Project description:Here we identify a novel members of a gamma delta T cell "wound signature" that are upregulated following wounding and mediate the gamma delta T cell wound response. RNA-seq analysis of wounded and non-wounded epidermis was initially used to identify two new wound signature proteins (ICAM1 and HSPA8)
Project description:Chemical warfare nerve agents (CWNA) are potent cholinesterase inhibitors that may also have non-cholinesterase effects. Several in vivo studies have shown that exposure to CWNA compounds induces damage in the brain and heart. Underlying mechanisms of this damage are a critical area of research for the development of medical countermeasures. This study utilized microRNA (miRNA) analysis to evaluate potential direct cellular effects of the nerve agent GD/soman (O-Pinacolyl methylphosphonofluoridate) on human-induced pluripotent stem cell (iPSC)-derived neurons iPSC-derived neurons were treated with GD at concentrations of 0µM (saline control), 0.1µM or 100µM for either 1 hour or 6 hours. Total RNA was then isolated and processed for miRNA microarray analysis using Affymetrix miRNA 2.0 GeneChips
Project description:IL-17-producing gd T (Tgd17) cells are early mediators of immunity and autoimmunity that undergo effector programming in the thymus. While Vg subset-restricted regulators of Tgd17 specialization are known, a universal type 17 commitment factor for all gd T cells remains undefined. In this study, we identify the transcription factor c-Maf as an essential and uniform regulator of Tgd17 differentiation and maintenance. The absolute lineage block caused by Maf deficiency reveals a critical effector acquisition checkpoint at the immature CD24+ CD45RBlo gd thymocyte stage. Here, c-Maf enforces Tgd17 identity by promoting chromatin accessibility and activating expression of lineage-defining RORgt and key type 17 program genes, while coordinately antagonizing the negative regulator TCF1, which promotes the alternative IFNg+ Tgd1 fate. During specialization, c-Maf expression is tuned by gdTCR signal strength, implicating c-Maf as a rheostat controlling effector gd T cell generation and connecting gdTCR signals to a core node in the Tgd17 network.
Project description:IL-17-producing gd T (Tgd17) cells are early mediators of immunity and autoimmunity that undergo effector programming in the thymus. While Vg subset-restricted regulators of Tgd17 specialization are known, a universal type 17 commitment factor for all gd T cells remains undefined. In this study, we identify the transcription factor c-Maf as an essential and uniform regulator of Tgd17 differentiation and maintenance. The absolute lineage block caused by Maf deficiency reveals a critical effector acquisition checkpoint at the immature CD24+ CD45RBlo gd thymocyte stage. Here, c-Maf enforces Tgd17 identity by promoting chromatin accessibility and activating expression of lineage-defining RORgt and key type 17 program genes, while coordinately antagonizing the negative regulator TCF1, which promotes the alternative IFNg+ Tgd1 fate. During specialization, c-Maf expression is tuned by gdTCR signal strength, implicating c-Maf as a rheostat controlling effector gd T cell generation and connecting gdTCR signals to a core node in the Tgd17 network.
Project description:Chemical warfare nerve agents (CWNA) are potent cholinesterase inhibitors that may also have non-cholinesterase effects. Several in vivo studies have shown that exposure to CWNA compounds induces damage in the brain and heart. Underlying mechanisms of this damage are a critical area of research for the development of medical countermeasures. This study utilized microRNA (miRNA) analysis to evaluate potential direct cellular effects of the nerve agent GD/soman (O-Pinacolyl methylphosphonofluoridate) on human-induced pluripotent stem cell (iPSC)-derived cardiomyocytes iPSC-derived cardiomyocytes were treated with GD at concentrations of 0µM (saline control), 0.1µM or 100µM for either 1 hour or 6 hours. Total RNA was then isolated and processed for miRNA microarray analysis using Affymetrix miRNA 2.0 GeneChips
Project description:gd T cells recognize unprocessed or non-peptide antigens, respond rapidly to infection, and localize to mucosal surfaces. We have hypothesized that the innate functions of gd T cells may be more similar to those of cells of the myeloid lineage than to other T cells. To begin to test this assumption, we have analyzed the direct response of cultured human and peripheral blood bovine gd T cells to pathogen associated molecular patterns (PAMPs) in the absence of APCs using microarray, real time RT-PCR, proteome array, and chemotaxis assays. Our results indicate that purified gd T cells respond directly to PAMPs by increasing expression of chemokine and activation related genes. The response was distinct from that to known gd T cell antigens and different from the response of myeloid cells to PAMPs. In addition, we have analyzed the expression of a variety of PAMP receptors in gd T cells. Freshly purified bovine gd T cells responded more robustly to PAMPs than did cultured human cells and expressed measurable mRNA encoding a variety of PAMP receptors. Our results suggest that rapid response to PAMPs through the expression of PAMP receptors may be another innate role of gd T cells. Keywords: parallel sample
Project description:This study utilized comparative global gene expression microarray analysis of GD-affected and clinically healthy chickens from a recent GD outbreak to glean insights into the molecular and cellular changes associated with this disease process. Two-condition experiment, GD-affected vs. Healthy chickens. Biological replicates: 2 control replicates, 2 GD-infected replicates with dye-switching.
Project description:we report a novel nanomedicine (Gd@C82(OH)22 ) effectively inhibit human breast tumor growth by antiangiogenesis in vivo. To further identify which angiogenic factor(s) were affected on mRNA level, the "RT² Profiler™ PCR Array Mouse Angiogenesis (APMM-024, SuperArray Bioscience Corporation)" was used. Keywords: nanomedicine, Gd@C82(OH)22, angiogenesis, MCF-7, breast cancer
Project description:Chemical warfare nerve agents (CWNA) are potent cholinesterase inhibitors that may also have non-cholinesterase effects. Several in vivo studies have shown that exposure to CWNA compounds induces damage in the brain and heart. Underlying mechanisms of this damage are a critical area of research for the development of medical countermeasures. This study utilized microRNA (miRNA) analysis to evaluate potential direct cellular effects of the nerve agent GD/soman (O-Pinacolyl methylphosphonofluoridate) on human-induced pluripotent stem cell (iPSC)-derived neurons
Project description:Vg9Vd2 gd T cells, nonVg9Vd2 gd T cells and ab T cells were sorted from human fetal peripheral blood (<30 weeks of gestation) and RNA was isolated from 10,000-100,000 sorted T cells. RNA was amplified using the Ovation PicoSL WTA System (NuGen), labeled with biotin using the Encore BiotinIL Module (NuGen) and applied on Illumina HT12 bead arrays.