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DeFreitas MJ, Shelton EL, Schmidt AF, Ballengee S, Tian R, Chen P, Sharma M, Levine A, Katz ED, Rojas C, Abitbol CL, Hunter J, Kulandavelu S, Wu S, Young KC, Benny M. Neonatal hyperoxia exposure leads to developmental programming of cardiovascular and renal disease in adult rats. Sci Rep 2024; 14:16742. [PMID: 39033222 PMCID: PMC11271593 DOI: 10.1038/s41598-024-65844-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 06/25/2024] [Indexed: 07/23/2024] Open
Abstract
Premature infants are often exposed to hyperoxia. However, there is limited data regarding the mechanistic underpinnings linking neonatal hyperoxia exposure and its contribution to cardio-renal dysfunction in adults born preterm. Our objective was to determine whether neonatal hyperoxia induces systemic vascular stiffness and cardio-renal dysfunction in adulthood. Newborn rats were randomly assigned to room air (RA) or hyperoxia (85% O2) from postnatal day 1 to 14, then recovered in RA until 1 year of life. Arterial stiffness, cardio-renal histomorphometry, and fibrosis in the aorta, heart, and kidney were assessed. RNA-sequencing (RNA-seq) of the aorta and kidney was also done. Adult rats exposed to neonatal hyperoxia had increased aortic and mesenteric artery stiffness as demonstrated by wire and pressure myography. They also had cardiomyocyte hypertrophy, glomerulomegaly, and tubular injury. Hyperoxia exposure altered the transcriptome profile associated with fibrosis and matrix remodeling in the aorta and kidney. There was also increased TGF-β1 levels and fibrosis in the aorta, left ventricle, and kidney. In conclusion, neonatal hyperoxia exposure was associated with systemic vascular and cardio-renal alterations in 1-year-old rats. Further studies to determine how targeted therapies could reprogram cardio-renal injury after neonatal hyperoxia exposure are indicated.
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Affiliation(s)
- Marissa J DeFreitas
- Department of Pediatrics/Division of Nephrology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Elaine L Shelton
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Augusto F Schmidt
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA
| | - Sydne Ballengee
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA
| | - Runxia Tian
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA
| | - PingPing Chen
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA
| | - Mayank Sharma
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA
| | - Amanda Levine
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA
| | - Emily Davidovic Katz
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA
| | - Claudia Rojas
- Department of Pathology, Memorial Healthcare Systems, Hollywood, FL, USA
| | - Carolyn L Abitbol
- Department of Pediatrics/Division of Nephrology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Juanita Hunter
- Department of Pediatrics/Division of Cardiology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Shathiyah Kulandavelu
- Department of Pediatrics/Division of Nephrology, University of Miami Miller School of Medicine, Miami, FL, USA
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Shu Wu
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA
| | - Karen C Young
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA
| | - Merline Benny
- Department of Pediatrics/Division of Neonatology, Batchelor Children's Research Institute, Miller School of Medicine, University of Miami, P.O. Box 016960 (R-131), Miami, FL, 33101, USA.
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Kwartler CS, Pinelo JEE. Use of iPSC-Derived Smooth Muscle Cells to Model Physiology and Pathology. Arterioscler Thromb Vasc Biol 2024; 44:1523-1536. [PMID: 38695171 PMCID: PMC11209779 DOI: 10.1161/atvbaha.123.319703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
The implementation of human induced pluripotent stem cell (hiPSC) models has introduced an additional tool for identifying molecular mechanisms of disease that complement animal models. Patient-derived or CRISPR/Cas9-edited induced pluripotent stem cells differentiated into smooth muscle cells (SMCs) have been leveraged to discover novel mechanisms, screen potential therapeutic strategies, and model in vivo development. The field has evolved over almost 15 years of research using hiPSC-SMCs and has made significant strides toward overcoming initial challenges such as the lineage specificity of SMC phenotypes. However, challenges both specific (eg, the lack of specific markers to thoroughly validate hiPSC-SMCs) and general (eg, a lack of transparency and consensus around methodology in the field) remain. In this review, we highlight the recent successes and remaining challenges of the hiPSC-SMC model.
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Affiliation(s)
- Callie S. Kwartler
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Jose Emiliano Esparza Pinelo
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
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3
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de Wagenaar NP, van den Bersselaar LM, Odijk HJHM, Stefens SJM, Reinhardt DP, Roos-Hesselink JW, Kanaar R, Verhagen JMA, Brüggenwirth HT, van de Laar IMBH, van der Pluijm I, Essers J. Functional analysis of cell lines derived from SMAD3-related Loeys-Dietz syndrome patients provides insights into genotype-phenotype relation. Hum Mol Genet 2024; 33:1090-1104. [PMID: 38538566 PMCID: PMC11153339 DOI: 10.1093/hmg/ddae044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/23/2024] [Accepted: 03/06/2024] [Indexed: 06/07/2024] Open
Abstract
RATIONALE Pathogenic (P)/likely pathogenic (LP) SMAD3 variants cause Loeys-Dietz syndrome type 3 (LDS3), which is characterized by arterial aneurysms, dissections and tortuosity throughout the vascular system combined with osteoarthritis. OBJECTIVES Investigate the impact of P/LP SMAD3 variants with functional tests on patient-derived fibroblasts and vascular smooth muscle cells (VSMCs), to optimize interpretation of SMAD3 variants. METHODS A retrospective analysis on clinical data from individuals with a P/LP SMAD3 variant and functional analyses on SMAD3 patient-derived VSMCs and SMAD3 patient-derived fibroblasts, differentiated into myofibroblasts. RESULTS Individuals with dominant negative (DN) SMAD3 variant in the MH2 domain exhibited more major events (66.7% vs. 44.0%, P = 0.054), occurring at a younger age compared to those with haploinsufficient (HI) variants. The age at first major event was 35.0 years [IQR 29.0-47.0] in individuals with DN variants in MH2, compared to 46.0 years [IQR 40.0-54.0] in those with HI variants (P = 0.065). Fibroblasts carrying DN SMAD3 variants displayed reduced differentiation potential, contrasting with increased differentiation potential in HI SMAD3 variant fibroblasts. HI SMAD3 variant VSMCs showed elevated SMA expression and altered expression of alternative MYH11 isoforms. DN SMAD3 variant myofibroblasts demonstrated reduced extracellular matrix formation compared to control cell lines. CONCLUSION Distinguishing between P/LP HI and DN SMAD3 variants can be achieved by assessing differentiation potential, and SMA and MYH11 expression. The differences between DN and HI SMAD3 variant fibroblasts and VSMCs potentially contribute to the differences in disease manifestation. Notably, myofibroblast differentiation seems a suitable alternative in vitro test system compared to VSMCs.
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Affiliation(s)
- Nathalie P de Wagenaar
- Department of Molecular Genetics, Oncode Institute, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
- Department of Cardiology and European Reference Network for Rare Multisystemic Vascular Disease (VASCERN), HTAD Rare Disease Working Group, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Lisa M van den Bersselaar
- Department of Clinical Genetics and European Reference Network for Rare Multisystemic Vascular Disease (VASCERN), HTAD Rare Disease Working Group, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Hanny J H M Odijk
- Department of Molecular Genetics, Oncode Institute, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Sanne J M Stefens
- Department of Molecular Genetics, Oncode Institute, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Dieter P Reinhardt
- Faculty of Medicine and Health Sciences, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada
| | - Jolien W Roos-Hesselink
- Department of Cardiology and European Reference Network for Rare Multisystemic Vascular Disease (VASCERN), HTAD Rare Disease Working Group, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Roland Kanaar
- Department of Molecular Genetics, Oncode Institute, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Judith M A Verhagen
- Department of Clinical Genetics and European Reference Network for Rare Multisystemic Vascular Disease (VASCERN), HTAD Rare Disease Working Group, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Hennie T Brüggenwirth
- Department of Clinical Genetics and European Reference Network for Rare Multisystemic Vascular Disease (VASCERN), HTAD Rare Disease Working Group, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Ingrid M B H van de Laar
- Department of Clinical Genetics and European Reference Network for Rare Multisystemic Vascular Disease (VASCERN), HTAD Rare Disease Working Group, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Ingrid van der Pluijm
- Department of Molecular Genetics, Oncode Institute, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
- Department of Vascular Surgery, Cardiovascular Institute, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Jeroen Essers
- Department of Molecular Genetics, Oncode Institute, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
- Department of Vascular Surgery, Cardiovascular Institute, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
- Department of Radiotherapy, Erasmus MC, University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
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Domagała D, Data K, Szyller H, Farzaneh M, Mozdziak P, Woźniak S, Zabel M, Dzięgiel P, Kempisty B. Cellular, Molecular and Clinical Aspects of Aortic Aneurysm-Vascular Physiology and Pathophysiology. Cells 2024; 13:274. [PMID: 38334666 PMCID: PMC10854611 DOI: 10.3390/cells13030274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/10/2024] Open
Abstract
A disturbance of the structure of the aortic wall results in the formation of aortic aneurysm, which is characterized by a significant bulge on the vessel surface that may have consequences, such as distention and finally rupture. Abdominal aortic aneurysm (AAA) is a major pathological condition because it affects approximately 8% of elderly men and 1.5% of elderly women. The pathogenesis of AAA involves multiple interlocking mechanisms, including inflammation, immune cell activation, protein degradation and cellular malalignments. The expression of inflammatory factors, such as cytokines and chemokines, induce the infiltration of inflammatory cells into the wall of the aorta, including macrophages, natural killer cells (NK cells) and T and B lymphocytes. Protein degradation occurs with a high expression not only of matrix metalloproteinases (MMPs) but also of neutrophil gelatinase-associated lipocalin (NGAL), interferon gamma (IFN-γ) and chymases. The loss of extracellular matrix (ECM) due to cell apoptosis and phenotype switching reduces tissue density and may contribute to AAA. It is important to consider the key mechanisms of initiating and promoting AAA to achieve better preventative and therapeutic outcomes.
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Affiliation(s)
- Dominika Domagała
- Division of Anatomy, Department of Human Morphology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland; (D.D.); (K.D.); (H.S.); (S.W.)
| | - Krzysztof Data
- Division of Anatomy, Department of Human Morphology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland; (D.D.); (K.D.); (H.S.); (S.W.)
| | - Hubert Szyller
- Division of Anatomy, Department of Human Morphology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland; (D.D.); (K.D.); (H.S.); (S.W.)
| | - Maryam Farzaneh
- Fertility, Infertility and Perinatology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran;
| | - Paul Mozdziak
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27607, USA;
- Physiology Graduate Faculty, North Carolina State University, Raleigh, NC 27613, USA
| | - Sławomir Woźniak
- Division of Anatomy, Department of Human Morphology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland; (D.D.); (K.D.); (H.S.); (S.W.)
| | - Maciej Zabel
- Division of Histology and Embryology, Department of Human Morphology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland; (M.Z.); (P.D.)
- Division of Anatomy and Histology, University of Zielona Góra, 65-046 Zielona Góra, Poland
| | - Piotr Dzięgiel
- Division of Histology and Embryology, Department of Human Morphology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland; (M.Z.); (P.D.)
- Department of Physiotherapy, University School of Physical Education, 51-612 Wroclaw, Poland
| | - Bartosz Kempisty
- Division of Anatomy, Department of Human Morphology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland; (D.D.); (K.D.); (H.S.); (S.W.)
- Physiology Graduate Faculty, North Carolina State University, Raleigh, NC 27613, USA
- Institute of Veterinary Medicine, Nicolaus Copernicus University, 87-100 Torun, Poland
- Department of Obstetrics and Gynecology, University Hospital and Masaryk University, 602 00 Brno, Czech Republic
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5
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Eley L, Richardson RV, Alqahtani A, Chaudhry B, Henderson DJ. eNOS plays essential roles in the developing heart and aorta linked to disruption of Notch signalling. Dis Model Mech 2024; 17:dmm050265. [PMID: 38111957 PMCID: PMC10846539 DOI: 10.1242/dmm.050265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023] Open
Abstract
eNOS (NOS3) is the enzyme that generates nitric oxide, a signalling molecule and regulator of vascular tone. Loss of eNOS function is associated with increased susceptibility to atherosclerosis, hypertension, thrombosis and stroke. Aortopathy and cardiac hypertrophy have also been found in eNOS null mice, but their aetiology is unclear. We evaluated eNOS nulls before and around birth for cardiac defects, revealing severe abnormalities in the ventricular myocardium and pharyngeal arch arteries. Moreover, in the aortic arch, there were fewer baroreceptors, which sense changes in blood pressure. Adult eNOS null survivors showed evidence of cardiac hypertrophy, aortopathy and cartilaginous metaplasia in the periductal region of the aortic arch. Notch1 and neuregulin were dysregulated in the forming pharyngeal arch arteries and ventricles, suggesting that these pathways may be relevant to the defects observed. Dysregulation of eNOS leads to embryonic and perinatal death, suggesting mutations in eNOS are candidates for causing congenital heart defects in humans. Surviving eNOS mutants have a deficiency of baroreceptors that likely contributes to high blood pressure and may have relevance to human patients who suffer from hypertension associated with aortic arch abnormalities.
