Gene expression analysis reveals a functional role for the Ag-NPs-induced Egr-1 transcriptional factor in human keratinocytes

Gyeongmin Yoo, Sang Hoon Jeong, Woo In Ryu, Hana Lee, Jin Hee Kim, Hyun Cheol Bae, Sang Wook Son

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    Silver nanoparticles (Ag-NPs) have wellknown antimicrobial properties and have been widely applied as nano-strategies in myriad medical fields. Indeed, early growth response (Egr-1) is an important transcription factor that has been implicated in numerous inflammatory diseases. The administration of Ag-NPs transiently increased the levels of Egr-1 mRNA in human keratinocytes with maximal induction at the 30 minute time point. In an effort to identify molecular signatures associated with cellular responses to Ag-NPs, we adopted an approach involving gene expression profiling of human keratinocytes treated with or without Egr-1 siRNA transfection using a cDNA microarray. The microarray analysis demonstrated that: the expression profile of the genes involved in inflammation and immune response were either stimulated or repressed. Overall, this study was sufficient to reliably recognize the engagement of Egr-1-driven molecular signaling pathways in Ag-NPs-treated keratinocytes.

    Original languageEnglish
    Pages (from-to)149-156
    Number of pages8
    JournalMolecular and Cellular Toxicology
    Volume10
    Issue number2
    DOIs
    Publication statusPublished - 2014 Jun

    Keywords

    • Early growth response-1
    • Keratinocytes
    • Microarray
    • Silver nanoparticles

    ASJC Scopus subject areas

    • Pathology and Forensic Medicine
    • Toxicology
    • Pharmacology, Toxicology and Pharmaceutics(all)
    • Public Health, Environmental and Occupational Health
    • Health, Toxicology and Mutagenesis

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