Induction of antigen-specific humoral tolerance by rAAV-mediated delivery of CTLA4-Ig-antigen fusion molecules

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There are many medical situations where immune suppression is required. Available methods lack specificity and risk infection, drug-related side-effects and cancer. We have discovered a novel way of suppressing immunity such that only unwanted responses are eliminated. This involves virus-mediated delivery of antigen fused to CTLA4-Ig. We plan to test this strategy in the context of gene therapy, to work out how it works and to optimise the approach. Success will have broad health implications.