Project description:Infection with acute and chronic strains of LCMV (Armstrong (ARM) and Clone 13 (C13), respectively) leads to massive proliferation of monocytic cells contemporaneously with peak of the anti-viral CD8+ T cell response. These cells return to naïve levels following ARM infection. However, during C13 infection these cells are sustained at high levels and gain a T cell suppressive function at day 14 post infection. The mechanisms by which these cells are induced to proliferate and impair T cell function during chronic LCMV infection are largely unknown. To address this, we analyzed gene expression profiles using microarray analysis of purified splenic monocytic cells (CD11b+ Ly6Chi Gr-1low) from naïve mice, or day 14 LCMV ARM or LCMV C13 infected mice.
Project description:We performed ribosome profiling in HEK293T cells with treatment with either C13-benzamidyl cycloheximide (hereafter "benzamide") or cycloheximide.
Project description:Exploring the expression profile of ovarian clear cell carcinoma cancer cell subpopulations- derived tumors grown within a murine and a human cellular tissues. RNA samples were obtained from laser micro-dissected from two cancer cell subpopulations (CCSPs C12 and C13)- derived tumors that developed within a murine (intratumoral) and a human (intra-teratoma) and from in vitro grown cells; a total of 9 RNA samples of CCSP's C12 and 9 RNA samples of CCSP's C13 .
Project description:To investigate the possible impact of MOK in microglial immune responses, we tested the effect of MOK-inhibition with the chemical compound C13, in LPS-stimulated microglial cells.
Project description:Rat OPCs were incubated in the presence of LPC 18:1 or LPC 18:0 and C13-His. Cultures controls included no treatment and a positive control for the differentiation of OPCs. LPC 18:1 was administered at 10 uM while C13-His was administered at 10 uM. Samples were process for mass spectrometry to identify the incorporation of C13-His in newly synthesized proteins.
Project description:ADAMs are transmembrane metalloproteases that control cell behavior by cleaving both cell adhesion and signaling molecules. The cytoplasmic domain of ADAMs can regulate the proteolytic activity by controlling the subcellular localization and/or the activation of the protease domain. Here we show that the cytoplasmic domain of ADAM13 is cleaved and translocates into the nucleus. Preventing this translocation renders the protein incapable of promoting cranial neural crest (CNC) cell migration in vivo, without affecting its proteolytic activity. In addition, the cytoplasmic domain of ADAM13 regulates the expression of multiple genes in the CNC. This study shows that the cytoplasmic domain of ADAM metalloproteases can perform essential functions in the nucleus of cells and may contribute substantially to the overall function of the protein. Total RNA from cranial neural crest explants dissected from Xenopus laevis embryos at stage 15 to 17. Embryos were injected with either control morpholino (CMO), morpholino to ADAM13 (MO13) or MO13 and a fusion between GFP- and the cytoplasmic domain of ADAM13 (GFP-C13). Triplicate microarray correspond to independent experiments labeled DA4, DA5 and DA2. For each sample 1 is CMO, sample 2 is MO13 and sample 3 is MO13+C13. Embryos were injected with 10 ng of morpholino and 0.5 ng of GFP-C13 mRNA. Supplementary files: [1] matrix2_sig-genes.txt CNC array: Genes significantly affected by the loss of ADAM13 p<0.01. Normalized probe set generated by GC-RMA. [2] matrix3_sig-genes.txt CNC array: Genes significantly affected by the loss of ADAM13 and the addition of GFP-C13 p<0.01. Normalized probe set generated by GC-RMA.
Project description:To investigate the possible impact of MOK-inhibition in early transcriptional responses induced by TDP-43 aggregates, we tested the effect of AG2P145D/C13-pretreatment of SIM-A9 cells and subsequent exposure to TDP-43 (or sham) aggregates.
Project description:EAE mice were injected with LPC 18:1 and Isobaric C13-His at the optic nerve when they exhibited a clinical score of 2. Visual function was assessed via pattern electroretinogram and optic nerves were harvested 12 days post optic nerve injection. Optic nerves were processed for mass spectrometry to identify the integration of C13-His in newly synthesized proteins.
