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Spatially Heterogeneous Choroid Plexus Transcriptomes Encode Positional Identity and Contribute to Regional CSF Production
The Journal of Neuroscience, March 25, 2015 • 35(12):4903–4916 • 4903 Development/Plasticity/Repair Spatially Heterogeneous Choroid Plexus Transcriptomes Encode Positional Identity and Contribute to Regional CSF Production Melody P. Lun,1,3 XMatthew B. Johnson,2 Kevin G. Broadbelt,1 Momoko Watanabe,4 Young-jin Kang,4 Kevin F. Chau,1 Mark W. Springel,1 Alexandra Malesz,1 Andre´ M.M. Sousa,5 XMihovil Pletikos,5 XTais Adelita,1,6 Monica L. Calicchio,1 Yong Zhang,7 Michael J. Holtzman,7 Hart G.W. Lidov,1 XNenad Sestan,5 Hanno Steen,1 XEdwin S. Monuki,4 and Maria K. Lehtinen1 1Department of Pathology, and 2Division of Genetics, Boston Children’s Hospital, Boston, Massachusetts 02115, 3Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, Massachusetts 02118, 4Department of Pathology and Laboratory Medicine, University of California Irvine School of Medicine, Irvine, California 92697, 5Department of Neurobiology and Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, Connecticut 06510, 6Department of Biochemistry, Federal University of Sa˜o Paulo, Sa˜o Paulo 04039, Brazil, and 7Pulmonary and Critical Care Medicine, Department of Medicine, Washington University, St Louis, Missouri 63110 A sheet of choroid plexus epithelial cells extends into each cerebral ventricle and secretes signaling factors into the CSF. To evaluate whether differences in the CSF proteome across ventricles arise, in part, from regional differences in choroid plexus gene expression, we defined the transcriptome of lateral ventricle (telencephalic) versus fourth ventricle (hindbrain) choroid plexus. We find that positional identitiesofmouse,macaque,andhumanchoroidplexiderivefromgeneexpressiondomainsthatparalleltheiraxialtissuesoforigin.We thenshowthatmolecularheterogeneitybetweentelencephalicandhindbrainchoroidplexicontributestoregion-specific,age-dependent protein secretion in vitro. -
Genome-Wide Screening Identifies a KCNIP1 Copy Number Variant As a Genetic Predictor for Atrial Fibrillation
ARTICLE Received 21 Oct 2014 | Accepted 16 Nov 2015 | Published 2 Feb 2016 DOI: 10.1038/ncomms10190 OPEN Genome-wide screening identifies a KCNIP1 copy number variant as a genetic predictor for atrial fibrillation Chia-Ti Tsai1,2,3, Chia-Shan Hsieh4,5, Sheng-Nan Chang2,3, Eric Y. Chuang4,5, Kwo-Chang Ueng6,7, Chin-Feng Tsai6,7, Tsung-Hsien Lin8, Cho-Kai Wu1, Jen-Kuang Lee1, Lian-Yu Lin1, Yi-Chih Wang1, Chih-Chieh Yu1, Ling-Ping Lai1, Chuen-Den Tseng1, Juey-Jen Hwang1, Fu-Tien Chiang1,9 & Jiunn-Lee Lin1 Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia. Previous genome- wide association studies had identified single-nucleotide polymorphisms in several genomic regions to be associated with AF. In human genome, copy number variations (CNVs) are known to contribute to disease susceptibility. Using a genome-wide multistage approach to identify AF susceptibility CNVs, we here show a common 4,470-bp diallelic CNV in the first intron of potassium interacting channel 1 gene (KCNIP1) is strongly associated with AF in Taiwanese populations (odds ratio ¼ 2.27 for insertion allele; P ¼ 6.23 Â 10 À 24). KCNIP1 insertion is associated with higher KCNIP1 mRNA expression. KCNIP1-encoded protein potassium interacting channel 1 (KCHIP1) is physically associated with potassium Kv channels and modulates atrial transient outward current in cardiac myocytes. Overexpression of KCNIP1 results in inducible AF in zebrafish. In conclusions, a common CNV in KCNIP1 gene is a genetic predictor of AF risk possibly pointing to a functional pathway. 1 Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, No. -
The Capacity of Long-Term in Vitro Proliferation of Acute Myeloid