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Affiliation(s)
- Lorraine Eley
- Bioscience Institute, Newcastle University, Centre for Life, Central Parkway, Newcastle upon Tyne, NE1 3BZ, UK
| | - Rachel V. Richardson
- Bioscience Institute, Newcastle University, Centre for Life, Central Parkway, Newcastle upon Tyne, NE1 3BZ, UK
| | - Ahlam Alqahtani
- Bioscience Institute, Newcastle University, Centre for Life, Central Parkway, Newcastle upon Tyne, NE1 3BZ, UK
| | - Bill Chaudhry
- Bioscience Institute, Newcastle University, Centre for Life, Central Parkway, Newcastle upon Tyne, NE1 3BZ, UK
| | - Deborah J. Henderson
- Bioscience Institute, Newcastle University, Centre for Life, Central Parkway, Newcastle upon Tyne, NE1 3BZ, UK
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Siricilla S, Hansen CJ, Rogers JH, De D, Simpson CL, Waterson AG, Sulikowski GA, Crockett SL, Boatwright N, Reese J, Paria BC, Newton J, Herington JL. Arrest of mouse preterm labor until term delivery by combination therapy with atosiban and mundulone, a natural product with tocolytic efficacy. Pharmacol Res 2023; 195:106876. [PMID: 37536638 PMCID: PMC10712649 DOI: 10.1016/j.phrs.2023.106876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 07/17/2023] [Accepted: 07/28/2023] [Indexed: 08/05/2023]
Abstract
There is a lack of FDA-approved tocolytics for the management of preterm labor (PL). In prior drug discovery efforts, we identified mundulone and mundulone acetate (MA) as inhibitors of in vitro intracellular Ca2+-regulated myometrial contractility. In this study, we probed the tocolytic potential of these compounds using human myometrial samples and a mouse model of preterm birth. In a phenotypic assay, mundulone displayed greater efficacy, while MA showed greater potency and uterine-selectivity in the inhibition of intracellular-Ca2+ mobilization. Cell viability assays revealed that MA was significantly less cytotoxic. Organ bath and vessel myography studies showed that only mundulone exerted inhibition of myometrial contractions and that neither compounds affected vasoreactivity of ductus arteriosus. A high-throughput combination screen identified that mundulone exhibits synergism with two clinical-tocolytics (atosiban and nifedipine), and MA displayed synergistic efficacy with nifedipine. Of these combinations, mundulone+atosiban demonstrated a significant improvement in the in vitro therapeutic index compared to mundulone alone. The ex vivo and in vivo synergism of mundulone+atosiban was substantiated, yielding greater tocolytic efficacy and potency on myometrial tissue and reduced preterm birth rates in a mouse model of PL compared to each single agent. Treatment with mundulone after mifepristone administration dose-dependently delayed the timing of delivery. Importantly, mundulone+atosiban permitted long-term management of PL, allowing 71% dams to deliver viable pups at term (>day 19, 4-5 days post-mifepristone exposure) without visible maternal and fetal consequences. Collectively, these studies provide a strong foundation for the development of mundulone as a single or combination tocolytic for management of PL.
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Affiliation(s)
- Shajila Siricilla
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Christopher J Hansen
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Pharmacology, Vanderbilt University, Nashville, TN, USA
| | - Jackson H Rogers
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Debasmita De
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Carolyn L Simpson
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Alex G Waterson
- Department of Pharmacology, Vanderbilt University, Nashville, TN, USA; Department of Chemistry, Vanderbilt University, Nashville, TN, USA; Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN, USA
| | - Gary A Sulikowski
- Department of Chemistry, Vanderbilt University, Nashville, TN, USA; Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN, USA
| | - Stacey L Crockett
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Naoko Boatwright
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jeff Reese
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA
| | - Bibhash C Paria
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - J Newton
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jennifer L Herington
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Pharmacology, Vanderbilt University, Nashville, TN, USA.
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7
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Siricilla S, Hansen CJ, Rogers JH, De D, Simpson CL, Waterson AG, Sulikowski GA, Crockett SL, Boatwright N, Reese J, Paria BC, Newton J, Herington JL. Arrest of mouse preterm labor until term delivery by combination therapy with atosiban and mundulone, a natural product with tocolytic efficacy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.06.543921. [PMID: 37333338 PMCID: PMC10274706 DOI: 10.1101/2023.06.06.543921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Currently, there is a lack of FDA-approved tocolytics for the management of preterm labor (PL). In prior drug discovery efforts, we identified mundulone and its analog mundulone acetate (MA) as inhibitors of in vitro intracellular Ca 2+ -regulated myometrial contractility. In this study, we probed the tocolytic and therapeutic potential of these small molecules using myometrial cells and tissues obtained from patients receiving cesarean deliveries, as well as a mouse model of PL resulting in preterm birth. In a phenotypic assay, mundulone displayed greater efficacy in the inhibition of intracellular-Ca 2+ from myometrial cells; however, MA showed greater potency and uterine-selectivity, based IC 50 and E max values between myometrial cells compared to aorta vascular smooth muscle cells, a major maternal off-target site of current tocolytics. Cell viability assays revealed that MA was significantly less cytotoxic. Organ bath and vessel myography studies showed that only mundulone exerted concentration-dependent inhibition of ex vivo myometrial contractions and that neither mundulone or MA affected vasoreactivity of ductus arteriosus, a major fetal off-target of current tocolytics. A high-throughput combination screen of in vitro intracellular Ca 2+ -mobilization identified that mundulone exhibits synergism with two clinical-tocolytics (atosiban and nifedipine), and MA displayed synergistic efficacy with nifedipine. Of these synergistic combinations, mundulone + atosiban demonstrated a favorable in vitro therapeutic index (TI)=10, a substantial improvement compared to TI=0.8 for mundulone alone. The ex vivo and in vivo synergism of mundulone and atosiban was substantiated, yielding greater tocolytic efficacy and potency on isolated mouse and human myometrial tissue and reduced preterm birth rates in a mouse model of PL compared to each single agent. Treatment with mundulone 5hrs after mifepristone administration (and PL induction) dose-dependently delayed the timing of delivery. Importantly, mundulone in combination with atosiban (FR 3.7:1, 6.5mg/kg + 1.75mg/kg) permitted long-term management of PL after induction with 30 μg mifepristone, allowing 71% dams to deliver viable pups at term (> day 19, 4-5 days post-mifepristone exposure) without any visible maternal and fetal consequences. Collectively, these studies provide a strong foundation for the future development of mundulone as a stand-alone single- and/or combination-tocolytic therapy for management of PL.
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8
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Costa TJ, Barros PR, Duarte DA, Silva-Neto JA, Hott SC, Santos-Silva T, Costa-Neto CM, Gomes FV, Akamine EH, McCarthy CG, Jimenez-Altayó F, Dantas AP, Tostes RC. Carotid dysfunction in senescent female mice is mediated by increased α 1A-adrenoceptor activity and COX-derived vasoconstrictor prostanoids. Am J Physiol Heart Circ Physiol 2023; 324:H417-H429. [PMID: 36705993 DOI: 10.1152/ajpheart.00495.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
α-Adrenergic receptors are crucial regulators of vascular hemodynamics and essential pharmacological targets for cardiovascular diseases. With aging, there is an increase in sympathetic activation, which could contribute to the progression of aging-associated cardiovascular dysfunction, including stroke. Nevertheless, there is little information directly associating adrenergic receptor dysfunction in the blood vessels of aged females. This study determined the role of a-adrenergic receptors in carotid dysfunction of senescent female mice (accelerated-senescence prone, SAMP8), compared with a nonsenescent (accelerated-senescence prone, SAMR1). Vasoconstriction to phenylephrine (Phe) was markedly increased in common carotid artery of SAMP8 [area under the curve (AUC), 527 ± 53] compared with SAMR1 (AUC, 334 ± 30, P = 0.006). There were no changes in vascular responses to the vasoconstrictor agent U46619 or the vasodilators acetylcholine (ACh) and sodium nitroprusside (NPS). Hyperactivity to Phe in female SAMP8 was reduced by cyclooxygenase-1 and cyclooxygenase-2 inhibition and associated with augmented ratio of TXA2/PGI2 release (SAMR1, 1.1 ± 0.1 vs. SAMP8, 2.1 ± 0.3, P = 0.007). However, no changes in cyclooxygenase expression were seen in SAMP8 carotids. Selective α1A-receptor antagonism markedly reduced maximal contraction, whereas α1D antagonism induced a minor shift in Phe contraction in SAMP8 carotids. Ligand binding analysis revealed a threefold increase of α-adrenergic receptor density in smooth muscle cells (VSMCs) of SAMP8 vs. SAMR1. Phe rapidly increased intracellular calcium (Cai2+) in VSMCs via the α1A-receptor, with a higher peak in VSMCs from SAMP8. In conclusion, senescence intensifies vasoconstriction mediated by α1A-adrenergic signaling in the carotid of female mice by mechanisms involving increased Cai2+ and release of cyclooxygenase-derived prostanoids.NEW & NOTEWORTHY The present study provides evidence that senescence induces hyperreactivity of α1-adrenoceptor-mediated contraction of the common carotid. Impairment of α1-adrenoceptor responses is linked to increased Ca2+ influx and release of COX-derived vasoconstrictor prostanoids, contributing to carotid dysfunction in the murine model of female senescence (SAMP8). Increased reactivity of the common carotid artery during senescence may lead to morphological and functional changes in arteries of the cerebral microcirculation and contribute to cognitive decline in females. Because the elderly population is growing, elucidating the mechanisms of aging- and sex-associated vascular dysfunction is critical to better direct pharmacological and lifestyle interventions to prevent cardiovascular risk in both sexes.
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Affiliation(s)
- Tiago J Costa
- Department of Pharmacology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Department of Cell Biology and Anatomy, Cardiovascular Translational Research Center, University of South Carolina, Columbia, South Carolina, United States
| | - Paula R Barros
- Department of Pharmacology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Diego A Duarte
- Department of Pharmacology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Department of Biochemistry and Immunology, School of Medicine, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Júlio A Silva-Neto
- Department of Pharmacology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Sara Cristina Hott
- Department of Pharmacology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Thamyris Santos-Silva
- Department of Pharmacology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Claudio M Costa-Neto
- Department of Biochemistry and Immunology, School of Medicine, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Felipe V Gomes
- Department of Pharmacology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Eliana H Akamine
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Cameron G McCarthy
- Department of Cell Biology and Anatomy, Cardiovascular Translational Research Center, University of South Carolina, Columbia, South Carolina, United States
| | - Francesc Jimenez-Altayó
- Department of Pharmacology, Therapeutic, and Toxicology, School of Medicine, Neuroscience Institute, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Ana Paula Dantas
- Laboratory of Experimental Cardiology, Institut d'Investigacions Biomediques August Pi i Sunyer, Hospital Clinic Cardiovascular Institute, Barcelona, Spain
| | - Rita C Tostes
- Department of Pharmacology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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9
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Zou M, Mangum KD, Magin JC, Cao HH, Yarboro MT, Shelton EL, Taylor JM, Reese J, Furey TS, Mack CP. Prdm6 drives ductus arteriosus closure by promoting ductus arteriosus smooth muscle cell identity and contractility. JCI Insight 2023; 8:e163454. [PMID: 36749647 PMCID: PMC10077476 DOI: 10.1172/jci.insight.163454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/23/2023] [Indexed: 02/08/2023] Open
Abstract
Based upon our demonstration that the smooth muscle cell-selective (SMC-selective) putative methyltransferase, Prdm6, interacts with myocardin-related transcription factor-A, we examined Prdm6's role in SMCs in vivo using cell type-specific knockout mouse models. Although SMC-specific depletion of Prdm6 in adult mice was well tolerated, Prdm6 depletion in Wnt1-expressing cells during development resulted in perinatal lethality and a completely penetrant patent ductus arteriosus (DA) phenotype. Lineage tracing experiments in Wnt1Cre2 Prdm6fl/fl ROSA26LacZ mice revealed normal neural crest-derived SMC investment of the outflow tract. In contrast, myography measurements on DA segments isolated from E18.5 embryos indicated that Prdm6 depletion significantly reduced DA tone and contractility. RNA-Seq analyses on DA and ascending aorta samples at E18.5 identified a DA-enriched gene program that included many SMC-selective contractile associated proteins that was downregulated by Prdm6 depletion. Chromatin immunoprecipitation-sequencing experiments in outflow tract SMCs demonstrated that 50% of the genes Prdm6 depletion altered contained Prdm6 binding sites. Finally, using several genome-wide data sets, we identified an SMC-selective enhancer within the Prdm6 third intron that exhibited allele-specific activity, providing evidence that rs17149944 may be the causal SNP for a cardiovascular disease GWAS locus identified within the human PRDM6 gene.
