Low-dose angiostatic tyrosine kinase inhibitors improve photodynamic therapy for cancer: lack of vascular normalization.

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Serval ID
serval:BIB_823C6E755633
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Low-dose angiostatic tyrosine kinase inhibitors improve photodynamic therapy for cancer: lack of vascular normalization.
Journal
Journal of Cellular and Molecular Medicine
Author(s)
Weiss A., van Beijnum J.R., Bonvin D., Jichlinski P., Dyson P.J., Griffioen A.W., Nowak-Sliwinska P.
ISSN
1582-4934 (Electronic)
ISSN-L
1582-1838
Publication state
Published
Issued date
2014
Peer-reviewed
Oui
Volume
18
Number
3
Pages
480-491
Language
english
Notes
Publication types: Journal Article PDF: Original Article
Abstract
Photodynamic therapy (PDT) is an effective clinical treatment for a number of different cancers. PDT can induce hypoxia and inflammation, pro-angiogenic side effects, which may counteract its angio-occlusive mechanism. The combination of PDT with anti-angiogenic drugs offers a possibility for improved anti-tumour outcome. We used two tumour models to test the effects of the clinically approved angiostatic tyrosine kinase inhibitors sunitinib, sorafenib and axitinib in combination with PDT, and compared these results with the effects of bevacizumab, the anti-VEGF antibody, for the improvement of PDT. Best results were obtained from the combination of PDT and low-dose axitinib or sorafenib. Molecular analysis by PCR revealed that PDT in combination with axitinib suppressed VEGFR-2 expression in tumour vasculature. Treatment with bevacizumab, although effective as monotherapy, did not improve PDT outcome. In order to test for tumour vessel normalization effects, axitinib was also applied prior to PDT. The absence of improved PDT outcome in these experiments, as well as the lack of increased oxygenation in axitinib-treated tumours, suggests that vascular normalization did not occur. The current data imply that there is a future for certain anti-angiogenic agents to further improve the efficacy of photodynamic anti-cancer therapy.
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Web of science
Create date
06/04/2014 15:39
Last modification date
20/08/2019 14:42
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