Academic literature on the topic 'État de la chromatine'
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Journal articles on the topic "État de la chromatine"
Grandjean, V. "Chromatine et infertilité." Basic and Clinical Andrology 19, no. 3 (September 2009): 184–85. http://dx.doi.org/10.1007/s12610-009-0031-1.
Full textJAMMES, H., and J. P. RENARD. "Epigénétique et construction du phénotype, un enjeu pour les productions animales ?" INRAE Productions Animales 23, no. 1 (February 8, 2010): 23–42. http://dx.doi.org/10.20870/productions-animales.2010.23.1.3283.
Full textAlabert, Constance. "La chromatine naissante révélée." médecine/sciences 30, no. 11 (November 2014): 937–40. http://dx.doi.org/10.1051/medsci/20143011002.
Full textPugieux, Céline, and François Nédélec. "La chromatine façonne le fuseau mitotique." médecine/sciences 26, no. 2 (February 2010): 139–42. http://dx.doi.org/10.1051/medsci/2010262139.
Full textRivière, Lise, Laetitia Gérossier, Olivier Hantz, and Christine Neuveut. "Virus de l’hépatite B et chromatine." médecine/sciences 32, no. 5 (May 2016): 455–58. http://dx.doi.org/10.1051/medsci/20163205010.
Full textKepten, Eldad, and Judith Miné-Hattab. "Sans lamine A, la chromatine s’emballe." médecine/sciences 33, no. 2 (February 2017): 126–30. http://dx.doi.org/10.1051/medsci/20173302004.
Full textSteinmetz, George, and Frédéric Junqua. "État-mort, État-fort, État-empire." Actes de la recherche en sciences sociales 201-202, no. 1 (2014): 112. http://dx.doi.org/10.3917/arss.201.0112.
Full textBaudre, Léa, Céline Vallot, and Justine Marsolier. "La chromatine bivalente préserve la plasticité transcriptionnelle." médecine/sciences 38, no. 5 (May 2022): 425–27. http://dx.doi.org/10.1051/medsci/2022050.
Full textTerranova, R., and M. Djabali. "Ikaros, chromatine et contrôle du développement lymphocytaire." médecine/sciences 16, no. 5 (2000): 685. http://dx.doi.org/10.4267/10608/1711.
Full textCarazo-Salas, R. "Ran ou le parfum de la chromatine." médecine/sciences 17, no. 10 (2001): 1056. http://dx.doi.org/10.4267/10608/1821.
Full textDissertations / Theses on the topic "État de la chromatine"
Josserand, Manon. "Exploring chromatin states in the Drosophila intestinal lineage." Electronic Thesis or Diss., Université Paris sciences et lettres, 2022. http://www.theses.fr/2022UPSLS056.
Full textAdult stem cells self-renew and differentiate into one or several cell types, thus ensuring tissue homeostasis. Understanding their regulation is crucial to have a better comprehension of uncontrolled proliferation and altered differentiation mechanisms occurring during tumorigenesis and age-dependent functional decline of tissues. My thesis aimed to better understand what chromatin states are associated with adult stem cell activity in vivo in a homeostatic tissue using the Drosophila adult intestine as a model. We have previously provided evidence of roles of conserved chromatin remodeling factors in controlling intestinal stem cell (ISC) proliferation (Gervais et al, 2019), highlighting their importance in the regulation of the intestinal lineage. During my PhD, I expanded on these studies to investigate chromatin state changes associated with stem cell differentiation at the genome-wide scale.By generating cell-type specific whole-genome binding maps of 5 chromatin proteins (RNA Pol II, Brahma, Polycomb, Heterochromatin Protein 1 and Histone linker H1) using Targeted DamID and performing subsequent Hidden Markov modelling to define chromatin states, we found that 7 major chromatin states exist in the intestinal lineage. These are 2 actives states (“Yellow” and “Red”), 3 repressive states (Polycomb-enriched “BlueR”, HP1-enriched “Green”, Histone H1-enriched “Black”) and 2 intermediate states (“Yellow Weak” and “Blue Mixed”). Examining these states at genes revealed that many genes, including key regulators of ISC activity, undergo lineage-specific chromatin state transitions upon differentiation to enterocytes (ECs) or enteroendocrine cells (EEs), the two differentiated intestinal cell types. These results indicate that differences of chromatin organization between the EC and EE lineages might be critical for cell fate decisions.We also found that differentiation genes follow specific chromatin state changes during differentiation. First, the