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Study of extremely low frequency electromagnetic field (ELF-EMF) responses of human HaCaT keratinocytes: Control vs. ELF-EMF

ABSTRACT: Use DNA microarray technology to discover transciprtional insights of HaCaT for continuous exposure to ELF-EMF

ORGANISM(S): Homo sapiens

PROVIDER: GSE45631 | GEO | 2014/03/29

SECONDARY ACCESSION(S): PRJNA195446

REPOSITORIES: GEO

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Study of extremely low frequency electromagnetic field (ELF-EMF) responses of human HaCaT keratinocytes: Control vs. ELF-EMF

Project description:Use DNA microarray technology to discover transciprtional insights of HaCaT for continuous exposure to ELF-EMF We used a loop design in this study (details in the 'loop_design.tiff' supplementary file), cDNA microarray experiment consisted of ten RNA samples, including ELF-EMF exposed, UVB irradiated (positive control), and sham exposed samples.

2014-03-29 | E-GEOD-45631 | biostudies-arrayexpress

Extremely low frequency electromagnetic fields (ELF-EMFs) effect on the genetic expression profile of a human keratinocyte line (HaCaT)

Project description:Clinical evidence has shown that electromagnetic fields produce a benefical therapeutic result for wounds, however little is still known about their exact mechanism of action. Moreover, clinical results concerning skin tissue restoration are still debated. In the present study, we carried out gene expression profiling of a human keratinocyte line (HaCaT) submitted to 1 hour of ELF-EMF (frequency 50Hz, intensity 1 mT) in order to identify up- and downregulated genes by this stimulus, and to verify the presence of specific molecular pathways activation. Most of the genes modulated were involved in mechanisms such as protein synthesis. In particular, these genes are related to Mammalian target of Rapamycin (mTOR), which has been identified as a kinase with a pivotal role in cellular proliferation and survival in mammals. In this study, we analyzed the expression profiles of 3 biological replicates of HaCaT cells exposed to ELF-EMF (frequency 50Hz, intensity 1 mT) for 1 hour. All HaCaT cells exposed to ELF-EMF RNAs were hybridized against control sham-exposed HaCaT cells RNAs. Each biological sample was repeated with a technical replicate (extraction-labeling) and a dye-swap experiment.

2012-10-31 | E-GEOD-37833 | biostudies-arrayexpress

Extremely low frequency electromagnetic fields (ELF-EMFs) effect on the genetic expression profile of a human keratinocyte line (HaCaT)

2012-10-31 | GSE37833 | GEO

cDNA microarray analysis of human keratinocytes irradiated by ELF-EMF

Project description:The ami of this study was to investigate the possible biological effects of ELF-EMF by cDNA microarray. Keywords: ELF-EMF, cDNA microarray, keratinocyte, cytoskeleton

2006-10-12 | GSE3421 | GEO

Extremely low frequency electromagnetic fields enhance neuronal differentiation of human mesenchymal stem cells on graphene-based substrate

2014-12-23 | GSE64416 | GEO

Extremely low frequency electromagnetic fields enhance neuronal differentiation of human mesenchymal stem cells on graphene-based substrate

Project description:Graphene-based substrate has efficient neuronal differentiation of hMSCs. Stimulatory effects of graphene on hMSCs neurogenesis can be enhanced by ELF-EMF exposure and it is mediated by enhancement of cell adhesion accompanied by intracellular signal pathway. We used microarrays to assess up-regulated genes in human gene expression profiles during neurogenesis induced by ELF-EMF exposure on graphene. 3 groups (HMSCs grown in neuronal medium on glass, graphene, graphene under ELF-EMF exposure) were selected for RNA extraction and hybridization on Affymetrix microarrays. We sought to obtain total human gene expression. To that end, we hand-selected up-regulated gene involved in neurogenesis, extracellular matrix, and cell migration.

2014-12-23 | E-GEOD-64416 | biostudies-arrayexpress

MicroRNA expression proï¬ling in GC-2 cells following 50 Hz ELF-EMF

Project description:Aberrant miRNA expression has been related to the development of human germ cell tumors, but little is known about effect of ELF-EMFs on miRNA expression. ELF-EMFs may epigenetically modify cells, which may account for the adverse effects of ELF-EMFs on the male reproductive system. To identify miRNAs that were differentially expressed between the sham and ELF-EMF exposure groups, we performed an Affymetrix microarray analysis to establish the miRNA expression profiles. Mouse spermatocyte-derived GC-2 cells were intermittently exposed to a 50 Hz ELF-EMF for 72 h (5 min on/10 min off) at magnetic field intensities of 1 mT and 3 mT. miRNA expression was profiled using Affymetrix Mouse Genechip miRNA 3.0 arrays.

2016-07-01 | E-GEOD-71147 | biostudies-arrayexpress

MicroRNA expression proﬁling in GC-2 cells following 50 Hz ELF-EMF

2016-07-01 | GSE71147 | GEO

Study of the extremely low-frequency electromagnetic field responses of pig myometrium

Project description:Study of the extremely low-frequency electromagnetic field (ELF-EMF, 50 Hz, 2 h) responses of pig myometrium: Control vs. ELF-EMF

| PRJEB42848 | ENA

Using Model Organism Saccharomyces Cerevisiae to Evaluate the Differential Effects of ELF-MF and RF-EMF exposure on Global Gene Expression

Project description:The potential health hazard of exposures to electromagnetic fields (EMF) continues to cause much public concern. However, the biological and health effects of exposures to EMF remain controversial and their biophysical mechanisms are unclear. In the present study, we used Saccharomyces cerevisiae to identify genes responding to extremely low frequency magnetic fields (ELF-MF) and to radiofrequency (RF) EMF exposures. The expression of genes was analyzed by microarray screening and confirmed by real-time reverse transcription -polymerase chain reaction. In confirmation experiments, we found that there was no statistically significant change in three of the ELF-MF responsive candidate genes (P>0.05). On the other hand, out of the forty genes that responded to RF-EMF, the confirmation experiments found that only five were affected: structural maintenance of chromosomes 3-gene (SMC3), aquaporin 2 –gene (AQY2), halotolerance protein 9 –gene (HAL9), yet another kinase 1 -gene (YAK1) and one of unknown function gene (open reading frame: YJL171C) (P<0.05). Overall, this study has demonstrated that the yeast cells did not respond to 50 Hz ELF-MF and that the response to RF-EMF is limited to only five genes. The biological consequences of the observed gene expression changes induced by RF-EMF await further investigation. The yeast cells were exposed to 0.4 mT 50 Hz ELF-MF or 1800 MHz RF-EMF at a specific absorption rate of 3.5 W/kg for 6 hours.

2011-02-15 | E-GEOD-27308 | biostudies-arrayexpress

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