Samaporn Teeravechyan

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Emergence of the porcine epidemic diarrhea virus (PEDV) as a global threat to the swine industry underlies the urgent need for deeper understanding of this virus. To date, we have yet to identify functions for all the major gene products, much less grasp their implications for the viral life cycle and pathogenic mechanisms. A major reason is the lack of(More)
Human immunodeficiency virus 1 subtype D (HIV-1D) contributes to a significant portion of the HIV-1 disease burden in eastern and central Africa, and is associated with more rapid disease progression. Its viral envelope sequences, particularly in the third variable region (V3), are highly divergent from other major subtypes yet have rarely been studied to(More)
A major difference between binding and fusion assays commonly used to study the human immunodeficiency virus (HIV) envelope is the use of monomeric envelope for the former assay and oligomeric envelope for the latter. Due to discrepancies in their readouts for some mutants, envelope regions involved in CCR5 coreceptor usage were systematically studied to(More)
Vesicular stomatitis virus (VSV) is highly immunogenic and able to stimulate both innate and adaptive immune responses. However, its ability to induce adverse effects has held back the use of VSV as a potential vaccine vector. In this study we developed VSV-ΔP, a safe yet potent replication-defective recombinant VSV in which the phosphoprotein (P) gene was(More)
While viral inhibition by tethering of budding virions to host cell membranes has been focused upon as one of the main functions of BST-2/tetherin, BST-2 is thought to possess other functions as well. Overexpression of BST-2 was found here to down-regulate transient protein expression. Removal of the N- and C-terminal regions of BST-2, previously described(More)
Several mechanisms underlying intertypic interference between co-infecting influenza types A and B viruses (IAV and IBV) have been proposed. We have recently described one in which IBV's nucleoprotein (BNP) sequestered IAV's nucleoprotein (ANP) and suppressed IAV polymerase and growth. However, its anti-IAV capacity and limitations have not been fully(More)
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