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Affiliation(s)
- Meng Zou
- Department of Pathology and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Kevin D. Mangum
- Department of Pathology and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Justin C. Magin
- Department of Pathology and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Heidi H. Cao
- Department of Pathology and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Michael T. Yarboro
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Elaine L. Shelton
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Joan M. Taylor
- Department of Pathology and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jeff Reese
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Terrence S. Furey
- Department of Pathology and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Christopher P. Mack
- Department of Pathology and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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10
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Körfer D, Erhart P, Wortmann M, Dihlmann S, Grond-Ginsbach C, Kilian S, Asatryan A, Jung G, Schmitz-Rixen T, Böckler D, Hakimi M. Characteristics of patients with multiple arterial aneurysms. VASA 2023; 52:119-123. [PMID: 36601699 DOI: 10.1024/0301-1526/a001050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Background: The aim of this retrospective cross-sectional observational study was to determine differences of patients with multiple arterial aneurysms to patients with single arterial aneurysms. Patients and methods: Patients with the diagnosis of an arterial aneurysm from January 2006 to January 2016 in the department of vascular surgery Heidelberg were investigated. Excluded were patients with hereditary disorders of connective tissue or systemic inflammatory disease, as well as other arterial pathologies than true aneurysms. Patients with multiple aneurysms (defined by at least four aneurysms) were compared to patients with single aneurysms concerning age at initial diagnosis, sex and affected arterial site. To verify the findings, a replication of the study was performed at a comparable institution. Results: Of 3107 patients with arterial aneurysms, 918 were excluded. Of the resulting 2189 patients, 1238 (56.6%) patients had a single, 808 (36.9%) two or three, and 143 (6.5%) at least four aneurysms (group mult-AA). Nine hundred seventy-two patients (44.4%) had a single abdominal aortic aneurysm (group sing-AAA). Age at initial diagnosis differed between mult-AA (66.7±9.5 y) and sing-AAA (69.1±8.6 y) (p=0.0338). Within mult-AA, 138 patients (96.5%) were male, compared with 865 patients (89.0%) in sing-AAA (p=0.0041). The most frequent aneurysm localization shifted from the abdominal aorta and its branches in patients with a single aneurysm (n=1029; 83.1%) to pelvic and leg arteries in patients with at least four aneurysms (n=318; 63.2%). The replication of the study at the department of vascular surgery Frankfurt confirmed the younger age at initial diagnosis in mult-AA (67.3±12.5 y) compared to sing-AAA (70.9±9.6 y) (p=0.0259) and the distribution shift toward the arteries below the aortic bifurcation in mult-AA. Conclusions: Patients with multiple aneurysms are younger at initial diagnosis and differ concerning aneurysm localization compared to patients with a single aneurysm.
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Affiliation(s)
- Daniel Körfer
- Department of Vascular and Endovascular Surgery, University Hospital Heidelberg, Germany
| | - Philipp Erhart
- Department of Vascular and Endovascular Surgery, University Hospital Heidelberg, Germany
| | - Markus Wortmann
- Department of Vascular and Endovascular Surgery, University Hospital Heidelberg, Germany.,Department of Vascular Surgery, Endovascular Surgery and Transplant Surgery, Klinikum Stuttgart - Katharinenhospital, Germany
| | - Susanne Dihlmann
- Department of Vascular and Endovascular Surgery, University Hospital Heidelberg, Germany
| | - Caspar Grond-Ginsbach
- Department of Vascular and Endovascular Surgery, University Hospital Heidelberg, Germany
| | - Samuel Kilian
- Institute for Medical Biometry and Informatics, University of Heidelberg, Germany
| | - Ara Asatryan
- Department of Vascular and Endovascular Surgery, University Hospital Frankfurt, Germany
| | - Georg Jung
- Department of Vascular and Endovascular Surgery, University Hospital Frankfurt, Germany.,Department of Vascular Surgery, Lucerne Cantonal Hospital, Switzerland
| | - Thomas Schmitz-Rixen
- Department of Vascular and Endovascular Surgery, University Hospital Frankfurt, Germany
| | - Dittmar Böckler
- Department of Vascular and Endovascular Surgery, University Hospital Heidelberg, Germany
| | - Maani Hakimi
- Department of Vascular Surgery, Lucerne Cantonal Hospital, Switzerland
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11
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Rodrigues Bento J, Meester J, Luyckx I, Peeters S, Verstraeten A, Loeys B. The Genetics and Typical Traits of Thoracic Aortic Aneurysm and Dissection. Annu Rev Genomics Hum Genet 2022; 23:223-253. [PMID: 36044906 DOI: 10.1146/annurev-genom-111521-104455] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Genetic predisposition and risk factors such as hypertension and smoking can instigate the development of thoracic aortic aneurysm (TAA), which can lead to highly lethal aortic wall dissection and/or rupture. Monogenic defects in multiple genes involved in the elastin-contractile unit and the TGFβ signaling pathway have been associated with TAA in recent years, along with several genetic modifiers and risk-conferring polymorphisms. Advances in omics technology have also provided significant insights into the processes behind aortic wall degeneration: inflammation, epigenetics, vascular smooth muscle phenotype change and depletion, reactive oxygen species generation, mitochondrial dysfunction, and angiotensin signaling dysregulation. These recent advances and findings might pave the way for a therapy that is capable of stopping and perhaps even reversing aneurysm progression.
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Affiliation(s)
- Jotte Rodrigues Bento
- Centre of Medical Genetics, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium;
| | - Josephina Meester
- Centre of Medical Genetics, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium;
| | - Ilse Luyckx
- Centre of Medical Genetics, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium; .,Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Silke Peeters
- Centre of Medical Genetics, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium;
| | - Aline Verstraeten
- Centre of Medical Genetics, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium;
| | - Bart Loeys
- Centre of Medical Genetics, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium; .,Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
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12
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Hynes N, Acharya Y, Sultan S. The contemporary design of endovascular aneurysm stent-graft materials: PTFE versus polyester. Front Surg 2022; 9:984727. [PMID: 36051707 PMCID: PMC9424654 DOI: 10.3389/fsurg.2022.984727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 08/02/2022] [Indexed: 11/13/2022] Open
Abstract
Endovascular aneurysm repair of the abdominal aorta (EVAR) and of the thoracic aorta (TEVAR) have revolutionised therapeutic strategies in the management of aortic pathology, and endovascular repair is now an established and attractive alternative to open surgical repair (OSR) due to its superior short-term safety profile. However, opinions are divided regarding its long-term cost-effectiveness, which is reflected in the controversial NICE guidelines on abdominal aortic aneurysm (AAA) repair published in 2018, which advised against EVAR for elective aortic repair due to high secondary intervention rates and resultant associated costs. There is no doubt that OSR continues to have a valuable role to play in aortic repair, but it is not universally applicable, especially in older and sicker patients. Therefore, we should not dismiss EVAR and TEVAR without examining the reasons for long-term failure, and the most obvious starting point is stent graft material properties. Polytetrafluoroethylene (PTFE) and polyester are the two most common stent-graft materials; however, there has been no objective comparison of PTFE and polyester stent-graft post-procedural outcomes in EVAR and TEVAR, or even OSR. This lack of definitive data on different stent-graft materials and their configuration necessitates a comprehensive review to elucidate the post-procedural outcome in terms of endograft failure, cardiovascular events, and aortic-related mortality and morbidity.
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Affiliation(s)
- Niamh Hynes
- CURAM SFI Centre for Medical Devices, Biomedical Sciences, National University of Ireland Galway, Galway, Ireland
- Department of Vascular & Endovascular Surgery, Western Vascular Institute, Galway University Hospital, Galway, Ireland
- Correspondence: Niamh Hynes
| | - Yogesh Acharya
- Department of Vascular & Endovascular Surgery, Western Vascular Institute, Galway University Hospital, Galway, Ireland
| | - Sherif Sultan
- Department of Vascular & Endovascular Surgery, Western Vascular Institute, Galway University Hospital, Galway, Ireland
- Department of Vascular & Endovascular Surgery, Galway Clinic, Galway, Ireland
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13
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Bhatt AB, Lantin-Hermoso MR, Daniels CJ, Jaquiss R, Landis BJ, Marino BS, Rathod RH, Vincent RN, Keller BB, Villafane J. Isolated Coarctation of the Aorta: Current Concepts and Perspectives. Front Cardiovasc Med 2022; 9:817866. [PMID: 35694677 PMCID: PMC9174545 DOI: 10.3389/fcvm.2022.817866] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 03/21/2022] [Indexed: 12/02/2022] Open
Abstract
Current management of isolated CoA, localized narrowing of the aortic arch in the absence of other congenital heart disease, is a success story with improved prenatal diagnosis, high survival and improved understanding of long-term complication. Isolated CoA has heterogenous presentations, complex etiologic mechanisms, and progressive pathophysiologic changes that influence outcome. End-to-end or extended end-to-end anastomosis are the favored surgical approaches for isolated CoA in infants and transcatheter intervention is favored for children and adults. Primary stent placement is the procedure of choice in larger children and adults. Most adults with treated isolated CoA thrive, have normal daily activities, and undergo successful childbirth. Fetal echocardiography is the cornerstone of prenatal counseling and genetic testing is recommended. Advanced 3D imaging identifies aortic complications and myocardial dysfunction and guides individualized therapies including re-intervention. Adult CHD program enrollment is recommended. Longer follow-up data are needed to determine the frequency and severity of aneurysm formation, myocardial dysfunction, and whether childhood lifestyle modifications reduce late-onset complications.
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Affiliation(s)
- Ami B. Bhatt
- Departments of Internal Medicine and Pediatrics and Division of Cardiology, Harvard Medical School, Boston, MA, United States
| | - Maria R. Lantin-Hermoso
- Section of Cardiology, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
| | - Curt J. Daniels
- Departments of Pediatrics and Internal Medicine, The Ohio State University Medical Center, Columbus, OH, United States
| | - Robert Jaquiss
- Department of Cardiovascular and Thoracic Surgery and Department of Pediatrics, UT Southwestern Medical Center, Dallas, TX, United States
| | - Benjamin John Landis
- Department of Pediatrics and Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Bradley S. Marino
- Department of Pediatric Cardiology, Cleveland Clinic Children's, Cleveland, OH, United States
| | - Rahul H. Rathod
- Department of Pediatrics, Harvard Medical School, Boston, MA, United States
| | - Robert N. Vincent
- Department of Pediatrics, New York Medical College, Valhalla, NY, United States
| | - Bradley B. Keller
- Cincinnati Children's Heart Institute and the Department of Pediatrics, University of Cincinnati, Cincinnati, OH, United States
- *Correspondence: Bradley B. Keller
| | - Juan Villafane
- Cincinnati Children's Heart Institute and the Department of Pediatrics, University of Cincinnati, Cincinnati, OH, United States
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14
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Yarboro MT, Gopal SH, Su RL, Morgan TM, Reese J. Mouse models of patent ductus arteriosus (PDA) and their relevance for human PDA. Dev Dyn 2022; 251:424-443. [PMID: 34350653 PMCID: PMC8814064 DOI: 10.1002/dvdy.408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/16/2021] [Accepted: 07/27/2021] [Indexed: 12/15/2022] Open
Abstract
The ductus arteriosus (DA) is a unique fetal vascular shunt, which allows blood to bypass the developing lungs in utero. After birth, changes in complex signaling pathways lead to constriction and permanent closure of the DA. The persistent patency of the DA (PDA) is a common disorder in preterm infants, yet the underlying causes of PDA are not fully defined. Although limits on the availability of human DA tissues prevent comprehensive studies on the mechanisms of DA function, mouse models have been developed that reveal critical pathways in DA regulation. Over 20 different transgenic models of PDA in mice have been described, with implications for human DA biology. Similarly, we enumerate 224 human single-gene syndromes that are associated with PDA, including a small subset that consistently feature PDA as a prominent phenotype. Comparison and functional analyses of these genes provide insight into DA development and identify key regulatory pathways that may serve as potential therapeutic targets for the management of PDA.
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Affiliation(s)
- Michael T Yarboro
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA
| | - Srirupa H Gopal
- Department of Pediatrics, Erlanger Health System, Chattanooga, Tennessee, USA
| | - Rachel L Su
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Thomas M Morgan
- Division of Medical Genetics and Genomic Medicine, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jeff Reese
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA.,Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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15
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Single-Cell Analysis Uncovers Osteoblast Factor Growth Differentiation Factor 10 as Mediator of Vascular Smooth Muscle Cell Phenotypic Modulation Associated with Plaque Rupture in Human Carotid Artery Disease. Int J Mol Sci 2022; 23:ijms23031796. [PMID: 35163719 PMCID: PMC8836240 DOI: 10.3390/ijms23031796] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/21/2022] [Accepted: 01/26/2022] [Indexed: 12/18/2022] Open
Abstract
(1) Background: Vascular smooth muscle cells (VSMCs) undergo a complex phenotypic switch in response to atherosclerosis environmental triggers, contributing to atherosclerosis disease progression. However, the complex heterogeneity of VSMCs and how VSMC dedifferentiation affects human carotid artery disease (CAD) risk has not been clearly established. (2) Method: A single-cell RNA sequencing analysis of CD45− cells derived from the atherosclerotic aorta of Apolipoprotein E-deficient (Apoe−/−) mice on a normal cholesterol diet (NCD) or a high cholesterol diet (HCD), respecting the site-specific predisposition to atherosclerosis was performed. Growth Differentiation Factor 10 (GDF10) role in VSMCs phenotypic switch was investigated via flow cytometry, immunofluorescence in human atherosclerotic plaques. (3) Results: scRNAseq analysis revealed the transcriptomic profile of seven clusters, five of which showed disease-relevant gene signature of VSMC macrophagic calcific phenotype, VSMC mesenchymal chondrogenic phenotype, VSMC inflammatory and fibro-phenotype and VSMC inflammatory phenotype. Osteoblast factor GDF10 involved in ossification and osteoblast differentiation emerged as a hallmark of VSMCs undergoing phenotypic switch. Under hypercholesteremia, GDF10 triggered VSMC osteogenic switch in vitro. The abundance of GDF10 expressing osteogenic-like VSMCs cells was linked to the occurrence of carotid artery disease (CAD) events. (4) Conclusions: Taken together, these results provide evidence about GDF10-mediated VSMC osteogenic switch, with a likely detrimental role in atherosclerotic plaque stability.