key transcriptional regulators of lineage specification including prospero and nubbin undergo a transition from the BlueR state (Polycomb-enriched) to active states upon differentiation. These data suggest a potential regulatory function of Polycomb-marked chromatin for control of the transcriptional hierarchy within the ISC lineage. In contrast, we found that physiology and metabolic activity-related genes follow a transition from the Histone H1-enriched Black state in ISCs to active states in ECs and EEs upon their activation, suggesting a previously uncharacterized mode of regulation of physiology-related genes. Following this, we investigated the effect of genetic perturbation of HP1 and H1 on chromatin accessibility, transcription and tissue homeostasis. While HP1 is required to maintain heterochromatin, our results suggest that it also regulates the expression of genes with cellular metabolic functions independently of chromatin accessibility. Furthermore, HP1 is necessary to maintain ISC proliferation. Finally, we found a role for Histone H1 in regulating the EE transcriptional program in ISCs, suggesting that it could prime the ISCs towards the EE fate.Overall, our extensive characterization of chromatin state changes during differentiation provides a valuable resource to better understand the regulatory programs that control cell fate and identity, as well as physiological functions in this homeostatic tissue
Déjardin, Jérôme. "Séquences et facteurs nécéssaires à la mémoire épigénétique des états chromatiniens." Montpellier 2, 2004. http://www.theses.fr/2004MON20039.
Full textSultana, Tania. "L'influence du contexte génomique sur la sélection du site d'intégration par les rétrotransposons humains L1." Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR4133.
Full textRetrotransposons are mobile genetic elements that employ an RNA intermediate and a reverse transcription step for their replication. Long INterspersed Elements-1 (LINE-1 or L1) form the only autonomously active retrotransposon family in humans. Although most copies are defective due to the accumulation of mutations, each individual genome contains an average of 100 retrotransposition-competent L1 copies, which contribute to the dynamics of contemporary human genomes. L1 integration sites in the host genome directly determine the genetic consequences of the integration and the fate of the integrated copy. Thus, where L1 integrates in the genome, and whether this process is random, is critical to our understanding of human genome evolution, somatic genome plasticity in cancer and aging, and host-parasite interactions. To characterize L1 insertion sites, rather than studying endogenous L1 which have been subjected to evolutionary selective pressure, we induced de novo L1 retrotransposition by transfecting a plasmid-borne active L1 element into HeLa S3 cells. Then, we mapped de novo insertions in the human genome at nucleotide resolution by a dedicated deep-sequencing approach, named ATLAS-seq. Finally, de novo insertions were examined for their proximity towards a large number of genomic features. We found that L1 preferentially integrates in the lowly-expressed and weak enhancer chromatin segments. We also detected several hotspots of recurrent L1 integration. Our results indicate that the distribution of de novo L1 insertions is non-random both at local and regional scales, and pave the way to identify potential cellular factors involved in the targeting of L1 insertions
Mauvieux, Laurent. "Accessibilité à l'ADN de la recombinase V(D)J : le locus TCR alpha/delta comme modèle." Paris 5, 2002. http://www.theses.fr/2002PA05N108.
Full textThe diversity of antigen receptors is composed from the recombination of their V, D and J segments. The mecanisms underlying the regulation of the recombination are poorly understood, but rely on the accessibility of the DNA to the V(D)J recombinase. We showed in this work that the two T cell receptors TCR J alpha are not randomly, but rather coincidentally rearranged in a given T cell. This coincidence relies, in part, on the presence of <> (TEA), a cis regulatorygenetic element located upstream of the TCRJA cluster
Germier, Thomas. "Dynamique de la chromatine et transcription." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30376.
