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MPC Polymer Promotes Recovery from Dry Eye via Stabilization of the Ocular Surface

机译:MPC聚合物通过眼表面的稳定化促进从干眼中恢复

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摘要

The polymer that includes 2-methacryloyloxy ethyl phosphorylcholine (MPC) is well-known as an effectively hydrating multifunction agent. In this study, we prepared an MPC polymer (MPCP) using radical polymerization with co-monomers—MPC/Stearyl Methacrylate/N,N-dimethylacrylamide—and evaluated the MPCP’s usefulness for dry eye treatment using a rabbit model treated with N-acetylcysteine. The MPCP particle size was 50–250 nm, and the form was similar to that of micelles. The MPCP viscosity (approximately 0.95 mPa·s) was 1.17-fold that of purified water, and a decrease in the transepithelial electrical resistance value (corneal damage) was not observed in the immortalized human corneal epithelial cell line HCE-T cell (HCE-T cell layer). The MPCP enhanced the water maintenance on the cornea, and the instillation of MPCP increased the lacrimal fluid volume and prolonged the tear film breakup time without an increase in total mucin contents in the lacrimal fluid of the normal rabbits. The therapeutic potential of the MPCP for dry eye was evaluated using an N-acetylcysteine-treated rabbit model, and, in our investigation, we found that MPCP enhanced the volume of lacrimal fluid and promoted an improvement in the tear film breakup levels. These findings regarding the creation and characteristics of a novel MPCP will provide relevant information for designing further studies to develop a treatment for dry eyes.
机译:包含2-甲基丙烯酰氧基乙基磷藻(MPC)的聚合物是有效保湿的多功能剂的众所周知的。在该研究中,我们使用与共聚单体-MPC /硬脂酰基/ N,N-二甲基丙烯酰胺 - 并评价使用用N-乙酰半胱氨酸处理的兔模型评价MPCP对干眼处理的有用性的基础聚合物。 MPCP粒径为50-250nm,形式类似于胶束的形式。 MPCP粘度(约0.95MPa·s)为1.17倍的纯净水,在永生化的人角膜上皮细胞系HCE-T细胞中未观察到Transepearial电阻值(角膜损伤)的降低(HCE- T细胞层)。 MPCP增强了角膜的水维持,MPCP的滴注增加了泪液体积,延长了常规兔泪流体中的总粘膜含量的总粘膜含量的增加而延长了泪膜破碎时间。使用N-乙酰半胱氨酸处理的兔模型评估MPCP用于干眼的治疗潜力,并且在我们的研究中,发现MPCP增强了泪液的体积,并促进了撕裂膜分离水平的改善。这些关于新MPCP的创造和特征的调查结果将提供有关设计进一步研究以开发干燥眼睛治疗的相关信息。

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