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Gene expression analysis of human monocytic cells (THP-1) exposure to Streptococcus suis serotype 2

ABSTRACT: Streptococcus suis is an important zoonosis pathogen that causes significant economic losses worldwide characterized by meningitis, septicaemia, arthritis, bronchopneumonia endocarditis. Streptcoccus suis 2 strain SC19 was isolated in Sichuan province in China, during the outbreak in 2005. Septicemia is most popular symptoms for SC19 infection, and mortality is high. We used human acute monocytic leukemia cell line (THP-1) infected SC19 to analysis the pathomechanism of septicemia in SS2 infection. Human acute monocytic leukemia cell line (THP-1) cells were stimulated with Streptcoccus suis 2 (SS2) strain SC19. We added SS2 to THP-1 cells at a MOI of 1:1 (bacteria/cells). Uninfected control cells were incubated with PBS only. After 3 hours incubation, cells were collected for RNA extraction and hybridization on Affymetrix microarrays. A total of 4 samples were challenged, and 4 samples were used as controls. 4 microarrays were used in this experiment.

ORGANISM(S): Homo sapiens

SUBMITTER: Tan Chen

PROVIDER: E-GEOD-20508 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Gene expression analysis of human monocytic cells (THP-1) exposure to Streptococcus suis serotype 2

Project description:Streptococcus suis is an important zoonosis pathogen that causes significant economic losses worldwide characterized by meningitis, septicaemia, arthritis, bronchopneumonia endocarditis. Streptcoccus suis 2 strain SC19 was isolated in Sichuan province in China, during the outbreak in 2005. Septicemia is most popular symptoms for SC19 infection, and mortality is high. We used human acute monocytic leukemia cell line (THP-1) infected SC19 to analysis the pathomechanism of septicemia in SS2 infection.

2010-03-06 | GSE20508 | GEO

Understanding Streptococcus suis serotype 2 infection in pigs through a transcriptional approach

Project description:Streptococcus suis serotype 2 is an important pathogen of pigs, and the disease it causes is characterized by meningitis, septicaemia and pneumonia with high mortality. The pathogen is also an emerging zoonotic agent and threatens humans that are exposed to pigs or their by-products. We investigated the response of PBMC (Peripheral Blood Mononuclear Cell), brain and lung tissues to infection with S. suis 2 strain SC19 by using the Affymetrix Porcine Genome Array. Six piglets free of S. suis 2 were allocated randomly to the infected group and the uninfected group. Each piglet of the infected group was intravenous injection with Streptococcus suis 2 strain SC19 at a dose of 3Ã105 colony-forming units (CFU). Each piglet of the noninfected group was treated similarly with an identical volume of PBS as control. At 24 h after challenge, the pigs were slaughtered and their brains, lungs and PBMC were collected with RNase-free equipment for microarray analysis.

2010-10-26 | E-GEOD-24889 | biostudies-arrayexpress

investigation of the pathogenesis of H1N1 influenza virus and swine streptococcus suis serotype 2 co-infection in pigs by microarray analysis

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Transcription profiling of human cell line THP-1 cells exposed to Daboiatoxin and cytokines involved in melioidosis caused by B. pseudomalli

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Mutation Mapping of Streptococcus suis serotype 2 strains

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Effect of p38 MAPK inhibitor SB203580 on gene expression in monocytic THP-1 cells stimulated with HIV gp120 or LPS.

Project description:Human monocytic THP-1 cells were exposed to HIV envelope protein gp120 or bacterial LPS in the presence and absence of a pharmacological inhibitor of the p38 mitogen-activated protein kinase (MAPK) for 4 and 24 hours. A microarray analysis was performed in order to assess differential gene expression at the RNA level. Human monocytic THP-1 cells were pre-treated for 15 min with 10 M-BM-5M SB203580 followed by exposure for 4 h or 24 h to 1 nM HIV gp120SF162 or 1 M-BM-5g/ml LPS. 0.1 % DMSO and 0.001 % BSA served as vehicle controls for SB203580 and gp120, respectively. The experimental samples were 1) control 4 h, 2) gp120 4 h, 3) LPS 4 h, 4) SB203580 (SB) 4 h, 5) SB+gp120 4 h, 6) SB+LPS 4 h, 7) control 24 h, 8) gp120 24 h, 9) LPS 24 h, 10) SB 24 h, 11) SB+gp120 24 h, 12) SB+LPS 24 h. RNA was isolated from three biological replicates for each experimental condition using an RNeasy kit commercially available from Qiagen (Valencia, CA). Roughly 2 X 106 cells were collected to obtain 500 ng M-bM-^@M-^S 2 M-BM-5g RNA. RNA quality (A260/A280 ratio ~1.8-2.0) was tested using the NanoDrop system from Thermo Scientific (Rockford, IL). High quality RNA was then provided to the Microarray/ QPCR Facility Core at Sanford-Burnham Medical Research Institute and DNA microarray was performed using the whole genome gene-expression analysis HumanHT-12 v4 Expression BeadChip kit from Illumina (San Diego, CA). Microarray results were further analyzed by Dr. Roy Williams (Bioinformatics Core, Sanford-Burnham Medical Research Institute) using the GeneSpring GX platform

2014-12-25 | E-GEOD-53712 | biostudies-arrayexpress

Quantitative proteomics revealed modulation of macrophages by MetQ gene of Streptococcus suis serotype 2.

Project description:MetQ gene of Streptococcus suis serotype 2 deletion strain has attenuated antiphagocytosis. However,the mechanism of antiphagocytosis and pathogenesis of MetQ in SS2 has remained unclear. In this study, stable isotope labeling by amino acids in cell culture (SILAC) based liquid chromatography-mass spectrometry (LC-MS) and subsequent bioinformatics analysis was used to determine differentially expressed proteins of RAW264.7 cells infected with △MetQ and ZY05719, aimed at elucidating the mechanism of antiphagocytosis and innate immunity of macrophages infected by Streptococcus suis.

2021-09-09 | PXD018091 | Pride

Mutation Mapping of Streptococcus suis serotype 2 strains

2009-08-29 | E-GEOD-17868 | biostudies-arrayexpress

Transcriptome-wide regulation of pre-mRNA splicing and expression by the RNA-binding protein Quaking during monocyte to macrophage differentiation [Microarray]

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2016-01-04 | E-GEOD-74887 | biostudies-arrayexpress

Comparison of gene expression changes in AML cells after SMARCA4, SMARCD2 or DPF2 knock-down

Project description:We explored the role of SMARCA4 and the two Brahma associated factors SMARCD2 and DPF2 in leukaemia. We observed the selective requirement for these factors for leukemic cell expansion, as well as extended survival of mice transplanted with leukaemic cells with reduced expression of these genes. Gene expression profiling revealed largely similar alterations with the down-regulation of each of these three factors, suggesting a concerted function in transformed blood cells. These changes included loss of pluripotency-associated signature but did not correlate with c-MYC down-regulation. Human acute monocytic leukemia cells (THP-1, ACC 16) were lentivirally transduced with pLKO-puro vectors carrying shRNAs against SMARCA4, SMARCD2 or DPF2. As a negative control, THP-1 cells were transduced with pLKO-puro-shScr (Scrambled). All samples were prepared as biological triplicates.

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