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Vascular normalization: a real benefit?
1Department of Human Anatomy and Histology, University of Bari Medical School, Bari, Italy. ribatti@anatomia.uniba.it
Cancer Chemotherapy and Pharmacology
|June 4, 2011
Summary
Combining anti-vascular endothelial growth factor (VEGF) antibodies with chemotherapy shows synergistic effects. However, tumor blood vessel normalization from VEGF inhibition doesn't always benefit cancer treatment, potentially hindering drug delivery.
Area of Science:
- Oncology
- Cancer Biology
- Vascular Biology
Background:
- Antibodies targeting vascular endothelial growth factor (VEGF) combined with chemotherapy offer synergistic cytotoxicity in various cancers.
- VEGF inhibition is known to induce vascular normalization in tumors.
Purpose of the Study:
- To review and analyze the actual benefits of tumor vascular normalization induced by VEGF inhibition in combination with chemotherapy.
- To investigate whether vascular normalization consistently improves therapeutic outcomes in cancer treatment.
Main Methods:
- Literature review of studies investigating VEGF inhibition, vascular normalization, and chemotherapy efficacy.
- Analysis of data correlating tumor vascular normalization with treatment outcomes.
Main Results:
- Vascular normalization resulting from VEGF inhibition is not consistently associated with improved therapeutic benefits.
- In certain cases, such as cerebral tumors, normalization can restore low permeability, impeding chemotherapeutic drug delivery.
Conclusions:
- The therapeutic benefit of VEGF-targeted vascular normalization in cancer treatment requires careful consideration.
- Strategies must account for potential negative impacts on drug delivery, especially in specific tumor types like brain tumors.
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