Expression of Enterocin-P in HEK Platform: Evaluation of Its Cytotoxic Effects on Cancer Cell Lines and Its Potency to Interact with Cell-Surface Glycosaminoglycan by Molecular Modeling

  • Zana Pirkhezranian
  • Abbas Tanhaeian
  • Mehdi Mirzaii
  • Mohammad Hadi SekhavatiEmail author


Cancer remains one of the leading causes of death worldwide. Introduction of natural compounds with anticancer properties can be an effective step in the prevention and treatment of cancer. Antimicrobial peptides (AMPs) are short peptides whose anticancer activities have been proved previously. In the present study, Enterocin-P (EntP) as a bacteriocin of E. faecium was expressed in HEK expression system by pcDNA3.1 + vector. The recombinant peptide was purified from culture medium using Ni2+ affinity chromatography with an average yield of 0.6 mg/ml. The cytotoxic activity of the recombinant peptide was determined toward some cancer cell lines including: SW1353, HUH7, Huh-7.5, C26, B16F0 and NIH3T3 as a normal cell line. Our results showed that EntP peptide had selective cytotoxicity activity only against C26 (IC50: 0.32 mg/ml) and SW1353 (IC50: 1.36 mg/ml) as cancer cell and did not show cytotoxic properties against normal cell. In the second phase of our study, to better understand the mechanisms of EntP peptide, we have tried to predict the possible interaction of this peptide to predominantly negative charge molecules in the cell membrane of cancer cells. Our in-silico analysis revealed that EntP peptide has strong tendency to chondroitin sulfate (− 189 ± 6.24 kJ/mol) and heparan sulfate (− 115 ± 5.12 kJ/mol) as two well-known anionic molecules on surface cancer cells.


Antimicrobial peptides Entrocin-P HEK expression system Anticancer Glycosaminoglycan Structural bioinformatics 



The present study was funded by Ferdowsi University of Mashhad of I.R.I with Grant No. 45321.


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Zana Pirkhezranian
    • 1
  • Abbas Tanhaeian
    • 2
  • Mehdi Mirzaii
    • 2
  • Mohammad Hadi Sekhavati
    • 1
    Email author
  1. 1.Department of Animal Sciences, Faculty of AgricultureFerdowsi University of MashhadMashhadIran
  2. 2.School of MedicineShahroud University of Medical ScienceShahroudIran

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