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Afshar Y, Yin O, Jeong A, Martinez G, Kim J, Ma F, Jang C, Tabatabaei S, You S, Tseng HR, Zhu Y, Krakow D. Placenta accreta spectrum disorder at single-cell resolution: a loss of boundary limits in the decidua and endothelium. Am J Obstet Gynecol 2024; 230:443.e1-443.e18. [PMID: 38296740 DOI: 10.1016/j.ajog.2023.10.001] [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: 06/06/2023] [Revised: 09/25/2023] [Accepted: 10/01/2023] [Indexed: 02/02/2024]
Abstract
BACKGROUND Placenta accreta spectrum disorders are associated with severe maternal morbidity and mortality. Placenta accreta spectrum disorders involve excessive adherence of the placenta preventing separation at birth. Traditionally, this condition has been attributed to excessive trophoblast invasion; however, an alternative view is a fundamental defect in decidual biology. OBJECTIVE This study aimed to gain insights into the understanding of placenta accreta spectrum disorder by using single-cell and spatially resolved transcriptomics to characterize cellular heterogeneity at the maternal-fetal interface in placenta accreta spectrum disorders. STUDY DESIGN To assess cellular heterogeneity and the function of cell types, single-cell RNA sequencing and spatially resolved transcriptomics were used. A total of 12 placentas were included, 6 placentas with placenta accreta spectrum disorder and 6 controls. For each placenta with placenta accreta spectrum disorder, multiple biopsies were taken at the following sites: placenta accreta spectrum adherent and nonadherent sites in the same placenta. Of note, 2 platforms were used to generate libraries: the 10× Chromium and NanoString GeoMX Digital Spatial Profiler for single-cell and spatially resolved transcriptomes, respectively. Differential gene expression analysis was performed using a suite of bioinformatic tools (Seurat and GeoMxTools R packages). Correction for multiple testing was performed using Clipper. In situ hybridization was performed with RNAscope, and immunohistochemistry was used to assess protein expression. RESULTS In creating a placenta accreta cell atlas, there were dramatic difference in the transcriptional profile by site of biopsy between placenta accreta spectrum and controls. Most of the differences were noted at the site of adherence; however, differences existed within the placenta between the adherent and nonadherent site of the same placenta in placenta accreta. Among all cell types, the endothelial-stromal populations exhibited the greatest difference in gene expression, driven by changes in collagen genes, namely collagen type III alpha 1 chain (COL3A1), growth factors, epidermal growth factor-like protein 6 (EGFL6), and hepatocyte growth factor (HGF), and angiogenesis-related genes, namely delta-like noncanonical Notch ligand 1 (DLK1) and platelet endothelial cell adhesion molecule-1 (PECAM1). Intraplacental tropism (adherent versus non-adherent sites in the same placenta) was driven by differences in endothelial-stromal cells with notable differences in bone morphogenic protein 5 (BMP5) and osteopontin (SPP1) in the adherent vs nonadherent site of placenta accreta spectrum. CONCLUSION Placenta accreta spectrum disorders were characterized at single-cell resolution to gain insight into the pathophysiology of the disease. An atlas of the placenta at single cell resolution in accreta allows for understanding in the biology of the intimate maternal and fetal interaction. The contributions of stromal and endothelial cells were demonstrated through alterations in the extracellular matrix, growth factors, and angiogenesis. Transcriptional and protein changes in the stroma of placenta accreta spectrum shift the etiologic explanation away from "invasive trophoblast" to "loss of boundary limits" in the decidua. Gene targets identified in this study may be used to refine diagnostic assays in early pregnancy, track disease progression over time, and inform therapeutic discoveries.
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Affiliation(s)
- Yalda Afshar
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA.
| | - Ophelia Yin
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA; Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, San Francisco, CA
| | - Anhyo Jeong
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - Guadalupe Martinez
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - Jina Kim
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Feiyang Ma
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA
| | - Christine Jang
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - Sarah Tabatabaei
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - Sungyong You
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, CA; Department of Computational Biomedicine, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Hsian-Rong Tseng
- Department of Molecular and Medical Pharmacology, California NanoSystems Institute, Crump Institute for Molecular Imaging, Los Angeles, CA
| | - Yazhen Zhu
- Department of Molecular and Medical Pharmacology, California NanoSystems Institute, Crump Institute for Molecular Imaging, Los Angeles, CA; Department of Pathology, University of California, Los Angeles, Los Angeles, CA
| | - Deborah Krakow
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA; Departments of Orthopedic Surgery and Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
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2
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Deng X, Zhou S, Hu Z, Gong F, Zhang J, Zhou C, Lan W, Gao X, Huang Y. Nicotinic Acid-Mediated Modulation of Metastasis-Associated Protein 1 Methylation and Inflammation in Brain Arteriovenous Malformation. Biomolecules 2023; 13:1495. [PMID: 37892177 PMCID: PMC10605296 DOI: 10.3390/biom13101495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/28/2023] [Accepted: 10/02/2023] [Indexed: 10/29/2023] Open
Abstract
We explored metastasis-associated protein 1 (MTA1) promoter methylation in the development of brain arteriovenous malformation (BAVM). The clinical data of 148 sex- and age-matched BAVMs and controls were collected, and the MTA1 DNA methylation in peripheral white blood cells (WBC) was assessed by bisulfite pyrosequencing. Among them, 18 pairs of case-control samples were used for WBC mRNA detection, 32 pairs were used for WBC MTA1 protein measurement, and 50 pairs were used for plasma inflammatory factor analysis. Lipopolysaccharide (LPS) treatment was used to induce an inflammatory injury cell model of human brain microvascular endothelial cells (BMECS). 5-Aza-2'-deoxycytidine (5-AZA), nicotinic acid (NA), and MTA1 siRNAs were used in functional experiments to examine BMECS behaviors. RT-qPCR, Western blot, and ELISA or cytometric bead arrays were used to measure the expression levels of MTA1, cytokines, and signaling pathway proteins in human blood or BMECS. The degree of MTA1 promoter methylation was reduced in BAVM compared with the control group and was inversely proportional to MTA1 expression. Plasma ApoA concentrations in BAVM patients were significantly lower than those in controls and correlated positively with MTA1 promoter methylation and negatively with MTA1 expression. The expression of cytokine was markedly higher in BAVM than in controls. Cell experiments showed that 5-AZA decreased the methylation level of MTA1 and increased the expression of MTA1 protein. LPS treatment significantly increased cytokine concentrations (p < 0.05). NA and MTA1 silencing could effectively reverse the LPS-mediated increase in IL-6 and TNF-α expression through the NF-κB pathway. Our study indicated that NA may regulate MTA1 expression by affecting promoter DNA methylation, improve vascular inflammation through the NF-κB pathway, and alleviate the pathological development of BAVM.
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Affiliation(s)
- Xinpeng Deng
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China; (X.D.); (S.Z.); (Z.H.); (F.G.); (J.Z.); (C.Z.)
- Department of Neurosurgery, Ningbo Hospital of Zhejiang University, Ningbo 315010, China
| | - Shengjun Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China; (X.D.); (S.Z.); (Z.H.); (F.G.); (J.Z.); (C.Z.)
- Department of Neurosurgery, Ningbo Hospital of Zhejiang University, Ningbo 315010, China
| | - Ziliang Hu
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China; (X.D.); (S.Z.); (Z.H.); (F.G.); (J.Z.); (C.Z.)
- Cixi Biomedical Research Institute, Wenzhou Medical University, Cixi 315302, China
| | - Fanyong Gong
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China; (X.D.); (S.Z.); (Z.H.); (F.G.); (J.Z.); (C.Z.)
- Department of Neurosurgery, Ningbo Hospital of Zhejiang University, Ningbo 315010, China
| | - Junjun Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China; (X.D.); (S.Z.); (Z.H.); (F.G.); (J.Z.); (C.Z.)
- Department of Neurosurgery, Ningbo Hospital of Zhejiang University, Ningbo 315010, China
| | - Chenhui Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China; (X.D.); (S.Z.); (Z.H.); (F.G.); (J.Z.); (C.Z.)
- Department of Neurosurgery, Ningbo Hospital of Zhejiang University, Ningbo 315010, China
| | - Wenting Lan
- Department of Radiology, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China;
| | - Xiang Gao
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China; (X.D.); (S.Z.); (Z.H.); (F.G.); (J.Z.); (C.Z.)
