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Chakraborty A, Li Y, Zhang C, Li Y, Rebello KR, Li S, Xu S, Vasquez HG, Zhang L, Luo W, Wang G, Chen K, Coselli JS, LeMaire SA, Shen YH. Epigenetic Induction of Smooth Muscle Cell Phenotypic Alterations in Aortic Aneurysms and Dissections. Circulation 2023; 148:959-977. [PMID: 37555319 PMCID: PMC10529114 DOI: 10.1161/circulationaha.123.063332] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 07/17/2023] [Indexed: 08/10/2023]
Abstract
BACKGROUND Smooth muscle cell (SMC) phenotypic switching has been increasingly detected in aortic aneurysm and dissection (AAD) tissues. However, the diverse SMC phenotypes in AAD tissues and the mechanisms driving SMC phenotypic alterations remain to be identified. METHODS We examined the transcriptomic and epigenomic dynamics of aortic SMC phenotypic changes in mice with angiotensin II-induced AAD by using single-cell RNA sequencing and single-cell sequencing assay for transposase-accessible chromatin. SMC phenotypic alteration in aortas from patients with ascending thoracic AAD was examined by using single-cell RNA sequencing analysis. RESULTS Single-cell RNA sequencing analysis revealed that aortic stress induced the transition of SMCs from a primary contractile phenotype to proliferative, extracellular matrix-producing, and inflammatory phenotypes. Lineage tracing showed the complete transformation of SMCs to fibroblasts and macrophages. Single-cell sequencing assay for transposase-accessible chromatin analysis indicated that these phenotypic alterations were controlled by chromatin remodeling marked by the reduced chromatin accessibility of contractile genes and the induced chromatin accessibility of genes involved in proliferation, extracellular matrix, and inflammation. IRF3 (interferon regulatory factor 3), a proinflammatory transcription factor activated by cytosolic DNA, was identified as a key driver of the transition of aortic SMCs from a contractile phenotype to an inflammatory phenotype. In cultured SMCs, cytosolic DNA signaled through its sensor STING (stimulator of interferon genes)-TBK1 (tank-binding kinase 1) to activate IRF3, which bound and recruited EZH2 (enhancer of zeste homolog 2) to contractile genes to induce repressive H3K27me3 modification and gene suppression. In contrast, double-stranded DNA-STING-IRF3 signaling induced inflammatory gene expression in SMCs. In Sting-/- mice, the aortic stress-induced transition of SMCs into an inflammatory phenotype was prevented, and SMC populations were preserved. Finally, profound SMC phenotypic alterations toward diverse directions were detected in human ascending thoracic AAD tissues. CONCLUSIONS Our study reveals the dynamic epigenetic induction of SMC phenotypic alterations in AAD. DNA damage and cytosolic leakage drive SMCs from a contractile phenotype to an inflammatory phenotype.
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Affiliation(s)
- Abhijit Chakraborty
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Yanming Li
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Chen Zhang
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Yang Li
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Kimberly R Rebello
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Shengyu Li
- Center for Bioinformatics and Computational Biology, Houston Methodist Research Institute, TX (S.L., G.W.)
| | - Samantha Xu
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
| | - Hernan G Vasquez
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Lin Zhang
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Wei Luo
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Guangyu Wang
- Center for Bioinformatics and Computational Biology, Houston Methodist Research Institute, TX (S.L., G.W.)
| | - Kaifu Chen
- Department of Pediatrics, Harvard Medical School, Boston, MA (K.C.)
| | - Joseph S Coselli
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Cardiovascular Research Institute (J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Scott A LeMaire
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Cardiovascular Research Institute (J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston (A.C., Y.L., C.Z., K.R.R., Y.L., W.L., H.G.V., L.Z., J.S.C., S.A.L.)
