Current strategies for vaccination in glioblastoma

Purpose of review Immunotherapy is viewed as a promising approach for glioblastoma and, in particular, therapeutic vaccines are being intensively studied. Here, we review results provided by recent clinical trials of glioblastoma vaccination and discuss the required strategies to optimize such approaches. Recent findings Two studies showed the feasibility of generating mutation-derived personalized vaccines in the short time frame given by the fast course of disease in glioblastoma. However, one of these demonstrated lack of mutation-derived cell surface presented MHC class I or II peptides in tumors with low mutational burden. Summary Whereas glioblastoma vaccines are well tolerated, impact on patient survival has yet to be proven. Combinations with immune checkpoint inhibitors are being tested, but strategies aiming at targeting the tumor microenvironment should be implemented as well. Finally, accurate immunomonitoring should be promoted in order to identify the best vaccine strategies, alone or in combination.
Source: Current Opinion in Oncology - Category: Cancer & Oncology Tags: BRAIN AND NERVOUS SYSTEM: Edited by Marc Sanson Source Type: research

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Four times a year, the Science Translational Medicine editors select recently published articles across the Science family of journals and highlight interesting translational ties. These short write-ups identify common links between disparate diseases; technologies and research approaches that could prove complementary; and biomedical insights that may inform therapies or treatments. This quarter’s articles cover algorithm-assisted diagnosis of disease, strategies to surmount the blood-brain barrier, therapeutic gene editing, progress toward SARS-CoV-2 vaccines, the body’s response to synthetic materials, and i...
Source: Science Translational Medicine - Category: Biomedical Science Tags: Editors ' Choice Source Type: research
This study suggests that immunotherapy comprising a branched multipeptide plus PADRE, poly-ICLC, and anti-PD1 could potentially enhance the anti-tumor effects of radiotherapy in a glioblastoma mouse model.
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
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Source: Current Neurology and Neuroscience Reports - Category: Neuroscience Source Type: research
CONCLUSIONS: Overall, our strategy provides a general roadmap for combination immunotherapy against gliomas and other cancer types. PMID: 32439701 [PubMed - as supplied by publisher]
Source: Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Clin Cancer Res Source Type: research
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Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
2Objectives: Glioblastoma (GBM) is one of the most difficult malignancies to eradicate. Recently, vaccines targeting GBM have shown potential clinical promises (1,2). In the tumor microenvironment, CD4+ T cells play an important role in tumor clearance not only by augmenting cytotoxic CD8+ T cells, but also by directly killing cancer cells (3,4). Based on the accumulating evidence of vaccine efficacy, it is important to establish an imaging tool which specifically delineates activated immune cells involved in therapeutic responses. Here, we targeted OX40 as an imaging biomarker, which is a co-stimulatory transmembrane rece...
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Center for Molecular Imaging Innovation & amp; Translation (CMIIT) YIA Symposium Source Type: research
ConclusionsThis preliminary study establishes vault nanoparticles as a feasible vehicle to increase drug delivery and immune response in a flank murine model of GBM. Future animal studies involving an intracranial orthotopic tumor model are required to fully evaluate the potential for CCL21-packaged vault nanoparticles as a strategy to bypass the blood brain barrier, enhance intracranial immune activity, and improve intracranial tumor control and survival.
Source: Journal of Neuro-Oncology - Category: Cancer & Oncology Source Type: research
Source: Clinical Trials And Noteworthy Treatments For Brain Tumors - Category: Cancer & Oncology Source Type: clinical trials
in Geurts Glioblastomas are aggressive, fast-growing primary brain tumors. After standard-of-care treatment with radiation in combination with temozolomide, the overall prognosis of newly diagnosed patients remains poor, with a 2-year survival rate of less than 20%. The remarkable survival benefit gained with immunotherapy in several extracranial tumor types spurred a variety of experimental intervention studies in glioblastoma patients. These ranged from immune checkpoint inhibition to vaccinations and adoptive T cell therapies. Unfortunately, almost all clinical outcomes were universally disappointing. In this perspe...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Perspective Source Type: research
AbstractGlioblastoma remains as the most common and aggressive primary adult brain tumor to date. Within the last decade, cancer immunotherapy surfaced as a broadly successful therapeutic approach for a variety of cancers. However, due to the neuroanatomical and immunosuppressive nature of malignant gliomas, conventional chemotherapy and radiotherapy treatments garner limited efficacy in patients with these tumors. The intricate structure of the blood brain barrier restricts immune accessibility into the tumor microenvironment, and malignant gliomas can activate various adaptive responses to subvert anticancer immune respo...
Source: Journal of Neuro-Oncology - Category: Cancer & Oncology Source Type: research
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