Positron emission tomography imaging of tau pathology in progressive supranuclear palsy

Sarah Coakeley, Sang Soo Cho, Yuko Koshimori, Pablo Rusjan, Madeleine Harris, Christine Ghadery, Jinhee Kim, Anthony E. Lang, Alan Wilson, Sylvain Houle, Antonio P. Strafella

Research output: Contribution to journalArticle

Abstract

Progressive supranuclear palsy is a rare form of atypical Parkinsonism that differs neuropathologically from other parkinsonian disorders. While many parkinsonian disorders such as Parkinson’s disease, Lewy body dementia, and multiple system atrophy are classified as synucleinopathies, progressive supranuclear palsy is coined a tauopathy due to the aggregation of pathological tau in the brain. [18F]AV-1451 (also known as [18F]-T807) is a positron emission tomography radiotracer that binds to paired helical filaments of tau in Alzheimer’s disease. We investigated whether [18F]AV-1451 could be used as biomarker for the diagnosis and disease progression monitoring in progressive supranuclear palsy. Six progressive supranuclear palsy, six Parkinson’s disease, and 10 age-matched healthy controls were recruited. An anatomical MRI and a 90-min PET scan, using [18F]AV-1451, were acquired from all participants. The standardized uptake value ratio from 60 to 90 min post-injection was calculated in each region of interest, using the cerebellar cortex as a reference region. No significant differences in standardized uptake value ratios were detected in our progressive supranuclear palsy group compared to the two control groups. [18F]AV-1451 may bind selectivity to the paired helical filaments in Alzheimer’s disease, which differ from the straight conformation of tau filaments in progressive supranuclear palsy.

Original languageEnglish (US)
Pages (from-to)3150-3160
Number of pages11
JournalJournal of Cerebral Blood Flow and Metabolism
Volume37
Issue number9
DOIs
StatePublished - Sep 1 2017
Externally publishedYes

Keywords

  • Brain imaging
  • movement disorder
  • neuropathology
  • Parkinson’s disease
  • positron emission tomography

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine

Fingerprint Dive into the research topics of 'Positron emission tomography imaging of tau pathology in progressive supranuclear palsy'. Together they form a unique fingerprint.

Cite this