| | - Ying H Shen
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (A.C., Y.L., C.Z., K.R.R., Y.L., S.X., W.L., H.G.V., L.Z., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Cardiovascular Research Institute (J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
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Moorhead WJ, Chu CC, Cuevas RA, Callahan J, Wong R, Regan C, Boufford CK, Sur S, Liu M, Gomez D, MacTaggart JN, Kamenskiy A, Boehm M, St Hilaire C. Dysregulation of FOXO1 (Forkhead Box O1 Protein) Drives Calcification in Arterial Calcification due to Deficiency of CD73 and Is Present in Peripheral Artery Disease. Arterioscler Thromb Vasc Biol 2020; 40:1680-1694. [PMID: 32375544 PMCID: PMC7310306 DOI: 10.1161/atvbaha.119.313765] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Supplemental Digital Content is available in the text. Objective: The recessive disease arterial calcification due to deficiency of CD73 (ACDC) presents with extensive nonatherosclerotic medial layer calcification in lower extremity arteries. Lack of CD73 induces a concomitant increase in TNAP (tissue nonspecific alkaline phosphatase; ALPL), a key enzyme in ectopic mineralization. Our aim was to investigate how loss of CD73 activity leads to increased ALPL expression and calcification in CD73-deficient patients and assess whether this mechanism may apply to peripheral artery disease calcification. Approach and Results: We previously developed a patient-specific disease model using ACDC primary dermal fibroblasts that recapitulates the calcification phenotype in vitro. We found that lack of CD73-mediated adenosine signaling reduced cAMP production and resulted in increased activation of AKT. The AKT/mTOR (mammalian target of rapamycin) axis blocks autophagy and inducing autophagy prevented calcification; however, we did not observe autophagy defects in ACDC cells. In silico analysis identified a putative FOXO1 (forkhead box O1 protein) binding site in the human ALPL promoter. Exogenous AMP induced FOXO1 nuclear localization in ACDC but not in control cells, and this was prevented with a cAMP analogue or activation of A2a/2b adenosine receptors. Inhibiting FOXO1 reduced ALPL expression and TNAP activity and prevented calcification. Mutating the FOXO1 binding site reduced ALPL promoter activation. Importantly, we provide evidence that non-ACDC calcified femoropopliteal arteries exhibit decreased CD73 and increased FOXO1 levels compared with control arteries. Conclusions: These data show that lack of CD73-mediated cAMP signaling promotes expression of the human ALPL gene via a FOXO1-dependent mechanism. Decreased CD73 and increased FOXO1 was also observed in more common peripheral artery disease calcification.
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Affiliation(s)
- William J Moorhead
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Claire C Chu
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Rolando A Cuevas
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Jack Callahan
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Ryan Wong
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Cailyn Regan
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Camille K Boufford
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Swastika Sur
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Mingjun Liu
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Delphine Gomez
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.)
| | - Jason N MacTaggart
- Department of Surgery, University of Nebraska Medical Center, Omaha (J.N.M.)
| | | | - Manfred Boehm
- Laboratory of Cardiovascular Regenerative Medicine, National Heart, Lung, and Blood Institute, Bethesda, MD (M.B.)
| | - Cynthia St Hilaire
- From the Department of Medicine, Division of Cardiology, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, PA (W.J.M., C.C.C., R.A.C., J.C., R.W., C.R., C.K.B., S.S., M.L., D.G., C.S.H.).,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, PA (C.S.H.)
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Joolharzadeh P, St Hilaire C. CD73 (Cluster of Differentiation 73) and the Differences Between Mice and Humans. Arterioscler Thromb Vasc Biol 2020; 39:339-348. [PMID: 30676071 DOI: 10.1161/atvbaha.118.311579] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
As vascular disease is complex and the various manifestations are influenced by differences in vascular bed architecture, exposure to shear and mechanical forces, cell types involved, and inflammatory responses, in vivo models are necessary to recapitulate the complex physiology and dynamic cellular interactions during pathogenesis. Murine knockout models are commonly used tools for investigators to study the role of a specific gene or pathway in multifaceted disease traits. Although valuable, these models are not perfect, and this is particularly true in regard to CD73 (cluster of differentiation 73), the extracellular enzyme that generates adenosine from AMP. At baseline, CD73-deficient mice do not present with an overt phenotype, whereas CD73-deficient humans present with the complex phenotype of vascular calcification, arteriomegaly and tortuosity, and calcification in small joints. In this review, we highlight the differences between the mouse and human systems and discuss the potential to leverage findings in mice to inform us on the human conditions.
