Antagomir dependent microRNA-205 reduction enhances adhesion ability of human corneal epithelial keratinocytes

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Abstract

Objective: To investigate the effect of microRNA-205 reduction by antagomirs on adhesion ability of normal human corneal epithelial keratinocytes (NHCEKs). Methods: Antagomir-205, complementary and inhibitory to microRNA-205, was used to suppress endogenous microRNA-205 in NHCEKs. The adhesion ability of treated NHCEKs was then assessed by cell adhesion assay. Immunoblot and immunohistochemistry were conducted to determine the level of two focal adhesion-related proteins, focal adhesion kinase (FAK) and paxillin (Pax). Phalloidin staining was performed to measure the level of filamentous actin in antagomir-treated NHCEKs. Results: Antagomir-205 markedly reduced the level of microRNA-205 in NHCEKs and significantly enhanced adhesion ability of NHCEKs (P<0.01). Further protein analysis validated that inhibition of microRNA-205 increased the number of phosphorylated FAK and phosphorylated Pax, and decreased filamentous actin. Conclusion: Our findings suggest that microRNA-205 has down-regulating effect on cell motility in NHCEKs.

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Li, J., Bai, H., Zhu, Y., Wang, X. Y., Wang, F., Zhang, J. W., … Yu, J. (2010). Antagomir dependent microRNA-205 reduction enhances adhesion ability of human corneal epithelial keratinocytes. Chinese Medical Sciences Journal, 25(2), 65–70. https://doi.org/10.1016/S1001-9294(10)60024-7

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