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Salmonella Typhimurium transcription profiles in space flight

ABSTRACT: Salmonella transcription profiles were obtained from samples flown on space shuttle mission STS-115, and compared to profiles from Salmonella grown under identical conditions on the ground. Keywords: stress response, transcriptional profile

ORGANISM(S): Salmonella enterica

PROVIDER: GSE8573 | GEO | 2007/09/13

SECONDARY ACCESSION(S): PRJNA101717

REPOSITORIES: GEO

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Salmonella Typhimurium transcription profiles in space flight

Project description:Salmonella transcription profiles were obtained from samples flown on space shuttle mission STS-115, and compared to profiles from Salmonella grown under identical conditions on the ground. Keywords: stress response, transcriptional profile Triplicate experimental samples were hybridized to slides that contain three identical Salmonella ORF arrays. Each hybridization was performed with Cy3 labeled total RNA and Cy5 labeled gDNA as control.

2007-09-13 | E-GEOD-8573 | biostudies-arrayexpress

Microarray Analysis of Space-flown Murine Thymus Tissue

Project description:Microarray Analysis of Space-flown Murine Thymus Tissue Reveals Changes in Gene Expression Regulating Stress and Glucocorticoid Receptors. We used microarrays to detail the gene expression of space-flown thymic tissue and identified distinct classes of up-regulated genes during this process. We report here microarray gene expression analysis in young adult C57BL/6NTac mice at 8 weeks of age after exposure to spaceflight aboard the space shuttle (STS-118) for a period of 13 days. Upon conclusion of the mission, thymus lobes were extracted from space flown mice (FLT) as well as age- and sex-matched ground control mice similarly housed in animal enclosure modules (AEM). mRNA was extracted and an automated array analysis for gene expression was performed. Examination of the microarray data revealed 970 individual probes that had a 1.5 fold or greater change. When these data were averaged (n=4), we identified 12 genes that were significantly up- or down-regulated by at least 1.5 fold after spaceflight (p≤0.05). Together, these data demonstrate that spaceflight induces significant changes in the thymic mRNA expression of genes that regulate stress, glucocorticoid receptor metabolism, and T cell signaling activity. These data explain, in part, the reported systemic compromise of the immune system after exposure to the microgravity of space.

2010-03-10 | GSE18388 | GEO

The effects of spaceflight on the muscles of the murine shoulder

Project description:The study compared the protein composition of supraspinatus muscle from the spaceflight mice subjected to either the 13-day NASA STS-135 mission or the 30-day Bion-M1 mission and their corresponding ground control mice.

2019-11-08 | PXD006764 | Pride

Space flight mouse plasma cell-free RNA seuqnencing in Mouse Habitat Unit-1 (MHU-1)

Project description:Purpose: Sequencing analysis of plasma cell-free RNA was performed to study the effects of space flight and microgravity environment in mice. Methods: Plasma samples were collected during the JAXA MHU-1 mission as reported previously (Shiba et al., 2017, Scientific Reports). Total RNA was purified from plasma samples and processed for sequencing analysis, to compare RNA expression profiles in ground control, space flight and artificial 1-G control groups.

2022-11-16 | GSE213808 | GEO

Effects of spaceflight on murine skeletal muscle gene expression

Project description:Spaceflight results in a number of adaptations to skeletal muscle, including atrophy and shifts towards faster muscle fiber types. To identify changes in gene expression that may underlie these adaptations, microarray expression analysis was performed on gastrocnemius from mice flown on the STS-108 shuttle flight (11 days, 19 hours) versus mice maintained on earth for the same period. Additionally, to identify changes that were due to unloading and reloading, microarray analyses were conducted on calf muscle from ground-based mice subjected to hindlimb suspension (12 days) and mice subjected to hindlimb suspension plus a brief period of reloading (3.5 hours) to simulate the time between landing and sacrifice of the spaceflight mice.

2008-12-28 | GSE10533 | GEO

Evaluating the effect of spaceflight on the host-pathogen interaction between human intestinal epithelial cells and Salmonella Typhimurium

Project description:Spaceflight uniquely alters the physiology of both human cells and microbial pathogens, stimulating cellular and molecular changes directly relevant to infectious disease. However, the influence of this environment on host-pathogen interactions remains poorly understood. Here we report our results from the STL-IMMUNE pilot study flown aboard STS-131, which investigated multi-omic responses (transcriptomic, proteomic) of human intestinal epithelial cells to infection with Salmonella Typhimurium when both host and pathogen were simultaneously exposed to spaceflight. To our knowledge, this is the first in vitro in-flight infection and dual RNA-seq analysis using human cells.

2021-02-19 | GSE156066 | GEO

Evaluation of in vitro macrophage differentiation during space flight

Project description:We differentiated mouse bone marrow cells in the presence of recombinant macrophage colony stimulating (rM-CSF) factor for 14 days during the flight of space shuttle Space Transportation System (STS)-126. We tested the hypothesis that the receptor expression for M-CSF, c-Fms was reduced. We used flow cytometry to assess molecules on cells that were preserved during flight to define the differentiation state of the developing bone marrow macrophages; including CD11b, CD31, CD44, Ly6C, Ly6G, F4/80, Mac2, c-Fos as well as c-Fms. In addition, RNA was preserved during the flight and was used to perform a gene microarray. We found that there were significant differences in the number of macrophages that developed in space compared to controls maintained on Earth. We found that there were significant changes in the distribution of cells that expressed CD11b, CD31, F4/80, Mac2, Ly6C and c-Fos. However, there were no changes in c-Fms expression and no consistent pattern of advanced or retarded differentiation during space flight. We also found a pattern of transcript levels that would be consistent with a relatively normal differentiation outcome but increased proliferation by the bone marrow macrophages that were assayed after 14 days of space flight. There also was a surprising pattern of space flight influence on genes of the coagulation pathway. These data confirm that a space flight can have an impact on the in vitro development of macrophages from mouse bone marrow cells. MESH:Space Flight/Space Flight

2017-03-15 | GSE95544 | GEO

Real-time quantitative PCR analysis of human cardiovascular progenitor cells flown aboard the International Space Station [miRNA]

Project description:Adult and neonatal human cardiovacular progenitor cell clonal populations were flown aboard the ISS for 12 days prior to fixation in RNAProtect, total RNA purification, and microRNA expression analysis against clone-, patient-, and passage-matched ground control samples.

2018-07-26 | GSE110561 | GEO

Real-time quantitative PCR analysis of human cardiovascular progenitor cells flown aboard the International Space Station [conventional RT-PCR]

Project description:Adult and neonatal human cardiovacular progenitor cell clonal populations were flown aboard the ISS for 12 days prior to fixation in RNAprotect. Gene expression analysis was performed against clone- and passage-matched ground control samples.

2018-07-26 | GSE110562 | GEO

Real-time quantitative PCR analysis of human cardiovascular progenitor cells flown aboard the International Space Station [Custom mRNA array]

2018-07-26 | GSE110560 | GEO

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