Brain-specific angiogenesis inhibitor 1 suppresses tumor growth
Author Information
Author(s): Duda D G, Sunamura M, Lozonschi L, Yokoyama T, Yatsuoka T, Motoi F, Horii A, Tani K, Asano S, Nakamura Y, Matsuno S
Primary Institution: Tohoku University Medical School
Hypothesis
Brain-specific angiogenesis inhibitor 1 may act as a mediator in the local angiogenesis balance.
Conclusion
Overexpression of brain-specific angiogenesis inhibitor 1 significantly suppresses tumor angiogenesis and delays tumor growth in immunodeficient mice.
Supporting Evidence
- BAI1 expression is present in some normal tissues but reduced or lost in tumor tissues.
- BAI1 overexpression delayed tumor growth significantly in immunodeficient mice.
- Immunohistochemical analysis confirmed a reduction in microvessel density in BAI1-overexpressing tumors.
- Transfection of wild-type p53 restored BAI1 expression in some cancer cell lines.
Takeaway
Scientists found that a special protein can stop tumors from growing by blocking the blood vessels they need.
Methodology
The study involved transfecting BAI1 into pancreatic cancer cells and observing its effects on tumor growth in immunodeficient mice.
Limitations
The study did not document the long-term effects of BAI1 expression in vivo.
Participant Demographics
The study involved human pancreatic tumor tissue samples from 14 patients.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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