Opinion statement
Though the majority of nervous system tumors are sporadic, several clinically relevant genetic syndromes are associated with a predisposition to tumors of the central and peripheral nervous system including neurofibromatosis type 1 (NF1), type 2 (NF2), and schwannomatosis (SWN). These represent prototypical tumor suppressor syndromes where loss of a tumor suppressor gene-protein impairs the cell’s ability to regulate cell proliferation. While clinical manifestations vary widely for each of these syndromes, tumors arising in the peripheral nerve sheath are a unifying feature. Clinical clues should prompt the clinician to recognize the underlying genetic syndrome and screen for associated tumors including, among others, plexiform neurofibromas and gliomas in NF1 and vestibular schwannomas, meningiomas, and spinal ependymomas in NF2. Improvements in mechanistic understanding of how the genetic mutations that underlie these syndromes contribute to tumor formation have led to new advances in targeted therapies. MEK inhibitors have shown promise for treating progressive plexiform neurofibromas in NF1. Bevacizumab has been shown to improve hearing and treat vestibular schwannomas in NF2. This article reviews the currently available data on management of tumors associated with these three syndromes.
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Roy E. Strowd serves as a consultant for Monteris Medical Inc., Novocure, and Nanobiotix; he receives an editorial stipend as Section Editor of the Resident and Fellow Section of Neurology(R) and has received research/grant support from the American Academy of Neurology, American Society of Clinical Oncology, Southeastern Brain Tumor Foundation, and Jazz Pharmaceuticals; however, none of these is relevant to this article.
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Patients with Neurofibromatosis-Related Nervous System Tumors
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Strowd, R.E. Available Therapies for Patients with Neurofibromatosis-Related Nervous System Tumors. Curr. Treat. Options in Oncol. 21, 81 (2020). https://doi.org/10.1007/s11864-020-00779-z
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DOI: https://doi.org/10.1007/s11864-020-00779-z