BACKGROUND: Meningioma is the most common primary central nervous system neoplasm, accounting for about a third of all brain tumors. Because their growth rates and prognosis cannot be accurately estimated, biomarkers that enable prediction of their biological behavior would be clinically beneficial. OBJECTIVE: To identify coding and noncoding RNAs crucial in meningioma prognostication and pathogenesis. METHODS: Total RNA was purified from formalin-fixed and paraffin-embedded tumor samples of 64 patients with meningioma with distinct clinical characteristics (16 recurrent, 30 nonrecurrent with follow-up of >5 years, and 18 with follow-up of <5 years without recurrence). Transcriptomic sequencing was performed using the HiSeq 2500 platform (Illumina), and biological and functional differences between meningiomas of different types were evaluated by analyzing differentially expression of messenger RNA (mRNA) and long noncoding RNA (IncRNA). The prognostic value of 11 differentially expressed RNAs was then validated in an independent cohort of 90 patients using reverse transcription quantitative (real-time) polymerase chain reaction. RESULTS: In total, 69 mRNAs and 108 lncRNAs exhibited significant differential expression between recurrent and nonrecurrent meningiomas. Differential expression was also observed with respect to sex (12 mRNAs and 59 lncRNAs), World Health Organization grade (58 mRNAs and 98 lncRNAs), and tumor histogenesis (79 mRNAs and 76 lncRNAs). Lnc-GOLGA6A-1, ISLR2, and AMH showed high prognostic power for predicting meningioma recurrence, while lnc-GOLGA6A-1 was the most significant factor for recurrence risk estimation (1/hazard ratio = 1.31; P = .002). CONCLUSION: Transcriptomic sequencing revealed specific gene expression signatures of various clinical subtypes of meningioma. Expression of the lnc-GOLGA61-1 transcript was found to be the most reliable predictor of meningioma recurrence.

Department of Clinical and Molecular Pathology Faculty of Medicine and Dentistry Palacky University and University Hospital Olomouc Olomouc Czech Republic

Department of Neurology University Hospital Olomouc Olomouc Czech Republic

Department of Neurosurgery Faculty of Medicine and Dentistry Palacky University and University Hospital Olomouc Olomouc Czech Republic

Department of Neurosurgery Svet Zdravia Hospital Michalovce Michalovce Slovak Republic

Laboratory of Experimental Medicine Institute of Molecular and Translational Medicine Faculty of Medicine and Dentistry Palacky University and University Hospital Olomouc Olomouc Czech Republic

Research Centre for Applied Molecular Oncology Masaryk Memorial Cancer Institute Brno Czech Republic

Neurosurgery. 2022 Dec 1;91(6):e175. doi: 10.1227/neu.0000000000002188. PubMed

Neurosurgery. 2023 Mar 1;92(3):e74-e75. doi: 10.1227/neu.0000000000002331. PubMed

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