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Добірка наукової літератури з теми "Différenciation/souche"
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Статті в журналах з теми "Différenciation/souche"
Bonhomme, B., M. Bui, L. Cany, P. Cavagni, B. Le Bail, and C. Castain. "Hépatocholangiocarcinome à différenciation neuroendocrine : une entité exceptionnelle, paradigme du concept de cellule souche hépatique." Annales de Pathologie 35, no. 5 (October 2015): 469. http://dx.doi.org/10.1016/j.annpat.2015.08.005.
Повний текст джерелаGarcia, Pauline, and Fabien Le Grand. "Histones méthyltransférases et myogenèse régénérative." médecine/sciences 39 (November 2023): 11–14. http://dx.doi.org/10.1051/medsci/2023145.
Повний текст джерелаRozès, Nicolas, and Aline Lonvaud-Funel. "Différenciation des principales espèces de levures de vin par l'analyse des acides gras libres totaux par chromatographie en phase gazeuse." OENO One 25, no. 2 (June 30, 1991): 85. http://dx.doi.org/10.20870/oeno-one.1991.25.2.1218.
Повний текст джерелаTapsoba, Abdoul Aziz, Guiguigbaza-Kossigan Dayo, Saidou Santi, Rokyatou Sissao, Aboubacar Sourabie, Estele Pelagie Sanou, Alfred Ouedraogo, and Aboubacar Toguyeni. "Influence de la température sur la spermatogénèse chez le tilapia du Nil, <i>Oreochromis niloticus</i> (Linnaeus, 1758) : une synthèse." International Journal of Biological and Chemical Sciences 17, no. 7 (February 22, 2024): 2925–42. http://dx.doi.org/10.4314/ijbcs.v17i7.25.
Повний текст джерелаДисертації з теми "Différenciation/souche"
Guérit, David. "Rôle des miR-29a et miR-574-3p au cours de la différenciation chondrocytaire de la cellule souche mésenchymateuse." Thesis, Montpellier 1, 2012. http://www.theses.fr/2012MON1T013/document.
Повний текст джерелаRoles of miR-29a and miR-574-3p during the chondrogenic differentiation of mesenchymal stem cells. With the constant increase of the lifespan, osteoarticular pathologies such as osteoarthritis or rheumatoid arthritis, characterized by articular cartilage degradation, are important public health problems. In absence of spontaneous regeneration, cartilage engineering approaches are being considered. Current techniques rely on autologous chondrocyte transplantation but in the majority of cases, this approach gives similar results as current surgeries. Due to their capacity of differentiation toward chondrocytes, mesenchymal stem cells (MSC) represent a new source of cells with therapeutic potential. However, production of a functional cartilage in vivo after implantation of expanded MSC is hampered by the difficulty to reproduce the complexity of the differentiation process to get mature chondrocytes from MSC. The objective of my Ph.D thesis aimed to identify micro-RNAs (miRNAs) modulated during chondrogenic differentiation of primary human MSCs and to study their role as well as their regulation in this process. We identified two miRNAs: miR-29a whose expression decreases progressively during the differentiation and miR-574-3p whose expression rapidly increases and stays constant until the end of the differentiation. Both miRNAs are regulated by the transcription factor Sox9 but in an opposite manner: Sox9 inhibits miR-29a and induces miR-574-3p. We show that YY1 directly interact with Sox9 to regulate miR-29a but not miR-574-3p; this interaction likely explaining the opposite effects of Sox9 on miR-29a and miR-574-3p expression. Moreover we showed that miR-29a and miR-574-3p are both inhibitors of chondrogenesis and we identified FOXO3A and RXRα as their respective targets. In conclusion, we identified two new miRNAs which are regulated by Sox9 and inhibitors of chondrogenesis. They act through the modulation of two target genes, whose role during chondrogenic differentiation of adult MSC was previously not characterized
Strick-Marchand, Hélène. "Étude de la différenciation hépatique : identification de cellules souches et des facteurs impliqués dans leur différenciation." Paris 6, 2002. http://www.theses.fr/2002PA066345.
Повний текст джерелаLoric, Sylvain. "Caractérisation de la lignée 1C11, modèle de cellule souche neuronale bipotentielle : étude de sa différenciation sérotoninergique et/ou catécholaminergique." Paris 5, 1994. http://www.theses.fr/1994PA05P634.
Повний текст джерелаLocker, Morgane Sara. "Etude des voies de signalisation paracrines et autocrines qui contrôlent la différenciation chondrogénique et ostéogénique d'une cellule souche mésoblastique." Paris 11, 2004. http://www.theses.fr/2004PA11T044.
Повний текст джерелаSharif, Ariane. "Contrôle du phénotype astrocytaire par le couple TGFα-EGFR". Paris 6, 2005. http://www.theses.fr/2005PA066636.
Повний текст джерелаWetzel, Thierry. "Obtention d'outils moléculaires pour la détection et la différenciation du virus de la sharka (PPV) : clonage de l'ARN génomique d'une nouvelle souche de PPV." Bordeaux 2, 1991. http://www.theses.fr/1991BOR22016.
Повний текст джерелаDridi, Bachir. "Etude de quelques aspects de la biologie de la mouche méditerranéenne des fruits : Ceratitis capitata Wiedemann (Diptère, Trypetidae). Différenciation entre souche d'élevage et population sauvage provenant d'Algérie." Aix-Marseille 3, 1990. http://www.theses.fr/1990AIX30004.
Повний текст джерелаJosserand, Manon. "Exploring chromatin states in the Drosophila intestinal lineage." Electronic Thesis or Diss., Université Paris sciences et lettres, 2022. http://www.theses.fr/2022UPSLS056.
Повний текст джерелаAdult 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
Julienne, Hanna. "Plasticité du programme spatio-temporel de réplication au cours du développement et de la différenciation cellulaire." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2013. http://tel.archives-ouvertes.fr/tel-00942719.
Повний текст джерелаFlici, Hakima. "Différenciation et plasticité des cellules souches neurales." Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-01070644.
Повний текст джерелаКниги з теми "Différenciation/souche"
M, Wassarman Paul, and Keller Gordon M. 1952-, eds. Differentiation of embryonic stem cells. Amsterdam: Elsevier Academic Press, 2003.
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