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16
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Congenital heart disease: pathology, natural history, and interventions. Cardiovasc Pathol 2022. [DOI: 10.1016/b978-0-12-822224-9.00011-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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17
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Lu H, Du W, Ren L, Hamblin MH, Becker RC, Chen YE, Fan Y. Vascular Smooth Muscle Cells in Aortic Aneurysm: From Genetics to Mechanisms. J Am Heart Assoc 2021; 10:e023601. [PMID: 34796717 PMCID: PMC9075263 DOI: 10.1161/jaha.121.023601] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Aortic aneurysm, including thoracic aortic aneurysm and abdominal aortic aneurysm, is the second most prevalent aortic disease following atherosclerosis, representing the ninth-leading cause of death globally. Open surgery and endovascular procedures are the major treatments for aortic aneurysm. Typically, thoracic aortic aneurysm has a more robust genetic background than abdominal aortic aneurysm. Abdominal aortic aneurysm shares many features with thoracic aortic aneurysm, including loss of vascular smooth muscle cells (VSMCs), extracellular matrix degradation and inflammation. Although there are limitations to perfectly recapitulating all features of human aortic aneurysm, experimental models provide valuable tools to understand the molecular mechanisms and test novel therapies before human clinical trials. Among the cell types involved in aortic aneurysm development, VSMC dysfunction correlates with loss of aortic wall structural integrity. Here, we discuss the role of VSMCs in aortic aneurysm development. The loss of VSMCs, VSMC phenotypic switching, secretion of inflammatory cytokines, increased matrix metalloproteinase activity, elevated reactive oxygen species, defective autophagy, and increased senescence contribute to aortic aneurysm development. Further studies on aortic aneurysm pathogenesis and elucidation of the underlying signaling pathways are necessary to identify more novel targets for treating this prevalent and clinical impactful disease.
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Affiliation(s)
- Haocheng Lu
- Department of Internal Medicine Cardiovascular Center University of Michigan Medical Center Ann Arbor MI
| | - Wa Du
- Department of Cancer Biology University of Cincinnati College of Medicine Cincinnati OH
| | - Lu Ren
- Department of Cancer Biology University of Cincinnati College of Medicine Cincinnati OH
| | - Milton H Hamblin
- Department of Pharmacology Tulane University School of Medicine New Orleans LA
| | - Richard C Becker
- Division of Cardiovascular Health and Disease Department of Internal Medicine University of Cincinnati College of Medicine Cincinnati OH
| | - Y Eugene Chen
- Department of Internal Medicine Cardiovascular Center University of Michigan Medical Center Ann Arbor MI
| | - Yanbo Fan
- Department of Cancer Biology University of Cincinnati College of Medicine Cincinnati OH.,Division of Cardiovascular Health and Disease Department of Internal Medicine University of Cincinnati College of Medicine Cincinnati OH
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18
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Vignac M, Ntika S, Olsson C, Franco-Cereceda A, Björck HM. Metformin therapy is not associated with the lower prevalence of ascending aortic aneurysm in diabetic patients. Eur J Cardiothorac Surg 2021; 61:388-392. [PMID: 34676406 DOI: 10.1093/ejcts/ezab435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/05/2021] [Accepted: 08/19/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Metformin therapy has previously been associated with reduced abdominal aortic aneurysm growth rate in diabetic patients and shown to suppress the formation and progression of abdominal aortic aneurysm in normoglycemic mice. Here, we investigated the association between Metformin treatment and prevalence of aneurysm in the ascending aorta (AscAA). METHODS A total of 734 patients undergoing open-heart surgery for AscAA and/or aortic valve disease were studied. Diabetes status and medication use were self-reported by the patients in a systematic questionnaire. Aortic dilatation was defined as an aortic root or ascending aortic diameter ≥4.0 cm. High-sensitivity C-reactive protein levels were assessed as a measure of systemic inflammation. RESULTS We could confirm the inverse association between diabetes and AscAA prevalence (16% vs 43.9%, for diabetic and non-diabetic patients, respectively; Odds ratio 0.243; 95% CI, 0.129-0.460, P < 0.001). Furthermore, in diabetic patients, Metformin treatment was associated with lower high-sensitivity C-reactive protein levels. There was, however, no difference in the prevalence of AscAA among diabetic patients with and without Metformin treatment (16% vs 16% for treated and non-treated patients, respectively; OR 1.039; 95% CI 0.26-4.19, P = 0.957). CONCLUSIONS Our data do not support a protective effect of Metformin therapy in AscAA formation. SUBJ COLLECTION 161, 173.
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Affiliation(s)
- Maxime Vignac
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Karolinska University Hospital, Solna, Sweden.,Karolinska University Hospital, Solna, Sweden
| | - Stelia Ntika
- Cardiothoracic Surgery Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.,Södertälje Hospital, Department of Research, Södertälje, Sweden
| | - Christian Olsson
- Cardiothoracic Surgery Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Anders Franco-Cereceda
- Cardiothoracic Surgery Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Hanna M Björck
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Karolinska University Hospital, Solna, Sweden.,Karolinska University Hospital, Solna, Sweden
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19
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Mercier N, Bäck M. The double-action of hydrogen peroxide on the oxidative atherosclerosis battlefield. Atherosclerosis 2021; 331:28-30. [PMID: 34391571 DOI: 10.1016/j.atherosclerosis.2021.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 07/02/2021] [Indexed: 12/28/2022]
Affiliation(s)
- Nathalie Mercier
- CHRU de Nancy and Inserm, UMR_S 1116, DCAC, Université de Lorraine, Nancy, France.
| | - Magnus Bäck
- CHRU de Nancy and Inserm, UMR_S 1116, DCAC, Université de Lorraine, Nancy, France; Department of Cardiology Karolinska University Hospital and Department of Medicine Karolinska Institutet, Stockholm, Sweden
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20
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Deal KK, Rosebrock JC, Eeds AM, DeKeyser JML, Musser MA, Ireland SJ, May-Zhang AA, Buehler DP, Southard-Smith EM. Sox10-cre BAC transgenes reveal temporal restriction of mesenchymal cranial neural crest and identify glandular Sox10 expression. Dev Biol 2020; 471:119-137. [PMID: 33316258 DOI: 10.1016/j.ydbio.2020.12.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 12/29/2022]
Abstract
Diversity of neural crest derivatives has been studied with a variety of approaches during embryonic development. In mammals Cre-LoxP lineage tracing is a robust means to fate map neural crest relying on cre driven from regulatory elements of early neural crest genes. Sox10 is an essential transcription factor for normal neural crest development. A variety of efforts have been made to label neural crest derivatives using partial Sox10 regulatory elements to drive cre expression. To date published Sox10-cre lines have focused primarily on lineage tracing in specific tissues or during early fetal development. We describe two new Sox10-cre BAC transgenes, constitutive (cre) and inducible (cre/ERT2), that contain the complete repertoire of Sox10 regulatory elements. We present a thorough expression profile of each, identifying a few novel sites of Sox10 expression not captured by other neural crest cre drivers. Comparative mapping of expression patterns between the Sox10-cre and Sox10-cre/ERT2 transgenes identified a narrow temporal window in which Sox10 expression is present in mesenchymal derivatives prior to becoming restricted to neural elements during embryogenesis. In more caudal structures, such as the intestine and lower urinary tract, our Sox10-cre BAC transgene appears to be more efficient in labeling neural crest-derived cell types than Wnt1-cre. The analysis reveals consistent expression of Sox10 in non-neural crest derived glandular epithelium, including salivary, mammary, and urethral glands of adult mice. These Sox10-cre and Sox10-cre/ERT2 transgenic lines are verified tools that will enable refined temporal and cell-type specific lineage analysis of neural crest derivatives as well as glandular tissues that rely on Sox10 for proper development and function.
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Affiliation(s)
- Karen K Deal
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Jennifer C Rosebrock
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Angela M Eeds
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Jean-Marc L DeKeyser
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA; Present address: Northwestern University, Dept. of Pharmacology, USA
| | - Melissa A Musser
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA; Present address: Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA, USA
| | - Sara J Ireland
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Aaron A May-Zhang
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Dennis P Buehler
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - E Michelle Southard-Smith
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA.
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21
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Abstract
Inherited thoracic aortopathies denote a group of congenital conditions that predispose to disease of the thoracic aorta. Aortic wall weakness and abnormal aortic hemodynamic profiles predispose these patients to dilatation of the thoracic aorta, which is generally silent but can precipitate aortic dissection or rupture with devastating and often fatal consequences. Current strategies to assess the future risk of aortic dissection or rupture are based primarily on monitoring aortic diameter. However, diameter alone is a poor predictor of risk, with many patients experiencing dissection or rupture below current intervention thresholds. Developing tools that improve the risk assessment of those with aortopathy is internationally regarded as a research priority. A robust understanding of the molecular pathways that lead to aortic wall weakness is required to identify biomarkers and therapeutic targets that could improve patient management. Here, we summarize the current understanding of the genetically determined mechanisms underlying inherited aortopathies and critically appraise the available blood biomarkers, imaging techniques, and therapeutic targets that have shown promise for improving the management of patients with these important and potentially fatal conditions.
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Affiliation(s)
- Alexander J. Fletcher
- University of Edinburgh Centre for Cardiovascular Science, Royal Infirmary of Edinburgh, United Kingdom (A.J.F., M.B.J.S., D.E.N., N.L.W.)
| | - Maaz B.J. Syed
- University of Edinburgh Centre for Cardiovascular Science, Royal Infirmary of Edinburgh, United Kingdom (A.J.F., M.B.J.S., D.E.N., N.L.W.)
| | - Timothy J. Aitman
- Centre for Genomics and Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, United Kingdom (T.J.A.)
| | - David E. Newby
- University of Edinburgh Centre for Cardiovascular Science, Royal Infirmary of Edinburgh, United Kingdom (A.J.F., M.B.J.S., D.E.N., N.L.W.)
| | - Niki L. Walker
- University of Edinburgh Centre for Cardiovascular Science, Royal Infirmary of Edinburgh, United Kingdom (A.J.F., M.B.J.S., D.E.N., N.L.W.)
- Scottish Adult Congenital Heart Disease Service, Golden Jubilee National Hospital, Clydebank, Glasgow, United Kingdom (N.L.W.)
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22
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Crockett SL, Harris M, Boatwright N, Su RL, Yarboro MT, Berger CD, Shelton EL, Reese J, Segar JL. Role of dopamine and selective dopamine receptor agonists on mouse ductus arteriosus tone and responsiveness. Pediatr Res 2020; 87:991-997. [PMID: 31816622 PMCID: PMC7196482 DOI: 10.1038/s41390-019-0716-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 11/19/2019] [Accepted: 11/23/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND Indomethacin treatment for patent ductus arteriosus (PDA) is associated with acute kidney injury (AKI). Fenoldopam, a dopamine (DA) DA1-like receptor agonist dilates the renal vasculature and may preserve renal function during indomethacin treatment. However, limited information exists on DA receptor-mediated signaling in the ductus and fenoldopam may prevent ductus closure given its vasodilatory nature. METHODS DA receptor expression in CD-1 mouse vessels was analyzed by qPCR and immunohistochemistry. Concentration-response curves were established using pressure myography. Pretreatment with SCH23390 (DA1-like receptor antagonist), phentolamine (α -adrenergic receptor antagonist) or indomethacin addressed mechanisms for DA-induced changes. Fenoldopam's effects on postnatal ductus closure were evaluated in vivo. RESULTS DA1 receptors were expressed equally in ductus and aorta. High-dose DA induced modest vasoconstriction under newborn O2 conditions. Phentolamine inhibited DA-induced constriction, while SCH23390 augmented constriction, consistent with a vasodilatory role for DA1 receptors. Despite this, fenoldopam had little effect on ductus tone nor indomethacin- or O2-induced constriction and did not impair postnatal closure in vivo. CONCLUSION(S) DA receptors are present in the ductus but have limited physiologic effects. DA-induced ductus vasoconstriction is mediated via α-adrenergic pathways. The absence of DA1-mediated impairment of ductus closure supports the study of potential role for fenoldopam during PDA treatment.
