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Updated: Oct 21, 2025

Intratibial Osteosarcoma Cell Injection to Generate Orthotopic Osteosarcoma and Lung Metastasis Mouse Models
Published on: October 28, 2021
Tetrandrine suppresses the growth of human osteosarcoma cells by regulating multiple signaling pathways
Nan Wang1, Shengdong Yang2, Tao Tan3
1Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China.
Abstract:
Although osteosarcoma (OS) is the most common malignant tumor among juvenile bone tumors, its treatment plan and clinical outcome have not improved significantly in recent decades. Tetrandrine (TET), a Chinese medicine that is usually used in the therapy of silicosis, hypertension and arthritis, has been confirmed by many studies to possess potent antitumour growth properties, but there are different limitations when describing specific mechanisms. Here, we found that TET can obviously prevent the proliferation, migration and invasion of both 143B and MG63 cells and promote their apoptosis in vitro. Our results for luciferase reporter and Western blotting assays show that TET may exert its antitumour activity by regulating multiplex signaling pathways, including the MAPK/Erk, PTEN/Akt, Juk and Wnt signaling pathways. Furthermore, the regulatory effect of TET on OS cells and related signaling pathways was verified again in vivo. Our findings suggest that the anticancer function of TET on human OS may be mediated by its targeting of multiple signaling pathways and that TET may be used as a single drug or in combination with other drugs during the treatment of OS.
Insights
Tetrandrine (TET) effectively inhibits osteosarcoma (OS) cell growth, migration, and invasion while promoting apoptosis. This Chinese medicine targets multiple signaling pathways, showing promise for OS treatment.
Area of Science:
- Oncology
- Pharmacology
- Molecular Biology
Background:
- Osteosarcoma (OS) is the most common pediatric bone cancer with limited treatment advancements.
- Tetrandrine (TET), a traditional Chinese medicine, exhibits anticancer properties, but its mechanisms in OS are not fully elucidated.
Purpose of the Study:
- To investigate the efficacy and underlying mechanisms of Tetrandrine (TET) in treating osteosarcoma (OS).
Main Methods:
- In vitro assays assessed TET's effects on OS cell proliferation, migration, invasion, and apoptosis.
- Luciferase reporter and Western blotting assays identified targeted signaling pathways.
- In vivo studies validated TET's effects on OS cells and signaling pathways.
Main Results:
- TET significantly inhibited proliferation, migration, and invasion while promoting apoptosis in 143B and MG63 OS cells.
- TET modulated multiple signaling pathways, including MAPK/Erk, PTEN/Akt, Juk, and Wnt.
- In vivo experiments confirmed TET's regulatory effects on OS cells and associated signaling.
Conclusions:
- TET demonstrates potent anticancer activity against human osteosarcoma by targeting multiple signaling pathways.
- TET holds potential as a single agent or in combination therapy for osteosarcoma treatment.
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