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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Gene expression profiling of HOS (human osteosarcoma) cells exposed to fluoride

ABSTRACT: Though fluoride is considered an essential trace element, chronic exposure to fluoride is known to cause toxic effects. Chronic exposure of high concentration of fluoride may leads to fluorosis. To understand the molecular mechanism of fluoride induced toxicity gene expression profiling was performed on osteosarcoma cells (HOS). Cells were exposed to sub-lethal concentration of fluoride (8 ppm) for 30 days. Our result demonstrates that fluoride alters multiple biological pathways including bone development, osteoblast differentiation and apoptotic pathways. HOS cells grown in MEM were treated with fluoride and total RNA was isolated from cells after 30 days exposure. Three replicates per group were used for the experiment.

ORGANISM(S): Homo sapiens

SUBMITTER: Dr. saravana devi

PROVIDER: E-GEOD-70719 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Fluoride-Induced Oxidative and Inflammatory Stress in Osteosarcoma Cells: Does It Affect Bone Development Pathway?

Gandhi Deepa D Naoghare Pravin K PK Bafana Amit A Kannan Krishnamurthi K Sivanesan Saravanadevi S

Biological trace element research 20160528 1

Oxidative stress is reported to negatively affect osteoblast cells. Present study reports oxidative and inflammatory signatures in fluoride-exposed human osteosarcoma (HOS) cells, and their possible association with the genes involved in osteoblastic differentiation and bone development pathways. HOS cells were challenged with sublethal concentration (8 mg/L) of sodium fluoride for 30 days and analyzed for transcriptomic expression. In total, 2632 transcripts associated with several biological p ...[more]

PMID: 27234253

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Gene expression profiling of HOS (human osteosarcoma) cells exposed to fluoride

Project description:Though fluoride is considered an essential trace element, chronic exposure to fluoride is known to cause toxic effects. Chronic exposure of high concentration of fluoride may leads to fluorosis. To understand the molecular mechanism of fluoride induced toxicity gene expression profiling was performed on osteosarcoma cells (HOS). Cells were exposed to sub-lethal concentration of fluoride (8 ppm) for 30 days. Our result demonstrates that fluoride alters multiple biological pathways including bone development, osteoblast differentiation and apoptotic pathways.

2016-06-30 | GSE70719 | GEO

miRNA expression profile in HOS cells exposed to sodium fluoride

Project description:Fluorosis is caused due to excess of fluoride intake over a long period of time. Aberrant change in RUNX2-mediated signaling cascade is one of the decisive steps during the pathogenesis of fluorosis. Till date, role of fluoride on the epigenetic alterations is not studied. In the present study, global expression profiling ofshort non-coding RNAs, in particular miRNAs and snoRNAs was carried out in NaF treated HOS cells to understand their possible role in the development of fluorosis. RT-PCR and insilico hybridization revealed that miR-124 and miR-155 can be directly involved in the transcriptional regulation of RUNX2 and RANKL genes. Compare to control, C/D box analysis revealed mark elevation in the number of UG dinucleotides and D-box sequences in NaF exposed HOS cells. Herein, we report miR-124 and miR-155 as the new possible players involved in the development of fluorosis. We also state that the alterations in UG dinucleotides and D-box sequences of snoRNAs could be due to NaF exposure. HOS cells grown on MEM media were treated with sodium fluoride and total RNA was isolated from cells after one month of chronic exposure; Cells grown on six 25mm flask. two replicates of control and two different concentration of exposed samples; two replicate are served as control

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miRNA expression profile in HOS cells exposed to sodium fluoride

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MNNG/HOS cells and sarcospheres

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Global gene expression changes in osteoblasts from fluoride-tolerant mice

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Fluoride alters Ca2+ signaling and mitochondrial function in enamel cells [Mouse]

Project description:We analyzed the effects of fluoride exposure in mouse enamel cells to assess its impact on cell Ca2+ signaling

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