The Capacity of Long-Term in Vitro Proliferation of Acute Myeloid Leukemia Cells Supported Only by Exogenous Cytokines Is Associated with a Patient Subset with Adverse Outcome Annette K. Brenner, Elise Aasebø, Maria Hernandez-Valladares, Frode Selheim, Frode Berven, Ida-Sofie Grønningsæter, Sushma Bartaula-Brevik and Øystein Bruserud Supplementary Material S2 of S31 Table S1. Detailed information about the 68 AML patients included in the study. # of blasts Viability Proliferation Cytokine Viable cells Change in ID Gender Age Etiology FAB Cytogenetics Mutations CD34 Colonies (109/L) (%) 48 h (cpm) secretion (106) 5 weeks phenotype 1 M 42 de novo 241 M2 normal Flt3 pos 31.0 3848 low 0.24 7 yes 2 M 82 MF 12.4 M2 t(9;22) wt pos 81.6 74,686 low 1.43 969 yes 3 F 49 CML/relapse 149 M2 complex n.d. pos 26.2 3472 low 0.08 n.d. no 4 M 33 de novo 62.0 M2 normal wt pos 67.5 6206 low 0.08 6.5 no 5 M 71 relapse 91.0 M4 normal NPM1 pos 63.5 21,331 low 0.17 n.d. yes 6 M 83 de novo 109 M1 n.d. wt pos 19.1 8764 low 1.65 693 no 7 F 77 MDS 26.4 M1 normal wt pos 89.4 53,799 high 3.43 2746 no 8 M 46 de novo 26.9 M1 normal NPM1 n.d. n.d. 3472 low 1.56 n.d. no 9 M 68 MF 50.8 M4 normal D835 pos 69.4 1640 low 0.08 n.d. -
Noelia Díaz Blanco
Effects of environmental factors on the gonadal transcriptome of European sea bass (Dicentrarchus labrax), juvenile growth and sex ratios Noelia Díaz Blanco Ph.D. thesis 2014 Submitted in partial fulfillment of the requirements for the Ph.D. degree from the Universitat Pompeu Fabra (UPF). This work has been carried out at the Group of Biology of Reproduction (GBR), at the Department of Renewable Marine Resources of the Institute of Marine Sciences (ICM-CSIC). Thesis supervisor: Dr. Francesc Piferrer Professor d’Investigació Institut de Ciències del Mar (ICM-CSIC) i ii A mis padres A Xavi iii iv Acknowledgements This thesis has been made possible by the support of many people who in one way or another, many times unknowingly, gave me the strength to overcome this "long and winding road". First of all, I would like to thank my supervisor, Dr. Francesc Piferrer, for his patience, guidance and wise advice throughout all this Ph.D. experience. But above all, for the trust he placed on me almost seven years ago when he offered me the opportunity to be part of his team. Thanks also for teaching me how to question always everything, for sharing with me your enthusiasm for science and for giving me the opportunity of learning from you by participating in many projects, collaborations and scientific meetings. I am also thankful to my colleagues (former and present Group of Biology of Reproduction members) for your support and encouragement throughout this journey. To the “exGBRs”, thanks for helping me with my first steps into this world. Working as an undergrad with you Dr. -
DNA Methylation Associated with Postpartum Depressive Symptoms Overlaps Findings from a Genome-Wide Association Meta-Analysis of Depression Dana M
Lapato et al. Clinical Epigenetics (2019) 11:169 https://doi.org/10.1186/s13148-019-0769-z RESEARCH Open Access DNA methylation associated with postpartum depressive symptoms overlaps findings from a genome-wide association meta-analysis of depression Dana M. Lapato1,2* , Roxann Roberson-Nay2,3, Robert M. Kirkpatrick2,3, Bradley T. Webb2,3, Timothy P. York1,2,4† and Patricia A. Kinser5† Abstract Background: Perinatal depressive symptoms have been linked to adverse maternal and infant health outcomes. The etiology associated with perinatal depressive psychopathology is poorly understood, but accumulating evidence suggests that understanding inter-individual differences in DNA methylation (DNAm) patterning may provide insight regarding the genomic regions salient to the risk liability of perinatal depressive psychopathology. Results: Genome-wide DNAm was measured in maternal peripheral blood using the Infinium MethylationEPIC microarray. Ninety-two participants (46% African-American) had DNAm samples that passed all quality control metrics, and all participants were within 7 months of delivery. Linear models were constructed to identify differentially methylated sites and regions, and permutation testing was utilized to assess significance. Differentially methylated regions (DMRs) were defined as genomic regions of consistent DNAm change with at least two probes within 1 kb of each other. Maternal age, current smoking status, estimated cell-type proportions, ancestry-relevant principal components, days since delivery, and chip position served as covariates to adjust for technical and biological factors. Current postpartum depressive symptoms were measured using the Edinburgh Postnatal Depression Scale. Ninety-eight DMRs were significant (false discovery rate < 5%) and overlapped 92 genes. Three of the regions overlap loci from the latest Psychiatric Genomics Consortium meta-analysis of depression. -
