Genomic characterization reveals potential biomarkers in nasopharyngeal carcinoma patients with relapse

William C.S. Cho*, Ka Po Tse*, Roger K.C. Ngan, Wah Cheuk, Victor W.S. Ma, Yi Ting Yang, Timothy T.C. Yip, Kien Thiam Tan*, Shu Jen Chen

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

5 Scopus citations

Abstract

Background: Although the majority of nasopharyngeal carcinoma (NPC) patients demonstrate favorable outcomes after radiotherapy and/or chemotherapy, about 8–10% of patients will develop recurrent disease, and genomic alterations (GAs) associated with the recurrence are unclear. Methods: This study investigated the GAs in the paired primary tumors and recurrent tumors of 7 NPC patients with relapse, as well as the primary tumors of 15 NPC patients without relapse by deep targeted next-generation sequencing on 440 cancer-related genes. Results: BRCA1 and TP53 mutations were significantly enriched in patients with relapse (P = 0.021 and P = 0.023, respectively). Survival analysis revealed that the GAs of TP53, ZNF217, VEGFB, CDKN1B, GNAS, PRDM1, and MEN1 were associated with significantly shorter overall survival. The GAs of the tumor also altered after treatment in the relapsed group, and five genes (CDK4, FGFR3, ALK, BRCA1, and CHEK2) in the recurrent tumors were potentially druggable. Conclusions: The discovery of GAs associated with recurrence or survival in NPC may serve as potential prognostic gene signatures of high-risk patients. Targeted therapies are available in some of the clinically relevant GAs and may be considered in future clinical trials. Given the limitation of the sample size, validation by a larger cohort is warranted.

Original languageEnglish
Pages (from-to)1149-1159
Number of pages11
JournalExpert Review of Molecular Diagnostics
Volume20
Issue number11
DOIs
StatePublished - 2020

Bibliographical note

Publisher Copyright:
© 2020 Informa UK Limited, trading as Taylor & Francis Group.

Keywords

  • Clinically relevant genomic alteration
  • nasopharyngeal carcinoma
  • next-generation sequencing
  • prognostic biomarker
  • relapse

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