KMID : 0032220220340030163
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Annals of Dermatology 2022 Volume.34 No. 3 p.163 ~ p.172
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Effects of <10-¥ìm Particulate Matter on Cultured Human Sebocytes and Outer Root Sheath Cells and Usefulness of Siegesbeckia Herba Extract
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Kwack Mi-Hee
Ha Nam-Gyoung Lee Weon-Ju
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Abstract
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Background: Particulate matter (PM) is one of the air pollutants that can damage human skin; the recent increase in the amount of PM may be detrimental to skin health.
Objective: We aimed to investigate the effects of PM on cultured human sebocytes and outer root sheath (ORS) cells and the effects of Siegesbeckia Herba extract (SHE) on PM-treated cultured cells.
Methods: Sebocytes and ORS cells were cultured. The cultured cells were treated with various concentrations of PM of <10 ¥ìm in size (PM10) (10 ¥ìg/ml, 25 ¥ìg/ml, 50 ¥ìg/ml, and 100 ¥ìg/ml) for 24 h. Real-time polymerase chain reaction, measurement of reactive oxygen species (ROS), small interfering (si) RNA transfection, Oil Red O and Nile red staining, and immunofluorescence staining were performed to analyze the presence of inflammatory cytokines, matrix metalloproteinases (MMPs), aryl hydrocarbon receptor (AhR), nuclear factor kappa-light-chain-enhancer of activated B cells (NF-¥êB), ROS, and lipid production. In addition, PM10 (100 ¥ìg/ml)-treated cultured cells were treated with 10 mg/ml of SHE.
Results: PM10 upregulates the expression of inflammatory cytokines, MMPs, AhR, NF-¥êB, and ROS in cultured human sebocytes and ORS cells. The production of ROS was dramatically reduced in AhR siRNA-transfected cells. In addition, PM10 upregulates sebum production in cultured sebocytes. SHE inhibited the upregulation of inflammatory cytokines, MMPs, AhR, NF-¥êB, ROS, and sebum production in cultured human sebocytes and/or ORS cells by PM10.
Conclusion: Effects of PM10 on cultured human sebocytes and ORS cells can be regulated by SH.
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KEYWORD
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Outer root sheath cells, Particulate matter, Sebocytes, Siegesbeckia Herba extract
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