Abstract: Disclosed are methods of enhancing immune responses. Such methods involve the administration of vaccine compositions to different tissues to elicit an enhanced immune response. The enhanced response arises from the vaccination and boosting route of administration in two separate patient tissues, for example, by first administering a priming vaccination into skin and later administering a boost vaccination in muscle. In each case, priming and boosting, the administration of the vaccine composition is preferably carried out using contemporaneous electroporation-assisted delivery of the antigenic agent.

Abstract: This invention provides a novel method of tissue electroporation that eliminates the need for electrodes that conduct electricity to the tissues. This invention creates electric currents and fields sufficient for porating cell membranes for improving the delivery of polynucleotides such as plasmid and linear DNA and RNA constructs, and polypeptides such as antigen protein constructs into mammalian eucaryotic cells purely by magnetic field pulses that does not require the use of contacting electrodes to conduct electric or ionic current. This invention thus provides a method for improving transfection and immunogenicity of pharmaceutical substances without direct contact with a living body, and may be called magnetopermeabilization. A concomitant aspect of the invention is the method by which a drug such as a solution containing DNA is delivered to a targeted tissue bed that is optimal in conjunction with magnetopermeabilization for maximal transgene expression and drug effect.