- Department of Neurosurgery, Ningbo Hospital of Zhejiang University, Ningbo 315010, China
| | - Yi Huang
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China; (X.D.); (S.Z.); (Z.H.); (F.G.); (J.Z.); (C.Z.)
- Department of Neurosurgery, Ningbo Hospital of Zhejiang University, Ningbo 315010, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo 315010, China
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3
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Weiss E, Vlahos A, Kim B, Wijegunasekara S, Shanmuganathan D, Aitken T, Joo JHE, Imran S, Shepherd R, Craig JM, Green M, Hiden U, Novakovic B, Saffery R. Transcriptomic Remodelling of Fetal Endothelial Cells During Establishment of Inflammatory Memory. Front Immunol 2021; 12:757393. [PMID: 34867995 PMCID: PMC8640490 DOI: 10.3389/fimmu.2021.757393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/03/2021] [Indexed: 12/11/2022] Open
Abstract
Inflammatory memory involves the molecular and cellular ‘reprogramming’ of innate immune cells following exogenous stimuli, leading to non-specific protection against subsequent pathogen exposure. This phenomenon has now also been described in non-hematopoietic cells, such as human fetal and adult endothelial cells. In this study we mapped the cell-specific DNA methylation profile and the transcriptomic remodelling during the establishment of inflammatory memory in two distinct fetal endothelial cell types – a progenitor cell (ECFC) and a differentiated cell (HUVEC) population. We show that both cell types have a core transcriptional response to an initial exposure to a viral-like ligand, Poly(I:C), characterised by interferon responsive genes. There was also an ECFC specific response, marked by the transcription factor ELF1, suggesting a non-canonical viral response pathway in progenitor endothelial cells. Next, we show that both ECFCs and HUVECs establish memory in response to an initial viral exposure, resulting in an altered subsequent response to lipopolysaccharide. While the capacity to train or tolerize the induction of specific sets of genes was similar between the two cell types, the progenitor ECFCs show a higher capacity to establish memory. Among tolerized cellular pathways are those involved in endothelial barrier establishment and leukocyte migration, both important for regulating systemic immune-endothelial cell interactions. These findings suggest that the capacity for inflammatory memory may be a common trait across different endothelial cell types but also indicate that the specific downstream targets may vary by developmental stage.
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Affiliation(s)
- Elisa Weiss
- Perinatal Research Laboratory, Department of Obstetrics & Gynaecology, Medical University of Graz, Graz, Austria
| | - Amanda Vlahos
- Molecular Immunity, Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Bowon Kim
- Molecular Immunity, Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Sachintha Wijegunasekara
- Molecular Immunity, Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Dhanya Shanmuganathan
- Molecular Immunity, Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Thomas Aitken
- Molecular Immunity, Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia.,Department of Biosciences, University of Melbourne, Parkville, VIC, Australia
| | - Ji-Hoon E Joo
- Colorectal Oncogenomics Group, Department of Clinical Pathology, University of Melbourne, Melbourne, VIC, Australia.,University of Melbourne Centre for Cancer Research, University of Melbourne, Melbourne, VIC, Australia
| | - Samira Imran
- Molecular Immunity, Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia.,Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Parkville, VIC, Australia
| | - Rebecca Shepherd
- Molecular Immunity, Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Jeffrey M Craig
- Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Parkville, VIC, Australia.,Molecular Epidemiology, Murdoch Children's Research Institute, Parkville, VIC, Australia.,The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine, Deakin University, Geelong, VIC, Australia
| | - Mark Green
- Department of Biosciences, University of Melbourne, Parkville, VIC, Australia
| | - Ursula Hiden
- Perinatal Research Laboratory, Department of Obstetrics & Gynaecology, Medical University of Graz, Graz, Austria
| | - Boris Novakovic
- Molecular Immunity, Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia.,Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Parkville, VIC, Australia
| | - Richard Saffery
- Molecular Immunity, Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia.,Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Parkville, VIC, Australia
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4
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Krause BJ. Novel insights for the role of nitric oxide in placental vascular function during and beyond pregnancy. J Cell Physiol 2021; 236:7984-7999. [PMID: 34121195 DOI: 10.1002/jcp.30470] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 05/28/2021] [Accepted: 06/01/2021] [Indexed: 01/02/2023]
Abstract
More than 30 years have passed since endothelial nitric oxide synthesis was described using the umbilical artery and vein endothelium. That seminal report set the cornerstone for unveiling the molecular aspects of endothelial function. In parallel, the understanding of placental physiology has gained growing interest, due to its crucial role in intrauterine development, with considerable long-term health consequences. This review discusses the evidence for nitric oxide (NO) as a critical player of placental development and function, with a special focus on endothelial nitric oxide synthase (eNOS) vascular effects. Also, the regulation of eNOS-dependent vascular responses in normal pregnancy and pregnancy-related diseases and their impact on prenatal and postnatal vascular health are discussed. Recent and compelling evidence has reinforced that eNOS regulation results from a complex network of processes, with novel data concerning mechanisms such as mechano-sensing, epigenetic, posttranslational modifications, and the expression of NO- and l-arginine-related pathways. In this regard, most of these mechanisms are expressed in an arterial-venous-specific manner and reflect traits of the fetal systemic circulation. Several studies using umbilical endothelial cells are not aimed to understand placental function but general endothelial function, reinforcing the influence of the placenta on general knowledge in physiology.
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Affiliation(s)
- Bernardo J Krause
- Instituto de Ciencias de la Salud, Universidad de O'Higgins, Rancagua, Chile
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5
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Vega-Tapia F, Peñaloza E, Krause BJ. Specific arterio-venous transcriptomic and ncRNA-RNA interactions in human umbilical endothelial cells: A meta-analysis. iScience 2021; 24:102675. [PMID: 34222842 PMCID: PMC8243012 DOI: 10.1016/j.isci.2021.102675] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/21/2021] [Accepted: 05/27/2021] [Indexed: 01/06/2023] Open
Abstract
Whether arterial-venous differences of primary endothelial cells commonly used for vascular research are preserved in vitro remains under debate. To address this issue, a meta-analysis of Affymetrix transcriptomic data sets from human umbilical artery (HUAECs) and vein (HUVEC) endothelial cells was performed. The meta-analysis showed 2,742 transcripts differentially expressed (false discovery rate <0.05), of which 78% were downregulated in HUVECs. Comparisons with RNA-seq data sets showed high levels of agreement and correlation (p < 0.0001), identifying 84 arterial-venous identity markers. Functional analysis revealed enrichment of key vascular processes in HUAECs/HUVECs, including nitric oxide- (NO) and hypoxia-related genes, as well as differences in miRNA- and ncRNA-mRNA interaction profiles. A proof of concept of these findings in primary cells exposed to hypoxia in vitro and in vivo confirmed the arterial-venous differences in NO-related genes and miRNAs. Altogether, these data defined a cross-platform arterial-venous transcript profile for cultured HUAEC-HUVEC and support a preserved identity involving key vascular pathways post-transcriptionally regulated in vitro. Transcriptional differences among HUAEC and HUVEC are preserved in culture These differences occur even after correcting for experimental conditions The heterogenous regulation affects NO- and hypoxia-related genes Cell-specific ncRNA/mRNA interactions are found
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Affiliation(s)
- Fabian Vega-Tapia
- Instituto de Ciencias de la Salud, Universidad de O'Higgins, Avenida Libertador Bernardo O'Higgins 611, Rancagua, Chile
| | - Estefania Peñaloza
- Instituto de Ciencias de la Salud, Universidad de O'Higgins, Avenida Libertador Bernardo O'Higgins 611, Rancagua, Chile
| | - Bernardo J Krause
- Instituto de Ciencias de la Salud, Universidad de O'Higgins, Avenida Libertador Bernardo O'Higgins 611, Rancagua, Chile
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6
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Silini AR, Di Pietro R, Lang-Olip I, Alviano F, Banerjee A, Basile M, Borutinskaite V, Eissner G, Gellhaus A, Giebel B, Huang YC, Janev A, Kreft ME, Kupper N, Abadía-Molina AC, Olivares EG, Pandolfi A, Papait A, Pozzobon M, Ruiz-Ruiz C, Soritau O, Susman S, Szukiewicz D, Weidinger A, Wolbank S, Huppertz B, Parolini O. Perinatal Derivatives: Where Do We Stand? A Roadmap of the Human Placenta and Consensus for Tissue and Cell Nomenclature. Front Bioeng Biotechnol 2020; 8:610544. [PMID: 33392174 PMCID: PMC7773933 DOI: 10.3389/fbioe.2020.610544] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 11/23/2020] [Indexed: 02/05/2023] Open
Abstract
Progress in the understanding of the biology of perinatal tissues has contributed to the breakthrough revelation of the therapeutic effects of perinatal derivatives (PnD), namely birth-associated tissues, cells, and secreted factors. The significant knowledge acquired in the past two decades, along with the increasing interest in perinatal derivatives, fuels an urgent need for the precise identification of PnD and the establishment of updated consensus criteria policies for their characterization. The aim of this review is not to go into detail on preclinical or clinical trials, but rather we address specific issues that are relevant for the definition/characterization of perinatal cells, starting from an understanding of the development of the human placenta, its structure, and the different cell populations that can be isolated from the different perinatal tissues. We describe where the cells are located within the placenta and their cell morphology and phenotype. We also propose nomenclature for the cell populations and derivatives discussed herein. This review is a joint effort from the COST SPRINT Action (CA17116), which broadly aims at approaching consensus for different aspects of PnD research, such as providing inputs for future standards for the processing and in vitro characterization and clinical application of PnD.
