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Antioxidant and cytoprotective effects of synthetic peptides identified from Kluyveromyces marxianus protein hydrolysate : insight into the molecular mechanism

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Abstract
Antioxidant peptide obtained from Kluyveromyces marxianus protein hydrolysate, VLSTSFPPK (VL-9) and peptide analogues were synthesized chemically and analyzed for in vitro and cellular antioxidant activity. VLSTSFCPK (VCK-9), VLSTSFYPK (VYK-9), VLSTSFPPY (VY-9) and VLSTSFPPW(VW-9) showed the highest DPPH radical, ABTS radical cation scavenging and ferric reducing activities. VCK-9, VYK-9 and STSFPPK (SK-7) showed cytoprotective effects against Caco2 cells under H2O2-induced oxidative stress. The positive role of peptides in the protection of cells was shown to be due to scavenging free radicals, activation of Keap1-Nrf2 signaling pathway that may lead to overexpression of antioxidant enzyme genes and also increasing the activity of antioxidant enzymes including catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPX) due to direct interaction with enzymes and changing their conformation. Altogether, pretreatment of cells under oxidative stress with VCK-9, VYK-9 and SK-7 led to decreasing the level of lipid and protein oxidation and cell apoptosis and increasing the cell viability.
Keywords
Synthetic peptides, Cytoprotective activity, Molecular docking, Antioxidants, IN-VITRO, TRIPEPTIDE, HEPG2

Citation

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MLA
Mirdamadi, Saeed, et al. “Antioxidant and Cytoprotective Effects of Synthetic Peptides Identified from Kluyveromyces Marxianus Protein Hydrolysate : Insight into the Molecular Mechanism.” LWT-FOOD SCIENCE AND TECHNOLOGY, vol. 148, 2021, doi:10.1016/j.lwt.2021.111792.
APA
Mirdamadi, S., Mirzaei, M., Soleymanzadeh, N., Safavi, M., Bakhtiari, N., & Zandi, M. (2021). Antioxidant and cytoprotective effects of synthetic peptides identified from Kluyveromyces marxianus protein hydrolysate : insight into the molecular mechanism. LWT-FOOD SCIENCE AND TECHNOLOGY, 148. https://doi.org/10.1016/j.lwt.2021.111792
Chicago author-date
Mirdamadi, Saeed, Mahta Mirzaei, Nazila Soleymanzadeh, Maliheh Safavi, Nahid Bakhtiari, and Mohammad Zandi. 2021. “Antioxidant and Cytoprotective Effects of Synthetic Peptides Identified from Kluyveromyces Marxianus Protein Hydrolysate : Insight into the Molecular Mechanism.” LWT-FOOD SCIENCE AND TECHNOLOGY 148. https://doi.org/10.1016/j.lwt.2021.111792.
Chicago author-date (all authors)
Mirdamadi, Saeed, Mahta Mirzaei, Nazila Soleymanzadeh, Maliheh Safavi, Nahid Bakhtiari, and Mohammad Zandi. 2021. “Antioxidant and Cytoprotective Effects of Synthetic Peptides Identified from Kluyveromyces Marxianus Protein Hydrolysate : Insight into the Molecular Mechanism.” LWT-FOOD SCIENCE AND TECHNOLOGY 148. doi:10.1016/j.lwt.2021.111792.
Vancouver
1.
Mirdamadi S, Mirzaei M, Soleymanzadeh N, Safavi M, Bakhtiari N, Zandi M. Antioxidant and cytoprotective effects of synthetic peptides identified from Kluyveromyces marxianus protein hydrolysate : insight into the molecular mechanism. LWT-FOOD SCIENCE AND TECHNOLOGY. 2021;148.
IEEE
[1]
S. Mirdamadi, M. Mirzaei, N. Soleymanzadeh, M. Safavi, N. Bakhtiari, and M. Zandi, “Antioxidant and cytoprotective effects of synthetic peptides identified from Kluyveromyces marxianus protein hydrolysate : insight into the molecular mechanism,” LWT-FOOD SCIENCE AND TECHNOLOGY, vol. 148, 2021.
@article{8766043,
  abstract     = {{Antioxidant peptide obtained from Kluyveromyces marxianus protein hydrolysate, VLSTSFPPK (VL-9) and peptide analogues were synthesized chemically and analyzed for in vitro and cellular antioxidant activity. VLSTSFCPK (VCK-9), VLSTSFYPK (VYK-9), VLSTSFPPY (VY-9) and VLSTSFPPW(VW-9) showed the highest DPPH radical, ABTS radical cation scavenging and ferric reducing activities. VCK-9, VYK-9 and STSFPPK (SK-7) showed cytoprotective effects against Caco2 cells under H2O2-induced oxidative stress. The positive role of peptides in the protection of cells was shown to be due to scavenging free radicals, activation of Keap1-Nrf2 signaling pathway that may lead to overexpression of antioxidant enzyme genes and also increasing the activity of antioxidant enzymes including catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPX) due to direct interaction with enzymes and changing their conformation. Altogether, pretreatment of cells under oxidative stress with VCK-9, VYK-9 and SK-7 led to decreasing the level of lipid and protein oxidation and cell apoptosis and increasing the cell viability.}},
  articleno    = {{111792}},
  author       = {{Mirdamadi, Saeed and Mirzaei, Mahta and Soleymanzadeh, Nazila and Safavi, Maliheh and Bakhtiari, Nahid and Zandi, Mohammad}},
  issn         = {{0023-6438}},
  journal      = {{LWT-FOOD SCIENCE AND TECHNOLOGY}},
  keywords     = {{Synthetic peptides,Cytoprotective activity,Molecular docking,Antioxidants,IN-VITRO,TRIPEPTIDE,HEPG2}},
  language     = {{eng}},
  pages        = {{10}},
  title        = {{Antioxidant and cytoprotective effects of synthetic peptides identified from Kluyveromyces marxianus protein hydrolysate : insight into the molecular mechanism}},
  url          = {{http://doi.org/10.1016/j.lwt.2021.111792}},
  volume       = {{148}},
  year         = {{2021}},
}

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