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Transcriptomic data from lymphocytic choriomeningitis virus-infected and mock-infected A549 cells

ABSTRACT: We reported the transcriptomic analysis on A549 cells infected with lymphocytic choriomeningitis virus (LCMV).

ORGANISM(S): Homo sapiens

PROVIDER: GSE173072 | GEO | 2021/04/23

REPOSITORIES: GEO

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Transcriptomic data from lymphocytic choriomeningitis virus-infected and mock-infected A549 cells

Project description:Transcriptomic data from lymphocytic choriomeningitis virus-infected and mock-infected A549 cells

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Proteins modulated during persistent lymphocytic choriomeningitis virus infection

Project description:The experimental data indicate that during a persistent infection, lymphocytic choriomeningitis virus (LCMV) may both directly or indirectly modulate the regulatory cellular processes and alter the cellular functions that are not critical for the survival, but are needed for the homeostasis in the organism. Two-dimensional differential in-gel electrophoresis (2D-DIGE) and MALDI-TOF MS/MS analyses were used to determine the cellular proteome response of HeLa cell line to persistent LCMV infection. Quantitative analysis revealed 24 differentially abundant proteins, half of which were up-regulated and the rest down-regulated. Functional categorization showed that LCMV-responsive proteins were mainly involved in metabolism, stress and defense responses. Among identified proteins, significant changes were found for peroxiredoxins, family of antioxidant enzymes. Decreased amount of these antioxidant proteins was accompanied with the elevation of ROS content in infected cells.

2019-11-15 | PXD005205 | Pride

Antibody repertoire sequencing of blood and bone marrow plasma cell compartments following lymphocytic choriomeningitis virus infection

Project description:Antibody repertoire sequencing of blood and bone marrow plasma cell compartments following lymphocytic choriomeningitis virus infection. Heavy chain repertoires of 5 uninfected mice, 5 acutely infected mice and 5 chronically infected mice were longitudinally sequenced over 80 days. All samples are named according to the following scheme: dpi#_cohort$_R&.fastq.gz . dpi = days post infection = for all samples following the start of infection. Those samples starting with dm10 correspond to blood samples taken before the introduction of any virus. # = time point post virus infection cohort=acute (LCMV), chronic (LCMV), or naive (uninfected) animals $= mouse number, 1-5 R&=paired read, either R1 or R2 Those samples with \"bmpc\" in title correspond to sorted plasma cells (CD138hi, CD19lo) from bone marrow Example: dpi70_chronic3_R2.fastq.gz == blood repertoire 70 days post chronic LCMV infection in chronically-infected mouse#3

2020-01-16 | E-MTAB-8585 | biostudies-arrayexpress

Novel lymphocytic choriomeningitis virus strain sustains abundant exhausted progenitor CD8 T cells without systemic viremia

Project description:Lymphocytic choriomeningitis virus (LCMV) is the prototypic arenavirus and a natural mouse pathogen. LCMV Armstrong, an acutely resolved strain, and LCMV Clone 13, a mutant that establishes chronic infection, have provided contrasting infection models that continue to inform the fundamental biology of T cell differentiation, regulation of exhaustion, and response to checkpoint blockade. Here, we report the isolation and characterization of LCMV Minnesota (LCMV-MN), which was naturally transmitted to laboratory mice upon cohousing with pet shop mice and shares 80-95% amino acid homology with previously characterized LCMV strains. Infection of laboratory mice with purified LCMV-MN resulted in viral persistence that was intermediate between LCMV Armstrong and Clone 13, with widely disseminated viral replication and viremia that was controlled within 15-30 days, unless CD4 T cells were depleted prior to infection. LCMV-MN responding CD8+ T cells biased differentiation towards the recently described PD1+ CXCR5+ Tim-3lo stem-like CD8+ T cell population (also referred to as T exhausted progenitors, Tpex) that effectuates responses to PD-1 blockade checkpoint inhibition, a therapy that rejuvenates responses against chronic infections and cancer. This subset resembled previously characterized PD1+ TCF1+ stem-like CD8+ T cells by transcriptional, phenotypic, and functional assays, yet was atypically abundant. LCMV-MN may provide a tool to better understand the breadth of immune responses in different settings of chronic antigen stimulation as well as the ontogeny of T exhausted progenitors and the regulation of responsiveness to PD-1 blockade.

