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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Perfluorohexyloctane (F6H8) Induces Structural Modifications and Increases Apoptosis in Rat Primary Retinal Cultures
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Perfluorohexyloctane (F6H8) Induces Structural Modifications and Increases Apoptosis in Rat Primary Retinal Cultures

机译:全氟己基辛烷(F6H8)诱导大鼠原代视网膜培养物中的结构修饰并增加细胞凋亡。

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The effects of perfluorohexyloctane (F6H8), recently investigated as a long-term artificial vitreous substitute, were studied in vitro, with the use of rat retinal cultures seeded on microporous inserts that allow the cell layer to be in contact with the material to be tested, on the apical side, and with the nutrient medium, on the basal side. After 72 h of treatment with F6H8, retinal cultures lost the characteristic two-layered organization with glial cells at the bottom and neuronal cells on top of them. They appeared to be composed of only one layer of polyhedrical, flattened, and disconnected cells. TUNEL assay revealed an evident increase in the percentage of apoptotic cells in F6H8-treated cultures (30.1 +- 4.5), compared to control (10.3 +- 2.6) and perfluoroctane-treated cultures (10.1 +- 1.7). Immunolabeling of MAP-2, a protein of neuronal cytoskeleton, evidenced a marked loss of neurites. The results suggest that F6H8 is harmful to retinal cells in vitro and can therefore be potentially noxious to the retina as an artificial vitreous substitute.
机译:最近研究了全氟己基辛烷(F6H8)作为长期人工玻璃体替代物的作用,并使用接种在微孔插入物上的大鼠视网膜培养物使细胞层与待测材料接触,在顶端,营养培养基在根部。用F6H8处理72小时后,视网膜培养物失去了特征性的两层结构,其底部是神经胶质细胞,顶部是神经元细胞。它们似乎仅由一层多角形,扁平和不连续的单元组成。 TUNEL分析显示与对照(10.3±2.6)和全氟辛烷处理的培养物(10.1±1.7)相比,F6H8处理的培养物中(30.1±4.5)凋亡细胞的百分比明显增加。 MAP-2(一种神经元细胞骨架蛋白)的免疫标记显示神经突明显丢失。结果表明,F6H8在体外对视网膜细胞有害,因此作为人工玻璃体替代物可能对视网膜有害。

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