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Affiliation(s)
- Antonietta Rosa Silini
- Centro di Ricerca E. Menni, Fondazione Poliambulanza-Istituto Ospedaliero, Brescia, Italy
| | - Roberta Di Pietro
- Department of Medicine and Ageing Sciences, G. d’Annunzio University of Chieti-Pescara, Chieti, Italy
- StemTeCh Group, G. d’Annunzio Foundation, G. d’Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Ingrid Lang-Olip
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Francesco Alviano
- Department of Experimental, Diagnostic and Specialty Medicine, Unit of Histology, Embryology and Applied Biology, University of Bologna, Bologna, Italy
| | - Asmita Banerjee
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Mariangela Basile
- Department of Medicine and Ageing Sciences, G. d’Annunzio University of Chieti-Pescara, Chieti, Italy
- StemTeCh Group, G. d’Annunzio Foundation, G. d’Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Veronika Borutinskaite
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Günther Eissner
- Systems Biology Ireland, School of Medicine, University College Dublin, Dublin, Ireland
| | - Alexandra Gellhaus
- Department of Gynecology and Obstetrics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Bernd Giebel
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Yong-Can Huang
- Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Department of Spine Surgery, Peking University Shenzhen Hospital, Shenzhen, China
| | - Aleksandar Janev
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Mateja Erdani Kreft
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Nadja Kupper
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Ana Clara Abadía-Molina
- Instituto de Biopatología y Medicina Regenerativa, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
- Departamento de Bioquímica y Biología Molecular III e Inmunología, Universidad de Granada, Granada, Spain
| | - Enrique G. Olivares
- Instituto de Biopatología y Medicina Regenerativa, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
- Departamento de Bioquímica y Biología Molecular III e Inmunología, Universidad de Granada, Granada, Spain
- Unidad de Gestión Clínica Laboratorios, Hospital Universitario Clínico San Cecilio, Granada, Spain
| | - Assunta Pandolfi
- StemTeCh Group, G. d’Annunzio Foundation, G. d’Annunzio University of Chieti-Pescara, Chieti, Italy
- Vascular and Stem Cell Biology, Department of Medical, Oral and Biotechnological Sciences, G. d’Annunzio University of Chieti-Pescara, CAST (Center for Advanced Studies and Technology, ex CeSI-MeT), Chieti, Italy
| | - Andrea Papait
- Centro di Ricerca E. Menni, Fondazione Poliambulanza-Istituto Ospedaliero, Brescia, Italy
- Department of Life Science and Public Health, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Michela Pozzobon
- Stem Cells and Regenerative Medicine Lab, Department of Women’s and Children’s Health, University of Padova, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padua, Italy
| | - Carmen Ruiz-Ruiz
- Instituto de Biopatología y Medicina Regenerativa, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
- Departamento de Bioquímica y Biología Molecular III e Inmunología, Universidad de Granada, Granada, Spain
| | - Olga Soritau
- The Oncology Institute “Prof. Dr. Ion Chiricuta”, Cluj-Napoca, Romania
| | - Sergiu Susman
- Department of Morphological Sciences-Histology, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Pathology, IMOGEN Research Center, Cluj-Napoca, Romania
| | - Dariusz Szukiewicz
- Department of General and Experimental Pathology with Centre for Preclinical Research and Technology (CEPT), Medical University of Warsaw, Warsaw, Poland
| | - Adelheid Weidinger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Susanne Wolbank
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Berthold Huppertz
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Ornella Parolini
- Department of Life Science and Public Health, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, Rome, Italy
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7
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Peñaloza E, Soto-Carrasco G, Krause BJ. MiR-21-5p directly contributes to regulating eNOS expression in human artery endothelial cells under normoxia and hypoxia. Biochem Pharmacol 2020; 182:114288. [PMID: 33075314 DOI: 10.1016/j.bcp.2020.114288] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 12/22/2022]
Abstract
Clinical conditions associated with hypoxia and oxidative stress, such as fetal growth restriction (FGR), results in endothelial dysfunction. Previous reports show that changes in eNOS expression under these conditions are tightly controlled by DNA methylation and histone posttranslational modifications. However, the contribution of an orchestrating epigenetic mechanism, such as miRNAs, on the NO-related genes expression has not been addressed. We aimed to determine the levels of miRNAs highly expressed in normal endothelial cells (EC), miR-21 and miR-126, in FGR human umbilical artery EC (HUAEC), and their effects on hypoxia-dependent regulation of both, NO-related and oxidative stress-related genes. Results were validated by transcriptome analysis of HUAEC cultured under chronic low oxygen conditions. Cultured FGR-HUAEC showed decreased hsa-miR-21, DDAH1, SOD1, and NRF2, but increased miR-126, NOX4, and eNOS levels, compared with controls. MiR-21-5p levels in FGR were associated with increased hg-miR-21 gene promoter methylation, with no changes in hg-miR-126 gene promoter methylation. HUAEC exposed to hypoxia showed a transient increase in eNOS and DDAH11, paralleled by decrease miR-21-5p levels, but no changes in miR-126-3p and the other genes under study. Transcriptome profiling showed an inverse relationship among miR-21 and several transcripts targeted by miR-21 in HUAEC exposed to hypoxia, meanwhile miR-21-5p-mimic decreased eNOS and DDAH1 transcripts stability, blocking their induction by hypoxia. Consequently, FGR programs a hypoxia-related miRNA that contributes to the regulation of the NO pathway, involving a direct effect of miR-21-5p on eNOS transcript stability, not previously reported. Moreover, hypoxia downregulates miR-21-5p, contributing to increasing the expression of NO-related genes in arterial endothelial cells.
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Affiliation(s)
- Estefania Peñaloza
- Instituto de Ciencias de la Salud, Universidad de O'Higgins, Rancagua, Chile
| | | | - Bernardo J Krause
- Instituto de Ciencias de la Salud, Universidad de O'Higgins, Rancagua, Chile.
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8
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The tissue-specific aspect of genome-wide DNA methylation in newborn and placental tissues: implications for epigenetic epidemiologic studies. J Dev Orig Health Dis 2020; 12:113-123. [PMID: 32327008 DOI: 10.1017/s2040174420000136] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Epigenetic programming is essential for lineage differentiation, embryogenesis and placentation in early pregnancy. In epigenetic association studies, DNA methylation is often examined in DNA derived from white blood cells, although its validity to other tissues of interest remains questionable. Therefore, we investigated the tissue specificity of epigenome-wide DNA methylation in newborn and placental tissues. Umbilical cord white blood cells (UC-WBC, n = 25), umbilical cord blood mononuclear cells (UC-MNC, n = 10), human umbilical vein endothelial cells (HUVEC, n = 25) and placental tissue (n = 25) were obtained from 36 uncomplicated pregnancies. Genome-wide DNA methylation was measured by the Illumina HumanMethylation450K BeadChip. Using UC-WBC as a reference tissue, we identified 3595 HUVEC tissue-specific differentially methylated regions (tDMRs) and 11,938 placental tDMRs. Functional enrichment analysis showed that HUVEC and placental tDMRs were involved in embryogenesis, vascular development and regulation of gene expression. No tDMRs were identified in UC-MNC. In conclusion, the extensive amount of genome-wide HUVEC and placental tDMRs underlines the relevance of tissue-specific approaches in future epigenetic association studies, or the use of validated representative tissues for a certain disease of interest, if available. To this purpose, we herewith provide a relevant dataset of paired, tissue-specific, genome-wide methylation measurements in newborn tissues.
