GEO DataSets

Analysis of pharyngeal epithelial cells exposed to various encapsulated strains of Streptococcus pneumoniae. Nasopharynx colonization by S. pneumoniae is mediated by adherence to the respiratory epithelium. Results provide insight into the capsule-dependent host response to pneumococcal adherence.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 5 agent, 3 cell type, 3 dose, 2 infection sets

Platform:

GPL570

Series:

GSE8527

32 Samples

Download data: CEL, EXP

(Submitter supplied) Infection of the human host by Streptococcus pneumoniae begins with colonization of the nasopharynx, which is mediated by adherence of bacteria to respiratory epithelium. Several studies have indicated an important role for the pneumococcal capsule in this process. Here, we used microarrays to characterize the in vitro transcriptional response of human nasopharyngeal epithelial Detroit 562 cells to adherence of serotype 2-encapsulated strain D39, serotype 19F-encapsulated strain G54, serotype 4-encapsulated strain TIGR4, and their nonencapsulated derivatives (Δcps). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS3041

Platform:

GPL570

32 Samples

Download data: CEL, EXP

(Submitter supplied) This microarray experiment is part of a study addressing the importance of glutamine metabolism in Streptococcus pneumoniae for the virulence of this bacterium. To be able to gain more insight into the phenotype of a double mutant of glnA (TIGR 4 locus tag SP0502, encoding glutamine synthetase) and glnP (SP1241, encoding a permease component of a glutmine uptake ABC transporter), the transcriptome of this mutant, the glnPA double mutant, was determined in strain S. more...

Organism:

Streptococcus pneumoniae

Type:

Expression profiling by array

Platform:

GPL6268

4 Samples

Download data: TXT

(Submitter supplied) To understand the host transcriptional response to S. enterica serovar Choleraesuis (S. Choleraesuis), the first generation Affymetrix porcine GeneChip® was used to identify differentially expressed genes in the mesenteric lymph nodes responding to infection at acute (8 hours (h), 24h, 48h post-inoculation (pi)) and chronic stages (21 days (d) pi) The objectives of this study were to identify and examine the stereotypical gene expression response within the host mesenteric lymph nodes to S. more...

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL3533

15 Samples

Download data: CEL, EXP

(Submitter supplied) The alkylating agent N-methyl-N’-nitro-N-nitrosoguanidine (MNNG) induces cellular DNA damages and other comprehensive alterations that lead to chromosomal aberrations, mutations, tumor initiations, and cell death. However, the molecular mechanism of MNNG-induced cellular stress remains unclear.We have genome-wide analyzed early transcriptional responses of human FL amnion epithelial cells after exposure to three relatively low doses of MNNG (0.2, 1.0, and 10.0µM),and differential gene expression profiles were obtained 4 h after exposure using oligonucleotide microarrays followed by validation with quantitative real-time RT-PCR. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL96 GPL97

16 Samples

Download data: CEL, EXP

(Submitter supplied) Methotrexate (MTX) has been widely used for the treatment of a variety of tumors as well as for inflammatory diseases and rheumatoid arthritis (RA). MTX-induced toxicity has been a serious unpredictable side effect of the treatment and an important clinical problem. Possible causes include allergic, cytotoxic or immunologic reactions to this agent. We examined the consequences of the mechanism of MTX-induced pulmonary toxicity gene expression in BEAS-2B cells, huma bronchial cell line, by microarray. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL1708

3 Samples

Download data: GPR

(Submitter supplied) d-serine is naturally present throughout the human body. It is also used as add-on therapy for treatment-refractory schizophrenia. d-Serine interacts with the strychnine-insensitive glycine binding site of NMDA receptor, and this interaction could lead to potentially toxic activity (i.e., excitotoxicity) in brain tissue. The transcriptomic changes that occur in the brain after d-serine exposure have not been fully explored. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS3643

Platform:

GPL1355

24 Samples

Download data: CEL

Analysis of forebrains of animals treated with up to 500 mg/kg D-serine for 96 hours. D-serine is involved in many physiological processes through its interaction with the glycine binding site of the NMDA receptor. Results provide insight into the impact of D-serine exposure on neuronal functions.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 2 agent, 6 dose sets

Platform:

GPL1355

Series:

GSE10748

24 Samples

Download data: CEL

(Submitter supplied) Characterization of the zebrafish embryonic host response to systemic bacterial infection with Salmonella typhimurium wild type strain (SL1027) and its isogenic LPS O-antigen mutant Ra (SF1592) by means of a time-resolved global expression analysis.

