Methods for preparation of vaccines against cancer

The present invention relates to methods for preparing large amounts of immunogenic material that is useful as a vaccine for the prevention and/or treatment of cancer. The vaccine is comprised of noncovalent complexes of heat shock proteins (hsp), including, but not limited to, hsp70, hsp90, gp96, a...

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Bibliographic Details
Main Author Srivastava, Pramod K
Format Patent
LanguageEnglish
Published 18.06.2002
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Summary:The present invention relates to methods for preparing large amounts of immunogenic material that is useful as a vaccine for the prevention and/or treatment of cancer. The vaccine is comprised of noncovalent complexes of heat shock proteins (hsp), including, but not limited to, hsp70, hsp90, gp96, and protein disulfide isomerase, and antigenic peptides. The vaccine is capable of eliciting or augmenting a subject's immune response against a particular cancer. The present invention relates to methods for preparing immunogenic, prophylactically and therapeutically effective complexes of heat shock proteins noncovalently associated with antigenic peptides of cancer cells. The claimed methods comprise the constructing of a cDNA library from cancer or preneoplastic cell RNA, expressing the cDNA library in an appropriate host cell, and recovering the immunogenic complexes from the cells. Large amounts of such immunogenic complexes can be obtained by large-scale culturing of host cells containing the cDNA library. The complexes can be used as a vaccine to elicit specific immune responses against cancer or preneoplastic cells, and to treat or prevent cancer.