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Comparative aspects of osteosarcoma. Dog versus man
S J Withrow1, B E Powers, R C Straw
1Colorado State University, College of Veterinary Medicine and Biomedical Sciences, Department of Clinical Sciences, Fort Collins 80523.
Clinical Orthopaedics and Related Research
|September 1, 1991
Summary
Canine osteosarcoma closely mirrors human osteosarcoma in many aspects, offering a valuable model for studying this aggressive bone cancer. This comparison aids in understanding human osteosarcoma progression and treatment strategies.
Area of Science:
- Comparative oncology
- Veterinary medicine
- Skeletal biology
Background:
- Canine osteosarcoma (CO) shares significant similarities with human osteosarcoma (HO).
- Understanding these similarities can provide insights into human disease mechanisms.
- CO occurs frequently in dogs, presenting a naturally occurring model for HO research.
Purpose of the Study:
- To highlight the striking resemblances between canine and human osteosarcoma.
- To underscore the potential of canine osteosarcoma as a translational research model.
- To compare key epidemiological and pathological features of CO and HO.
Main Methods:
- Comparative analysis of clinical and pathological data from canine and human osteosarcoma cases.
- Review of existing literature on osteosarcoma in both species.
- Identification of shared and divergent characteristics.
Main Results:
- CO and HO share similarities in sex predilection, tumor location (appendicular, metaphyseal), high-grade histology, and aneuploidy.
- Both exhibit high metastatic rates (≥80% with amputation alone), with the lung as the primary site.
- Adjuvant chemotherapy improves survival in both species.
Conclusions:
- Canine osteosarcoma serves as a highly comparable, spontaneously occurring model for human osteosarcoma.
- Key differences include age of onset and faster metastasis time in dogs.
- Further research using CO models can enhance the understanding and treatment of human osteosarcoma.