Gap junctions: the claymore for cancerous cells.
Masoud Asadi-Khiavi1, Hossein Hamzeiy, Sajjad Khani
1Department of Pharmacology and Toxicology, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran ; Research Center for Pharmaceutical Nanotechnology, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran ; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
Bioimpacts : BI
|May 17, 2013
Summary
Carbenoxolone (CBX), a gap junction blocker, impacted human breast cancer cell viability and induced apoptosis gene down-regulation in both low and high proliferative cell lines.
Area of Science:
- Cell Biology
- Cancer Research
- Pharmacology
Background:
- Gap junctions are crucial for cell proliferation and carcinogenesis.
- Their precise role in cancer pathogenesis remains debated.
- This study investigates Carbenoxolone (CBX) as a gap junction blocker in breast cancer cells.
Purpose of the Study:
- To evaluate the genotoxicity and cytotoxicity of Carbenoxolone (CBX).
- To assess the effects of CBX on MCF7 and BT20 human breast cancer cell lines.
- To understand the impact of gap junction blockade on cancer cell behavior.
Main Methods:
- Cultivation of MCF7 and BT20 human breast cancer cell lines.
- Treatment with varying doses of Carbenoxolone (CBX).
- Assessment of cellular cytotoxicity via cell viability assays and gene expression analysis using real-time PCR.
Main Results:
- Carbenoxolone (CBX) significantly affected cell viability in a dose-dependent manner.
- Down-regulation of both pro-apoptotic and anti-apoptotic genes was observed.
- Gene expression patterns varied between cell lines but showed consistent apoptotic effects.
Conclusions:
- Carbenoxolone (CBX) impacts both low and high proliferative breast cancer cell lines.
- The observed down-regulation of apoptosis-related genes may involve interactions with biomolecules via gap junctions.
- CBX demonstrates potential as a modulator of breast cancer cell behavior through gap junction inhibition.
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