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Sano S, Walsh K. Mosaic loss of chromosome Y and cardiovascular disease. Nat Rev Cardiol 2024; 21:151-152. [PMID: 38057442 DOI: 10.1038/s41569-023-00976-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Affiliation(s)
- Soichi Sano
- Laboratory of Cardiovascular Mosaicism, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA.
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Bhatt AP, Arnold JW, Awoniyi M, Sun S, Santiago VF, Quintela PH, Walsh K, Ngobeni R, Hansen B, Gulati A, Carroll IM, Azcarate-Peril MA, Fodor AA, Swann J, Bartelt LA. Giardia Antagonizes Beneficial Functions of Indigenous and Therapeutic Intestinal Bacteria during Malnutrition. bioRxiv 2024:2024.01.22.575921. [PMID: 38328247 PMCID: PMC10849499 DOI: 10.1101/2024.01.22.575921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Undernutrition in children commonly disrupts the structure and function of the small intestinal microbial community, leading to enteropathies, compromised metabolic health, and impaired growth and development. The mechanisms by which diet and microbes mediate the balance between commensal and pathogenic intestinal flora remain elusive. In a murine model of undernutrition, we investigated the direct interactions Giardia lamblia, a prevalent small intestinal pathogen, on indigenous microbiota and specifically on Lactobacillus strains known for their mucosal and growth homeostatic properties. Our research reveals that Giardia colonization shifts the balance of lactic acid bacteria, causing a relative decrease in Lactobacillus spp . and an increase in Bifidobacterium spp . This alteration corresponds with a decrease in multiple indicators of mucosal and nutritional homeostasis. Additionally, protein-deficient conditions coupled with Giardia infection exacerbate the rise of primary bile acids and susceptibility to bile acid-induced intestinal barrier damage. In epithelial cell monolayers, Lactobacillus spp . mitigated bile acid-induced permeability, showing strain-dependent protective effects. In vivo, L. plantarum, either alone or within a Lactobacillus spp consortium, facilitated growth in protein-deficient mice, an effect attenuated by Giardia , despite not inhibiting Lactobacillus colonization. These results highlight Giardia's potential role as a disruptor of probiotic functional activity, underscoring the imperative for further research into the complex interactions between parasites and bacteria under conditions of nutritional deficiency.
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Walsh K, Cochran JD, Evans MA. Clonal Hematopoiesis: Getting to the Heart of the Problem With Clone Size. JACC Heart Fail 2024:S2213-1779(24)00037-4. [PMID: 38300211 DOI: 10.1016/j.jchf.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 02/02/2024]
Affiliation(s)
- Kenneth Walsh
- Hematovascular Biology Center, Division of Cardiovascular Medicine and Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA.
| | - Jesse D Cochran
- Hematovascular Biology Center, Division of Cardiovascular Medicine and Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA; Medical Scientist Training Program, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Megan A Evans
- Hematovascular Biology Center, Division of Cardiovascular Medicine and Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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Evans MA, Walsh K. Clonal Hematopoiesis and Transcatheter Aortic Valve Replacement: A Fatal Connection. JACC Basic Transl Sci 2023; 8:1436-1438. [PMID: 38093748 PMCID: PMC10714164 DOI: 10.1016/j.jacbts.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Affiliation(s)
- Megan A. Evans
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Kenneth Walsh
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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Cochran J, Yura Y, Thel MC, Doviak H, Polizio AH, Arai Y, Arai Y, Horitani K, Park E, Chavkin NW, Kour A, Sano S, Mahajan N, Evans M, Huba M, Naya NM, Sun H, Ban Y, Hirschi KK, Toldo S, Abbate A, Druley TE, Ruberg FL, Maurer MS, Ezekowitz JA, Dyck JR, Walsh K. Clonal Hematopoiesis in Clinical and Experimental Heart Failure With Preserved Ejection Fraction. Circulation 2023; 148:1165-1178. [PMID: 37681311 PMCID: PMC10575571 DOI: 10.1161/circulationaha.123.064170] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 01/26/2023] [Accepted: 08/07/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND Clonal hematopoiesis (CH), which results from an array of nonmalignant driver gene mutations, can lead to altered immune cell function and chronic disease, and has been associated with worse outcomes in patients with heart failure (HF) with reduced ejection fraction. However, the role of CH in the prognosis of HF with preserved ejection fraction (HFpEF) has been understudied. This study aimed to characterize CH in patients with HFpEF and elucidate its causal role in a murine model. METHODS Using a panel of 20 candidate CH driver genes and a variant allele fraction cutoff of 0.5%, ultradeep error-corrected sequencing identified CH in a cohort of 81 patients with HFpEF (mean age, 71±6 years; ejection fraction, 63±5%) and 36 controls without a diagnosis of HFpEF (mean age, 74±7 years; ejection fraction, 61.5±8%). CH was also evaluated in a replication cohort of 59 individuals with HFpEF. RESULTS Compared with controls, there was an enrichment of TET2-mediated CH in the HFpEF patient cohort (12% versus 0%, respectively; P=0.02). In the HFpEF cohort, patients with CH exhibited exacerbated diastolic dysfunction in terms of E/e' (14.9 versus 11.7, respectively; P=0.0096) and E/A (1.69 versus 0.89, respectively; P=0.0206) compared with those without CH. The association of CH with exacerbated diastolic dysfunction was corroborated in a validation cohort of individuals with HFpEF. In accordance, patients with HFpEF, an age ≥70 years, and CH exhibited worse prognosis in terms of 5-year cardiovascular-related hospitalization rate (hazard ratio, 5.06; P=0.042) compared with patients with HFpEF and an age ≥70 years without CH. To investigate the causal role of CH in HFpEF, nonconditioned mice underwent adoptive transfer with Tet2-wild-type or Tet2-deficient bone marrow and were subsequently subjected to a high-fat diet/L-NAME (Nω-nitro-l-arginine methyl ester) combination treatment to induce features of HFpEF. This model of Tet2-CH exacerbated cardiac hypertrophy by heart weight/tibia length and cardiomyocyte size, diastolic dysfunction by E/e' and left ventricular end-diastolic pressure, and cardiac fibrosis compared with the Tet2-wild-type condition. CONCLUSIONS CH is associated with worse heart function and prognosis in patients with HFpEF, and a murine experimental model of Tet2-mediated CH displays greater features of HFpEF.
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Affiliation(s)
- Jesse Cochran
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
- Medical Scientist Training Program, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Yoshimitsu Yura
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
- Current address: Department of Cardiovascular Medicine, Nagoya University School of Medicine, Nagoya 466-8550, Japan
| | - Mark C. Thel
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Heather Doviak
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Ariel H. Polizio
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Yuka Arai
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Yohei Arai
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Keita Horitani
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
- Current address: Department of Internal Medicine II, Kansai Medical University, Osaka 573-1010, Japan
| | - Eunbee Park
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Nicholas W. Chavkin
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Anupreet Kour
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Soichi Sano
- Laboratory of Cardiovascular Mosaicism, National Cerebral and Cardiovascular Center, Osaka 564-8565, Japan
| | | | - Megan Evans
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Mahalia Huba
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | | | - Hanna Sun
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Youngho Ban
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Karen K. Hirschi
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
- Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA
| | - Stefano Toldo
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Antonio Abbate
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | | | - Frederick L. Ruberg
- Section of Cardiovascular Medicine, Department of Medicine and Amyloidosis Center, Boston University Chobanian & Avedisian School of Medicine/Boston Medical Center, Boston, MA 02118, USA
| | - Mathew S. Maurer
- Seymour, Paul, and Gloria Milstein Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Justin A. Ezekowitz
- Alberta Heart Failure Etiology and Analysis Research Team (HEART) project
- Department of Medicine, Division of Cardiology, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
| | - Jason R.B. Dyck
- Alberta Heart Failure Etiology and Analysis Research Team (HEART) project
- Cardiovascular Research Centre, Department of Pediatrics, University of Alberta, Edmonton, Alberta, T6G 2S2, Canada
| | - Kenneth Walsh
- Robert M. Berne Cardiovascular Research Center, Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
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Chavkin NW, Vippa T, Jung C, McDonnell S, Hirschi KK, Gokce N, Walsh K. Obesity accelerates endothelial-to-mesenchymal transition in adipose tissues of mice and humans. Front Cardiovasc Med 2023; 10:1264479. [PMID: 37795485 PMCID: PMC10546194 DOI: 10.3389/fcvm.2023.1264479] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/07/2023] [Indexed: 10/06/2023] Open
Abstract
Introduction Vascular dysfunction and chronic inflammation are characteristics of obesity-induced adipose tissue dysfunction. Proinflammatory cytokines can drive an endothelial-to-mesenchymal transition (EndoMT), where endothelial cells undergo a phenotypic switch to mesenchymal-like cells that are pro-inflammatory and pro-fibrotic. In this study, we sought to determine whether obesity can promote EndoMT in adipose tissue. Methods Mice in which endothelial cells are lineage-traced with eYFP were fed a high-fat/high-sucrose (HF/HS) or Control diet for 13, 26, and 52 weeks, and EndoMT was assessed in adipose tissue depots as percentage of CD45-CD31-Acta2+ mesenchymal-like cells that were eYFP +. EndoMT was also assessed in human adipose endothelial cells through cell culture assays and by the analysis of single cell RNA sequencing datasets obtained from the visceral adipose tissues of obese individuals. Results Quantification by flow cytometry showed that mice fed a HF/HS diet display a time-dependent increase in EndoMT over Control diet in subcutaneous adipose tissue (+3.0%, +2.6-fold at 13 weeks; +10.6%, +3.2-fold at 26 weeks; +11.8%, +2.9-fold at 52 weeks) and visceral adipose tissue (+5.5%, +2.3-fold at 13 weeks; +20.7%, +4.3-fold at 26 weeks; +25.7%, +4.8-fold at 52 weeks). Transcriptomic analysis revealed that EndoMT cells in visceral adipose tissue have enriched expression of genes associated with inflammatory and TGFβ signaling pathways. Human adipose-derived microvascular endothelial cells cultured with TGF-β1, IFN-γ, and TNF-α exhibited a similar upregulation of EndoMT markers and induction of inflammatory response pathways. Analysis of single cell RNA sequencing datasets from visceral adipose tissue of obese patients revealed a nascent EndoMT sub-cluster of endothelial cells with reduced PECAM1 and increased ACTA2 expression, which was also enriched for inflammatory signaling genes and other genes associated with EndoMT. Discussion These experimental and clinical findings show that chronic obesity can accelerate EndoMT in adipose tissue. We speculate that EndoMT is a feature of adipose tissue dysfunction that contributes to local inflammation and the systemic metabolic effects of obesity..
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Affiliation(s)
- Nicholas W. Chavkin
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, United States
- Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Tanvi Vippa
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Changhee Jung
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Stephanie McDonnell
- Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Karen K. Hirschi
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, United States
- Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA, United States
- Department of Medicine, Yale Cardiovascular Research Center, Yale University School of Medicine, New Haven, CT, United States
| | - Noyan Gokce
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, United States
| | - Kenneth Walsh
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, United States
- Hematovascular Biology Center, University of Virginia School of Medicine, Charlottesville, VA, United States
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Abstract
This protocol describes the generation of chimeric mice in which the Y chromosome is deleted from a proportion of blood cells. This model recapitulates the phenomenon of hematopoietic mosaic loss of Y chromosome (mLOY), which is frequently observed in the blood of aged men. To construct mice with hematopoietic Y chromosome loss, lineage-negative cells are isolated from the bone marrow of ROSA26-Cas9 knock-in mice. These cells are transduced with a lentivirus vector encoding a guide RNA (gRNA) that targets multiple repeats of the Y chromosome centromere, effectively removing the Y chromosome. These cells are then transplanted into lethally irradiated wildtype C57BL6 mice. Control gRNAs are designed to target either no specific region or the fourth intron of Actin gene. Transduced cells are tracked by measuring the fraction of blood cells expressing the virally encoded reporter gene tRFP. This model represents a clinically relevant model of hematopoietic mosaic loss of Y chromosome, which can be used to study the impact of mLOY on various age-related diseases. Graphical overview.
