Abstract:
:The recent landmark Phase III clinical trial with a VEGF-specific antibody suggests that antiangiogenic therapy must be combined with cytotoxic therapy for the treatment of solid tumors. However, there are no guidelines for optimal scheduling of these therapies. Here we show that VEGFR2 blockade creates a "normalization window"--a period during which combined radiation therapy gives the best outcome. This window is characterized by an increase in tumor oxygenation, which is known to enhance radiation response. During the normalization window, but not before or after it, VEGFR2 blockade increases pericyte coverage of brain tumor vessels via upregulation of Ang1 and degrades their pathologically thick basement membrane via MMP activation.
journal_name
Cancer Celljournal_title
Cancer cellauthors
Winkler F,Kozin SV,Tong RT,Chae SS,Booth MF,Garkavtsev I,Xu L,Hicklin DJ,Fukumura D,di Tomaso E,Munn LL,Jain RKdoi
10.1016/j.ccr.2004.10.011keywords:
subject
Has Abstractpub_date
2004-12-01 00:00:00pages
553-63issue
6eissn
1535-6108issn
1878-3686pii
S1535610804003058journal_volume
6pub_type
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