Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Spermine-induced DNA methylation change in human macrophages

ABSTRACT: Polyamines, crucial molecules involved in cell proliferation and growth, play a pivotal role in cancer development and progression. Within the tumor microenvironment, macrophages, key components of the immune system, exhibit a complex relationship with polyamines. Evidence suggests that polyamines can modulate macrophage polarization, influencing their functional phenotypes. Here, we detected the gene DNA methylation changes in spermine-stimulated human macrophages isolated from PBMCs and TAMs.

ORGANISM(S): Paslahepevirus balayani Mycobacterium canetti Yersinia pestis Streptobacillus moniliformis Escherichia coli O157:H7 Mycobacterium tuberculosis variant bovis Francisella tularensis subsp. novicida Mycobacterium avium Bartonella henselae Rickettsia typhi Mammarenavirus choriomeningitidis Toxoplasma gondii Orthohantavirus seoulense Francisella tularensis subsp. holarctica Yersinia enterocolitica Bartonella quintana Homo sapiens Mycobacterium avium subsp. paratuberculosis Leptospira interrogans Campylobacter jejuni Francisella tularensis subsp. mediasiatica Orthohantavirus puumalaense Salmonella enterica subsp. enterica serovar Typhimurium Mycobacterium tuberculosis Francisella tularensis subsp. tularensis Mycobacterium tuberculosis variant microti Rickettsia prowazekii Staphylococcus aureus Yersinia pseudotuberculosis Cowpox virus

PROVIDER: GSE267014 | GEO | 2024/05/13

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Spermine-induced gene expression change in human macrophages

Project description:Polyamines, crucial molecules involved in cell proliferation and growth, play a pivotal role in cancer development and progression. Within the tumor microenvironment, macrophages, key components of the immune system, exhibit a complex relationship with polyamines. Evidence suggests that polyamines can modulate macrophage polarization, influencing their functional phenotypes. Here, we detected the gene expression changes in spermine-stimulated human macrophages isolated from PBMCs.

2024-05-12 | GSE266867 | GEO

Cellular spermine controls autoinflammation by targeting JAK1 to restrain cytokine response

Project description:Using an unbiased metabolomics approach and a IFN-stimulated response elements (ISRE) reporter screening system, we have identified the cellular metabolite spermine as an endogenous brake restraining IFN-I signaling and autoinflammation. Cellular spermine concentration decrease upon stimulations with IFN-I, IL-2, and IL-6. Spermine suppresses phosphorylation of JAK1 in macrophages responding to IFN-I, T cells responding to IL-2, and fibroblasts responding to IL-6. Mechanistically, spermine binds directly to the N-terminal domains of JAK1, resulting in impaired IFNAR2-JAK1 interaction required for initiating downstream signaling and, subsequently, restrained IFN-I effector response. Moreover, spermine attenuates SLE progression in an SLE murine model and reduces IFN-I signaling in PBMCs from SLE patients.

2024-06-21 | GSE192366 | GEO

Physiological concentration changes of intracellular spermine activates DNA methyltransferase 3A and 3B and affects gene methylation

Project description:Polyamines are essential for various cell functions and are produced in most cells, as well as being taken up from extracellular sources. Polyamines, especially spermine, in blood cells increase when polyamines are supplied from the digestive tract. Altered polyamine metabolism has an impact on substrate concentrations and enzyme activities involved in gene methylation, and may affect gene expression. Therefore, we investigated the effect of decreased polyamine synthesis and extracellular spermine supply on substrate concentrations and enzyme activities involved in gene methylation and on changes of methylation in promoter regions using methylation arrays. In Jurkat cells and human mammary epithelial cells, changes in polyamine concentrations differed after polyamine synthesis inhibition. However, S-adenosylmethionine decarboxylase activity and the decarboxylated S-adenosylmethionine to S-adenosyl-L-methionine ratio were decreased by spermine addition in both cells. After inhibiting polyamine synthesis in Jurkat cells by D,L-alpha-difluoromethylornithine, the protein levels of DNA methyltransferase (DNMT) 1, 3A and 3B were not changed, but the activity of the three enzymes markedly decreased. The protein levels of these enzymes were not changed by addition of spermine; however, DNMT 3B was markedly activated and DNMT 3A was also activated. DNMT 1 was not activated. Effects on methylation of promoter regions included significant changes for tumor suppressor genes in response to altered polyamine metabolism. However, no significant changes in methylation status were found on genes of which methylation status and their related protein levels were affected by spermine. When considering these results, there are many genes for which polyamines have an impact on expression via methylation of promoter regions.

