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Updated: May 27, 2026
08:07
Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
Published on: April 12, 2019
Expression and function of survivin in canine osteosarcoma
Jenette K Shoeneman1, E J Ehrhart, Jens C Eickhoff
1The Animal Cancer Center, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, USA.
Cancer Research
|November 10, 2011
Summary
This study shows that targeting survivin, a protein that promotes cancer growth, can effectively treat osteosarcoma. Canine models are superior for testing survivin-directed therapies against this deadly bone cancer.
Area of Science:
- Oncology
- Translational Medicine
- Molecular Biology
Background:
- Osteosarcoma presents a high mortality rate, necessitating novel therapeutic strategies.
- Survivin, an apoptosis inhibitor, is frequently upregulated in human cancers, driving proliferation.
- Effective translational models are crucial for evaluating new cancer treatments.
Purpose of the Study:
- To evaluate a canine osteosarcoma model for its translational utility in assessing survivin-directed therapies.
- To investigate the role of survivin expression in canine osteosarcoma.
- To determine the efficacy of survivin attenuation in combination with chemotherapy.
Main Methods:
- Comparative analysis of canine and human osteosarcoma characteristics (gross, microscopic, gene expression, signaling pathways).
- Correlation of survivin expression levels with histologic grade and mitotic index in canine osteosarcoma.
- Assessment of survivin attenuation effects on cell-cycle progression, apoptosis, mitotic arrest, and chemosensitivity in canine osteosarcoma cells.
- Evaluation of in vivo tumor control in canine models treated with survivin-targeted therapies and chemotherapy.
Main Results:
- Canine osteosarcoma models exhibit striking similarities to human disease, making them superior translational tools.
- Elevated survivin expression in canine osteosarcoma correlated with higher tumor grade, increased mitotic index, and shorter disease-free intervals.
- Survivin inhibition in canine osteosarcoma cells led to cell-cycle arrest, increased apoptosis, and enhanced chemosensitivity.
- Combined survivin-directed therapy and chemotherapy significantly improved tumor control in vivo.
Conclusions:
- Canine osteosarcoma serves as an accurate and valuable model for human osteosarcoma research.
- Survivin plays a critical role in osteosarcoma progression and represents a promising therapeutic target.
- Survivin-directed therapies hold significant potential for improving treatment outcomes in osteosarcoma patients.
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