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Affiliation(s)
- Pouya Joolharzadeh
- From the Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, PA; and Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA
| | - Cynthia St Hilaire
- From the Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, PA; and Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA
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Kostina A, Semenova D, Kostina D, Uspensky V, Kostareva A, Malashicheva A. Human aortic endothelial cells have osteogenic Notch-dependent properties in co-culture with aortic smooth muscle cells. Biochem Biophys Res Commun 2019; 514:462-468. [PMID: 31056255 DOI: 10.1016/j.bbrc.2019.04.177] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/27/2019] [Indexed: 01/14/2023]
Abstract
Cardiovascular calcification is one of the leading reasons of morbidity and mortality in Western countries and has many similarities to osteogenesis. The role of smooth muscle calcific transformation is well established for atherogenic lesions, but mechanisms driving initial stages of proosteogenic cell fate commitment in big vessels remain poorly understood. The role of endothelial and underlying interstitial cell interaction in driving cellular decisions is emerging from recent studies. The aim of this study was to analyze co-culture of endothelial and smooth muscle cells in vitro in acquiring proosteogenic phenotype. We co-cultured human aortic endothelial cells (EC) and human aortic smooth muscle cells (SMC) and analyzed osteogenic phenotype by ALP staining and proosteogenic gene expression by qPCR in co-cultures and in separate cellular types after magnetic CD31-sorting. In EC and SMC co-cultures osteogenic phenotype was induced as well as activated expression of RUNX2, POSTIN, BMP2/4, SOX5, COL1A SMC; co-culture of EC with SMC induced NOTCH1, NOTCH3, NOTCH4 and HEY1 expression; Notch activation by lentiviral activated Notch intracellular domain induced expression of RUNX2, OPN, POSTIN in SMC; NOTCH1 and NOTCH3 and HEY1 were selectively induced in EC during co-culture. We conclude that endothelial cells are capable of driving smooth muscle calcification via cell-cell contact and activation of Notch signaling.
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Affiliation(s)
- Aleksandra Kostina
- Almazov Federal Medical Research Centre, Saint-Petersburg, Russia; Institute of Cytology, Russian Academy of Sciences, Saint-Petersburg, Russia
| | - Daria Semenova
- Almazov Federal Medical Research Centre, Saint-Petersburg, Russia; Institute of Cytology, Russian Academy of Sciences, Saint-Petersburg, Russia; Saint-Petersburg State University, Saint-Petersburg, Russia
| | - Daria Kostina
- Almazov Federal Medical Research Centre, Saint-Petersburg, Russia; Institute of Cytology, Russian Academy of Sciences, Saint-Petersburg, Russia; Peter the Great Saint-Petersburg Polytechnic University, Department of Medical Physics, Saint-Petersburg, Russia
| | | | - Anna Kostareva
- Almazov Federal Medical Research Centre, Saint-Petersburg, Russia
| | - Anna Malashicheva
- Almazov Federal Medical Research Centre, Saint-Petersburg, Russia; Institute of Cytology, Russian Academy of Sciences, Saint-Petersburg, Russia; Saint-Petersburg State University, Saint-Petersburg, Russia.