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Affiliation(s)
- Soichi Sano
- Laboratory of Cardiovascular Mosaicism, National Cerebral and Cardiovascular Center, Osaka, Japan
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
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Giallourou N, Arnold J, McQuade ETR, Awoniyi M, Becket RVT, Walsh K, Herzog J, Gulati AS, Carroll IM, Montgomery S, Quintela PH, Faust AM, Singer SM, Fodor AA, Ahmad T, Mahfuz M, Mduma E, Walongo T, Guerrant RL, Balfour Sartor R, Swann JR, Kosek MN, Bartelt LA. Giardia hinders growth by disrupting nutrient metabolism independent of inflammatory enteropathy. Nat Commun 2023; 14:2840. [PMID: 37202423 PMCID: PMC10195804 DOI: 10.1038/s41467-023-38363-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 04/27/2023] [Indexed: 05/20/2023] Open
Abstract
Giardia lamblia (Giardia) is among the most common intestinal pathogens in children in low- and middle-income countries (LMICs). Although Giardia associates with early-life linear growth restriction, mechanistic explanations for Giardia-associated growth impairments remain elusive. Unlike other intestinal pathogens associated with constrained linear growth that cause intestinal or systemic inflammation or both, Giardia seldom associates with chronic inflammation in these children. Here we leverage the MAL-ED longitudinal birth cohort and a model of Giardia mono-association in gnotobiotic and immunodeficient mice to propose an alternative pathogenesis of this parasite. In children, Giardia results in linear growth deficits and gut permeability that are dose-dependent and independent of intestinal markers of inflammation. The estimates of these findings vary between children in different MAL-ED sites. In a representative site, where Giardia associates with growth restriction, infected children demonstrate broad amino acid deficiencies, and overproduction of specific phenolic acids, byproducts of intestinal bacterial amino acid metabolism. Gnotobiotic mice require specific nutritional and environmental conditions to recapitulate these findings, and immunodeficient mice confirm a pathway independent of chronic T/B cell inflammation. Taken together, we propose a new paradigm that Giardia-mediated growth faltering is contingent upon a convergence of this intestinal protozoa with nutritional and intestinal bacterial factors.
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Affiliation(s)
- Natasa Giallourou
- Division of Digestive Diseases, Department of Metabolism, Digestion, and Reproduction, Faculty of Medicine, Imperial College London, London, UK.
- Centre of Excellence in Biobanking and Biomedical Research, Molecular Medicine Research Center, University of Cyprus, Nicosia, Cyprus.
| | - Jason Arnold
- Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Molecular Genetics and Microbiology, Duke Microbiome Center, Duke University School of Medicine, Durham, NC, 27710, USA
| | | | - Muyiwa Awoniyi
- Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Rose Viguna Thomas Becket
- Departments of Pediatrics and Pathology and Laboratory Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kenneth Walsh
- Institute for Infectious Diseases and Global Health and the Division of Infectious Diseases, Department of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jeremy Herzog
- Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ajay S Gulati
- Departments of Pediatrics and Pathology and Laboratory Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ian M Carroll
- Department of Nutrition, Gillings School of Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Stephanie Montgomery
- Department of Pathology and Laboratory Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | | | - Steven M Singer
- Department of Biology, Georgetown University, Washington, DC, USA
| | - Anthony A Fodor
- The University of North Carolina Charlotte, Department of Bioinformatics and Genomics, Charlotte, USA
| | - Tahmeed Ahmad
- International Center for Diarrheal Disease Research, Dhaka, Bangladesh
| | - Mustafa Mahfuz
- International Center for Diarrheal Disease Research, Dhaka, Bangladesh
| | - Esto Mduma
- Haydom Global Health Research Centre, Haydom Lutheran Hospital, Haydom, Tanzania
| | - Thomas Walongo
- Haydom Global Health Research Centre, Haydom Lutheran Hospital, Haydom, Tanzania
| | - Richard L Guerrant
- Division of Infectious Diseases and International Health, Department of Medicine, The University of Virginia Charlottesville, Charlottesville, VA, USA
| | - R Balfour Sartor
- Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jonathan R Swann
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Margaret N Kosek
- Division of Infectious Diseases and International Health, Department of Medicine, The University of Virginia Charlottesville, Charlottesville, VA, USA
| | - Luther A Bartelt
- Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Institute for Infectious Diseases and Global Health and the Division of Infectious Diseases, Department of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Department of Microbiology & Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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Vijg J, Schumacher B, Abakir A, Antonov M, Bradley C, Cagan A, Church G, Gladyshev VN, Gorbunova V, Maslov AY, Reik W, Sharifi S, Suh Y, Walsh K. Mitigating age-related somatic mutation burden. Trends Mol Med 2023:S1471-4914(23)00072-2. [PMID: 37121869 DOI: 10.1016/j.molmed.2023.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 05/02/2023]
Abstract
Genomes are inherently unstable and require constant DNA repair to maintain their genetic information. However, selective pressure has optimized repair mechanisms in somatic cells only to allow transmitting genetic information to the next generation, not to maximize sequence integrity long beyond the reproductive age. Recent studies have confirmed that somatic mutations, due to errors during genome repair and replication, accumulate in tissues and organs of humans and model organisms. Here, we describe recent advances in the quantitative analysis of somatic mutations in vivo. We also review evidence for or against a possible causal role of somatic mutations in aging. Finally, we discuss options to prevent, delay or eliminate de novo, random somatic mutations as a cause of aging.
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Affiliation(s)
- Jan Vijg
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA; Center for Single-Cell Omics, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Björn Schumacher
- Institute for Genome Stability in Aging and Disease, University and University Hospital of Cologne, Cologne, Germany; Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.
| | - Abdulkadir Abakir
- Altos Labs Cambridge Institute of Science, Granta Park, Cambridge, UK
| | | | | | - Alex Cagan
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | - George Church
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Vadim N Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Vera Gorbunova
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Alexander Y Maslov
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Wolf Reik
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK; Epigenetics Programme, Babraham Institute, Cambridge, CB22 3AT, UK; Altos Labs Cambridge Institute of Science, Granta Park, Cambridge, UK; Wellcome Trust - Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | | | - Yousin Suh
- Department of Obstetrics and Gynecology, Columbia University Irving Medical Center, New York, NY, USA; Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
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10
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Sano S, Thel MC, Walsh K. Mosaic Loss of Y Chromosome in White Blood Cells: Its Impact on Men's Health. Physiology (Bethesda) 2023; 38:0. [PMID: 36976266 DOI: 10.1152/physiol.00008.2023] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
We present a brief introduction of loss of Y chromosome (LOY) in blood, and describe the known risk factors for this condition. We then overview the associations between LOY and age-related disease traits. Finally, we discuss murine models and potential mechanisms by which LOY contributes to disease.
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Affiliation(s)
- Soichi Sano
- National Cerebral and Cardiovascular Center, Osaka, Japan
- Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Mark C Thel
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, United States
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11
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Affiliation(s)
- Jesse Cochran
- Hematovascular Biology Center, Division of Cardiovascular Medicine and Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville. (J.C., K.W.)
- Medical Scientist Training Program, University of Virginia School of Medicine, Charlottesville. (J.C.)
| | - Kenneth Walsh
- Hematovascular Biology Center, Division of Cardiovascular Medicine and Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville. (J.C., K.W.)
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Costa N, Olson R, Mescouto K, Hodges PW, Dillon M, Evans K, Walsh K, Jensen N, Setchell J. Uncertainty in low back pain care - insights from an ethnographic study. Disabil Rehabil 2023; 45:784-795. [PMID: 35188845 DOI: 10.1080/09638288.2022.2040615] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 02/01/2022] [Accepted: 02/05/2022] [Indexed: 02/06/2023]
Abstract
PURPOSE To explore how uncertainty plays out in low back pain (LBP) care and investigate how clinicians manage accompanying emotions/tensions. MATERIALS AND METHODS We conducted ethnographic observations of clinical encounters in a private physiotherapy practice and a public multidisciplinary pain clinic. Our qualitative reflexive thematic analysis involved abductive thematic principles informed by Fox and Katz (medical uncertainty) and Ahmed (emotions). RESULTS We identified three themes. (1) Sources of uncertainty: both patients and clinicians expressed uncertainty during clinical encounters (e.g., causes of LBP, mismatch between imaging findings and presentation). Such uncertainty was often accompanied by emotions - anger, tiredness, frustration. (2) Neglecting complexity: clinicians often attempted to decrease uncertainty and associated emotions by providing narrow answers to questions about LBP. At times, clinicians' denial of uncertainty also appeared to deny patients the right to make informed decisions about treatments. (3) Attending to uncertainty?: clinicians attended to uncertainty through logical reasoning, reassurance, acknowledgement, personalising care, shifting power, adjusting language and disclosing risks. CONCLUSIONS Uncertainty pervades LBP care and is often accompanied by emotions, emphasising the need for a healthcare culture that recognises the emotional dimensions of patient-clinician interactions and prepares clinicians and patients to be more accepting of, and clearly communicate about, uncertainty.IMPLICATIONS FOR REHABILITATIONUncertainty pervades LBP care and is often accompanied by emotions.Neglecting complexity in LBP care may compromise person-centred care.Acknowledging uncertainty can enhance communication, balance patient-clinician relationships and address human aspects of care.
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Affiliation(s)
- N Costa
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
- School of Public Health, The University of Sydney, Sydney, Australia
| | - R Olson
- School of Social Science, The University of Queensland, Brisbane, Australia
| | - K Mescouto
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - P W Hodges
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - M Dillon
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - K Evans
- Healthia Limited, Brisbane, Australia
- Faculty of Health and Medicine, The University of Sydney, Sydney, Australia
| | - K Walsh
- Metro South Health Persistent Pain Management Service, Brisbane, Australia
| | - N Jensen
- Metro South Health Persistent Pain Management Service, Brisbane, Australia
| | - J Setchell
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
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13
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Polizio AH, Park E, Walsh K. Clonal Hematopoiesis: Connecting Aging and Inflammation in Atherosclerosis. Curr Atheroscler Rep 2023; 25:105-111. [PMID: 36808603 PMCID: PMC10552081 DOI: 10.1007/s11883-023-01083-5] [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] [Subscribe] [Scholar Register] [Accepted: 01/11/2023] [Indexed: 02/20/2023]
Abstract
PURPOSE OF REVIEW Clonal hematopoiesis (CH) is a prevalent condition that results from the acquisition of somatic mutations in hematopoietic stem cells. When these mutations occur in "driver" genes, they can potentially confer fitness advantages to the cell, leading to a clonal expansion. While most clonal expansions of mutant cells are generally considered to be asymptomatic since they do not impact overall blood cell numbers, CH carriers display long-term risks of all-cause mortality and age-associated diseases including cardiovascular disease (CVD). This review summarizes recent findings in CH related to aging, atherosclerotic CVD, and inflammation, emphasizing epidemiological and mechanistic studies, and potential therapeutic options to treat CVDs that are promoted by CH. RECENT FINDINGS Epidemiological studies have revealed associations between CH and CVDs. Experimental studies with CH models employing the Tet2- and Jak2-mutant mouse lines display inflammasome activation and a chronic inflammatory state that leads to accelerated atherosclerotic lesion growth. A body of evidence suggests that CH represents a new causal risk factor for CVD. Studies also indicate that understanding an individual's CH status could provide guidance for personalized approaches to treat atherosclerosis and other CVDs with anti-inflammatory drugs.
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Affiliation(s)
- Ariel H Polizio
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Eunbee Park
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA.
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA, USA.
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Abstract
Somatic mosaicism, the occurrence of multiple genetically distinct cell clones within the same tissue, is an evitable consequence of human aging. The hematopoietic system is no exception to this, where studies have revealed the presence of expanded blood cell clones carrying mutations in preleukemic driver genes and/or genetic alterations in chromosomes. This phenomenon is referred to as clonal hematopoiesis and is remarkably prevalent in elderly individuals. While clonal hematopoiesis represents an early step toward a hematological malignancy, most individuals will never develop blood cancer. Somewhat unexpectedly, epidemiological studies have found that clonal hematopoiesis is associated with an increase in the risk of all-cause mortality and age-related disease, particularly in the cardiovascular system. Studies using murine models of clonal hematopoiesis have begun to shed light on this relationship, suggesting that driver mutations in mature blood cells can causally contribute to aging and disease by augmenting inflammatory processes. Here we provide an up-to-date review of clonal hematopoiesis within the context of somatic mosaicism and aging and describe recent epidemiological studies that have reported associations with age-related disease. We will also discuss the experimental studies that have provided important mechanistic insight into how driver mutations promote age-related disease and how this knowledge could be leveraged to treat individuals with clonal hematopoiesis.
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Affiliation(s)
- Megan A Evans
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
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15
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Hayes R, Cassidy M, Nevin R, Walsh K, Griffin A, Mealy B, Herbst J, Carroll KM. 294 INTEGRATION OF MUSIC THERAPY WITHIN A MULTIDISCIPLINARY TEAM FOR OLDER ADULTS IN AN ACUTE HOSPITAL. Age Ageing 2022. [DOI: 10.1093/ageing/afac218.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Music Therapy (MT) is an evidence-based intervention in which a music therapist uses music within a therapeutic relationship to achieve targeted goals. Studies show that MT may improve patient communication, cognition and mood, and facilitate rehabilitation by improving motor skills, particularly in those with stroke and Parkinson’s disease. We aimed to integrate MT within our geriatric multidisciplinary team (MDT) by: (1) promoting knowledge of MT among MDT staff; and (2) developing and implementing a MT referral pathway for patients. Furthermore, we aimed to assess its overall impact.
