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RETRACTED ARTICLE: Gene knockout of 5-lipoxygenase rescues synaptic dysfunction and improves memory in the triple-transgenic model of Alzheimer's disease

This article was retracted on 05 October 2022

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Abstract

5-Lipoxygenase (5LO) is upregulated in Alzheimer’s disease (AD) and in vivo modulates the amyloidotic phenotype of amyloid precursor protein transgenic mice. However, no data are available on the effects that 5LO has on synaptic function, integrity and cognition. To address this issue, we used a genetic and a pharmacological approach by generating 3 × Tg mice deficient for 5LO and administering 3 × Tg mice with a 5LO inhibitor. Compared with controls, we found that even before the development of overt neuropathology, both animals manifested significant memory improvement, rescue of their synaptic dysfunction and amelioration of synaptic integrity. In addition, later in life, these mice had a significant reduction of Aβ and tau pathology. Our findings support a novel functional role for 5LO in regulating synaptic plasticity and memory. They establish this protein as a pleiotropic contributor to the development of the full spectrum of the AD phenotype, making it a valid therapeutic target for the treatment of AD.

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Acknowledgements

This study was supported by the US National Institute of Health (NIH) Grants AG033568, NS071096 to DP; P30 DA 13429 and T32 DA 07237 to the Center for Substance Abuse Research. Additional support was provided by a grant from the Alzheimer Art Quilt Initiative to DP.

Author Contributions

PFG and DP designed the study, developed the experimental design, performed data analyses and wrote the paper. PFG, JC, YBJ, JL and MS performed the experiments. PFG, MS and LGK designed and performed electrophysiology experiments. All the authors discussed the results and commented on the manuscript.

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Correspondence to D Praticò.

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The authors declare no conflict of interest.

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Supplementary Information accompanies the paper on the Molecular Psychiatry website

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Giannopoulos, P., Chu, J., Joshi, Y. et al. RETRACTED ARTICLE: Gene knockout of 5-lipoxygenase rescues synaptic dysfunction and improves memory in the triple-transgenic model of Alzheimer's disease. Mol Psychiatry 19, 511–518 (2014). https://doi.org/10.1038/mp.2013.23

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