Full textChromatin dynamics are affected by biological processes. To understand how physical behaviour of chromatin and biology work together, we need tools to analyse chromatin motion in living cells. Several systems exist to fluorescently label DNA loci and to effectively determine their position within the nucleus, but they have drawbacks in mammalian cells when it comes to studying chromatin motion in the context of biological processes. This is especially true when it comes to mechanisms where DNA needs to be processed in the vicinity of the labeling. To study chromatin dynamics in cellulo, the Bystricky group developed the ANCHOR DNA labelling system. ANCHOR relies on the insertion of a short, non-repetitive sequence (ANCH) in the host genome. This sequence contains binding sites for a protein (OR) which once bound, oligomerize and allow visualization of the tagged locus. ANCHOR is derived from the bacterial chromosome partitioning systems. The tool was successfully implemented in budding yeast (Saad et al. 2014) and more recently in Drosophila (H. Chen, Fujioka, and Gregor 2017; Gomez-Lamarca et al. 2018). One of my thesis projects was to apply the ANCHOR system in human cells. The ANCH3 sequence was inserted randomly and in one copy in the genome of breast cancer cell line MCF7 by Hafida Sellou (M2 student) and Fatima Moutahir (technician). To insert the ANCH3 sequence, MCF7 cells were first modified to insert a FRT site in the genome. Then, a plasmid containing ANCH3 coupled to Cyclin D1 transgene and a FRT site was transfected. Recombination between the two FRT site was promoted by Flipase. The fluorescently-tagged OR3 protein was either stably or transiently expressed to allow imaging of the CCND1 gene (see (Germier et al. 2017, 2018) for details). We wanted to establish a proof of principle for the use of ANCHOR in mammalian cells. MCF7 cells containing a CCND1 transgene, called G7-CCND1 (Germier et al. 2017) were stably transfected with OR3-Santaka and the CCND1 locus was followed using fast- time lapse microscopy over 24 h through one cell division in a single cell. We could effectively follow the transgene locus without much photobleaching. The presence of OR3-Santaka protein on the chromatin locus did not disturb replication and two loci were effectively observed in the two daughter cells (Germier et al. 2018). Using the ANCHOR3 system, we hence developed a powerful tool to study both rapid, short events such as transcription and long-term events taking place over days, such as cell division or differentiation
Mauger, Oriane. "Interconnexions entre épissage alternatif et chromatine." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066093/document.
Full textIn humans, alternative splicing affects almost all genes in the genome and generates extensive repertoires of RNAs and proteins. Splicing is a highly regulated process which occurs primarily when the RNA is being synthesized on chromatin. Many studies suggest that chromatin and epigenetic marks influence splicing choices to the corresponding locus. Conversely, other data suggest that splicing can modulate epigenetic marks. During my thesis, I studied different ways of crosstalk between splicing and chromatin. First, I investigated the effect of DNA methylation on splicing regulation. I have shown that the enzymes that methylate DNA have an overall effect on the splicing of exons with enriched methylation. My data suggest that proteins which bind to methylated DNA are involved in this regulation. On the other hand, I explored the impact of alternative splicing on chromatin regulation studying its impact on the expression and activity of both histone methyltransferases (HMTase): SUV39H2 and G9A. G9A and SUV39H2 generate variants transcripts whose expression is regulated according to tissues. All variants transcripts encode proteins. Conservation of G9A splice variants in species and no differences in their HMTase activity, lead us to propose that G9A alternative splicing is associated with a non-histone function. Conversely, SUV39H2 isoforms exhibit different HMTases activities, and regulate the expression of different target genes. All our results provide new connections in chromatin - splicing coupling and support a model in which they harbor self-influence
Ben, Mlih Abdellah. "Structures politiques du Maroc colonial : d'un "état" sultanien à un "état" sédimental." Paris 2, 1988. http://www.theses.fr/1988PA020042.
Full textThe political structures of colonial morocco are the result of the encounter between two "state-like" formations belonging to different cultural zones and historical eras. The interweaving of the sultan-rules stratum with the col lonial stratum gives rise to a particular type of "state" which i have called the "sedimentary state". The meeting of the two strata (sultan-rules and colonial) constitutes a moment of sedimentation understood as institutional consolidation and agglutination. In this sedimentary formation, the tasks of legitimation and documentation arre assigned to the power of the "sultanate". The protectorate, as a juridical-ideological category, is presented as the foundation upon which the "sedimentary state" is constructed. It supplies the themes of legitimation and initiates the cohabitation between the two coponents parts of the sedimentary system. The "sedimentary state" ascribes a central role to knowledge which constitutes an instrument for decoding and information gathering. Thus the soldier-investigator is the main character of the colonial administration. The joint need to partition the territory and control the population places him at the heart of the administrative apparatus. (. . . )
Revaud, Déborah. "Etude des cassures de l'ADN et des mécanismes de réparation dans les séquences télomériques interstitielles : Influence de la structure chromatinienne." Paris 11, 2009. http://www.theses.fr/2009PA11T033.
Full textIriqat, Dalal. "Construire un État palestinien." Paris 1, 2011. http://www.theses.fr/2011PA010261.
Full textConde, e. Silva Natalia. "Le nucléosome centromérique et la fibre de chromatine." Paris 6, 2007. http://www.theses.fr/2007PA066131.
