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So WY, Johnson B, Gordon PB, Bishop KS, Gong H, Burr HA, Staunton JR, Handler C, Sood R, Scarcelli G, Tanner K. Macrophage mediated mesoscale brain mechanical homeostasis mechanically imaged via optical tweezers and Brillouin microscopy in vivo. bioRxiv 2024:2023.12.27.573380. [PMID: 38234798 PMCID: PMC10793422 DOI: 10.1101/2023.12.27.573380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Tissues are active materials where epithelial turnover, immune surveillance, and remodeling of stromal cells such as macrophages all regulate form and function. Scattering modalities such as Brillouin microscopy (BM) can non-invasively access mechanical signatures at GHz. However, our traditional understanding of tissue material properties is derived mainly from modalities which probe mechanical properties at different frequencies. Thus, reconciling measurements amongst these modalities remains an active area. Here, we compare optical tweezer active microrheology (OT-AMR) and Brillouin microscopy (BM) to longitudinally map brain development in the larval zebrafish. We determine that each measurement is able to detect a mechanical signature linked to functional units of the brain. We demonstrate that the corrected BM-Longitudinal modulus using a density factor correlates well with OT-AMR storage modulus at lower frequencies. We also show that the brain tissue mechanical properties are dependent on both the neuronal architecture and the presence of macrophages. Moreover, the BM technique is able to delineate the contributions to mechanical properties of the macrophage from that due to colony stimulating factor 1 receptor (CSF1R) mediated stromal remodeling. Here, our data suggest that macrophage remodeling is instrumental in the maintenance of tissue mechanical homeostasis during development. Moreover, the strong agreement between the OT-AM and BM further demonstrates that scattering-based technique is sensitive to both large and minute structural modification in vivo.
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Affiliation(s)
- Woong Young So
- National Cancer Institute, National Institutes of Health (NIH), MD, USA
| | - Bailey Johnson
- National Cancer Institute, National Institutes of Health (NIH), MD, USA
| | | | - Kevin S. Bishop
- National Cancer Institute, National Institutes of Health (NIH), MD, USA
| | - Hyeyeon Gong
- National Cancer Institute, National Institutes of Health (NIH), MD, USA
- University of Maryland - College Park, MD, USA
| | - Hannah A Burr
- National Cancer Institute, National Institutes of Health (NIH), MD, USA
| | | | | | - Raman Sood
- National Human Genome Research Institute, NIH, MD, USA
| | | | - Kandice Tanner
- National Cancer Institute, National Institutes of Health (NIH), MD, USA
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2
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Yu Chen H, Dina C, Small AM, Shaffer CM, Levinson RT, Helgadóttir A, Capoulade R, Munter HM, Martinsson A, Cairns BJ, Trudsø LC, Hoekstra M, Burr HA, Marsh TW, Damrauer SM, Dufresne L, Le Scouarnec S, Messika-Zeitoun D, Ranatunga DK, Whitmer RA, Bonnefond A, Sveinbjornsson G, Daníelsen R, Arnar DO, Thorgeirsson G, Thorsteinsdottir U, Gudbjartsson DF, Hólm H, Ghouse J, Olesen MS, Christensen AH, Mikkelsen S, Jacobsen RL, Dowsett J, Pedersen OBV, Erikstrup C, Ostrowski SR, O’Donnell CJ, Budoff MJ, Gudnason V, Post WS, Rotter JI, Lathrop M, Bundgaard H, Johansson B, Ljungberg J, Näslund U, Le Tourneau T, Smith JG, Wells QS, Söderberg S, Stefánsson K, Schott JJ, Rader DJ, Clarke R, Engert JC, Thanassoulis G. Dyslipidemia, inflammation, calcification, and adiposity in aortic stenosis: a genome-wide study. Eur Heart J 2023; 44:1927-1939. [PMID: 37038246 PMCID: PMC10232274 DOI: 10.1093/eurheartj/ehad142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 01/20/2023] [Accepted: 02/21/2023] [Indexed: 04/12/2023] Open
Abstract
AIMS Although highly heritable, the genetic etiology of calcific aortic stenosis (AS) remains incompletely understood. The aim of this study was to discover novel genetic contributors to AS and to integrate functional, expression, and cross-phenotype data to identify mechanisms of AS. METHODS AND RESULTS A genome-wide meta-analysis of 11.6 million variants in 10 cohorts involving 653 867 European ancestry participants (13 765 cases) was performed. Seventeen loci were associated with AS at P ≤ 5 × 10-8, of which 15 replicated in an independent cohort of 90 828 participants (7111 cases), including CELSR2-SORT1, NLRP6, and SMC2. A genetic risk score comprised of the index variants was associated with AS [odds ratio (OR) per standard deviation, 1.31; 95% confidence interval (CI), 1.26-1.35; P = 2.7 × 10-51] and aortic valve calcium (OR per standard deviation, 1.22; 95% CI, 1.08-1.37; P = 1.4 × 10-3), after adjustment for known risk factors. A phenome-wide association study indicated multiple associations with coronary artery disease, apolipoprotein B, and triglycerides. Mendelian randomization supported a causal role for apolipoprotein B-containing lipoprotein particles in AS (OR per g/L of apolipoprotein B, 3.85; 95% CI, 2.90-5.12; P = 2.1 × 10-20) and replicated previous findings of causality for lipoprotein(a) (OR per natural logarithm, 1.20; 95% CI, 1.17-1.23; P = 4.8 × 10-73) and body mass index (OR per kg/m2, 1.07; 95% CI, 1.05-1.9; P = 1.9 × 10-12). Colocalization analyses using the GTEx database identified a role for differential expression of the genes LPA, SORT1, ACTR2, NOTCH4, IL6R, and FADS. CONCLUSION Dyslipidemia, inflammation, calcification, and adiposity play important roles in the etiology of AS, implicating novel treatments and prevention strategies.
