Methods and compositions for improving the effectiveness of X-ir

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Cancer cell or component thereof

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424 9371, 424534, 424577, 435 2, 514908, 604 4, 604 6, 604 20, 604 27, 604 28, A61K 3514, A61K 4100, A61K 4505

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058208720

ABSTRACT:
Methods and pharmaceutical compositions for improving the effectiveness of radiation therapy for treating a subject having an internal solid tumor malignancy are disclosed. The methods include irradiating the tumor to release tumor-derived antigens in vivo, preparing a cellular vaccine including the isolated antigens admixed with a preparation of altered antigen presenting cells and administering the cellular vaccine to the subject. In the preferred embodiments, the antigen presenting cells are leukocytes that have been photochemically altered by subjecting the cells to photopheresis.

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