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Trifloxystrobin induces tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-mediated apoptosis in HaCaT, human keratinocyte cells

Cited 5 time in Web of Science Cited 7 time in Scopus
Authors

Jang, Yoonjeong; Lee, Ah Young; Chang, Seung-Hee; Jeong, Sang-Hee; Park, Kyung-Hun; Paik, Min-Kyoung; Cho, Nam-Joon; Kim, Ji-Eun; Cho, Myung-Haing

Issue Date
2016-05
Publisher
Marcel Dekker Inc.
Citation
Drug and Chemical Toxicology, Vol.40 No.1, pp.67-73
Abstract
As the outermost layer of the body, the skin plays an important role in exposure to pesticides, which could have negative impacts on human health. Trifloxystrobin is a widely used fungicide of the strobilurin class, however, there is little information regarding the skin contact-associated toxic mechanism. Therefore, the present study was performed in order to identify the skin toxicity mechanism of trifloxystrobin using HaCaT (keratinocyte of human skin) cells. Following 24 or 48h treatment, cell viability, and subsequent Annexin V-FITC/propidium iodide assay, TUNEL assay and Western blotting were performed to investigate the cell death mechanism of trifloxystrobin. Exposure to trifloxystrobin resulted in diminished viability of HaCaT cells in both a time- and concentration-dependent manner. The cell death was derived through apoptotic pathways in the HaCaT cells. Furthermore, we explored the effect of trifloxystrobin on TRAIL-mediated extrinsic apoptosis using siRNA transfection. Knockdown of death receptor 5 suppressed trifloxystrobin-provoked apoptosis. These results indicate that trifloxystrobin induces TRAIL-mediated apoptosis and has an inhibitory effect in keratinocytes that can interfere with the barrier function and integrity of the skin. This could be proposed as a mechanism of skin toxicity by trifloxystrobin and considered in the management of pesticide exposure.
ISSN
0148-0545
URI
https://hdl.handle.net/10371/172366
DOI
https://doi.org/10.1080/01480545.2016.1174871
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