scholarly journals β-sitosterol Mediated Silver Nanoparticles Induce Cytotoxicity in Human Colon Cancer HT-29 Cells

Author(s):  
Palaniappan Chithambara Shathviha ◽  
Devaraj Ezhilarasan ◽  
Shanmugam Rajeshkumar ◽  
Jayaraman Selvaraj

Background: Silver nanoparticles (AgNP) are commonly used metallic nanoparticles in health care systems. Colon cancer incidence is increasing worldwide. In this study, AgNP was synthesized using β-sitosterol and its cytotoxic potential was evaluated in human colon cancer (HT-29) cells. Methods: Characterization of AgNP was analyzed by TEM and spectrophotometry analysis. HT-29 cells were treated with different concentrations (2, 4, 6, 8 and 10 ng/ml) of AgNPs and cytotoxicity was evaluated by MTT assay. The apoptosis was analyzed by the flow cytometry. The expression of p53 protein was analyzed by western blotting. Results: β-sitosterol mediated AgNP are spherical in shape and induced concentration-dependent cytotoxicity in HT-29 cells. AgNP caused apoptosis related morphological changes as evidenced by annexin positive staining. AgNP treatments also induced the p53 expression in HT-29 cells. Conclusion: Our present result suggests that β-sitosterol mediated AgNP induce apoptosis in colon cancer cells and this finding may pave the way for further experimental analysis in vivo.

2019 ◽  
Vol 30 (2) ◽  
pp. 483-493 ◽  
Author(s):  
Suganya Mani ◽  
Mythili Gnanamangai Balasubramanian ◽  
Ponmurugan Ponnusamy ◽  
Paranthaman Vijayan

2020 ◽  
Vol 16 (11) ◽  
pp. 817-827
Author(s):  
Kiren Jackson ◽  

It is of interest to study the cytotoxicity of silibinin assisted silver nanoparticles in human colorectal (HT-29) cancer cells. Silver nanoparticles were synthesized using silibinin as a reducing agent. The synthesized silibinin assisted silver nanoparticles (SSNPs) were characterized and analyzed using a transmission electron microscope and spectrophotometer. The SSNPs synthesized in this study are spherical and their size ranges from 10 to 80 nm. HT-29 cells were treated with different concentrations (2, 4, 6, 8 and 10 ng/mL) of SSNPs and cytotoxicity was evaluated. The apoptosis was using flow cytometry. p53 protein expression using western blot. SSNPs are induced a decrease in viability and increased concentration-dependent cytotoxicity in HT-29 cells. SSNPs treatment also caused apoptosis-related morphological changes. SSNPs treatments at 8 and 16 ng/ml showed a prominent apoptotic change i.e., 70.3% and 83.6% respectively, and decreased viability of HT-29 cells 20% and 11.2% respectively as compared to control cells. SSNPs treatments induced p53 expression in HT-29 cells. Data shows that SSNPs have the potential to induce apoptosis in colorectal cancer cells. This provides insights for the further evaluation of SSNPs in fighting colon cancer.


2007 ◽  
Vol 43 (2) ◽  
pp. 195-205 ◽  
Author(s):  
Ana García-Navarro ◽  
Cristina González-Puga ◽  
Germaine Escames ◽  
Luis C. López ◽  
Ana López ◽  
...  

Planta Medica ◽  
2005 ◽  
Vol 71 (6) ◽  
pp. 501-507 ◽  
Author(s):  
Jung-Mi Yun ◽  
Hoonjeong Kwon ◽  
Hasan Mukhtar ◽  
Jae-Kwan Hwang

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