Project description:Generation of single cell and single nuclei transcriptomic data of post-mortem tissues from a Malawi cohort. We aim to explore differences in the immune response between Covid-19, Non-Covid19 LRTD (lower respiratory tract disease) and no-LTRD at the single cell level from lung, nasal and blood. Autopsies were conducted through minimally invasive autopsy using needle-biopsy. Samples were then processed with a 10X Chromium in Blantyre, Malawi. Some samples were run individually and others pooled. Pooled samples were split using single nucleotide polymorphisms or through hashtag oligonucelotides. Data processing and analysis was performed in R using the Seurat package.
Project description:Klebsiella pneumoniae is an arising threat to human health. However, host immune responses in response to this bacterium remain to be elucidated. The goal of this study was to identify the dominant host immune responses associated with Klebsiella pneumoniae pulmonary infection. Pulmonary mRNA profiles of 6-8-weeks-old BALB/c mice infected with/without Klebsiella pneumoniae were generated by deep sequencing using Illumina Novaseq 6000. qRT–PCR validation was performed using SYBR Green assays. Using KEGG (Kyoto Encyclopedia of Genes and Genomes) analysis, we identified several immune associated pathways, including complement and coagulation cascades, Toll-like receptor signaling pathway, Rap1 signaling pathway, chemokine signaling pathway, TNF signaling pathway, phagosome and NOD-like receptor signaling pathway, were involved in Klebsiella pneumoniae pulmonary infection. Using ICEPOP (Immune CEll POPulation) analysis, we found that several cell types were involved in the host immune response to Klebsiella pneumoniae pulmonary infection, including dendritic cells, macrophages, monocytes, NK (natural killer) cells, stromal cells. Further, IL-17 chemokines were significantly increased during Klebsiella pneumoniae infection. This study provided evidence for further studying the pathogenic mechanism of Klebsiella pneumoniae pneumonia infection.
2021-03-30 | GSE171048 | GEO
Project description:Mycobacterium tuberculosis population survey - Blantyre, Malawi
| PRJNA1221228 | ENA
Project description:Enterotoxigenic Escherichia coli in Blantyre, Malawi
Project description:This SuperSeries is composed of the following subset Series: GSE35746: Comparative analysis of regulatory elements between Escherichia coli and Klebsiella pneumoniae by genome-wide transcription start site profiling [tiling arrays] GSE35821: Comparative analysis of regulatory elements between Escherichia coli and Klebsiella pneumoniae by genome-wide transcription start site profiling [TSS-Seq] Refer to individual Series