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Published on: July 28, 2010
Nanosecond pulsed electric fields impair viability and mucin expression in mucinous colorectal carcinoma cell
Yiran Gu1, Long Zhang2, Hua Yang3
1Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China; School of Life Science, Shanghai University, Shanghai 200444, China.
Abstract:
Nanosecond pulsed electric fields (nsPEFs) are a non-thermal technology that can induce a myriad of biological responses and changes in cellular physiology. nsPEFs have gained significant attention as a novel cancer therapy. However, studies investigating the application of nsPEF in mucinous carcinomas are scarce. In this study, we explored several biological responses in two mucinous colorectal adenocarcinoma cell lines, LS 174T and HT-29, to nsPEF treatment. We determined the overall cell survival and viability rates following nsPEF treatment using CCK-8 and colony formation assays. We measured the intracellular effects of nsPEF treatment by analyzing cell cycle distribution, cell apoptosis and mitochondrial potential. We also analyzed mucin production at both mRNA and protein levels. Our results showed that nsPEF treatment significantly reduced mucinous cell viability in a dose-dependent manner. nsPEF treatment increased cell cycles arrest at G0/G1 while the proportion of G2/M cells gradually decreased. Cell apoptosis increased following nsPEF treatment with a clear loss in mitochondrial membrane potential. Furthermore, the protein expression of functional mucin family members decreased after nsPEF treatment. In conclusion, nsPEF treatment reduced MCRC cell viability, cell proliferation, and mucin protein production while promoted apoptosis. Our work is a pilot study that projects some insights into the potential clinical applications of nsPEFs in treating mucinous colorectal carcinoma.
Insights
Nanosecond pulsed electric fields (nsPEFs) show promise for treating mucinous colorectal carcinoma. This novel therapy reduced cancer cell viability and mucin production while increasing apoptosis.
Area of Science:
- Biomedical Engineering
- Oncology
- Cell Biology
Background:
- Nanosecond pulsed electric fields (nsPEFs) are a non-thermal technology with potential applications in cancer therapy.
- Research into nsPEF applications for mucinous carcinomas is limited.
- Mucinous colorectal carcinoma (MCRC) presents unique challenges in treatment.
Purpose of the Study:
- To investigate the biological effects of nsPEF treatment on mucinous colorectal adenocarcinoma cell lines.
- To evaluate the impact of nsPEF on cell viability, proliferation, apoptosis, and mucin production.
- To explore the potential of nsPEFs as a therapeutic strategy for MCRC.
Main Methods:
- Utilized LS 174T and HT-29 mucinous colorectal adenocarcinoma cell lines.
- Assessed cell viability and survival using CCK-8 and colony formation assays.
- Analyzed cell cycle distribution, apoptosis, mitochondrial membrane potential, and mucin production (mRNA and protein levels).
Main Results:
- nsPEF treatment significantly reduced cell viability and proliferation in a dose-dependent manner.
- Increased G0/G1 cell cycle arrest and apoptosis, accompanied by a loss of mitochondrial membrane potential.
- Decreased mRNA and protein expression of mucin family members.
Conclusions:
- nsPEF treatment effectively reduces MCRC cell viability, proliferation, and mucin production.
- nsPEFs promote apoptosis and disrupt mitochondrial function in mucinous carcinoma cells.
- This study provides preliminary insights into the potential clinical utility of nsPEFs for treating MCRC.
