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Erschienen in:

22.09.2022 | Original Paper

Structure–activity relationship of a housefly neuroprotective dodecapeptide that activates the nuclear factor erythroid 2-related factor 2 pathway

verfasst von: Sichen Zhang, Chunguo Qian, Hailing Li, Zhimin Zhao, Jianchun Xian, Depo Yang

Erschienen in: Journal of Natural Medicines | Ausgabe 1/2023

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Abstract

Neuroprotective antioxidants, especially peptide-based antioxidants, are effective against oxidative stress in neurodegenerative disorders. In this study, we measured the neuroprotective effects of the antioxidant peptide DFTPVCTTELGR (DR12) from housefly Musca domestica L. pupae. Treatment of PC12 and HT22 cells with DR12 significantly reduced glutamate-induced cytotoxicity. Peptide DR12 appeared to exert its neuroprotective effects by attenuating production of reactive oxygen species and malonaldehyde, upregulating the endogenous antioxidants superoxide dismutase and glutathione, and reversing the loss of mitochondrial membrane potential. In addition, DR12 treatment activated the nuclear factor erythroid 2-related factor 2/heme oxygenase-1 signaling pathway. Structure–activity analysis indicated that the superior neuroprotective function of DR12 was related to its cysteine residue. In summary, DR12 may be an attractive therapeutic peptide or precursor to treat neurodegenerative diseases.
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Metadaten
Titel
Structure–activity relationship of a housefly neuroprotective dodecapeptide that activates the nuclear factor erythroid 2-related factor 2 pathway
verfasst von
Sichen Zhang
Chunguo Qian
Hailing Li
Zhimin Zhao
Jianchun Xian
Depo Yang
Publikationsdatum
22.09.2022
Verlag
Springer Nature Singapore
Erschienen in
Journal of Natural Medicines / Ausgabe 1/2023
Print ISSN: 1340-3443
Elektronische ISSN: 1861-0293
DOI
https://doi.org/10.1007/s11418-022-01650-1