Potentiation of TNF-alpha toxicity by conjugation with ricin A-chain.
Hybrid toxins containing a cytokine moiety have been used effectively to selectively kill cells expressing the complementary cytokine receptor both in vivo and in vitro. To date all cytokines incorporated into hybrid toxins, e.g. interleukin 2 are biologically active as monomers, so attachment of a toxin group causes minimal interference with the cytokine structure. By contrast, the pro-inflammatory and anti-cancer cytokine tumour necrosis factor alpha (TNF-alpha) is biologically active as a ...Expand abstract
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