Anti-scarring effects of butaprost on human subconjunctival Tenon's fibroblasts

作     者：Jong Hoon Shin Je Hyun Seo Jae Ho Jung Tae Woo Kim 

作者机构：Department of OphthalmologyPusan National University Hospital Department of OphthalmologyPusan National University Yangsan Hospital Research Institute for Convergence of Biomedical Science and TechnologyPusan National University Yangsan Hospital Department of OphthalmologySeoul National University College of MedicineSeoul National University Bundang Hospital 

出 版 物：《International Journal of Ophthalmology(English edition)》 (国际眼科杂志（英文版）)

年 卷 期：2017年第10卷第7期

页      面：1028-1033页

核心收录：

学科分类：1002[医学-临床医学] 100212[医学-眼科学] 10[医学] 

基　　金：Supported by the Research Institute for Convergence of Biomedical Science and Technology Pusan National University Yangsan Hospital Korea(No.30-2013-009) 

主　　题：butaprost Tenon's capsule trabeculectomy fibroblasts 

摘      要：AIM： To investigate the toxicity of the E-prostanoid 2（EP2） receptor agonist, butaprost against human subconjunctival（Tenon＇s capsule） fibroblasts, and to determine the underlying mechanism. METHODS： We isolated Tenon＇s fibroblasts from the subconjunctival area of healthy subjects and evaluated the types of EP receptors expressed using quantitative realtime reverse transcription polymerase chain reaction（RTPCR）. The toxicity of butaprost against the fibroblasts was evaluated using methyl thiazolyl tetrazolium and lactic dehydrogenase assays. The inhibition of conjunctival fibroblast proliferation by butaprost was assessed by measuring α-actin levels. The underlying mechanism was assessed by measuring intracellular cyclic adenosine monophosphate（c AMP） levels. Intergroup differences were statistically analyzed using an independent t-test. Densitometry of the Western blot bands was performed using the Image J software. RESULTS： Quantitative real-time RT-PCR revealed that the fibroblast EP2 receptor levels were higher than those of the other EP receptors. Butaprost did not show toxicity against Tenon＇s tissue, but inhibited conjunctival fibroblast proliferation by reducing collagen synthesis. EP2 receptor activation enhanced the c AMP cascade, which might be an important mechanism underlying this ***： Butaprost effectively reduces the subconjunctival scarring response. Given the significanceof wound healing modulation in blebs, butaprost＇s inhibitory effect on subconjunctival Tenon＇s fibroblasts may be beneficial in managing postoperative scarring in glaucoma surgery.