Related Experiment Videos
[Anticarcinogenic effect of 20(R)-ginsenoside Rg3 on induced hepatocellular carcinoma in rats]
Xiao Li1, Yong-song Guan, Xiang-ping Zhou
1Department of Radiology, West China Hospital, Sichuan University, Chengdu, 610041, China.
Objective:
To explore the anticarcinogenic mechanism of 20(R)-ginsenoside Rg3 in induced liver tumor in SD rat.
Methods:
Thirty-five SD rats with induced hepatocellular carcinoma were divided into a control group and 3 dosage groups according to the dosing levels of 20(R)-ginsenoside Rg3. The tumour volume was measured by MR imaging. The apoptotic rat and S-phase fraction and diploid of tumor cell were measured with flow cytometry. Protein expression of PCNA and TNF were evaluated with immunohistochemistry.
Results:
There was significant difference in tumour volume between the high dosage group and the control group. The average apoptotic rates were 11.08+/-3.78, 13.57+/-3.34, 27.35+/-16.04 and the S-phase fractions were 23.98+/-9.44, 19.73+/-6.62, 14.09+/-3.48 in the low-, medium-, and high-dosage groups respectively. The apoptotic rate was significantly higher in the high-dosage group than in the medium-dosage group and low-dosage group. Before-after comparison showed that the anti-proliferative effects of 20(R)-ginsenoside Rg3 were significant in three treatment groups. The higher positive rats of protein expression with PCNA and TNF were significant difference in the high-dosage group compared to those in the low-dosage group. No significant difference between the medium-dosage group and the low-dosage group.
Conclusion:
20(R)-ginsenoside Rg3 can noticeably inhibit the proliferation of tumor cells, and efficaciously induce the apoptosis and facilitate necrosis of the tumor cells, and there appears to be a dose dependent effect.
Insights
20(R)-ginsenoside Rg3 effectively inhibits liver tumor cell proliferation and induces apoptosis in rats. This anticarcinogenic effect demonstrates a dose-dependent relationship, offering potential for cancer treatment.
Area of Science:
- Pharmacology
- Oncology
- Natural Products
Background:
- Hepatocellular carcinoma (HCC) is a significant global health concern.
- Ginsenosides, particularly 20(R)-ginsenoside Rg3, are natural compounds with potential therapeutic properties.
- Understanding the anticarcinogenic mechanisms of natural compounds is crucial for developing novel cancer therapies.
Purpose of the Study:
- To investigate the anticarcinogenic mechanism of 20(R)-ginsenoside Rg3 in a rat model of induced liver cancer.
- To evaluate the effects of 20(R)-ginsenoside Rg3 on tumor volume, cell proliferation, and apoptosis.
Main Methods:
- Hepatocellular carcinoma was induced in Sprague-Dawley (SD) rats.
- Rats were divided into control and three dosage groups of 20(R)-ginsenoside Rg3.
- Tumor volume, apoptotic rates, S-phase fraction, and protein expression (PCNA, TNF) were assessed using MR imaging, flow cytometry, and immunohistochemistry.
Main Results:
- A significant reduction in tumor volume was observed in the high-dosage group compared to controls.
- Apoptotic rates increased significantly with higher doses of 20(R)-ginsenoside Rg3.
- Significant anti-proliferative effects were noted across all treatment groups, with dose-dependent increases in apoptosis and necrosis markers.
Conclusions:
- 20(R)-ginsenoside Rg3 demonstrates notable inhibition of tumor cell proliferation in induced liver cancer.
- The compound effectively induces tumor cell apoptosis and necrosis.
- A clear dose-dependent effect was observed, highlighting its potential as an anticarcinogenic agent.
