Cited by 135Parkinson's Disease Mechanisms and TreatmentsNuclear Receptors and SignalingNerve injury and regeneration

Inhibiting BDNF expression by antisense oligonucleotide infusion causes loss of nigral dopaminergic neurons

Porritt, M.J., Batchelor, P.E., Howells, D.W·2005·Experimental Neurology

Abstract

Brain derived neurotrophic factor (BDNF) expression is significantly reduced in the Parkinson's disease substantia nigra. This neurotrophin has potent affects on dopaminergic neuron survival protecting them from the neurotoxins MPTP and 6-hydroxydopamine (6-OHDA) commonly used to create animal models of Parkinson's disease and also promoting dopaminergic axonal sprouting. In this study, we demonstrate that an antisense oligonucleotide infusion (200 nM for 28 days) to prevent BDNF production in the substantia nigra of rats mimics many features of the classical animal models of Parkinson's disease. 62% of antisense treated rats rotate (P < or = 0.05) in response to dopaminergic receptor stimulation by apomorphine. 40% of substantia nigra pars compacta tyrosine hydroxylase immunoreactive neurons are lost (P < or = 0.00001) and dopamine uptake site density measured by (3)H-mazindol autoradiography is reduced by 34% (P < or = 0.005). Loss of haematoxylin and eosin stained nigral neurons is significant (P < or = 0.0001) but less extensive (34%). These observations indicate that loss of BDNF expression leads both to down regulation of the dopaminergic phenotype and to dopaminergic neuronal death. Therefore, reduced BDNF mRNA expression in Parkinson's disease substantia nigra may contribute directly to the death of nigral dopaminergic neurons and the development of Parkinson's disease.

Integrity signals

Registry

Crossref · 10.1016/j.expneurol.2004.11.030

Cites

56 of 56 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • A decrease in expression of neurotrophins, especially BDNF, observed in aging and neurodegenerative diseases may contribute to degeneration and death of neurons.

    “It was found that the decrease in expression of NTs, especially BDNF observed in the aging process and in neurodegenerative diseases, may contribute to degeneration and death of neurons [58].”
  • BDNF has an important role in neuronal survival.

    “which suggests that BDNF has an important role in neuronal survival [166].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Porritt, M. J., Batchelor, P. E., & Howells, D. W.
Affiliations
The University of Melbourne (AU)
Corresponding author
Howells, D.W
Venue
Experimental Neurology
Publisher
Elsevier BV
Published
2005-03
Volume
192
Issue
1
Pages
226-234
ISSN
0014-4886 (ISSN-L)
OpenAlex
W1985464631
Cited by
135
References
56
Citations by year
2025: 7 · 2024: 2 · 2023: 7 · 2022: 5 · 2021: 4 · 2020: 8 · 2019: 3 · 2018: 10 · 2017: 9 · 2016: 6 · 2015: 10 · 2014: 5 · 2013: 6 · 2012: 11
FWCI
4.06
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Hospital Research Foundation
  • Austin Medical Research Foundation
  • National Health and Medical Research Council
  • National Medical Research Council
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
Keywords
brain-derived neurotrophic factor, substantia nigra pars compacta, dopaminergic neuron loss, Parkinson's disease, tyrosine hydroxylase, dopamine uptake, MPTP, 6-hydroxydopamine, apomorphine rotation, Parkinson's disease model
MeSH terms
Animals, Binding, Competitive, Cell Survival, Disease Models, Animal, Dopamine, Male, Mazindol, Nerve Degeneration, Neurons, Radioligand Assay, Receptors, Dopamine, RNA, Messenger, Substantia Nigra, Tyrosine 3-Monooxygenase, Down-Regulation, Oligonucleotides, Antisense, Cell Death, Rats, Sprague-Dawley, Neuroprotective Agents, Dopamine Uptake Inhibitors, Brain-Derived Neurotrophic Factor, Parkinsonian Disorders, Rats

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review