scholarly journals An Intrinsic Mitochondrial Pathway Is Required for Phytic Acid-Chitosan-Iron Oxide Nanocomposite (Phy-CS-MNP) to Induce G0/G1 Cell Cycle Arrest and Apoptosis in the Human Colorectal Cancer (HT-29) Cell Line

Pharmaceutics ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 198 ◽  
Author(s):  
Bee Tan ◽  
Mohd Norhaizan ◽  
Lee Chan

Magnetic iron oxide nanoparticles are among the most useful metal nanoparticles in biomedical applications. A previous study had confirmed that phytic acid-chitosan-iron oxide nanocomposite (Phy-CS-MNP) exhibited antiproliferative activity towards human colorectal cancer (HT-29) cells. Hence, in this work, we explored the in vitro cytotoxicity activity and mechanistic action of Phy-CS-MNP nanocomposite in modulating gene and protein expression profiles in HT-29 cell lines. Cell cycle arrest and apoptosis were evaluated by NovoCyte Flow Cytometer. The mRNA changes (cyclin-dependent kinase 4 (Cdk4), vascular endothelial growth factor A (VEGFA), c-Jun N-terminal kinase 1 (JNK1), inducible nitric oxide synthase (iNOS), and matrix metallopeptidase 9 (MMP9)) and protein expression (nuclear factor-kappa B (NF-κB) and cytochrome c) were assessed by quantitative real-time polymerase chain reaction (PCR) and western blotting, respectively. The data from our study demonstrated that treatment with Phy-CS-MNP nanocomposite triggered apoptosis and G0/G1 cell cycle arrest. The transcriptional activity of JNK1 and iNOS was upregulated after treatment with 90 μg/mL Phy-CS-MNP nanocomposite. Our results suggested that Phy-CS-MNP nanocomposite induced apoptosis and cell cycle arrest via an intrinsic mitochondrial pathway through modulation of Bax and Bcl-2 and the release of cytochrome c from the mitochondria into the cytosol.

2019 ◽  
Vol 460 (1-2) ◽  
pp. 123-150 ◽  
Author(s):  
Małgorzata Girek ◽  
Karol Kłosiński ◽  
Bartłomiej Grobelski ◽  
Stefania Pizzimenti ◽  
Marie Angele Cucci ◽  
...  

2018 ◽  
Vol 7 (2) ◽  
pp. 59-63
Author(s):  
Wu-Ming Qin ◽  
Kun Wang ◽  
Jia-Rong Huang ◽  
Xiao-Long Mei ◽  
Zhi Shi ◽  
...  

2015 ◽  
Vol 117 (5) ◽  
pp. 1262-1272 ◽  
Author(s):  
Nadia Mustapha ◽  
Aline Pinon ◽  
Youness Limami ◽  
Alain Simon ◽  
Kamel Ghedira ◽  
...  

2017 ◽  
Vol 38 (3) ◽  
pp. 1783-1789 ◽  
Author(s):  
Na Lam Hwang ◽  
Yong Jung Kang ◽  
Bokyung Sung ◽  
Seong Yeon Hwang ◽  
Jung Yoon Jang ◽  
...  

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