Search

Your search keyword '"Julia Morere"' showing total 4 results
Start Over Author "Julia Morere" Topic [sdv.gen.gh]life sciences [q-bio]/genetics/human genetics
4 results on '"Julia Morere"'

1. Analysis of the 4q35 chromatin organization reveals distinct long-range interactions in patients affected with Facio-Scapulo-Humeral Dystrophy

Author

Camille Laberthonnière, Marie-Cécile Gaillard, Natacha Broucqsault, Cherif Badja, Stéphane Roche, Jérôme D. Robin, Julia Morere, Karine Nguyen, Frédérique Magdinier, Camille Dion, Marseille medical genetics - Centre de génétique médicale de Marseille (MMG), and Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
Male, Chromosomal Proteins, Non-Histone, [SDV.NEU.NB]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology, Gene Expression, lcsh:Medicine, Diseases, Pathogenesis, [SDV.BC.BC]Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC], 0302 clinical medicine, Gene expression, lcsh:Science, In Situ Hybridization, Fluorescence, Genetics, 0303 health sciences, Middle Aged, Cadherins, Subtelomere, Chromatin, Muscular Dystrophy, Facioscapulohumeral, Epigenetics, Female, Chromosomes, Human, Pair 4, Adult, Adolescent, Induced Pluripotent Stem Cells, Locus (genetics), Biology, Chromatin structure, Article, Young Adult, 03 medical and health sciences, Imaging, Three-Dimensional, [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN], Humans, Muscle, Skeletal, Gene, Aged, 030304 developmental biology, lcsh:R, Infant, Dystrophy, [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology, Fibroblasts, Chromosome 4, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Case-Control Studies, Mutation, lcsh:Q, 030217 neurology & neurosurgery
Abstract

International audience; 1 Facio-Scapulo Humeral dystrophy (FSHD) is the third most common myopathy, affecting 1 amongst 10,000 individuals (FSHD1, OMIM #158900). This autosomal dominant pathology is associated in 95% of cases with genetic and epigenetic alterations in the subtelomeric region at the extremity of the long arm of chromosome 4 (q arm). A large proportion of the remaining 5% of cases carry a mutation in the SMCHD1 gene (FSHD2, OMIM #158901). Here, we explored the 3D organization of the 4q35 locus by three-dimensions DNA in situ fluorescent hybridization (3D-FISH) in primary fibroblasts isolated from patients and healthy donors. We found that D4Z4 contractions and/or SMCHD1 mutations impact the spatial organization of the 4q35 region and trigger changes in the expression of different genes. Changes in gene expression were corroborated in muscle biopsies suggesting that the modified chromatin landscape impelled a modulation in the level of expression of a number of genes across the 4q35 locus in FSHD. Using induced pluripotent stem cells (hIPSC), we further examined whether chromatin organization is inherited after reprogramming or acquired during differentiation and showed that folding of the 4q35 region is modified upon differentiation. These results together with previous findings highlight the role of the D4Z4 macrosatellite repeat in the topological organization of chromatin and further indicate that the D4Z4-dependent 3D structure induces transcriptional changes of 4q35 genes expression.

Published
2019
Full Text
View/download PDF

2. Differential DNA methylation of the D4Z4 repeat in patients with FSHD and asymptomatic carriers

Author

Frédérique Magdinier, Rafaëlle Bernard, Stéphane Roche, Emmanuelle Salort-Campana, Natacha Broucqsault, Julia Morere, Marie-Cécile Gaillard, Karine Nguyen, Marc Bartoli, Camille Dion, Nicolas Lévy, Armand Tasmadjian, Francesca Puppo, Catherine Vovan, Gwenaëlle Bouget, Charlene Chaix, Shahram Attarian, Génétique Médicale et Génomique Fonctionnelle (GMGF), Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre de référence des maladies neuromusculaires et de la SLA, Hôpital de la Timone [CHU - APHM] (TIMONE), Département de génétique médicale [Hôpital de la Timone - APHM], Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE)-Institut National de la Santé et de la Recherche Médicale (INSERM), ANR-09-GENO-0038,FSHDecrypt,Analyse à grande échelle de la région 4qTer : décodage génétique et épigénétique du locus de la dystrophie musculaire Facio-Scapulo-Humérale(2009), Institut National de la Santé et de la Recherche Médicale (INSERM)-Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE)-Centre National de la Recherche Scientifique (CNRS), Bartoli, Marc, and Physiopathologie moléculaire: des maladies rares aux maladies communes - Analyse à grande échelle de la région 4qTer : décodage génétique et épigénétique du locus de la dystrophie musculaire Facio-Scapulo-Humérale - - FSHDecrypt2009 - ANR-09-GENO-0038 - GENO - VALID

