scholarly journals Cytotoxicity of Biologically Synthesized Silver Nanoparticles in MDA-MB-231 Human Breast Cancer Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Sangiliyandi Gurunathan ◽  
Jae Woong Han ◽  
Vasuki Eppakayala ◽  
Muniyandi Jeyaraj ◽  
Jin-Hoi Kim

Silver nanoparticles (AgNPs) have been used as an antimicrobial and disinfectant agents. However, there is limited information about antitumor potential. Therefore, this study focused on determining cytotoxic effects of AgNPs on MDA-MB-231 breast cancer cells and its mechanism of cell death. Herein, we developed a green method for synthesis of AgNPs using culture supernatant ofBacillus funiculus, and synthesized AgNPs were characterized by various analytical techniques such as UV-visible spectrophotometer, particle size analyzer, and transmission electron microscopy (TEM). The toxicity was evaluated using cell viability, metabolic activity, and oxidative stress. MDA-MB-231 breast cancer cells were treated with various concentrations of AgNPs (5 to 25 μg/mL) for 24 h. We found that AgNPs inhibited the growth in a dose-dependent manner using MTT assay. AgNPs showed dose-dependent cytotoxicity against MDA-MB-231 cells through activation of the lactate dehydrogenase (LDH), caspase-3, reactive oxygen species (ROS) generation, eventually leading to induction of apoptosis which was further confirmed through resulting nuclear fragmentation. The present results showed that AgNPs might be a potential alternative agent for human breast cancer therapy.

2021 ◽  
Author(s):  
Yana Evstratova ◽  
Margarita Kobyakova ◽  
Irina Odinokova ◽  
Alexander Stolyarov ◽  
Artyom Mishukov ◽  
...  

2017 ◽  
Vol 11 (8) ◽  
pp. 965-972 ◽  
Author(s):  
Ramasamy Subbaiya ◽  
Muthupandian Saravanan ◽  
Andavar Raja Priya ◽  
Konathala Ravi Shankar ◽  
Masilamani Selvam ◽  
...  

2013 ◽  
Vol 19 (5) ◽  
pp. 1600-1605 ◽  
Author(s):  
Sangiliyandi Gurunathan ◽  
Jae Woong Han ◽  
Ahmed Abdal Dayem ◽  
Vasuki Eppakayala ◽  
Jung Hyun Park ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86242-86253 ◽  
Author(s):  
Bharat Bhushan ◽  
P. Gopinath

The current study exploits the folate-mediated delivery of bovine serum albumin (BSA) stabilized Ag NPs and thereby overcomes various drawbacks associated with non-specific targeting.


2021 ◽  
Vol 11 ◽  
Author(s):  
Ning Zhang ◽  
Jiawen Wang ◽  
Aimin Sheng ◽  
Shuo Huang ◽  
Yanyan Tang ◽  
...  

Natural products have proved to be a promising source for the development of potential anticancer drugs. Emodin, a natural compound from Rheum palmatum, is used to treat several types of cancers, including lung, liver, and pancreatic. However, there are few reports regarding its use in the treatment of breast cancer. Thus, the therapeutic effect and mechanism of emodin on MCF-7 human breast cancer cells were investigated in this study. Morphological observations and cell viability were evaluated to determine the anti-proliferation activity of emodin. Network pharmacology and molecular docking were performed to screen the potential targets. Western blot analysis was used to explore a potential antitumor mechanism. The results showed that emodin (50–100 μmol/L) could significantly inhibit the proliferation of MCF-7 cells in a time and dose-dependent manner. Furthermore, virtual screening studies indicated that emodin was a potent aryl hydrocarbon receptor (AhR) agonist in chemotherapy for breast cancer. Finally, when MCF-7 cells were treated with emodin (100 μmol/L) for 24 h, the AhR and cytochrome P450 1A1 (CYP1A1) protein expression levels were significantly upregulated compared with the control group. Our study indicated that emodin exhibited promising antitumor activity in MCF-7 cells, likely through activation of the AhR-CYP1A1 signaling pathway. These findings lay a foundation for the application of emodin in breast cancer treatment.


2020 ◽  
Vol 21 (8) ◽  
pp. 2997 ◽  
Author(s):  
Kyu-Shik Lee ◽  
Min-Gu Lee ◽  
Yun-Suk Kwon ◽  
Kyung-Soo Nam

Several reports have described the anti-cancer activity of arctigenin, a lignan extracted from Arctium lappa L. Here, we investigated the effect of arctigenin (ATG) on doxorubicin (DOX)-induced cell death using MDA-MB-231 human breast cancer cells. The results showed that DOX-induced cell death was enhanced by ATG/DOX co-treatment in a concentration-dependent manner and that this was associated with increased DOX uptake and the suppression of multidrug resistance-associated protein 1 (MRP1) gene expression in MDA-MB-231 cells. ATG enhanced DOX-induced DNA damage and decreased the phosphorylation of signal transducer and activator of transcription 3 (STAT3) and the expressions of RAD51 and survivin. Cell death caused by ATG/DOX co-treatment was mediated by the nuclear translocation of apoptosis inducing factor (AIF), reductions in cellular and mitochondrial Bcl-2 and Bcl-xL, and increases in mitochondrial BAX levels. However, caspase-3 and -7 did not participate in DOX/ATG-induced cell death. We also found that DOX/ATG-induced cell death was linked with activation of the p38 signaling pathway and suppressions of the phosphorylations and expressions of Akt and c-Jun N-terminal kinase. Taken together, these results show that ATG enhances the cytotoxic activity of DOX in MDA-MB-231 human breast cancer cells by inducing prolonged p21 expression and p38-mediated AIF-dependent cell death. In conclusion, our findings suggest that ATG might alleviate the side effects and improve the therapeutic efficacy of DOX.


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