Delivery of immunogenic molecules vis HBsAg particles

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Conjugate or complex

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C424S227100, C424S189100, C424S085100, C514S002600, C514S04400A

Reexamination Certificate

active

07029680

ABSTRACT:
Compositions of HBsAg particles having biologically active molecules contained in the particles, and methods of their use, e.g. in stimulating enhanced immune responses, are described. Antigenic peptides contained in HBsAg particles were found to produce a CTL response where none was elicited by the peptide alone. Encapsulation of immunostimulating molecules, such as cytokines, greatly enhanced the CTL response evoked by the HBsAg particles themselves.

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