Methods
Music therapists delivered oral presentations and experiential learning through creative workshops, collaboration and feedback to allied health therapists in our geriatric MDT. Criteria for referrals for MT and a referral pathway were developed. Data on patients who received MT was collated.
Results
There were 70 referrals for MT from our MDT. 61% were female, mean age 77 years. Referral sources were occupational therapists (45%), speech therapists (34%), medical social workers (13%), physiotherapists (8%). Patients included those with stroke (41%), general medical conditions (23%), dementia (16%), Parkinson's (11%) and mental health concerns (9%). There were 16 joint MDT sessions and a mean of 5 MT sessions per patient (about 40 minutes in duration). Interventions included: Melodic Intonation Therapy (MIT), singing and vocal exercises, Rhythmic Auditory Stimulation (RAS), Musical Neglect Training (MNT), Therapeutic Instrumental Musical Performance (TIMP), reminiscence and song-writing. Overall, we identified better engagement with rehabilitation and improvements in mood, speech (voice strength and verbal fluency) and upper and lower limb co-ordination.
Conclusion
MT was successfully integrated into a geriatric MDT and had beneficial effects on patient mood, speech, communication and motor function. Education of MDT members was crucial in achieving appropriate MT referrals. Joint MDT’s also facilitated individualised MT interventions. Findings strongly support our model that incorporates MT within an MDT.
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Affiliation(s)
- R Hayes
- St. James's Hospital Creative Life Centre, Mercer's Institute for Successful Ageing, , Dublin, Ireland
| | - M Cassidy
- St. James's Hospital Creative Life Centre, Mercer's Institute for Successful Ageing, , Dublin, Ireland
| | - R Nevin
- St. James's Hospital Creative Life Centre, Mercer's Institute for Successful Ageing, , Dublin, Ireland
| | - K Walsh
- St. James’s Hospital Speech and Language Therapy Department, , Dublin, Ireland
| | - A Griffin
- St. James’s Hospital Occupational Therapy Department, , Dublin, Ireland
| | - B Mealy
- St. James’s Hospital Physiotherapy Department, , Dublin, Ireland
| | - J Herbst
- St. James’s Hospital Medical Social Work Department, , Dublin, Ireland
| | - KM Carroll
- St. James’s Hospital Department of Gerontology, , Dublin, Ireland
- St. James's Hospital Creative Life Centre, Mercer's Institute for Successful Ageing, , Dublin, Ireland
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16
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Cassidy M, Hayes R, Nevin R, Griffin A, Herbst J, Mealy B, Walsh K, Donnelly R, Harrison H, Jariol A, Joseph L, Carroll KM. 301 BENEFITS OF ENVIRONMENTAL MUSIC THERAPY IN AN ACUTE HOSPITAL. Age Ageing 2022. [DOI: 10.1093/ageing/afac218.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Environmental Music Therapy (EMT) uses live music played by a music therapist to enhance the surrounding environment and is increasingly used in clinical settings. Studies show that EMT may reduce anxiety, enhance wellbeing, promote better communication between patients and staff, and reduce patient perception of waiting times in hospital. We aimed to explore the benefit of EMT for older adults in a geriatric outpatient setting and on rehabilitation wards.
Methods
Harp music was played by a music therapist in the vicinity of ambulatory clinics and on rehabilitation wards for 4 hours per week (over a 2-day period) for 20 weeks. Music exposure on any given day was to an estimated 50 outpatients, as well as 50 people passing the vicinity or to about 30 patients on the rehabilitation ward. Music was selected and played in a dynamic process, responding to verbal and non-verbal reactions of patients, family, and staff. Voluntary responses were recorded and collated.
Results
There were 36 recorded responses and all reflected positively on EMT. Patients cited that the music created a welcoming space and stimulated interaction and conversation. Several patients waiting for their clinic appointment noted that it distracted from fearful expectation and was a source of comfort. Some commented that they felt more relaxed and that it reduced stress. On rehabilitation wards, patients found familiar music to be calming with nurses citing that it stimulated social interaction between patients, family and staff. Responses to EMT gave insights that resulted in patient referrals for music therapy.
Conclusion
Environmental music played by a music therapist was found to modify patient hospital experiences. In particular, it appeared to reduce self-perceived stress and stimulate positive social interaction and conversation. This supports the use of EMT to advance the integration of the arts for wellbeing in an acute hospital.
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Affiliation(s)
- M Cassidy
- St. James's Hospital Creative Life Centre, Mercer's Institute for Successful Ageing, , Dublin, Ireland
| | - R Hayes
- St. James's Hospital Creative Life Centre, Mercer's Institute for Successful Ageing, , Dublin, Ireland
| | - R Nevin
- St. James's Hospital Creative Life Centre, Mercer's Institute for Successful Ageing, , Dublin, Ireland
| | - A Griffin
- St. James's Hospital Occupational Therapy Department, , Dublin, Ireland
| | - J Herbst
- St. James's Hospital Medical Social Work Department, , Dublin, Ireland
| | - B Mealy
- St. James's Hospital Physiotherapy Department, , Dublin, Ireland
| | - K Walsh
- St. James's Hospital Speech and Language Therapy Department, , Dublin, Ireland
| | - R Donnelly
- St. James’s Hospital Medicine for the Elderly Department, , Dublin, Ireland
| | | | | | - L Joseph
- St. James’s Hospital Medicine for the Elderly Department, , Dublin, Ireland
| | - KM Carroll
- St. James's Hospital Creative Life Centre, Mercer's Institute for Successful Ageing, , Dublin, Ireland
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17
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Furuuchi R, Shimizu I, Yoshida Y, Katsuumi G, Suda M, Kubota Y, Walsh K, Minamino T. Endothelial SIRT-1 has a critical role in the maintenance of capillarization in brown adipose tissue. iScience 2022; 25:105424. [PMID: 36388988 PMCID: PMC9641227 DOI: 10.1016/j.isci.2022.105424] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 09/06/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
Brown adipose tissue (BAT) has critical roles in thermogenesis and systemic metabolism. Capillary rarefaction was reported to develop in BAT with dietary obesity, and previous studies showed that suppression of vascular endothelial growth factor A (VEGF-A) reduced capillary density in BAT, promoting the functional decline of this organ. Capillarization is regulated through the balance between angiogenesis and vasculogenesis on the one hand and apoptosis of endothelial cells (ECs) on the other; however, the role of EC apoptosis in BAT remained to be explored. In studies testing the role of boysenberry polyphenols (BoyP) in BAT, we found that BoyP decreased EC apoptosis, enhanced capillarization in BAT, and ameliorated dietary BAT dysfunction, which was associated with the upregulation of nicotinamide adenine dinucleotide-dependent protein deacetylase sirtuin 1 (SIRT-1) in ECs. Our studies suggest that EC SIRT-1 would be one of the potential targets of BoyP that contributes to BAT capillarization and function.
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Affiliation(s)
- Ryo Furuuchi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan,Bourbon Corporation, Niigata 945-8611, Japan,Department of Advanced Senotherapeutics, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan,Corresponding author
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan,Department of Advanced Senotherapeutics, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Goro Katsuumi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Kenneth Walsh
- Division of Cardiovascular Medicine, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan,Japan Agency for Medical Research and Development-Core Research for Evolutionary Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan,Corresponding author
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18
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Brojakowska A, Kour A, Thel MC, Park E, Bisserier M, Garikipati VNS, Hadri L, Mills PJ, Walsh K, Goukassian DA. Author Correction: Retrospective analysis of somatic mutations and clonal hematopoiesis in astronauts. Commun Biol 2022; 5:1078. [PMID: 36217020 PMCID: PMC9550764 DOI: 10.1038/s42003-022-04071-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Agnieszka Brojakowska
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Anupreet Kour
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Mark Charles Thel
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Eunbee Park
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Malik Bisserier
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Venkata Naga Srikanth Garikipati
- Dorothy M. Davis Heart Lung and Research Institute and Department of Emergency Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Lahouaria Hadri
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Paul J Mills
- Center of Excellence for Research and Training in Integrative Health, University of California San Diego, La Jolla, CA, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - David A Goukassian
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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19
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Chavkin NW, Genet G, Poulet M, Jeffery ED, Marziano C, Genet N, Vasavada H, Nelson EA, Acharya BR, Kour A, Aragon J, McDonnell SP, Huba M, Sheynkman GM, Walsh K, Hirschi KK. Endothelial cell cycle state determines propensity for arterial-venous fate. Nat Commun 2022; 13:5891. [PMID: 36202789 PMCID: PMC9537338 DOI: 10.1038/s41467-022-33324-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 09/09/2022] [Indexed: 12/15/2022] Open
Abstract
During blood vessel development, endothelial cells become specified toward arterial or venous fates to generate a circulatory network that provides nutrients and oxygen to, and removes metabolic waste from, all tissues. Arterial-venous specification occurs in conjunction with suppression of endothelial cell cycle progression; however, the mechanistic role of cell cycle state is unknown. Herein, using Cdh5-CreERT2;R26FUCCI2aR reporter mice, we find that venous endothelial cells are enriched for the FUCCI-Negative state (early G1) and BMP signaling, while arterial endothelial cells are enriched for the FUCCI-Red state (late G1) and TGF-β signaling. Furthermore, early G1 state is essential for BMP4-induced venous gene expression, whereas late G1 state is essential for TGF-β1-induced arterial gene expression. Pharmacologically induced cell cycle arrest prevents arterial-venous specification defects in mice with endothelial hyperproliferation. Collectively, our results show that distinct endothelial cell cycle states provide distinct windows of opportunity for the molecular induction of arterial vs. venous fate.
