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Gene expression profiling in IBD rat treat with MSC transplantation

ABSTRACT: Investigation of whole genome gene expression level changes in Inflammatory bowel disease rats after MSC transplantation, compared to IBD control rats, and to explore the mechanism of MSC transplantation.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE68653 | GEO | 2015/05/08

SECONDARY ACCESSION(S): PRJNA283308

REPOSITORIES: GEO

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Gene expression profiling in IBD rat treat with MSC transplantation

Project description:Investigation of whole genome gene expression level changes in Inflammatory bowel disease rats after MSC transplantation, compared to IBD control rats, and to explore the mechanism of MSC transplantation. A four chip study using total RNA recovered from two separate IBD rats after MSC transplantation and two separate IBD control rats. Each chip measures the expression level of 26,419 genes from normal rat and IBD rat treated with MSC transplantation.

2015-05-08 | E-GEOD-68653 | biostudies-arrayexpress

Expression data from rat spinal cord injury and mesenchymal stromal cells (MSC) or olfactory ensheathing cells (OEC) transplantation

Project description:We analyzed the changes in the spinal cord transcriptome after a spinal cord contusion injury and MSC or OEC transplantation. The cells were injected immediately or 7 days after the injury. The mRNA of the spinal cord injured segment was extracted and analyzed by microarray at 2 and 7 days after cell grafting. 52 total samples were analyzed in 13 different groups. Each group include 4 samples and each one were analyzed as a biological replica. The intact animals were used as control of injury. The vehicle (VHC) groups were used as control of transplantation procedure. The MSC or OEC graft were injected at the day of injury (acute graft) or seven days after injury (delayed graft). The samples from engrafted animals were obtained at 2 or 7 days after cell transplantation. To determine the effects of MSC or OEC transplantation, the expression value of each engrafted sample were compared with correspondent VHC group.

2013-10-16 | E-GEOD-46988 | biostudies-arrayexpress

Expression data from rat spinal cord injury and mesenchymal stromal cells (MSC) or olfactory ensheathing cells (OEC) transplantation

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Gene Expression profile of brain in SCI rat by MSC intravenous transplantation.

Project description:We had analysed gene expression profile of brain in SCI rat by MSC. Compared with MSC intravenous and vehicle injection at SCI day3. We used Clariom D / Gene Chip® Rat Transcriptome Array (RTA 1.0., Affymetrix, Santa Clara, CA, USA).

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Exosomes from mesenchymal stromal cells reduce murine colonic inflammation via a macrophage-dependent mechanism

Project description:Conventional treatments for inflammatory bowel disease (IBD) have multiple potential side effects. Therefore, alternative treatments are desperately needed. In the present study, we proposed a new therapeutic tool for the treatment of IBD in murine pre-clinical models by using MSC-Exos. We demonstrated that the infused MSC-Exos are immunotolerated by the host, which is convenient for a future clinical application of MSC-Exos in IBD. To understand the molecular basis mediating the anticolitic benefit of MSC-Exos, we performed proteomic analysis using iTRAQ technology to detect the protein expression profiles in MSC-Exos and the corresponding supernatants from their parent cell MSCs. Proteomic analysis revealed that MSC-Exos were enriched in proteins involved in regulating multiple biological processes associated with the anti-colitic benefit of MSC-Exos. Particularly, metallothionein-2 in MSC-Exos was required for the suppression of inflammatory responses in macrophages. Taken together, MSC-Exos are critical regulators of inflammatory responses and may be promising candidates for IBD treatment.

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Project description:Deficiency in the X-linked inhibitor of apoptosis protein (XIAP) is the cause for the X-linked lymphoproliferative syndrome 2 (XLP2). About one third of all patients suffers from severe and therapy refractory inflammatory bowel disease (IBD), but the exact pathogenesis remains undefined. We examined the differences in gene expression of pediatric XLP2 patients with IBD to healthy controls and pediatric IBD patients.

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IBD

Project description:WTCCC1 project Inflammatory Bowel Disease (IBD) samples

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Low mass blood peptides discriminative of IBD severity

Project description:The enriched low mass proteome is unexplored as a source of differentiators for diagnosing and monitoring Inflammatory Bowel Disease (IBD) activity, less invasively than colonoscopy and histopathology. Differences in the enriched low mass plasma proteome (<25kDa) were assessed by label-free quantitative mass-spectrometry. A panel of marker candidates were progressed to validation phase and ‘Tier-2’ FDA-level validated quantitative assay. Proteins important in maintaining gut barrier function and homeostasis at the epithelial interface have been quantitated by Multiple Reaction Monitoring (MRM) in plasma and serum including both inflammatory rheumatoid arthritis controls (RA) and non-inflammatory healthy controls (C), ulcerative colitis (UC) and crohn’s disease (CD) patients. Detection by immunoblot confirmed presence at the protein level in serum. Correlation analysis and receiver operator characteristics were used to report the sensitivity and specificity. Five peptides discriminating IBD activity and severity had very little-to-no correlation to Erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), white cell or platelet counts. Three of these peptides were found to be binding partners to SPP24 protein alongside other known matrix proteins. These Proteins have the potentially improve effective diagnosis and evaluate IBD activity, reducing the need for more invasive techniques.

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