DOI: 10.1523/jneurosci.3040-05.2005. Ribosome Dysfunction Is an Early Event in Alzheimer's Disease

Ribosome Dysfunction Is an Early Event in Alzheimer's Disease

10.1523/jneurosci.3040-05.2005

Crossref journal-article

Society for Neuroscience

The Journal of Neuroscience (393)

Abstract

Alzheimer's disease (AD) is a progressive and devastating disorder that is often preceded by mild cognitive impairment (MCI). In the present study, we report that in multiple cortical areas of MCI and AD subjects, there is a significant impairment in ribosome function that is not observed in the cerebellum of the same subjects. The impairment in ribosome function is associated with a decreased rate and capacity for protein synthesis, decreased ribosomal RNA and tRNA levels, and increased RNA oxidation. No alteration in the level of initiation factors was observed in the brain regions exhibiting impairments in protein synthesis. Together, these data indicate for the first time that impairments in protein synthesis may be one of the earliest neurochemical alterations in AD and directly demonstrate that the polyribosome complex is adversely affected early in the development of AD. These data have important implications for AD studies involving proteomics and studies analyzing proteolysis in AD, indicate that oxidative damage may contribute to decreased protein synthesis, and suggest a role for alterations in protein synthesis as a novel contributor to the onset and development of AD.

Bibliography

Ding, Q., Markesbery, W. R., Chen, Q., Li, F., & Keller, J. N. (2005). Ribosome Dysfunction Is an Early Event in Alzheimerâs Disease. The Journal of Neuroscience, 25(40), 9171â9175.

Authors 5

Qunxing Ding (first)
William R. Markesbery (additional)
Qinghua Chen (additional)
Feng Li (additional)
Jeffrey N. Keller (additional)

References 31 Referenced 373

{'key': '2023041303150484000_25.40.9171.1', 'first-page': '2203', 'volume': '12', 'year': '1992', 'journal-title': 'Mol Cell Biol'} / Mol Cell Biol (1992)
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Dates

Type	When
Created	19 years, 10 months ago (Oct. 5, 2005, 5:37 p.m.)
Deposited	2 years, 4 months ago (April 13, 2023, 12:59 p.m.)
Indexed	14 hours, 47 minutes ago (Sept. 3, 2025, 6:49 a.m.)
Issued	19 years, 10 months ago (Oct. 5, 2005)
Published	19 years, 10 months ago (Oct. 5, 2005)
Published Online	19 years, 10 months ago (Oct. 5, 2005)
Published Print	19 years, 10 months ago (Oct. 5, 2005)

Funders 0

None

BibTeX

@article{Ding_2005, title={Ribosome Dysfunction Is an Early Event in Alzheimer’s Disease}, volume={25}, ISSN={1529-2401}, url={http://dx.doi.org/10.1523/jneurosci.3040-05.2005}, DOI={10.1523/jneurosci.3040-05.2005}, number={40}, journal={The Journal of Neuroscience}, publisher={Society for Neuroscience}, author={Ding, Qunxing and Markesbery, William R. and Chen, Qinghua and Li, Feng and Keller, Jeffrey N.}, year={2005}, month=oct, pages={9171–9175} }

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