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Affiliation(s)
- Hao Yu Chen
- Division of Experimental Medicine, McGill University, 1001 Decarie Blvd., Room EM1.2218, Montreal, Quebec H4A 3J1, Canada
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, 1001 Decarie Blvd., Room D05.5120, Montreal, Quebec H4A 3J1, Canada
| | - Christian Dina
- Nantes Université, CHU Nantes, CNRS, INSERM, l’institut du thorax, 8 Quai Moncousu, Nantes F-44000, France
| | - Aeron M Small
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Christian M Shaffer
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, USA
| | - Rebecca T Levinson
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, USA
| | | | - Romain Capoulade
- Nantes Université, CHU Nantes, CNRS, INSERM, l’institut du thorax, 8 Quai Moncousu, Nantes F-44000, France
| | | | - Andreas Martinsson
- Department of Cardiology, Clinical Sciences, Lund University, Sweden and Skåne University Hospital, Lund, Sweden
- The Wallenberg Laboratory/Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University and the Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Benjamin J Cairns
- MRC Population Health Research Unit, Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Linea C Trudsø
- Laboratory for Molecular Cardiology, Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Mary Hoekstra
- Division of Experimental Medicine, McGill University, 1001 Decarie Blvd., Room EM1.2218, Montreal, Quebec H4A 3J1, Canada
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, 1001 Decarie Blvd., Room D05.5120, Montreal, Quebec H4A 3J1, Canada
| | - Hannah A Burr
- Division of Experimental Medicine, McGill University, 1001 Decarie Blvd., Room EM1.2218, Montreal, Quebec H4A 3J1, Canada
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, 1001 Decarie Blvd., Room D05.5120, Montreal, Quebec H4A 3J1, Canada
| | - Thomas W Marsh
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, 1001 Decarie Blvd., Room D05.5120, Montreal, Quebec H4A 3J1, Canada
- Department of Human Genetics, McGill University, Montreal, Canada
| | - Scott M Damrauer
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Line Dufresne
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, 1001 Decarie Blvd., Room D05.5120, Montreal, Quebec H4A 3J1, Canada
| | - Solena Le Scouarnec
- Nantes Université, CHU Nantes, CNRS, INSERM, l’institut du thorax, 8 Quai Moncousu, Nantes F-44000, France
| | - David Messika-Zeitoun
- Department of Cardiology, Assistance Publique - Hôpitaux de Paris, Bichat Hospital, Paris, France
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Dilrini K Ranatunga
- Division of Research, Kaiser Permanente of Northern California, Oakland, USA
| | - Rachel A Whitmer
- Department of Public Health Sciences, University of California Davis, Davis, USA
| | - Amélie Bonnefond
- University Lille, Inserm, CNRS, CHU Lille, Institut Pasteur de Lille, UMR1283-8199 EGID, Lille, France
- Department of Metabolism, Imperial College London, London, UK
| | | | - Ragnar Daníelsen
- Internal Medicine and Emergency Services, Landspitali—The National University Hospital of Iceland, Reykjavik, Iceland
| | - David O Arnar
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- Internal Medicine and Emergency Services, Landspitali—The National University Hospital of Iceland, Reykjavik, Iceland
- School of Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Gudmundur Thorgeirsson
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- School of Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Unnur Thorsteinsdottir
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- School of Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Daníel F Gudbjartsson
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- School of Engineering and Natural Sciences, University of Iceland, Reykjavik, Iceland
| | - Hilma Hólm
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
| | - Jonas Ghouse
- Laboratory for Molecular Cardiology, Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Morten Salling Olesen
- Laboratory for Molecular Cardiology, Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Alex H Christensen
- Laboratory for Molecular Cardiology, Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Cardiology, Herlev-Gentofte Hospital, Copenhagen, Denmark
| | - Susan Mikkelsen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Rikke Louise Jacobsen
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Joseph Dowsett
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | | | - Christian Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Sisse R Ostrowski
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | | | - Christopher J O’Donnell
- National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, Boston, USA
| | - Matthew J Budoff
- The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, USA
| | | | - Wendy S Post
- Division of Cardiology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, USA
