Carbon nanotube compositions and methods of use thereof
First Claim
1. An artificial antigen presenting cell composition comprising carbon nanotube bundles comprisingcarbon nanotubes attached covalently or non-covalently to one or more T cell receptor activators selected from the group consisting of CD3 antibodies or fragments thereof binding to CD3 or antigens bound to MHC molecules,wherein the carbon nanotubes are treated with acid prior to adsorption of the one or more T cell receptor activators.
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Accused Products
Abstract
Carbon nanotube (CNT)-based compositions for activating cellular immune responses are provided. The CNTs function as high surface area scaffolds for the attachment of T cell ligands and/or antigens. The CNT compositions function as artificial antigen-presenting cells (aAPCs) or as modular vaccines. The disclosed CNT aAPCs are efficient at activating T cells and may be used to activate T cells ex vivo or in vivo for adoptive or active immunotherapy.
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Citations
12 Claims
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1. An artificial antigen presenting cell composition comprising carbon nanotube bundles comprising
carbon nanotubes attached covalently or non-covalently to one or more T cell receptor activators selected from the group consisting of CD3 antibodies or fragments thereof binding to CD3 or antigens bound to MHC molecules, wherein the carbon nanotubes are treated with acid prior to adsorption of the one or more T cell receptor activators.
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8. A method for inducing an immune response comprising
isolating a population of T cells from a subject to be treated, activating the T cells with an artificial antigen presenting cell composition comprising carbon nanotube bundles comprising carbon nanotubes attached covalently or non-covalently to one or more T cell receptor activators selected from the group consisting of CD3 antibody or fragments thereof binding to CD3 or antigens bound to MHC molecules, wherein the carbon nanotubes are treated with acid prior to adsorption of the one or more T cell receptor activators, expanding the T cells, and administering the T cells to the subject to be treated in an amount effective to induce an immune response.
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10. A method for reducing an immune response comprising
isolating a population of CD4+CD45+ T cells from a subject to be treated, activating the CD4+CD45+ T cells with an artificial antigen presenting cell composition comprising carbon nanotube bundles comprising carbon nanotubes attached covalently or non-covalently to one or more T cell receptor activators selected from the group consisting of CD3 antibody or fragments thereof binding to CD3 or peptide or protein antigens bound to MHC molecules, expanding the CD4+CD45+ T cells, and administering the CD4+CD45+ T cells to the subject to be treated in an amount effective to eliminate or reduce the risk or delay the outset of conditions associated with undesirable activation, over-activation or inappropriate or aberrant activation of an immune response, wherein the carbon nanotubes are treated with acid prior to adsorption of the one or more T cell receptor activators.
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12. A method for activating T cells comprising administering to a subject in need thereof an effective dose of an artificial antigen presenting cell composition to induce an immune response, the artificial antigen presenting cell composition comprising carbon nanotube bundles comprising carbon nanotubes attached covalently or non-covalently to one or more T cell receptor activators selected from the group consisting of CD3 antibody or fragments thereof binding to CD3 or antigens bound to MHC molecules, wherein the carbon nanotubes are treated with acid prior to adsorption of the one or more T cell receptor activators.
Specification