Dimethylation of Histone 3 Lysine 9 Is Sensitive to the Epileptic Activity
1368 MOLECULAR MEDICINE REPORTS 17: 1368-1374, 2018 Dimethylation of Histone 3 Lysine 9 is sensitive to the epileptic activity, and affects the transcriptional regulation of the potassium channel Kcnj10 gene in epileptic rats SHAO-PING ZHANG1,2*, MAN ZHANG1*, HONG TAO1, YAN LUO1, TAO HE3, CHUN-HUI WANG3, XIAO-CHENG LI3, LING CHEN1,3, LIN-NA ZHANG1, TAO SUN2 and QI-KUAN HU1-3 1Department of Physiology; 2Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University; 3General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China Received February 18, 2017; Accepted September 13, 2017 DOI: 10.3892/mmr.2017.7942 Abstract. Potassium channels can be affected by epileptic G9a by 2-(Hexahydro-4-methyl-1H-1,4-diazepin-1-yl)-6,7-di- seizures and serve a crucial role in the pathophysiology of methoxy-N-(1-(phenyl-methyl)-4-piperidinyl)-4-quinazolinamine epilepsy. Dimethylation of histone 3 lysine 9 (H3K9me2) and tri-hydrochloride hydrate (bix01294) resulted in upregulation its enzyme euchromatic histone-lysine N-methyltransferase 2 of the expression of Kir4.1 proteins. The present study demon- (G9a) are the major epigenetic modulators and are associated strated that H3K9me2 and G9a are sensitive to epileptic seizure with gene silencing. Insight into whether H3K9me2 and G9a activity during the acute phase of epilepsy and can affect the can respond to epileptic seizures and regulate expression of transcriptional regulation of the Kcnj10 channel. genes encoding potassium channels is the main purpose of the present study. A total of 16 subtypes of potassium channel Introduction genes in pilocarpine-modelled epileptic rats were screened by reverse transcription-quantitative polymerase chain reac- Epilepsies are disorders of neuronal excitability, characterized tion, and it was determined that the expression ATP-sensitive by spontaneous and recurrent seizures. -
Pflugers Final
CORE Metadata, citation and similar papers at core.ac.uk Provided by Serveur académique lausannois A comprehensive analysis of gene expression profiles in distal parts of the mouse renal tubule. Sylvain Pradervand2, Annie Mercier Zuber1, Gabriel Centeno1, Olivier Bonny1,3,4 and Dmitri Firsov1,4 1 - Department of Pharmacology and Toxicology, University of Lausanne, 1005 Lausanne, Switzerland 2 - DNA Array Facility, University of Lausanne, 1015 Lausanne, Switzerland 3 - Service of Nephrology, Lausanne University Hospital, 1005 Lausanne, Switzerland 4 – these two authors have equally contributed to the study to whom correspondence should be addressed: Dmitri FIRSOV Department of Pharmacology and Toxicology, University of Lausanne, 27 rue du Bugnon, 1005 Lausanne, Switzerland Phone: ++ 41-216925406 Fax: ++ 41-216925355 e-mail: [email protected] and Olivier BONNY Department of Pharmacology and Toxicology, University of Lausanne, 27 rue du Bugnon, 1005 Lausanne, Switzerland Phone: ++ 41-216925417 Fax: ++ 41-216925355 e-mail: [email protected] 1 Abstract The distal parts of the renal tubule play a critical role in maintaining homeostasis of extracellular fluids. In this review, we present an in-depth analysis of microarray-based gene expression profiles available for microdissected mouse distal nephron segments, i.e., the distal convoluted tubule (DCT) and the connecting tubule (CNT), and for the cortical portion of the collecting duct (CCD) (Zuber et al., 2009). Classification of expressed transcripts in 14 major functional gene categories demonstrated that all principal proteins involved in maintaining of salt and water balance are represented by highly abundant transcripts. However, a significant number of transcripts belonging, for instance, to categories of G protein-coupled receptors (GPCR) or serine-threonine kinases exhibit high expression levels but remain unassigned to a specific renal function. -
Spatial RNA Sequencing Identifies Robust Markers Of
