Project description:Ten cattle have been challenged with two Lumpy Skin Disease Virus (LSDV). They were sampled for whole blood immediately before (pre) and three and seven days after (post) infection challenge with two virus strains (H vs. O). The whole RNA-sequencing was done, and 150bp paired reads were assembled as the transcriptome. It was then computationally analyzed to find the differentially expressed genes (DGE) that enrich the gene ontology (GO) terms and KEGG pathways. Depending on the challenged LSDV strain, they influence the host response differently.
Project description:Proteomic analysis of lumpy skin disease virion (strain KSGP 0240), a poxvirus of the Capripoxvirus genus responsible of ruminant diseases in numerous countries.
Project description:Lumpy Skin Disease (LSD) is an endemic viral infection in Africa, newly emerging in Europe and becoming a global threat. There is host variation in response to infections in field studies and under carefully controlled artificial infections. It’s sometimes around 50% in clinical trials. This study aims to understand the mechanisms underlying this diversity and find the determinants to distinguish between susceptible (recovered) and resistant (non-recovered) animals through Differential Gene Expression (DGE) analysis. Five approximately 6-month-old male Holstein bulls were experimentally infected with LSDV. RNA sequencing was done for whole blood samples collected five days prior (pre-infection) to 3, 7, and 15 days after the infection (post-infection) challenge. After the challenge, two animals recovered, and three did not.
Project description:Lumpy skin disease virus (LSDV), a member of the capripoxvirus genus of the Poxviridae, is the etiologic agent of an important disease of cattle in Africa. Here we report the genomic sequence of LSDV. The 151-kbp LSDV genome consists of a central coding region bounded by identical 2.4 kbp-inverted terminal repeats and contains 156 putative genes. Comparison of LSDV with chordopoxviruses of other genera reveals 146 conserved genes which encode proteins involved in transcription and mRNA biogenesis, nucleotide metabolism, DNA replication, protein processing, virion structure and assembly, and viral virulence and host range. In the central genomic region, LSDV genes share a high degree of colinearity and amino acid identity (average of 65%) with genes of other known mammalian poxviruses, particularly suipoxvirus, yatapoxvirus, and leporipoxviruses. In the terminal regions, colinearity is disrupted and poxvirus homologues are either absent or share a lower percentage of amino acid identity (average of 43%). Most of these differences involve genes and gene families with likely functions involving viral virulence and host range. Although LSDV resembles leporipoxviruses in gene content and organization, it also contains homologues of interleukin-10 (IL-10), IL-1 binding proteins, G protein-coupled CC chemokine receptor, and epidermal growth factor-like protein which are found in other poxvirus genera. These data show that although LSDV is closely related to other members of the Chordopoxvirinae, it contains a unique complement of genes responsible for viral host range and virulence.
