Increased tau expression correlates with IDH mutation in infiltrating gliomas and impairs cell migration

Satoshi Nakata, Antionette Price, Charles Eberhart, Meaghan Morris

Research output: Contribution to journalArticle

Abstract

Although the microtubule-associated protein tau is well studied in human neurodegeneration, the role of tau in neoplastic brain diseases is not well understood. Recently, studies have shown tau mRNA expression is associated with improved survival in human infiltrating gliomas. However, the biologic basis of this association is largely unexplored. Using 2 independent publicly available mRNA databases, we show that high tau mRNA expression is associated with improved patient survival in infiltrating gliomas. Higher tau protein expression is also associated with improved patient prognosis in infiltrating gliomas by immunohistochemical staining of tissue microarrays. This prognostic association is in part due to higher tau mRNA and protein expression in IDH-mutant infiltrating astrocytomas. Expression of tau in an IDH-wildtype glioblastoma cell line selectively impairs cell migration in assays designed to mimic tumor invasion. These findings suggest that tau expression is not only associated with IDH mutation status but also may contribute to improved patient outcomes by impairing tumor invasion.

Original languageEnglish (US)
Pages (from-to)493-499
Number of pages7
JournalJournal of neuropathology and experimental neurology
Volume79
Issue number5
DOIs
StatePublished - May 1 2020

Keywords

  • Astrocytoma
  • Glioma
  • IDH
  • MAPT
  • Prognosis
  • Tau

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Neurology
  • Clinical Neurology
  • Cellular and Molecular Neuroscience

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