New therapeutic approaches for malignant glioma: in search of the Rosetta stone
نویسندگان
چکیده
Malignant gliomas are heterogeneous, diffuse and highly infiltrating by nature. Despite wide surgical resection and improvements in radio- and chemotherapies, the prognosis of patients with glioblastoma multiforme remains extremely poor, with a median survival time of only 14.5 months from diagnosis to death. Particular challenges for glioblastoma multiforme therapy are posed by limitations in the extent of feasible surgical resections, distinct tumor heterogeneity, difficulties in drug delivery across the blood-brain barrier and low drug distribution within the tumor. Therefore, new paradigms permitting tumor-specific targeting and extensive intratumoral distribution must be developed to allow an efficient therapeutic delivery. This review highlights the latest advances in the treatment of glioblastoma multiforme and the recent developments that have resulted from the interchange between preclinical and clinical efforts. We also summarize and discuss novel therapies for malignant glioma, focusing on advances in the following main topics of glioblastoma multiforme therapy: immunotherapy, gene therapy, stem cell-based therapies and nanotechnology. We discuss strategies and outcomes of emerging therapeutic approaches in these fields, and the main challenges associated with the integration of discoveries that occur in the laboratory into clinical practice.
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