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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Examining Virus Interactions with Host Serine Hydrolases in Immunometabolism

Stern, Tiffany 12 January 2024 (has links)
As obligatory intracellular parasites, viruses are in a constant battle with their host to establish infection. They can facilitate their propagation by modulating host immune or metabolic pathways. This modulation involves targeting various molecular factors such as microRNAs (miRNA), enzymes, or small molecules. Understanding how viruses alter the chemical makeup of a cell is crucial to identifying what pathways are being targeted, furthering our understanding of the virus life cycle, and may aid in identifying biomarkers of disease. Here, we examine host-virus interactions in the context of two viruses, hepatitis c virus (HCV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). First, the modulation of serine hydrolases by a pro-viral microRNA, miRNA-122, is investigated using activity-based protein profiling (ABPP). This study identifies a downstream target of miRNA-122 that is differentially activated during HCV infection which can be targeted pharmacologically to reduce HCV infectivity. Second, we apply similar techniques to identify serine hydrolase changes associated with SARS-CoV-2 infection. Results point towards enrichment of endocannabinoid metabolism which may offer an alternative therapeutic avenue for combating SARS-CoV-2 infection. Together, the work presented in this thesis provides avenues for further investigation into miRNA-122 interactions during HCV infection and endocannabinoid metabolism in SARS-CoV-2 infection.

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