The interaction between Lymphocyte function-associated antigen 1 (LFA-1) and intercellular-adhesion molecule-1 (ICAM-1) plays important roles in the cell-mediated immune response and inflammation associated with dry eye disease. LFA-1/ICAM-1 antagonists can be used for the treatment of dry eye disease, such as Lifitegrast which has been approved by the FDA in 2016 as a new drug for the treatment of dry eye disease. In this study, we designed and synthesized some new structure compounds that are analogues to Lifitegrast, and their biological activities were evaluated by in vitro cell-based assay and also by in vivo mouse dry eye model. Our results demonstrated that one of these analogues of Lifitegrast (compound 1b) showed good LFA-1/ICAM-1 antagonist activity in in vitro assay; meanwhile, it also significantly reduced ocular surface epithelial cells damage, increased goblet cell density in dry eye mouse and highly improved the symptoms of dry eye mouse.

淋巴细胞功能相关抗原 1 (LFA-1) 和细胞间粘附分子-1 (ICAM-1) 之间的相互作用在细胞介导的免疫反应和与干眼病相关的炎症中起重要作用。LFA-1/ICAM-1拮抗剂可用于治疗干眼病，如Lifitegrast于2016年被FDA批准为治疗干眼病的新药。在这项研究中，我们设计并合成了一些与 Lifitegrast 类似的新结构化合物，并通过体外细胞试验和体内小鼠干眼模型评估了它们的生物活性。我们的结果表明，其中一种 Lifitegrast 类似物（化合物1b) 在体外试验中显示出良好的 LFA-1/ICAM-1 拮抗剂活性；同时，显着降低干眼小鼠眼表上皮细胞损伤，增加杯状细胞密度，显着改善干眼小鼠症状。