GEO DataSets

(Submitter supplied) Abstract Human type 1 diabetes mellitus (T1DM) arises through autoimmune destruction of pancreatic β cells and is modeled in many respects by the lymphopenic and spontaneously diabetic BioBreeding (BB) DRlyp/lyp rat. Previously, pre-onset expression profiling of whole DRlyp/lyp pancreatic lymph nodes (PLN) revealed innate immune activity, specifically that of mast cells and eosinophils. Furthermore, we observed that pancreatic islets of DRlyp/lyp rats as well as those of diabetes-inducible BB DR+/+ rats potentially recruit innate cells through eotaxin expression. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS2742

Platform:

GPL1355

4 Samples

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Analysis of mast cells isolated from the pancreatic lymph nodes of 60 day old prediabetic BioBiobreeding (BB) DR lyp/lyp animals. The BB DR lyp/lyp strain is a model for type 1 diabetes mellitus (T1DM). Results provide insight into the role of mast cells in the pathogenesis of T1DM.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 2 strain sets

Platform:

GPL1355

Series:

GSE4990

4 Samples

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(Submitter supplied) Human type 1 diabetes (T1D) arises through autoimmunity towards the insulin-producing pancreatic β cells and is modeled by the BioBreeding (BB) rat. Factors associated with islet autoimmunity are dilute and difficult to directly measure in the periphery. Therefore, we previously utilized microarray-based bioassay where human T1D sera were used to induce a disease-specific gene expression signature in unrelated, healthy peripheral blood mononuclear cells (PBMC). more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

53 Samples

Download data: CEL

(Submitter supplied) Like humans, the NOD mouse and other diabetes susceptible rat strains, T1D in BB rats is dependent on the major histocompatibility complex (MHC, insulin dependent diabetes mellitus locus 1, Iddm1) located on chromosome 20. In rats this is the HLA-DQB1 homologue RT1-B, specifically the RT1u haplotype. Our studies employ congenic derivatives of the BB rat, the DRlyp/lyp and DR+/+ strains, which differ only by the 2 Mb lyp (lymphopenia, Iddm2) region on chromosome 4. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

10 Samples

Download data: CEL

(Submitter supplied) The incidence of Type 1 diabetes (T1D), a T-cell mediated autoimmunity that targets the insulin secreting β-cells, has significantly increased, suggesting greater environmental pressure. In studies of T1D families and the BioBreeding rat model, we have identified a peripheral innate inflammatory state that is associated with diabetes susceptibility, consistent with pattern recognition receptor (PRR) ligation, but independent of disease progression. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

10 Samples

Download data: CEL

(Submitter supplied) Type 1 diabetes (T1D) is an autoimmune disease characterized by destruction of the pancreatic β-cells. T1D pathogenesis has a strong genetic basis. However, in recent decades, the prevalence of high-risk HLA haplotypes among new diagnoses has declined, the age of onset has decreased, and T1D incidence has increased. These changes are consistent with increased environmental pressure and coincide with introduction of the Western diet, widespread antibiotic use and reduced breast feeding. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

15 Samples

Download data: CEL

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens; Rattus norvegicus

Type:

Expression profiling by array

Platforms:

GPL570 GPL1355

39 Samples

Download data: CEL

(Submitter supplied) A need exists for biomarkers in T1D that can 1) sensitively and specifically detect disease-related immune activity prior to, and independent of, measurement of auto-antibodies towards islet cell antigens; 2) define immunopathological mechanisms; and 3) monitor changes in the inflammatory state associated with disease progression or response to therapeutic intervention. In an effort to fill this gap, we have applied a novel bioassay to both human and BB rat T1D whereby the complex milieu of inflammatory mediators present in plasma can be indirectly detected through their ability to drive transcription in peripheral blood mononuclear cells (PBMCs) drawn from healthy, unrelated donors. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

33 Samples

Download data: CEL

(Submitter supplied) A need exists for biomarkers in T1D that can 1) sensitively and specifically detect disease-related immune activity prior to, and independent of, measurement of auto-antibodies towards islet cell antigens; 2) define immunopathological mechanisms; and 3) monitor changes in the inflammatory state associated with disease progression or response to therapeutic intervention. In an effort to fill this gap, we have applied a novel bioassay to both human and BB rat T1D whereby the complex milieu of inflammatory mediators present in plasma can be indirectly detected through their ability to drive transcription in peripheral blood mononuclear cells drawn from healthy, unrelated donors. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

6 Samples

Download data: CEL