fnmol-14-699562 July 2, 2021 Time: 17:11 # 1 ORIGINAL RESEARCH published: 08 July 2021 doi: 10.3389/fnmol.2021.699562 Spatial RNA Sequencing Identifies Robust Markers of Vulnerable and Resistant Human Midbrain Dopamine Neurons and Their Expression in Parkinson’s Disease Julio Aguila1†, Shangli Cheng2,3†, Nigel Kee1,4,5, Ming Cao1, Menghan Wang2,3, Qiaolin Deng2,3*† and Eva Hedlund1,4,5*† 1 Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden, 2 Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden, 3 Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden, 4 Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden, 5 Department Edited by: of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden Ildikó Rácz, University Hospital Bonn, Germany Reviewed by: Defining transcriptional profiles of substantia nigra pars compacta (SNc) and ventral Sandra Blaess, tegmental area (VTA) dopamine neurons is critical to understanding their differential University of Bonn, Germany Kelvin C. Luk, vulnerability in Parkinson’s Disease (PD). Here, we determine transcriptomes of human University of Pennsylvania, SNc and VTA dopamine neurons using LCM-seq on a large sample cohort. We United States apply a bootstrapping strategy as sample input to DESeq2 and identify 33 stably *Correspondence: differentially expressed genes (DEGs) between these two subpopulations. We also Qiaolin Deng [email protected] compute a minimal sample size for identification of -
A Novel PLEKHA7 Interactor at Adherens Junctions
Thesis PDZD11: a novel PLEKHA7 interactor at adherens junctions GUERRERA, Diego Abstract PLEKHA7 is a recently identified protein of the AJ that has been involved by genetic and genomic studies in the regulation of miRNA signaling and cardiac contractility, hypertension and glaucoma. However, the molecular mechanisms behind PLEKHA7 involvement in tissue physiology and pathology remain unknown. In my thesis I report novel results which uncover PLEKHA7 functions in epithelial and endothelial cells, through the identification of a novel molecular interactor of PLEKHA7, PDZD11, by yeast two-hybrid screening, mass spectrometry, co-immunoprecipitation and pulldown assays. I dissected the structural basis of their interaction, showing that the WW domain of PLEKHA7 binds to the N-terminal region of PDZD11; this interaction mediates the junctional recruitment of PDZD11, identifying PDZD11 as a novel AJ protein. I provided evidence that PDZD11 forms a complex with nectins at AJ, its PDZ domain binds to the PDZ-binding motif of nectins. PDZD11 stabilizes nectins promoting the early steps of junction assembly. Reference GUERRERA, Diego. PDZD11: a novel PLEKHA7 interactor at adherens junctions. Thèse de doctorat : Univ. Genève, 2016, no. Sc. 4962 URN : urn:nbn:ch:unige-877543 DOI : 10.13097/archive-ouverte/unige:87754 Available at: http://archive-ouverte.unige.ch/unige:87754 Disclaimer: layout of this document may differ from the published version. 1 / 1 UNIVERSITE DE GENÈVE FACULTE DES SCIENCES Section de Biologie Prof. Sandra Citi Département de Biologie Cellulaire PDZD11: a novel PLEKHA7 interactor at adherens junctions THÈSE Présentée à la Faculté des sciences de l’Université de Genève Pour obtenir le grade de Doctor ès science, mention Biologie par DIEGO GUERRERA de Benevento (Italie) Thèse N° 4962 GENÈVE Atelier d'impression Repromail 2016 1 Table of contents RÉSUMÉ .................................................................................................................. -
New Approach for Untangling the Role of Uncommon Calcium-Binding Proteins in the Central Nervous System
brain sciences Review New Approach for Untangling the Role of Uncommon Calcium-Binding Proteins in the Central Nervous System Krisztina Kelemen * and Tibor Szilágyi Department of Physiology, Doctoral School, Faculty of Medicine, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540142 Târgu Mures, , Romania; [email protected] * Correspondence: [email protected]; Tel.: +40-746-248064 Abstract: Although Ca2+ ion plays an essential role in cellular physiology, calcium-binding proteins (CaBPs) were long used for mainly as immunohistochemical markers of specific cell types in different regions of the central nervous system. They are a heterogeneous and wide-ranging group of proteins. Their function was studied intensively in the last two decades and a tremendous amount of informa- tion was gathered about them. Girard et al. compiled a comprehensive list of the gene-expression profiles of the entire EF-hand gene superfamily in the murine brain. We selected from this database those CaBPs which are related to information processing and/or neuronal signalling, have a Ca2+- buffer activity, Ca2+-sensor activity, modulator of Ca2+-channel activity, or a yet unknown function. In this way we created a gene function-based selection of the CaBPs. We cross-referenced these findings with publicly available, high-quality RNA-sequencing and in situ hybridization databases (Human Protein Atlas (HPA), Brain RNA-seq database and Allen Brain Atlas integrated into the HPA) and created gene expression heat maps of the regional and cell type-specific expression levels of the selected CaBPs. This represents a useful tool to predict and investigate different expression patterns and functions of the less-known CaBPs of the central nervous system. -
