Vaccination Strategies in the Treatment of Lymphomas

Veelken, Hendrik; Osterroth, Frank
April 2002
Oncology;2002, Vol. 62 Issue 3, p187
Academic Journal
Malignant lymphomas are clonal neoplasms of lymphoid origin. By definition, all cells of the malignant clone have undergone the same rearrangement of antigen receptor genes and express identical antigen receptor molecules (immunoglobulin for B cell lymphomas, T cell receptor for T cell lymphomas). The hypervariable stretches within the variable regions of these receptors are considered true tumor-specific antigens (‘idiotypes’). In several animal models, protective humoral or cellular immunity can be induced against the malignant lymphoma by vaccination with the tumor-derived idiotype. Successful experimental immunization strategies in animals include idiotype protein vaccines combined with various adjuvants, genetically or immunologically modified lymphoma cells, idiotype-presenting dendritic cells, idiotype-encoding viral vectors, and DNA immunization. Firm evidence for the induction of lymphoma-specific immunity has also been obtained from human idiotype vaccination trials. Furthermore, some trials have provided strong but hitherto formally unproven evidence for clinical benefit of idiotype-vaccinated patients. Alternative vaccination approaches are based on immunologically modified tumor cells. Current research efforts concentrate on the identification of the most efficacious vaccination route, on definitive proof of clinical efficacy, and on the development of convenient methods to manufacture individual idiotype vaccines.Copyright © 2002 S. Karger AG, Basel


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