Kim Hyun-Soon, Jeon Jae-Heung, Lee Kyung Jin, Ko Kisung
Plant Systems Engineering Research Center, KRIBB, 125 Gwahangno, Yuseong-gu, Daejeon 305-806, Republic of Korea.
Department of Medicine, College of Medicine, Chung-Ang University, Seoul 156-756, Republic of Korea.
Biomed Res Int. 2014;2014:249519. doi: 10.1155/2014/249519. Epub 2014 May 25.
Plants have been developed as an alternative system to mammalian cells for production of recombinant prophylactic or therapeutic proteins for human and animal use. Effective plant expression systems for recombinant proteins have been established with the optimal combination of gene expression regulatory elements and control of posttranslational processing of recombinant glycoproteins. In plant, virus-like particles (VLPs), viral "empty shells" which maintain the same structural characteristics of virions but are genome-free, are considered extremely promising as vaccine platforms and therapeutic delivery systems. Unlike microbial fermentation, plants are capable of carrying out N-glycosylation as a posttranslational modification of glycoproteins. Recent advances in the glycoengineering in plant allow human-like glycomodification and optimization of desired glycan structures for enhancing safety and functionality of recombinant pharmaceutical glycoproteins. In this review, the current plant-derived VLP approaches are focused, and N-glycosylation and its in planta modifications are discussed.
植物已被开发成为一种替代哺乳动物细胞的系统,用于生产供人类和动物使用的重组预防性或治疗性蛋白质。通过基因表达调控元件的最佳组合以及对重组糖蛋白翻译后加工的控制,已建立了有效的重组蛋白植物表达系统。在植物中,病毒样颗粒(VLPs),即维持病毒粒子相同结构特征但无基因组的病毒“空壳”,被认为是极具前景的疫苗平台和治疗性递送系统。与微生物发酵不同,植物能够进行N-糖基化,作为糖蛋白的翻译后修饰。植物糖基工程的最新进展允许进行类人糖基化修饰以及优化所需的聚糖结构,以提高重组药用糖蛋白的安全性和功能。在本综述中,重点介绍了当前基于植物的病毒样颗粒方法,并讨论了N-糖基化及其在植物中的修饰。