| | - Jerome I Rotter
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, USA
| | - Mark Lathrop
- McGill University and Genome Quebec Innovation Centre, Montreal, Canada
- Department of Human Genetics, McGill University, Montreal, Canada
| | - Henning Bundgaard
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Bengt Johansson
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Johan Ljungberg
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Ulf Näslund
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Thierry Le Tourneau
- Nantes Université, CHU Nantes, CNRS, INSERM, l’institut du thorax, 8 Quai Moncousu, Nantes F-44000, France
| | - J Gustav Smith
- Department of Cardiology, Clinical Sciences, Lund University, Sweden and Skåne University Hospital, Lund, Sweden
- Wallenberg Center for Molecular Medicine and Lund University Diabetes Center, Lund, Sweden
- The Wallenberg Laboratory/Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University and the Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Quinn S Wells
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, USA
| | - Stefan Söderberg
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Kári Stefánsson
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- School of Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Jean-Jacques Schott
- Nantes Université, CHU Nantes, CNRS, INSERM, l’institut du thorax, 8 Quai Moncousu, Nantes F-44000, France
| | - Daniel J Rader
- Departments of Genetics and Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Robert Clarke
- MRC Population Health Research Unit, Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - James C Engert
- Division of Experimental Medicine, McGill University, 1001 Decarie Blvd., Room EM1.2218, Montreal, Quebec H4A 3J1, Canada
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, 1001 Decarie Blvd., Room D05.5120, Montreal, Quebec H4A 3J1, Canada
- Department of Human Genetics, McGill University, Montreal, Canada
| | - George Thanassoulis
- Division of Experimental Medicine, McGill University, 1001 Decarie Blvd., Room EM1.2218, Montreal, Quebec H4A 3J1, Canada
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, 1001 Decarie Blvd., Room D05.5120, Montreal, Quebec H4A 3J1, Canada
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3
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Chen HY, Cairns BJ, Small AM, Burr HA, Ambikkumar A, Martinsson A, Thériault S, Munter HM, Steffen B, Zhang R, Levinson RT, Shaffer CM, Rong J, Sonestedt E, Dufresne L, Ljungberg J, Näslund U, Johansson B, Ranatunga DK, Whitmer RA, Budoff MJ, Nguyen A, Vasan RS, Larson MG, Harris WS, Damrauer SM, Stark KD, Boekholdt SM, Wareham NJ, Pibarot P, Arsenault BJ, Mathieu P, Gudnason V, O'Donnell CJ, Rotter JI, Tsai MY, Post WS, Clarke R, Söderberg S, Bossé Y, Wells QS, Smith JG, Rader DJ, Lathrop M, Engert JC, Thanassoulis G. Association of FADS1/2 Locus Variants and Polyunsaturated Fatty Acids With Aortic Stenosis. JAMA Cardiol 2021; 5:694-702. [PMID: 32186652 PMCID: PMC7081150 DOI: 10.1001/jamacardio.2020.0246] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Question Can genetic analysis identify additional causes of aortic stenosis? Findings In this genome-wide association study of 44 703 participants, each copy of a FADS1/2 (fatty acid desaturase) genetic variant was associated with a 13% decrease in the odds of aortic stenosis. Results of a meta-analysis with 7 replication cohorts showed genome-wide significance, with biomarker and mendelian randomization analyses implicating elevated ω-6 fatty acid levels as having a potentially causal association with aortic valve calcium and aortic stenosis. Meaning These findings demonstrate that the FADS1/2 locus and fatty acid biosynthesis are associated with aortic stenosis and should be examined further for their potential as therapeutic targets. Importance Aortic stenosis (AS) has no approved medical treatment. Identifying etiological pathways for AS could identify pharmacological targets. Objective To identify novel genetic loci and pathways associated with AS. Design, Setting, and Participants This genome-wide association study used a case-control design to evaluate 44 703 participants (3469 cases of AS) of self-reported European ancestry from the Genetic Epidemiology Research on Adult Health and Aging (GERA) cohort (from January 1, 1996, to December 31, 2015). Replication was performed in 7 other cohorts totaling 256 926 participants (5926 cases of AS), with additional analyses performed in 6942 participants from the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) Consortium. Follow-up biomarker analyses with aortic valve calcium (AVC) were also performed. Data were analyzed from May 1, 2017, to December 5, 2019. Exposures Genetic variants (615 643 variants) and polyunsaturated fatty acids (ω-6 and ω-3) measured in blood samples. Main Outcomes and Measures Aortic stenosis and aortic valve replacement defined by electronic health