Abstract：
:Two approaches to the antibody-directed targeting of toxic or cytolytic activity and augmentation of cellular immune responses have been explored for tumour immunotherapy, but so far success has been limited. Obstacles facing immunotherapy are the limited accessibility of antibodies or antibody conjugates to solid tumours and the difficulty in obtaining tumour-specific cytotoxic lymphocytes. Here we generate a new class of tumour-specific killer cells by genetically modifying lymphocytes to produce and secrete a targeted toxin against an oncoprotein overexpressed on breast and other tumour cells. The transduced lymphocytes were shown to have potent and selective cytotoxicity to tumours in culture and nude mouse models. The potent in vivo antitumour activity is probably a result of the migration of the lymphocytes to tumours as a targeted toxin carrier, and production and accumulation of the targeted toxins inside tumours as a producer. Our approach, which has features of both antibody-directed and cell-mediated immunotherapy, may have application in a gene therapy context.
journal_name
Naturejournal_title
Natureauthors
Chen SY,Yang AG,Chen JD,Kute T,King CR,Collier J,Cong Y,Yao C,Huang XFdoi
10.1038/385078a0subject
Has Abstractpub_date
1997-01-02 00:00:00pages
78-80issue
6611eissn
0028-0836issn
1476-4687journal_volume
385pub_type
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