Similar Datasets
Project description:Validation of the methodology for extracting and demonstrating the quality of the ability to profile RNA in sperm of rhesus macaques.
2021-03-17 | GSE168978 | GEO
Project description:Exposure to stress is a risk factor for perturbed mental health, including impoverished regulation of emotional and physiological responses that accompany anxiety and mood disorders, substance abuse and behavioral disorders. Such disruptions to well-being could be triggered by discrete environmental events or pervasive early life stress (ELS) resulting for example from adverse caregiving. Recent data mostly collected from rodents exposed to anthropogenic stressors suggest that one way via which the detrimental effects of such stress extend beyond the exposed population to future offspring is via stress-induced alterations of RNA found in the paternal germline. In contrast, less attention has been paid to how naturally occurring stress in males might influence offspring biology and behavior. In this study, we used a translational nonhuman primate model of ELS caused by naturally occurring adverse caregiving of infant macaques to (1) profile total RNA in the adolescent male germline, and (2) identify how those RNA profiles are affected by exposure to ELS. Our findings that the top 100 transcripts identified correspond to transcripts related to germline biology and reproduction demonstrate the validity and feasibility of profiling RNA in the germline of rhesus macaques. While our small sample sizes precluded definitive assessment of stress-induced alterations of RNA in the male germline of rhesus macaques that experienced ELS, our study sets the foundation for future investigations of how early adversity might alter the male germline, across species and in experimental protocols that involve anthropogenic vs natural stressors.
| S-EPMC8671153 | biostudies-literature
Project description:We have quantified gene expression in five tissues (brain, heart, kidney, liver and testis) from humans, chimpanzees and rhesus macaques using the Illumina NlaIII Digital Gene Expression (DGE) protocol. This dataset extends a previous microarray study by Khaitovich et al. (Khaitovich et al. 2005) with the rhesus macaque outgroup and complements other previously generated tissue transcriptome profiles from primates (Enard et al. 2002; Khaitovich et al. 2006; Somel et al. 2009; Babbitt et al. 2010; Blekhman et al. 2010; Wetterbom et al. 2010). contributor: Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103 Leipzig, Germany Samples were obtained from brain (pre-frontal cortex), heart, kidney, liver, and testis tissues of male humans, chimpanzees and rhesus macaques. Illumina NlaIII DGE libraries for all samples were generated in tissue batches, randomizing species in library preparation and sequencing. Human samples originate from different, probably unrelated, individuals for each tissue. For chimpanzees and rhesus macaques the libraries for all tissues come from the same set of individuals and among these are individuals related at the half- and full-sibling level. Due to limited access to samples, the analysis could not be limited to individuals of similar age. Human individuals vary between 5 and 88 years of age, chimpanzees between 6 years and 35 years of age and rhesus macaques between 3 and 9 years of age.
2013-10-01 | E-GEOD-50782 | biostudies-arrayexpress
Project description:Profiling non-human primate exosomal RNA to understand the legacy of early life stress
| PRJNA929263 | ENA
Project description:Exosomes from the brains of rhesus macaques were isolated and characterized, both with and without simian immunodeficiency virus (SIV) induced central nervous system (CNS) disease. Small RNA sequencing revealed that exosomes from the brains of animals with CNS disease contained significantly increased miR-21, a microRNA we have previously shown to be significantly increased in both SIV and HIV induced CNS disease. In addition to neurons in the brain, macrophage/microglial cells/nodules also express miR-21 during SIV induced CNS disease. In vitro culture of macrophages revealed that miR-21 is released into exosomes, and exosomes from macrophage cultures produced from WT, but not miR-21-/- KO, animals are neurotoxic. We find this neurotoxicity is dependent upon exosome carriage of miR-21, and mutation of the sequence within miR-21 predicted to bind TLR7 eliminates this neurotoxicity. Indeed exosomal miR-21 activates TLR7 in a reporter cell line, and the neurotoxicity of exosomal miR-21 is dependent upon TLR7, as neurons isolated from TLR7-/- KO mice are protected from neurotoxicity. Finally, we show that exosomes isolated from the brains of monkeys with SIV induced CNS disease both activate TLR7 and are neurotoxic when compared to exosomes from control animals.
2018-01-29 | GSE109414 | GEO
Project description:Exosomes are small extracellular nano-vesicles of endocytic origin that mediate different signals between cells, by surface interactions and by shuttling of functional RNA from one cell to another. In this study, we show that exosomes, produced by mouse mast cells exposed to oxidative stress, change their mRNA content and also that these exosomes can influence the response of other cells to oxidative stress by providing recipient cells with a resistance against oxidative stress. Finally, we also show that UV-light affect the biological functions associated with exosomes released under oxidative stress. These results argue that exosomal shuttle of RNA is involved in cell-to-cell communication, by influencing the response of recipient cells to an external stimulus. We used microarrays to detail to examine the gene expression underlying the effect of H2O2 on the exosomal RNA and how exosomes isolated from oxidative stress influence the growth of recipient cells during oxidative stress. The mRNA content of the exosomes from normal conditions (MC9 Exo_norm) were compared to that from exosomes from H2O2 conditions (MC9 Exo_H2O2). The mRNA content of recipient cells MC9 were identified before (MC9 cells_norm) and after (MC9 cells_H2O2) addition of exosomes that were isolated from normal and H2O2 conditions.
2011-01-07 | E-GEOD-24886 | biostudies-arrayexpress
Project description:Remote ischemic conditioning (RIC) is a safely therapeutic strategy for a variety of ischemic diseases, with efficiency comparable to the classic in-situ ischemic methods. Recent evidence has shown that RIC could alter the content of circulating exosomes. microRNAs involves in numerous functionally different biological and physiological processes. The aim of this study is to identify the differentially expressed exosomal microRNAs in rat plasma with RIC and to further explore the functions in ischemic heart diseases. Five RIC rats and 5 control rats were enrolled in this study. We used microarray analysis to identify miRNA expression in their plasma exosomes.
2022-04-01 | GSE198747 | GEO
Project description:This SuperSeries is composed of the following subset Series: GSE34737: Comparative analysis of mRNA expression in untreated lymph node stroma cells and upon treatment with exosomes derived from ASMLwt, ASML cd44v knockdown cells. GSE34738: Characterization of exosomes from highly metastatic pancreatic adenocarcinoma line: ASML and a CD44v kd of ASML based on their miRNA content Refer to individual Series
2011-12-28 | E-GEOD-34739 | biostudies-arrayexpress
Project description:The objective of this study was to characterise the changes in the exosomal miRNA concentrations circulating in the maternal plasma between mothers delivering term and preterm neonates, across gestation using a longitudinal study design. A retrospective stratified study design was used to characterize the miRNA content in exosomes present in maternal plasma of term (n=20 per time point) and preterm birth (PTB) (n=10 per time point) across gestation (i.e. first, second and third trimester).
2019-02-12 | GSE115572 | GEO
Project description:Exosomes were isolated from plasma and saliva of healthy individuals and head and neck cancer (HNSCC) patients. miRNA profiling of plasma- and saliva-derived exosomes was performed using nCounter SPRINT system. Diagnostic panels were selected from the exosomal miRNA profile.
2022-08-31 | GSE209670 | GEO