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Abstract Title:

Effect of Sodium Fluoride on the Proliferation and Gene Differential Expression in Human RPMI8226 Cells.

Abstract Source:

Biol Trace Elem Res. 2015 Mar 1. Epub 2015 Mar 1. PMID: 25726004

Abstract Author(s):

Hong He, Hongmei Wang, Yuguo Jiao, Congli Ma, Han Zhang, Zhou Zhou

Article Affiliation:

Hong He

Abstract:

Although fluoride is known to reduce the incidence of caries, chronic excessive fluoride exposure can impair human health, even resulting in fluorosis. Now the underlying mechanisms of fluoride-induced toxicity are not fully understood. So, we conducted this study with the purpose of investigating the effect of sodium fluoride (NaF) in human RPMI8226 cells. In this experiment, human RPMI8226 cells were cultured with varied doses of fluoride (10, 20, 40, 80, 160, 320 μM). After 48 h exposure, the change of cell viability was examined by CCK-8 assay, and also the messenger RNA (mRNA) expression of relevant genes was assessed by QRT-PCR. Compared to the control group, fluoride exposure increased the human RPMI8226 cells viability at relatively lower levels (10-160 μM); however, when the concentration reached to 320 μM, the cell proliferation was significantly inhibited (p < 0.05). In addition, the genes mRNA expression, including ANKRD1, CRSP6, KLF2, SBNO2, ZNF649, FANCM, PDGFA, RNF152, CDK10, and CETN2 changed in a concentration-dependent manner and increased with fluoride exposure concentration. The results suggest that overexposure to fluoride (160-320 μM) caninduce cytotoxicity and regulate relevant genes expression. Our findings provide novel insights into the mechanisms of action of fluoride-induced toxicity.

Study Type : Human In Vitro

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Sayer Ji
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