Related Experiment Video
Updated: Apr 27, 2026

Cytotoxic Efficacy of Photodynamic Therapy in Osteosarcoma Cells In Vitro
Published on: March 18, 2014
Cluster of differentiation 24 monoclonal antibody induces apoptosis in the osteosarcoma cells
1Department of Orthopedics, Yishui central hospital, Linyi, Shan Dong Province, China. zhanglinmzs@126.com.
Objectives:
Cluster of differentiation 24 (CD24) was overexpressed in osteosarcoma and positive CD24 expression correlates significantly with distant metastasis invasion and poor survival in osteosarcomas. We, therefore, suggested that CD24 would be a new molecular target for therapeutic strategies. In the present study, we aimed to investigate the effects of CD24 down-regulation using monoclonal antibodies (mAb) on apoptosis in osteosarcoma cells in vitro and in vivo.
Materials And Methods:
Osteosarcoma MG-63 cells were treated with Anti-CD24 mAb, and the effects on growth and apoptosis were evaluated in vitro and in vivo.
Results:
Anti-CD24 mAb could induce the apoptosis of cultured MG63 cells and anti-CD24 mAb treatment inhibited the tumor growth after cancer cell grafting and enhanced the cell apoptosis inside the tumor tissue.
Conclusions:
The findings showed that anti-CD24 mAb targeting therapy provides a new avenue toward treating osteosarcoma.
Insights
Targeting cluster of differentiation 24 (CD24) with monoclonal antibodies (mAb) induced apoptosis in osteosarcoma cells. This CD24 mAb therapy inhibited tumor growth and enhanced apoptosis in vivo, offering a new treatment strategy for osteosarcoma.
Area of Science:
- Oncology
- Molecular Biology
- Immunotherapy
Background:
- Cluster of differentiation 24 (CD24) is overexpressed in osteosarcoma.
- CD24 expression correlates with metastasis and poor survival in osteosarcoma patients.
- CD24 represents a potential molecular target for osteosarcoma therapy.
Purpose of the Study:
- To investigate the therapeutic potential of down-regulating CD24 using monoclonal antibodies (mAb).
- To evaluate the effects of anti-CD24 mAb on osteosarcoma cell apoptosis in vitro and in vivo.
Main Methods:
- Osteosarcoma MG-63 cells were treated with anti-CD24 mAb.
- In vitro and in vivo studies assessed the impact on cell growth and apoptosis.
- Tumor growth inhibition was evaluated after cancer cell grafting in vivo.
Main Results:
- Anti-CD24 mAb treatment induced apoptosis in cultured MG-63 cells.
- In vivo, anti-CD24 mAb treatment inhibited tumor growth.
- Enhanced apoptosis within tumor tissue was observed following anti-CD24 mAb administration.
Conclusions:
- Targeting CD24 with monoclonal antibodies is a promising therapeutic strategy for osteosarcoma.
- Anti-CD24 mAb therapy demonstrates efficacy in reducing tumor growth and inducing apoptosis.
- This approach offers a new avenue for osteosarcoma treatment.
Related Concept Videos
The Intrinsic Apoptotic Pathway
Targeted Cancer Therapies
There are several types of targeted therapies against...