Subjects
Male, Oncology, Pathology, Penetrance, Epigenesis, Genetic, 0302 clinical medicine, 0303 health sciences, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, DNA methylation, Bisulfite, Methylation, Muscular Dystrophy, Facioscapulohumeral, Pedigree, 3. Good health, Phenotype, Female, Epigenetics, Chromosomes, Human, Pair 4, medicine.symptom, Adult, musculoskeletal diseases, Heterozygote, medicine.medical_specialty, congenital, hereditary, and neonatal diseases and abnormalities, [SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics, Biology, Asymptomatic, MeDIP, Young Adult, 03 medical and health sciences, Internal medicine, [SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology, medicine, Humans, Genetic Predisposition to Disease, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, Genetic Testing, Methylated DNA immunoprecipitation, 030304 developmental biology, FSHD, D4Z4, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Neurology (clinical), Asymptomatic carrier, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, DNA hypomethylation
Abstract

International audience; Objective: We investigated the link between DNA hypomethylation and clinical penetrance in facioscapulohumeral dystrophy (FSHD) because hypomethylation is moderate and heterogeneous in patients and could not thus far be correlated with disease presence or severity. Methods: To investigate the link between clinical signs of FSHD and DNA methylation, we explored 95 cases (37 FSHD1, 29 asymptomatic individuals carrying a shortened D4Z4 array, 9 patients with FSHD2, and 20 controls) by implementing 2 approaches: methylated DNA immunoprecipitation and sodium bisulfite sequencing. Results: Both methods revealed statistically significant differences between asymptomatic carriers or controls and individuals with clinical FSHD, especially in the proximal region of the repeat. Absence of clinical expression in asymptomatic carriers is associated with a level of methylation similar to controls. Conclusions: We provide a proof of concept that the targeted approaches that we describe could be applied systematically to patient samples in routine diagnosis and suggest that local hypomethylation within D4Z4 might serve as a modifier for clinical expression of FSHD phenotype. Classification of evidence: This study provides Class III evidence that assays for hypomethylation within the D4Z4 region accurately distinguish patients with FSHD from individuals with D4Z4 contraction without FSHD.

Published
2014
Full Text
View/download PDF

3. Dysregulation of 4q35- and muscle-specific genes in fetuses with a short D4Z4 array linked to facio-scapulo-humeral dystrophy

Author

André Maues De Paula, Stéphane Roche, Julia Torrents, Marie Cécile Gaillard, Frédérique Magdinier, Henry Dufour, Natacha Broucqsault, Claude Desnuelle, Laure Sarda, Marc Bartoli, Carla Fernandez, Emmanuelle Salort-Campana, Karine Nguyen, Julie Dumonceaux, Anne Laure Chesnais, Julia Morere, Maxime Ferreboeuf, Shahram Attarian, Nicolas Lévy, Génétique Médicale et Génomique Fonctionnelle (GMGF), Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre de recherche en myologie, Université Pierre et Marie Curie - Paris 6 (UPMC)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Aix-Marseille Université - Faculté de médecine (AMU MED), Aix Marseille Université (AMU), Centre de référence des maladies neuromusculaires et de la SLA, Hôpital de la Timone [CHU - APHM] (TIMONE), Service d'Anatomie et Cytologie Pathologiques, Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE), Service de néphrologie pédiatrique [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut de Myologie, Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Lattice - Langues, Textes, Traitements informatiques, Cognition - UMR 8094 (Lattice), Université Sorbonne Nouvelle - Paris 3-Université Sorbonne Paris Cité (USPC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris sciences et lettres (PSL)-Département Littératures et langage - ENS Paris (LILA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL), Service de neurochirurgie [CHU Marseille], Université de la Méditerranée - Aix-Marseille 2-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE), Institut de signalisation, biologie du développement et cancer (ISBDC), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Département de génétique médicale [Hôpital de la Timone - APHM], Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de la Santé et de la Recherche Médicale (INSERM)-Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE)-Centre National de la Recherche Scientifique (CNRS), Département Littératures et langage - ENS Paris (LILA), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Sorbonne Paris Cité (USPC)-Université Sorbonne Nouvelle - Paris 3, Service de neurochirurgie, Université Nice Sophia Antipolis (... - 2019) (UNS), Département Littératures et langage (LILA), Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)

Subjects
musculoskeletal diseases, Adult, congenital, hereditary, and neonatal diseases and abnormalities, Develoment, DUX4, Locus (genetics), Penetrance, Biology, Muscle Development, 03 medical and health sciences, 0302 clinical medicine, Fetus, [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN], Genetics, medicine, Facioscapulohumeral muscular dystrophy, Humans, Muscular dystrophy, Molecular Biology, Genetics (clinical), 030304 developmental biology, MyoD Protein, Repetitive Sequences, Nucleic Acid, Homeodomain Proteins, 0303 health sciences, FSHD, D4Z4, Myogenesis, Dystrophy, Gene Expression Regulation, Developmental, Cell Differentiation, [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology, General Medicine, medicine.disease, Subtelomere, Muscular Dystrophy, Facioscapulohumeral, MYOD1, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Organ Specificity, Case-Control Studies, Muscle, Chromosomes, Human, Pair 4, 030217 neurology & neurosurgery
Abstract