records, surgical records, or echocardiography and the presence of AVC measured by computed tomography. Results The mean (SD) age of the 44 703 GERA participants was 69.7 (8.4) years, and 22 019 (49.3%) were men. The rs174547 variant at the FADS1/2 locus was associated with AS (odds ratio [OR] per C allele, 0.88; 95% CI, 0.83-0.93; P = 3.0 × 10−6), with genome-wide significance after meta-analysis with 7 replication cohorts totaling 312 118 individuals (9395 cases of AS) (OR, 0.91; 95% CI, 0.88-0.94; P = 2.5 × 10−8). A consistent association with AVC was also observed (OR, 0.91; 95% CI, 0.83-0.99; P = .03). A higher ratio of arachidonic acid to linoleic acid was associated with AVC (OR per SD of the natural logarithm, 1.19; 95% CI, 1.09-1.30; P = 6.6 × 10−5). In mendelian randomization, increased FADS1 liver expression and arachidonic acid were associated with AS (OR per unit of normalized expression, 1.31 [95% CI, 1.17-1.48; P = 7.4 × 10−6]; OR per 5–percentage point increase in arachidonic acid for AVC, 1.23 [95% CI, 1.01-1.49; P = .04]; OR per 5–percentage point increase in arachidonic acid for AS, 1.08 [95% CI, 1.04-1.13; P = 4.1 × 10−4]). Conclusions and Relevance Variation at the FADS1/2 locus was associated with AS and AVC. Findings from biomarker measurements and mendelian randomization appear to link ω-6 fatty acid biosynthesis to AS, which may represent a therapeutic target.
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Affiliation(s)
- Hao Yu Chen
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.,Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, Montreal, Quebec, Canada
| | - Benjamin J Cairns
- MRC (Medical Research Council) Population Health Research Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Clinical Trial Service Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Aeron M Small
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Hannah A Burr
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.,Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, Montreal, Quebec, Canada
| | - Athithan Ambikkumar
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, Montreal, Quebec, Canada
| | - Andreas Martinsson
- Department of Cardiology, Clinical Sciences, Lund University, Lund, Sweden.,Department of Cardiology, Skåne University Hospital, Lund, Sweden
| | - Sébastien Thériault
- Quebec Heart and Lung Institute, Laval University, Quebec City, Quebec, Canada
| | - Hans Markus Munter
- McGill University and Genome Quebec Innovation Centre, Montreal, Quebec, Canada
| | - Brian Steffen
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
| | - Richard Zhang
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, Montreal, Quebec, Canada
| | - Rebecca T Levinson
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Christian M Shaffer
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jian Rong
- National Heart, Lung, and Blood Institute, Bethesda, Maryland.,Boston University's Framingham Heart Study, Boston, Massachusetts
| | - Emily Sonestedt
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Line Dufresne
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, Montreal, Quebec, Canada
| | - Johan Ljungberg
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Ulf Näslund
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Bengt Johansson
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | | | - Rachel A Whitmer
- Department of Public Health Sciences, University of California, Davis
| | - Matthew J Budoff
- Los Angeles Biomedical Research Institute, Torrance, California.,Departments of Pediatrics and Medicine at Harbor-UCLA (University of California, Los Angeles) Medical Center, Torrance
| | - Albert Nguyen
- Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, Montreal, Quebec, Canada
| | - Ramachandran S Vasan
- National Heart, Lung, and Blood Institute, Bethesda, Maryland.,Boston University's Framingham Heart Study, Boston, Massachusetts
| | - Martin G Larson
- National Heart, Lung, and Blood Institute, Bethesda, Maryland.,Boston University's Framingham Heart Study, Boston, Massachusetts
| | - William S Harris
- Department of Medicine, Sanford School of Medicine, University of South Dakota, Sioux Falls, South Dakota.,OmegaQuant Analytics LLC, Sioux Falls, South Dakota
| | - Scott M Damrauer
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Ken D Stark
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - S Matthijs Boekholdt
- Department of Cardiology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Nicholas J Wareham
- MRC Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Philippe Pibarot
- Quebec Heart and Lung Institute, Laval University, Quebec City, Quebec, Canada
| | - Benoit J Arsenault
- Quebec Heart and Lung Institute, Laval University, Quebec City, Quebec, Canada
| | - Patrick Mathieu
- Quebec Heart and Lung Institute, Laval University, Quebec City, Quebec, Canada
| | | | - Christopher J O'Donnell
