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Inhibitory effect of α-solanine on esophageal carcinoma in vitro
Lei Wang1, Qian-Qian Sun2, Shi-Jie Zhang3
1Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China.
Abstract:
α-solanine, a bioactive component and one of the major steroidal glycoalkaloids in potatoes, has been observed to inhibit growth and induce apoptosis in cancer cells. However, the antitumor efficacy of α-solanine on esophageal carcinoma has yet to be fully elucidated. In the present study, the antitumor efficacy of α-solanine against human esophageal carcinoma cells was investigated. It was determined that α-solanine inhibited the growth and proliferation of human esophageal EC9706 and Eca109 cancer cells in a dose-dependent manner, as well as the cell migration and invasion. In addition, the apoptotic rate was increased in the cancer cells treated with α-solanine in a dose-dependent manner, compared with that of the control group (P<0.05). The expression levels of tumor metastasis-related proteins, including matrix metalloproteinase (MMP)-2 and MMP-9, were reduced in the cells treated with α-solanine, as compared with the control group. Conversely, significantly higher expression levels of E-cadherin were detected in the α-solanine-treated groups, as compared with the control group (P<0.05). Therefore, the current results provide a novel insight into the anti-tumor mechanism of α-solanine, and suggest that α-solanine is a potential agent for the prevention and treatment of esophageal carcinoma.
Insights
Alpha-solanine, a potato glycoalkaloid, effectively inhibits esophageal carcinoma cell growth and migration. This compound shows potential as an anti-cancer agent by inducing apoptosis and reducing metastasis-related proteins.
Area of Science:
- Oncology
- Molecular Biology
- Natural Products Chemistry
Background:
- Steroidal glycoalkaloids, like alpha-solanine found in potatoes, possess known anti-cancer properties.
- The specific anti-tumor effects of alpha-solanine on esophageal carcinoma require further investigation.
Purpose of the Study:
- To investigate the anti-tumor efficacy of alpha-solanine against human esophageal carcinoma cells.
- To elucidate the underlying anti-cancer mechanisms of alpha-solanine in esophageal cancer.
Main Methods:
- Treatment of human esophageal EC9706 and Eca109 cancer cells with varying doses of alpha-solanine.
- Assessment of cell growth, proliferation, migration, and invasion.
- Analysis of apoptosis rates and expression levels of metastasis-related proteins (MMP-2, MMP-9) and E-cadherin.
Main Results:
- Alpha-solanine significantly inhibited cancer cell growth, proliferation, migration, and invasion in a dose-dependent manner.
- Increased apoptotic rates were observed in alpha-solanine treated cells.
- Reduced expression of MMP-2 and MMP-9, and increased expression of E-cadherin were noted, suggesting inhibition of metastasis.
Conclusions:
- Alpha-solanine demonstrates significant anti-tumor efficacy against human esophageal carcinoma cells.
- The findings suggest alpha-solanine's potential as a therapeutic agent for esophageal carcinoma prevention and treatment.
