Ionizing Radiation and Angiogenesis Inhibition in Breast Cancer Models
Author Information
Author(s): Riesterer Oliver, Oehler-Jänne Christoph, Jochum Wolfram, Broggini-Tenzer Angela, Vuong Van, Pruschy Martin
Primary Institution: University Hospital Zurich
Hypothesis
The combination of ionizing radiation and VEGF receptor inhibitors will enhance treatment efficacy in mammary carcinoma models.
Conclusion
The study shows that combining ionizing radiation with VEGF-receptor tyrosine kinase inhibitors is an effective treatment strategy for both spontaneous and allograft mammary tumors.
Supporting Evidence
- The combined treatment resulted in a supraadditive tumor response.
- Spontaneous tumors were more radiosensitive than allograft tumors.
- The enhancement factor for the combined treatment was similar in both tumor models.
Takeaway
This study found that using radiation together with a specific cancer drug can help treat breast cancer better than using either one alone.
Methodology
Mice were treated with ionizing radiation and the VEGFR inhibitor PTK787, and tumor growth was measured in both spontaneous and allograft models.
Limitations
The study primarily uses mouse models, which may not fully replicate human tumor biology.
Participant Demographics
Female, heterozygous offspring of FVB-wild type and FVB-Tg(MMTV/c-neu) mice.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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