Putative mechanism for anticancer properties of Ag-PP (NPs) extract

IET Nanobiotechnol. 2019 Aug;13(6):617-620. doi: 10.1049/iet-nbt.2018.5199.

Abstract

One of the most important challenges in treating cancer is the invasion and the angiogenesis of cancer cells. The synthesis of green nanoparticles (NPs) and their use in therapeutic fields is one of the most effective methods with minimal side effects in cancer treatment. In this study, cytotoxic and anti-angiogenic effects of silver NPs (AgNPs) coated with palm pollen extract [Ag-PP(NPs)] were evaluated. For this purpose, the cells were treated with NPs and then were subjected to trypan blue testing (48 h). Then, the cancer invasion was evaluated by the scratch procedure and the expressions of the vascular endothelial growth factor (VEGF) and its receptor (VEGF-R) genes were estimated using real-time PCR assay. Also, the angiogenesis effect of the NPs was investigated with chick chorioallantoic membrane (CAM) assay. The Ag-PP(NPs) induced cytotoxicity on MCF7 cells. The findings also showed that Ag-PP(NPs) inhibit invasive cancer cells and reduce the expression of VEGF and VEGF-R and significantly reduced the number and vessels lengths and the lengths and weights of the embryos in CAM assay. Ag-PP(NPs) with the induction of cytotoxic effects, metastatic inhibition and anti-angiogenesis properties should be considered as an appropriate option for treatment of cancer.

MeSH terms

  • Angiogenesis Inhibitors / chemistry
  • Angiogenesis Inhibitors / pharmacology
  • Angiogenesis Inhibitors / therapeutic use
  • Animals
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Apoptosis / drug effects
  • Chick Embryo
  • Chorioallantoic Membrane / cytology
  • Chorioallantoic Membrane / drug effects
  • Drug Evaluation, Preclinical
  • Gene Expression Regulation, Neoplastic / drug effects
  • Humans
  • MCF-7 Cells
  • Metal Nanoparticles* / chemistry
  • Metal Nanoparticles* / therapeutic use
  • Neovascularization, Pathologic / pathology
  • Neovascularization, Pathologic / prevention & control
  • Receptors, Vascular Endothelial Growth Factor / genetics
  • Silver / chemistry
  • Silver / pharmacology*
  • Vascular Endothelial Growth Factor A / genetics

Substances

  • Angiogenesis Inhibitors
  • Antineoplastic Agents
  • VEGFA protein, human
  • Vascular Endothelial Growth Factor A
  • colloidal silver
  • Silver
  • Receptors, Vascular Endothelial Growth Factor