An immunotoxin is a human-made protein that consists of a targeting portion linked to a toxin. When the protein binds to that cell, it is taken in through endocytosis, and the toxin kills the cell. They are used for the treatment of some kinds of cancer and a few viral infections. ==Design== These chimeric proteins are usually made of a modified a...
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http://en.wikipedia.org/wiki/Immunotoxin
An antibody linked to a toxic substance. Some immunotoxins can bind to cancer cells and kill them.
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http://www.cancer.gov/dictionary?expand=I
<immunology> Any toxin that is conjugated to either an immunoglobulin or Fab fragment directed against a specified antigen. Thus if the antigen is borne by a particular type of cell, such as a tumour cell, the toxin may be targetted at the specified cell by the immunological reaction. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973
Immunotoxin: A hybrid molecule created by coupling an antibody or antigen with part or all of a toxin. The hybrid molecule combines the specificity of the antibody or antigen with the toxicity of the toxin. The possible targets of immunotoxins include cancer cells and cells containing HIV. The term 'immunotoxin' has come into media usage as, for ex...
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http://www.medterms.com/script/main/art.asp?articlekey=24417
a monoclonal antibody linked to a toxin with the intention of destroying a specific target cell while leaving adjacent cells intact.
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https://www.infoplease.com/dictionary/immunotoxin
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