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Induction of Alloantigen-specific Anergy in Human Peripheral Blood Mononuclear Cells by Alloantigen Stimulation with Co-stimulatory Signal Blockade
Published on: March 14, 2011
Adoptive Immunotherapy after Allogeneic Hematopoietic Progenitor Cell Transplantation: New Perspectives for
Susanne Hofmann1, Jochen Greiner
1Department of Internal Medicine III, University of Ulm, Germany.
SUMMARY: Allogeneic hematopoietic progenitor cell transplantation (HPCT) is a crucial therapeutic option in hematological malignancies, and the graft-versus-leukemia (GvL) effect builds the cornerstone of a long-lasting remission. Cyto-toxic T cells are known to be the primary effector cells in GvL. They recognize minor histocompatibility antigens (mHags) and tumor/leukemia-associated antigens. In case of disease relapse after HPCT, donor lymphocyte infusion (DLI) is an important treatment option for re-induction of remission. However, both treatments, HPCT and DLI carry the risk of morbidity and mortality due to graft-versus-host disease (GvHD) and severe infections. Therefore, the development of targeted adoptive immunotherapy with a lower risk of GvHD is needed, and several study groups are working on that topic.
SUMMARY: Allogeneic hematopoietic progenitor cell transplantation (HPCT) is a crucial therapeutic option in hematological malignancies, and the graft-versus-leukemia (GvL) effect builds the cornerstone of a long-lasting remission. Cyto-toxic T cells are known to be the primary effector cells in GvL. They recognize minor histocompatibility antigens (mHags) and tumor/leukemia-associated antigens. In case of disease relapse after HPCT, donor lymphocyte infusion (DLI) is an important treatment option for re-induction of remission. However, both treatments, HPCT and DLI carry the risk of morbidity and mortality due to graft-versus-host disease (GvHD) and severe infections. Therefore, the development of targeted adoptive immunotherapy with a lower risk of GvHD is needed, and several study groups are working on that topic.
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