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Oncolytic H-1 parvovirus NS1 protein : identifying and characterizing new transcriptional and posttranslational regulatory elements
Abstract and Figures
H 1 parvovirus (H-1PV) is a little single stranded DNA virus that preferentially replicates in a lytic manner in transformed cells due to their expression profile that meets the requirements for the activation of H¬ 1 PV life cycle unlike normal cells. This feature is known as oncotropism. H 1PV genome is constituted by two transcriptional units. The first one is driven by the proliferation and transformation dependent P4 promoter and allows the expression of both non structural proteins NS1 and NS2, and the second one controls the expression of both capsid proteins VP1 and VP2 through the activation of P38 promoter. H-1PV life cycle tightly depends on NS1 protein that is involved in crucial events, including viral DNA replication, P38 promoter activation as well as cytotoxicity.NS1 protein is regulated at both transcriptional and post translational levels.My thesis aimed at identifying new determining elements for both of these regulations and characterizing their involvement in both H-1PV life cycle and oncotropism.
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