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5
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Nürnberg C, Kociok N, Joussen AM. Targeting myeloid cells in ischemic retinal vascular diseases. Graefes Arch Clin Exp Ophthalmol 2018; 256:1799-1800. [PMID: 30132279 DOI: 10.1007/s00417-018-4107-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 08/13/2018] [Indexed: 10/28/2022] Open
Affiliation(s)
- Christina Nürnberg
- Department of Ophthalmology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany. .,Department of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
| | - Norbert Kociok
- Department of Ophthalmology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Antonia M Joussen
- Department of Ophthalmology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
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6
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Divers J, Palmer ND, Langefeld CD, Brown WM, Lu L, Hicks PJ, Smith SC, Xu J, Terry JG, Register TC, Wagenknecht LE, Parks JS, Ma L, Chan GC, Buxbaum SG, Correa A, Musani S, Wilson JG, Taylor HA, Bowden DW, Carr JJ, Freedman BI. Genome-wide association study of coronary artery calcified atherosclerotic plaque in African Americans with type 2 diabetes. BMC Genet 2017; 18:105. [PMID: 29221444 PMCID: PMC5723099 DOI: 10.1186/s12863-017-0572-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 11/23/2017] [Indexed: 11/26/2022] Open
Abstract
Background Coronary artery calcified atherosclerotic plaque (CAC) predicts cardiovascular disease (CVD). Despite exposure to more severe conventional CVD risk factors, African Americans (AAs) are less likely to develop CAC, and when they do, have markedly lower levels than European Americans. Genetic factors likely contribute to the observed ethnic differences. To identify genes associated with CAC in AAs with type 2 diabetes (T2D), a genome-wide association study (GWAS) was performed using the Illumina 5 M chip in 691 African American-Diabetes Heart Study participants (AA-DHS), with replication in 205 Jackson Heart Study (JHS) participants with T2D. Genetic association tests were performed on the genotyped and 1000 Genomes-imputed markers separately for each study, and combined in a meta-analysis. Results Single nucleotide polymorphisms (SNPs), rs11353135 (2q22.1), rs16879003 (6p22.3), rs5014012, rs58071836 and rs10244825 (all on chromosome 7), rs10918777 (9q31.2), rs13331874 (16p13.3) and rs4459623 (18q12.1) were associated with presence and/or quantity of CAC in the AA-DHS and JHS, with meta-analysis p-values ≤8.0 × 10−7. The strongest result in AA-DHS alone was rs6491315 in the 13q32.1 region (parameter estimate (SE) = −1.14 (0.20); p-value = 9.1 × 10−9). This GWAS peak replicated a previously reported AA-DHS CAC admixture signal (rs7492028, LOD score 2.8). Conclusions Genetic association between SNPs on chromosomes 2, 6, 7, 9, 16 and 18 and CAC were detected in AAs with T2D from AA-DHS and replicated in the JHS. These data support a role for genetic variation on these chromosomes as contributors to CAC in AAs with T2D, as well as to variation in CAC between populations of African and European ancestry. Electronic supplementary material The online version of this article (10.1186/s12863-017-0572-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jasmin Divers
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157-1053, USA.
| | - Nicholette D Palmer
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Carl D Langefeld
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157-1053, USA
| | - W Mark Brown
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157-1053, USA
| | - Lingyi Lu
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157-1053, USA
| | - Pamela J Hicks
- Center for Genomics and Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - S Carrie Smith
- Center for Genomics and Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Jianzhao Xu
- Center for Genomics and Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - James G Terry
- Department of Radiology and Vanderbilt Center for Translation and Clinical Cardiovascular Research (VTRACC), Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Thomas C Register
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Lynne E Wagenknecht
- Department of Epidemiology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - John S Parks
- Department of Internal Medicine-Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Lijun Ma
- Department of Internal Medicine-Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Gary C Chan
- Department of Internal Medicine-Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Sarah G Buxbaum
- School of Public Health Initiative, Jackson State University, Jackson, MS, USA
| | | | | | - James G Wilson
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, USA
| | - Herman A Taylor
- Morehouse School of Medicine, Morehouse College, Atlanta, Georgia
