Macrophage inhibitory cytokine MIC-1 is upregulated by short-wavelength light in cultured normal human dermal fibroblasts

Masashi Akiyama, Keiko Okano, Yoshitaka Fukada, Toshiyuki Okano

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    11 Citations (Scopus)


    To better understand dermal response to visible light, we used DNA microarray analysis to search genes induced by blue or near-UV light in normal human dermal fibroblasts. Of about 12 800 transcripts analyzed, near-UV light most prominently upregulated the transcript level of Mic-1, a gene encoding a TGF-β superfamily protein. Quantitative RT-PCR and immunoblot analyses revealed that mRNA and protein levels of Mic-1 were upregulated by both short-wavelength light but not by green or red light. These results suggest that the human dermis is a site for macrophage inhibitory cytokine-1 (MIC-1) production and that visible light activates a dermal transcription cascade. Considering the role of MIC-1 in immune regulation and appetite control, photic MIC-1 regulation is of physiological importance.

    Original languageEnglish
    Pages (from-to)933-937
    Number of pages5
    JournalFEBS Letters
    Issue number5
    Publication statusPublished - 2009 Mar 4



    • Blue light
    • Dermal fibroblast
    • MIC-1
    • Microarray
    • Near-UV light

    ASJC Scopus subject areas

    • Biochemistry
    • Biophysics
    • Cell Biology
    • Genetics
    • Molecular Biology
    • Structural Biology

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