology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo-city, Shimane 693-8501, Japan; (H.U.); (T.T.); (K.W.)
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24
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Wang Z, Fu Z, Yang Y, Xing W, Zhang X, Wang J, Li Y, Yuan L, Gao F. A novel methodology for rat aortic pulse wave velocity assessment by Doppler ultrasound: validation against invasive measurements. Am J Physiol Heart Circ Physiol 2019; 317:H1376-H1387. [PMID: 31702970 DOI: 10.1152/ajpheart.00382.2019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
There is still lack of a simple, accurate, and noninvasive method for rat aortic pulse wave velocity (PWV) measurement, especially the transit distance cannot be accurately measured. Thus, we aimed to derive an equation for aortic transit distance as a function of the nose-to-rump length (L) and to test the hypothesis that aortic PWV measured by new equation combined with Doppler ultrasound (the "equation method") may have stronger correlation with invasive measurements than traditional "body surface method." Two-hundred male Sprague-Dawley (SD) rats (age ranged 5-24 wk) were included in protocol 1, and the aortic transit distances were measured postmortem. In protocol 2, heart-femoral PWV and carotid-femoral PWV were measured by equation method (hfPWVE, cfPWVE) and also by traditional body surface method (hfPWVS, cfPWVS) in another 30 young and 28 old rats. These measurements were then validated against invasively measured hfPWVI and cfPWVI from the same animal. Protocol 1 showed that the heart-femoral transit distance could be calculated by 0.6086 × L - 1.6523, and the carotid-femoral transit distance by 0.4614 × L + 1.8335. In protocol 2, in young rats, the Pearson r between hfPWVE, cfPWVE, hfPWVS, and cfPWVS and their corresponding invasive measurement were 0.8962, 0.8509, 0.8387, and 0.7828, respectively (all P < 0.0001). In the old group, the results were 0.8718, 0.7999, 0.8330, and 0.7112, respectively (all P < 0.0001). The hfPWVE and cfPWVE showed better agreement with hfPWVI and cfPWVI and lower intra- and interobserver variability compared with hfPWVS and cfPWVS in both groups. These findings demonstrate that this novel methodology provides a simple and reliable method for rat noninvasive aortic PWV measurement.NEW & NOTEWORTHY First, when measuring aortic PWV in SD rat models, the heart-femoral transit distance can be estimated by 0.6086 × L - 1.6523, and the carotid-femoral distance transit distance can be estimated by 0.4614 × L + 1.8335, where L (in mm) is nose-to-rump length. Second, this novel methodology for aortic PWV measurement was validated with a closer correlation with the invasive measurements than traditional approach in young and old rats. Third, this study provides a simple and reliable method for rat noninvasive aortic PWV measurement.
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Affiliation(s)
- Zhen Wang
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, China
| | - Zihao Fu
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, China
| | - Yong Yang
- Department of Ultrasound Medicine, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Wenjuan Xing
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, China
| | - Xing Zhang
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, China
| | - Jiaping Wang
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing, China
| | - Yongzhi Li
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing, China
| | - Lijun Yuan
- Department of Ultrasound Medicine, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Feng Gao
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, China
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25
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Sharma N, Dev R, Ruiz-Rosado JDD, Partida-Sanchez S, Guerau-de-Arellano M, Dhakal P, Kuivaniemi H, Hans CP. Pharmacological inhibition of Notch signaling regresses pre-established abdominal aortic aneurysm. Sci Rep 2019; 9:13458. [PMID: 31530833 PMCID: PMC6748927 DOI: 10.1038/s41598-019-49682-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 08/27/2019] [Indexed: 12/22/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is characterized by transmural infiltration of myeloid cells at the vascular injury site. Previously, we reported preventive effects of Notch deficiency on the development of AAA by reduction of infiltrating myeloid cells. In this study, we examined if Notch inhibition attenuates the progression of pre-established AAA and potential implications. Pharmacological Notch inhibitor (N-[N-(3,5-difluorophenacetyl)-L-alanyl]-(S)-phenylglycine t-butyl ester; DAPT) was administered subcutaneously three times a week starting at day 28 of angiotensin II (AngII) infusion. Progressive increase in pulse wave velocity (PWV), maximal intra-luminal diameter (MILD) and maximal external aortic diameter (MEAD) were observed at day 56 of the AngII. DAPT prevented such increase in MILD, PWV and MEAD (P < 0.01). Histologically, the aortae of DAPT-treated Apoe-/- mice had significant reduction in inflammatory response and elastin fragmentation. Naked collagen microfibrils and weaker banded structure observed in the aortae of Apoe-/- mice in response to AngII, were substantially diminished by DAPT. A significant decrease in the proteolytic activity in the aneurysmal tissues and vascular smooth muscle cells (vSMCs) was observed with DAPT (P < 0.01). In human and mouse AAA tissues, increased immunoreactivity of activated Notch signaling correlated strongly with CD38 expression (R2 = 0.61). Collectively, we propose inhibition of Notch signaling as a potential therapeutic target for AAA progression.
