Manufacturer’s manuals were

followed for BioPlex (Bio-Rad, Inc) and human IL-8 ELISA assay (BD OptEIATM, BD Bioscience). For Bio-Plex analysis, 2 μl of anti-cytokine conjugated beads were added to each well, followed by diluted culture supernatants. After 30 min incubation, samples were washed three times with Bio-Plex wash buffer, and then 25 μl of detection antibody solution was added and incubated for another 30 min. Streptavidin-phycoerythrin (1X; 50 μl) was added to each well and then washed. For hIL-8 ELISA, duplicate measurements were done for four separate experiments. Samples LY294002 purchase were read at 450 nm on an ELISA reader (Bio-Rad), of which lowest detection limit was 0.8 pg/ml (BD OptEIATM, BD Bioscience). Functional analysis and network generation Online

computational tools of Metacore (Thomson Reuters, Philadelphia, PA) were used to identify annotated networks of interacting genes, pathways and associated biological functions among genes profiled R788 in vitro from the microarray analysis, using more than 700 canonical maps and pathways which are continuously being updated (http://​www.​genego.​com). The networks generated were ranked and built according to G-scores and p values. Statistical analysis All data in each experiment of ELISA and real time PCR are presented as mean ± SEM of three or four different experiments. To check for any difference between the several treatments we did a one-way ANOVA analysis. To determine differences between specific treatments we did a two-tailed unpaired t-test. Acknowledgements This work was supported ifenprodil in part by a grant of the Translational Research Initiative of the Louisiana State University Health Sciences Center and by the Louisiana Cancer Research Consortium (LCRC) and COBRE Grant number 149740220B (to JZ) and Public Health Service Grant RO1 CA101931 (to DJM from the National Institutes of Health). References 1. Blaser MJ: Helicobacter pylori and gastric diseases. BMJ 1998, 316:1507–1510.PubMedCrossRef 2. Day AS, Jones NL, Policova Z, Jennings HA,

Yau EK, Shannon P, et al.: Characterization of virulence factors of mouse-adapted Helicobacter pylori strain SS1 and effects on gastric hydrophobicity. Dig Dis Sci 2001, 46:1943–1951.PubMedCrossRef 3. Backert S, Ziska E, Brinkmann V, Zimny-Arndt U, Fauconnier A, Jungblut PR, et al.: Translocation of the Helicobacter pylori CagA protein in gastric epithelial cells by a type IV secretion apparatus. Cell Microbiol 2000, 2:155–164.PubMedCrossRef 4. Gebert B, Fischer W, Weiss E, Hoffmann R, Haas R: Helicobacter pylori vacuolating cytotoxin inhibits T lymphocyte activation. Science 2003, 301:1099–1102.PubMedCrossRef 5. Mobley HL, Island MD, Hausinger RP: Molecular biology of microbial ureases. Microbiol Rev 1995, 59:451–480.PubMed 6.