斯氏按蚊血淋巴在约氏疟原虫卵囊黑化时差异表达蛋白的SDS-PAGE分析  

SDS-PAGE analysis of differentially expressed proteins from Anopheles stephensi hemolymph produced during the Plasmodium yoelii oocysts melanization

作　　者：杨松[1] 黄复生[1] 况明书[1] 段建华[1] 

机构地区：[1]第三军医大学基础医学部病原生物学教研室,重庆400038

出　　处：《第三军医大学学报》2003年第8期683-686,共4页Journal of Third Military Medical University

基　　金：国家自然科学基金资助项目 ( 30 2 0 0 2 37)

摘　　要：目的　初步了解约氏疟原虫感染后的雌斯氏按蚊成蚊吸饲硝喹蔗糖水和蔗糖水后不同时间的血淋巴蛋白差异表达。方法　挤压法分别收集两组雌斯氏按蚊成蚊 1～ 5d的血淋巴 ,经SDS PAGE ,考马斯亮蓝和银染显色 ,Bio Rad10 0 0凝胶图像分析系统进行扫描和差异蛋白条带的自动化分析。结果　用药第 2天少数蚊卵囊开始部分黑化 ,第 5～9天黑化蚊及其黑化卵囊逐渐增多。用药后第 3天处理组蚊血淋巴蛋白条带数明显多于对照组 ,两组间存在较多差异蛋白带 ,主要集中在 ( 2 0～ 40 )× 10 3、( 60～ 80 )× 10 3和 13 0× 10 3处。银染比考马斯亮蓝染色出现的蛋白条带数多。结论　约氏疟原虫感染的雌斯氏按蚊成蚊吸饲硝喹糖水后其血淋巴蛋白表达有差异 。Objective To explore primarily the differentially expressed proteins in the hemolymph from adult female Anopheles stephensi ( An stephensi ) infected with Plasmodium yoelii ( P yoelii ) after being fed with sucrose solution containing nitroquine or not at different time points Methods Hemolymph of 2 groups of adult female An stephensi was collected with the expulsion method from the first day to the fifth day after the feeding Hemolymph samples were examined with SDS PAGE The protein gels were visualized by either Coomassie brilliant blue or silver staining, scanned and automatically analyzed by the BioRad1000 gel image analysis system for differential proteins bands Results On the second day of feeding with nitroquine, a few oocysts were partially melanized Furthermore, during the period from the fifth day to the ninth day, the number of mosquitoes with malanized oocysts and the number of melanized oocysts gradually increased The number of hemolymph protein binds in the treatment group was markedly more than that in the control Many different bands, mainly located at the molecular weight of (20～40)×10 3 and (60～80)×10 3, were visualized in the 2 groups The number of protein bands stained by the silver staining was more than that by the Coomassie brilliant blue staining Conclusion There are differentially expressed proteins in the hemolymph in An stephensi infected with P yoelii after being fed with sucrose solution containing nitroquine These differential proteins may be the melanization engaging proteins

关 键 词：差异蛋白分析 血淋巴 斯氏按蚊 约氏疟原虫 SDS-PAGE 

分 类 号：R382.31[医药卫生—医学寄生虫学] R384.1[医药卫生—基础医学]