1. Synthesis of taurine–fluorescein conjugate and evaluation of its retina-targeted efficiency in vitro
- Author
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Meihong Huang, Jiaqi Song, Bingzheng Lu, Huizhi Huang, Yizhen Chen, Wei Yin, Wenbo Zhu, Xinwen Su, Chuanbin Wu, and Haiyan Hu
- Subjects
Taurine ,Taurine–fluorescein conjugate ,Retina-targeting ,ARPE-19 ,hRMECs ,Transepithelial permeability ,Therapeutics. Pharmacology ,RM1-950 - Abstract
In this work, retinal penetration of fluorescein was achieved in vitro by covalent attachment of taurine to fluorescein, yielding the F–Tau conjugate. Nuclear magnetic resonance (NMR) and high resolution mass spectrometry (HRMS) were used to confirm the successful synthesis of F–Tau. The cellular uptake of F–Tau in adult retinal pigment epithelial cells (ARPE-19) and human retinal microvascular endothelial cells (hRMECs) was visualized via confocal scanning microscopy. The results indicated an improvement of solubility and a reduction of logP of F–Tau compared with fluorescein. As compared with fluorescein, F–Tau showed little toxicity, and was retained longer by cells in uptake experiments. F–Tau also displayed higher transepithelial permeabilities than fluorescein in ARPE-19 and hRMECs monolayer cells (P
- Published
- 2014
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