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9
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Krause BJ, Peñaloza E, Candia A, Cañas D, Hernández C, Arenas GA, Peralta‐Scholz MJ, Valenzuela R, García‐Herrera C, Herrera EA. Adult vascular dysfunction in foetal growth-restricted guinea-pigs is associated with a neonate-adult switching in Nos3 DNA methylation. Acta Physiol (Oxf) 2019; 227:e13328. [PMID: 31177629 DOI: 10.1111/apha.13328] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/31/2019] [Accepted: 06/04/2019] [Indexed: 12/24/2022]
Abstract
AIM Foetal growth restriction (FGR) is associated with endothelial dysfunction and cardiovascular diseases in adult subjects. Early vascular remodelling and epigenetic changes occurring on key endothelial genes might precede this altered vascular function. Further, it has been proposed that oxidative stress during development may determine some of these epigenetic modifications. To address this issue, we studied the in vivo and ex vivo vascular function and Nos3 promoter DNA methylation in arteries from eight-month-old guinea-pig born from control, FGR-treated and FGR-NAC-treated pregnancies. METHODS Femoral and carotid arteries in vivo vascular function were determined by Doppler, whilst ex vivo vascular function and biomechanical properties were assessed by wire myography. Levels of eNOS mRNA and site-specific DNA methylation in Nos3 promoter in aorta endothelial cells (AEC) were determined by qPCR and pyrosequencing respectively. RESULTS FGR adult showed an increased femoral vascular resistance (P < .05), stiffness (P < .05) and arterial remodelling (P < .01), along with an impaired NO-mediated relaxation (P < .001). These effects were prevented by maternal treatment with NAC. Endothelial-NOS mRNA levels were decreased in FGR adult compared with control and FGR-NAC (P < .05), associated with increased DNA methylation levels (P < .01). Comparison of Nos3 DNA methylation in AEC showed a differential methylation pattern between foetal and adult guinea-pigs (P < .05). CONCLUSION Altogether, these data suggest that adult vascular dysfunction in the FGR does not result from early changes in Nos3 promoter DNA methylation, but from an altered vessel structure established during foetal development.
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Affiliation(s)
- Bernardo J. Krause
- Departament of Neonatology, Division of Paediatrics, Faculty of Medicine Pontificia Universidad Católica de Chile Santiago Chile
| | - Estefanía Peñaloza
- Departament of Neonatology, Division of Paediatrics, Faculty of Medicine Pontificia Universidad Católica de Chile Santiago Chile
| | - Alejandro Candia
- Programa de Fisiopatología, Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile Santiago Chile
| | - Daniel Cañas
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería Universidad de Santiago de Chile Santiago Chile
| | - Cherie Hernández
- Departament of Neonatology, Division of Paediatrics, Faculty of Medicine Pontificia Universidad Católica de Chile Santiago Chile
| | - German A. Arenas
- Departament of Neonatology, Division of Paediatrics, Faculty of Medicine Pontificia Universidad Católica de Chile Santiago Chile
| | - María José Peralta‐Scholz
- Departament of Neonatology, Division of Paediatrics, Faculty of Medicine Pontificia Universidad Católica de Chile Santiago Chile
| | - Rodrigo Valenzuela
- Departamento de Ciencias Químicas y Biológicas, Facultad de Salud Universidad Bernardo O'Higgins Santiago Chile
| | - Claudio García‐Herrera
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería Universidad de Santiago de Chile Santiago Chile
| | - Emilio A. Herrera
- Programa de Fisiopatología, Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile Santiago Chile
- International Center for Andean Studies (INCAS) Universidad de Chile Putre Chile
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10
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Cvitic S, Novakovic B, Gordon L, Ulz CM, Mühlberger M, Diaz-Perez FI, Joo JE, Svendova V, Schimek MG, Trajanoski S, Saffery R, Desoye G, Hiden U. Human fetoplacental arterial and venous endothelial cells are differentially programmed by gestational diabetes mellitus, resulting in cell-specific barrier function changes. Diabetologia 2018; 61:2398-2411. [PMID: 30091044 PMCID: PMC6182654 DOI: 10.1007/s00125-018-4699-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 06/26/2018] [Indexed: 12/15/2022]
Abstract
AIMS/HYPOTHESIS An adverse intrauterine environment can result in permanent changes in the physiology of the offspring and predispose to diseases in adulthood. One such exposure, gestational diabetes mellitus (GDM), has been linked to development of metabolic disorders and cardiovascular disease in offspring. Epigenetic variation, including DNA methylation, is recognised as a leading mechanism underpinning fetal programming and we hypothesised that this plays a key role in fetoplacental endothelial dysfunction following exposure to GDM. Thus, we conducted a pilot epigenetic study to analyse concordant DNA methylation and gene expression changes in GDM-exposed fetoplacental endothelial cells. METHODS Genome-wide methylation analysis of primary fetoplacental arterial endothelial cells (AEC) and venous endothelial cells (VEC) from healthy pregnancies and GDM-complicated pregnancies in parallel with transcriptome analysis identified methylation and expression changes. Most-affected pathways and functions were identified by Ingenuity Pathway Analysis and validated using functional assays. RESULTS Transcriptome and methylation analyses identified variation in gene expression linked to GDM-associated DNA methylation in 408 genes in AEC and 159 genes in VEC, implying a direct functional link. Pathway analysis found that genes altered by exposure to GDM clustered to functions associated with 'cell morphology' and 'cellular movement' in healthy AEC and VEC. Further functional analysis demonstrated that GDM-exposed cells had altered actin organisation and barrier function. CONCLUSIONS/INTERPRETATION Our data indicate that exposure to GDM programs atypical morphology and barrier function in fetoplacental endothelial cells by DNA methylation and gene expression change. The effects differ between AEC and VEC, indicating a stringent cell-specific sensitivity to adverse exposures associated with developmental programming in utero. DATA AVAILABILITY DNA methylation and gene expression datasets generated and analysed during the current study are available at the National Center for Biotechnology Information (NCBI) Gene Expression Omnibus (GEO) database ( http://www.ncbi.nlm.nih.gov/geo ) under accession numbers GSE106099 and GSE103552, respectively.
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Affiliation(s)
- Silvija Cvitic
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria
| | - Boris Novakovic
- Cancer and Disease Epigenetics, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, Australia
| | - Lavinia Gordon
- Cancer and Disease Epigenetics, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, Australia
| | - Christine M Ulz
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria
| | - Magdalena Mühlberger
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria
| | - Francisca I Diaz-Perez
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria
| | - Jihoon E Joo
- Cancer and Disease Epigenetics, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, Australia
| | - Vendula Svendova
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
| | - Michael G Schimek
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
| | - Slave Trajanoski
- Center for Medical Research, Medical University of Graz, Graz, Austria
| | - Richard Saffery
- Cancer and Disease Epigenetics, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, Australia
| | - Gernot Desoye
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria
| | - Ursula Hiden
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria.
