Effects of Anti-VEGF on Predicted Antibody Biodistribution: Roles of Vascular Volume, Interstitial Volume, and Blood Flow
2011

Effects of Anti-VEGF on Antibody Distribution in Mice

Sample size: 5 publication 10 minutes Evidence: moderate

Author Information

Author(s): Boswell C. Andrew, Ferl Gregory Z., Mundo Eduardo E., Bumbaca Daniela, Schweiger Michelle G., Theil Frank-Peter, Fielder Paul J., Khawli Leslie A.

Primary Institution: Genentech Inc.

Hypothesis

What are the effects of anti-VEGF treatment on tissue vascular volumes and blood flow in mice?

Conclusion

Anti-VEGF treatment did not significantly affect the vascular volumes of tissues in mice, except for a borderline significant increase in hepatic blood flow.

Supporting Evidence

  • Anti-VEGF had no significant effect on the fractional vascular volumes of any tissues studied.
  • A borderline significant increase in mean hepatic blood flow was observed.
  • Physiologically-based pharmacokinetic modeling showed substantial changes in predicted tissue exposure based on measured parameters.

Takeaway

The study looked at how a cancer treatment affects blood flow and tissue volume in mice, and found that it didn't change much at all.

Methodology

The study used radiopharmaceuticals to measure tissue vascular volumes and blood flow in mice treated with an anti-VEGF antibody.

Potential Biases

Potential bias in the interpretation of physiological parameters due to reliance on literature values for some measurements.

Limitations

The study's findings may not apply to all physiological conditions due to the specific model used and the limitations of the measurement techniques.

Participant Demographics

Female beige nude X-linked immunodeficient (XID) mice aged 6–8 weeks.

Statistical Information

P-Value

p=0.048

Statistical Significance

p>0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0017874

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