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Affiliation(s)
- Nicholas W. Chavkin
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ,grid.27755.320000 0000 9136 933XRobert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Gael Genet
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Mathilde Poulet
- grid.47100.320000000419368710Department of Medicine, Yale Cardiovascular Research Center Yale University School of Medicine, New Haven, CT 06520 USA
| | - Erin D. Jeffery
- grid.27755.320000 0000 9136 933XDepartment of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Corina Marziano
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ,grid.27755.320000 0000 9136 933XRobert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Nafiisha Genet
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Hema Vasavada
- grid.47100.320000000419368710Department of Medicine, Yale Cardiovascular Research Center Yale University School of Medicine, New Haven, CT 06520 USA
| | - Elizabeth A. Nelson
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Bipul R. Acharya
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Anupreet Kour
- grid.27755.320000 0000 9136 933XRobert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Jordon Aragon
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Stephanie P. McDonnell
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Mahalia Huba
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Gloria M. Sheynkman
- grid.27755.320000 0000 9136 933XDepartment of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ,grid.27755.320000 0000 9136 933XDepartment of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ,grid.27755.320000 0000 9136 933XCenter for Public Health Genomics, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ,grid.27755.320000 0000 9136 933XUVA Comprehensive Cancer Center, University of Virginia, Charlottesville, VA 22908 USA
| | - Kenneth Walsh
- grid.27755.320000 0000 9136 933XRobert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ,grid.27755.320000 0000 9136 933XHematovascular Biology Center, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Karen K. Hirschi
- grid.27755.320000 0000 9136 933XDepartment of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ,grid.27755.320000 0000 9136 933XRobert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ,grid.47100.320000000419368710Department of Medicine, Yale Cardiovascular Research Center Yale University School of Medicine, New Haven, CT 06520 USA
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20
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Min K, Polizio AH, Kour A, Thel MC, Walsh K. Experimental ASXL1-Mediated Clonal Hematopoiesis Promotes Inflammation and Accelerates Heart Failure. J Am Heart Assoc 2022; 11:e026154. [PMID: 36129058 PMCID: PMC9673733 DOI: 10.1161/jaha.122.026154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kyung‐Duk Min
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research CenterUniversity of Virginia School of MedicineCharlottesvilleVA
| | - Ariel H. Polizio
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research CenterUniversity of Virginia School of MedicineCharlottesvilleVA
| | - Anupreet Kour
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research CenterUniversity of Virginia School of MedicineCharlottesvilleVA
| | - Mark C. Thel
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research CenterUniversity of Virginia School of MedicineCharlottesvilleVA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research CenterUniversity of Virginia School of MedicineCharlottesvilleVA
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21
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O’Meara S, D’Arcy F, Dowling C, Walsh K. The psychological impact of adverse events on urology trainees. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)00928-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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22
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Madden A, O’Connor E, O’Malley E, McLoughlin L, Durkan G, Rogers E, Walsh K, Jaffry S, D’Arcy F, Dowling C. Using CT derived measurements of sarcopenia to determine association with ventral and parastomal hernia formation post cystectomy. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)00907-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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23
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Yoshida Y, Shimizu I, Shimada A, Nakahara K, Yanagisawa S, Kubo M, Fukuda S, Ishii C, Yamamoto H, Ishikawa T, Kano K, Aoki J, Katsuumi G, Suda M, Ozaki K, Yoshida Y, Okuda S, Ohta S, Okamoto S, Minokoshi Y, Oda K, Sasaoka T, Abe M, Sakimura K, Kubota Y, Yoshimura N, Kajimura S, Zuriaga M, Walsh K, Soga T, Minamino T. Brown adipose tissue dysfunction promotes heart failure via a trimethylamine N-oxide-dependent mechanism. Sci Rep 2022; 12:14883. [PMID: 36050466 PMCID: PMC9436957 DOI: 10.1038/s41598-022-19245-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/26/2022] [Indexed: 11/14/2022] Open
Abstract
Low body temperature predicts a poor outcome in patients with heart failure, but the underlying pathological mechanisms and implications are largely unknown. Brown adipose tissue (BAT) was initially characterised as a thermogenic organ, and recent studies have suggested it plays a crucial role in maintaining systemic metabolic health. While these reports suggest a potential link between BAT and heart failure, the potential role of BAT dysfunction in heart failure has not been investigated. Here, we demonstrate that alteration of BAT function contributes to development of heart failure through disorientation in choline metabolism. Thoracic aortic constriction (TAC) or myocardial infarction (MI) reduced the thermogenic capacity of BAT in mice, leading to significant reduction of body temperature with cold exposure. BAT became hypoxic with TAC or MI, and hypoxic stress induced apoptosis of brown adipocytes. Enhancement of BAT function improved thermogenesis and cardiac function in TAC mice. Conversely, systolic function was impaired in a mouse model of genetic BAT dysfunction, in association with a low survival rate after TAC. Metabolomic analysis showed that reduced BAT thermogenesis was associated with elevation of plasma trimethylamine N-oxide (TMAO) levels. Administration of TMAO to mice led to significant reduction of phosphocreatine and ATP levels in cardiac tissue via suppression of mitochondrial complex IV activity. Genetic or pharmacological inhibition of flavin-containing monooxygenase reduced the plasma TMAO level in mice, and improved cardiac dysfunction in animals with left ventricular pressure overload. In patients with dilated cardiomyopathy, body temperature was low along with elevation of plasma choline and TMAO levels. These results suggest that maintenance of BAT homeostasis and reducing TMAO production could be potential next-generation therapies for heart failure.
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Affiliation(s)
- Yohko Yoshida
- grid.258269.20000 0004 1762 2738Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8431 Japan ,grid.258269.20000 0004 1762 2738Department of Advanced Senotherapeutics, Juntendo University Graduate School of Medicine, Tokyo, 113-8431 Japan
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8431, Japan. .,Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan.
| | - Atsuhiro Shimada
- grid.256342.40000 0004 0370 4927Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193 Japan
| | - Keita Nakahara
- grid.256342.40000 0004 0370 4927Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193 Japan
| | - Sachiko Yanagisawa
- grid.266453.00000 0001 0724 9317Graduate School of Science, University of Hyogo, Hyogo, 678-1297 Japan
| | - Minoru Kubo
- grid.266453.00000 0001 0724 9317Graduate School of Science, University of Hyogo, Hyogo, 678-1297 Japan
| | - Shinji Fukuda
- grid.26091.3c0000 0004 1936 9959Institute for Advanced Biosciences, Keio University, 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052 Japan ,grid.26999.3d0000 0001 2151 536XIntestinal Microbiota Project, Kanagawa Institute of Industrial Science and Technology, Kanagawa, 210-0821 Japan ,grid.20515.330000 0001 2369 4728Transborder Medical Research Center, University of Tsukuba, Ibaraki, 305-8575 Japan
| | - Chiharu Ishii
- grid.26091.3c0000 0004 1936 9959Institute for Advanced Biosciences, Keio University, 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052 Japan
| | - Hiromitsu Yamamoto
- grid.26091.3c0000 0004 1936 9959Institute for Advanced Biosciences, Keio University, 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052 Japan
| | - Takamasa Ishikawa
- grid.26091.3c0000 0004 1936 9959Institute for Advanced Biosciences, Keio University, 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052 Japan
| | - Kuniyuki Kano
- grid.26999.3d0000 0001 2151 536XDepartment of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033 Japan
| | - Junken Aoki
- grid.26999.3d0000 0001 2151 536XDepartment of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033 Japan
| | - Goro Katsuumi
- grid.258269.20000 0004 1762 2738Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8431 Japan
| | - Masayoshi Suda
- grid.258269.20000 0004 1762 2738Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8431 Japan
| | - Kazuyuki Ozaki
- grid.260975.f0000 0001 0671 5144Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510 Japan
| | - Yutaka Yoshida
- grid.260975.f0000 0001 0671 5144Department of Structural Pathology, Kidney Research Center, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510 Japan
| | - Shujiro Okuda
- grid.260975.f0000 0001 0671 5144Division of Bioinformatics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510 Japan
| | - Shigeo Ohta
- grid.258269.20000 0004 1762 2738Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421 Japan
| | - Shiki Okamoto
- grid.267625.20000 0001 0685 5104Second Department of Internal Medicine (Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology), Graduate School of Medicine, University of the Ryukyus, Okinawa, 903-0215 Japan
| | - Yasuhiko Minokoshi
- grid.467811.d0000 0001 2272 1771Department of Homeostatic Regulation, Division of Endocrinology and Metabolism, National Institutes of Natural Sciences, National Institute for Physiological Sciences, Aichi, 444-8585 Japan
| | - Kanako Oda
- grid.260975.f0000 0001 0671 5144Department of Comparative and Experimental Medicine, Brain Research Institute, Niigata University, Niigata, 951-8585 Japan
| | - Toshikuni Sasaoka
- grid.260975.f0000 0001 0671 5144Department of Comparative and Experimental Medicine, Brain Research Institute, Niigata University, Niigata, 951-8585 Japan
| | - Manabu Abe
- grid.260975.f0000 0001 0671 5144Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata, 951-8585 Japan ,grid.260975.f0000 0001 0671 5144Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata, 951-8585 Japan
| | - Kenji Sakimura
- grid.260975.f0000 0001 0671 5144Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata, 951-8585 Japan ,grid.260975.f0000 0001 0671 5144Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata, 951-8585 Japan
| | - Yoshiaki Kubota
- grid.26091.3c0000 0004 1936 9959Department of Anatomy, Keio University School of Medicine, Tokyo, 160-8582 Japan
| | - Norihiko Yoshimura
- grid.260975.f0000 0001 0671 5144Department of Radiology and Radiation Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510 Japan ,grid.416205.40000 0004 1764 833XDepartment of Radiology, Niigata City General Hospital, Niigata, 950-1197 Japan
| | - Shingo Kajimura
- grid.239395.70000 0000 9011 8547Division of Endocrinology, Diabetes & Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Maria Zuriaga
- grid.467824.b0000 0001 0125 7682Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Kenneth Walsh
- grid.27755.320000 0000 9136 933XDivision of Cardiovascular Medicine, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Tomoyoshi Soga
- Institute for Advanced Biosciences, Keio University, 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata, 997-0052, Japan.
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8431, Japan. .,Japan Agency for Medical Research and Development-Core Research for Evolutionary Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, 100-0004, Japan. .,Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan.
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24
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Walsh K. 130 Surgical Repair of Cleft Lip: Comparison of Neonatal and Standard Time Repair. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
Aim
Cleft lip and palate (CLP) abnormalities are the most common congenital orofacial anomalies, affecting 1 in 700 live births per year in the United Kingdom. Cleft lip is present in approximately 55% of all CLP deformities. The aim of this study is to compare standard and neonatal cleft lip repair.
Method
Advanced literature searches were carried out using Medline ALL (1946 to date) and Embase (1974 to date), 11 articles were deemed relevant and included in this study.
Results
Aesthetic results showed excellent outcomes with neonatal repair with regards to the appearance of the scar, facial (lip and nasal) symmetry but those aesthetic results are no better than those achieved at standard time.
Conclusions
Early intervention can be beneficial as early repair takes place when the cleft is less severe and when the tissues are more malleable, making the surgery less challenging and when some aspects of foetal scar healing remain. Early repair has a positive impact on the development of the alveolar projections and can assist in reducing an alveolar cleft if present, improving the aesthetic outcome. Neonatal surgery carries with it no greater risk than surgery carried out at 6 months and will allow feeding to begin at an early stage promoting recovery. Early repair also brings with it a positive psychosocial impact where infants and mothers can build a normal relationship from an early stage. Later in life, children and adults will be less self-conscious following good aesthetic repair. In conclusion, neonatal repair may be recommended over standard time repair.
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Affiliation(s)
- K Walsh
- Queen's University Belfast , Belfast , United Kingdom
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25
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Brojakowska A, Kour A, Thel MC, Park E, Bisserier M, Garikipati VNS, Hadri L, Mills PJ, Walsh K, Goukassian DA. Retrospective analysis of somatic mutations and clonal hematopoiesis in astronauts. Commun Biol 2022; 5:828. [PMID: 35978153 PMCID: PMC9385668 DOI: 10.1038/s42003-022-03777-z] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 07/27/2022] [Indexed: 11/26/2022] Open
Abstract
With planned deep space and commercial spaceflights, gaps remain to address health risks in astronauts. Multiple studies have shown associations between clonal expansion of hematopoietic cells with hematopoietic malignancies and cardiometabolic disease. This expansion of clones in the absence of overt hematopoietic disorders is termed clonal hematopoiesis (CH) of indeterminate potential (CHIP). Using deep, error-corrected, targeted DNA sequencing we assayed for somatic mutations in CH-driver genes in peripheral blood mononuclear cells isolated from de-identified blood samples collected from 14 astronauts who flew Shuttle missions between 1998-2001. We identified 34 nonsynonymous mutations of relatively low variant allele fraction in 17 CH-driver genes, with the most prevalent mutations in TP53 and DNMT3A. The presence of these small clones in the blood of relatively young astronaut cohort warrants further retrospective and prospective investigation of their clinical relevance and potential application in monitoring astronaut's health.
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Affiliation(s)
- Agnieszka Brojakowska
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Anupreet Kour
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Mark Charles Thel
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Eunbee Park
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Malik Bisserier
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Venkata Naga Srikanth Garikipati
- Dorothy M. Davis Heart Lung and Research Institute and Department of Emergency Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Lahouaria Hadri
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Paul J Mills
- Center of Excellence for Research and Training in Integrative Health, University of California San Diego, La Jolla, CA, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - David A Goukassian
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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26
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Chavkin NW, Hirschi K, GOKCE N, Walsh K. Abstract P3128: Obesogenic Diet Promotes Endothelial-to-Mesenchymal Transition In Adipose Tissue. Circ Res 2022. [DOI: 10.1161/res.131.suppl_1.p3128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Vascular dysfunction and chronic inflammation are characteristics of obesity-induced adipose tissue dysfunction. Proinflammatory cytokines can drive Endothelial-to-Mesenchymal Transition (EndoMT), where endothelial cells transition into mesenchymal-like interstitial cells that leave the vascular wall and promote tissue inflammation and fibrosis. In this study, we aimed to determine whether obesogenic diet can promote EndoMT in adipose tissue. EndoMT was assessed in 1) transgenic endothelial cell lineage-tracing mice subjected to High-Fat/High-Sucrose (HF/HS) diet, 2) available single cell RNA sequencing datasets from human obese adipose tissue, and 3) cell culture models using primary human adipose-derived endothelial cells. In lineage-tracing mice, obesogenic diet induced EndoMT in a time-dependent manner at 13, 26, and 52 weeks on HF/HS diet in both subcutaneous and visceral adipose tissue. Interestingly, rate of EndoMT was greater in visceral compared to subcutaneous adipose tissue. After 52-weeks on HF/HS diet, EndoMT cells in visceral adipose tissue upregulate inflammatory response and TGF-Beta signaling transcriptional pathways compared to endothelial cells in the same adipose tissue depot. Initiation of EndoMT was also found in single cell RNA sequencing datasets of stromal cells from human obese adipose tissue, indicated by endothelial cells in these datasets containing sub-clusters with reduced
Pecam1
and increased
Acta2
expression. Finally, the capacity for EndoMT in primary human adipose-derived endothelial cells was validated by bulk RNA sequencing after treatment with proinflammatory cytokines (TNF-Alpha, IFN-Gamma, TGF-Beta1), confirming decreased expression of endothelial cell genes and increased expression of genes associated with EndoMT, inflammatory response, and TGF-Beta signaling. Together, these clinical and experimental findings indicate that chronic obesity can promote EndoMT in adipose endothelial cells.
