Project description:A human embryonic fibroblast cell line was synchronously infected with poliovirus in the absence or presence of interferon-α, or with vacciniavirus, a virus that is not inhibited by interferon. The titers were sufficient to yield productive infection in a majority of the cells. The cells were harvested in triplicate at various time-points, and the transcriptosome compared with mock infected cells using oligo-based 35 k microarrays. The project had two purposes: to characterize the cellular response and to look for candidate genes involved in viral defense. The changes in gene expression due to vaccinia virus did not correspond to those caused by poliovirus. More surprisingly, neither did the changes when comparing 8 h and 16 h of poliovirus infection. However, a large proportion of the genes up-regulated by interferon-α were also up-regulated by poliovirus, both at 8 h and 16 h. Interferon-α inhibited poliovirus replication, thus the observations suggest that the cells do launch an antiviral response to poliovirus. Moreover, as interferon genes were not induced, the data indicate that several of the relevant genes can be activated in an interferon independent manner. Further analyses of the data led to a list of candidate antiviral genes. Functional information was limited, or absent, for most of these genes. Keywords: Poliovirus; Vacciniavirus; Interferon; Microarray; Gene expression; Defense genes
Project description:Laboratory strain poliovirus was hybridized to the array as a control run and a proof of concept. Degree of cross hybridization between polio nucleic acid and non-polio probes was evaluated. Specificity of the probe design was determined. Keywords: control study: target detection and specificity
2008-02-28 | GSE10566 | GEO
Project description:Poliovirus detection from Canadian wastewater
Project description:This experiment seeks to investigate the lengths and modifications of the poly(A) tails of hepatitis A virus (HAV) RNA by nanopore long-reads sequencing, and whether RG7834, an inhibitor of TENT4 noncanonical poly(A) polymerases, alters the poly(A) tails of HAV RNA. Poliovirus (PV) infected cells were analyzed in parallel for comparison.
2025-04-30 | GSE293395 | GEO
Project description:Complete genome sequences of type 2 Sabin-like poliovirus from Nigerian poliovirus surveillance, 2016-2018
| PRJNA779084 | ENA
Project description:Resolution of an Imprecise Poliovirus Recombinant