Rattus norvegicus
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ABSTRACT:
PROVIDER: PRJNA103535 | ENA |
REPOSITORIES: ENA
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Project description:To examine changes in gene expression that might occur in CNS glial cells in response to the secreted products of immune cells, we used gene array analysis to assess the early effects of different cytokine mixtures on rat mixed CNS glia in culture. We compared effects at 6 hours of cytokines typical of Th1 and Th2 lymphocytes, and monocyte marophages (M/M).. We found unique patterns of changes in gene expression for each of the three cytokine mixtures, including changes in immune-related molecules, neurotrophins, growth factors, proteins involved in axon/glial interactions, ion channels, neurotransmitters, mitochondrial function and apoptosis. These changes may have relevance in neuroprotective or damaging mechanisms in neurodegenerative diseases such as multiple sclerosis, specifically with regard to formation, repair or inhibition of lesion formation. Experiment Overall Design: Mixed CNS glia cultures from newborn rat brain were treated for 6 hours with cytokine mixtures representative of Th1, Th2 or monocyte/macrophage cytokines
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2016-09-02 | GSE44150 | GEO
Project description:To examine changes in gene expression that might occur in CNS glial cells in response to the secreted products of immune cells, we used gene array analysis to assess the early effects of different cytokine mixtures on rat mixed CNS glia in culture. We compared effects at 6 hours of cytokines typical of Th1 and Th2 lymphocytes, and monocyte marophages (M/M).. We found unique patterns of changes in gene expression for each of the three cytokine mixtures, including changes in immune-related molecules, neurotrophins, growth factors, proteins involved in axon/glial interactions, ion channels, neurotransmitters, mitochondrial function and apoptosis. These changes may have relevance in neuroprotective or damaging mechanisms in neurodegenerative diseases such as multiple sclerosis, specifically with regard to formation, repair or inhibition of lesion formation. Keywords: Treatment with different cytokine mixtures
2008-11-07 | GSE9659 | GEO
Project description:A series of two color gene expression profiles obtained using Agilent 44K expression microarrays was used to examine sex-dependent and growth hormone-dependent differences in gene expression in rat liver. This series is comprised of pools of RNA prepared from untreated male and female rat liver, hypophysectomized (‘Hypox’) male and female rat liver, and from livers of Hypox male rats treated with either a single injection of growth hormone and then killed 30, 60, or 90 min later, or from livers of Hypox male rats treated with two growth hormone injections spaced 3 or 4 hr apart and killed 30 min after the second injection. The pools were paired to generate the following 6 direct microarray comparisons: 1) untreated male liver vs. untreated female liver; 2) Hypox male liver vs. untreated male liver; 3) Hypox female liver vs. untreated female liver; 4) Hypox male liver vs. Hypox female liver; 5) Hypox male liver + 1 growth hormone injection vs. Hypox male liver; and 6) Hypox male liver + 2 growth hormone injections vs. Hypox male liver. A comparison of untreated male liver and untreated female liver liver gene expression profiles showed that of the genes that showed significant expression differences in at least one of the 6 data sets, 25% were sex-specific. Moreover, sex specificity was lost for 88% of the male-specific genes and 94% of the female-specific genes following hypophysectomy. 25-31% of the sex-specific genes whose expression is altered by hypophysectomy responded to short-term growth hormone treatment in hypox male liver. 18-19% of the sex-specific genes whose expression decreased following hypophysectomy were up-regulated after either one or two growth hormone injections. Finally, growth hormone suppressed 24-36% of the sex-specific genes whose expression was up-regulated following hypophysectomy, indicating that growth hormone acts via both positive and negative regulatory mechanisms to establish and maintain the sex specificity of liver gene expression. For full details, see V. Wauthier and D.J. Waxman, Molecular Endocrinology (2008)
2008-05-24 | GSE11529 | GEO