1. ZFTA (Zinc Finger Translocation Associated) Fusion in Supratentorial Ependymomas: Low Prevalence in South Asians and No Correlation with Survival.
- Author
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Goyal-Honavar A, Balasundaram A, Thayakaran IP, Babu M, Pai R, Joseph J, Jayachandran R, Chacko AG, Mathew LG, Balakrishnan R, Rajshekhar V, Jeyaseelan L, Sudarsanam TD, and Chacko G
- Subjects
- Humans, In Situ Hybridization, Fluorescence, NF-kappa B metabolism, Prevalence, Transcription Factor RelA genetics, Transcription Factor RelA metabolism, Translocation, Genetic genetics, Zinc Fingers, Ependymoma genetics, Ependymoma metabolism, Ependymoma surgery, Supratentorial Neoplasms genetics, Supratentorial Neoplasms metabolism, Supratentorial Neoplasms surgery
- Abstract
Background: Supratentorial ependymomas (STEs) are an aggressive group of ependymomas, topographically distinct from their posterior fossa and spinal counterparts. Zinc finger translocation associated (ZFTA) fusion-positive cases have been reported to account for the majority of STEs, although data on its association with poorer outcomes are inconsistent., Materials and Methods: We assessed the prevalence of the ZFTA fusion by reverse-transcription polymerase chain reaction and fluorescence in situ hybridization in a cohort of 61 patients (68 samples) with STE. Our primary outcome was to determine the role of the ZFTA fusion on progression-free and overall survival of patients with STE. Our secondary objectives were to assess the impact of ZFTA fusion on nuclear factor (NF)-kB pathway signaling via surrogate markers of this pathway, namely COX-2, CCND1, and L1 cell adhesion molecule., Results: ZFTA fusion was noted in 21.3% of STEs in our cohort. The presence of this rearrangement did not significantly impact the progression-free or overall survival of patients with STEs and was not associated with upregulation of markers of the NF-kB pathway. Only gross total resection was significantly associated with better progression-free survival., Conclusions: In contradiction to previous reports from across the world, the ZFTA fusion is far less prevalent among our population. It does not appear to drive NF-kB signaling or significantly affect outcomes. Gross total resection must be attempted in all cases of STE and adjuvant radiation and/or chemotherapy employed when gross total resection is not achieved., (Copyright © 2022 Elsevier Inc. All rights reserved.)
- Published
- 2022
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