Full textBooks on the topic "État de la chromatine"
Christian, Marion, and Roche Joëlle, eds. Chromatine: Aspects structuraux et fonctionnels. Paris: Editions du Centre national de la recherche scientifique, 1991.
Find full textChromatin. New York: Springer-Verlag, 1989.
Find full textAlbiach, Anne-Marie. État. Windsor, Vermont: AWEDE, 1989.
Find full textTransformation(s): État agile, état durable. Paris: Autrement, 2013.
Find full textRobin, Cook. État critique. Paris: Éd. France loisirs, 2009.
Find full textSaint-Marc, Renaud Denoix de. L' État. Paris: Presses universitaires de France, 2004.
Find full textLamy, Francis. État d'urgence. Paris: Economica, 2018.
Find full textD'un État-bébé à un État congolais responsable. Paris: Harmattan, 2008.
Find full textDavid, Allis C., and Wu Carl, eds. Chromatin and chromatin remodeling enzymes. San Diego: Elsevier/Academic Press, 2004.
Find full textRiviale, Philippe. L' état réformateur, état conservateur: Autorités sociales, altérité sociale. Paris: Harmattan, 2005.
Find full textBook chapters on the topic "État de la chromatine"
Krause, Skadi Siiri. "Politik/état politique." In Tocqueville-Handbuch, 255. Stuttgart: J.B. Metzler, 2021. http://dx.doi.org/10.1007/978-3-476-05754-9_77.
Full textKrause, Skadi Siiri. "Politik/état politique." In Tocqueville-Handbuch, 387–88. Stuttgart: J.B. Metzler, 2024. http://dx.doi.org/10.1007/978-3-476-05979-6_80.
Full text"Chromosomes, nucléosomes et chromatine." In L'épigénétique en images, 9–11. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2245-4-002.
Full text"Chromosomes, nucléosomes et chromatine." In L'épigénétique en images, 9–11. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2245-4.c002.
Full text"Le remodelage de la chromatine." In L'épigénétique en images, 59–61. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2245-4-013.
Full text"Le remodelage de la chromatine." In L'épigénétique en images, 59–61. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2245-4.c013.
Full textMalandain, Eugénie. "État." In Dictionnaire du commerce équitable, 119. Editions Quæ, 2012. http://dx.doi.org/10.3917/quae.blanc.2012.01.0119.
Full textLefebvre, Rémi. "État." In Histoire globale des socialismes, 219–31. Presses Universitaires de France, 2021. http://dx.doi.org/10.3917/puf.keuch.2021.01.0219.
Full textLeca, Jean. "État." In Dictionnaire des politiques publiques, 231–47. Presses de Sciences Po, 2010. http://dx.doi.org/10.3917/scpo.bouss.2010.01.0231.
Full textLe Galès, Patrick. "État." In Dictionnaire d'économie politique, 216–21. Presses de Sciences Po, 2018. http://dx.doi.org/10.3917/scpo.smith.2018.01.0216.
Full textConference papers on the topic "État de la chromatine"
Abolou, Camille. "Dynamique des français populaires africains : état des faits, état de la recherche et prospective." In 2ème Congrès Mondial de Linguistique Française. Les Ulis, France: EDP Sciences, 2010. http://dx.doi.org/10.1051/cmlf/2010067.
Full textPolian, Pavel. "Shoah, censure et état des archives." In Témoigner sur la Shoah en URSS. Fabula, 2015. http://dx.doi.org/10.58282/colloques.2688.
Full textJancovici, Jean-Marc. "Les besoins énergétiques mondiaux / état et prospective." In Nucléaire et environnement. Les Ulis, France: EDP Sciences, 2015. http://dx.doi.org/10.1051/jtsfen/2015nuc14.
Full textEl Abed, Mohamed Ould. "L’investissement en Mauritanie État des lieux et perspectives." In Quelles politiques économiques en faveur de l’investissement et de l’emploi en période de crises et de reconstitution de l’économie mondiale ? Francisco Baptista Gil, 2023. http://dx.doi.org/10.23882/eb.23.0535-01.
Full textAldama, Juan Alonso. "D’un état à l’autre : la question des limites." In Actes du congrès de l’Association Française de Sémiotique. Limoges: Université de Limoges, 2024. http://dx.doi.org/10.25965/as.8389.
