Hochschulschrift
Mechanisms of enhancer regulation
Zusammenfassung: The generation and maintenance of intricate spatiotemporal patterns of gene expression in multicellular organisms requires the establishment of complex mechanisms of transcriptional regulation. Estimations that up to one million enhancers exist in the human genome accentuates the utmost importance of this type of cis-regulatory element for gene regulation. However, surprisingly little is known about the mechanisms used to temporarily or permanently activate or inactivate enhancers during cellular differentiation. The current work addresses the question how enhancer regulation can be achieved.Using the chemokine (C-C motif) ligand gene Ccl22 as a model, the first example is based on the question how the activation of an enhancer can be prevented in a physiological context. Ccl22 is expressed by myeloid cells, such as dendritic cells, upon exposure to inflammatory stimuli. The expression in other cell types, such as fibroblasts, is prevented by the strong accumulation of H3K9me3 at the enhancer's proximal region. This accumulation is attenuated in myeloid cells through activity of the stimulus-induced demethylase Jmjd2d.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Anmerkungen
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Albert-Ludwigs-Universität Freiburg, Dissertation, 2015
- Schlagwort
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Krebsforschung
Enhancer
Genregulation
Immunologie
Immunsystem
Lymphozyt
Leukozyt
Immunität
Resistenz
Immunchemie
- Ereignis
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Veröffentlichung
- (wo)
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Freiburg
- (wer)
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Universität
- (wann)
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2015
- Urheber
- Beteiligte Personen und Organisationen
- DOI
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10.6094/UNIFR/10194
- URN
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urn:nbn:de:bsz:25-freidok-101948
- Rechteinformation
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Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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25.03.2025, 13:51 MEZ
Datenpartner
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Objekttyp
- Hochschulschrift
Beteiligte
- Schnappauf, Oskar
- Hecht, Andreas
- Grosschedl, Rudolf
- Universität
Entstanden
- 2015
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