Endothelial Leakiness and Pore Size in Breast Cancer
Author Information
Author(s): E.E. Uzgiris
Primary Institution: Rensselaer Polytechnic Institute
Hypothesis
How does the permeability of tumor endothelial cells vary with probe size?
Conclusion
The study found a steep power law dependence of endothelial pore size distribution on probe size in a rat mammary adenocarcinoma model.
Supporting Evidence
- The endothelial pore distribution has a steep power law dependence on size, with an exponent of -4.1.
- The model of large pore dominance in tumor leakiness is rejected for this tumor model.
- Permeability measurements showed a significant difference in uptake rates based on probe size.
Takeaway
This study looked at how easily different sized particles can pass through blood vessels in tumors, finding that smaller particles can get through much more easily.
Methodology
Dynamic contrast enhancement MRI was used to measure the permeability of various contrast agents in a rat mammary carcinoma model.
Limitations
The study focused only on a specific rat model and may not generalize to all tumor types.
Participant Demographics
Female Fisher 344 rats were used in the study.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
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