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Simulated microgravity regulates the self-renewal and pluripotency of mouse and human embryonic stem cells - ChIP-seq

ABSTRACT: Simulated microgravity regulates the self-renewal and pluripotency of mouse and human embryonic stem cells - ChIP-seq

PROVIDER: PRJEB57789 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR10509320_1.fastq.gz	Fastqsanger.gz
	ERR10509320_2.fastq.gz	Fastqsanger.gz
	ERR10509321_1.fastq.gz	Fastqsanger.gz
	ERR10509321_2.fastq.gz	Fastqsanger.gz
	ERR10509322_1.fastq.gz	Fastqsanger.gz

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Simulated microgravity regulates the self-renewal and pluripotency of mouse and human embryonic stem cells - ChIP-seq

Project description:Human exploration of outer space will inevitably require human reproduction and development in the space environment. Embryonic stem cells (ESCs) are widely employed to study mammalian development and reproduction for their characteristics of indefinite self-renewal and pluripotency. Due to the lack of experimental opportunities and related techniques, studies of the effects of microgravity on the self-renewal and differentiation of ESCs are mostly descriptive, with in-depth mechanistic studies remaining scarce. Here we show in both mouse and human ESCs that simulated microgravity (SMG)-induced stress regulates the self-renewal and pluripotency in a conserved mechanism. Specifically, SMG upregulates the expression of heat shock protein (HSP) and/or HSF1 genes, thereby increasing the expression of core pluripotency factors and the activity of the Wnt pathway. In mESCs, the upregulation of Hsps and Hsf1 genes by SMG increased the activity of the LIF/STAT3 pathway. The upregulation of Tbx3 by increased activity of the Wnt and LIF/STAT3 pathways promotes the differentiation of both mouse and human ESCs to mesendoderm under the SMG environment. Finally, the ATAC-seq and ChIP-seq analysis in this study reveal a minor effect of SMG on the global chromatin accessibility and the overall patterns of the tested histone modifications in mESCs.

2023-10-19 | E-MTAB-12390 | biostudies-arrayexpress

Simulated microgravity regulates the self-renewal and pluripotency of mouse and human embryonic stem cells - RNA-seq

2023-10-19 | E-MTAB-12389 | biostudies-arrayexpress

Enhanced self-renewal of human pluripotent stem cells by simulated microgravity

Project description:We developed a fast-rotating clinostat to simulate micrigravity (µg) and investigated various effects (including proliferation, self-renewal, and cell cycle regulation) of simulated microgravity (sµg) on human pluripotent stem cells (hPSC). Cells were cultured in sµg and control condition in normal gravity (1g). We observed significant upregulation of protein translation of human pluripotency transcription factors in hPSC cultured in sµg condition compared to 1g. We also noted a significant increase in the expression levels of genes involved in telomere elongation. Our induced differentiation experiments showed that hPSC cultured in sµg condition were less susceptible towards differentiation compared to cells cultured in 1g condition as indicated by the significant delayed in the process of differentiation of the cell in sµg condition. These results suggest that sµg conditions enhance the self-renewal of hPSC. Our study further revealed that sµg enhanced the cell proliferation of hPSC by regulating the expression of cell cycle associated kinases. Moreover, RNAseq analysis indicated that in sµg condition the expression of pathways related to differentiation and development and down-regulated, while multiple components of the ubiquitin proteasome system are up-regulated, thus further contributing to an enhanced self-renewal of hPSC. These effects of sµg were not replicated in human fibroblasts. Taken together, these results highlight pathways and mechanisms in hPSC vulnerable to µg that impose significant impacts on human health and performance, physiology, and cellular and molecular processes.

2022-06-11 | GSE205559 | GEO

Enhanced self-renewal of human pluripotent stem cells by simulated microgravity

Project description:Enhanced self-renewal of human pluripotent stem cells by simulated microgravity

| PRJNA846326 | ENA

Simulated microgravity regulates the self-renewal and pluripotency of mouse and human embryonic stem cells - RNA-seq

Project description:Simulated microgravity regulates the self-renewal and pluripotency of mouse and human embryonic stem cells - RNA-seq

| PRJEB57787 | ENA

RNA sequencing of zebrafish embryos under simulated microgravity conditions

Project description:To reveal the potential mechanisms involved in the dysfunction of antiviral immune responses under simulated microgravity conditions, we investigated the transcriptional changes related to the status of innate immune responses by RNA-seq with poly I:C or mock PBS treatment under Normal gravity or simulated microgravity conditions. Our results indicate that the retinoic acid inducible gene (RIG)-I-like receptor (RLR) and Toll-like receptor (TLR) signal pathways, which are both involved in the type-I interferon induction, are significantly inhibited by simulated microgravity effects.

2020-12-22 | GSE145967 | GEO

Human Peripheral Blood Lymphcoyte(PBL): Simulated Microgravity vs. Control

Project description:Transcriptional profiling of human peripheral blood lymphocyte comparing simulated microgravity for 72 hours with untreated control. Two-condition experiment, simulated microgravity vs.untreated control. Biological replicates: 1 control, 1 treated, independently grown and harvested.

2014-04-10 | E-GEOD-56647 | biostudies-arrayexpress

static vs simulated microgravity

Project description:The below table includes a smaller list of data that was analyzed by dChip and filtered by pvalue such that a file with about 4600 genes was obtained, which allowed for ease of use from 40,000 genes. Keywords: static vs simulated microgravity

2006-12-31 | GSE4658 | GEO

1 Enhanced assembly of bacteriophage T7 produced in cell-free reactions under simulated microgravity

Project description:On-demand biomanufacturing has the potential to improve healthcare and self- sufficiency during space missions. Cell-free transcription and translation reactions combined with DNA blueprints can produce promising therapeutics like bacteriophages and virus-like particles. However, how space conditions affect the synthesis and self-assembly of such complex multi- protein structures is unknown. Here, we characterize the cell-free production of infectious bacteriophage T7 virions under simulated microgravity. Rotation in a 2D-clinostat increased the number of infectious particles compared to static controls. Quantitative analyses by mass spectrometry, immuno-dot-blot and real-time PCR showed no significant differences in protein and DNA contents, suggesting enhanced self-assembly of T7 phages in simulated microgravity. While the effects of genuine space conditions on the cell-free synthesis and assembly of bacteriophages remain to be investigated, our findings support the vision of a cell-free synthesis-enabled “astropharmacy”.

2024-03-13 | PXD044176 | Pride

Limnospira indica PCC8005 in simulated microgravity

Project description:Regenerative life support systems for space crews recycle organic and inorganic waste into water, food and oxygen using different organisms. For instance, the European Space Agency's MELiSSA uses Limnospira indica PCC8005 for air revitalisation and food production. Before use in space, the components' compatibility with reduced gravity must be tested. This innovative study introduces a novel ground analog designed specifically for microgravity experiments involving cyanobacteria, employing a cutting-edge random positioning machine (RPM). Limnospira indica PCC8005 was shown to grow slower under simulated microgravity and whole proteome analysis revealed a downregulation of e.g. ribosomal proteins, glutamine synthase and nitrate uptake transporters while an upregulation was found for gas vesicle proteins, carboxysome proteins and phycobiliproteins. All together our results suggested that L. indica experienced carbon limitation when cultivated in simulated microgravity conditions.

2024-12-19 | PXD045600 | Pride

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