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Affiliation(s)
| | | | - Noyan GOKCE
- BOSTON UNIVERSITY SCHOOL MEDICNE, Boston, MA
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27
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Sano S, Horitani K, Ogawa H, Halvardson J, Chavkin NW, Wang Y, Sano M, Mattisson J, Hata A, Danielsson M, Miura-Yura E, Zaghlool A, Evans MA, Fall T, De Hoyos HN, Sundström J, Yura Y, Kour A, Arai Y, Thel MC, Arai Y, Mychaleckyj JC, Hirschi KK, Forsberg LA, Walsh K. Hematopoietic loss of Y chromosome leads to cardiac fibrosis and heart failure mortality. Science 2022; 377:292-297. [PMID: 35857592 PMCID: PMC9437978 DOI: 10.1126/science.abn3100] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hematopoietic mosaic loss of Y chromosome (mLOY) is associated with increased risk of mortality and age-related diseases in men, but the causal and mechanistic relationships have yet to be established. Here, we show that male mice reconstituted with bone marrow cells lacking the Y chromosome display increased mortality and age-related profibrotic pathologies including reduced cardiac function. Cardiac macrophages lacking the Y chromosome exhibited polarization toward a more fibrotic phenotype, and treatment with a transforming growth factor β1-neutralizing antibody ameliorated cardiac dysfunction in mLOY mice. A prospective study revealed that mLOY in blood is associated with an increased risk for cardiovascular disease and heart failure-associated mortality. Together, these results indicate that hematopoietic mLOY causally contributes to fibrosis, cardiac dysfunction, and mortality in men.
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Affiliation(s)
- Soichi Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA.,Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Keita Horitani
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Hayato Ogawa
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Jonatan Halvardson
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, 75108 Uppsala, Sweden
| | - Nicholas W Chavkin
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA.,Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Ying Wang
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Miho Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Jonas Mattisson
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, 75108 Uppsala, Sweden
| | - Atsushi Hata
- Chiba University Graduate School of Medicine, Department of General Thoracic Surgery, Chiba 260-8670, Japan
| | - Marcus Danielsson
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, 75108 Uppsala, Sweden
| | - Emiri Miura-Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Ammar Zaghlool
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, 75108 Uppsala, Sweden
| | - Megan A Evans
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Tove Fall
- Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Henry N De Hoyos
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Johan Sundström
- Department of Medical Sciences, Uppsala University, Sweden, and Uppsala Clinical Research Center, 78185 Uppsala, Sweden
| | - Yoshimitsu Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Anupreet Kour
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Yohei Arai
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Mark C Thel
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Yuka Arai
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Josyf C Mychaleckyj
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA 22908, USA
| | - Karen K Hirschi
- Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Lars A Forsberg
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, 75108 Uppsala, Sweden.,The Beijer Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
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28
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Hayashi Y, Shimizu I, Yoshida Y, Ikegami R, Suda M, Katsuumi G, Fujiki S, Ozaki K, Abe M, Sakimura K, Okuda S, Hayano T, Nakamura K, Walsh K, Jespersen NZ, Nielsen S, Scheele C, Minamino T. Coagulation factors promote brown adipose tissue dysfunction and abnormal systemic metabolism in obesity. iScience 2022; 25:104547. [PMID: 35754738 PMCID: PMC9218513 DOI: 10.1016/j.isci.2022.104547] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/11/2022] [Accepted: 06/02/2022] [Indexed: 12/31/2022] Open
Abstract
Brown adipose tissue (BAT) has a role in maintaining systemic metabolic health in rodents and humans. Here, we show that metabolic stress induces BAT to produce coagulation factors, which then-together with molecules derived from the circulation-promote BAT dysfunction and systemic glucose intolerance. When mice were fed a high-fat diet (HFD), the levels of tissue factor, coagulation Factor VII (FVII), activated coagulation Factor X (FXa), and protease-activated receptor 1 (PAR1) expression increased significantly in BAT. Genetic or pharmacological suppression of coagulation factor-PAR1 signaling in BAT ameliorated its whitening and improved thermogenic response and systemic glucose intolerance in mice with dietary obesity. Conversely, the activation of coagulation factor-PAR1 signaling in BAT caused mitochondrial dysfunction in brown adipocytes and systemic glucose intolerance in mice fed normal chow. These results indicate that BAT produces endogenous coagulation factors that mediate pleiotropic effects via PAR1 signaling under metabolic stress.
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Affiliation(s)
- Yuka Hayashi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
- Corresponding author
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
- Department of Advanced Senotherapeutics, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Ryutaro Ikegami
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
| | - Goro Katsuumi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
| | - Shinya Fujiki
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Kazuyuki Ozaki
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Manabu Abe
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Chuo-ku, Niigata 951-8585, Japan
- Department of Animal Model Development, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Chuo-ku, Niigata 951-8585, Japan
| | - Kenji Sakimura
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Chuo-ku, Niigata 951-8585, Japan
- Department of Animal Model Development, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Chuo-ku, Niigata 951-8585, Japan
| | - Shujiro Okuda
- Division of Bioinformatics, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Toshiya Hayano
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Shiga 525-8577 Japan
| | - Kazuhiro Nakamura
- Department of Integrative Physiology, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Kenneth Walsh
- Division of Cardiovascular Medicine, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Naja Zenius Jespersen
- The Centre of Inflammation and Metabolism and Centre for Physical Activity Research Rigshospitalet, Copenhagen, Denmark
| | - Søren Nielsen
- The Centre of Inflammation and Metabolism and Centre for Physical Activity Research Rigshospitalet, Copenhagen, Denmark
| | - Camilla Scheele
- The Centre of Inflammation and Metabolism and Centre for Physical Activity Research Rigshospitalet, Copenhagen, Denmark
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
- Japan Agency for Medical Research and Development-Core Research for Evolutionary Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
- Corresponding author
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29
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Yura Y, Cochran JD, Walsh K. Therapy-Related Clonal Hematopoiesis: A New Link Between Cancer and Cardiovascular Disease. Heart Fail Clin 2022; 18:349-359. [PMID: 35718411 DOI: 10.1016/j.hfc.2022.02.010] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Clonal hematopoiesis is a precancerous state that is recognized as a new causal risk factor for cardiovascular disease. Therapy-related clonal hematopoiesis is a condition that is often found in cancer survivors. These clonal expansions are caused by mutations in DNA damage-response pathway genes that allow hematopoietic stem cells to undergo positive selection in response to the genotoxic stress. These mutant cells increasingly give rise to progeny leukocytes that display enhanced proinflammatory properties. Recent experimental studies suggest that therapy-related clonal hematopoiesis may contribute to the medium- to long-term risk of genotoxic therapies on the cardiovascular system.
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Affiliation(s)
- Yoshimitsu Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, 415 Lane Road, PO Box 801394, Suite 1010, Charlottesville, VA 22908, USA; Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan.65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Jesse D Cochran
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, 415 Lane Road, PO Box 801394, Suite 1010, Charlottesville, VA 22908, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, 415 Lane Road, PO Box 801394, Suite 1010, Charlottesville, VA 22908, USA.
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30
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Andersen P, Kardong-Edgren S, Schleicher M, Koontz J, Walsh K. A Nursing Simulation Pilot Study Comparing Art-Enhanced Debriefing and Traditional Debriefing. Clin Simul Nurs 2022. [DOI: 10.1016/j.ecns.2022.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Goukassian D, Arakelyan A, Brojakowska A, Bisserier M, Hakobyan S, Hadri L, Rai AK, Evans A, Sebastian A, Truongcao M, Gonzalez C, Bajpai A, Cheng Z, Dubey PK, Addya S, Mills P, Walsh K, Kishore R, Coleman M, Garikipati VNS. Space flight associated changes in astronauts' plasma-derived small extracellular vesicle microRNA: Biomarker identification. Clin Transl Med 2022; 12:e845. [PMID: 35653543 PMCID: PMC9162436 DOI: 10.1002/ctm2.845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/07/2022] [Accepted: 04/11/2022] [Indexed: 11/24/2022] Open
Affiliation(s)
- David Goukassian
- Cardiovascular Research InstituteIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
- Center for Translational MedicineTemple University School of MedicinePhiladelphiaPennsylvaniaUSA
| | - Arsen Arakelyan
- Bioinformatics GroupInstitute of Molecular Biology, NAS RAYerevanArmenia
- Department of Bioengineering, Bioinformatics and Molecular BiologyRussian‐Armenian UniversityYerevanArmenia
| | - Agnieszka Brojakowska
- Cardiovascular Research InstituteIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Malik Bisserier
- Cardiovascular Research InstituteIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Siras Hakobyan
- Bioinformatics GroupInstitute of Molecular Biology, NAS RAYerevanArmenia
- Armenian Bioinformatics InstituteYerevanArmenia
| | - Lahouaria Hadri
- Cardiovascular Research InstituteIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Amit Kumar Rai
- Department of Emergency MedicineThe Ohio State University Wexner Medical CenterColumbusOhioUSA
| | - Angela Evans
- Department of Radiation OncologyUniversity of California DavisSacramentoCaliforniaUSA
- Lawrence Livermore National LaboratoryLivermoreCaliforniaUSA
| | - Aimy Sebastian
- Lawrence Livermore National LaboratoryLivermoreCaliforniaUSA
| | - May Truongcao
- Center for Translational MedicineTemple University School of MedicinePhiladelphiaPennsylvaniaUSA
| | - Carolina Gonzalez
- Center for Translational MedicineTemple University School of MedicinePhiladelphiaPennsylvaniaUSA
| | - Anamika Bajpai
- Center for Translational MedicineTemple University School of MedicinePhiladelphiaPennsylvaniaUSA
| | - Zhongjian Cheng
- Center for Translational MedicineTemple University School of MedicinePhiladelphiaPennsylvaniaUSA
| | - Praveen Kumar Dubey
- Department of Biomedical EngineeringThe University of Alabama at BirminghamBirminghamAlabamaUSA
| | - Sankar Addya
- Thomas Jefferson UniversityPhiladelphiaPennsylvaniaUSA
| | - Paul Mills
- Integrative Health and Mind‐Body Biomarker LaboratoryUniversity of San DiegoSan DiegoCaliforniaUSA
| | - Kenneth Walsh
- University of Virginia School of MedicineCharlottesvilleVirginiaUSA
| | - Raj Kishore
- Center for Translational MedicineTemple University School of MedicinePhiladelphiaPennsylvaniaUSA
| | - Matt Coleman
- Department of Radiation OncologyUniversity of California DavisSacramentoCaliforniaUSA
- Lawrence Livermore National LaboratoryLivermoreCaliforniaUSA
| | - Venkata Naga Srikanth Garikipati
- Department of Emergency MedicineThe Ohio State University Wexner Medical CenterColumbusOhioUSA
- Dorothy M. Davis Heart Lung and Research InstituteThe Ohio State University Wexner Medical CenterColumbusOhioUSA
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Walsh K, Raghavachari N, Kerr C, Bick AG, Cummings SR, Druley T, Dunbar CE, Genovese G, Goodell MA, Jaiswal S, Maciejewski J, Natarajan P, Shindyapina AV, Shuldiner AR, Van Den Akker EB, Vijg J. Clonal Hematopoiesis Analyses in Clinical, Epidemiologic, and Genetic Aging Studies to Unravel Underlying Mechanisms of Age-Related Dysfunction in Humans. Front Aging 2022; 3:841796. [PMID: 35821803 PMCID: PMC9261374 DOI: 10.3389/fragi.2022.841796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/07/2022] [Indexed: 11/13/2022]
Abstract
Aging is characterized by increased mortality, functional decline, and exponential increases in the incidence of diseases such as cancer, stroke, cardiovascular disease, neurological disease, respiratory disease, etc. Though the role of aging in these diseases is widely accepted and considered to be a common denominator, the underlying mechanisms are largely unknown. A significant age-related feature observed in many population cohorts is somatic mosaicism, the detectable accumulation of somatic mutations in multiple cell types and tissues, particularly those with high rates of cell turnover (e.g., skin, liver, and hematopoietic cells). Somatic mosaicism can lead to the development of cellular clones that expand with age in otherwise normal tissues. In the hematopoietic system, this phenomenon has generally been referred to as "clonal hematopoiesis of indeterminate potential" (CHIP) when it applies to a subset of clones in which mutations in driver genes of hematologic malignancies are found. Other mechanisms of clonal hematopoiesis, including large chromosomal alterations, can also give rise to clonal expansion in the absence of conventional CHIP driver gene mutations. Both types of clonal hematopoiesis (CH) have been observed in studies of animal models and humans in association with altered immune responses, increased mortality, and disease risk. Studies in murine models have found that some of these clonal events are involved in abnormal inflammatory and metabolic changes, altered DNA damage repair and epigenetic changes. Studies in long-lived individuals also show the accumulation of somatic mutations, yet at this advanced age, carriership of somatic mutations is no longer associated with an increased risk of mortality. While it remains to be elucidated what factors modify this genotype-phenotype association, i.e., compensatory germline genetics, cellular context of the mutations, protective effects to diseases at exceptional age, it points out that the exceptionally long-lived are key to understand the phenotypic consequences of CHIP mutations. Assessment of the clinical significance of somatic mutations occurring in blood cell types for age-related outcomes in human populations of varied life and health span, environmental exposures, and germline genetic risk factors will be valuable in the development of personalized strategies tailored to specific somatic mutations for healthy aging.
