Please use this identifier to cite or link to this item: http://dx.doi.org/10.25673/85392
Title: Characterization of age-related changes within the lysine acetylation pattern of immune effector cells
Author(s): Toma, GeorgianaLook up in the Integrated Authority File of the German National Library
Referee(s): Seliger, BarbaraLook up in the Integrated Authority File of the German National Library
Navarrete Santos, AnneLook up in the Integrated Authority File of the German National Library
Kaether, ChristophLook up in the Integrated Authority File of the German National Library
Granting Institution: Martin-Luther-Universität Halle-Wittenberg
Issue Date: 2022
Extent: 1 Online-Ressource (102 Seiten)
Type: HochschulschriftLook up in the Integrated Authority File of the German National Library
Type: PhDThesis
Exam Date: 2022-03-07
Language: English
URN: urn:nbn:de:gbv:3:4-1981185920-873445
Abstract: Im Laufe der Zeit ist der menschliche Organismus mehr Krankheitserregern ausgesetzt. Dadurch verringert sich die Reserve an naiven T-Zellen. Deacetylase-Inhibitoren (HDACis) wurden zur Behandlung einer Vielzahl an Krankheiten. Deshalb ist es unabdingbar, das Zusammenspiel zwischen Acetylierung und Alterung innerhalb von T-Zellen zu untersuchen. Zu diesem Zweck wurden CD8+-T-Zellen von jungen und alten Blutspendern isoliert und mit HDACi behandelt. Die funktionellen Auswirkungen auf T-Zellen Aktivierung wurden anschließend mittels biomolekularer Vorgehensweisen beurteilt. Es wurde eine Korrelation zwischen der HDACi-Behandlung und der Aktivierung von T-Zellen festgestellt. Während eine Erhöhung der Acetylierung die Apoptoserate der Zellen nicht stört, verändert sie das Cytoskelett und die Signalproteine.
Over time, the human organism is exposed to pathogens, which reduces the reserve of naïve T cells. Deacetylase inhibitors (HDACis) are used to treat a wide range of conditions. Therefore, this work studies the interplay between acetylation and aging within T cells. To this end, CD8+ T cells were isolated from young and old donors and treated with HDACi. The functional effects on T cell activation were then evaluated through biomolecular approaches. To better understand the intracellular outcome of acetylation, high-throughput transcript analysis and protein expression profiles were also performed, along with the relative protein and transcript expression of proteins participating in the signaling pathways involved in the activation and differentiation of T cells. A correlation was found between HDACi treatment and T cell activation. While an increase in acetylation does not disturb the apoptosis rate of the cells, it alters the cytoskeleton and signaling proteins.
URI: https://opendata.uni-halle.de//handle/1981185920/87344
http://dx.doi.org/10.25673/85392
Open Access: Open access publication
License: In CopyrightIn Copyright
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