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11
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Paauw ND, Lely AT, Joles JA, Franx A, Nikkels PG, Mokry M, van Rijn BB. H3K27 acetylation and gene expression analysis reveals differences in placental chromatin activity in fetal growth restriction. Clin Epigenetics 2018; 10:85. [PMID: 29983832 PMCID: PMC6020235 DOI: 10.1186/s13148-018-0508-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 05/29/2018] [Indexed: 01/30/2023] Open
Abstract
Background Posttranslational modification of histone tails such as histone 3 lysine 27 acetylation (H3K27ac) is tightly coupled to epigenetic regulation of gene expression. To explore whether this is involved in placenta pathology, we probed genome-wide H3K27ac occupancy by chromatin immunoprecipitation sequencing (ChIP-seq) in healthy placentas and placentas from pathological pregnancies with fetal growth restriction (FGR). Furthermore, we related specific acetylation profiles of FGR placentas to gene expression changes. Results Analysis of H3K27ac occupancy in FGR compared to healthy placentas showed 970 differentially acetylated regions distributed throughout the genome. Principal component analysis and hierarchical clustering revealed complete segregation of the FGR and control group. Next, we identified 569 upregulated genes and 521 downregulated genes in FGR placentas by RNA sequencing. Differential gene transcription largely corresponded to expected direction based on H3K27ac status. Pathway analysis on upregulated transcripts originating from hyperacetylated sites revealed genes related to the HIF-1-alpha transcription factor network and several other genes with known involvement in placental pathology (LEP, FLT1, HK2, ENG, FOS). Downregulated transcripts in the vicinity of hypoacetylated sites were related to the immune system and growth hormone receptor signaling. Additionally, we found enrichment of 141 transcription factor binding motifs within differentially acetylated regions. Of the corresponding transcription factors, four were upregulated, SP1, ARNT2, HEY2, and VDR, and two downregulated, FOSL and NR4A1. Conclusion We demonstrate a key role for genome-wide alterations in H3K27ac in FGR placentas corresponding with changes in transcription profiles of regions relevant to placental function. Future studies on the role of H3K27ac in FGR and placental-fetal development may help to identify novel targets for therapy of this currently incurable disease. Electronic supplementary material The online version of this article (10.1186/s13148-018-0508-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- N D Paauw
- 1Department of Obstetrics, Wilhelmina Children's Hospital Birth Center, University Medical Center Utrecht, Utrecht, the Netherlands.,6Division Woman and Baby, University Medical Center Utrecht, Postbus 85090, 3508 AB Utrecht, the Netherlands
| | - A T Lely
- 1Department of Obstetrics, Wilhelmina Children's Hospital Birth Center, University Medical Center Utrecht, Utrecht, the Netherlands
| | - J A Joles
- 2Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, the Netherlands
| | - A Franx
- 1Department of Obstetrics, Wilhelmina Children's Hospital Birth Center, University Medical Center Utrecht, Utrecht, the Netherlands
| | - P G Nikkels
- 3Department of Pathology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - M Mokry
- 4Division of Pediatrics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - B B van Rijn
- 1Department of Obstetrics, Wilhelmina Children's Hospital Birth Center, University Medical Center Utrecht, Utrecht, the Netherlands.,5Academic Unit of Human Development and Health, University of Southampton, Southampton, UK.,6Division Woman and Baby, University Medical Center Utrecht, Postbus 85090, 3508 AB Utrecht, the Netherlands
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12
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Mise A, Yoshino Y, Yamazaki K, Ozaki Y, Sao T, Yoshida T, Mori T, Mori Y, Ochi S, Iga JI, Ueno SI. TOMM40 and APOE Gene Expression and Cognitive Decline in Japanese Alzheimer's Disease Subjects. J Alzheimers Dis 2018; 60:1107-1117. [PMID: 28984592 DOI: 10.3233/jad-170361] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND TOMM40 is located on chromosome 19, is in linkage disequilibrium with apolipoprotein E (APOE), andis reported in several genome-wide association studies to be associated with Alzheimer's disease (AD). OBJECTIVE Assess APOE and TOM40 and mitochondrial genes as blood biomarkers for AD. METHODS We examined TOMM40, PTEN-induced putative kinase 1 (PINK1), Parkin RBR E3 ubiquitin protein ligase (PARK2), and APOE mRNA expression in relation to the methylation rates of CpG sites in the upstream region of TOMM40exon 1 in peripheral leukocytes and TOMM40523 polyT genotypes in 60 AD and age- and sex-matched control subjects. RESULTS TOMM40 mRNA expression was significantly lower in AD subjects (0.87±0.18 versus 1.0±0.23, p = 0.005), and PINK1 mRNA expression was higher in AD subjects (1.5±0.61 versus 1.0±0.52, p < 0.001). TOMM40 mRNA expression was significantly correlated with the Mini-Mental State Examination total score (r = 0.290, p = 0.027). There was no expressional change in peripheral APOE mRNA in either AD or control subjects (p = 0.32). Methylation rates in the upstream region of TOMM40exon 1 were not different between AD and control subjects (average rate: 1.37±0.99 versus 1.39±1.20, p = 0.885), and TOMM40523 polyT genotypes were also not different between AD and control subjects (p = 0.67). CONCLUSION TOMM40 mRNA expression was lower in AD subjects and was correlated with cognitive decline. Significant changes in both TOMM40 and PINK1 mRNA may be related to mitochondrial dysfunction.
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Affiliation(s)
- Ayano Mise
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Yuta Yoshino
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Kiyohiro Yamazaki
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Yuki Ozaki
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Tomoko Sao
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Taku Yoshida
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Takaaki Mori
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Yoko Mori
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Shinichiro Ochi
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Jun-Ichi Iga
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Shu-Ichi Ueno
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
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13
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Sao T, Yoshino Y, Yamazaki K, Ozaki Y, Mori Y, Ochi S, Yoshida T, Mori T, Iga JI, Ueno SI. MEF2C mRNA expression and cognitive function in Japanese patients with Alzheimer's disease. Psychiatry Clin Neurosci 2018; 72:160-167. [PMID: 29112298 DOI: 10.1111/pcn.12618] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/12/2017] [Accepted: 10/30/2017] [Indexed: 12/15/2022]
Abstract
AIM Despite continuing research into Alzheimer's disease (AD), its pathological mechanisms and modulating factors remain unknown. Several genes influence AD pathogenesis by affecting inflammatory pathways. Myocyte-enhancer factor 2C (MEF2C) is one such candidate gene for AD. METHODS We examined MEF2C mRNA expression levels and methylation rates of CpG on its promoter region in peripheral leukocytes from Japanese AD patients compared with age- and sex-matched control subjects. RESULTS In peripheral leukocytes, MEF2C mRNA expression levels in AD subjects were significantly lower than those in control subjects (0.86 ± 0.25 vs 0.99 ± 0.27, respectively, P = 0.007) and were correlated with the Alzheimer's Disease Assessment Scale (r = -0.345, P = 0.049) and the Mini Mental State Examination (r = 0.324, P = 0.02). No significant differences were found in methylation rates between AD and control subjects. CONCLUSION MEF2C mRNA expression in leukocytes may be a biological marker for cognitive decline in AD.
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Affiliation(s)
- Tomoko Sao
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yuta Yoshino
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
| | - Kiyohiro Yamazaki
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yuki Ozaki
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yoko Mori
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shinichiro Ochi
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
| | - Taku Yoshida
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
| | - Takaaki Mori
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
| | - Jun-Ichi Iga
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shu-Ichi Ueno
- Department of Neuropsychiatry, Molecules, and Function, Ehime University Graduate School of Medicine, Toon, Japan
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14
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Herzog EM, Eggink AJ, Willemsen SP, Slieker RC, Wijnands KP, Felix JF, Chen J, Stubbs A, van der Spek PJ, van Meurs JB, Steegers-Theunissen RP. Early- and late-onset preeclampsia and the tissue-specific epigenome of the placenta and newborn. Placenta 2017; 58:122-132. [DOI: 10.1016/j.placenta.2017.08.070] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/18/2017] [Accepted: 08/28/2017] [Indexed: 01/22/2023]
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15
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van den Berg CB, Chaves I, Herzog EM, Willemsen SP, van der Horst GTJ, Steegers-Theunissen RPM. Early- and late-onset preeclampsia and the DNA methylation of circadian clock and clock-controlled genes in placental and newborn tissues. Chronobiol Int 2017; 34:921-932. [DOI: 10.1080/07420528.2017.1326125] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- C. B. van den Berg
- Department of Obstetrics and Gynecology, Division of Obstetrics & Prenatal Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - I. Chaves
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - E. M. Herzog
- Department of Obstetrics and Gynecology, Division of Obstetrics & Prenatal Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - S. P. Willemsen
- Department of Obstetrics and Gynecology, Division of Obstetrics & Prenatal Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Biostatistics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - G. T. J. van der Horst
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - R. P. M. Steegers-Theunissen
- Department of Obstetrics and Gynecology, Division of Obstetrics & Prenatal Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Pediatrics, Division of Neonatology, Erasmus University Medical Center, Rotterdam, The Netherlands
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16
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Yoshino Y, Yamazaki K, Ozaki Y, Sao T, Yoshida T, Mori T, Mori Y, Ochi S, Iga JI, Ueno SI. INPP5D mRNA Expression and Cognitive Decline in Japanese Alzheimer’s Disease Subjects. J Alzheimers Dis 2017; 58:687-694. [DOI: 10.3233/jad-161211] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Li XG, Ma N, Wang B, Li XQ, Mei SH, Zhao K, Wang YJ, Li W, Zhao ZG, Sun SS, Miao ZR. The impact of P2Y12 promoter DNA methylation on the recurrence of ischemic events in Chinese patients with ischemic cerebrovascular disease. Sci Rep 2016; 6:34570. [PMID: 27686864 PMCID: PMC5043343 DOI: 10.1038/srep34570] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 09/15/2016] [Indexed: 01/21/2023] Open
Abstract
The primary mechanism of clopidogrel resistance is still unclear. We aimed to investigate whether the methylation status of the P2Y12 promoter has effects on platelet function and clinical ischemic events. Patients with ischemic cerebrovascular disease were enrolled into our study. Venous blood samples were drawn for thrombelastograpy (TEG) and active metabolite assay. Patients were divided into a case- or control-group based on the occurrence of ischemic events during a one year follow-up. Two TEG parameters between the case and control groups were statistically significant [ADP inhibition rate (ADP%): P = 0.018; ADP-induced platelet-fibrin clot strength (MAADP): P = 0.030]. The concentrations of clopidogrel active metabolite had no significant difference (P = 0.281). Sixteen CpG dinucleotides on P2Y12 promoter were tested. Three CpG sites (CpG11 and CpG12 + 13) showed lower methylation status, which correlated with a strong association with increased risk of clinical events. Changes of MAADP and ADP% were also associated with methylation levels of CpG 11 and CpG 12 + 13. Hypomethylation of the P2Y12 promoter is associated with a higher platelet reactivity and increased risk of ischemic events in our patients. Methylation analysis of peripheral blood samples might be a novel molecular marker to help early identification of patients at high risk for clinical ischemic events.
