Immunotherapy for Glioblastoma: Current Progress and Challenges

Glioblastoma is a highly lethal brain cancer with a median survival rate of less than 15 months when treated with the current standard of care, which consists of surgery, radiotherapy and chemotherapy. With the recent success of immunotherapy in other aggressive cancers such as advanced melanoma and...

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Main Authors: Miranda W. Yu, Daniela F. Quail
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-05-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2021.676301/full
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author Miranda W. Yu
Miranda W. Yu
Daniela F. Quail
Daniela F. Quail
Daniela F. Quail
author_facet Miranda W. Yu
Miranda W. Yu
Daniela F. Quail
Daniela F. Quail
Daniela F. Quail
author_sort Miranda W. Yu
collection DOAJ
description Glioblastoma is a highly lethal brain cancer with a median survival rate of less than 15 months when treated with the current standard of care, which consists of surgery, radiotherapy and chemotherapy. With the recent success of immunotherapy in other aggressive cancers such as advanced melanoma and advanced non-small cell lung cancer, glioblastoma has been brought to the forefront of immunotherapy research. Resistance to therapy has been a major challenge across a multitude of experimental candidates and no immunotherapies have been approved for glioblastoma to-date. Intra- and inter-tumoral heterogeneity, an inherently immunosuppressive environment and tumor plasticity remain barriers to be overcome. Moreover, the unique tissue-specific interactions between the central nervous system and the peripheral immune system present an additional challenge for immune-based therapies. Nevertheless, there is sufficient evidence that these challenges may be overcome, and immunotherapy continues to be actively pursued in glioblastoma. Herein, we review the primary ongoing immunotherapy candidates for glioblastoma with a focus on immune checkpoint inhibitors, myeloid-targeted therapies, vaccines and chimeric antigen receptor (CAR) immunotherapies. We further provide insight on mechanisms of resistance and how our understanding of these mechanisms may pave the way for more effective immunotherapeutics against glioblastoma.
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spelling doaj.art-3bd2d72c08d1481d9ed195fd9c6a6c5d2022-12-21T21:53:15ZengFrontiers Media S.A.Frontiers in Immunology1664-32242021-05-011210.3389/fimmu.2021.676301676301Immunotherapy for Glioblastoma: Current Progress and ChallengesMiranda W. Yu0Miranda W. Yu1Daniela F. Quail2Daniela F. Quail3Daniela F. Quail4Rosalind and Morris Goodman Cancer Research Centre, McGill University, Montreal, QC, CanadaDepartment of Physiology, McGill University, Montreal, QC, CanadaRosalind and Morris Goodman Cancer Research Centre, McGill University, Montreal, QC, CanadaDepartment of Physiology, McGill University, Montreal, QC, CanadaDepartment of Medicine, Division of Experimental Medicine, McGill University, Montreal, QC, CanadaGlioblastoma is a highly lethal brain cancer with a median survival rate of less than 15 months when treated with the current standard of care, which consists of surgery, radiotherapy and chemotherapy. With the recent success of immunotherapy in other aggressive cancers such as advanced melanoma and advanced non-small cell lung cancer, glioblastoma has been brought to the forefront of immunotherapy research. Resistance to therapy has been a major challenge across a multitude of experimental candidates and no immunotherapies have been approved for glioblastoma to-date. Intra- and inter-tumoral heterogeneity, an inherently immunosuppressive environment and tumor plasticity remain barriers to be overcome. Moreover, the unique tissue-specific interactions between the central nervous system and the peripheral immune system present an additional challenge for immune-based therapies. Nevertheless, there is sufficient evidence that these challenges may be overcome, and immunotherapy continues to be actively pursued in glioblastoma. Herein, we review the primary ongoing immunotherapy candidates for glioblastoma with a focus on immune checkpoint inhibitors, myeloid-targeted therapies, vaccines and chimeric antigen receptor (CAR) immunotherapies. We further provide insight on mechanisms of resistance and how our understanding of these mechanisms may pave the way for more effective immunotherapeutics against glioblastoma.https://www.frontiersin.org/articles/10.3389/fimmu.2021.676301/fullglioblastomabrain cancerimmunotherapytumor microenvironmentresistance to therapy
spellingShingle Miranda W. Yu
Miranda W. Yu
Daniela F. Quail
Daniela F. Quail
Daniela F. Quail
Immunotherapy for Glioblastoma: Current Progress and Challenges
Frontiers in Immunology
glioblastoma
brain cancer
immunotherapy
tumor microenvironment
resistance to therapy
title Immunotherapy for Glioblastoma: Current Progress and Challenges
title_full Immunotherapy for Glioblastoma: Current Progress and Challenges
title_fullStr Immunotherapy for Glioblastoma: Current Progress and Challenges
title_full_unstemmed Immunotherapy for Glioblastoma: Current Progress and Challenges
title_short Immunotherapy for Glioblastoma: Current Progress and Challenges
title_sort immunotherapy for glioblastoma current progress and challenges
topic glioblastoma
brain cancer
immunotherapy
tumor microenvironment
resistance to therapy
url https://www.frontiersin.org/articles/10.3389/fimmu.2021.676301/full
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AT mirandawyu immunotherapyforglioblastomacurrentprogressandchallenges
AT danielafquail immunotherapyforglioblastomacurrentprogressandchallenges
AT danielafquail immunotherapyforglioblastomacurrentprogressandchallenges
AT danielafquail immunotherapyforglioblastomacurrentprogressandchallenges