Blue Light Irradiation Induces Human Keratinocyte Cell Damage via Transient Receptor Potential Vanilloid 1 (TRPV1) Regulation
| Autor: | Sae Woong Oh, See-Hyoung Park, Jae Youl Cho, Youn-Jung Kim, Ju Ah Yoo, Seyoung Yang, Jung Yoen Park, Kitae Kwon, Hyeyoun Kim, Se Jung Park, Eunbi Yu, Jongsung Lee |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Keratinocytes
Aging Light Article Subject Cell Survival TRPV1 TRPV Cation Channels Biochemistry chemistry.chemical_compound medicine HaCaT Cells Humans Protein kinase B Cell damage PI3K/AKT/mTOR pathway Cell Proliferation QH573-671 Chemistry Cell growth Cell Biology General Medicine medicine.disease Cell biology Oxidative Stress HaCaT HEK293 Cells Gene Expression Regulation Signal transduction Capsazepine Cytology Research Article Signal Transduction |
| Zdroj: | Oxidative Medicine and Cellular Longevity, Vol 2020 (2020) Oxidative Medicine and Cellular Longevity |
| ISSN: | 1942-0900 |
| DOI: | 10.1155/2020/8871745 |
| Popis: | Although blue light has been reported to affect skin cells negatively, little is known about its action mechanisms in skin cells. Therefore, we investigated the role of the transient receptor potential vanilloid 1 (TRPV1) in blue light-induced effects on human keratinocytes and its underlying mechanisms. Blue light decreased cell proliferation and upregulated TRPV1 expression. Blue light also suppressed the epidermal growth factor receptor- (EGFR-) mediated signaling pathway by reducing the protein levels of EGFR and suppressing the EGFR/PI3K/AKT/GSK3β/FoxO3a pathway. The blue light-induced effect in cell proliferation was reversed by TRPV1 siRNA, but not capsazepine, a TRPV1-specific antagonist. In addition, blue light irradiation increased the production of reactive oxygen species (ROS) and tumor necrosis factor-α (TNF-α). Blue light irradiation also increased both phosphorylation levels of TRPV1 and calcium influx. The blue light-induced increase in production of ROS and TNF-α was reversed by capsazepine. Furthermore, the blue light-induced increase in production of TNF-α was attenuated by SP600125 or PDTC. These findings show that blue light regulates cell survival and production of ROS and TNF-α; its effects are mediated via TRPV1. Specifically, the effects of blue light on cell proliferation are mediated by upregulating TRPV1, a negative regulator of EGFR-FoxO3a signaling. Blue light-induced production of ROS and TNF-α is also mediated through increased calcium influx via TRPV1 activation. |
| Databáze: | OpenAIRE |
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