Method of potentiating an immune response

• US 5,075,109 A
• Filed: 03/18/1988
• Issued: 12/24/1991
• Est. Priority Date: 10/24/1986
• Status: Expired due to Term

• Current Assignee: Southwest Research Institute, UAB Research Foundation (University of Alabama System)
• Original Assignee: Southwest Research Institute, UAB Research Foundation (University of Alabama System)
• Inventors: Hollingshead, Melinda G., Shannon, William M., Tice, Thomas R., Eldridge, John H., Staas, Jay K., Gilley, Richard M.
• Primary Examiner(s): Lovering, Richard D.
• Application Number:
  US07/169,973
• Time in Patent Office: 1,376 Days
• Field of Search: 428/402.21, 428/402.24, 424/88, 424/439, 424/461, 424/499, 424/460, 424/89, 424/549, 514/885, 514/963
• US Class Current: 424/193.1
• CPC Class Codes: A61K 2039/541 Mucosal route
• CPC Class Codes: A61K 2039/545 characterised by the dose, timing or administration schedule
• CPC Class Codes: A61K 2039/55555 Liposomes; Vesicles, e.g. nanoparticles; Spheres, e.g. nanospheres; Polymers
• CPC Class Codes: A61K 31/216 of acids having aromatic rings, e.g. benactizyne, clofibrate
• CPC Class Codes: A61K 38/00 Medicinal preparations containing peptides peptides containing beta-lactam rings A61K31/00; cyclic dipeptides not having in their molecule any other peptide link than those which form their ring, e.g. piperazine-2,5-diones, A61K31/00; ergot alkaloids of the cyclic peptide type A61K31/48; containing macromolecular compounds having statistically distributed amino acid units A61K31/74; medicinal preparations containing antigens or antibodies A61K39/00; medicinal preparations characterised by the non-active ingredients, e.g. peptides as drug carriers, A61K47/00
• CPC Class Codes: A61K 39/085 Staphylococcus
• CPC Class Codes: A61K 39/12 Viral antigens
• CPC Class Codes: A61K 39/39 characterised by the immunostimulating additives, e.g. chemical adjuvants
• CPC Class Codes: A61K 9/1635 obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
• CPC Class Codes: A61K 9/1647 Polyesters, e.g. poly(lactide-co-glycolide)
• CPC Class Codes: A61P 37/02 Immunomodulators
• CPC Class Codes: A61P 37/04 Immunostimulants
• CPC Class Codes: C12N 2770/24134 Use of virus or viral component as vaccine, e.g. live-attenuated or inactivated virus, VLP, viral protein
• CPC Class Codes: Y02A 50/30 Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
• CPC Class Codes: Y10T 428/2985 Solid-walled microcapsule from synthetic polymer
• CPC Class Codes: Y10T 428/2989 Microcapsule with solid core [includes liposome]

Abstract

A method of delivering a bioactive agent to an animal entailing the steps of encapsulating effective amounts of the agent in a biocompatible excipient to form microcapsules having a size ranging from between approximately one micrometer to approximately ten micrometers and admnistering effective amounts of the microcapsules to the animal. A pulsatile response is obtained, as well as mucosal and systemic immuity. Related compositions are also provided.

Claims

1. A method of potentiating the immune response of an animal, comprising the step of parenterally administering to said animal a mixture of effective amounts of first biocompatible microcapsules having a size between approximately 1 micrometer and approximately 10 micrometers and containing a bioactive agent adn second biocompatible microcapsules containing a bioactive agent, said first microcapsules providing a primary immunological response and said second microcapsules releasing said agent contained in said second microcapsules ina pulsed manner to potentiate a subsequent immunological response, wherein said bioactive agent is selected from the group consisting of an antigen and an allergen.

2. The method of claim 1, wherein said second biocompatible microcapsules have a size greater than 10 micrometers.