高级检索
当前位置: 首页 > 详情页

4-HNE induces proinflammatory cytokines of human retinal pigment epithelial cells by promoting extracellular efflux of HSP70

文献详情

资源类型:
WOS体系:
Pubmed体系:

收录情况: ◇ SCIE

单位: [1]Huazhong Univ Sci & Technol, Tongji Hosp, Dept Ophthalomol, Wuhan 430030, Hubei, Peoples R China [2]Huazhong Univ Sci & Technol, Wuhan Med & Hlth Ctr Women & Children, Dept Eugen Genet Lab, Wuhan 430016, Hubei, Peoples R China [3]Wuhan Univ, Enshi Clin Coll, Cent Hosp Enshi Autonomous Prefecture, Ophthalm Ctr, Enshi 445000, Hubei, Peoples R China
出处:
ISSN:

关键词: 4-Hydroxynonenal HSP70 Retinal pigment epithelial cells Inflammation Age-related macular degeneration

摘要:
Oxidative stress and subsequent chronic inflammation result in dysfunction of the retinal pigment epithelium (RPE) and represent therapeutic targets in the context of age-related macular degeneration (AMD). However, molecular mechanisms that linked oxidative stress and inflammation still unclear. As an important byproduct of oxidative stress, 4-hydroxynonenal (4-HNE) induces apoptosis and lysosome dysregulation of RPE cells. In the present study, we evaluated cytokines production of RPE cells induced by 4-HNE by using cytokine array and confirmed that 4-HNE induced IL-6, IL-1 beta and TNF-alpha production in a concentration dependent manner. Specifically, 4-HNE also induced IL-10 and TGF-beta production in low concentration. Molecular analysis revealed that intracellular HSP70 inhibited 4-HNE-induced production of pro-inflammatory cytokines, and 4-HNE exerted proinflammatory effects in RPE cells by enhancing extracellular release of HSP70, as efflux inhibitor Methyl-beta-cyclodextrin (MBC) treatment significantly blocked the release of HSP70 and decreased IL-6 production of RPE cells induced by 4-HNE. Meanwhile, HSP70 inducer arimoclomol increased intracellular HSP70 production, but showed no influence on its extracellular level, also performed anti-inflammatory effects in 4-1-ME-stimulated RPE cells. Whereas the anti-inflammatory effects of paeoniflorin, an HSP70 inducer simultaneously promoted its extracellular efflux, was lower than arimoclomol. In addition, we further confirmed that MBC exhibited synergetic effect with both paeoniflorin and arimoclomol to inhibit the production of proinflammatory cytokines induced by 4-HNE. Taken together, these results indicate that HSP70 plays a vital role in regulating inflammation of RPE cells induced by oxidative stress and might be a potential novel target for clinical treatment of AMD.

基金:
语种:
被引次数:
WOS:
PubmedID:
中科院(CAS)分区:
出版当年[2018]版:
大类 | 3 区 医学
小类 | 2 区 眼科学
最新[2025]版:
大类 | 3 区 医学
小类 | 2 区 眼科学
JCR分区:
出版当年[2017]版:
Q1 OPHTHALMOLOGY
最新[2023]版:
Q1 OPHTHALMOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2017版] 出版当年五年平均 出版前一年[2016版] 出版后一年[2018版]

第一作者:
第一作者单位: [1]Huazhong Univ Sci & Technol, Tongji Hosp, Dept Ophthalomol, Wuhan 430030, Hubei, Peoples R China
通讯作者:
推荐引用方式(GB/T 7714):
APA:
MLA:

资源点击量:426 今日访问量:2 总访问量:410 更新日期:2025-04-01 建议使用谷歌、火狐浏览器 常见问题

版权所有:重庆聚合科技有限公司 渝ICP备12007440号-3 地址:重庆市两江新区泰山大道西段8号坤恩国际商务中心16层(401121)