GEO DataSets

(Submitter supplied) Ocular infection with Chlamydia trachomatis (trachoma) is the leading cause of blindness that results from infection. Chronic inflammation is believed to drive the scarring process and the progressive blinding disease, however the mechanisms by which this occurs are not completely understood. We hypothesized that Micro RNA (miRNA), as key regulators of genes in inflammatory pathways, are involved in the immunopathogenesis and tissue remodeling observed in trachoma. more...

Organism:

Homo sapiens

Type:

Other

Platforms:

GPL8979 GPL11316

69 Samples

Download data: TXT

(Submitter supplied) Trachoma, a preventable blinding eye disease, is initiated by ocular infection with Chlamydia trachomatis (Ct). MicroRNA (miR) are post-transcriptional regulators of gene expression and play a major role in health and disease. We have investigated the miR profile during C. trachomatis infection of epithelial cells in vitro and in vivo during follicular trachoma with current C. trachomatis infection. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL15520

28 Samples

Download data: TXT

(Submitter supplied) Trachoma is a poorly understood immuno-fibrogenic disease process, initiated by Chlamydia trachomatis (Ct). Differences in conjunctival gene expression profiles between Tanzanians with trachomatous conjunctival scarring (with (TSI) and without (TS) inflammation) and controls (C) were investigated to identify relevant host responses. Tarsal conjunctival swab samples were collected for RNA isolation and Ct PCR. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6884

42 Samples

Download data: TXT

(Submitter supplied) Trachoma is a poorly understood immuno-fibrogenic disease process, initiated by Chlamydia trachomatis (Ct). Differences in conjunctival gene expression profiles between Ethiopians with trachomatous trichiasis (with (TTI) and without (TT) inflammation) and controls (NC) were investigated to identify relevant host responses. Tarsal conjunctival swab samples were collected for RNA isolation and Ct PCR. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6884

42 Samples

Download data: TXT

(Submitter supplied) Conjunctival samples from 60 individuals with and without the clinical signs of active trachoma were analysed on the U133 Plus 2.0 arrays. Global transcriptional changes characteristic of disease and infection phenotypes were identified. Two analysis methods found large numbers of differentially regulated genes and the existence of networks of co-expressed genes. There were signatures characteristic of the host defence response with evidence supporting infiltration of various types of leukocytes and activation of innate responses of epithelial cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

60 Samples

Download data: CEL

(Submitter supplied) Results from 29 samples tested on the Affymetrix HG-focused target array identified transcriptional changes characteristic of ocular disease and ocular Chlamydia trachomatis infection phenotypes. Large numbers of differentially regulated genes were demonstrated. These were characteristic of the host defence response and typical of innate responses at epithelial surfaces and infiltrating leukocytes. These results provide an insight into the complexity of the acute response in trachoma.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL201

29 Samples

Download data: CEL

(Submitter supplied) Chlamydia trachomatis serovariants are responsible for either Trachoma, the leading cause of infectious blindness or sexually transmitted disease, wherein the endocervix is the most frequently infected site in women. Disease caused by Chlamydia typically involves chronic inflammation and scarring. Recent work with a live-attenuated A2497 plasmid deficient vaccine strain (A2497-) demonstrated protection in nonhuman primates against trachoma and a lack of measurable ocular pathology in A2497- infected monkeys. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

66 Samples

Download data: CEL, CHP