Project description:Disruption of TCR /MHC class II interactions leads rapidly to alterations of the common CD4 Treg transcriptional signature Self-deprived, non-functional Tregs were compare to fully functional Tregs by microarrays. Total T cells from the periphery of WT mice were adoptively transferred into CD3ε-/- recipient mice lacking or not MHC class II molecule expression (MHC II- or MHC II+ recipient mice, respectively). Five days later, peripheral Tregs transferred in MHC II - competent (CD4CD25B6) or - deficient (CD4CD25IIko) recipient were purified for RNA extraction and hybridization on Affymetrix microarrays.
Project description:This SuperSeries is composed of the following subset Series: GSE26714: Expression data from Tregs adoptively transferred in MHC II competent or deficient recipients GSE27151: Expression data from Tregs purified from WT-CD3KO or IIKO-CD3KO chimeras Refer to individual Series
Project description:Disruption of TCR /MHC class II interactions leads rapidly to alterations of the common CD4 Treg transcriptional signature Self-deprived, non-functional Tregs were compare to fully functional Tregs by microarrays.
Project description:Disruption of TCR /MHC class II interactions leads rapidly to alterations of the common CD4 Treg transcriptional signature Self-deprived, non-functional Tregs were compare to fully functional Tregs by microarrays.
Project description:Tumors express a wide variety of both mutated and non-mutated antigens. Whether these tumor antigens are broadly recognized as âselfâ or âforeignâ by the immune system is currently unclear. Using an autochthonous prostate cancer model in which hemagglutinin (HA) is specifically expressed in the tumor (ProHA x TRAMP mice), as well as an analogous model wherein HA is expressed in normal tissues as a model self-antigen (C3HAHigh), we examined the transcriptional profile of CD4 T cells undergoing antigen-specific division. Consistent with our previous data, transfer of antigen-specific CD4 T cells into C3HAHigh resulted in a functionally inactivated CD4 T cell profile. Conversely, adoptive transfer of an identical CD4 T cell population into ProHA x TRAMP resulted in the induction of a regulatory phenotype (Treg) both at the transcriptional and functional level. Interestingly, this Treg skewing was a property of even early-stage tumors, suggesting Treg induction as an important tolerance mechanism during tumor development. The goal of this microarray is to detail the transcriptional profile differences between CD4 T cells that recognize their cognate antigen in the context of tumor (ProHA x TRAMP model) or self-antigen recognition (C3HA) or viral-antigen recognition (VaccHA) models or unprimed naïve state (Nontransgenic). The comparison contains both upregulated and downregulated transcripts. Experiment Overall Design: TCR transgenic CD4 T cells specific for hemagglutinin (HA) were adoptively transferred into tumor-antigen recognition model (ProHA x TRAMP), Self-antigen recognition model (C3HA), viral-antigen recognition model (VaccHA), and naïve control (Nontrangenic). Divided (CFSE diluted) CD4 T cells were sorted by FACS, RNA was extracted, and biological replicated were hybridized to an Affymetrix Mouse 430 Plus 2 expression array, followed by interrogation with an Affymetrix GeneChip Scanner 3000. RMA normalization was employed to identify differentially expressed transcripts.
Project description:We isolated CD4+ T cells from draining lymph nodes 7 days post EAE from DA rats treated with vitamin D supplemented, vitamin D deprived or regular diet
Project description:Wild-type (C57Bl6) mice underwent monocular enucleation at P100 and were sacrificed 4 days later at P104. Bilateral (non-deprived and deprived) visual cortex was dissected from 1-mm thick coronal sections, and total RNA was extracted from the tissue lysate using Trizol (Gibco-BRL). Keywords: repeat
Project description:Wild-type (C57Bl6) mice underwent monocular enucleation at P42 and were sacrificed 4 days later at P46. Bilateral (non-deprived and deprived) visual cortex was dissected from 1-mm thick coronal sections, and total RNA was extracted from the tissue lysate using Trizol (Gibco-BRL). Keywords: repeat
Project description:Wild-type (C57Bl6) mice underwent monocular enucleation at P20 and were sacrificed 4 days later at P24. Bilateral (non-deprived and deprived) visual cortex was dissected from 1-mm thick coronal sections, and total RNA was extracted from the tissue lysate using Trizol (Gibco-BRL). Keywords: repeat