Method of inducing a CTL response
First Claim
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1. A method of obtaining a sustained CTL response in a mammal, which method comprises:
- delivering an antigen directly to a lymph node or a lymph vessel of the mammal at a level sufficient to induce an antigen-specific CTL response in the mammal; and
maintaining the antigen in the mammal'"'"'s lymphatic system over time sufficient to sustain the antigen-specific CTL response.
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Abstract
A method of inducing a cytotoxic T-lymphocyte (CTL) response to an antigen is disclosed. The method involves delivering the antigen to the lymphatic system of an animal regularly over a sustained period of time using, e.g., an osmotic pump. The method is advantageous over prior art methods for inducing a CTL response in that it does not require repetitive immunizations or the use of adjuvants. The method of the present invention can be used for the induction of CTLs in tumor or infectious disease immunotherapy.
145 Citations
20 Claims
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1. A method of obtaining a sustained CTL response in a mammal, which method comprises:
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delivering an antigen directly to a lymph node or a lymph vessel of the mammal at a level sufficient to induce an antigen-specific CTL response in the mammal; and maintaining the antigen in the mammal'"'"'s lymphatic system over time sufficient to sustain the antigen-specific CTL response. - View Dependent Claims (2, 3, 4, 5, 6)
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7. The method of claim in 1, wherein the antigen is a diseased matched antigen.
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8. A method of obtaining a sustained effector CTL response in a mammal, which method comprises:
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selecting an antigen suitable for a sustained CTL response in the mammal; delivering the antigen to a lymphatic system of the mammal on a sustained basis over a period time at a level sufficient to induce and sustain a sustained antigen-specific effector CTL response in the mammal. - View Dependent Claims (9, 10)
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11. A method of obtaining a sustained CTL response in a mammal, which method comprises:
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selecting an antigen that is capable of inducing CTL in a mammal; delivering the antigen to the mammal at a level sufficient to induce an antigen-specific CTL response in the mammal, wherein the antigen is delivered to an area of high lymphatic drainage in the mammal; and maintaining the antigen in the mammal'"'"'s lymphatic system sufficient to sustain the antigen-specific CTL response for a period of time that is substantially co-extensive with the desired duration of the CTL response.
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12. A method of a sustained effector CTL response in a mammal, which method comprises:
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delivering an antigen to a lymphatic system of the mammal on a sustained basis over a period time at a level sufficient to induce a sustained antigen-specific effector CTL response in the mammal; and detecting the sustained effector CTL response in the mammal. - View Dependent Claims (13, 14, 15)
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16. A method of obtaining effector CTL response in a mammal, which method comprises:
delivering an antigen in an acellular composition directly to an area of high lymphatic drainage in the mammal on a sustained basis over a period time at a level sufficient to induce a sustained effector antigen-specific CTL response in the mammal. - View Dependent Claims (17, 18, 19, 20)
Specification