Full textFoct, F., and O. Raquet. "Vieillissement du béton - état des recherches et des connaissances." In Durée de fonctionnement des réacteurs. Les Ulis, France: EDP Sciences, 2014. http://dx.doi.org/10.1051/jtsfen/2014dur17.
Full textMorin, P. "SOLEIL tient ses promesses : état d'avancement et premiers résultats." In UVX 2008 - 9e Colloque sur les Sources Cohérentes et Incohérentes UV, VUV et X : Applications et Développements Récents. Les Ulis, France: EDP Sciences, 2009. http://dx.doi.org/10.1051/uvx/2009019.
Full textDROIT, Julie, and Hervé DITCHI. "État d’avancement d’un guide sur la réversibilité des éoliennes offshore." In Conférence Méditerranéenne Côtière et Maritime - Coastal and Maritime Mediterranean Conference. Editions Paralia, 2015. http://dx.doi.org/10.5150/cmcm.2015.049.
Full textCollot, Michel. "Faire corps avec le paysage." In Paysages & valeurs : de la représentation à la simulation. Limoges: Université de Limoges, 2008. http://dx.doi.org/10.25965/as.3464.
Full textCoorevits, Thierry, and François Hennebelle. "Typologie et conception des machines à mesurer tridimensionnelles : un état de l’art." In 17th International Congress of Metrology, edited by Bernard Larquier. Les Ulis, France: EDP Sciences, 2015. http://dx.doi.org/10.1051/metrology/20150013002.
Full textReports on the topic "État de la chromatine"
Daniellou, François, Marcel Simard, and Ivan Boissières. Les facteurs humains et organisationnels de la sécurité industrielle: un état de l’art. Fondation pour une culture de sécurité industrielle, March 2010. http://dx.doi.org/10.57071/820qjv.
Full textBizos, Isabelle, Nicolas Boileau, Céline Chuiton, and Guillaume Quéruel. Revues scientifiques des unités de recherche de l’ESR normand : état des lieux et prospective. Normandie Université, June 2023. http://dx.doi.org/10.51203/rapport.nu.000001.
Full textTurner, B., M. Quat, R. Debicki, and P. Thurston. Sentier de réhabilitation Jane Goodall, Grand Sudbury : remise en état du paysage du Grand Sudbury. Natural Resources Canada/CMSS/Information Management, 2015. http://dx.doi.org/10.4095/329903.
Full textSappin, A. A., M. G. Houlé, and T. Clark. Minéralisations en Ni-Cu-(EGP) dans la Province de Grenville : État des connaissances et nouvelles perspectives. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/306387.
Full textde Marcellis-Warin, Nathalie, Geneviève Dufour, Molivann Pannot, and Louise Poirier. État des lieux et recommandations stratégiques pour favoriser le développement des talents en mathématiques au Québec. CIRANO, February 2023. http://dx.doi.org/10.54932/gqih7311.
Full textFiorini, Susanna, Martine Garnier-Rizet, Katell Hernandez Morin, Franck Barbin, Franziska Humphreys, Amélie Josselin-Leray, Natalie Kübler, et al. Rapport du groupe de travail Traductions et science ouverte. Ministère de l'enseignement supérieur et de la recherche, December 2020. http://dx.doi.org/10.52949/20.
Full textFiorini, Susanna, Martine Garnier-Rizet, Katell Hernandez Morin, Franck Barbin, Franziska Humphreys, Amélie Josselin-Leray, Natalie Kübler, et al. Rapport du groupe de travail Traductions et science ouverte. Ministère de l'enseignement supérieur et de la recherche, December 2020. http://dx.doi.org/10.52949/20.
Full textFiorini, Susanna, Martine Garnier-Rizet, Katell Hernandez Morin, Franck Barbin, Franziska Humphreys, Amélie Josselin-Leray, Natalie Kübler, et al. Rapport du groupe de travail Traductions et science ouverte. Ministère de l'enseignement supérieur et de la recherche, December 2020. http://dx.doi.org/10.52949/20.
Full textRohan, Hana. État de préparation et engagement communautaire concernant El Niño dans la région de l’Afrique orientale et australe. Institute of Development Studies, January 2024. http://dx.doi.org/10.19088/sshap.2023.029.
Full textG., Lescuyer, Hubert D., Maïdou H., Mendoula E.E., and Awal M. Le marché domestique du sciage artisanal en République Centrafricaine: État des lieux, opportunités et défis. Center for International Forestry Research (CIFOR), 2014. http://dx.doi.org/10.17528/cifor/004387.
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