Project description:Rift Valley fever virus causes severe disease in humans and livestock and in some cases can be fatal. There is concern about the use of Rift Valley fever virus as a bioweapon since it can be transmitted through the air, and there are no vaccines or antiviral treatments. Airborne transmission of the virus causes severe inflammation of the brain, yet little is known about the immune response against the virus in this organ. Here, we investigated the immune response in the brain to Rift Valley fever virus following intranasal infection. We determined that microglia, the resident immune cells of the brain, initiate a robust response to Rift Valley fever virus infection and identified a key immune pathway that is critical for the ability of microglia to respond to infection. When this immune pathway is rendered non-functional, mice have a dysregulated response to infection in the brain.
Project description:Crosslinking immunoprecipitation and sequencing was used to characterize nucleocapsid-RNA interactions in Rift Valley fever virus infection. This data set includes illumina HiSeq paired-end reads of Rift Valley fever virus infected HEK293 cells. The sequencing libraries were generated from nucleocapsid-bound RNAs.
Project description:A new haloalkaliphilic species of Wenzhouxiangella, strain AB-CW3 was isolated from a system of alkaline soda lakes in the Kulunda Steppe. Its complete, circular genome was assembled from combined nanopore and illumina sequencing and its proteome was determined for three different experimental conditions: growth on Staphylococcus cells, casein, or peptone. AB-CW3 is an aerobic bacterium feeding mainly on proteins and peptides.
2020-11-03 | PXD021036 | Pride
Project description:Shotgun metagenomic analysis of African Soda lakes
Project description:Rift valley fever (RVF) is an emerging zoonotic disease and it is caused by Rift valley fever phlebovirus (RVFV). This virus is commonly transmitted in endemic areas between wild ruminants and mosquitoes, mainly by mosquitoes of Culex and Aedes genus. Starting from 2000, several outbreaks have been reported outside the African continent, in countries facing the Mediterranean Sea, such as Saudi Arabia. The available vaccines for ruminants present limited efficacy or residual pathogenic effects. Consequently, new strategies are urgently required to limit the expansion of this zoonotic virus. The main objective of this work is to investigate the molecular responses of Culex pipiens to RVFV focusing mainly on genes implicated in the classical innate immunity pathways, RNAi mechanism and apoptosis process in order to elucidate the implicated genes in viral infection. The immune altered genes here described could be potential targets to control RVFV infection in mosquitoes. Some of the genes related to the immune defense response were previously described in others mosquito-arbovirus models, as also in Drosophila and human. To our knowledge, this study elucidates for the first time the Cx. pipiens-RVFV interaction in terms of defense infection-response, which was largely under studied and provides information to develop new approaches to prevent and control the expansion of the virus in the future.
Project description:Rift Valley fever virus (RVFV) is an important human and livestock pathogen. To better understand the molecular virology and mechanisms of pathogenesis in human HEK293 cells during RVFV MP-12 strain infection, we used high-throughput mRNA sequencing technology to identify and analyze differentially expressed genes and mRNA splicing patterns triggered by infection or by expression of RVFV nucleocapsid protein. Here we supply the results of our RNA-seq analysis of RVFV-infected cells and cells transfected with RVFV nucleocapsid protein expressing plasmids. Some of the results were published in: "Transcriptome profiling in Rift Valley fever virus infected cells reveals modified transcriptional and alternative splicing programs" by Katherine E Havranek, Luke Adam White, Jean-Marc Lanchy, J Stephen Lodmell. PLoS One. 2019 May 28;14(5):e0217497. PMID: 31136639 PMCID: PMC6538246.
Project description:Here, we applied a microarray-based metagenomics technology termed GeoChip 5.0 to examined functional gene structure of microbes in four lakes at low and high elevations of approximately 530 and 4,600 m a.s.l., respectively.
