Potentiation of Psoriasis-Like Inflammation by PCSK9.

Potentiation of Psoriasis-Like Inflammation by PCSK9.
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DOI:
10.1016/j.jid.2018.07.046
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发表时间:
2019-04
期刊:
The Journal of investigative dermatology
影响因子:
--
通讯作者:
Yuan R
Yuan R
中科院分区:
其他
文献类型:
--
作者:
Luan C;Chen X;Zhu Y;Osland JM;Gerber SD;Dodds M;Hu Y;Chen M;Yuan R

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银屑病是一种全身性炎症性疾病,与代谢紊乱有关,包括高水平的低密度脂蛋白。PCSK 9促进低密度脂蛋白受体的降解,因此,增加循环低密度脂蛋白的浓度,也参与炎症。本研究旨在研究PCSK 9在银屑病中的作用,并研究局部应用靶向Pcsk 9的小干扰RNA作为银屑病治疗的潜力。我们研究了PCSK9在银屑病患者皮损中的表达以及Pcsk9基因敲除和Pcsk9小干扰RNA治疗小鼠中咪喹莫特诱导的银屑病反应,我们还使用培养的人角质形成细胞来研究PCSK9在调节细胞增殖和凋亡中的作用。我们发现PCSK 9在银屑病皮损中过表达,抑制Pcsk 9可以减少咪喹莫特治疗诱导的炎症反应,抑制角质形成细胞的过度增殖。我们还发现抑制PCSK 9可以显着改变细胞周期并诱导人角质形成细胞凋亡。综上所述,我们的研究结果表明,PCSK 9在银屑病中起着重要作用,可能是一个治疗靶点。
Psoriasis is a systemic inflammatory disease, associated with metabolic disorders, including high level of low-density lipoprotein. PCSK9, which promotes the degradation of low-density lipoprotein receptors and, there-fore, the increased concentration of circulating low-density lipoprotein, is also involved in inflammation. This study aims to examine the role of PCSK9 in psoriasis and to investigate the potential of topically applying small interfering RNA targeting Pcsk9 as a psoriasis treatment. We investigated the expression of PCSK9 in lesions of psoriasis patients and imiquimod-induced psoriatic reactions in Pcsk9-knockout and Pcsk9 small interfering RNA-treated mice, and we also used cultured human keratinocytes to investigate the role of PCSK9 in regulating cell proliferation and apoptosis. We found that PCSK9 is overexpressed in psoriatic lesions and that suppressing Pcsk9 can decrease the inflammatory reaction induced by imiquimod treatment and inhibit hyperproliferation of keratinocytes. We also found that suppressing PCSK9 can significantly alter the cell cycle and induce apoptosis of human keratinocytes. Taken together, our findings indicate that PCSK9 plays an important role in psoriasis and may be a therapeutic target.
DOI: 10.18632/oncotarget.12371
发表时间: 2016-11-08
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影响因子: --
作者:
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