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Expression data from brain tissue of Rattus norvegicus treated with D-Serine

ABSTRACT: d-serine is naturally present throughout the human body. It is also used as add-on therapy for treatment-refractory schizophrenia. d-Serine interacts with the strychnine-insensitive glycine binding site of NMDA receptor, and this interaction could lead to potentially toxic activity (i.e., excitotoxicity) in brain tissue. The transcriptomic changes that occur in the brain after d-serine exposure have not been fully explored. Affymetrix microarray technology was used to determine differential gene expression resulting from D-Serine exposure. Keywords: Dose course

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE10748 | GEO | 2008/03/08

SECONDARY ACCESSION(S): PRJNA107529

REPOSITORIES: GEO

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Expression data from brain tissue of Rattus norvegicus treated with D-Serine

Project description:d-serine is naturally present throughout the human body. It is also used as add-on therapy for treatment-refractory schizophrenia. d-Serine interacts with the strychnine-insensitive glycine binding site of NMDA receptor, and this interaction could lead to potentially toxic activity (i.e., excitotoxicity) in brain tissue. The transcriptomic changes that occur in the brain after d-serine exposure have not been fully explored. Affymetrix microarray technology was used to determine differential gene expression resulting from D-Serine exposure. Keywords: Dose course Male Fisher 344 rats aged 11-12 weeks were treated with various doses (0, 5, 20, 50, 200 and 500 mg/kg) of d-serine and terminally sacrificed 96 hours post-exposure. An approximate 30mg-section of the forebrain was processed for total RNA isolation.

2008-03-08 | E-GEOD-10748 | biostudies-arrayexpress

Expression data of peritoneal macrophages from Wild-type mouse cultured in control or serine/glycine-depleted medium.

Project description:Activation of signaling pathways downstream of Toll-like receptor 4 upregulate expression of genes related to serine metabolism. We cultured peritoneal macrophages in control or serine/glycine-depleted medium for 24 hr, stimulated them with LPS (10 ng/ml) for 6 or 12 hr, and collected them to compare the gene expression. Microarray analysis revealed that serine/glycine-depletion in peritoneal macrophages upregulates gene expression of enzymes for serine biosynthesis.

2021-03-31 | GSE156325 | GEO

Rattus norvegicus

Project description:Expression data from brain tissue of Rattus norvegicus treated with D-Serine

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Exogenous and endogenous serine modulate polarization of tumor-associated macrophages to influence development of nasopharyngeal carcinoma

Project description:To investigate the global gene expression pattern in response to removal of exogenous serine/glycine from the medium, RNA-seq was performed using C666-1 cells cultured in CM or -SG medium for 24 h. The volcano plot exhibited 60 up-regulated and 123 down-regulated genes in C666-1 cells subjected to exogenous serine/glycine deprivation.

2024-04-09 | GSE263382 | GEO

RNA-seq on human muscle progenitor cells cultured with (1000 uM) or without serine and glycine

Project description:To determine the transcriptional response to serine and glycine deprivation in human muscle progenitor cells

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Patterns of Gastrointestinal Helminth Infections in Rattus rattus, Rattus norvegicus, and Mus musculus in Chile

Project description:Few studies have assessed the patterns of parasite populations of rodents over a longitudinal gradient in Chile. In this work, the gastrointestinal helminthic fauna of invasive rodents in Chile was examined to assess the association between their presence/absence and abundance with latitude, host sex, and host body condition, and to assess the coexistence and correlation of the abundance between parasite species. Rodents were obtained from 20 localities between 33 and 43°S. Helminths were extracted from the gastrointestinal tract and identified morphologically. Overall, 13 helminth taxa were obtained. The most frequently identified parasite species was Heterakis spumosa, and the most abundant was Syphacia muris, while Physaloptera sp. was the most widely distributed. No locality presented with a coexistence that was different from that expected by chance, while the abundance of five helminthic species correlated with the abundance of another in at least one locality, most likely due to co-infection rather than interaction. Host sex was associated with parasite presence or abundance, and female sex-biased parasitism was notably observed in all cases. Body condition and latitude presented either a positive or negative association with the presence or abundance of parasites depending on the species. It is notable that the likely native Physaloptera sp. is widely distributed among invasive rodents. Further, gravid females were found, suggesting spillback of this species to the native fauna. The low frequency and abundance of highly zoonotic hymenolepid species suggest that rodents are of low concern regarding gastrointestinal zoonotic helminths.

