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In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice
Published on: August 23, 2019
The effect of earthworm extract on mice S180 tumor growth and apoptosis
Zhenhan Deng1, Shanshan Gao2, Xiang Xiao3
1Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China; Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, Guangdong, China.
Abstract:
Great efforts have been made to explore the potential treatment for cancers, and the most common therapies include surgery, chemotherapy and radiotherapy. As an alternative medication, earthworms have drawn increased attention considering its abundance in resource, easy access and minor side effects compared to traditional therapies. However, few studies had focused on the antitumor effect of earthworm-derived components. The purpose of this study is to investigate whether earthworm extract has an effect on tumor cell apoptosis and growth. Earthworm extract (EE) was purified through multiple steps of centrifugation and chromatography. Mice were inoculated with ascitic fluid derived from mice inoculated with S180 sarcoma tumor cells and fed orally with different amounts of EE for 25 days. Tumor samples were analyzed for size and cell apoptosis. And we found that the weight and sizes of tumor decreased gradually as the amount of EE administered increased. More apoptotic cells and lowered level of lactate dehydrogenase (LDH), a biomarker of tumor invasiveness, was detected in EE-treated group than the untreated group. Our results suggested that EE could dramatically promote tumor apoptosis and reduce tumor size in vivo, suggesting a novel alternative therapy for cancer patients.
Insights
Earthworm extract (EE) shows potential as an alternative cancer treatment by significantly reducing tumor size and promoting cancer cell apoptosis in mice. This natural compound offers a promising avenue for novel cancer therapies.
Area of Science:
- Biomedical Science
- Pharmacology
- Cancer Research
Background:
- Cancer treatment commonly involves surgery, chemotherapy, and radiotherapy.
- Earthworm extract (EE) is gaining attention as a potential alternative therapy due to its accessibility and fewer side effects.
- Limited research exists on the antitumor effects of earthworm-derived compounds.
Purpose of the Study:
- To investigate the effect of earthworm extract (EE) on tumor cell apoptosis and growth.
- To evaluate EE as a potential novel cancer treatment.
Main Methods:
- Earthworm extract (EE) was purified using centrifugation and chromatography.
- Mice were inoculated with S180 sarcoma tumor cells and treated orally with varying doses of EE for 25 days.
- Tumor samples were analyzed for size, cell apoptosis, and lactate dehydrogenase (LDH) levels.
Main Results:
- A dose-dependent decrease in tumor weight and size was observed with EE administration.
- Increased tumor cell apoptosis was detected in the EE-treated group.
- Lowered lactate dehydrogenase (LDH) levels, indicating reduced tumor invasiveness, were found in EE-treated mice.
Conclusions:
- Earthworm extract (EE) significantly promotes tumor apoptosis and reduces tumor size in vivo.
- EE demonstrates potential as a novel alternative therapeutic agent for cancer patients.
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