2022-08-22 | GSE207983 | GEO

Development of live-attenuated lymphocytic choriomeningitis virus vectors for potent alarmin-driven CD8+ T cell induction in tumor immunotherapy

Project description:Effective cancer immunotherapy requires potent tumor antigen-specific effector CD8+ T cell (CTLeff) responses, culminating in an inflammatory activation of the tumor microenvironment. We describe the artificial reengineering of the lymphocytic choriomeningitis virus (LCMV) genome to serve as replication-competent but stably attenuated immunotherapy platform (artLCMV). artLCMV targeted dendritic cells, thereby delivering tumor-associated antigens for efficient CTL induction. Additionally, owing to in vivo spread, artLCMV infected lymphoid tissue stroma expressing interleukin-33, an alarmin released from necrotic cells. Interleukin-33 signals accounted for artLCMV-induced effector CTL responses of higher magnitude and functionality than those induced by replication-deficient LCMV-, adenovirus 5- or vaccinia virus-based vectors. Accordingly, superior immunotherapeutic efficacy of artLCMV in transplantable tumor models depended on interleukin-33 signaling, and massive CTLeff influx was associated with an inflammatory conversion of the tumor. These properties, together with low seroprevalence but excellent immunogenicity of LCMV in humans, suggest artLCMV holds promise as a cancer immunotherapy platform.

2017-03-08 | GSE84039 | GEO

CD47 expression in natural killer cell regulates homeostasis and modulates immune response to lymphocytic choriomeningitis virus

Project description:CD47 is a ubiquitous cell surface receptor that limits cell clearance by phagocytes that express its counter-receptor signal-regulatory protein-α and directly regulates T cell immunity by interacting with its inhibitory ligand thrombospondin-1. Murine natural killer (NK) cells express higher levels of CD47 than other lymphocytes, but the role of CD47 in regulating NK cell homeostasis and immune function remains unclear. Cd47-/- mice exhibited depletion of NK precursors in bone marrow, but antisense Cd47 knockdown or gene disruption resulted in a dose dependent accumulation of immature and mature NK cells in spleen. Cd47-/- mice were impaired in controlling chronic Clone-13 lymphocytic choriomeningitis virus (LCMV) infection, which was associated with depletion of splenic NK cells and loss of effector cytokine and interferon response gene expression in Cd47-/- NK cells. These data identify CD47 as a cell-intrinsic and systemic regulator of NK cell homeostasis and NK cell responses to viral infection.

2019-03-11 | GSE113980 | GEO

Comparison of Trail+/+ versus Trail-/- splenic NK cells from naïve and LCMV-infected mice

Project description:Investigation of the change of the Trail-dependent NK cell transcriptome during short-term (24h) infection with lymphocytic choriomeningitis virus (LCMV). RNA sequencing-based transcriptomics analysis was performed in spleen-isolated (NK1.1+CD3-) NK cells from 3 naïve Trail+/+ mice, 3 naive Trail-/- mice, 4 LCMV-infected Trail+/+ mice, and 4 LCMV-infected Trail-/- mice.

2019-08-27 | E-MTAB-7562 | biostudies-arrayexpress

Regulatory and effector T cells in Lymphocytic choriomeningitis virus WE infection

Project description:In this study, we determined the signature of CD4+Foxp3- effector T cells and CD4+Foxp3+ Treg cells in naive animals and following LCMV WE infection. In addition, transcriptional signatures were determined in CXCR3+ CD4+Foxp3+ Treg cells arising in Th1 settings following LCMV infection.

2020-03-11 | E-MTAB-8861 | biostudies-arrayexpress

Total RNAseq of fixed M-MDSC isolated from tumor bearing and LCMV infected mice

Project description:Myeloid-derived suppressor cells (MDSC) are major negative regulators of immune responses in cancer and chronic infections. It remains unclear if regulation of MDSC activity at different conditions is controlled by similar mechanisms. In order to compare MDSC in mice with cancer and lymphocytic choriomeningitis virus (LCMV) infection, we would like to perform gene profiling and comparison of M-MDSCs in tumor bearing and LCMV infected mice using total RNAseq:

2021-08-02 | GSE179278 | GEO

scGEX/scTCR-Seq of CD44+ cytotoxic T cells in LCMV-infected Wildtype and Il1rl1-ExAB-/- mice

Project description:To study the effect of IL-33 sensing on CD8 T cell differentiation during acute infection with lymphocytic choriomeningitis virus (LCMV), activated CD44+ CTLs were flowcytometrically sorted from infected C57BL/6 wildtype and Il1rl1 gene-targeted mice (Il1rl1-ExAB-/-) and subjected to combined single-cell gene expression and single cell TCR-Seq analysis.

2023-10-17 | GSE204693 | GEO

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