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Affiliation(s)
- Kenneth Walsh
- University of Virginia, Charlottesville, VA, United States
| | - Nalini Raghavachari
- National Institute on Aging, NIH, Bethesda, MD, United States,*Correspondence: Nalini Raghavachari,
| | - Candace Kerr
- National Institute on Aging, NIH, Bethesda, MD, United States
| | | | - Steven R. Cummings
- University of California, San Francisco, San Francisco, CA, United States
| | - Todd Druley
- Angle Biosciences, St. Louis, MO, United States
| | - Cynthia E. Dunbar
- National Heart, Lung and Blood Institute, NIH, Bethesda, MD, United States
| | | | | | | | | | | | | | | | | | - Jan Vijg
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, Netherlands
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Shah D, Romero F, Duong M, Wang N, Paudyal B, Suratt BT, Kallen CB, Sun J, Zhu Y, Walsh K, Summer R. Retraction Note: Obesity-induced adipokine imbalance impairs mouse pulmonary vascular endothelial function and primes the lung for injury. Sci Rep 2022; 12:2200. [PMID: 35115685 PMCID: PMC8813991 DOI: 10.1038/s41598-022-06475-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Dilip Shah
- Center for Translational Medicine and Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Freddy Romero
- Center for Translational Medicine and Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Michelle Duong
- Center for Translational Medicine and Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Nadan Wang
- Center for Translational Medicine and Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Bishnuhari Paudyal
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Benjamin T Suratt
- Department of Medicine, University of Vermont College of Medicine, Burlington, VT, 05405, USA
| | - Caleb B Kallen
- Department of Obstetrics and Gynecology, Thomas Jefferson University, Philadelphia, Pennsylvania, 19107, USA
| | - Jianxin Sun
- Center for Translational Medicine and Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Ying Zhu
- Center for Translational Medicine and Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA.,Department of Respiratory Medicine, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Kenneth Walsh
- Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, 02118, USA
| | - Ross Summer
- Center for Translational Medicine and Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA.
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Bisserier M, Saffran N, Brojakowska A, Sebastian A, Evans AC, Coleman MA, Walsh K, Mills PJ, Garikipati VNS, Arakelyan A, Hadri L, Goukassian DA. Emerging Role of Exosomal Long Non-coding RNAs in Spaceflight-Associated Risks in Astronauts. Front Genet 2022; 12:812188. [PMID: 35111205 PMCID: PMC8803151 DOI: 10.3389/fgene.2021.812188] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/21/2021] [Indexed: 12/27/2022] Open
Abstract
During spaceflight, astronauts are exposed to multiple unique environmental factors, particularly microgravity and ionizing radiation, that can cause a range of harmful health consequences. Over the past decades, increasing evidence demonstrates that the space environment can induce changes in gene expression and RNA processing. Long non-coding RNA (lncRNA) represent an emerging area of focus in molecular biology as they modulate chromatin structure and function, the transcription of neighboring genes, and affect RNA splicing, stability, and translation. They have been implicated in cancer development and associated with diverse cardiovascular conditions and associated risk factors. However, their role on astronauts' health after spaceflight remains poorly understood. In this perspective article, we provide new insights into the potential role of exosomal lncRNA after spaceflight. We analyzed the transcriptional profile of exosomes isolated from peripheral blood plasma of three astronauts who flew on various Shuttle missions between 1998-2001 by RNA-sequencing. Computational analysis of the transcriptome of these exosomes identified 27 differentially expressed lncRNAs with a Log2 fold change, with molecular, cellular, and clinical implications.
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Affiliation(s)
- Malik Bisserier
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Nathaniel Saffran
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Agnieszka Brojakowska
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Aimy Sebastian
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Angela Clare Evans
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
- Department of Radiation Oncology, University of California, Davis, Sacramento, CA, United States
| | - Matthew A. Coleman
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
- Department of Radiation Oncology, University of California, Davis, Sacramento, CA, United States
| | - Kenneth Walsh
- School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Paul J. Mills
- Center of Excellence for Research and Training in Integrative Health, University of California, San Diego, San Diego, CA, United States
| | - Venkata Naga Srikanth Garikipati
- Department of Emergency Medicine, Dorothy M. Davis Heart Lung and Research Institute, Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Arsen Arakelyan
- Bioinformatics Group, The Institute of Molecular Biology, The National Academy of Sciences of the Republic of Armenia, Yerevan, Armenia
| | - Lahouaria Hadri
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - David A. Goukassian
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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Gladyshev VN, Kritchevsky SB, Clarke SG, Cuervo AM, Fiehn O, de Magalhães JP, Mau T, Maes M, Moritz R, Niedernhofer LJ, Van Schaftingen E, Tranah GJ, Walsh K, Yura Y, Zhang B, Cummings SR. Molecular Damage in Aging. Nat Aging 2021; 1:1096-1106. [PMID: 36846190 PMCID: PMC9957516 DOI: 10.1038/s43587-021-00150-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 11/04/2021] [Indexed: 11/09/2022]
Abstract
Cellular metabolism generates molecular damage affecting all levels of biological organization. Accumulation of this damage over time is thought to play a central role in the aging process, but damage manifests in diverse molecular forms complicating its assessment. Insufficient attention has been paid to date to the role of molecular damage in aging-related phenotypes, particularly in humans, in part because of the difficulty in measuring its various forms. Recently, omics approaches have been developed that begin to address this challenge, because they are able to assess a sizeable proportion of age-related damage at the level of small molecules, proteins, RNA, DNA, organelles and cells. This review describes the concept of molecular damage in aging and discusses its diverse aspects from theoretical models to experimental approaches. Measurement of multiple types of damage enables studies of the role of damage in human aging outcomes and lays a foundation for testing interventions to reduce the burden of molecular damage, opening new approaches to slowing aging and reducing its consequences.
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Affiliation(s)
- Vadim N. Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Stephen B. Kritchevsky
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA
| | - Steven G. Clarke
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ana Maria Cuervo
- Department of Development and Molecular Biology, Albert Einstein College of Medicine, New York, NY 10461, USA
- Institute for Aging Studies, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Oliver Fiehn
- West Coast Metabolomics Center, University of California Davis, Davis, CA 95616, USA
| | - João Pedro de Magalhães
- Integrative Genomics of Ageing Group, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool L7 8TX, UK
| | - Theresa Mau
- San Francisco Coordinating Center, California Pacific Medical Center, Research Institute, San Francisco, CA 94143, USA
| | - Michal Maes
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Robert Moritz
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Laura J. Niedernhofer
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Emile Van Schaftingen
- De Duve Institute, Université catholique de Louvain, Bruxelles, Belgium
- Walloon Excellence in Life Sciences and Biotechnology (WELBIO), Université catholique de Louvain, Bruxelles, Belgium
| | - Gregory J. Tranah
- San Francisco Coordinating Center, California Pacific Medical Center, Research Institute, San Francisco, CA 94143, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine, Charlottesville, VA 22908, USA
| | - Yoshimitsu Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine, Charlottesville, VA 22908, USA
| | - Bohan Zhang
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Steven R. Cummings
- San Francisco Coordinating Center, California Pacific Medical Center, Research Institute, San Francisco, CA 94143, USA
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Walsh K, Carroll C, Scharf T, O’Donovan D. 257 POSITIVE HEALTH AND AGING FOR OLDER IRISH TRAVELLERS AND OLDER PEOPLE WHO HAVE EXPERIENCED HOMELESSNESS: LIFE-COURSE MEANINGS AND DETERMINANTS. Age Ageing 2021. [DOI: 10.1093/ageing/afab216.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Abstract
Background
The position of marginalized groups of older people remains neglected in positive health and aging (PHA) agendas, whether they concern healthy, active or positive aging. Questions exist around the meaning of such constructs, and the factors that enable disadvantaged populations to achieve equitable later-life experiences. In focusing on two such groups, this study investigates the constituent dimensions of PHA for older Irish Travellers and older people who have experienced homelessness, and the role of life-course and structural determinants in constructing PHA trajectories for these groups.
Methods
The study involves a multi-method qualitative, participatory voice-led methodology, but the analysis draws primarily on 49 in-depth life-course interviews with the populations.
Results
In addition to five interconnected dimensions of PHA, four determinants related to life-course experiences and structural factors are identified: social relations; material and accommodation circumstances; formal supports and systems; and critical transitions and resilience.
Conclusion
While illustrating the validity of PHA agendas for these groups when understood through their lived experiences, the findings highlight the significant deprivations and risks to rights that must be accounted for to secure meaningful gains in PHA for the groups.
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Affiliation(s)
- K Walsh
- Irish Centre for Social Gerontology, National University of Ireland Galway , Galway, Ireland
| | - C Carroll
- Irish Centre for Social Gerontology, National University of Ireland Galway , Galway, Ireland
| | - T Scharf
- Newcastle University , Newcastle, United Kingdom
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Hennelly N, Walsh K, Urbaniak A, O'Shea E. 187 A QUALITATIVE EXPLORATION OF PLACE AND PERSONHOOD IN DEMENTIA. Age Ageing 2021. [DOI: 10.1093/ageing/afab219.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Abstract
Background
In dementia research, supporting personhood is seen as a corner stone of person-centred care. However, little is understood about how personhood is conceptualised in the context of the home and communities that people living with dementia reside within, and how place may constitute a key dimension of, or a determining factor of someone’s sense of self. This study seeks to explore these relationships by examining the intersection between place and personhood through the lens of Rowles (1983) work on place and personal identity in old age.
Methods
Qualitative secondary analysis of datasets from two separate studies was conducted. The first study examined the perspectives of people living with dementia on place across the life course, while the second study examined the perspectives of people living with dementia on personhood in formal care. In total, 15 interviews with people with dementia were analysed using theoretical framework analysis.
Results
Participants reflected on the meaning of place, and its iterative relationship with personhood across the life course. They used the residential life course, to convey and narrate their life story, locating themselves and major events in time and place. Participants also spoke about the impact of the physical environment on their sense of personhood, conceptualising personhood in relation to attachment to the physical landscape, location and their own homes. Finally, participants referred to the close link between place, relationships, and community. In particular, how important feelings of community and belonging to place are to their sense of personhood.
Conclusion
This research shows the role of place in interpreting understandings of personhood from the perspectives of people living with dementia. This is critical for understanding the nature and orientation of community-based interventions, and designing supports and services which appropriately harness place-based relationships of people living with dementia.
