选择性蓝紫光过滤镜片对 A2E 负载视网膜色素上皮细胞日光诱导细胞损伤的预防作用

IF 6 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Antioxidants Pub Date : 2024-10-01 DOI:10.3390/antiox13101195
Coralie Barrau, Mélanie Marie, Camille Ehrismann, Pauline Gondouin, José-Alain Sahel, Thierry Villette, Serge Picaud
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引用次数: 0

摘要

蓝光会加速视网膜老化。先前的研究表明,波长在 400 到 455 纳米之间的光线对老化的视网膜色素上皮(RPE)危害最大。本研究探讨了过滤这些波长是否能保护暴露在宽广阳光下的细胞。将负载 20 µM A2E 的原代猪 RPE 细胞暴露在通过眼部介质过滤的 1.8 mW/cm2 的模拟阳光下 18 小时。细胞损伤通过细胞凋亡、过氧化氢(H2O2)产生和线粒体膜电位(MMP)进行测量。与黑暗相比,阳光照射使细胞凋亡增加了 2.7 倍,H2O2 增加了 4.8 倍,MMP 减少了一半。Eye Protect SystemTM(EPS)技术能过滤掉 25% 波长超过 400-455 纳米的光线,使细胞凋亡减少 44%,H2O2 减少 29%。多层光学膜(MOF)过滤了 80% 的光线,减少了 91% 的细胞凋亡和 69% 的 H2O2,增加了 73% 的 MMP,超过了深黄色滤光片。光保护作用几乎随着蓝紫光过滤(400-455 纳米)的增加而线性增加,但并不随着全蓝光过滤(400-500 纳米)的增加而线性增加。选择性滤光片可滤除 25% (EPS)至 80% (MOF)的蓝紫光,在不影响感知或非视觉功能的情况下提供了实质性的保护,使其在预防光引起的视网膜损伤方面大有可为,并且在美学上可接受永久佩戴。
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Prevention of Sunlight-Induced Cell Damage by Selective Blue-Violet-Light-Filtering Lenses in A2E-Loaded Retinal Pigment Epithelial Cells.

Blue light accelerates retinal aging. Previous studies have indicated that wavelengths between 400 and 455 nm are most harmful to aging retinal pigment epithelia (RPE). This study explored whether filtering these wavelengths can protect cells exposed to broad sunlight. Primary porcine RPE cells loaded with 20 µM A2E were exposed to emulated sunlight filtered through eye media at 1.8 mW/cm2 for 18 h. Filters selectively filtering out light over 400-455 nm and a dark-yellow filter were interposed. Cell damage was measured by apoptosis, hydrogen peroxide (H2O2) production, and mitochondrial membrane potential (MMP). Sunlight exposure increased apoptosis by 2.7-fold and H2O2 by 4.8-fold, and halved MMP compared to darkness. Eye Protect SystemTM (EPS) technology, filtering out 25% of wavelengths over 400-455 nm, reduced apoptosis by 44% and H2O2 by 29%. The Multilayer Optical Film (MOF), at 80% of light filtered, reduced apoptosis by 91% and H2O2 by 69%, and increased MMP by 73%, overpassing the dark-yellow filter. Photoprotection increased almost linearly with blue-violet light filtering (400-455 nm) but not with total blue filtering (400-500 nm). Selective filters filtering out 25% (EPS) to 80% (MOF) of blue-violet light offer substantial protection without affecting perception or non-visual functions, making them promising for preventing light-induced retinal damage with aesthetic acceptance for permanent wear.

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来源期刊
Antioxidants
Antioxidants Biochemistry, Genetics and Molecular Biology-Physiology
CiteScore
10.60
自引率
11.40%
发文量
2123
审稿时长
16.3 days
期刊介绍: Antioxidants (ISSN 2076-3921), provides an advanced forum for studies related to the science and technology of antioxidants. It publishes research papers, reviews and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation or experimental procedure, if unable to be published in a normal way, can be deposited as supplementary electronic material.
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