Microparticle delivery system

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/58 (2006.01) A61K 9/00 (2006.01) A61K 9/16 (2006.01) A61K 9/50 (2006.01) A61K 47/36 (2006.01) A61K 47/48 (2006.01) C07K 17/10 (2006.01) C12N 11/10 (2006.01) A61K 39/00 (2006.01)

Patent

CA 2190591

A particulate carrier for an agent comprising a solid core of a polysaccharide and a proteinaceous material and an organometallic polymer bonded to the core is provided. The agent has a biological activity, such as immunogenicity, and may comprise the proteinaceous material or be a separate component of the core. Polysaccharide cores include dextran, starch, cellulose and derivatives thereof and the organometallic polymer includes silicones including substituted silicones. The particulate carriers are useful for delivering agents to the immune system of a subject by mucosal or parenteral administration to produce immune responses, including antibody responses.

L'invention concerne un excipient particulaire destiné à un agent comprenant un noyau solide d'un polysaccharide et une matière protéique, ainsi qu'un polymère organométallique lié au noyau. Cet agent présente une activité biologique, par exemple une immunogénicité, et peut comprendre la matière protéique ou être un constituant séparé du noyau. Les noyaux de polysaccharide comprennent le dextrane, l'amidon, la cellulose et ses dérivés. Le polymère organométallique comprend les silicones, y compris les silicones substituées. Ces excipients particulaires sont utiles pour la libération d'agents vers le système immunitaire d'un sujet, par les muqueuses ou par voie parentérale, dans le but de provoquer des réponses immunitaires, y compris la production d'anticorps.

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