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Affiliation(s)
- N Hennelly
- The Irish Longitudinal Study on Ageing, Trinity College Dublin , Dublin, Ireland
- Department of Health, The Healthy and Positive Ageing Initiative , Dublin, Ireland
| | - K Walsh
- Irish Centre for Social Gerontology, National University of Ireland Galway , Galway, Ireland
| | - A Urbaniak
- Sociology Department, University of Vienna , Vienna, Austria
| | - E O'Shea
- Centre for Economic and Social Research on Dementia, National University of Ireland Galway , Galway, Ireland
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Gabisonia K, Burjanadze G, Woitek F, Keles A, Seki M, Gorgodze N, Carlucci L, Ilchenko S, Kurishima C, Walsh K, Piontkivska H, Recchia FA, Kasumov T. Proteome dynasmics and bioinformatics reveal major alterations in the turnover rate of functionally related cardiac and plasma proteins in a dog model of congestive heart failure. J Card Fail 2021; 28:588-600. [PMID: 34785403 DOI: 10.1016/j.cardfail.2021.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 11/05/2021] [Accepted: 11/05/2021] [Indexed: 11/26/2022]
Abstract
Protein pool turnover is a critically important cellular homeostatic component, yet it has been little explored in the context of heart failure (HF) pathophysiology. We employed in vivo 2H labeling/ proteome dynamics for non-biased discovery of turnover alterations involving functionally linked cardiac and plasma proteins in canine tachypacing-induced HF, an established preclinical model of dilated cardiomyopathy. Compared to control, dogs with congestive HF displayed bidirectional turnover changes of 28 cardiac proteins, i.e. reduced half-life of several key enzymes involved in glycolysis, homocysteine metabolism and glycogenesis, and increased half-life of proteins involved in proteolysis. Changes in plasma proteins were more modest: only 5 proteins, involved in various functions including proteolysis inhibition, hemoglobin, calcium and ferric-iron binding, displayed increased or decreased turnover rates. In other dogs undergoing cardiac tachypacing, we infused for 2 weeks the myokine Follistatin-like protein 1 (FSTL1), known for its ameliorative effects on HF-induced alterations. Proteome dynamics proved very sensitive in detecting the partial or complete prevention, by FSTL1, of cardiac and plasma protein turnover alterations. In conclusion, our study unveiled, for the first time in a large mammal, numerous HF-related alterations that may serve as the basis for future mechanistic research and/or as conceptually new molecular markers.
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Key Words
- ATIC, 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase /IMP cyclohydrolase
- BNP, brain natriuretic peptide
- CLTC, Clathrin heavy chain
- CRP, Pentraxin
- CYB5R3, NADH-cytochrome b5 reductase
- DPYSL2, Dihydropyrimidinase Like 2
- FDR, false discovery rate
- FSTL1, Follistatin-like protein 1
- GAPDHS, Glyceraldehyde-3-phosphate dehydrogenase
- GYS1, Glycogen synthase
- HF, Heart failure
- HSP90, Heat shock protein 90
- HSP90AB1, Heat shock protein 90 alpha family class B member 1
- HSPA1A, Heat Shock Protein A1
- LC-MS, liquid chromatography-mass spectrometry
- LFQ, Label-free quantification
- LOC479668, Haptoglobin
- LTAH4, Leukotriene A (4) hydrolase
- LV, Left ventricle
- PCA, Principal Component Analysis
- PDHA1, Pyruvate dehydrogenase E1 component subunit alpha
- PDHB, Pyruvate dehydrogenase E1 component subunit beta
- PGM, Phosphoglucomutase 1
- PSMD2, Proteasome 26S subunit, non-ATPase 2
- STIP1, Stress induced phosphoprotein
- TF, Transferrin
- proteome dynamics, bioinformatics, cardiac disease, heart failure, List of abbreviations: ANP, atrial natriuretic peptide
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Affiliation(s)
- Khatia Gabisonia
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa; Fondazione Gabriele Monasterio, Pisa, Italy
| | - Gia Burjanadze
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa; Fondazione Gabriele Monasterio, Pisa, Italy
| | - Felix Woitek
- Heart Center Dresden-University Clinic, Technical University Dresden, Dresden, Germany
| | - Ayse Keles
- Northeast Ohio Medical University, Rootstown, OH, USA
| | - Mitsuru Seki
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Nikoloz Gorgodze
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa; Fondazione Gabriele Monasterio, Pisa, Italy
| | - Lucia Carlucci
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa; Fondazione Gabriele Monasterio, Pisa, Italy
| | - Serguei Ilchenko
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Clara Kurishima
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Helen Piontkivska
- Department of Biological Sciences and Brain Health Research Institute, Kent State University, Kent, OH, USA
| | - Fabio A Recchia
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa; Fondazione Gabriele Monasterio, Pisa, Italy; Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA.
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Bisserier M, Shanmughapriya S, Rai AK, Gonzalez C, Brojakowska A, Garikipati VNS, Madesh M, Mills PJ, Walsh K, Arakelyan A, Kishore R, Hadri L, Goukassian DA. Cell-Free Mitochondrial DNA as a Potential Biomarker for Astronauts' Health. J Am Heart Assoc 2021; 10:e022055. [PMID: 34666498 PMCID: PMC8751818 DOI: 10.1161/jaha.121.022055] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Space travel–associated stressors such as microgravity or radiation exposure have been reported in astronauts after short‐ and long‐duration missions aboard the International Space Station. Despite risk mitigation strategies, adverse health effects remain a concern. Thus, there is a need to develop new diagnostic tools to facilitate early detection of physiological stress. Methods and Results We measured the levels of circulating cell‐free mitochondrial DNA in blood plasma of 14 astronauts 10 days before launch, the day of landing, and 3 days after return. Our results revealed a significant increase of cell‐free mitochondrial DNA in the plasma on the day of landing and 3 days after return with vast ~2 to 355‐fold interastronaut variability. In addition, gene expression analysis of peripheral blood mononuclear cells revealed a significant increase in markers of inflammation, oxidative stress, and DNA damage. Conclusions Our study suggests that cell‐free mitochondrial DNA abundance might be a biomarker of stress or immune response related to microgravity, radiation, and other environmental factors during space flight.
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Affiliation(s)
- Malik Bisserier
- Cardiovascular Research Institute Icahn School of Medicine at Mount Sinai New York NY
| | - Santhanam Shanmughapriya
- Department of Cellular and Molecular Physiology Heart and Vascular Institute PennState University Hershey PA
| | - Amit Kumar Rai
- Department of Emergency Medicine Dorothy M. Davis Heart Lung and Research InstituteOhio State University Wexner Medical Center Columbus OH
| | - Carolina Gonzalez
- Center for Precision Medicine University of Texas Health San Antonio San Antonio TX
| | - Agnieszka Brojakowska
- Cardiovascular Research Institute Icahn School of Medicine at Mount Sinai New York NY
| | - Venkata Naga Srikanth Garikipati
- Department of Emergency Medicine Dorothy M. Davis Heart Lung and Research InstituteOhio State University Wexner Medical Center Columbus OH
| | - Muniswamy Madesh
- Center for Precision Medicine University of Texas Health San Antonio San Antonio TX
| | - Paul J Mills
- Center of Excellence for Research and Training in Integrative Health University of California San Diego La Jolla CA
| | - Kenneth Walsh
- Robert M. Berne Cardiovascular Research Center University of Virginia Charlottesville VA
| | - Arsen Arakelyan
- Bioinformatics Group The Institute of Molecular Biology The National Academy of Sciences of the Republic of Armenia Yerevan Armenia
| | - Raj Kishore
- Center for Translation Medicine Temple University Philadelphia PA
| | - Lahouaria Hadri
- Cardiovascular Research Institute Icahn School of Medicine at Mount Sinai New York NY
| | - David A Goukassian
- Cardiovascular Research Institute Icahn School of Medicine at Mount Sinai New York NY
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40
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Lonsdale H, Walsh K. The toxic cutaneous effects of Gamma Butyrolactone (GBL). Burns 2021; 47:1939. [PMID: 34711452 DOI: 10.1016/j.burns.2021.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 11/19/2022]
Affiliation(s)
- H Lonsdale
- Department of Burns and Plastic Surgery, Manchester University NHS Foundation Trust, Wythenshawe Hospital, Southmoor Road, Wythenshawe, Manchester, M23 9LT, United Kingdom.
| | - K Walsh
- Department of Burns and Plastic Surgery, Manchester University NHS Foundation Trust, Wythenshawe Hospital, Southmoor Road, Wythenshawe, Manchester, M23 9LT, United Kingdom
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41
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Chavkin NW, Cain S, Walsh K, Hirschi KK. Isolation of Murine Retinal Endothelial Cells for Next-Generation Sequencing. J Vis Exp 2021. [PMID: 34694293 DOI: 10.3791/63133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Recent improvements in next-generation sequencing have advanced researchers' knowledge of molecular and cellular biology, with several studies revealing novel paradigms in vascular biology. Applying these methods to models of vascular development requires the optimization of cell isolation techniques from embryonic and postnatal tissues. Cell yield, viability, and purity all need to be maximal to obtain accurate and reproducible results from next-generation sequencing approaches. The neonatal mouse retinal vascularization model is used by researchers to study mechanisms of vascular development. Researchers have used this model to investigate mechanisms of angiogenesis and arterial-venous fate specification during blood vessel formation and maturation. Applying next-generation sequencing techniques to study the retinal vascular development model requires optimization of a method for the isolation of retinal endothelial cells that maximizes cell yield, viability, and purity. This protocol describes a method for murine retinal tissue isolation, digestion, and purification using fluorescence-activated cell sorting (FACS). The results indicate that the FACS-purified CD31+/CD45- endothelial cell population is highly enriched for endothelial cell gene expression and exhibits no change in viability for 60 min post-FACS. Included are representative results of next-generation sequencing approaches on endothelial cells isolated using this method, including bulk RNA sequencing and single-cell RNA sequencing, demonstrating that this method for retinal endothelial cell isolation is compatible with next-generation sequencing applications. This method of retinal endothelial cell isolation will allow for advanced sequencing techniques to reveal novel mechanisms of vascular development.
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Affiliation(s)
- Nicholas W Chavkin
- Department of Cell Biology, University of Virginia School of Medicine; Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine;
| | - Shelby Cain
- Department of Cell Biology, University of Virginia School of Medicine
| | - Kenneth Walsh
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine; Department of Cardiology, University of Virginia School of Medicine; Hematovascular Biology Center, University of Virginia School of Medicine
| | - Karen K Hirschi
- Department of Cell Biology, University of Virginia School of Medicine; Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine; Hematovascular Biology Center, University of Virginia School of Medicine; Yale Cardiovascular Research Center, Yale University School of Medicine
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Chavkin N, Sano S, Walsh K. Abstract MP258: The Cell Surface Receptors Ror1/2 Control Cardiac Myofibroblast Differentiation. Circ Res 2021. [DOI: 10.1161/res.129.suppl_1.mp258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
A hallmark of heart failure is cardiac fibrosis, which results from the injury-induced differentiation response of resident fibroblasts to myofibroblasts that deposit extracellular matrix. During myofibroblast differentiation, fibroblasts progress through polarization stages of early pro-inflammation, intermediate proliferation, and late maturation, but the regulators of this progression are poorly understood. Planar cell polarity receptors, receptor tyrosine kinase like orphan receptor 1 and 2 (Ror1/2), can function to promote cell differentiation and transformation. In this study, we investigated the role of the Ror1/2 in a model of heart failure with emphasis on myofibroblast differentiation.
Methods and Results:
The role of Ror1/2 during cardiac myofibroblast differentiation was studied in cell culture models of primary murine cardiac fibroblast activation and in knockout mouse models that underwent transverse aortic constriction (TAC) surgery to induce cardiac injury by pressure overload. Expression of Ror1 and Ror2 were robustly and exclusively induced in fibroblasts in hearts after TAC surgery, and both were rapidly upregulated after early activation of primary murine cardiac fibroblasts in culture. Cultured fibroblasts isolated from Ror1/2-KO mice displayed a pro-inflammatory phenotype indicative of impaired myofibroblast differentiation. Although the combined ablation of Ror1/2 in mice did not result in a detectable baseline phenotype, TAC surgery led to the death of all mice by day 6 that was associated with myocardial hyper-inflammation and vascular leakage.
Conclusions:
Together, these results show that Ror1/2 are essential for the progression of myofibroblast differentiation and for the adaptive remodeling of the heart in response to pressure overload.
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Yura Y, Miura-Yura E, Katanasaka Y, Min KD, Chavkin N, Polizio AH, Ogawa H, Horitani K, Doviak H, Evans MA, Sano M, Wang Y, Boroviak K, Philippos G, Domingues AF, Vassiliou G, Sano S, Walsh K. The Cancer Therapy-Related Clonal Hematopoiesis Driver Gene Ppm1d Promotes Inflammation and Non-Ischemic Heart Failure in Mice. Circ Res 2021; 129:684-698. [PMID: 34315245 PMCID: PMC8409899 DOI: 10.1161/circresaha.121.319314] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/20/2021] [Accepted: 07/26/2021] [Indexed: 12/19/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Yoshimitsu Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Emiri Miura-Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Yasufumi Katanasaka
- Now with Division of Molecular Medicine, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Yada, Japan (Y.K.)
| | - Kyung-Duk Min
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Nicholas Chavkin
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Ariel H. Polizio
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Hayato Ogawa
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Keita Horitani
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Heather Doviak
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Megan A. Evans
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Miho Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
| | - Ying Wang
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Chongqing, China (Y.W.)
| | - Katharina Boroviak
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, United Kingdom (K.B., G.P., G.V., A.F.D.)
| | - George Philippos
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, United Kingdom (K.B., G.P., G.V., A.F.D.)
