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Updated: Jul 1, 2026
Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
Published on: April 12, 2019
Novel targets with potential therapeutic applications in osteosarcoma
1National Institutes of Health, National Cancer Institute, Pediatric Oncology Branch, Tumor Metastasis Biology Section, 37 Convent Drive, Bethesda, MD 20892, USA. khannac@mail.nih.gov
Abstract:
For patients with osteosarcoma, the development of metastases, often to the lungs, is the most common cause of death. Long-term outcomes for patients who present with localized or disseminated disease have largely remained unchanged over the past 20 years. Further improvements in outcome are not likely to come from intensification of cytotoxic chemotherapy; as such, new targets for treatment are needed. A view toward such targets in osteosarcoma may be constructed based on three common clinical features of the disease. These include the origin of osteosarcoma in the bone or primitive mesenchymal cells, the predictable process of metastatic progression characterized by this disease, and the development of metastatic lesions almost exclusively in the lung. It is likely and potentially favorable for some targets to be relevant for more than one process. This review summarizes novel targets under evaluation for the treatment of osteosarcoma based on these three features of the disease.
Insights
New treatments for osteosarcoma (bone cancer) are needed as outcomes haven't improved. This review explores novel therapeutic targets based on the disease's origin, metastasis patterns, and lung-specific spread.
Area of Science:
- Oncology
- Cancer Biology
- Skeletal Biology
Background:
- Osteosarcoma (bone cancer) metastasis, particularly to the lungs, is the primary cause of mortality.
- Current treatment strategies, including cytotoxic chemotherapy, have plateaued in improving long-term patient outcomes.
- Novel therapeutic targets are essential for advancing osteosarcoma treatment.
Purpose of the Study:
- To review emerging therapeutic targets for osteosarcoma.
- To identify targets based on the unique biological and clinical characteristics of osteosarcoma.
- To explore targets that may address multiple facets of osteosarcoma progression.
Main Methods:
- Literature review of preclinical and clinical studies.
- Analysis of osteosarcoma's cellular origin and metastatic pathways.
- Evaluation of lung-specific tropism in osteosarcoma metastasis.
Main Results:
- Identified key biological processes driving osteosarcoma development and spread.
- Highlighted potential therapeutic targets relevant to bone origin and mesenchymal cell precursors.
- Focused on targets addressing the characteristic lung metastasis of osteosarcoma.
Conclusions:
- Novel treatment strategies for osteosarcoma require targeting specific disease features.
- Understanding osteosarcoma's origin and metastatic behavior is crucial for identifying effective therapies.
- Further research into these novel targets may improve outcomes for osteosarcoma patients.
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