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Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
Published on: January 7, 2019
Vaccine therapies for pediatric malignancies
Raphaël F Rousseau1, Malcolm K Brenner
1Center for Cell and Gene Therapy and Texas Children's Cancer Center, Baylor College of Medicine, 6621 Fannin-MC 3-3320, Houston, Texas 77030, USA. rfrousse@txccc.org
Abstract:
Cancer vaccines are examples of active immunotherapy. In pediatric malignancy such active strategies may be particularly problematic because of immune suppression produced by the tumor or its intensive treatment with combined chemotherapy. Nonetheless, the expression of tumor-specific and tumor-associated antigens on a range of pediatric tumors has encouraged investigation of the approach in patients with either bulky or minimal residual disease. Here we describe promising results in neuroblastoma and acute leukemia, suing genetically modified whole cell vaccines, peptides, and dendritic cells. The difficulties of conducting and evaluating such studies in a pediatric population are also described, and a strategy for cancer vaccine development is outlined.
Insights
Pediatric cancer vaccines show promise in treating neuroblastoma and acute leukemia. Despite challenges like immune suppression, novel approaches using whole cell vaccines, peptides, and dendritic cells are being investigated.
Area of Science:
- Immunology
- Pediatric Oncology
- Cancer Therapeutics
Background:
- Active immunotherapy, including cancer vaccines, presents unique challenges in pediatric malignancies due to tumor-induced or treatment-related immune suppression.
- Despite these hurdles, the presence of tumor-specific and tumor-associated antigens in pediatric cancers warrants the exploration of vaccine strategies.
- Investigating these strategies is crucial for patients with either bulky disease or minimal residual disease.
Purpose of the Study:
- To explore the efficacy and challenges of active immunotherapy strategies in pediatric cancer patients.
- To present promising results from investigations into cancer vaccines for neuroblastoma and acute leukemia.
- To outline a strategic approach for the development of cancer vaccines in pediatric populations.
Main Methods:
- Utilizing genetically modified whole cell vaccines.
- Employing peptide-based vaccine strategies.
- Investigating the use of dendritic cells for cancer immunotherapy.
Main Results:
- Promising outcomes observed in clinical investigations for neuroblastoma.
- Encouraging results demonstrated in studies involving acute leukemia.
- Successful application of modified whole cell vaccines, peptides, and dendritic cells in pediatric cancer patients.
Conclusions:
- Cancer vaccine development in pediatric oncology is feasible and shows promising results.
- Overcoming immune suppression remains a key challenge in pediatric cancer vaccine therapy.
- A strategic framework is essential for advancing cancer vaccine research and application in children.
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