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Serine metabolism supports macrophage IL-1β production.

Project description:Serine is a substrate for nucleotides, NADPH and glutathione (GSH) synthesis. Previous studies in cancer cells and lymphocytes have shown that serine-dependent one-carbon units are necessary for nucleotide production to support proliferation. Presently, it is unknown whether serine metabolism impacts the function of non-proliferative cells, such as inflammatory macrophages. We find that in macrophages, serine is required for optimal lipopolysaccharide (LPS) induction of IL-1β mRNA expression, but not inflammasome activation. The mechanism involves a requirement for glycine, which is made from serine, to support macrophage glutathione (GSH) synthesis. Cell-permeable GSH, but not the one-carbon donor formate, rescues IL-1β mRNA expression. Pharmacological inhibition of de novo serine synthesis in vivo decreased LPS induction of IL-1β levels and improved survival in an LPS-driven model of sepsis in mice. Our study reveals that serine metabolism is necessary for GSH synthesis to support IL-1β cytokine production.

2019-01-15 | GSE125036 | GEO

Serine Metabolism Orchestrates Macrophage Polarization by Regulating the IGF1–p38 Axis

Project description:Here we show that suppressing the serine biosynthesis pathway, either by inhibiting the activity of the key enzyme phosphoglycerate dehydrogenase or by exogenous serine and glycine restriction, robustly enhances polarization of interferon-g-activated macrophages (M(IFN-g)) but suppresses that of interleukin-4-activated macrophages (M(IL-4)) both in vitro and in vivo.To further explore its mechanism, we used high-throughput sequencing technology (RNA-seq) to assess gene expression in serine-deficiency or not BMDMs

2022-02-19 | GSE196840 | GEO

Effect of D-serine on gene expression in Neuro2a cells

Project description:Serine metabolism provides essential metabolites for cellular growth and proliferation, and also produces neurotransmitters. However, how serine metabolism coordinates with functional development of neurons remains unclear. We report neurotransmitter D-serine inhibit growth of immature cells. Metabolomic analysis of neural progenitors revealed that D-serine decreases glycine synthesis thereby diminishes one-carbon metabolism, in which L-serine is a crucial carbon donor. D-serine inhibits one-carbon metabolism by competing transport of cytosolic L-serine to mitochondria, which restrains proliferation and triggers apoptosis of neural progenitors as well as neural tumor cells, but not mature neurons, in vitro and ex vivo. This RNA-seq data supports the idea that D-serine inhibits polarization and growth/proliferation of immature neurons and further indicate that immature neurons counteracts D-serine-induced cellular stress through enhancing mitochondrial function, including energy synthesis.

2024-12-01 | GSE268106 | GEO

The social life of Norway rats (Rattus norvegicus).

Project description:The Norway rat has important impacts on our life. They are amongst the most used research subjects, resulting in ground-breaking advances. At the same time, wild rats live in close association with us, leading to various adverse interactions. In face of this relevance, it is surprising how little is known about their natural behaviour. While recent laboratory studies revealed their complex social skills, little is known about their social behaviour in the wild. An integration of these different scientific approaches is crucial to understand their social life, which will enable us to design more valid research paradigms, develop more effective management strategies, and to provide better welfare standards. Hence, I first summarise the literature on their natural social behaviour. Second, I provide an overview of recent developments concerning their social cognition. Third, I illustrate why an integration of these areas would be beneficial to optimise our interactions with them.

| S-EPMC7145424 | biostudies-literature

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