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Affiliation(s)
- Stacey L. Crockett
- Dept. of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Micah Harris
- Dept. of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Naoko Boatwright
- Dept. of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Rachel L. Su
- Dept. of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Michael T. Yarboro
- Dept. of Cell and Developmental Biology, Vanderbilt University, Nashville, TN
| | - Courtney D. Berger
- Dept. of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Elaine L. Shelton
- Dept. of Pediatrics, Vanderbilt University Medical Center, Nashville, TN;,Dept. of Pharmacology, Vanderbilt University, Nashville, TN
| | - Jeff Reese
- Dept. of Pediatrics, Vanderbilt University Medical Center, Nashville, TN;,Dept. of Cell and Developmental Biology, Vanderbilt University, Nashville, TN
| | - Jeffrey L. Segar
- Dept. of Pediatrics, Medical College of Wisconsin, Milwaukee, WI
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23
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Chavkin NW, Hirschi KK. Single Cell Analysis in Vascular Biology. Front Cardiovasc Med 2020; 7:42. [PMID: 32296715 PMCID: PMC7137757 DOI: 10.3389/fcvm.2020.00042] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/05/2020] [Indexed: 12/12/2022] Open
Abstract
The ability to quantify DNA, RNA, and protein variations at the single cell level has revolutionized our understanding of cellular heterogeneity within tissues. Via such analyses, individual cells within populations previously thought to be homogeneous can now be delineated into specific subpopulations expressing unique sets of genes, enabling specialized functions. In vascular biology, studies using single cell RNA sequencing have revealed extensive heterogeneity among endothelial and mural cells even within the same vessel, key intermediate cell types that arise during blood and lymphatic vessel development, and cell-type specific responses to disease. Thus, emerging new single cell analysis techniques are enabling vascular biologists to elucidate mechanisms of vascular development, homeostasis, and disease that were previously not possible. In this review, we will provide an overview of single cell analysis methods and highlight recent advances in vascular biology made possible through single cell RNA sequencing.
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Affiliation(s)
- Nicholas W Chavkin
- Department of Cell Biology, Developmental Genomics Center, School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Karen K Hirschi
- Department of Cell Biology, Developmental Genomics Center, School of Medicine, University of Virginia, Charlottesville, VA, United States.,Departments of Medicine and Genetics, Cardiovascular Research Center, School of Medicine, Yale University, New Haven, CT, United States
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24
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Fhayli W, Boëté Q, Kihal N, Cenizo V, Sommer P, Boyle WA, Jacob MP, Faury G. Dill Extract Induces Elastic Fiber Neosynthesis and Functional Improvement in the Ascending Aorta of Aged Mice with Reversal of Age-Dependent Cardiac Hypertrophy and Involvement of Lysyl Oxidase-Like-1. Biomolecules 2020; 10:E173. [PMID: 31979322 PMCID: PMC7072659 DOI: 10.3390/biom10020173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 01/16/2023] Open
Abstract
Elastic fibers (90% elastin, 10% fibrillin-rich microfibrils) are synthesized only in early life and adolescence mainly by the vascular smooth muscle cells through the cross-linking of its soluble precursor, tropoelastin. Elastic fibers endow the large elastic arteries with resilience and elasticity. Normal vascular aging is associated with arterial remodeling and stiffening, especially due to the end of production and degradation of elastic fibers, leading to altered cardiovascular function. Several pharmacological treatments stimulate the production of elastin and elastic fibers. In particular, dill extract (DE) has been demonstrated to stimulate elastin production in vitro in dermal equivalent models and in skin fibroblasts to increase lysyl oxidase-like-1 (LOXL-1) gene expression, an enzyme contributing to tropoelastin crosslinking and elastin formation. Here, we have investigated the effects of a chronic treatment (three months) of aged male mice with DE (5% or 10% v/v, in drinking water) on the structure and function of the ascending aorta. DE treatment, especially at 10%, of aged mice protected pre-existing elastic lamellae, reactivated tropoelastin and LOXL-1 expressions, induced elastic fiber neo-synthesis, and decreased the stiffness of the aging aortic wall, probably explaining the reversal of the age-related cardiac hypertrophy also observed following the treatment. DE could thus be considered as an anti-aging product for the cardiovascular system.
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Affiliation(s)
- Wassim Fhayli
- Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, HP2, 38000 Grenoble, France; (W.F.); (Q.B.)
| | - Quentin Boëté
- Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, HP2, 38000 Grenoble, France; (W.F.); (Q.B.)
| | - Nadjib Kihal
- Laboratoire de Phytochimie et de Pharmacologie, Département de Chimie, Université de Jijel, Jijel 18000, Algeria;
| | | | - Pascal Sommer
- Institut de Biologie et Chimie des Protéines UMR5305—LBTI, CNRS, 69367 Lyon, France;
| | - Walter A. Boyle
- Department of Anesthesiology and Critical Care Medicine Division, Washington University School of Medicine, St Louis, MO 63110, USA;
| | - Marie-Paule Jacob
- INSERM, U1148, and Hopital Bichat-Claude Bernard, 75018 Paris, France;
| | - Gilles Faury
- Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, HP2, 38000 Grenoble, France; (W.F.); (Q.B.)
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25
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Malashicheva A, Kostina A, Kostareva A, Irtyuga O, Gordeev M, Uspensky V. Notch signaling in the pathogenesis of thoracic aortic aneurysms: A bridge between embryonic and adult states. Biochim Biophys Acta Mol Basis Dis 2019; 1866:165631. [PMID: 31816439 DOI: 10.1016/j.bbadis.2019.165631] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 11/23/2019] [Accepted: 12/02/2019] [Indexed: 12/17/2022]
Abstract
Aneurysms of the thoracic aorta are a "silent killer" with no evident clinical signs until the fatal outcome. Molecular and genetic bases of thoracic aortic aneurysms mainly include transforming growth factor beta signaling, smooth muscle contractile units and metabolism genes, and extracellular matrix genes. In recent studies, a role of Notch signaling, among other pathways, has emerged in disease pathogenesis. Notch is a highly conserved signaling pathway that regulates the development and differentiation of many types of tissues and influences major cellular processes such as cell proliferation, differentiation and apoptosis. Mutations in several Notch signaling components have been associated with a number of heart defects, demonstrating an essential role of Notch signaling both in cardiovascular system development and its maintenance during postnatal life. This review discusses the role of Notch signaling in the pathogenesis of thoracic aortic aneurysms considering development and maintenance of the aortic root and how developmental regulations by Notch signaling may influence thoracic aortic aneurysms.
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Affiliation(s)
- Anna Malashicheva
- Almazov National Medical Research Centre, Akkuratova, 2, 197341 Saint Petersburg, Russia; Institute of Cytology, Russian Academy of Sciences, Tikhoretskiy, 4, 194064 Saint Petersburg, Russia; Saint Petersburg State University, Department of Embryology, Universitetskaya nab., 7/9, 199034, Saint Petersburg, Russia.
| | - Aleksandra Kostina
- Almazov National Medical Research Centre, Akkuratova, 2, 197341 Saint Petersburg, Russia; Institute of Cytology, Russian Academy of Sciences, Tikhoretskiy, 4, 194064 Saint Petersburg, Russia
| | - Anna Kostareva
- Almazov National Medical Research Centre, Akkuratova, 2, 197341 Saint Petersburg, Russia
| | - Olga Irtyuga
- Almazov National Medical Research Centre, Akkuratova, 2, 197341 Saint Petersburg, Russia
| | - Mikhail Gordeev
- Almazov National Medical Research Centre, Akkuratova, 2, 197341 Saint Petersburg, Russia
| | - Vladimir Uspensky
- Almazov National Medical Research Centre, Akkuratova, 2, 197341 Saint Petersburg, Russia
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26
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Kharade SV, Sanchez-Andres JV, Fulton MG, Shelton EL, Blobaum AL, Engers DW, Hofmann CS, Dadi PK, Lantier L, Jacobson DA, Lindsley CW, Denton JS. Structure-Activity Relationships, Pharmacokinetics, and Pharmacodynamics of the Kir6.2/SUR1-Specific Channel Opener VU0071063. J Pharmacol Exp Ther 2019; 370:350-359. [PMID: 31201216 PMCID: PMC6691189 DOI: 10.1124/jpet.119.257204] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 06/12/2019] [Indexed: 01/14/2023] Open
Abstract
Glucose-stimulated insulin secretion from pancreatic β-cells is controlled by ATP-regulated potassium (KATP) channels composed of Kir6.2 and sulfonylurea receptor 1 (SUR1) subunits. The KATP channel-opener diazoxide is FDA-approved for treating hyperinsulinism and hypoglycemia but suffers from off-target effects on vascular KATP channels and other ion channels. The development of more specific openers would provide critically needed tool compounds for probing the therapeutic potential of Kir6.2/SUR1 activation. Here, we characterize a novel scaffold activator of Kir6.2/SUR1 that our group recently discovered in a high-throughput screen. Optimization efforts with medicinal chemistry identified key structural elements that are essential for VU0071063-dependent opening of Kir6.2/SUR1. VU0071063 has no effects on heterologously expressed Kir6.1/SUR2B channels or ductus arteriole tone, indicating it does not open vascular KATP channels. VU0071063 induces hyperpolarization of β-cell membrane potential and inhibits insulin secretion more potently than diazoxide. VU0071063 exhibits metabolic and pharmacokinetic properties that are favorable for an in vivo probe and is brain penetrant. Administration of VU0071063 inhibits glucose-stimulated insulin secretion and glucose-lowering in mice. Taken together, these studies indicate that VU0071063 is a more potent and specific opener of Kir6.2/SUR1 than diazoxide and should be useful as an in vitro and in vivo tool compound for investigating the therapeutic potential of Kir6.2/SUR1 expressed in the pancreas and brain.
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Affiliation(s)
- Sujay V Kharade
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Juan Vicente Sanchez-Andres
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Mark G Fulton
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Elaine L Shelton
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Anna L Blobaum
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Darren W Engers
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Christopher S Hofmann
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Prasanna K Dadi
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Louise Lantier
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - David A Jacobson
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Craig W Lindsley
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
| | - Jerod S Denton
- Departments of Anesthesiology (S.V.K., J.S.D.) and Pediatrics (E.L.S.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Medicine, Jaume I University, Castellon de la Plana, Spain (J.V.S.-A.); Departments of Chemistry (M.G.F., C.W.L.), Pharmacology (M.G.F., A.L.B., D.W.E., C.S.H., C.W.L., J.S.D.), and Molecular Physiology and Biophysics (P.K.D., D.A.J.), and Mouse Metabolic Phenotyping Core (L.L.), Vanderbilt University, Nashville, Tennessee; and Vanderbilt Center for Neuroscience Drug Discovery, Franklin, Tennessee (D.W.E., A.L.B., C.W.L.)
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Dayan V, Zuasnabar A, Citro R, Bossone E, Michelena HI, Parma G, Bellino M, Olascoaga A, Florio L, Body S. Aortopathy and regurgitation in bicuspid valve patients increase the risk of aortopathy in relatives. Int J Cardiol 2019; 286:117-120. [PMID: 30954286 DOI: 10.1016/j.ijcard.2019.03.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/12/2019] [Accepted: 03/15/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND Bicuspid aortic valve (BAV) is the most frequent cardiac congenital valvular disease. Although the BAV risk of first degree relatives (FDR) has been assessed (7-9%), there is little information as to the heritable risk for aortopathy. OBJECTIVE Identify the specific risk for regional aortopathy in FDR with tricuspid aortic valve (TAV) of BAV patients according to their aortic phenotype and aortic regurgitation (AR). METHODS Using an international consortium, BAV probands were assessed for aortopathy of the root, ascending aorta and for AR. Aortopathy was defined by the presence of segmental dilatation. The presence of segmental aortopathy and AR in BAV probands was evaluated as predictor for aortopathy in FDR with TAV. RESULTS We identified 74 FDR related to 49 probands with aortopathy and 66 FDR related to 31 probands without aortopathy. Demographic variables were similar between proband groups. Among FDR, 16 individuals had BAV (11.4%). TAV-FDR of probands with ascending aortopathy had higher incidence of root aortopathy (18.8% vs. 3.6% p < 0.05) while TAV-FDR of probands with root aortopathy had higher incidence of aortopathy at all aortic segments (55%vs25%, 55%vs21%, and 4%vs29% at annulus, root and ascending respectively, p < 0.05 for all). Independent predictors for root aortopathy in TAV-FDR were: ascending (OR = 6.23;95%CI:1.27-30.5) and root aortopathy (OR = 9.00;95%CI:1.58-51.1) in probands; and for ascending aortopathy: root aortopathy (OR = 4.04;95%CI:1.33-12.3) and AR in probands (OR = 4.84; 95%CI:1.75-13.4). CONCLUSION Root and ascending aortopathy in BAV probands are strong predictors of aortopathy in their TAV-FDR. AR in BAV patients has an independent effect on the risk for ascending aortopathy in TAV-FDR.