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MESH Headings
- ADP-ribosyl Cyclase 1/metabolism
- Angiotensin II/adverse effects
- Animals
- Aorta/drug effects
- Aorta/metabolism
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/diagnostic imaging
- Aortic Aneurysm, Abdominal/drug therapy
- Aortic Aneurysm, Abdominal/metabolism
- Cells, Cultured
- Collagen/metabolism
- Cytokines/metabolism
- Dipeptides/pharmacology
- Disease Models, Animal
- Extracellular Matrix/drug effects
- Extracellular Matrix/metabolism
- Gene Expression Regulation/drug effects
- Humans
- Male
- Membrane Glycoproteins/metabolism
- Mice
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Receptors, Notch/antagonists & inhibitors
- Receptors, Notch/metabolism
- Signal Transduction/drug effects
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Affiliation(s)
- Neekun Sharma
- Department of Cardiovascular Medicine, University of Missouri, Columbia, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, USA
| | - Rishabh Dev
- Department of Cardiovascular Medicine, University of Missouri, Columbia, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, USA
| | - Juan de Dios Ruiz-Rosado
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Santiago Partida-Sanchez
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Mireia Guerau-de-Arellano
- School of Health and Rehabilitation Sciences, Medical Laboratory Science Division, The Ohio State University, Columbus, OH, USA
| | - Pramod Dhakal
- Animal Science Research Center, University of Missouri, Columbia, USA
| | - Helena Kuivaniemi
- Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Stellenbosch University, Cape Town, South Africa
| | - Chetan P Hans
- Department of Cardiovascular Medicine, University of Missouri, Columbia, USA.
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, USA.
- Medical Pharmacology and Physiology, University of Missouri, Columbia, USA.
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26
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Zhu Y, Qu J, He L, Zhang F, Zhou Z, Yang S, Zhou Y. Calcium in Vascular Smooth Muscle Cell Elasticity and Adhesion: Novel Insights Into the Mechanism of Action. Front Physiol 2019; 10:852. [PMID: 31440163 PMCID: PMC6693425 DOI: 10.3389/fphys.2019.00852] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 06/20/2019] [Indexed: 12/14/2022] Open
Abstract
Vascular smooth muscle cells (VSMCs) are the predominant cell type in the arterial wall. These cells play a critical role in maintaining vascular homeostasis including vasoconstriction and vasodilatation through active contraction and relaxation. Dysregulation of VSMC function alters the response of blood vessels to mechanical stress, contributing to the pathogenesis of vascular diseases, particularly atherosclerosis and hypertension. The stiffness of VSMCs is a major regulator of vascular function. Previous studies suggest that intracellular Ca2+ controls the stiffness of VSMCs by a mechanism involving myosin contractile apparatus. More recent studies highlight important functions of cytoskeletal α-smooth muscle actin (α-SMA), α5β1 integrin, and integrin-mediated cell-extracellular matrix (ECM) interactions in Ca2+-dependent regulation of VSMC stiffness and adhesion to the ECM, providing novel insights into the mechanism of calcium action.
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Affiliation(s)
- Yi Zhu
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama-Birmingham, Birmingham, AL, United States
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, Columbia, MO, United States
| | - Jing Qu
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama-Birmingham, Birmingham, AL, United States
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li He
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama-Birmingham, Birmingham, AL, United States
| | - Feng Zhang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama-Birmingham, Birmingham, AL, United States
- Department of Ophthalmology, The Second Xiangya Hospital, Central-South University, Changsha, China
| | - Zijing Zhou
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama-Birmingham, Birmingham, AL, United States
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central-South University, Changsha, China
| | - Shanzhong Yang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama-Birmingham, Birmingham, AL, United States
| | - Yong Zhou
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama-Birmingham, Birmingham, AL, United States
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27
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Effects of a short-term interval aerobic training program with recovery bouts on vascular function in sedentary aged 70 or over: A randomized controlled trial. Arch Gerontol Geriatr 2019; 82:217-225. [DOI: 10.1016/j.archger.2019.02.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 02/17/2019] [Accepted: 02/25/2019] [Indexed: 01/10/2023]
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