Method for preparing antigen-specific cytotoxic T-cells by using activated B-cells and use thereof
First Claim
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1. A method of producing antigen-specific cytotoxic T cells, comprising the steps of:
- providing human peripheral blood mononuclear cells;
separating the peripheral blood mononuclear cells into B cells and other mononuclear cells;
treating the B cells with any one of biological response modifiers selected from the group consisting of alpha-galactosylceramide, alpha-glucuronosylceramide, phosphatidylinositol tetramannoside, isoglobotrihexylceramide, ganglioside GD3, phosphatidylcholine, beta-galactosylceramide, lipophosphoglycan, glycoinositol phospholipid, alpha-galactosylceramide analogs, including beta-anomer galactosylceramide and alpha-anomer galactosylceramide to produce activated B cells;
introducing into the activated B cells an antigen polypeptide or a DNA encoding an antigen to produce activated B cells loaded with an antigen;
mixing a first batch of the antigen-loaded activated B cells and the other mononuclear cells separated from the peripheral blood mononuclear cells to produce a first mixture of the cells;
subjecting the first mixture of the cells to a first incubation;
adding a second batch of the antigen-loaded activated B cells to the first mixture of the cells after the first incubation to produce a second mixture; and
subjecting the second mixture to a second incubation,wherein a cytokine is added only during the second incubation step and wherein the antigen-specific cytotoxic T cells are generated during the first and the second incubation steps.
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Abstract
Disclosed in the present application are: a method for preparing in vitro/ex vivo antigen-specific cytotoxic T-cells by using B cells treated with biological response modifier; and a use thereof. The cytotoxic T-cells prepared by the method of the present application can be used advantageously for treating infectious disease and cancer and the like.
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14 Claims
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1. A method of producing antigen-specific cytotoxic T cells, comprising the steps of:
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providing human peripheral blood mononuclear cells; separating the peripheral blood mononuclear cells into B cells and other mononuclear cells; treating the B cells with any one of biological response modifiers selected from the group consisting of alpha-galactosylceramide, alpha-glucuronosylceramide, phosphatidylinositol tetramannoside, isoglobotrihexylceramide, ganglioside GD3, phosphatidylcholine, beta-galactosylceramide, lipophosphoglycan, glycoinositol phospholipid, alpha-galactosylceramide analogs, including beta-anomer galactosylceramide and alpha-anomer galactosylceramide to produce activated B cells; introducing into the activated B cells an antigen polypeptide or a DNA encoding an antigen to produce activated B cells loaded with an antigen; mixing a first batch of the antigen-loaded activated B cells and the other mononuclear cells separated from the peripheral blood mononuclear cells to produce a first mixture of the cells; subjecting the first mixture of the cells to a first incubation; adding a second batch of the antigen-loaded activated B cells to the first mixture of the cells after the first incubation to produce a second mixture; and subjecting the second mixture to a second incubation, wherein a cytokine is added only during the second incubation step and wherein the antigen-specific cytotoxic T cells are generated during the first and the second incubation steps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification