霍乱弧菌的致病性与流行性研究进展

被引:19
作者
王洪敏
马文丽
郑文岭
机构
[1] 第一军医大学分子生物学研究所
[2] 广州军区广州总医院 广州
[3] 广州
[4] 广州军区肿瘤分子生物学研究所
关键词
霍乱弧菌; 致病性; 流行性;
D O I
暂无
中图分类号
R378.3 [弧菌];
学科分类号
100103 ; 100705 ;
摘要
综述了近年来霍乱弧菌的致病性和流行性的研究进展 ,并讨论了流行性和致病性的关系 .编码霍乱毒素CT的基因ctxAB并不是霍乱弧菌基因组自身的成分 ,而是CTXΦ噬菌体基因组的一部分 .CTXΦ能特异性地感染并整合至霍乱弧菌的基因组 ,成为CTX原噬菌体 ;携带有CTX原噬菌体的霍乱弧菌在环境因素的诱导下 ,也能向外界分泌CTXΦ噬菌体 .RS1基因元件与CTX基因元件在染色体位置上紧邻 ,它们在功能上也紧密相关 ,RS1元件能利用CTXΦ的基因形成一个丝状噬菌体RS1Φ ,并能向细胞外分泌 ,进行水平传播 ;VPI来源于VPIΦ ,VPIΦ能在霍乱弧菌的菌株之间传播 ;VPI是霍乱弧菌获得CTX基因元件的桥梁 .最近 ,又发现了两个与霍乱大流行相关的两个基因区域 ,VSP Ⅰ和VSP Ⅱ .
引用
收藏
页码:38 / 42
页数:5
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