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. 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.
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.
Project description:Monocytic leukemia cell line, THP-1 cells are known to respond to CXCL14. To identfy transcriptional regulation of CXCL14 signalling, we analyse gene expression changed with CXCL14 treatment. THP-1 treated with CXCL14 or PBS treated sample were used.
Project description:THP-1 is a human monocytic cell line derived from an acute monocytic leukemia patient. It is efficiently converted into macrophages using cytokine combinations and or by using chemical compound Phorbol 12-myristate 13-acetate (PMA). Together with performing gene expression analysis on HSC’s we also performed gene expression analysis on THP-1 cells in order to check which genes have been expressed/overexpressed during differentiation into macrophages. Cells were given treatment with cytokines combination (GMCSF, MCSF). After 24 hours of incubation, cells were washed and pellet was preserved in RNAlater (Ambion) to be shipped to Genotypic Technologies Pvt. Ltd. (Bangalore) for microarray analysis. RNA was isolated by Qiagen’s RNeasy mini kit and was reverse transcribed into cDNA. Cy3 labeled cRNA was formed by cDNA by T7 promoter based linear amplification using Agilent’s Quick amp labeling kit and quantified in Nanodrop Spectrophotometer and their integrity was checked by Bioanalyser. .