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Affiliation(s)
- Victor Dayan
- Centro Cardiovascular Universitario, Hospital de Clinicas, Universidad de la República, Montevideo, Uruguay.
| | - Ana Zuasnabar
- Centro Cardiovascular Universitario, Hospital de Clinicas, Universidad de la República, Montevideo, Uruguay
| | - Rodolfo Citro
- Heart Department, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", Salerno, Italy
| | - Eduardo Bossone
- Heart Department, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", Salerno, Italy
| | - Hector I Michelena
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, United States of America
| | - Gabriel Parma
- Centro Cardiovascular Universitario, Hospital de Clinicas, Universidad de la República, Montevideo, Uruguay
| | - Michele Bellino
- Heart Department, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", Salerno, Italy
| | - Alicia Olascoaga
- Departamento de Laboratorio Clinico, Hospital de Clínicas, Universidad de la Republica, Montevideo, Uruguay
| | - Lucia Florio
- Centro Cardiovascular Universitario, Hospital de Clinicas, Universidad de la República, Montevideo, Uruguay
| | - Simon Body
- Department of Anesthesia, Critical Care & Pain Medicine, Beth Israel Deaconess Medical Center, Boston, United States of America
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28
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Yarboro MT, Durbin MD, Herington JL, Shelton EL, Zhang T, Ebby CG, Stoller JZ, Clyman RI, Reese J. Transcriptional profiling of the ductus arteriosus: Comparison of rodent microarrays and human RNA sequencing. Semin Perinatol 2018; 42:212-220. [PMID: 29910032 PMCID: PMC6064668 DOI: 10.1053/j.semperi.2018.05.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
DA closure is crucial for the transition from fetal to neonatal life. This closure is supported by changes to the DA's signaling and structural properties that distinguish it from neighboring vessels. Examining transcriptional differences between these vessels is key to identifying genes or pathways responsible for DA closure. Several microarray studies have explored the DA transcriptome in animal models but varied experimental designs have led to conflicting results. Thorough transcriptomic analysis of the human DA has yet to be performed. A clear picture of the DA transcriptome is key to guiding future research endeavors, both to allow more targeted treatments in the clinical setting, and to understand the basic biology of DA function. In this review, we use a cross-species cross-platform analysis to consider all available published rodent microarray data and novel human RNAseq data in order to provide high priority candidate genes for consideration in future DA studies.
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Affiliation(s)
- Michael T. Yarboro
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232
| | - Matthew D. Durbin
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, 46202
| | - Jennifer L. Herington
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232,Department of Pharmacology, Vanderbilt University, Nashville, TN 37232
| | - Elaine L. Shelton
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232,Department of Pharmacology, Vanderbilt University, Nashville, TN 37232
| | - Tao Zhang
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Cris G. Ebby
- Rutgers New Jersey Medical School, Newark, NJ 08901
| | - Jason Z. Stoller
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Ronald I. Clyman
- Department of Pediatrics, Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA 94143
| | - Jeff Reese
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Vanderbilt University, 1125 Light Hall/MRB IV Bldg., 2215 B Garland Ave., Nashville, TN 37232; Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232.
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Shelton EL, Singh GK, Nichols CG. Novel drug targets for ductus arteriosus manipulation: Looking beyond prostaglandins. Semin Perinatol 2018; 42:221-227. [PMID: 29880312 PMCID: PMC6064654 DOI: 10.1053/j.semperi.2018.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Forty years ago, non-steroidal anti-inflammatory drugs were first reported to decrease systemic prostaglandin levels and promote ductus arteriosus (DA) closure. And yet, prolonged patency of the DA (PDA) remains a significant clinical problem, complicated by imperfect therapies and wide variations in treatment strategy. There are few pharmacology-based tools available for treating PDA (indomethacin, ibuprofen, and acetaminophen), or for maintaining DA patency (PGE1) as is needed to facilitate corrective surgery for ductus-dependent congenital heart defects. Unfortunately, all of these treatments are inefficient and are associated with concerning adverse effects. This review highlights novel potential DA drug targets that may expand our therapeutic repertoire beyond the prostaglandin pathway.
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Affiliation(s)
- Elaine L. Shelton
- Department of Pediatrics, Monroe Carell Jr. Children’s Hospital at Vanderbilt and Vanderbilt University
Medical Center, Nashville, Tennessee,Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Gautam K. Singh
- Department of Pediatrics, Washington University School of Medicine, Saint Louis Children's Hospital, Saint
Louis, Missouri
| | - Colin G. Nichols
- Department of Cell Biology and Physiology, Washington University School of Medicine, Saint Louis, Missouri
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Minatoya K. Con: "Debate: does every ascending aorta repair require at least an open distal anastomosis at the innominate? Or not?". J Vis Surg 2018; 4:49. [PMID: 29682459 DOI: 10.21037/jovs.2018.02.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 02/09/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Kenji Minatoya
- Department of Cardiovascular Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Sinha S, Santoro MM. New models to study vascular mural cell embryonic origin: implications in vascular diseases. Cardiovasc Res 2018; 114:481-491. [PMID: 29385541 DOI: 10.1093/cvr/cvy005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 01/23/2018] [Indexed: 02/15/2024] Open
Abstract
A key question in vascular biology is how the diversity of origin of vascular mural cells, namely smooth muscle cells (SMCs) and pericytes influences vessel properties, in particular the regional propensity to vascular diseases. This review therefore first describes the role and regulation of mural cells during vascular formation, with a focus on embryonic origin. We then consider the evidence that connects heterogeneities in SMC and pericyte origins with disease. Since this idea has major implications for understanding and modelling human disease, then there is a pressing need for new model systems to investigate mural cell development and the consequences of heterogeneity. Recent advances arising from in vitro strategies for deriving mural cells from human pluripotent stem cells as well as from the zebrafish model will be discussed and the medical relevance of these discoveries will be highlighted.
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Affiliation(s)
- Sanjay Sinha
- Anne McLaren Laboratory, Wellcome Trust and Medical Research Council Cambridge Stem Cell Institute, Forvie Site, University of Cambridge, Robinson Way, Cambridge CB2 0SZ, UK
- Department of Medicine, Addenbrookes Hospital, Box 157, Hills Rd, Cambridge, CB2 0QQ, UK
| | - Massimo Mattia Santoro
- Laboratory of Angiogenesis and Redox Metabolism, Department of Biology, University of Padua, 35131 Padova, Italy
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Alsiraj Y, Thatcher SE, Blalock E, Fleenor B, Daugherty A, Cassis LA. Sex Chromosome Complement Defines Diffuse Versus Focal Angiotensin II-Induced Aortic Pathology. Arterioscler Thromb Vasc Biol 2017; 38:143-153. [PMID: 29097367 DOI: 10.1161/atvbaha.117.310035] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/19/2017] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Aortic pathologies exhibit sexual dimorphism, with aneurysms in both the thoracic and abdominal aorta (ie, abdominal aortic aneurysm [AAA]) exhibiting higher male prevalence. Women have lower prevalence of aneurysms, but when they occur, aneurysms progress rapidly. To define mechanisms for these sex differences, we determined the role of sex chromosome complement and testosterone on the location and progression of angiotensin II (AngII)-induced aortic pathologies. APPROACH AND RESULTS We used transgenic male mice expressing Sry (sex-determining region Y) on an autosome to create Ldlr (low-density lipoprotein receptor)-deficient male mice with an XY or XX sex chromosome complement. Transcriptional profiling was performed on abdominal aortas from XY or XX males, demonstrating 1746 genes influenced by sex chromosomes or sex hormones. Males (XY or XX) were either sham-operated or orchiectomized before AngII infusions. Diffuse aortic aneurysm pathology developed in XY AngII-infused males, whereas XX males developed focal AAAs. Castration reduced all AngII-induced aortic pathologies in XY and XX males. Thoracic aortas from AngII-infused XY males exhibited adventitial thickening that was not present in XX males. We infused male XY and XX mice with either saline or AngII and quantified mRNA abundance of key genes in both thoracic and abdominal aortas. Regional differences in mRNA abundance existed before AngII infusions, which were differentially influenced by AngII between genotypes. Prolonged AngII infusions resulted in aortic wall thickening of AAAs from XY males, whereas XX males had dilated focal AAAs. CONCLUSIONS An XY sex chromosome complement mediates diffuse aortic pathology, whereas an XX sex chromosome complement contributes to focal AngII-induced AAAs.
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Affiliation(s)
- Yasir Alsiraj
- From the Department of Pharmacology and Nutritional Sciences (Y.A., S.E.T., E.B., L.A.C.), Department of Kinesiology (B.F.), Department of Physiology (A.D.), and Saha Cardiovascular Research Center (A.D.), University of Kentucky, Lexington
| | - Sean E Thatcher
- From the Department of Pharmacology and Nutritional Sciences (Y.A., S.E.T., E.B., L.A.C.), Department of Kinesiology (B.F.), Department of Physiology (A.D.), and Saha Cardiovascular Research Center (A.D.), University of Kentucky, Lexington
| | - Eric Blalock
- From the Department of Pharmacology and Nutritional Sciences (Y.A., S.E.T., E.B., L.A.C.), Department of Kinesiology (B.F.), Department of Physiology (A.D.), and Saha Cardiovascular Research Center (A.D.), University of Kentucky, Lexington
| | - Bradley Fleenor
- From the Department of Pharmacology and Nutritional Sciences (Y.A., S.E.T., E.B., L.A.C.), Department of Kinesiology (B.F.), Department of Physiology (A.D.), and Saha Cardiovascular Research Center (A.D.), University of Kentucky, Lexington
| | - Alan Daugherty
- From the Department of Pharmacology and Nutritional Sciences (Y.A., S.E.T., E.B., L.A.C.), Department of Kinesiology (B.F.), Department of Physiology (A.D.), and Saha Cardiovascular Research Center (A.D.), University of Kentucky, Lexington
| | - Lisa A Cassis
- From the Department of Pharmacology and Nutritional Sciences (Y.A., S.E.T., E.B., L.A.C.), Department of Kinesiology (B.F.), Department of Physiology (A.D.), and Saha Cardiovascular Research Center (A.D.), University of Kentucky, Lexington.
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Yassine NM, Shahram JT, Body SC. Pathogenic Mechanisms of Bicuspid Aortic Valve Aortopathy. Front Physiol 2017; 8:687. [PMID: 28993736 PMCID: PMC5622294 DOI: 10.3389/fphys.2017.00687] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 08/28/2017] [Indexed: 01/06/2023] Open
Abstract
Bicuspid aortic valve (BAV) is the most common congenital valvular defect and is associated with ascending aortic dilation (AAD) in a quarter of patients. AAD has been ascribed both to the hemodynamic consequences of normally functioning and abnormal BAV morphology, and to the effect of rare and common genetic variation upon function of the ascending aortic media. AAD manifests in two overall and sometimes overlapping phenotypes: that of aortic root aneurysm, similar to the AAD of Marfan syndrome; and that of tubular AAD, similar to the AAD seen with tricuspid aortic valves (TAVs). These aortic phenotypes appear to be independent of BAV phenotype, have different embryologic origins and have unique etiologic factors, notably, regarding the role of hemodynamic changes inherent to the BAV phenotype. Further, in contrast to Marfan syndrome, the AAD seen with BAV is infrequently present as a strongly inherited syndromic phenotype; rather, it appears to be a less-penetrant, milder phenotype. Both reduced levels of normally functioning transcriptional proteins and structurally abnormal proteins have been observed in aneurysmal aortic media. We provide evidence that aortic root AAD has a stronger genetic etiology, sometimes related to identified common non-coding fibrillin-1 (FBN1) variants and other aortic wall protein variants in patients with BAV. In patients with BAV having tubular AAD, we propose a stronger hemodynamic influence, but with pathology still based on a functional deficit of the aortic media, of genetic or epigenetic etiology. Although it is an attractive hypothesis to ascribe common mechanisms to BAV and AAD, thus far the genetic etiologies of AAD have not been associated to the genetic etiologies of BAV, notably, not including BAV variants in NOTCH1 and GATA4.
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Affiliation(s)
- Noor M Yassine
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's HospitalBoston, MA, United States
| | - Jasmine T Shahram
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's HospitalBoston, MA, United States
| | - Simon C Body
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's HospitalBoston, MA, United States
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Sawada H, Rateri DL, Moorleghen JJ, Majesky MW, Daugherty A. Smooth Muscle Cells Derived From Second Heart Field and Cardiac Neural Crest Reside in Spatially Distinct Domains in the Media of the Ascending Aorta-Brief Report. Arterioscler Thromb Vasc Biol 2017; 37:1722-1726. [PMID: 28663257 DOI: 10.1161/atvbaha.117.309599] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 06/20/2017] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Smooth muscle cells (SMCs) of the proximal thoracic aorta are embryonically derived from the second heart field (SHF) and cardiac neural crest (CNC). However, distributions of these embryonic origins are not fully defined. The regional distribution of SMCs of different origins is speculated to cause region-specific aortopathies. Therefore, the aim of this study was to determine the distribution of SMCs of SHF and CNC origins in the proximal thoracic aorta. APPROACH AND RESULTS Mice with repressed LacZ in the ROSA26 locus were bred to those expressing Cre controlled by either the Wnt1 or Mef2c (myocyte-specific enhancer factor 2c) promoter to trace CNC- and SHF-derived SMCs, respectively. Thoracic aortas were harvested, and activity of β-galactosidase was determined. Aortas from Wnt1-Cre mice had β-galactosidase-positive areas throughout the region from the proximal ascending aorta to just distal of the subclavian arterial branch. Unexpectedly, β-galactosidase-positive areas in Mef2c-Cre mice extended from the aortic root throughout the ascending aorta. This distribution occurred independent of sex and aging. Cross and sagittal aortic sections demonstrated that CNC-derived cells populated the inner medial aspect of the anterior region of the ascending aorta and transmurally in the media of the posterior region. Interestingly, outer medial cells throughout anterior and posterior ascending aortas were derived from the SHF. β-Galactosidase-positive medial cells of both origins colocalized with an SMC marker, α-actin. CONCLUSIONS Both CNC- and SHF-derived SMCs populate the media throughout the ascending aorta. The outer medial cells of the ascending aorta form a sleeve populated by SHF-derived SMCs.
