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Tuning the Anticancer Activity of a Novel Pro-Apoptotic Peptide Using Gold Nanoparticle Platforms Publisher Pubmed



Akrami M1 ; Balalaie S2 ; Hosseinkhani S3, 4 ; Alipour M4 ; Salehi F5 ; Bahador A6 ; Haririan I1, 7
Authors

Source: Scientific Reports Published:2016


Abstract

Pro-apoptotic peptides induce intrinsic apoptosis pathway in cancer cells. However, poor cellular penetration of the peptides is often associated with limited therapeutic efficacy. In this report, a series of peptide-gold nanoparticle platforms were developed to evaluate the anticancer activity of a novel alpha-lipoic acid-peptide conjugate, LA-WKRAKLAK, with respect to size and shape of nanoparticles. Gold nanoparticles (AuNPs) were found to enhance cell internalization as well as anticancer activity of the peptide conjugates. The smaller nanospheres showed a higher cytotoxicity, morphological change and cellular uptake compared to larger nanospheres and nanorods, whereas nanorods showed more hemolytic activity compared to nanospheres. The findings suggested that the anticancer and biological effects of the peptides induced by intrinsic apoptotic pathway were tuned by peptide-functionalized gold nanoparticles (P-AuNPs) as a function of their size and shape.
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