Effects of Misonidazole and Tumor Necrosis Factor on Tumor Blood Flow in Mice
Author Information
Author(s): S. Fujimoto, K. Kobayashi, M. Takahashi, C. Konno, M. Kokubun, M. Ohta, R.D. Shrestha, S. Kiuchi
Primary Institution: Chiba University
Hypothesis
The study investigates the effects of misonidazole and recombinant human tumor necrosis factor on tumor blood flow when combined with hyperthermia.
Conclusion
Misonidazole and tumor necrosis factor combined with hyperthermia significantly decrease tumor blood flow and may enhance tumor regression.
Supporting Evidence
- Misonidazole plus hyperthermia decreased blood flow to 15-30% of control at 43.5°C.
- rh-TNF plus hyperthermia decreased blood flow to 10-20% of control at 43.5°C.
- Complete tumor regression occurred in 42% of mice treated with rh-TNF plus hyperthermia at 43.5°C.
Takeaway
This study shows that heating tumors while giving certain drugs can make the blood flow to the tumor drop a lot, which might help shrink the tumor.
Methodology
Mice with human gastric cancer were treated with misonidazole or tumor necrosis factor before hyperthermia, and blood flow was measured using a hydrogen diffusion method.
Limitations
The study was conducted on mice, which may not fully represent human responses.
Participant Demographics
BALB/c nu/nu mice aged 5 to 6 weeks.
Statistical Information
P-Value
0.022 < P < 0.047
Statistical Significance
p<0.05
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