确定感染猫白血病病毒所需的细胞辅因子
M M Anderson1, A S Lauring, C C Burns
1Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
Science (New York, N.Y.)
|March 10, 2000
概括
猫类白血病病毒 (FeLV) 需要两个细胞蛋白,Pit1和FeLIX,以感染. FeLIX是一种新型进入因子,可以是可溶性或跨膜,促进FeLV进入宿主细胞.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 逆转录病毒感染导致遗传变异,有利于更适合的病毒菌株.
- 诱导免疫缺陷的逆转录病毒的发病包括T细胞热带性,细胞病变的变体.
研究的目的:
- 调查免疫缺陷诱导的T细胞热带猫类白血病病毒 (FeLV) 的共同受体要求.
- 为了识别和描述FeLV进入所必需的新型细胞因子.
主要方法:
- 关于FeLV进化的遗传分析.
- 使用共免疫沉和功能测试识别细胞受体.
- 鉴定共受体在病毒进入中的作用的特征.
主要成果:
- 为了进入细胞,FeLV需要Pit1受体和第二个因子FeLIX.
- FeLIX是一种内源性表达的蛋白质,与FeLV外的一部分相同.
- 费利克斯 (FeLIX) 作为一种跨膜或可溶性蛋白质来介导FeLV感染.
结论:
- FeLV已经发展出复杂的进入机制,需要多个细胞因子.
- FeLIX代表了一种新型的病毒进入媒介类别,对理解逆转录病毒热带和病变产生有意义.
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