Organism:

Danio rerio

Type:

Expression profiling by array

Platform:

GPL7735

36 Samples

Download data: XML

(Submitter supplied) Messenger RNA of C trachomatis infected monocytes of the three healthy donors was compared with the corresponding mock-infected samples. For mock infection, SPG buffer was used instead of the C trachomatis suspension, all other procedures were performed identically. Cells were resuspended in solution D and total RNA was extracted by application of phenol:chloroform 5:1 (pH 4.5, Ambion, Austin, TX) followed by precipitation in isopropanol at -80°C for 1 hr and incubation with RQ1 DNase (Promega, Madison, WI) at 37 °C for 1 hr. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL127

6 Samples

Download data

(Submitter supplied) Immune cell-specific expression is one indication of the importance of a gene's role in the immune response. In order to identify such patterns, we set out to broadly profile gene expression in a variety of immune cells.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL96 GPL97

228 Samples

Download data: CEL

(Submitter supplied) We used a combination of adherence assays, mutagenesis and functional genomics to identify novel factors involved in adherence. This work identifies a list of novel potential pneumococcal adherence determinants.

Organism:

Streptococcus pneumoniae TIGR4

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16764

1 Sample

Download data: TXT

(Submitter supplied) Epithelial cells were in contact either with live bacteria (S. aureus) or with bacterial supernatant during 3 hours. Three dependant experiment for each condition were performed. RNA from epithelial cells were extracted. Each condition was hybridized on 6 slides (3 slides with their corresponding swap) Keywords: parallel sample

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL1521

12 Samples

Download data

(Submitter supplied) Epithelial cells were in contact with bacteria supernatant during different times of incubation. time course supernatant 10 % MM39 Keywords: time-course

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL1417

5 Samples

Download data

(Submitter supplied) Papillomatous digital dermatitis (PDD) is a polymicrobial infection in soft tissue adjacent to the hoof and is the leading cause of lameness in dairy cattle. Treponema phagedenis-like (TPL) spirochetes are a constant feature of PDD lesions and are localized deep in infected tissue. Host-cell response mechanisms to TPL bacteria are poorly understood. To assess how bovine macrophages respond to cellular constituents of TPL spirochetes, changes in transcription were analyzed using serial analysis of gene expression (SAGE) and real time RT-PCR. more...

Organism:

Bos taurus

Type:

Expression profiling by SAGE

Platform:

GPL223

2 Samples

Download data

(Submitter supplied) BACKGROUND: Streptococcus pneumoniae, the pneumococcus, is the main etiological agent of pneumonia. Pneumococcal infection is initiated by bacterial adherence to lung epithelial cells. The exact transcriptional changes occurring in both host and microbe during infection are unknown. Here, we developed a time-resolved infection model of human lung alveolar epithelial cells by S. pneumoniae and assess the resulting transcriptome changes in both organisms simultaneously by using dual RNA-seq. more...

Organism:

Streptococcus pneumoniae D39; Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21685

18 Samples

Download data: XLSX

(Submitter supplied) PcsB is a protein of unknown function that plays a critical role in cell division in Streptococcus pneumoniae and other ovococcus species of Streptococcus. We constructed isogenic sets of mutants expressing different amounts of PcsB in laboratory strain R6 and virulent serotype 2 strain D39 to evaluate its cellular roles. Insertion mutagenesis in parent and pcsB+ merodiploid strains indicated that pcsB is essential in serotype 2 S. more...

Organism:

Streptococcus pneumoniae

Type:

Expression profiling by array

Platform:

GPL536

4 Samples

Download data: GPR

(Submitter supplied) We developed spotted oligonucleotide arrays of the S. pyogenes SF370 (an M1 serotype) genome and compared the transcriptomes of streptococci that adhere to Detroit 562 human pharyngeal cells to non-adherent (“associated”) streptococci within the same experiment. We replicated experiments independently and used dye-swaps to incorporate biological and technical variation, biological replicate experiments. more...

Organism:

Streptococcus pyogenes

Type:

Expression profiling by array

Platform:

GPL5122

8 Samples

Download data: TXT

(Submitter supplied) Relatively little is understood about the dynamics of global host–pathogen transcriptome changes that occur during bacterial infection of mucosal surfaces. To test the hypothesis that group A Streptococcus (GAS) infection of the oropharynx provokes a host transcriptome response, we performed genome-wide transcriptome analysis using a nonhuman primate model of experimental pharyngitis. We also identified host and pathogen biological processes and individual host and pathogen gene pairs with correlated patterns of expression, suggesting interaction. more...

Organism:

Homo sapiens; Macaca fascicularis

Type:

Expression profiling by array

Platform:

GPL96

360 Samples

Download data: CEL, CHP

(Submitter supplied) Identification of the genetic events that contribute to host-pathogen interactions is important for understanding the natural history of infectious diseases and developing therapeutics. Transcriptome studies conducted on pathogens have been central to this goal in recent years. However, most of these investigations have focused on specific end points or disease phases, rather than analysis of the entire time course of infection. more...

Organism:

Coxiella burnetii; Streptococcus pyogenes; Borreliella burgdorferi; Chlamydia trachomatis; Staphylococcus aureus; Yersinia pestis; Macaca fascicularis

Type:

Expression profiling by array

Platform:

GPL2129

259 Samples

Download data: CEL, EXP, TXT