Targeting vectors for intracellular immunisation

被引:70
作者
Persic, L
Righi, M
Roberts, A
Hoogenboom, HR
Cattaneo, A
Bradbury, A
机构
[1] SOC ITALIANA RIC SCI,I-00198 ROME,ITALY
[2] SCUOLA INT SUPER STUDI AVANZATI,I-34013 TRIESTE,ITALY
[3] CAMBRIDGE ANTIBODY TECHNOL,MELBOURNE SG6 8EH,ENGLAND
关键词
intracellular immunization; targeting signals; antibodies;
D O I
10.1016/S0378-1119(96)00627-0
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
We define intracellular immunization as the inhibition or inactivation of the function of a molecule by the ectopic intracellular expression of antibody binding domains which recognise the molecule. Such recombinant antibodies can be directed to different compartments of eukaryotic cells by means of previously defined targeting signals, thus permiting the study of any molecule in any cellular compartment for which an antibody is available. For this purpose, we have created a set of vectors based on the VHExpress vector described [Persic, L., Roberts, A., Wilton, J., Cattaneo, A., Bradbury, A. and Hoogenboom, H.R. (1997) An integrated vector system for the eukaryotic expression of antibodies or their fragments after selection from phage display libraries. Gene 187, 000-000], which has been modified to express scFvs (single chain fragments) linked to specific targeting signals. These permit the localisation of scFvs to different intracellular compartments: the endoplasmic reticulum (scFvE-er), the nucleus (scFvE-nuclear), the mitochondria (scFvE-mit), the cytoplasm (scFvE-cyto), and as secreted proteins (scFvE-sec). The function of these vectors has been assessed by the immunofluorescence of COS cells transiently transfected with constructs containing the alpha D11 scFv.
引用
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页码:1 / 8
页数:8
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