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Affiliation(s)
- Xin-Gang Li
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Precision Medicine Research Center for Neurological Disorders, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ning Ma
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Bo Wang
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xiao-Qing Li
- Department of Neurology, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Sheng-Hui Mei
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Kun Zhao
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yong-Jun Wang
- Precision Medicine Research Center for Neurological Disorders, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wei Li
- Precision Medicine Research Center for Neurological Disorders, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhi-Gang Zhao
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Precision Medicine Research Center for Neurological Disorders, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Shu-Sen Sun
- College of Pharmacy, Western New England University, Springfield, Massachusetts, United States of America
| | - Zhong-Rong Miao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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18
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Thomas JM, Surendran S, Abraham M, Rajavelu A, Kartha CC. Genetic and epigenetic mechanisms in the development of arteriovenous malformations in the brain. Clin Epigenetics 2016; 8:78. [PMID: 27453762 PMCID: PMC4957361 DOI: 10.1186/s13148-016-0248-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 07/12/2016] [Indexed: 12/05/2022] Open
Abstract
Vascular malformations are developmental congenital abnormalities of the vascular system which may involve any segment of the vascular tree such as capillaries, veins, arteries, or lymphatics. Arteriovenous malformations (AVMs) are congenital vascular lesions, initially described as “erectile tumors,” characterized by atypical aggregation of dilated arteries and veins. They may occur in any part of the body, including the brain, heart, liver, and skin. Severe clinical manifestations occur only in the brain. There is absence of normal vascular structure at the subarteriolar level and dearth of capillary bed resulting in aberrant arteriovenous shunting. The causative factor and pathogenic mechanisms of AVMs are unknown. Importantly, no marker proteins have been identified for AVM. AVM is a high flow vascular malformation and is considered to develop because of variability in the hemodynamic forces of blood flow. Altered local hemodynamics in the blood vessels can affect cellular metabolism and may trigger epigenetic factors of the endothelial cell. The genes that are recognized to be associated with AVM might be modulated by various epigenetic factors. We propose that AVMs result from a series of changes in the DNA methylation and histone modifications in the genes connected to vascular development. Aberrant epigenetic modifications in the genome of endothelial cells may drive the artery or vein to an aberrant phenotype. This review focuses on the molecular pathways of arterial and venous development and discusses the role of hemodynamic forces in the development of AVM and possible link between hemodynamic forces and epigenetic mechanisms in the pathogenesis of AVM.
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Affiliation(s)
- Jaya Mary Thomas
- Cardiovascular Disease Biology Program, Rajiv Gandhi Centre for Biotechnology, Poojapura, Thycaud, Thiruvananthapuram, Kerala India
| | - Sumi Surendran
- Cardiovascular Disease Biology Program, Rajiv Gandhi Centre for Biotechnology, Poojapura, Thycaud, Thiruvananthapuram, Kerala India
| | - Mathew Abraham
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, Kerala India
| | - Arumugam Rajavelu
- Cardiovascular Disease Biology Program, Rajiv Gandhi Centre for Biotechnology, Poojapura, Thycaud, Thiruvananthapuram, Kerala India ; Tropical Disease Biology Program, Rajiv Gandhi Centre for Biotechnology, Poojapura, Thycaud, Thiruvananthapuram, Kerala India
| | - Chandrasekharan C Kartha
- Cardiovascular Disease Biology Program, Rajiv Gandhi Centre for Biotechnology, Poojapura, Thycaud, Thiruvananthapuram, Kerala India
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Lendvai Á, Deutsch MJ, Plösch T, Ensenauer R. The peroxisome proliferator-activated receptors under epigenetic control in placental metabolism and fetal development. Am J Physiol Endocrinol Metab 2016; 310:E797-810. [PMID: 26860983 DOI: 10.1152/ajpendo.00372.2015] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 02/02/2016] [Indexed: 01/09/2023]
Abstract
The placental metabolism can adapt to the environment throughout pregnancy to both the demands of the fetus and the signals from the mother. Such adaption processes include epigenetic mechanisms, which alter gene expression and may influence the offspring's health. These mechanisms are linked to the diversity of prenatal environmental exposures, including maternal under- or overnutrition or gestational diabetes. The peroxisome proliferator-activated receptors (PPARs) are nuclear receptors that contribute to the developmental plasticity of the placenta by regulating lipid and glucose metabolism pathways, including lipogenesis, steroidogenesis, glucose transporters, and placental signaling pathways, thus representing a link between energy metabolism and reproduction. Among the PPAR isoforms, PPARγ appears to be the main modulator of mammalian placentation. Certain fatty acids and lipid-derived moieties are the natural activating PPAR ligands. By controlling the amounts of maternal nutrients that go across to the fetus, the PPARs play an important regulatory role in placenta metabolism, thereby adapting to the maternal nutritional status. As demonstrated in animal studies, maternal nutrition during gestation can exert long-term influences on the PPAR methylation pattern in offspring organs. This review underlines the current state of knowledge on the relationship between environmental factors and the epigenetic regulation of the PPARs in placenta metabolism and offspring development.
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Affiliation(s)
- Ágnes Lendvai
- Center for Liver, Digestive, and Metabolic Diseases, Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Manuel J Deutsch
- Research Center, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Torsten Plösch
- Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
| | - Regina Ensenauer
- Research Center, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität München, Munich, Germany; Experimental Pediatrics, Department of General Pediatrics, Pediatric Cardiology, and Neonatology, Heinrich-Heine-University Düsseldorf, Dusseldorf, Germany
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20
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Caniuguir A, Krause BJ, Hernandez C, Uauy R, Casanello P. Markers of early endothelial dysfunction in intrauterine growth restriction-derived human umbilical vein endothelial cells revealed by 2D-DIGE and mass spectrometry analyses. Placenta 2016; 41:14-26. [PMID: 27208404 DOI: 10.1016/j.placenta.2016.02.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 02/20/2016] [Accepted: 02/24/2016] [Indexed: 10/22/2022]
Abstract
Intrauterine growth restriction (IUGR) associates with fetal and placental vascular dysfunction, and increased cardiovascular risk later on life. We hypothesize that endothelial cells derived from IUGR umbilical veins present significant changes in the proteome which could be involved in the endothelial dysfunction associated to this conditions. To address this the proteome profile of human umbilical endothelial cells (HUVEC) isolated from control and IUGR pregnancies was compared by 2D-Differential In Gel Electrophoresis (DIGE) and further protein identification by MALDI-TOF MS. Using 2D-DIGE 124 spots were identified as differentially expressed between control and IUGR HUVEC, considering a cut-off of 2 fold change, which represented ∼10% of the total spots detected. Further identification by MALDI-TOF MS and in silico clustering of the proteins showed that those differentially expressed proteins between control and IUGR HUVEC were mainly related with cytoskeleton organization, proteasome degradation, oxidative stress response, mRNA processing, chaperones and vascular function. Finally Principal Component analysis of the identified proteins showed that differentially expressed proteins allow distinguishing between control and IUGR HUVEC based on their proteomic profile. This study demonstrates for the first time that IUGR-derived HUVEC maintained in primary culture conditions present an altered proteome profile, which could reflect an abnormal programming of endothelial function in this fetal condition.
