Project description:This project involves RNA-Seq analysis of samples obtained from the Phase IIA clinical trial TB-019 (NCT01669096) which evaluated kinetics of response, safety, and immunogenicity of the GSK Mycobacterium tuberculosis (MTB) vaccine M72/AS01E (“GSK M72”). GSK M72 consists of the M72 recombinant fusion of Mycobacterium tuberculosis (MTB) proteins Rv0125 and Rv1196 in combination with the liposome, TLR4 ligand (MPL), and QS21 saponin adjuvant AS01E (Leroux-Roels et al., 2013).
Project description:Transcriptional profiling of mycobacterium tuberculosis clinical isolates in China comparing extensively drug-resistant tuberculosis with drug sensitive one.
Project description:Tuberculosis (TB) is a chronic granulomatous disease caused by the pathogen Mycobacterium tuberculosis. The success of M. tuberculosis can be attributed to its ability to evade protective host immune responses and its recalcitrance to antimicrobial chemotherapy. Detailed understanding of protective host immune response to TB is still lacking and there are limited reports that characterize host responses to TB at the site of disease. Furthermore, although cure of the majority of patients treated with the standard 6-month multidrug regimen indicates that treatment is highly effective, approximately 4-10% of clinically cured patients will develop recurrent disease within the first 12 months after completing therapy. We therefore analyzed BALF supernatant proteomes from pulmonary TB patients and patients at the end of standard anti-TB treatment to gain a better understanding of the host response at the site of disease. This would not only aid our understanding of localised host responses during TB disease, but could allow us to identify protein signatures associated with active TB disease or clinical cure.
Project description:Macrophages from cattles with different infectious status of bovine tuberculosis have different responses to in vitro Mycobacterium bovis challenge. This is confirmed in our previous study exploring several immune-related genes using qPCR. Microarrays can help us better understand the differences by screening thousands of genes.
Project description:Transcriptional profiling of mycobacterium tuberculosis clinical isolates in China comparing extensively drug-resistant tuberculosis with drug sensitive one. The same condition experiment. The samples were from the different drug-resistant strains. Only one replicate.
Project description:In Mycobacterium tuberculosis, the PhoPR two-component regulatory system controls production and secretion of proteins and lipid virulence effectors. Several mutations, present in phoR of Mycobacterium canettii relative to M. tuberculosis, impact the expression of the PhoP regulon and the pathogenicity of the strains. Here, we analyse by RNA-seq the expression profile of PhoP-regulated genes between the two M. tuberculosis strains H37Rv and HN878 and the two M. canettii isolates STB-Ks and STB-Kr.
Project description:Macrophages from cattles with different infectious status of bovine tuberculosis have different responses to in vitro Mycobacterium bovis challenge. This is confirmed in our previous study exploring several immune-related genes using qPCR. Microarrays can help us better understand the differences by screening thousands of genes. Monocytes Derived Macrophages from 3 TB-infected cattles and 3 TB-free cattles were challenged with Mycobacterium bovis at a MOI of 10 at 6 hours, and the control group were the same unchallenged macrophages at 6 hours.
Project description:Sirturo or Bedaquiline has been shown to inhibit the ATP synthase of Mycobacterium tuberculosis. We used microarrays to investigate compound-induced gene expression changes in general as well as effects on the transcription of the different ATP synthase genes and other metabolic pathways. Log phase Mycobacterium tuberculosis were cultivated in Middlebrook 7H9 broth and treated with 1 M-BM-5M Bedaquiline. We have extracted RNA from five different time-points after treatment: 0 min (T0), 30 min (T30), 60 min (T60), 180 min (T180) and 360 min (T360).
