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Published on: March 18, 2014
[Experimental study on the apoptotic effect of arsenic trioxide on human osteosarcoma MG-63 cells]
Tao Xiao1, Kang-hua Li, Jian-zhen Fang
1Department of Othopaedics, Xiangya Hospital, Central South University, Changsha 410008, China.
Objective:
To study the apoptotic effect of arsenic trioxide(As2 O3) on human ostrosarcoma MG-63 cells.
Methods:
The MTT reduction test, transmission electron microscopy and agarose gel electrophoresis were applied to observe the apoptotic changes of human osteosarcoma line MG-63 induced by As2 O3.
Results:
Typical apoptotic cellular changes were found after As2 O3 treatment. Transmission electron miroscopy showed that nucleolus disappeared and chromatin condensed under the nucleonic membrane. Agarose gel electrophorsis showed a "ladder" strand of DNA, a special phenomenon of cellular apoptosis. The above-mentioned changes were not found in the control group.
Conclusion:
As2 O3 can induce apoptosis of human osteosarcoma MG-63 cells. Further studies are to be carried out on its mechanism.
Insights
Arsenic trioxide (As2 O3) effectively induces apoptosis in human osteosarcoma MG-63 cells. This study observed characteristic cellular changes, confirming As2 O3 as a potential agent for osteosarcoma treatment.
Area of Science:
- Biochemistry
- Cell Biology
- Oncology
Background:
- Osteosarcoma is a primary malignant bone tumor.
- Developing effective therapeutic agents for osteosarcoma is crucial.
Purpose of the Study:
- To investigate the apoptotic effects of arsenic trioxide (As2 O3) on human osteosarcoma MG-63 cells.
Main Methods:
- MTT reduction assay to assess cell viability.
- Transmission electron microscopy (TEM) for ultrastructural analysis.
- Agarose gel electrophoresis to detect DNA fragmentation.
Main Results:
- As2 O3 treatment induced typical apoptotic morphological changes in MG-63 cells.
- TEM revealed nucleolus disappearance and chromatin condensation.
- Agarose gel electrophoresis showed DNA laddering, indicative of apoptosis.
Conclusions:
- Arsenic trioxide (As2 O3) demonstrates a significant capacity to induce apoptosis in human osteosarcoma MG-63 cells.
- Further research into the precise mechanisms of As2 O3-induced apoptosis is warranted.