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Affiliation(s)
- Andres Caniuguir
- Division of Obstetrics & Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Division of Pediatrics, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Bernardo J Krause
- Division of Pediatrics, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Cherie Hernandez
- Division of Obstetrics & Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Division of Pediatrics, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ricardo Uauy
- Division of Pediatrics, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Paola Casanello
- Division of Obstetrics & Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Division of Pediatrics, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
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21
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Wang B, Zhao J, Zhang P. Gene signatures in osteoarthritic acetabular labrum using microarray analysis. Int J Rheum Dis 2016; 20:1927-1934. [PMID: 26833791 DOI: 10.1111/1756-185x.12810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Osteoarthritis (OA) is the most common chronic joint disease. This study aimed to uncover underlying mechanisms of OA pathogenesis and explore the potential biomarkers of osteoarthritic acetabular labrum. METHODS The microarray data GSE60762 was utilized, containing five OA acetabular labrum samples and three healthy control samples. Data were preprocessed by oligo package and the differentially expressed genes (DEGs) were identified using limma package with predefined criteria, followed by functional enrichment analysis by the GoFunction in R Bioconductor, and protein-protein interaction (PPI) network analysis. RESULTS As a result, 141 DEGs (44 were up-regulated and 97 were down-regulated) were identified between OA and healthy acetabular labrum cells. Up-regulated genes including CDH2 and WNT5A were significantly enriched in intracellular signal transduction function, while down-regulated genes such as KDR, FLT1 and CDH5 were remarkably correlated with cardiovascular system development. FLT1, KDR, CDH2 and CDH5 were the striking nodes in the PPI network. CONCLUSION CDH2, WNT5A, KDR, FLT1 and CDH5 might serve as the biomarkers of OA prognosis. Intracellular signal transduction and cardiovascular system development might play significant roles in the destruction of labrum during OA progression. However, more experimental validations are warranted to confirm our findings.
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Affiliation(s)
- Beiyue Wang
- Department of Orthopedics, Jinling Hospital, Nanjing, China
| | - Jianning Zhao
- Department of Orthopedics, Jinling Hospital, Nanjing, China
| | - Peng Zhang
- Department of Orthopedics, Jiangsu Province Geriatric Institute, Nanjing, Jiangsu, China
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22
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Januar V, Desoye G, Novakovic B, Cvitic S, Saffery R. Epigenetic regulation of human placental function and pregnancy outcome: considerations for causal inference. Am J Obstet Gynecol 2015; 213:S182-96. [PMID: 26428498 DOI: 10.1016/j.ajog.2015.07.011] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 07/03/2015] [Accepted: 07/13/2015] [Indexed: 12/14/2022]
Abstract
Epigenetic mechanisms, often defined as regulating gene activity independently of underlying DNA sequence, are crucial for healthy development. The sum total of epigenetic marks within a cell or tissue (the epigenome) is sensitive to environmental influence, and disruption of the epigenome in utero has been associated with adverse pregnancy outcomes. Not surprisingly, given its multifaceted functions and important role in regulating pregnancy outcome, the placenta shows unique epigenetic features. Interestingly however, many of these are only otherwise seen in human malignancy (the pseudomalignant placental epigenome). Epigenetic variation in the placenta is now emerging as a candidate mediator of environmental influence on placental functioning and a key regulator of pregnancy outcome. However, replication of findings is generally lacking, most likely due to small sample sizes and a lack of standardization of analytical approaches. Defining DNA methylation "signatures" in the placenta associated with maternal and fetal outcomes offers tremendous potential to improve pregnancy outcomes, but care must be taken in interpretation of findings. Future placental epigenetic research would do well to address the issues present in epigenetic epidemiology more generally, including careful consideration of sample size, potentially confounding factors, issues of tissue heterogeneity, reverse causation, and the role of genetics in modulating epigenetic profile. The importance of animal or in vitro models in establishing a functional role of epigenetic variation identified in human beings, which is key to establishing causation, should not be underestimated.
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Affiliation(s)
- Vania Januar
- Cancer and Disease Epigenetics, Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville, Australia
| | - Gernot Desoye
- Department of Obstetrics and Gynecology, Medical University of Graz, Graz, Austria
| | - Boris Novakovic
- Cancer and Disease Epigenetics, Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville, Australia
| | - Silvija Cvitic
- Department of Obstetrics and Gynecology, Medical University of Graz, Graz, Austria
| | - Richard Saffery
- Cancer and Disease Epigenetics, Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville, Australia; Department of Pediatrics, University of Melbourne, Parkville, Australia.
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23
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Su EJ. Role of the fetoplacental endothelium in fetal growth restriction with abnormal umbilical artery Doppler velocimetry. Am J Obstet Gynecol 2015; 213:S123-30. [PMID: 26428491 DOI: 10.1016/j.ajog.2015.06.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 06/12/2015] [Accepted: 06/16/2015] [Indexed: 01/30/2023]
Abstract
Growth-restricted fetuses with absent or reversed end-diastolic velocities in the umbilical artery are at substantially increased risk for adverse perinatal and long-term outcome, even in comparison to growth-restricted fetuses with preserved end-diastolic velocities. Translational studies show that this Doppler velocimetry correlates with fetoplacental blood flow, with absent or reversed end-diastolic velocities signifying abnormally elevated resistance within the placental vasculature. The fetoplacental vasculature is unique in that it is not subject to autonomic regulation, unlike other vascular beds. Instead, humoral mediators, many of which are synthesized by local endothelial cells, regulate placental vascular resistance. Existing data demonstrate that in growth-restricted pregnancies complicated by absent or reversed umbilical artery end-diastolic velocities, an imbalance in production of these vasoactive substances occurs, favoring vasoconstriction. Morphologically, placentas from these pregnancies also demonstrate impaired angiogenesis, whereby vessels within the terminal villi are sparsely branched, abnormally thin, and elongated. This structural deviation from normal placental angiogenesis restricts blood flow and further contributes to elevated fetoplacental vascular resistance. Although considerable work has been done in the field of fetoplacental vascular development and function, much remains unknown about the mechanisms underlying impaired development and function of the human fetoplacental vasculature, especially in the context of severe fetal growth restriction with absent or reversed umbilical artery end-diastolic velocities. Fetoplacental endothelial cells are key regulators of angiogenesis and vasomotor tone. A thorough understanding of their role in placental vascular biology carries the significant potential of discovering clinically relevant and innovative approaches to prevention and treatment of fetal growth restriction with compromised umbilical artery end-diastolic velocities.
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Sen A, Heredia N, Senut MC, Land S, Hollocher K, Lu X, Dereski MO, Ruden DM. Multigenerational epigenetic inheritance in humans: DNA methylation changes associated with maternal exposure to lead can be transmitted to the grandchildren. Sci Rep 2015; 5:14466. [PMID: 26417717 PMCID: PMC4586440 DOI: 10.1038/srep14466] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 07/30/2015] [Indexed: 12/26/2022] Open
Abstract
We report that the DNA methylation profile of a child’s neonatal whole blood can be significantly influenced by his or her mother’s neonatal blood lead levels (BLL). We recruited 35 mother-infant pairs in Detroit and measured the whole blood lead (Pb) levels and DNA methylation levels at over 450,000 loci from current blood and neonatal blood from both the mother and the child. We found that mothers with high neonatal BLL correlate with altered DNA methylation at 564 loci in their children’s neonatal blood. Our results suggest that Pb exposure during pregnancy affects the DNA methylation status of the fetal germ cells, which leads to altered DNA methylation in grandchildren’s neonatal dried blood spots. This is the first demonstration that an environmental exposure in pregnant mothers can have an epigenetic effect on the DNA methylation pattern in the grandchildren.
