Tacrolimus and Sirolimus are commonly used to maintain immunosuppression in kidney transplantation. However, their effects on immune cells and allograft molecular profiles have not been elucidated.
Cellular and molecular immune profiles in renal transplant recipients after conversion from tacrolimus to sirolimus.
Specimen part, Treatment
View SamplesmRNA expression in colon cancer tumores
Mice that express human interleukin-8 have increased mobilization of immature myeloid cells, which exacerbates inflammation and accelerates colon carcinogenesis.
Sex, Specimen part
View SamplesIn addition to helper and regulatory potential, CD4+T cells also acquire cytotoxic activity marked by granzyme B (GzmB) expression and the ability to promote rejection of established tumors. Here we examined the molecular and cellular mechanisms underpinning the differentiation of cytotoxic CD4+T cells following immunotherapy. CD4 transfer into lymphodepleted animals or regulatory T cell (Treg)depletion promoted GzmB expression by tumor-infiltrating CD4+which was prevented by IL-2 neutralization. Transcriptional analysis revealed a polyfunctional helper and cytotoxic phenotype characterized bythe expression of the transcription factors T-bet and Blimp-1. Whilst T-bet ablation restrictedIFN-gproduction, lossof Blimp-1preventedGzmB expressionin response to IL-2, suggesting these are two independent programs required forpolyfunctionality of tumor-reactive CD4+T cells. The data underscores the role of Treg, IL-2 and Blimp-1 controlling the differentiation of cytotoxic T cells and offers a pathway to enhancement of anti-tumor activity through their manipulation.
Regulatory T Cells Restrain Interleukin-2- and Blimp-1-Dependent Acquisition of Cytotoxic Function by CD4<sup>+</sup> T Cells.
Specimen part
View SamplesWe characterized the Drosophila third instar eye disc using single cell RNA-seq and labelled the multiple cell populations. The results identified a novel transcriptional switch in photoreceptors relating to axonal projections. We then performed single cell RNA-seq on rbf (Rb) mutants and compared the results to the WT cell populations. This identified a specific cell population only in the Rb mutant tissue. This cell population has an upregulation of HIF1A and glycolitic genes such as Aldolase and Lactate dehydrogenase. As a result these cells produce lactate and undergo apoptosis. We also show this process to be directly regulated by E2F/Dp. The paper uncovers a novel metabolic aspect of Rb/E2F dependent apoptosis. Overall design: examining WT and Rb mutants third instar eye disc using single cell RNA-seq
Single cell RNA-sequencing identifies a metabolic aspect of apoptosis in Rbf mutant.
Specimen part, Subject
View SamplesAnalysis of transcriptional differences between control and RA-treated cells during cardiac differentiation. The hypothesis tested in these samples is that addition of RA during differentiation towards atrial-like cardiomyocytes while control cells treated with DMSO result in ventricular-like cardiomyocytes. Overall design: NKX2.5 (eGFP/w)-hESCs were differentiated to cardiomyocytes with spin EB protocol, with the addition of RA or DMSO. Cells were sorted at day-31 based on GFP resulting in CTplus, CTminus, RAplus or RAminus goups. RNA was isolated from each of these fractions for sequencing.
KeyGenes, a Tool to Probe Tissue Differentiation Using a Human Fetal Transcriptional Atlas.
No sample metadata fields
View SamplesInrauterine growth restriction was induced by chronic hyper insulinemia in pregnant rats and differential gene expression was studied using affymetrix rat genome RAE230A.Data was analysed using SAM.
Adult hypertension in intrauterine growth-restricted offspring of hyperinsulinemic rats: evidence of subtle renal damage.
No sample metadata fields
View SamplesA triclosan-ciprofloxacin cross-resistant mutant strain of Staphylococcus aureus displays an alteration in the expression of several cell membrane structural and functional genes.
A triclosan-ciprofloxacin cross-resistant mutant strain of Staphylococcus aureus displays an alteration in the expression of several cell membrane structural and functional genes.
No sample metadata fields
View SamplesAdar1 is an essential gene for mouse embryonic development. Adar1 null mouse embryos dies around E11.5 because of massive apoptosis. Overall design: Small RNA: 4 samples examined: wild type E11.0, ADAR1 null E11.0, wild type E11.5, ADAR1 null E11.5, mRNA-seq: wild type E11.5, ADAR1 null E11.5.
ADAR1 forms a complex with Dicer to promote microRNA processing and RNA-induced gene silencing.
Specimen part, Cell line, Subject
View SamplesSmall RNA expression was analysed in total RNA of HeLa cells treated with siRNA toward Luciferase (negative cotrol) or ADAR1. Overall design: Small RNA: 2 samples examined: HeLa cell with siLuc (negative cotrol), with siADAR1
ADAR1 forms a complex with Dicer to promote microRNA processing and RNA-induced gene silencing.
Cell line, Subject
View SamplesThe etiology of trauma-hemorrhage shock-induced acute lung injury has been difficult to elucidate due, at least in part, to the inability of in vivo studies to separate the non-injurious pulmonary effects of trauma-hemorrhage from the tissue injurious ones. To circumvent this in vivo limitation, we utilized a model of trauma-hemorrhagic shock (T/HS) in which T/HS-lung injury was abrogated by dividing the mesenteric lymph duct. In this way, it was possible to separate the pulmonary injurious response from the non-injurious systemic response to T/HS by comparing the pulmonary molecular response of rats subjected to T/HS which did and did not develop lung injury as well as to non-shocked rats. Utilizing high-density oligonucleotide arrays and treatment group comparisons of whole lung tissue collected at 3 hours after the end of the shock or sham-shock period, 139 of the 8,799 assessed genes were differentially expressed.
Molecular signatures of trauma-hemorrhagic shock-induced lung injury: hemorrhage- and injury-associated genes.
No sample metadata fields
View Samples