Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4264, USA.
FEBS J. 2011 Dec;278(23):4683-700. doi: 10.1111/j.1742-4658.2011.08182.x. Epub 2011 Jun 2.
Pseudomonas exotoxin A (PE) is a highly toxic protein secreted by the opportunistic pathogen Pseudomonas aeruginosa. The modular structure and corresponding mechanism of action of PE make it amenable to extensive modifications that can redirect its potent cytotoxicity from disease to a therapeutic function. In combination with a variety of artificial targeting elements, such as receptor ligands and antibody fragments, PE becomes a selective agent for the elimination of specific cell populations. This review summarizes our current understanding of PE, its intoxication pathway, and the ongoing efforts to convert this toxin into a treatment for cancer.
绿脓杆菌外毒素 A（PE）是一种由机会性病原体铜绿假单胞菌分泌的高度毒性蛋白。PE 的模块化结构和相应的作用机制使其易于进行广泛的修饰，从而将其强大的细胞毒性从疾病转移到治疗功能上。与各种人工靶向元件（如受体配体和抗体片段）结合使用时，PE 成为消除特定细胞群体的选择性试剂。本综述总结了我们目前对 PE 的认识，包括其毒素作用途径以及将这种毒素转化为癌症治疗方法的研究进展。
