| 摘要 |
The present invention provides a novel approach to vaccination and/or treatment using encapsulated cells for eliciting immune responses. More specifically, the present invention is to provide a method or process for inducing an immune response in a host, wherein the process comprises the steps of: enclosing genetically engineered antigen-producing cells comprising one or more transgene, into an immunoisolating implantable device to provide encapsulated antigen-producing cells; introducing the encapsulated antigen-producing cells in the host; production of the transgene antigen product; bi-directional passage of the produced antigen product through the pores of the microcapsules, with preclusion of the passage of the antigen-producing cells therethrough; delivery of a continuous infusion of antigen to the host; activation of the immune system in response to the antigen. The present invention additionally provides a method of vaccinating or immunizing a host, a vaccine against a transgene antigen, and the use of immunoisolating implantable devices comprising genetically engineered antigen-producing cells.
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