N-Methyl-D-Aspartate Receptors Mediate Activity-Dependent Down
Lee et al. Molecular Brain (2015) 8:4 DOI 10.1186/s13041-015-0094-1 RESEARCH Open Access N-methyl-D-aspartate receptors mediate activity- dependent down-regulation of potassium channel genes during the expression of homeostatic intrinsic plasticity Kwan Young Lee1†, Sara E Royston2,3†, Max O Vest1, Daniel J Ley1, Seungbae Lee1, Eric C Bolton1 and Hee Jung Chung1,2* Abstract Background: Homeostatic intrinsic plasticity encompasses the mechanisms by which neurons stabilize their excitability in response to prolonged and destabilizing changes in global activity. However, the milieu of molecular players responsible for these regulatory mechanisms is largely unknown. Results: Using whole-cell patch clamp recording and unbiased gene expression profiling in rat dissociated hippocampal neurons cultured at high density, we demonstrate here that chronic activity blockade induced by the sodium channel blocker tetrodotoxin leads to a homeostatic increase in action potential firing and down-regulation of potassium channel genes. In addition, chronic activity blockade reduces total potassium current, as well as protein expression and current of voltage-gated Kv1 and Kv7 potassium channels, which are critical regulators of action potential firing. Importantly, inhibition of N-Methyl-D-Aspartate receptors alone mimics the effects of tetrodotoxin, including the elevation in firing frequency and reduction of potassium channel gene expression and current driven by activity blockade, whereas inhibition of L-type voltage-gated calcium channels has no effect. Conclusions: Collectively, our data suggest that homeostatic intrinsic plasticity induced by chronic activity blockade is accomplished in part by decreased calcium influx through N-Methyl-D-Aspartate receptors and subsequent transcriptional down-regulation of potassium channel genes. -
Oestrogen Receptor Β Mediates the Actions of Bisphenol-A on Ion Channel Expression in Mouse Pancreatic Beta Cells
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by idUS. Depósito de Investigación Universidad de Sevilla Diabetologia (2019) 62:1667–1680 https://doi.org/10.1007/s00125-019-4925-y ARTICLE Oestrogen receptor β mediates the actions of bisphenol-A on ion channel expression in mouse pancreatic beta cells Juan Martinez-Pinna1,2,3 & Laura Marroqui1,2,4 & Abdelkrim Hmadcha4,5 & Javier Lopez-Beas4,5 & Sergi Soriano1,2,3 & Sabrina Villar-Pazos1,2,4 & Paloma Alonso-Magdalena1,2,4 & Reinaldo S. Dos Santos1,2,4 & Ivan Quesada1,2,4 & Franz Martin4,5 & Bernat Soria4,5 & Jan-Åke Gustafsson6,7 & Angel Nadal1,2,4 Received: 18 February 2019 /Accepted: 26 April 2019 /Published online: 27 June 2019 # Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Aims/hypothesis Bisphenol-A (BPA) is a widespread endocrine-disrupting chemical that has been associated with type 2 dia- betes development. Low doses of BPA modify pancreatic beta cell function and induce insulin resistance; some of these effects are mediated via activation of oestrogen receptors α (ERα)andβ (ERβ). Here we investigated whether low doses of BPA regulate the expression and function of ion channel subunits involved in beta cell function. Methods Microarray gene profiling of isolated islets from vehicle- and BPA-treated (100 μg/kg per day for 4 days) mice was performed using Affymetrix GeneChip Mouse Genome 430.2 Array. Expression level analysis was performed using the nor- malisation method based on the processing algorithm ‘robust multi-array average’. Whole islets or dispersed islets from C57BL/ 6J or oestrogen receptor β (ERβ) knockout (Erβ−/−) mice were treated with vehicle or BPA (1 nmol/l) for 48 h.