Genes differentially expressed in cancer cells to design cancer vaccines
First Claim
1. A method to identify a putative cancer therapeutic comprising the steps of:
- (a) identifying a polynucleotide which is uniquely expressed or overexpressed in a target cancer cell as compared with a control non-cancer cell;
(b) determining the protein corresponding to said identified polynucleotide;
(c) determining if said protein, or fragment thereof, is immunogenic, wherein the ability of said protein to elicit an immune response against said target cancer cell is indicative of a putative cancer therapeutic.
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Abstract
The present invention calls utilized genes differentially expressed in target cells to design vaccines to generate an immune response. Unlike prior art methods that seek to identify antigenic proteins from phenotypic analysis, the subject method applies functional genomics for antigen identification. The method is exemplified herein and therefore provides compositions and methods for inducing an immune response against gp 100 melanoma cells and for inducing an immune response against HER-2+cells. Cancer vaccines and adoptive immunotherapeutic methods to treat and prevent conditions associated with the presence of these cells in a subject also are provided. The methods can be practiced by administering the appropriate gene or cancer vaccine, antibody, protein, polypeptide, antigen-presenting cell or immune effector cell.
35 Citations
24 Claims
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1. A method to identify a putative cancer therapeutic comprising the steps of:
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(a) identifying a polynucleotide which is uniquely expressed or overexpressed in a target cancer cell as compared with a control non-cancer cell;
(b) determining the protein corresponding to said identified polynucleotide;
(c) determining if said protein, or fragment thereof, is immunogenic, wherein the ability of said protein to elicit an immune response against said target cancer cell is indicative of a putative cancer therapeutic. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method to design a cancer vaccine from a sample obtained from a subject suffering from cancer, the improvement comprising:
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identifying an amino acid sequence which is not previously known to be antigenic, but which is (i) uniquely expressed or overexpressed in a target cancer cell from said subject, as compared with a control non-cancer cell, and (ii) capable of eliciting an immune response against said target cancer cell.
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- 8. A method for inducing an immune response against a target cell in a subject, comprising delivering to the subject an effective amount of an antigenic peptide that is uniquely expressed or overexpressed in the target cell and has not been previously identified as having the ability to induce an immune response in the subject, whereby an immune response is mounted against the target cell.
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17. A method for enhancing an immune response in a subject against a target cell, comprising administering to the subject an effective amount of an immune effector cell that was raised against an antigenic peptide that is uniquely expressed or overexpressed in the target cell and has not been previously identified as having the ability to induce an immune response in the subject, whereby an immune response is mounted against the target cell.
- 21. A method for enhancing an immune response in a subject against a target cell, comprising administering to the subject an effective amount of an antibody that was raised against an antigenic peptide that is uniquely expressed or overexpressed in the target cell and has not been previously identified as having the ability to induce an immune response in the subject, whereby an immune response is mounted against the target cell.
Specification