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Generation of Human Monocyte-derived Dendritic Cells from Whole Blood
Published on: December 24, 2016
Can leukemia-derived dendritic cells generate antileukemia immunity?
Jacalyn Rosenblatt1, David Avigan
1Beth Israel Deaconess Medical Center, Hematologic Malignancy Bone Marrow Transplant Program, 330 Brookline Avenue, KS 121, Boston, MA 02215, USA. jacalyn_rosenblatt@bidmc.harvard.edu
Expert Review of Vaccines
|September 23, 2006
Summary
Cancer vaccines using dendritic cells (DCs) derived from leukemia cells show promise for treating acute myeloid leukemia. However, abnormalities in leukemia cells may limit the effectiveness of this cellular immunotherapy.
Area of Science:
- Oncology
- Immunology
- Cell Biology
Background:
- Cancer vaccines are investigated for inducing antitumor immune responses.
- Acute myeloid leukemia (AML) may respond to cellular immune-based therapy, suggested by allogeneic transplantation success.
- Dendritic cells (DCs), potent antigen-presenting cells, are a focus for cancer vaccine development.
Purpose of the Study:
- To explore the potential of generating DCs from leukemic blasts for cancer vaccines in acute leukemia.
- To investigate if leukemia-derived DCs can retain tumor-associated antigens for immune presentation.
- To identify limitations in using leukemia-derived DCs due to intrinsic malignant cell abnormalities.
Main Methods:
- Generating dendritic cells (DCs) from leukemic blasts ex vivo using cytokine exposure.
- Evaluating the potential of leukemia-derived DCs to present tumor-associated antigens.
- Assessing the impact of intrinsic malignant clone abnormalities on DC differentiation.
Main Results:
- Leukemia-derived DCs may retain tumor-associated antigens from the leukemic clone.
- These DCs present antigens within the context of mature DC immune-stimulating machinery.
- Intrinsic abnormalities in malignant clones may hinder normal DC differentiation, potentially limiting efficacy.
Conclusions:
- Generating dendritic cells (DCs) from leukemic blasts is a promising strategy for acute leukemia immunotherapy.
- The efficacy of leukemia-derived DC vaccines may be compromised by inherent defects in the leukemic cells preventing proper DC maturation.
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