| Title |
NB-UVB irradiation downregulates keratin-17 expression in keratinocytes by inhibiting the ERK1/2 and STAT3 signaling pathways
|
|---|---|
| Published in |
Archives of Dermatological Research, January 2018
|
| DOI | 10.1007/s00403-018-1812-1 |
| Pubmed ID | |
| Authors |
Yuchen Zhuang, Changxu Han, Bing Li, Liang Jin, Erle Dang, Hui Fang, Hongjiang Qiao, Gang Wang |
| Abstract |
Keratin-17 (K17) is a cytoskeletal protein produced by keratinocytes (KCs), which is overexpressed in psoriasis and may play a pivotal role in its pathogenesis. Narrow-band ultraviolet B (NB-UVB) irradiation is used as a general treatment for psoriasis, although its impact on K17 expression has yet to be determined. In this study, we aimed to investigate the effect of NB-UVB irradiation on K17 expression and its signaling pathways. After exposure to NB-UVB irradiation, immortalized human keratinocytes (HaCaT cells) were analyzed by flow cytometry, CCK-8 assays and transmission electron microscopy to examine proliferation. Meanwhile, K17 expression in primary human epithelial keratinocytes was detected by quantitative real-time polymerase chain reaction (qRT-PCR), western blot analysis and immunofluorescence. HaCaT cells pre-incubated with PD-98059 and piceatannol were subjected to western blot analysis to examine ERK1/2 and STAT3 phosphorylation. The ears of mice treated with imiquimod (IMQ) and irradiated by NB-UVB were taken to examine K17 expression by qRT-PCR, western blot analysis, and immunofluorescence. Our results showed that 400 mJ/cm2 of NB-UVB irradiation was the maximum tolerable dose for HaCaT cells and could cause inhibited HaCaT cell proliferation and moderate increase of the early apoptosis. Furthermore, NB-UVB irradiation could downregulate K17 expression by inhibiting the ERK1/2 and STAT3 signaling pathways. In experiments conducted in vivo, NB-UVB irradiation with doses of MED or higher could eliminate the IMQ-induced psoriasis-like dermatitis and inhibit K17 expression. These results indicated that NB-UVB irradiation may eliminate chronic psoriatic plaques by suppressing K17 expression via the ERK1/2 and STAT3 signaling pathways. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Science communicators (journalists, bloggers, editors) | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 22 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 22 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 4 | 18% |
| Other | 3 | 14% |
| Student > Master | 3 | 14% |
| Student > Ph. D. Student | 2 | 9% |
| Unspecified | 1 | 5% |
| Other | 4 | 18% |
| Unknown | 5 | 23% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 7 | 32% |
| Agricultural and Biological Sciences | 3 | 14% |
| Pharmacology, Toxicology and Pharmaceutical Science | 2 | 9% |
| Biochemistry, Genetics and Molecular Biology | 1 | 5% |
| Unspecified | 1 | 5% |
| Other | 1 | 5% |
| Unknown | 7 | 32% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 26 January 2018.
All research outputs
#18,584,192
of 23,018,998 outputs
Outputs from Archives of Dermatological Research
#1,099
of 1,328 outputs
Outputs of similar age
#330,845
of 441,924 outputs
Outputs of similar age from Archives of Dermatological Research
#4
of 7 outputs
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