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Four-repeat tauopathies.

Thomas W Rösler1, Amir Tayaranian Marvian1, Matthias Brendel2

  • 1Dept. of Translational Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), 81377 Munich, Germany; Dept. of Neurology, Technical University of Munich, School of Medicine, 81675 Munich, Germany.

Progress in Neurobiology
|June 26, 2019
PubMed
Summary
This summary is machine-generated.

Four-repeat (4R-) tauopathies are neurodegenerative diseases characterized by tau protein inclusions. This review covers their spectrum, causes, mechanisms, propagation, diagnostics, and therapies, aiming for causal treatments.

Keywords:
4R-tauopathyAlzheimer’s diseaseArgyrophilic grain diseaseCorticobasal degenerationGlial globular tauopathyMicrotubule-Associated protein tauProgressive supranuclear palsy

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Area of Science:

  • Neuroscience
  • Pathology
  • Genetics

Background:

  • Four-repeat (4R-) tauopathies are a class of neurodegenerative diseases defined by tau protein aggregates.
  • Diseases like progressive supranuclear palsy and corticobasal degeneration fall under this category.
  • Tau protein is crucial for neuronal cytoskeleton dynamics.

Purpose of the Study:

  • To provide a comprehensive overview of the current understanding of 4R-tauopathies.
  • To discuss the neuropathological and clinical spectrum of these diseases.
  • To explore etiological factors, pathophysiological mechanisms, disease propagation, diagnostics, and therapeutic strategies.

Main Methods:

  • Review of existing literature on 4R-tauopathies.
  • Analysis of neuropathological and clinical data.
  • Discussion of genetic, environmental, and molecular mechanisms.
  • Examination of diagnostic tools like tau-PET and fluid biomarkers.
  • Overview of investigational therapeutic approaches.

Main Results:

  • 4R-tauopathies share a common pathophysiological basis.
  • Understanding of tau aggregation, post-translational modifications, and degradation pathways is advancing.
  • Disease propagation mechanisms involving extracellular tau are being elucidated.
  • Molecular diagnostic tools and therapeutic strategies are under development.

Conclusions:

  • 4R-tauopathies represent a unified disease concept based on shared pathophysiology.
  • Significant progress has been made in understanding these complex neurodegenerative conditions.
  • Challenges remain in developing causal therapies, but opportunities for advancement are present.