Tau expression levels from various adeno-associated virus vector serotypes produce graded neurodegenerative disease states

Ronald L. Klein, Robert D. Dayton, Jason B. Tatom, Cynthia G. Diaczynsky, Michael Francis Salvatore

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35 Citations (Scopus)

Abstract

Neurodegenerative diseases involving neurofibrillary tangle pathology are pernicious. By expressing the microtubule-associated protein tau, a major component of tangles, with a viral vector, we induce neuropathological sequelae in rats that are similar to those seen in human tauopathies. We tested several variants of the adeno-associated virus (AAV) vector for tau expression in the nigrostriatal system in order to develop models with graded onset and completeness. Whereas previous studies with AAV2 tau vectors produced partial lesions of the nigrostriatal system, AAV9 or AAV10 tau vectors were more robust. These vectors had formidable efficacy relative to 6-hydroxydopamine for dopamine loss in the striatum. Time-courses for tau transgene expression, dopamine loss and rotational behavior tracked the disease progression with the AAV9 tau vector. There was a nearly complete lesion over a delayed time-course relative to 6-hydroxydopamine, with a sequence of tau expression by 1 week, dopamine loss by 2 weeks and then behavior effect by 3-4 weeks. Relative to AAV2 or AAV8, tau expression from AAV9 or AAV10 peaked earlier and caused more dopamine loss. Varying vector efficiencies produced graded states of disease up to nearly complete. The disease models stemming from the AAV variants AAV9 or AAV10 may be useful for rapid drug screening, particularly for tau diseases that affect the nigrostriatal system, such as progressive supranuclear palsy.

Original languageEnglish
Pages (from-to)1615-1625
Number of pages11
JournalEuropean Journal of Neuroscience
Volume27
Issue number7
DOIs
StatePublished - 1 Apr 2008

Fingerprint

Dependovirus
Neurodegenerative Diseases
Dopamine
Oxidopamine
Tauopathies
Progressive Supranuclear Palsy
Preclinical Drug Evaluations
Neurofibrillary Tangles
Microtubule-Associated Proteins
Transgenes
Disease Progression
Pathology
Serogroup

Keywords

  • Adeno-associated virus
  • Gene transfer
  • Neurodegenerative diseases
  • Progressive supranuclear palsy
  • Rats

Cite this

Klein, Ronald L. ; Dayton, Robert D. ; Tatom, Jason B. ; Diaczynsky, Cynthia G. ; Salvatore, Michael Francis. / Tau expression levels from various adeno-associated virus vector serotypes produce graded neurodegenerative disease states. In: European Journal of Neuroscience. 2008 ; Vol. 27, No. 7. pp. 1615-1625.
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Tau expression levels from various adeno-associated virus vector serotypes produce graded neurodegenerative disease states. / Klein, Ronald L.; Dayton, Robert D.; Tatom, Jason B.; Diaczynsky, Cynthia G.; Salvatore, Michael Francis.

In: European Journal of Neuroscience, Vol. 27, No. 7, 01.04.2008, p. 1615-1625.

Research output: Contribution to journalArticleResearchpeer-review

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