Current NanomaterialsCurrent NanomaterialsCurrent Nanomaterials2405-46152405-4623Bentham Science64625410.2174/2405461508666230816090519Materials Science and NanotechnologyResearch ArticleQuantitative Characterization of the Effect of Biogenic silver-based Nanoparticles on Breast Cancer Cells by High Content AnalysisFerreiraVeronicainfo@benthamscience.netEugenioMateusinfo@benthamscience.netDel NeryElaineinfo@benthamscience.netde SouzaWanderleyinfo@benthamscience.netSant’AnnaCelsoinfo@benthamscience.netEukaryotic Cell Biology Laboratory (Labio), National Institute of Metrology, Quality and Technology - Inmetro, Duque de CaxiasBioPhenics High-Content Screening Laboratory, Cell and Tissue Imaging Facility (PICT-IBISA), Translational Research Department, PSL Research University, Post-graduation Program on Translational Biomedicine – BiotransEukaryotic Cell Biology Laboratory (Labio), National Institute of Metrology, Quality and Technology010420249435536615012025Copyright ©; 2024, Bentham Science Publishers2024Bentham Science Publishershttps://journals.eco-vector.com/2405-4615/article/view/646254

Background:Among the various types of cancer, breast cancer is the most incident among women. Due to the resistance to antitumor treatments, alternative treatments have been sought, such as metallic nanoparticles.

Objective:This study aimed to evaluate the antitumor potential and cytotoxicity induction mechanisms of green synthesized AgCl-NPs and Ag/AgCl-NPs.

Methods:The antitumor potential of nanoparticles was evaluated in breast cancer BT-474 and MDAMB- 436 cell lines treated with 0-40 μg/mL AgCl-NPs or 0-12.5 μg/mL Ag/AgCl-NPs through imagebased high content analysis method. Normal human retinal pigment epithelial 1 (RPE-1) cells were used for comparison.

Results:The growth rate of the RPE-1 cells treated with nanoparticles was insignificantly affected, and no significant changes in cell viability were observed. In these cells, the nanoparticle treatments did not induce lysosomal damage, changes in ROS production, or reduction in the mitochondrial membrane potential. The level of BT-474 and MDA-MB-436 cell proliferation was markedly decreased, and cell viability was reduced by 64.19 and 46.19% after treatment with AgCl-NPs and reduced by 98.36 and 82.29% after treatment with Ag/AgCl-NPs. The cells also showed a significant increase in ROS production and loss of mitochondrial membrane potential, which culminated in an increase in the percentage of apoptotic cells. BT-474 cells also presented lysosomal damage when treated with the highest concentrations of both nanoparticle types and actin polymerization was observed after exposure to Ag/AgCl-NPs.

Conclusions:Together, the results showed overall cytotoxic effects of both AgCl-NPs and Ag/AgCl- NPs towards breast cancer cells with negligible effects against healthy cells, which suggests their promising anticancer and biomedical applications.

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