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Published on: May 14, 2016
Nudol, a phenanthrene derivative from Dendrobium nobile, induces cell cycle arrest and apoptosis and inhibits
Yuying Zhang1, Qianqian Zhang1, Wei Xin2
1School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China.
Abstract:
Purpose: Osteosarcoma is the most common malignancy of the bone in children and adolescents. There is an urgent need for the development of novel drugs to treat it. Nudol(1), a phenanthrene compound from the traditional Chinese medicine, Dendrobium nobile, exhibited antiproliferative activity against osteosarcoma cells. Therefore, the aim of the present study was to investigate the role and underlying mechanism of nudol(1) as potential chemotherapy for osteosarcoma. Methods: Cell viability was determined by MTT assay. Cell-cycle phase distribution was analyzed by flow cytometry and Western blot. DAPI staining was used for morphology observation. Apoptosis was analysis via flow cytometry. The expression levels of mRNA and protein related to capase-mediated apoptotic pathway were detected by real-time PCR and western blotting. Migration was determined by wound healing assays. Results: Nudol(1) significantly decreased cell viability in several cancer cell lines. Moreover, nudol(1) caused cell cycle arrest at G2/M phase in U2OS cells, and it also induced cell apoptosis through the caspase-dependent pathway. In addition, treatment with nudol(1) suppressed the migration of U2OS cells. Conclusion: The present study, for the first time, demonstrated effects of nudol(1) on OS in vitro and the potential molecular mechanisms. Accordingly, nudol(1) might have the potential for further development as a lead compound against bone tumor.
Insights
Nudol, a compound from traditional Chinese medicine, effectively reduced osteosarcoma cell viability and migration. It also induced apoptosis and cell cycle arrest, showing potential as a novel chemotherapy for bone cancer.
Area of Science:
- Oncology
- Pharmacology
- Natural Products
Background:
- Osteosarcoma is a prevalent bone cancer in children and adolescents.
- Existing treatments necessitate the development of novel therapeutic agents.
- Nudol, a phenanthrene compound from *Dendrobium nobile*, displays antiproliferative effects on osteosarcoma cells.
Purpose of the Study:
- To investigate the therapeutic potential of nudol as a chemotherapy for osteosarcoma.
- To elucidate the underlying molecular mechanisms of nudol's action.
- To evaluate nudol's effects on osteosarcoma cell viability, cell cycle, apoptosis, and migration.
Main Methods:
- Cell viability assessed using MTT assay.
- Cell cycle analysis via flow cytometry and Western blot.
- Apoptosis detection by flow cytometry and caspase pathway analysis.
- Cell migration evaluated through wound healing assays.
Main Results:
- Nudol significantly reduced osteosarcoma cell viability.
- Nudol induced G2/M phase cell cycle arrest in U2OS cells.
- Nudol promoted apoptosis via a caspase-dependent pathway.
- Nudol inhibited U2OS cell migration.
Conclusions:
- Nudol demonstrates significant in vitro efficacy against osteosarcoma.
- Nudol's mechanisms involve cell cycle arrest and apoptosis induction.
- Nudol shows promise as a lead compound for developing new bone tumor treatments.
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