4.4 Article

Genetic variants of cancer-associated genes analyzed using next-generation sequencing in small sporadic vestibular schwannomas

Journal

ONCOLOGY LETTERS
Volume 25, Issue 3, Pages -

Publisher

SPANDIDOS PUBL LTD
DOI: 10.3892/ol.2023.13707

Keywords

vestibular schwannoma; neurofibromatosis 2; acoustic neuroma; NF2; NGS

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Vestibular schwannoma (VS) is the most common tumor of the cerebellopontine angle. The use of traditional microsurgeries to treat VS has decreased, possibly due to the adoption of serial imaging as the initial evaluation and treatment strategy. The study identified NF2 as the most frequently mutated gene in small sporadic VS.
Vestibular schwannoma (VS) is the most common tumor of the cerebellopontine angle. Despite the increasing diagnosis of sporadic VS over the past decade, the use of traditional microsurgeries to treat VS has decreased. This is likely a result of the adoption of serial imaging as the most common initial evaluation and treatment strategy, especially for small-sized VS. However, the pathobiology of VSs remains unclear, and elucidating the genetic information of tumor tissue may reveal novel insights. The present study performed a comprehensive genomic analysis of all exons in the key tumor suppressor and oncogenes from 10 small (<15 mm) sporadic VS samples. The evaluations identified NF2, SYNE1, IRS2, APC, CIC, SDHC, BRAF, NUMA1, EXT2, HRAS, BCL11B, MAGI1, RNF123, NLRP1, ASXL1, ADAMTS20, TAF1L, XPC, DDB2 and ETS1 as mutated genes. The current study could not draw any new conclusions about the relationship between VS-related hearing loss and gene mutations; however, it did reveal that NF2 was the most frequently mutated gene in small sporadic VS.

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