摘要
目的对链霉菌胞外多糖、灵芝多糖和米糠多糖体外抑制HIV gp41六股螺旋束核心结构的形成进行比较研究。方法采用作用于HIV gp41的HIV融合抑制剂的高通量筛选方法(夹心ELISA法)检测3种多糖对HIV gp41六股螺旋束核心结构形成的抑制作用。结果和结论链霉菌胞外能有效抑制HIV胞膜糖蛋白gp41六股α-螺旋束核心结构的形成,其半效抑制浓度(IC50)为(145.48±7.25)mg/L-1,而灵芝多糖和米糠多糖不具有这种抑制活性。
Objective To compare the in vitro inhibitory effect of expolysaccharides from Streptomyces, polysaccharides of Ganoderma lucidum and rice bran on six-α-helix bundle formation of HIV gp41 protein. Methods The amount of six-α-helix bundle formed in the presence of N36 and C34 was tested by ELISA in response to treatments with different doses of polysaccharides. Results Expolysaccharides from Streptomyces potentially inhibited six-α-helix bundle formation with the effective concentration (IC50) of 145.48±7.25 mg/L. Polysaccharides of Ganoderma lucidum and rice bran showed no effect on the six-α-helix bundle formation. Conclusions Expolysaccharides from Streptomyces can inhibit the six-α-helix bundle formation of HIV gp41, whereas polysaccharides of Ganoderma lucidum and rice bran do not exhibit such activity.
出处
《南方医科大学学报》
CAS
CSCD
北大核心
2007年第10期1498-1500,共3页
Journal of Southern Medical University
基金
国家自然科学基金(30500624)
广东省自然科学基金(05004726)
广州市科技计划项目(2006J1-C0401)
广东省科技项目(2005A3010104)~~
关键词
链霉菌胞外多糖
灵芝多糖
米糠多糖
HIV
gp41六股螺旋束
exopolysaccharides, Streptomyces
polysaccharides, Ganoderma lucidum
polysaccharides, rice bran
HIV gp41
作者简介
文晓芸(1979-),女,讲师,在读博士研究生,电话:020-61648536,E-mail:wenxy@fimmu.com
通讯作者:吴曙光(1953-),男,南方医科大学药学院院长,教授,博士生导师.电话:020-61648530