2018-03-15 | GSE111807 | GEO

Spermine-induced DNA methylation change in human macrophages

Project description:Spermine-induced DNA methylation change in human macrophages

| PRJNA1109345 | ENA

Spermine-induced gene expression change in human macrophages

Project description:Spermine-induced gene expression change in human macrophages

| PRJNA1108626 | ENA

Genes responsive to the addition of spermidine or spermine to a polyamine-deficient Saccharomyces cerevisiae mutant

Project description:The naturally occurring polyamines putrescine, spermidine or spermine are ubiquitous in all cells. Although polyamines have prominent regulatory roles in cell division and growth, precise molecular and cellular functions are not well established in vivo. In this work we have performed a microarray experiment in a polyamine mutant (delta-spe3 delta-fms1) strain to investigate the responsiveness of yeast genes to supplementation with spermidine and spermine. Expression analysis identified genes responsive to the addition of either excess spermidine (10-5 M) or spermine (10-5 M) compared to a control culture containing 10-8 M spermidine. 247 genes were up-regulated >2-fold, and 11 genes were up-regulated more than 10-fold after spermidine addition. Functional categorization of the genes showed induction of transport related genes, and genes involved in methionine, arginine, lysine, NAD and biotin biosynthesis. 268 genes were down-regulated more than 2-fold, and 6 genes were down-regulated more than 8-fold after spermidine addition. A majority of the down-regulated genes are involved in nucleic acid metabolism and various stress responses. In contrast, only few genes (18) were significantly responsive to spermine. Thus, results from global gene expression profiling demonstrate a more major role for spermidine in modulating gene expression in yeast than spermine.

2009-08-20 | GSE15269 | GEO

Microarray data of differentiated human keratinocytes treated with and without AMD1 inhibitor EGBG and rescued with spermidine/ spermine.

Project description:Maintaining tissue homeostasis depends on a balance of cell proliferation, differentiation and apoptosis. Polyamine regulator, AMD1, is a crucial regulator of keratinocyte differentiation and AMD1 protein is upregulated on differentiation and highly expressed in the suprabasal layers of the human epidermis. During keratinocyte differentiation, elevated AMD1 promotes decreased putrescine and increased spermine levels. Inhibition of AMD1 results in reduced spermine levels and inhibition of keratinocyte differentiation. Supplementing AMD1 inhibited keratinocytes with exogenous spermidine/spermine rescued aberrant differentiation. Undifferentiated and differentiated keratinocytes that had been treated with and without AMD1 inhibitor EGBG in the presence or absence of spermidine/ spermine supplementation were subjected to microarray analysis. These data show that AMD1 up regulation is required for keratinocyte differentiation and that inhibition of AMD1 can be rescued by supplementation with the polyamines spermidine and spermine.

2021-01-15 | GSE164881 | GEO

Cellular spermine targets JAK1 to restrain cytokine-mediated autoimmunity (Human)

Project description:Whole blood samples from SLE patients were collected and PBMCs were isolated using Ficoll-PaqueTM PLUS reagent according to the manufacturer’s protocol. The fresh isolated PBMCs from SLE individuals were treated with DMSO or spermine for 3h, PBMCs from healthy control were used as control, then samples were harvested and lysated with Trizol reagend for RNA-sequencing analysis.

2024-06-21 | GSE223097 | GEO

DSS/spermine

Project description:Have you tried spermine?

| PRJEB17622 | ENA

Tpo1‐mediated spermine and spermidine export controls cell cycle delay and times antioxidant protein expression during the oxidative stress response

Project description:Cells counteract oxidative stress by altering metabolism, cell cycle and gene expression. However, the mechanisms that coordinate these adaptations are only marginally understood. Here we provide evidence that timing of these responses in yeast requires export of the polyamines spermidine and spermine. We show that during hydrogen peroxide (H2O2) exposure, the polyamine transporter Tpo1 controls spermidine and spermine concentrations and mediates induction of antioxidant proteins, including Hsp70, Hsp90, Hsp104 and Sod1. Moreover, Tpo1 determines a cell cycle delay during adaptation to increased oxidant levels, and affects H2O2 tolerance. Thus, central components of the stress response are timed through Tpo1‐controlled polyamine export.

2019-06-10 | PXD013373 | Pride

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data