Gerstmann-Sträussler-Scheinker disease (GSS) is an autosomal dominant prion disease
caused by a mutation in the prion protein gene (PRNP). The Pro→Leu mutation at codon 102 of PRNP (P102L) is the most common mutation associated with GSS (GSS-P102L), and patients
commonly develop progressive cerebellar ataxia and dementia [
[1]
]. GSS is pathologically characterized by amyloid plaques consisting of prion protein
(PrP) that are primarily observed in the cerebellum and cerebral cortex, astrocytosis,
and spongiform degeneration [
[1]
,
[2]
]. Although the 18F-THK5351 tracer for positron emission tomography (PET) was originally developed to
bind to abnormally deposited tau protein [
[3]
], recent evidence indicates that it exhibits off-target binding to monoamine oxidase-B
(MAO-B) expressed in astrocytes [
- Harada R.
- Okamura N.
- Furumoto S.
- Furukawa K.
- Ishiki A.
- Tomita N.
- Tago T.
- Hiraoka K.
- Watanuki S.
- Shidahara M.
- Miyake M.
- Ishikawa Y.
- Matsuda R.
- Inami A.
- Yoshikawa T.
- Funaki Y.
- Iwata R.
- Tashiro M.
- Yanai K.
- Arai H.
- Kudo Y.
18F-THK5351: a novel PET radiotracer for imaging neurofibrillary pathology in Alzheimer
disease.
J. Nucl. Med. 2016; 57: 208-214
[4]
,
[5]
]. However, this off-target binding of the 18F-THK5351 tracer to MAO-B-expressing astrocytes can be used to visualize astrogliosis,
reflecting neurodegenerative processes other than tauopathy in various neurodegenerative
disorders [
- Ishiki A.
- Harada R.
- Kai H.
- Sato N.
- Totsune T.
- Tomita N.
- Watanuki S.
- Hiraoka K.
- Ishikawa Y.
- Funaki Y.
- Iwata R.
- Furumoto S.
- Tashiro M.
- Sasano H.
- Kitamoto T.
- Kudo Y.
- Yanai K.
- Furukawa K.
- Okamura N.
- Arai H.
Neuroimaging-pathological correlations of [(18)F]THK5351 PET in progressive supranuclear
palsy.
Acta Neuropathol. Commun. 2018; 6: 53
[6]
,
[7]
]. Here, we report a patient with genetically confirmed GSS harboring the P102L mutation
who was examined by 18F-THK5351 PET.Keywords
Abbreviations:
18F-FDG (18F-2-fluorodeoxy-d-glucose), 99mTc-ECD (99mTc-ethyl cysteinate dimer), DWI (diffusion-weighted imaging), GSS (Gerstmann-Sträussler-Scheinker disease), MAO-B (monoamine oxidase-B), P102L (Pro→Leu mutation at codon 102 of prion protein gene), PET (positron emission tomography), PRNP (prion protein gene), PrP (prion protein), SPECT (single-photon emission computed tomography.), SUV (standardized uptake value), SUVR (standardized uptake value ratio), T1WI (T1-weighted imaging)To read this article in full you will need to make a payment
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References
- Dominantly inherited prion protein cerebral amyloidoses - a modern view of Gerstmann-Sträussler-Scheinker.Handb. Clin. Neurol. 2018; 153: 243-269
- Neuropathology of Gerstmann-Straussler-Scheinker disease.Microsc. Res. Tech. 2000; 50: 10-15
- 18F-THK5351: a novel PET radiotracer for imaging neurofibrillary pathology in Alzheimer disease.J. Nucl. Med. 2016; 57: 208-214
- Monoamine oxidase B inhibitor, selegiline, reduces (18)F-THK5351 uptake in the human brain.Alzheimers Res. Ther. 2017; 9: 25
- Neuroimaging-pathological correlations of [(18)F]THK5351 PET in progressive supranuclear palsy.Acta Neuropathol. Commun. 2018; 6: 53
- THK5351 and flortaucipir PET with pathological correlation in a Creutzfeldt-Jakob disease patient: a case report.BMC Neurol. 2019; 19: 211
- Visualization of motor cortex involvement by 18F-THK5351 PET potentially strengthens diagnosis of amyotrophic lateral sclerosis.Clin. Nucl. Med. 2021; 46: 243-245
- Thalamic involvement determined using VSRAD advance on MRI and easy Z-score analysis of (99m)Tc-ECD-SPECT in Gerstmann-Sträussler-Scheinker syndrome with P102L mutation.J. Neurol. Sci. 2017; 373: 27-30
- Early clinical signs and imaging findings in Gerstmann-Straussler-Scheinker syndrome (Pro102Leu).Neurology. 2006; 66: 1672-1678
- First-in-human evaluation of (18)F-SMBT-1, a Novel (18)F-labeled MAO-B PET tracer for imaging reactive astrogliosis.J. Nucl. Med. 2022; (Epub ahead of print)https://doi.org/10.2967/jnumed.121.263254
Article info
Publication history
Published online: August 03, 2022
Accepted:
August 1,
2022
Received in revised form:
July 28,
2022
Received:
June 10,
2022
Identification
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