Highly specific antibodies (affinity-purified or hybridoma) directed against cell surface immunoglobulins on normal or neoplastic murine B lymphocytes were covalently coupled to the A chain of the plant toxin ricin. Such conjugates containing antibodies specific for IgM, for either of the two allotypes of IgD, or for the idiotype of the B cell tumor BCL 1 rapidly bound in vitro to cells expressing the corresponding surface antigen and inhibited protein synthesis in such cells. The results demonstrate that A chain-coupled anti-idiotype antibody may be useful as a tumor-specific cytotoxic agent.
|Original language||English (US)|
|Number of pages||5|
|Journal||Proceedings of the National Academy of Sciences of the United States of America|
|Issue number||9 II|
|Publication status||Published - Dec 1 1980|
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