International audience; Facio-scapulo-humeral dystrophy (FSHD) results from deletions in the subtelomeric macrosatellite D4Z4 array on the 4q35 region. Upregulation of the DUX4 retrogene from the last D4Z4 repeated unit is thought to underlie FSHD pathophysiology. However, no one knows what triggers muscle defect and when alteration arises. To gain further insights into the molecular mechanisms of the disease, we evaluated at the molecular level, the perturbation linked to the FSHD genotype with no a priori on disease onset, severity or penetrance and prior to any infiltration by fibrotic or adipose tissue in biopsies from fetuses carrying a short pathogenic D4Z4 array (n 5 6) compared with fetuses with a non-pathogenic D4Z4 array (n 5 21). By measuring expression of several muscle-specific markers and 4q35 genes including the DUX4 retrogene by an RT-PCR and western blotting, we observed a global dysregulation of genes involved in myogenesis including MYOD1 in samples with

Published
2013
Full Text
View/download PDF

4. Identification of a perinuclear positioning element in human subtelomeres that requires A-type lamins and CTCF

Author

Frédérique Magdinier, Serge Bauwens, Eric Gilson, Alexandre Ottaviani, Sophie Gazzo, Sylvie Rival-Gervier, Julia Morere, Evelyne Callet-Bauchu, Amina Boussouar, Delphine Rondier, Caroline Schluth-Bolard, Andrea M. Foerster, Laboratoire de Biologie Moléculaire de la Cellule (LBMC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Biologie du développement et reproduction (BDR), École nationale vétérinaire d'Alfort (ENVA)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Génétique Médicale et Génomique Fonctionnelle (GMGF), Institut National de la Santé et de la Recherche Médicale (INSERM)-Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche sur le Cancer et le Vieillissement (IRCAN), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Laboratoire d'Hématologie, Hospices Civils de Lyon (HCL), Laboratoire de biologie et modélisation de la cellule (LBMC UMR 5239), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Biologie du Développement et Reproduction (BDR), Institut National de la Recherche Agronomique (INRA), Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA), Centre National de la Recherche Scientifique (CNRS)-École nationale vétérinaire d'Alfort (ENVA)-Institut National de la Recherche Agronomique (INRA), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), École nationale vétérinaire - Alfort (ENVA)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Université Nice Sophia Antipolis (1965 - 2019) (UNS), and Magdinier, Frederique

Subjects
CCCTC-Binding Factor, [SDV]Life Sciences [q-bio], Uterine Cervical Neoplasms, Plasma protein binding, Genome, 0302 clinical medicine, Genetics, 0303 health sciences, telomere, General Neuroscience, Subtelomere, Lamin Type A, Female, Insulator Elements, Cell Nucleolus, Protein Binding, congenital, hereditary, and neonatal diseases and abnormalities, Down-Regulation, HUMAIN, [SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics, Biology, General Biochemistry, Genetics and Molecular Biology, Article, 03 medical and health sciences, Cell Line, Tumor, Animals, Humans, BIOLOGIE DU DEVELOPPEMENT, [INFO]Computer Science [cs], Molecular Biology, Locus control region, 030304 developmental biology, FSHD, D4Z4, General Immunology and Microbiology, Base Sequence, Carcinoma, genome stability & dynamics, Biological Transport, Epithelial Cells, Locus Control Region, CTCF, Telomere, Repressor Proteins, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Human genome, nuclear periphery, 030217 neurology & neurosurgery, Lamin
Abstract

International audience; The localization of genes within the nuclear space is of paramount importance for proper genome functions. However, very little is known on the cis-acting elements determining subnuclear positioning of chromosome segments. We show here that the D4Z4 human subtelomeric repeat localizes a telomere at the nuclear periphery. This perinuclear activity lies within an 80 bp sequence included within a region known to interact with CTCF and A-type Lamins. We further show that a reduced level of either CTCF or A-type Lamins suppresses the perinuclear activities of D4Z4 and that an array of multimerized D4Z4 sequence, which has lost its ability to bind CTCF and A-type Lamins, is not localized at the periphery. Overall, these findings reveal the existence of an 80 bp D4Z4 sequence that is sufficient to position an adjacent telomere to the nuclear periphery in a CTCF and A-type lamins-dependent manner. Strikingly, this sequence includes a 30 bp GA-rich motif, which binds CTCF and is present at several locations in the human genome.

Published
2009
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results