- National Heart, Lung, and Blood Institute, Bethesda, Maryland.,Boston University's Framingham Heart Study, Boston, Massachusetts
| | - Jerome I Rotter
- Los Angeles Biomedical Research Institute, Torrance, California.,Departments of Pediatrics and Medicine at Harbor-UCLA (University of California, Los Angeles) Medical Center, Torrance
| | - Michael Y Tsai
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
| | - Wendy S Post
- Division of Cardiology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Robert Clarke
- MRC (Medical Research Council) Population Health Research Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Clinical Trial Service Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Stefan Söderberg
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Yohan Bossé
- Quebec Heart and Lung Institute, Laval University, Quebec City, Quebec, Canada
| | - Quinn S Wells
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - J Gustav Smith
- Department of Cardiology, Skåne University Hospital, Lund, Sweden.,Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden.,Lund University Diabetes Center, Lund University, Lund, Sweden
| | - Daniel J Rader
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia.,Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Mark Lathrop
- McGill University and Genome Quebec Innovation Centre, Montreal, Quebec, Canada.,Department of Human Genetics, McGill University, Montreal, Quebec, Canada
| | - James C Engert
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.,Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, Montreal, Quebec, Canada.,Department of Human Genetics, McGill University, Montreal, Quebec, Canada
| | - George Thanassoulis
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.,Preventive and Genomic Cardiology, McGill University Health Centre and Research Institute, Montreal, Quebec, Canada
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4
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Paul CD, Hruska A, Staunton JR, Burr HA, Daly KM, Kim J, Jiang N, Tanner K. Probing cellular response to topography in three dimensions. Biomaterials 2019; 197:101-118. [PMID: 30641262 PMCID: PMC6390976 DOI: 10.1016/j.biomaterials.2019.01.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 12/28/2018] [Accepted: 01/05/2019] [Indexed: 12/18/2022]
Abstract
Biophysical aspects of in vivo tissue microenvironments include microscale mechanical properties, fibrillar alignment, and architecture or topography of the extracellular matrix (ECM). These aspects act in concert with chemical signals from a myriad of diverse ECM proteins to provide cues that drive cellular responses. Here, we used a bottom-up approach to build fibrillar architecture into 3D amorphous hydrogels using magnetic-field driven assembly of paramagnetic colloidal particles functionalized with three types of human ECM proteins found in vivo. We investigated if cells cultured in matrices comprised of fibrils of the same size and arranged in similar geometries will show similar behavior for each of the ECM proteins tested. We were able to resolve spatial heterogeneities in microscale mechanical properties near aligned fibers that were not observed in bulk tissue mechanics. We then used this platform to examine factors contributing to cell alignment in response to topographical cues in 3D laminin-rich matrices. Multiple human cell lines extended protrusions preferentially in directions parallel or perpendicular to aligned fibers independently of the ECM coating. Focal adhesion proteins, as measured by paxillin localization, were mainly diffuse in the cytoplasm, with few puncta localized at the protrusions. Integrin β1 and fascin regulated protrusion extension but not protrusion alignment. Myosin II inhibition did not reduce observed protrusion length. Instead, cells with reduced myosin II activity generated protrusions in random orientations when cultured in hydrogels with aligned fibers. Similarly, myosin II dependence was observed in vivo, where cells no longer aligned along the abluminal surfaces of blood vessels upon treatment with blebbistatin. These data suggest that myosin II can regulate sensing of topography in 3D engineered matrices for both normal and transformed cells.
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Affiliation(s)
- Colin D Paul
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, USA
| | - Alex Hruska
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, USA
| | - Jack R Staunton
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, USA
| | - Hannah A Burr
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, USA
| | - Kathryn M Daly
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, USA
| | - Jiyun Kim
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, USA
| | - Nancy Jiang
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, USA
| | - Kandice Tanner
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, USA.
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