- Interfaculty Institute of Cell Biology, Eberhard Karls University of Tübingen, Germany (G.P.)
- Wellcome-MRC Cambridge Stem Cell Institute, Department of Haematology, University of Cambridge, United Kingdom (A.F.D., G.V., G.P.)
- Now with German Cancer Research Center (DKFZ), Heidelberg, Germany and Ruprecht Karl University of Heidelberg, Heidelberg, Germany (G.P.)
| | - Ana Filipa Domingues
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, United Kingdom (K.B., G.P., G.V., A.F.D.)
- Wellcome-MRC Cambridge Stem Cell Institute, Department of Haematology, University of Cambridge, United Kingdom (A.F.D., G.V., G.P.)
| | - George Vassiliou
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, United Kingdom (K.B., G.P., G.V., A.F.D.)
- Wellcome-MRC Cambridge Stem Cell Institute, Department of Haematology, University of Cambridge, United Kingdom (A.F.D., G.V., G.P.)
| | - Soichi Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
- Now with Department of Cardiology, Osaka City University Graduate School of Medicine, Japan (S.S.)
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA (Y.Y., E.M.-Y., K.-D.M., N.C., A.H.P., H.O., K.H., H.D., M.A.E., M.S., Y.W., S.S., K.W.)
- Now with Division of Molecular Medicine, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Yada, Japan (Y.K.)
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Chongqing, China (Y.W.)
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, United Kingdom (K.B., G.P., G.V., A.F.D.)
- Interfaculty Institute of Cell Biology, Eberhard Karls University of Tübingen, Germany (G.P.)
- Wellcome-MRC Cambridge Stem Cell Institute, Department of Haematology, University of Cambridge, United Kingdom (A.F.D., G.V., G.P.)
- Now with Department of Cardiology, Osaka City University Graduate School of Medicine, Japan (S.S.)
- Now with German Cancer Research Center (DKFZ), Heidelberg, Germany and Ruprecht Karl University of Heidelberg, Heidelberg, Germany (G.P.)
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Bella S, Walsh B, Flannery A, Fiesseler F, Walsh K. 98 Social Stressors and Isolation Have Biggest Effect on Resident Wellness During a Pandemic. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.07.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sano S, Wang Y, Ogawa H, Horitani K, Sano M, Polizio AH, Kour A, Yura Y, Doviak H, Walsh K. TP53-mediated therapy-related clonal hematopoiesis contributes to doxorubicin-induced cardiomyopathy by augmenting a neutrophil-mediated cytotoxic response. JCI Insight 2021; 6:e146076. [PMID: 34236050 PMCID: PMC8410064 DOI: 10.1172/jci.insight.146076] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 05/13/2021] [Indexed: 12/27/2022] Open
Abstract
Therapy-related clonal hematopoiesis (t-CH) is often observed in cancer survivors. This form of clonal hematopoiesis typically involves somatic mutations in driver genes that encode components of the DNA damage response and confer hematopoietic stem and progenitor cells (HSPCs) with resistance to the genotoxic stress of the cancer therapy. Here, we established a model of TP53-mediated t-CH through the transfer of Trp53 mutant HSPCs to mice, followed by treatment with a course of the chemotherapeutic agent doxorubicin. These studies revealed that neutrophil infiltration in the heart significantly contributes to doxorubicin-induced cardiac toxicity and that this condition is amplified in the model of Trp53-mediated t-CH. These data suggest that t-CH could contribute to the elevated heart failure risk that occurs in cancer survivors who have been treated with genotoxic agents.
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Affiliation(s)
- Soichi Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA.,Department of Cardiology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Ying Wang
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Hayato Ogawa
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Keita Horitani
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Miho Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Ariel H Polizio
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Anupreet Kour
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Yoshimitsu Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Heather Doviak
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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Chavkin NW, Sano S, Wang Y, Oshima K, Ogawa H, Horitani K, Sano M, MacLauchlan S, Nelson A, Setia K, Vippa T, Watanabe Y, Saucerman JJ, Hirschi KK, Gokce N, Walsh K. The Cell Surface Receptors Ror1/2 Control Cardiac Myofibroblast Differentiation. J Am Heart Assoc 2021; 10:e019904. [PMID: 34155901 PMCID: PMC8403294 DOI: 10.1161/jaha.120.019904] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/22/2021] [Indexed: 12/25/2022]
Abstract
Background A hallmark of heart failure is cardiac fibrosis, which results from the injury-induced differentiation response of resident fibroblasts to myofibroblasts that deposit extracellular matrix. During myofibroblast differentiation, fibroblasts progress through polarization stages of early proinflammation, intermediate proliferation, and late maturation, but the regulators of this progression are poorly understood. Planar cell polarity receptors, receptor tyrosine kinase-like orphan receptor 1 and 2 (Ror1/2), can function to promote cell differentiation and transformation. In this study, we investigated the role of the Ror1/2 in a model of heart failure with emphasis on myofibroblast differentiation. Methods and Results The role of Ror1/2 during cardiac myofibroblast differentiation was studied in cell culture models of primary murine cardiac fibroblast activation and in knockout mouse models that underwent transverse aortic constriction surgery to induce cardiac injury by pressure overload. Expression of Ror1 and Ror2 were robustly and exclusively induced in fibroblasts in hearts after transverse aortic constriction surgery, and both were rapidly upregulated after early activation of primary murine cardiac fibroblasts in culture. Cultured fibroblasts isolated from Ror1/2 knockout mice displayed a proinflammatory phenotype indicative of impaired myofibroblast differentiation. Although the combined ablation of Ror1/2 in mice did not result in a detectable baseline phenotype, transverse aortic constriction surgery led to the death of all mice by day 6 that was associated with myocardial hyperinflammation and vascular leakage. Conclusions Together, these results show that Ror1/2 are essential for the progression of myofibroblast differentiation and for the adaptive remodeling of the heart in response to pressure overload.
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Affiliation(s)
- Nicholas W. Chavkin
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Department of Cell BiologySchool of MedicineUniversity of VirginiaCharlottesvilleVA
| | - Soichi Sano
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Hematovascular Biology CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Molecular Cardiology/Whitaker Cardiovascular InstituteBoston University School of MedicineBostonMA
- Department of CardiologyGraduate School of MedicineOsaka City UniversityOsakaJapan
- Department of CardiologySchool of MedicineUniversity of VirginiaCharlottesvilleVA
| | - Ying Wang
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Hematovascular Biology CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Molecular Cardiology/Whitaker Cardiovascular InstituteBoston University School of MedicineBostonMA
- Department of CardiologyXinqiao HospitalArmy Medical UniversityChongqingChina
| | - Kosei Oshima
- Molecular Cardiology/Whitaker Cardiovascular InstituteBoston University School of MedicineBostonMA
| | - Hayato Ogawa
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Department of CardiologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Keita Horitani
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Department of CardiologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Miho Sano
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Molecular Cardiology/Whitaker Cardiovascular InstituteBoston University School of MedicineBostonMA
- Department of CardiologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Susan MacLauchlan
- Molecular Cardiology/Whitaker Cardiovascular InstituteBoston University School of MedicineBostonMA
| | - Anders Nelson
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Department of PharmacologyUniversity of VirginiaCharlottesvilleVA
| | - Karishma Setia
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
| | - Tanvi Vippa
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
| | - Yosuke Watanabe
- Vascular Biology/Whitaker Cardiovascular InstituteBoston University School of MedicineBostonMA
| | - Jeffrey J. Saucerman
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Department of Biomedical EngineeringUniversity of VirginiaCharlottesvilleVA
| | - Karen K. Hirschi
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Department of Cell BiologySchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Hematovascular Biology CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Cardiovascular Research CenterSchool of MedicineYale UniversityNew HavenCT
| | - Noyan Gokce
- Boston University School of MedicineBostonMA
| | - Kenneth Walsh
- Cardiovascular Research CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Hematovascular Biology CenterSchool of MedicineUniversity of VirginiaCharlottesvilleVA
- Molecular Cardiology/Whitaker Cardiovascular InstituteBoston University School of MedicineBostonMA
- Department of CardiologySchool of MedicineUniversity of VirginiaCharlottesvilleVA
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Wang Y, Sano S, Ogawa H, Horitani K, Evans MA, Yura Y, Miura-Yura E, Doviak H, Walsh K. Murine models of clonal hematopoiesis to assess mechanisms of cardiovascular disease. Cardiovasc Res 2021; 118:1413-1432. [PMID: 34164655 DOI: 10.1093/cvr/cvab215] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 06/21/2021] [Indexed: 12/24/2022] Open
Abstract
Clonal hematopoiesis (CH) is a phenomenon whereby somatic mutations confer a fitness advantage to hematopoietic stem and progenitor cells (HSPC) and thus facilitate their aberrant clonal expansion. These mutations are carried into progeny leukocytes leading to a situation whereby a substantial fraction of an individual's blood cells originate from the HSPC mutant clone. Although this condition rarely progresses to a hematological malignancy, circulating blood cells bearing the mutation have the potential to affect other organ systems as they infiltrate into tissues under both homeostatic and disease conditions. Epidemiological and clinical studies have revealed that CH is highly prevalent in the elderly and is associated with an increased risk of cardiovascular disease and mortality. Recent experimental studies in murine models have assessed the most commonly mutated "driver" genes associated with CH, and have provided evidence for mechanistic connections between CH and cardiovascular disease. A deeper understanding of the mechanisms by which specific CH mutations promote disease pathogenesis is of importance, as it could pave the way for individualized therapeutic strategies targeting the pathogenic CH gene mutations in the future. Here, we review the epidemiology of CH and the mechanistic work from studies using murine disease models, with a particular focus on the strengths and limitations of these experimental systems. We intend for this review to help investigators select the most appropriate models to study CH in the setting of cardiovascular disease.
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Affiliation(s)
- Ying Wang
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA.,Department of Cardiology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Soichi Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA.,Department of Cardiology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Hayato Ogawa
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Keita Horitani
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Megan A Evans
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Yoshimitsu Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Emiri Miura-Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Heather Doviak
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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Affiliation(s)
- Soichi Sano
- Department of Cardiology, Osaka City University Graduate School of Medicine, Osaka 558-8585, Japan
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M, Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
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49
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Abstract
Abstract
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Affiliation(s)
- Megan A Evans
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, 415 Lane Road, Charlottesville, VA 22908, USA
| | - Soichi Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, 415 Lane Road, Charlottesville, VA 22908, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, 415 Lane Road, Charlottesville, VA 22908, USA
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Park E, Evans MA, Doviak H, Horitani K, Ogawa H, Yura Y, Wang Y, Sano S, Walsh K. Bone Marrow Transplantation Procedures in Mice to Study Clonal Hematopoiesis. J Vis Exp 2021:10.3791/61875. [PMID: 34125083 PMCID: PMC8439117 DOI: 10.3791/61875] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Clonal hematopoiesis is a prevalent age-associated condition that results from the accumulation of somatic mutations in hematopoietic stem and progenitor cells (HSPCs). Mutations in driver genes, that confer cellular fitness, can lead to the development of expanding HSPC clones that increasingly give rise to progeny leukocytes harboring the somatic mutation. Because clonal hematopoiesis has been associated with heart disease, stroke, and mortality, the development of experimental systems that model these processes is key to understanding the mechanisms that underly this new risk factor. Bone marrow transplantation procedures involving myeloablative conditioning in mice, such as total-body irradiation (TBI), are commonly employed to study the role of immune cells in cardiovascular diseases. However, simultaneous damage to the bone marrow niche and other sites of interest, such as the heart and brain, is unavoidable with these procedures. Thus, our lab has developed two alternative methods to minimize or avoid possible side effects caused by TBI: 1) bone marrow transplantation with irradiation shielding and 2) adoptive BMT to non-conditioned mice. In shielded organs, the local environment is preserved allowing for the analysis of clonal hematopoiesis while the function of resident immune cells is unperturbed. In contrast, the adoptive BMT to non-conditioned mice has the additional advantage that both the local environments of the organs and the hematopoietic niche are preserved. Here, we compare three different hematopoietic cell reconstitution approaches and discuss their strengths and limitations for studies of clonal hematopoiesis in cardiovascular disease.
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Affiliation(s)
- Eunbee Park
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine
| | - Megan A Evans
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine
| | - Heather Doviak
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine
| | - Keita Horitani
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine
| | - Hayato Ogawa
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine
| | - Yoshimitsu Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine
| | - Ying Wang
- Department of Cardiology, Xinqiao Hospital, Army Medical University
| | - Soichi Sano
- Department of Cardiology, Osaka City University Graduate School of Medicine; Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine
| | - Kenneth Walsh
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine; Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine;
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