Immunotherapy of cancer and infectious disease using...

A - Human Necessities – 61 – K

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A61K 39/385 (2006.01) A61K 35/12 (2006.01) A61K 35/14 (2006.01) A61K 38/19 (2006.01) A61K 39/00 (2006.01)

Patent

CA 2232002

The present invention relates to methods and compositions for enhancing immunological responses and for the prevention and treatment of infectious diseases or primary and metastatic neoplastic diseases based on the administration of macrophages and/or other antigen presenting cells (APC) sensitized with heat shock proteins non-covalently bound to peptide complexes and/or antigenic components. APC are incubated in the presence of hsp-peptide complexes and/or antigenic components in vitro. The sensitized cells are reinfused into the patient with or without treatment with cytokines including but not limited to interferon-.alpha., interferon-.alpha., interleukin-2, interleukin-4, interleukin-6 and tumor neurosis factor.

L'invention concerne des procédés et des compositions destinés à renforcer les réactions immunologiques et à prévenir ainsi qu'à traiter des maladies infectieuses ou des maladies néoplasiques à tumeurs primaires et métastasiques, basés sur l'administration de macrophages et/ou d'autres cellules de présentation d'antigène (APC) sensibilisés avec des protéines du choc thermique liées de façon non covalentes à des complexes peptidiques et/ou des composants antigéniques. On fait incuber les APC en présence de complexes de protéines du choc thermique-peptide et/ou de composants antigéniques in vitro. On procède à la reperfusion des cellules sensibilisées sur le patient, avec ou sans traitement des cytokines telles que, de façon non limitatitive, l'interféron-.alpha., l'interféron-.alpha., l'interleukine-2, l'interleukine-4, l'interleukine-6 et le facteur de nécrose tumorale.

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