Actin-binding protein filamin A is displayed on the surface of human neuroblastoma cells

被引:21
作者
Bachmann, Andre S. [1 ]
Howard, James P. [1 ]
Vogel, Carl-Wilhelm [1 ]
机构
[1] Univ Hawaii Manoa, Canc Res Ctr Hawaii, Honolulu, HI 96813 USA
来源
CANCER SCIENCE | 2006年 / 97卷 / 12期
关键词
D O I
10.1111/j.1349-7006.2006.00327.x
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
We previously reported the identification of natural human IgM antibodies, which recognize a M-r 260 000 surface protein (NB-p260) and induce both complement-mediated cytotoxicity and apoptosis of human neuroblastoma cells. NB-p260 was shown to belong to the family of filamin proteins. Filamin A is a high molecular weight actin-binding protein, previously thought to be only located intracellularly. Here we show that NB cells as well as three NB-unrelated human cell lines express filamin A also on the cell surface. Our findings suggest new biological functions for filamins, including a role as mediators in anti-NB IgM-induced apoptosis, and they add to the growing body of evidence of the interaction of cytoskeletal proteins with the extracellular matrix.
引用
收藏
页码:1359 / 1365
页数:7
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