| | - Donald W Bowden
- Center for Genomics and Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - John Jeffrey Carr
- Department of Radiology and Vanderbilt Center for Translation and Clinical Cardiovascular Research (VTRACC), Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Barry I Freedman
- Department of Internal Medicine-Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
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Ignatieva E, Kostina D, Irtyuga O, Uspensky V, Golovkin A, Gavriliuk N, Moiseeva O, Kostareva A, Malashicheva A. Mechanisms of Smooth Muscle Cell Differentiation Are Distinctly Altered in Thoracic Aortic Aneurysms Associated with Bicuspid or Tricuspid Aortic Valves. Front Physiol 2017; 8:536. [PMID: 28790933 PMCID: PMC5524772 DOI: 10.3389/fphys.2017.00536] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 07/10/2017] [Indexed: 12/30/2022] Open
Abstract
Cellular and molecular mechanisms of thoracic aortic aneurysm are not clear and therapeutic approaches are mostly absent. Thoracic aortic aneurysm is associated with defective differentiation of smooth muscle cells (SMC) of aortic wall. Bicuspid aortic valve (BAV) comparing to tricuspid aortic valve (TAV) significantly predisposes to a risk of thoracic aortic aneurysms. It has been suggested recently that BAV-associated aortopathies represent a separate pathology comparing to TAV-associated dilations. The only proven candidate gene that has been associated with BAV remains NOTCH1. In this study we tested the hypothesis that Notch-dependent and related TGF-β and BMP differentiation pathways are differently altered in aortic SMC of BAV- vs. TAV-associated aortic aneurysms. SMC were isolated from aortic tissues of the patients with BAV- or TAV-associated aortic aneurysms and from healthy donors used as controls. Gene expression was verified by qPCR and Western blotting. For TGF-β induced differentiation SMC were treated with the medium containing TGF-β1. To induce proosteogenic signaling we cultured SMC in the presence of specific osteogenic factors. Notch-dependent differentiation was induced via lentiviral transduction of SMC with activated Notch1 domain. MYOCD expression, a master gene of SMC differentiation, was down regulated in SMC of both BAV and TAV patients. Discriminant analysis of gene expression patterns included a set of contractile genes specific for SMC, Notch-related genes and proosteogenic genes and revealed that control cells form a separate cluster from both BAV and TAV group, while BAV- and TAV-derived SMC are partially distinct with some overlapping. In differentiation experiments TGF-β caused similar patterns of target gene expression for BAV- and TAV derived cells while the induction was higher in the diseased cells than in control ones. Osteogenic induction caused significant change in RUNX2 expression exclusively in BAV group. Notch activation induced significant ACTA2 expression also exclusively in BAV group. We show that Notch acts synergistically with proosteogenic factors to induce ACTA2 transcription and osteogenic differentiation. In conclusion we have found differences in responsiveness of SMC to Notch and to proosteogenic induction between BAV- and TAV-associated aortic aneurysms.
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Affiliation(s)
- Elena Ignatieva
- Laboratory of Molecular Cardiology, Almazov Federal Medical Research CentreSaint Petersburg, Russia
| | - Daria Kostina
- Laboratory of Molecular Cardiology, Almazov Federal Medical Research CentreSaint Petersburg, Russia.,Department of Medical Physics, Peter the Great Saint-Petersburg Polytechnic UniversitySaint Petersburg, Russia
| | - Olga Irtyuga
- Laboratory of Molecular Cardiology, Almazov Federal Medical Research CentreSaint Petersburg, Russia
| | - Vladimir Uspensky
- Laboratory of Molecular Cardiology, Almazov Federal Medical Research CentreSaint Petersburg, Russia
| | - Alexey Golovkin
- Laboratory of Molecular Cardiology, Almazov Federal Medical Research CentreSaint Petersburg, Russia
| | - Natalia Gavriliuk
- Laboratory of Molecular Cardiology, Almazov Federal Medical Research CentreSaint Petersburg, Russia
| | - Olga Moiseeva
- Laboratory of Molecular Cardiology, Almazov Federal Medical Research CentreSaint Petersburg, Russia
| | - Anna Kostareva
- Laboratory of Molecular Cardiology, Almazov Federal Medical Research CentreSaint Petersburg, Russia.,Laboratory of Bioinformatics and Genomics, Institute of Translational Medicine, ITMO UniversitySaint Petersburg, Russia
| | - Anna Malashicheva
- Laboratory of Molecular Cardiology, Almazov Federal Medical Research CentreSaint Petersburg, Russia.,Laboratory of Bioinformatics and Genomics, Institute of Translational Medicine, ITMO UniversitySaint Petersburg, Russia.,Faculty of Biology, Saint-Petersburg State UniversitySaint Petersburg, Russia
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