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Affiliation(s)
- Hisashi Sawada
- From the Saha Cardiovascular Research Center (H.S., D.L.R., J.J.M., A.D.) and Department of Physiology (A.D.), University of Kentucky, Lexington; Seattle Children's Research Institute, Washington (M.W.M.); and Department of Pediatrics and Department of Pathology, University of Washington, Seattle (M.W.M.)
| | - Debra L Rateri
- From the Saha Cardiovascular Research Center (H.S., D.L.R., J.J.M., A.D.) and Department of Physiology (A.D.), University of Kentucky, Lexington; Seattle Children's Research Institute, Washington (M.W.M.); and Department of Pediatrics and Department of Pathology, University of Washington, Seattle (M.W.M.)
| | - Jessica J Moorleghen
- From the Saha Cardiovascular Research Center (H.S., D.L.R., J.J.M., A.D.) and Department of Physiology (A.D.), University of Kentucky, Lexington; Seattle Children's Research Institute, Washington (M.W.M.); and Department of Pediatrics and Department of Pathology, University of Washington, Seattle (M.W.M.)
| | - Mark W Majesky
- From the Saha Cardiovascular Research Center (H.S., D.L.R., J.J.M., A.D.) and Department of Physiology (A.D.), University of Kentucky, Lexington; Seattle Children's Research Institute, Washington (M.W.M.); and Department of Pediatrics and Department of Pathology, University of Washington, Seattle (M.W.M.)
| | - Alan Daugherty
- From the Saha Cardiovascular Research Center (H.S., D.L.R., J.J.M., A.D.) and Department of Physiology (A.D.), University of Kentucky, Lexington; Seattle Children's Research Institute, Washington (M.W.M.); and Department of Pediatrics and Department of Pathology, University of Washington, Seattle (M.W.M.).
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Shen YH, LeMaire SA. Molecular pathogenesis of genetic and sporadic aortic aneurysms and dissections. Curr Probl Surg 2017; 54:95-155. [PMID: 28521856 DOI: 10.1067/j.cpsurg.2017.01.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 01/16/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Ying H Shen
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX; Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX; Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX.
| | - Scott A LeMaire
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX; Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX; Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX; Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX.
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36
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Gareri C, De Rosa S, Indolfi C. MicroRNAs for Restenosis and Thrombosis After Vascular Injury. Circ Res 2016; 118:1170-84. [PMID: 27034278 DOI: 10.1161/circresaha.115.308237] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/01/2016] [Indexed: 12/21/2022]
Abstract
Percutaneous revascularization revolutionized the therapy of patients with coronary artery disease. Despite continuous technical advances that substantially improved patients' outcome after percutaneous revascularization, some issues are still open. In particular, restenosis still represents a challenge, even though it was dramatically reduced with the advent of drug-eluting stents. At the same time, drug-eluting stent thrombosis emerged as a major concern because of incomplete or delayed re-endothelialization after vascular injury. The discovery of microRNAs revealed a previously unknown layer of regulation for several biological processes, increasing our knowledge on the biological mechanisms underlying restenosis and stent thrombosis, revealing novel promising targets for more efficient and selective therapies. The present review summarizes recent experimental and clinical evidence on the role of microRNAs after arterial injury, focusing on practical aspects of their potential therapeutic application for selective inhibition of smooth muscle cell proliferation, enhancement of endothelial regeneration, and inhibition of platelet activation after coronary interventions. Application of circulating microRNAs as potential biomarkers is also discussed.
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Affiliation(s)
- Clarice Gareri
- From the Department of Medicine, Duke University, Durham, NC (C.G.); Division of Cardiology, Department of Medical and Surgical Science, "Magna Graecia" University, Catanzaro, Italy (S.D.R., C.I.); and URT-CNR, Department of Medicine, URT of Consiglio Nazionale delle Ricerche, Catanzaro, Italy (C.I.)
| | - Salvatore De Rosa
- From the Department of Medicine, Duke University, Durham, NC (C.G.); Division of Cardiology, Department of Medical and Surgical Science, "Magna Graecia" University, Catanzaro, Italy (S.D.R., C.I.); and URT-CNR, Department of Medicine, URT of Consiglio Nazionale delle Ricerche, Catanzaro, Italy (C.I.)
| | - Ciro Indolfi
- From the Department of Medicine, Duke University, Durham, NC (C.G.); Division of Cardiology, Department of Medical and Surgical Science, "Magna Graecia" University, Catanzaro, Italy (S.D.R., C.I.); and URT-CNR, Department of Medicine, URT of Consiglio Nazionale delle Ricerche, Catanzaro, Italy (C.I.).
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Hooper CW, Delaney C, Streeter T, Yarboro MT, Poole S, Brown N, Slaughter JC, Cotton RB, Reese J, Shelton EL. Selective serotonin reuptake inhibitor exposure constricts the mouse ductus arteriosus in utero. Am J Physiol Heart Circ Physiol 2016; 311:H572-81. [PMID: 27371685 DOI: 10.1152/ajpheart.00822.2015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 06/18/2016] [Indexed: 12/22/2022]
Abstract
Use of selective serotonin reuptake inhibitors (SSRIs) is common during pregnancy. Fetal exposure to SSRIs is associated with persistent pulmonary hypertension of the newborn (PPHN); however, a direct link between the two has yet to be established. Conversely, it is well known that PPHN can be caused by premature constriction of the ductus arteriosus (DA), a fetal vessel connecting the pulmonary and systemic circulations. We hypothesized that SSRIs could induce in utero DA constriction. Using isolated vessels and whole-animal models, we sought to determine the effects of two commonly prescribed SSRIs, fluoxetine and sertraline, on the fetal mouse DA. Cannulated vessel myography studies demonstrated that SSRIs caused concentration-dependent DA constriction and made vessels less sensitive to prostaglandin-induced dilation. Moreover, in vivo studies showed that SSRI-exposed mice had inappropriate DA constriction in utero. Taken together, these findings establish that SSRIs promote fetal DA constriction and provide a potential mechanism by which SSRIs could contribute to PPHN.
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Affiliation(s)
- Christopher W Hooper
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Cassidy Delaney
- Department of Pediatrics, University of Colorado, Denver, Colorado
| | - Taylor Streeter
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Michael T Yarboro
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Stanley Poole
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Naoko Brown
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - James C Slaughter
- Department of Biostatistics, Vanderbilt University School of Medicine, Nashville, Tennessee; and
| | - Robert B Cotton
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Jeff Reese
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Elaine L Shelton
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee;
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Pfaltzgraff ER, Bader DM. Heterogeneity in vascular smooth muscle cell embryonic origin in relation to adult structure, physiology, and disease. Dev Dyn 2015; 244:410-6. [PMID: 25546231 DOI: 10.1002/dvdy.24247] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 12/18/2014] [Accepted: 12/19/2014] [Indexed: 12/22/2022] Open
Abstract
Regional differences in vascular physiology and disease response exist throughout the vascular tree. While these differences in physiology and disease correspond to regional vascular environmental conditions, there is also compelling evidence that the embryonic origins of the smooth muscle inherent to the vessels may play a role. Here, we review what is known regarding the role of embryonic origin of vascular smooth muscle cells during vascular development. The focus of this review is to highlight the heterogeneity in the origins of vascular smooth muscle cells and the resulting regional physiologies of the vessels. Our goal is to stimulate future investigation into this area and provide a better understanding of vascular organogenesis and disease. .
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Affiliation(s)
- Elise R Pfaltzgraff
- Division of Cardiovascular Medicine, Vanderbilt University, Nashville, Tennessee
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40
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Wang X, Astrof S. Neural crest cell-autonomous roles of fibronectin in cardiovascular development. Development 2015; 143:88-100. [PMID: 26552887 DOI: 10.1242/dev.125286] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 11/03/2015] [Indexed: 12/13/2022]
Abstract
The chemical and mechanical properties of extracellular matrices (ECMs) modulate diverse aspects of cellular fates; however, how regional heterogeneity in ECM composition regulates developmental programs is not well understood. We discovered that fibronectin 1 (Fn1) is expressed in strikingly non-uniform patterns during mouse development, suggesting that regionalized synthesis of the ECM plays cell-specific regulatory roles during embryogenesis. To test this hypothesis, we ablated Fn1 in the neural crest (NC), a population of multi-potent progenitors expressing high levels of Fn1. We found that Fn1 synthesized by the NC mediated morphogenesis of the aortic arch artery and differentiation of NC cells into vascular smooth muscle cells (VSMCs) by regulating Notch signaling. We show that NC Fn1 signals in an NC cell-autonomous manner through integrin α5β1 expressed by the NC, leading to activation of Notch and differentiation of VSMCs. Our data demonstrate an essential role of the localized synthesis of Fn1 in cardiovascular development and spatial regulation of Notch signaling.
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Affiliation(s)
- Xia Wang
- Sidney Kimmel Medical College of Thomas Jefferson University, Department of Medicine, Center for Translational Medicine, 1020 Locust Street, Philadelphia, PA 19107, USA
| | - Sophie Astrof
- Sidney Kimmel Medical College of Thomas Jefferson University, Department of Medicine, Center for Translational Medicine, 1020 Locust Street, Philadelphia, PA 19107, USA
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41
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Swartz MF, Simon B, Atallah-Yunes N, Cholette JM, Orie J, Gensini F, Alfieris GM. Distal Transverse Arch to Left Carotid Artery Ratio Helps to Identify Infants With Aortic Arch Hypoplasia. Ann Thorac Surg 2015. [PMID: 26212512 DOI: 10.1016/j.athoracsur.2015.04.107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Aortic coarctation (CoA) with concomitant aortic arch hypoplasia (AAH) is associated with an increased risk of hypertension after surgical repair. The differentiation of CoA with or without AAH may be critical to delineate the ideal surgical approach that best ameliorates postoperative hypertension. Since 2000, we have defined CoA with AAH when the diameter of the distal transverse aortic arch is equal to or less than the diameter of the left carotid artery. We hypothesized that, based on our definition, aortic tissue from infants having CoA with AAH would demonstrate distinct genetic expression patterns as compared with infants having CoA alone. METHODS From 6 infants (AAH, 3; CoA, 3), an Affymetrix 1.0 genome array identified genes in the coarctation/arch region that were differentially expressed between infants having CoA with AAH versus CoA alone. Reverse transcription polymerase chain reaction validated genetic differences from a cohort of 21 infants (CoA with AAH, 10; CoA, 11). To evaluate the clinical outcomes based on our definition of CoA with AAH, we reviewed infants repaired using this algorithm from 2000 to 2010. RESULTS Microarray data demonstrated genes differentially expressed between groups. Reverse transcription polymerase chain reaction confirmed that CoA with AAH was associated with an increased expression of genes involved in cardiac and vascular development and growth, including hepsin, fibroblast growth factor-18, and T-box 2. The clinical outcomes of 79 infants (AAH, 26; CoA, 53) demonstrated that 90.1% were free of hypertension at 13 years when managed with this surgical strategy. CONCLUSIONS These findings provide evidence that the ratio of the diameter of the distal transverse arch to the left carotid artery may be helpful to identify CoA with AAH and, when used to delineate the surgical approach, may minimize hypertension.
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Affiliation(s)
- Michael F Swartz
- Pediatric Cardiac Consortium of Upstate New York, Rochester, New York; University of Rochester Medical Center, Strong Memorial Hospital, Rochester, New York.
| | - Bartholomew Simon
- University of Rochester Medical Center, Strong Memorial Hospital, Rochester, New York
| | - Nader Atallah-Yunes
- Pediatric Cardiac Consortium of Upstate New York, Rochester, New York; University of Rochester Medical Center, Strong Memorial Hospital, Rochester, New York
| | - Jill M Cholette
- Pediatric Cardiac Consortium of Upstate New York, Rochester, New York; University of Rochester Medical Center, Strong Memorial Hospital, Rochester, New York
| | - Joseph Orie
- Pediatric Cardiac Consortium of Upstate New York, Rochester, New York
| | - Francisco Gensini
- Pediatric Cardiac Consortium of Upstate New York, Rochester, New York; University of Rochester Medical Center, Strong Memorial Hospital, Rochester, New York
| | - George M Alfieris
- Pediatric Cardiac Consortium of Upstate New York, Rochester, New York; University of Rochester Medical Center, Strong Memorial Hospital, Rochester, New York
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LaDisa JF, Bozdag S, Olson J, Ramchandran R, Kersten JR, Eddinger TJ. Gene Expression in Experimental Aortic Coarctation and Repair: Candidate Genes for Therapeutic Intervention? PLoS One 2015. [PMID: 26207811 PMCID: PMC4514739 DOI: 10.1371/journal.pone.0133356] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Coarctation of the aorta (CoA) is a constriction of the proximal descending thoracic aorta and is one of the most common congenital cardiovascular defects. Treatments for CoA improve life expectancy, but morbidity persists, particularly due to the development of chronic hypertension (HTN). Identifying the mechanisms of morbidity is difficult in humans due to confounding variables such as age at repair, follow-up duration, coarctation severity and concurrent anomalies. We previously developed an experimental model that replicates aortic pathology in humans with CoA without these confounding variables, and mimics correction at various times using dissolvable suture. Here we present the most comprehensive description of differentially expressed genes (DEGs) to date from the pathology of CoA, which were obtained using this model. Aortic samples (n=4/group) from the ascending aorta that experiences elevated blood pressure (BP) from induction of CoA, and restoration of normal BP after its correction, were analyzed by gene expression microarray, and enriched genes were converted to human orthologues. 51 DEGs with >6 fold-change (FC) were used to determine enriched Gene Ontology terms, altered pathways, and association with National Library of Medicine Medical Subject Headers (MeSH) IDs for HTN, cardiovascular disease (CVD) and CoA. The results generated 18 pathways, 4 of which (cell cycle, immune system, hemostasis and metabolism) were shared with MeSH ID’s for HTN and CVD, and individual genes were associated with the CoA MeSH ID. A thorough literature search further uncovered association with contractile, cytoskeletal and regulatory proteins related to excitation-contraction coupling and metabolism that may explain the structural and functional changes observed in our experimental model, and ultimately help to unravel the mechanisms responsible for persistent morbidity after treatment for CoA.
