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Scallop-derived plasmalogen attenuates amyloid beta-induced inflammation and apoptosis in SH-SY5Y cells

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Abstract

Backgrounds

With an increase in the world’s aging population, candidate substances for the management of neurodegenerative diseases, including Alzheimer’s disease (AD), have received considerable attention. Amyloid beta (Aβ) peptide, the leading cause of AD, induces synaptic deficits, eventually leading to cognitive impairment. Plasmalogen is a subclass of glycerophospholipids containing a vinyl ether group in the glycerol backbone which has various efficacies.

Objectives

In this study, we investigated the mechanisms of scallop-derived plasmalogen (SPL) in neurotoxicity in human neurons, which remain incompletely understood. SH-SY5Y human neuroblastaoma cells were treated with Aβ 1–42, a major component of amyloid deposits in AD brains.

Results

SPL inhibited the phosphorylation of glycogen synthase kinase 3β and tau induced by Aβ. In addition, SPL decreased Aβ generation by downregulating the expression of amyloid precursor protein (APP) and beta-site APP cleaving enzyme 1. Furthermore, SPL suppressed the release of pro-inflammatory cytokines and expression of apoptotic proteins induced by Aβ.

Conclusion

Our study indicates that SPL would reduce Aβ-induced neurotoxicity associated with inflammation and apoptosis in human neuroblastoma cells.

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Data availability

All data and results of the current study are available from the corresponding authors upon reasonable request.

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Acknowledgements

The authors gratefully acknowledge the support provided by Biocorp (Goheung-gun, Jeollanam-do, Korea).

Funding

This research was supported by the Korea Institute of Marine Science and Technology Promotion (KIMST) funded by the Ministry of Oceans and Fisheries, Republic of Korea (20220027).

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Authors and Affiliations

Authors

Contributions

Investigation and data organization: J-YH; Original draft preparation and visualization: J-YH and MP; Conceptualization and supervision: H-JL. All authors have read and agreed to the published version of the manuscript.

Corresponding authors

Correspondence to Miey Park or Hae-Jeung Lee.

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Conflict of interest

Jin-Young Han declares that she has no conflict of interest. Miey Park declares that she has no conflict of interest. Hae-Jeung Lee declares that she has no conflict of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

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Han, JY., Park, M. & Lee, HJ. Scallop-derived plasmalogen attenuates amyloid beta-induced inflammation and apoptosis in SH-SY5Y cells. Mol. Cell. Toxicol. 20, 421–430 (2024). https://doi.org/10.1007/s13273-023-00399-2

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  • DOI: https://doi.org/10.1007/s13273-023-00399-2

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