Project description:We studied the role of the histone methyltransferase DOT1L in B cell development and differentiation. H3K79me2 ChIP-sequencing data was generated from sorted B cells. This was compared to RNA-sequencing data from WT and Dot1L KO mice in order to study the link between H3K79me2 and transcription.
Project description:Gene expression changes when naïve T-cells are stimulated with antigen. We have stimulated these cells with surrogate antigens (aCD3-aCD28 coated beads) for 48 hours, and then did microarray experiment to identify differentially exprssed genes in the two conditions CD4 naïve T-cells from C57/Bl6 mouse were stimulated (activated) with aCD3-aCD28 coated beads for 48 hours and used for microarray experiment
Project description:We studied the role of the histone methyltransferase DOT1L in T cell development and differentiation. H3K79me2 and H3K4me3 ChIP-sequencing data was generated from sorted CD8 single positive thymocytes, naïve CD8 splenocytes and memory CD8 splenocytes. This was compared to RNA-sequencing data from WT and Dot1L KO mice in order to study the link between H3K79me2 and transcription.
Project description:Naïve vs. 24 hr plate-bound anti-CD3 and soluble anti-CD28 activated CD8+ T cells were pulsed with [U-13C]glucose. Intracellular glucose-derived glutamate levels were quantified using MS.
Project description:T cells are endowed with the capacity to sense their environment including other T cells 48 around them. They do so to set their numbers and activation thresholds. This form of regulation has been well-studied within a given T cell population – i.e., within the naïve or memory pool; however, less is known about the cross-talk between T cell subsets. Here, we tested whether memory T cells interact with and influence surrounding naïve T cells. We report that human naïve CD8 T cells (TN) undergo phenotypic and transcriptional changes in the presence of autologous activated-memory CD8 T cells (TMem). Following in vitro co-culture with activated central memory cells (TCM), ~3% of the TN acquired activation/memory canonical markers (CD45RO and CD95) in an MHC-I dependent-fashion. Using scRNA-seq, we also observed that ~3% of the TN acquired an activated/memory signature, while ~84% developed a unique activated transcriptional profile hybrid between naïve and activated memory. Pseudotime trajectory analysis provided further evidence that TN with an activated/memory or hybrid phenotype were derived from TN. Our data reveal a non-cytotoxic function of TMem with potential to activate autologous TN into the activated/memory pool. These findings may have implications for host-protection and autoimmunity that arises after vaccination, infection or transplantation
Project description:We studied the role of the histone methyltransferase DOT1L in B cell development and differentiation. Here we generated RNA-seq data naive B cells from (WT) MB1+/-;Dot1L+/+ and Dot1L KO (MB1+/-;Dot1Lfl/fl) mice. This data was to define tissue specific expression signatures and it was compared with H3K79me2 ChIP-seq data from the same subsets.
Project description:We have analyzed the effects of IL-21 signaling on T cell activation, IL-22 production and gut inflammation In this dataset we include the results of treating T cells with IL-21. Naïve CD4+ T cells (C57BL/6) were isolated, cultured in vitro +/- IL-21 and RNA was prepared
Project description:H3K79me2 ChIP-seq in mouse proximal intestinal Lgr5(hi) stem cells and villus cells Examination of H3K79me2 modifications between Lgr5(hi) stem cells and differentiated villus cells