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Affiliation(s)
- John F. LaDisa
- Department of Biomedical Engineering, Marquette University, Milwaukee, Wisconsin, United States of America
- Department of Medicine, Division of Cardiovascular Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- Herma Heart Center, Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
- * E-mail:
| | - Serdar Bozdag
- Department of Mathematics, Statistics, and Computer Science, Marquette University, Milwaukee, Wisconsin, United States of America
| | - Jessica Olson
- Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Ramani Ramchandran
- Departments of Pediatrics and Obstetrics and Gynecology, Medical College of Wisconsin and the Developmental Vascular Biology Program, Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Judy R. Kersten
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Thomas J. Eddinger
- Department of Biological Sciences, Marquette University, Milwaukee, Wisconsin, United States of America
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Kim J, Procknow JD, Yanagisawa H, Wagenseil JE. Differences in genetic signaling, and not mechanical properties of the wall, are linked to ascending aortic aneurysms in fibulin-4 knockout mice. Am J Physiol Heart Circ Physiol 2015; 309:H103-13. [PMID: 25934097 PMCID: PMC4491524 DOI: 10.1152/ajpheart.00178.2015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 04/30/2015] [Indexed: 12/21/2022]
Abstract
Fibulin-4 is an extracellular matrix protein that is essential for proper assembly of arterial elastic fibers. Mutations in fibulin-4 cause cutis laxa with thoracic aortic aneurysms (TAAs). Sixty percent of TAAs occur in the ascending aorta (AA). Newborn mice lacking fibulin-4 (Fbln4(-/-)) have aneurysms in the AA, but narrowing in the descending aorta (DA), and are a unique model to investigate locational differences in aneurysm susceptibility. We measured mechanical behavior and gene expression of AA and DA segments in newborn Fbln4(-/-) and Fbln4(+/+) mice. Fbln4(-/-) AA has increased diameters compared with Fbln4(+/+) AA and Fbln4(-/-) DA at most applied pressures, confirming genotypic and locational specificity of the aneurysm phenotype. When diameter compliance and tangent modulus were calculated from the mechanical data, we found few significant differences between genotypes, suggesting that the mechanical response to incremental diameter changes is similar, despite the fragmented elastic fibers in Fbln4(-/-) aortas. Fbln4(-/-) aortas showed a trend toward increased circumferential stretch, which may be transmitted to smooth muscle cells (SMCs) in the wall. Gene expression data suggest activation of pathways for SMC proliferation and inflammation in Fbln4(-/-) aortas compared with Fbln4(+/+). Additional genes in both pathways, as well as matrix metalloprotease-8 (Mmp8), are upregulated specifically in Fbln4(-/-) AA compared with Fbln4(+/+) AA and Fbln4(-/-) DA. Mmp8 is a neutrophil collagenase that targets type 1 collagen, and upregulation may be necessary to allow diameter expansion in Fbln4(-/-) AA. Our results provide molecular and mechanical targets for further investigation in aneurysm pathogenesis.
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MESH Headings
- Acute-Phase Proteins/genetics
- Acute-Phase Proteins/metabolism
- Animals
- Animals, Newborn
- Aorta/metabolism
- Aorta/physiopathology
- Aorta/ultrastructure
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/physiopathology
- Aorta, Thoracic/ultrastructure
- Aortic Aneurysm, Thoracic/genetics
- Calcium-Binding Proteins
- Collagen Type VIII/genetics
- Collagen Type VIII/metabolism
- Cyclooxygenase 2/genetics
- Cyclooxygenase 2/metabolism
- Elastic Modulus
- Epiregulin/genetics
- Epiregulin/metabolism
- Extracellular Matrix Proteins/genetics
- Gene Expression Profiling
- Heparin-binding EGF-like Growth Factor/genetics
- Heparin-binding EGF-like Growth Factor/metabolism
- Matrix Metalloproteinase 8/genetics
- Matrix Metalloproteinase 8/metabolism
- Mice
- Mice, Knockout
- Microscopy, Electron
- Muscle Proteins/genetics
- Muscle Proteins/metabolism
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/ultrastructure
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- RNA, Messenger/metabolism
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Receptors, G-Protein-Coupled
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Serpins/genetics
- Serpins/metabolism
- Up-Regulation
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Affiliation(s)
- Jungsil Kim
- Department of Mechanical Engineering and Materials Science, Washington University, St. Louis, Missouri
| | - Jesse D Procknow
- Department of Mechanical Engineering and Materials Science, Washington University, St. Louis, Missouri
| | - Hiromi Yanagisawa
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas; and Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Japan
| | - Jessica E Wagenseil
- Department of Mechanical Engineering and Materials Science, Washington University, St. Louis, Missouri;
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Abstract
Intrarenal autoregulatory mechanisms maintain renal blood flow (RBF) and glomerular filtration rate (GFR) independent of renal perfusion pressure (RPP) over a defined range (80-180 mmHg). Such autoregulation is mediated largely by the myogenic and the macula densa-tubuloglomerular feedback (MD-TGF) responses that regulate preglomerular vasomotor tone primarily of the afferent arteriole. Differences in response times allow separation of these mechanisms in the time and frequency domains. Mechanotransduction initiating the myogenic response requires a sensing mechanism activated by stretch of vascular smooth muscle cells (VSMCs) and coupled to intracellular signaling pathways eliciting plasma membrane depolarization and a rise in cytosolic free calcium concentration ([Ca(2+)]i). Proposed mechanosensors include epithelial sodium channels (ENaC), integrins, and/or transient receptor potential (TRP) channels. Increased [Ca(2+)]i occurs predominantly by Ca(2+) influx through L-type voltage-operated Ca(2+) channels (VOCC). Increased [Ca(2+)]i activates inositol trisphosphate receptors (IP3R) and ryanodine receptors (RyR) to mobilize Ca(2+) from sarcoplasmic reticular stores. Myogenic vasoconstriction is sustained by increased Ca(2+) sensitivity, mediated by protein kinase C and Rho/Rho-kinase that favors a positive balance between myosin light-chain kinase and phosphatase. Increased RPP activates MD-TGF by transducing a signal of epithelial MD salt reabsorption to adjust afferent arteriolar vasoconstriction. A combination of vascular and tubular mechanisms, novel to the kidney, provides for high autoregulatory efficiency that maintains RBF and GFR, stabilizes sodium excretion, and buffers transmission of RPP to sensitive glomerular capillaries, thereby protecting against hypertensive barotrauma. A unique aspect of the myogenic response in the renal vasculature is modulation of its strength and speed by the MD-TGF and by a connecting tubule glomerular feedback (CT-GF) mechanism. Reactive oxygen species and nitric oxide are modulators of myogenic and MD-TGF mechanisms. Attenuated renal autoregulation contributes to renal damage in many, but not all, models of renal, diabetic, and hypertensive diseases. This review provides a summary of our current knowledge regarding underlying mechanisms enabling renal autoregulation in health and disease and methods used for its study.
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Affiliation(s)
- Mattias Carlström
- Department of Medicine, Division of Nephrology and Hypertension and Hypertension, Kidney and Vascular Research Center, Georgetown University, Washington, District of Columbia; Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; and Department of Cell Biology and Physiology, UNC Kidney Center, and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Christopher S Wilcox
- Department of Medicine, Division of Nephrology and Hypertension and Hypertension, Kidney and Vascular Research Center, Georgetown University, Washington, District of Columbia; Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; and Department of Cell Biology and Physiology, UNC Kidney Center, and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - William J Arendshorst
- Department of Medicine, Division of Nephrology and Hypertension and Hypertension, Kidney and Vascular Research Center, Georgetown University, Washington, District of Columbia; Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; and Department of Cell Biology and Physiology, UNC Kidney Center, and McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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45
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Vucovich MM, Cotton RB, Shelton EL, Goettel JA, Ehinger NJ, Poole SD, Brown N, Wynn JL, Paria BC, Slaughter JC, Clark RH, Rojas MA, Reese J. Aminoglycoside-mediated relaxation of the ductus arteriosus in sepsis-associated PDA. Am J Physiol Heart Circ Physiol 2014; 307:H732-40. [PMID: 24993047 PMCID: PMC4187398 DOI: 10.1152/ajpheart.00838.2013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 06/27/2014] [Indexed: 11/22/2022]
Abstract
Sepsis is strongly associated with patency of the ductus arteriosus (PDA) in critically ill newborns. Inflammation and the aminoglycoside antibiotics used to treat neonatal sepsis cause smooth muscle relaxation, but their contribution to PDA is unknown. We examined whether: 1) lipopolysaccharide (LPS) or inflammatory cytokines cause relaxation of the ex vivo mouse DA; 2) the aminoglycosides gentamicin, tobramycin, or amikacin causes DA relaxation; and 3) newborn infants treated with aminoglycosides have an increased risk of symptomatic PDA (sPDA). Changes in fetal mouse DA tone were measured by pressure myography in response to LPS, TNF-α, IFN-γ, macrophage-inflammatory protein 2, IL-15, IL-13, CXC chemokine ligand 12, or three aminoglycosides. A clinical database of inborn patients of all gestations was analyzed for association between sPDA and aminoglycoside treatment. Contrary to expectation, neither LPS nor any of the inflammatory mediators caused DA relaxation. However, each of the aminoglycosides caused concentration-dependent vasodilation in term and preterm mouse DAs. Pretreatment with indomethacin and N-(G)-nitro-L-arginine methyl ester did not prevent gentamicin-induced DA relaxation. Gentamicin-exposed DAs developed less oxygen-induced constriction than unexposed DAs. Among 488,349 infants who met the study criteria, 40,472 (8.3%) had sPDA. Confounder-adjusted odds of sPDA were higher in gentamicin-exposed infants, <25 wk and >32 wk. Together, these findings suggest that factors other than inflammation contribute to PDA. Aminoglycoside-induced vasorelaxation and inhibition of oxygen-induced DA constriction support the paradox that antibiotic treatment of sepsis may contribute to DA relaxation. This association was also found in newborn infants, suggesting that antibiotic selection may be an important consideration in efforts to reduce sepsis-associated PDA.
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Affiliation(s)
- Megan M Vucovich
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - Robert B Cotton
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - Elaine L Shelton
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - Jeremy A Goettel
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - Noah J Ehinger
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - Stanley D Poole
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - Naoko Brown
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - James L Wynn
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - Bibhash C Paria
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - James C Slaughter
- Department of Biostatistics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | | | - Mario A Rojas
- Department of Pediatrics, Wake Forest University School of Medicine, Winston Salem, North Carolina
| | - Jeff Reese
- Department of Pediatrics, Vanderbilt University School of Medicine and the Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee;
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46
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Shelton EL, Ector G, Galindo CL, Hooper CW, Brown N, Wilkerson I, Pfaltzgraff ER, Paria BC, Cotton RB, Stoller JZ, Reese J. Transcriptional profiling reveals ductus arteriosus-specific genes that regulate vascular tone. Physiol Genomics 2014; 46:457-66. [PMID: 24790087 DOI: 10.1152/physiolgenomics.00171.2013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Failure of the ductus arteriosus (DA) to close at birth can lead to serious complications. Conversely, certain profound congenital cardiac malformations require the DA to be patent until corrective surgery can be performed. In each instance, clinicians have a very limited repertoire of therapeutic options at their disposal - indomethacin or ibuprofen to close a patent DA (PDA) and prostaglandin E1 to maintain patency of the DA. Neither treatment is specific to the DA and both may have deleterious off-target effects. Therefore, more therapeutic options specifically targeted to the DA should be considered. We hypothesized the DA possesses a unique genetic signature that would set it apart from other vessels. A microarray was used to compare the genetic profiles of the murine DA and ascending aorta (AO). Over 4,000 genes were differentially expressed between these vessels including a subset of ion channel-related genes. Specifically, the alpha and beta subunits of large-conductance calcium-activated potassium (BKCa) channels are enriched in the DA. Gain- and loss-of-function studies showed inhibition of BKCa channels caused the DA to constrict, while activation caused DA relaxation even in the presence of O2. This study identifies subsets of genes that are enriched in the DA that may be used to develop DA-specific drugs. Ion channels that regulate DA tone, including BKCa channels, are promising targets. Specifically, BKCa channel agonists like NS1619 maintain DA patency even in the presence of O2 and may be clinically useful.
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Affiliation(s)
- Elaine L Shelton
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee;
| | - Gerren Ector
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Cristi L Galindo
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee; and
| | - Christopher W Hooper
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Naoko Brown
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Irene Wilkerson
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Elise R Pfaltzgraff
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Bibhash C Paria
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Robert B Cotton
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Jason Z Stoller
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Jeff Reese
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
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