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Affiliation(s)
- Arko Sen
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201.,Department of Pharmacology, Wayne State University, Detroit, MI 48201
| | - Nicole Heredia
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201
| | - Marie-Claude Senut
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201
| | - Susan Land
- C. S. Mott Centre for Human Growth and Development, Wayne State University, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI 48201
| | | | - Xiangyi Lu
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201
| | - Mary O Dereski
- Department of Biomedical Sciences, Oakland University William Beaumont School of Medicine, Rochester, MI 48309
| | - Douglas M Ruden
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201.,C. S. Mott Centre for Human Growth and Development, Wayne State University, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI 48201
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Kremshofer J, Siwetz M, Berghold VM, Lang I, Huppertz B, Gauster M. A role for GPR55 in human placental venous endothelial cells. Histochem Cell Biol 2015; 144:49-58. [PMID: 25869640 DOI: 10.1007/s00418-015-1321-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2015] [Indexed: 01/14/2023]
Abstract
Endocannabinoids and their G protein-coupled receptors have been suggested to play a key role in human pregnancy, by regulating important aspects such as implantation, decidualization, placentation and labor. G protein-coupled receptor 55 (GPR55) was previously postulated to be another cannabinoid receptor, since specific cannabinoids were shown to act independently of the classical cannabinoid receptors CB1 or CB2. Current knowledge about GPR55 expression and function in human placenta is very limited and motivated us to evaluate human placental GPR55 expression in relation to other human peripheral tissues and to analyze spatiotemporal GPR55 expression in human placenta. Gene expression analysis revealed low GPR55 levels in human placenta, when compared to spleen and lung, the organs showing highest GPR55 expression. Moreover, expression analysis showed 5.8 fold increased placental GPR55 expression at term compared to first trimester. Immunohistochemistry located GPR55 solely at the fetal endothelium of first trimester and term placentas. qPCR and immunocytochemistry consistently confirmed GPR55 expression in isolated primary placental arterial and venous endothelial cells. Incubation with L-α-lysophosphatidylinositol (LPI), the specific and functional ligand for GPR55, at a concentration of 1 µM, significantly enhanced migration of venous, but not arterial endothelial cells. LPI-enhanced migration was inhibited by the GPR55 antagonist O-1918, suggesting a role of the LPI-GPR55 axis in placental venous endothelium function.
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Affiliation(s)
- Julia Kremshofer
- Institute of Cell Biology, Histology and Embryology, Medical University Graz, Harrachgasse 21/VII, 8010, Graz, Austria
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26
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Prognostic value of hepatoma-derived growth factor-related protein 3 (HRP-3) methylation in non-small cell lung cancer. Genes Genomics 2015. [DOI: 10.1007/s13258-015-0277-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Guay SP, Brisson D, Mathieu P, Bossé Y, Gaudet D, Bouchard L. A study in familial hypercholesterolemia suggests reduced methylomic plasticity in men with coronary artery disease. Epigenomics 2015; 7:17-34. [DOI: 10.2217/epi.14.64] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Aim: To assess whether DNA methylation is associated with coronary artery disease (CAD). Materials & methods: An epigenome-wide analysis has been performed on leucocytes from familial hypercholesterolemic (FH) men with (n = 6) or without CAD (n = 6). The results were replicated in an extended sample of FH men (n = 61) and in non-FH men (n = 100) for two of the top differentially methylated loci. Results: FH men with CAD had significantly more hypomethylated and hypermethylated loci and showed less DNA methylation level variability compared with men without CAD (p < 0.001). Moreover, COL14A1 and MMP9 DNA methylation levels were associated with CAD, age of onset of CAD or CAD risk factors. Conclusion: These results suggest that epigenome-wide changes are associated with CAD occurrence in men.
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Affiliation(s)
- Simon-Pierre Guay
- Department of Biochemistry, Université de Sherbrooke, University-Affiliated Chicoutimi Hospital, 305 rue St-Vallier, Saguenay, Québec G7H 5H6, Canada
- ECOGENE-21 & Lipid Clinic, Chicoutimi Hospital, Saguenay, Québec, Canada
| | - Diane Brisson
- ECOGENE-21 & Lipid Clinic, Chicoutimi Hospital, Saguenay, Québec, Canada
- Department of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Patrick Mathieu
- Centre de recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, Canada
| | - Yohan Bossé
- Centre de recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, Canada
- Department of Molecular Medicine, Université Laval, Québec, Canada
| | - Daniel Gaudet
- ECOGENE-21 & Lipid Clinic, Chicoutimi Hospital, Saguenay, Québec, Canada
- Department of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Luigi Bouchard
- Department of Biochemistry, Université de Sherbrooke, University-Affiliated Chicoutimi Hospital, 305 rue St-Vallier, Saguenay, Québec G7H 5H6, Canada
- ECOGENE-21 & Lipid Clinic, Chicoutimi Hospital, Saguenay, Québec, Canada
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Clinical applications of epigenetics in cardiovascular disease: the long road ahead. Transl Res 2015; 165:143-53. [PMID: 24768945 PMCID: PMC4190107 DOI: 10.1016/j.trsl.2014.04.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 04/01/2014] [Accepted: 04/01/2014] [Indexed: 12/18/2022]
Abstract
Epigenetic processes, defined as heritable changes in gene expression that occur without changes to the DNA sequence, have emerged as a promising area of cardiovascular disease research. Epigenetic information transcends that of the genotype alone and provides for an integrated etiologic picture of cardiovascular disease pathogenesis because of the interaction of the epigenome with the environment. Epigenetic biomarkers, which include DNA methylation, histone modifications, and RNA-based mechanisms, are both modifiable and cell-type specific, which makes them not only responsive to the environment, but also an attractive target for drug development. However, the enthusiasm surrounding possible applications of cardiovascular epigenetics currently outpaces available evidence. In this review, the authors synthesize the evidence linking epigenetic changes with cardiovascular disease, emphasizing the gap between the translational potential and the clinical reality of cardiovascular epigenetics.
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Casanello P, Schneider D, Herrera EA, Uauy R, Krause BJ. Endothelial heterogeneity in the umbilico-placental unit: DNA methylation as an innuendo of epigenetic diversity. Front Pharmacol 2014; 5:49. [PMID: 24723887 PMCID: PMC3973902 DOI: 10.3389/fphar.2014.00049] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Accepted: 03/06/2014] [Indexed: 12/20/2022] Open
Abstract
The endothelium is a multifunctional heterogeneous tissue playing a key role in the physiology of every organ. To accomplish this role the endothelium presents a phenotypic diversity that is early prompted during vascular development, allowing it to cope with specific requirements in a time- and site-specific manner. During the last decade several reports show that endothelial diversity is also present in the umbilico-placental vasculature, with differences between macro- and microvascular vessels as well as arterial and venous endothelium. This diversity is evidenced in vitro as a higher angiogenic capacity in the microcirculation; or disparity in the levels of several molecules that control endothelial function (i.e., receptor for growth factors, vasoactive mediators, and adhesion molecules) which frequently are differentially expressed between arterial and venous endothelium. Emerging evidence suggests that endothelial diversity would be prominently driven by epigenetic mechanisms which also control the basal expression of endothelial-specific genes. This review outlines evidence for endothelial diversity since early stages of vascular development and how this heterogeneity is expressed in the umbilico-placental vasculature. Furthermore a brief picture of epigenetic mechanisms and their role on endothelial physiology emphasizing new data on umbilical and placental endothelial cells is presented. Unraveling the role of epigenetic mechanisms on long term endothelial physiology and its functional diversity would contribute to develop more accurate therapeutic interventions. Altogether these data show that micro- versus macro-vascular, or artery versus vein comparisons are an oversimplification of the complexity occurring in the endothelium at different levels, and the necessity for the future research to establish the precise source of cells which are under study.
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Affiliation(s)
- Paola Casanello
- Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile Santiago, Chile ; Division of Paediatrics, School of Medicine, Pontificia Universidad Católica de Chile Santiago, Chile
| | - Daniela Schneider
- Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile Santiago, Chile
| | - Emilio A Herrera
- Programa de Fisiopatologïa, Laboratorio de Función y Reactividad Vascular, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile Santiago, Chile
| | - Ricardo Uauy
- Division of Paediatrics, School of Medicine, Pontificia Universidad Católica de Chile Santiago, Chile
| | - Bernardo J Krause
- Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile Santiago, Chile
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