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人工粘蛋白样糖聚合物的生物相容性分析。

The Biocompatibility Analysis of Artificial Mucin-Like Glycopolymers.

机构信息

Department of Ophthalmology, University Medical Center Rostock, 18057 Rostock, Germany.

Biofunctionalized Materials and (Glyco) Biotechnology, Fraunhofer Institute for Applied Polymer Research IAP, 14476 Potsdam, Germany.

出版信息

Int J Mol Sci. 2023 Sep 15;24(18):14150. doi: 10.3390/ijms241814150.

Abstract

The ocular surface is covered by a tear film consisting of an aqueous/mucin phase and a superficial lipid layer. Mucins, highly -glycosylated proteins, are responsible for lubrication and ocular surface protection. Due to contact lens wear or eye disorders, lubrication of the ocular surface can be affected. Artificial glycopolymers which mimic natural mucins could be efficient in ophthalmic therapy. Various neutral, positively, and negatively charged mucin-mimicking glycopolymers were synthesized (n = 11), cultured in different concentrations (1%, 0.1%, and 0.01% /) with human corneal epithelial cells (HCE), and analyzed by various cytotoxicity/viability, morphology, and immunohistochemistry (IHC) assays. Six of the eleven glycopolymers were selected for further analysis after cytotoxicity/viability assays. We showed that the six selected glycopolymers had no cytotoxic effect on HCE cells in the 0.01% / concentration. They did not negatively affect cell viability and displayed both morphology and characteristic markers as untreated control cells. These polymers could be used in the future as mucin-mimicking semi-synthetic materials for lubrication and protection of the ocular surface.

摘要

眼表面由泪膜覆盖,泪膜由水/粘蛋白相和浅层脂质层组成。粘蛋白是高度糖基化的蛋白质,负责润滑和保护眼表面。由于隐形眼镜佩戴或眼部疾病,眼表面的润滑可能会受到影响。模仿天然粘蛋白的人工糖聚合物在眼科治疗中可能会很有效。我们合成了各种中性、正电荷和负电荷的粘蛋白模拟糖聚合物(n = 11),以不同浓度(1%、0.1%和 0.01%/)与人角膜上皮细胞(HCE)共培养,并通过各种细胞毒性/活力、形态和免疫组织化学(IHC)分析进行了分析。在细胞毒性/活力分析后,我们从 11 种糖聚合物中选择了其中 6 种进行进一步分析。我们表明,这 6 种选定的糖聚合物在 0.01%/浓度下对 HCE 细胞没有细胞毒性作用。它们不会对细胞活力产生负面影响,并显示出与未经处理的对照细胞相同的形态和特征标志物。这些聚合物将来可以用作模仿粘蛋白的半合成材料,用于润滑和保护眼表面。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e55d/10532372/84123ff7016f/ijms-24-14150-g001.jpg

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