Despommier D D
Division of Environmental Health Sciences and Department of Microbiology, Columbia University, 630 West 168th St, New York City, NY 10032, USA.
Parasitol Today. 1998 Aug;14(8):318-23. doi: 10.1016/s0169-4758(98)01287-3.
The nurse cell-parasite complex of Trichinella spiralis is unlike anything else in Nature. It is derived from a normal portion of striated skeletal muscle cell and develops in a matter of 15 to 20 days after the larva invades that cell type. What are the molecular mechanisms at work that result in this unique relationship? Here, Dickson Despommier presents a hypothesis to account for its formation, in which secreted tyvelosylated proteins of the larva play a central role. These proteins are always present in the intracellular niche of the larva from Day 7 after infection and may be responsible for redirecting host genomic expression, leading to nurse cell formation.
旋毛虫的滋养细胞-寄生虫复合体在自然界中独一无二。它源自横纹骨骼肌细胞的正常部分,在幼虫侵入该细胞类型后的15至20天内发育形成。导致这种独特关系的分子机制是什么?在此,迪克森·德斯波米尔提出了一个关于其形成的假说,其中幼虫分泌的酪氨酰化蛋白起着核心作用。从感染后第7天起,这些蛋白就一直存在于幼虫的细胞内微环境中,可能负责重定向宿主基因组表达,从而导致滋养细胞的形成。