2009
DOI: 10.1038/sj.bjc.6604929
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Why are tumour blood vessels abnormal and why is it important to know?

Abstract: Tumour blood vessels differ from their normal counterparts for reasons that have received little attention. We report here that they are of at least six distinct types, we describe how each forms, and, looking forward, encourage the targeting of tumour vessel subsets that have lost their vascular endothelial growth factor-A (VEGF-A) dependency and so are likely unresponsive to anti-VEGF-A therapies.

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Cited by 513 publications
(462 citation statements)
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“…The microenvironmental abundance of VEGF and other proangiogenic factors drives continual angiogenesis and the production of an abnormal blood vessel network (Jain 2005a;Nagy et al 2009). Structurally, vessels are often dilated, weave a tortuous path, and show heterogeneity of distribution such that certain areas within a tumor are hypovascular and others hypervascular (Less et al 1991(Less et al , 1997Yuan et al 1996;Tong et al 2004;Jain 2005b;Baish et al 2011).…”
Section: Vascular Abnormalities In Solid Tumorsmentioning
confidence: 99%
“…The microenvironmental abundance of VEGF and other proangiogenic factors drives continual angiogenesis and the production of an abnormal blood vessel network (Jain 2005a;Nagy et al 2009). Structurally, vessels are often dilated, weave a tortuous path, and show heterogeneity of distribution such that certain areas within a tumor are hypovascular and others hypervascular (Less et al 1991(Less et al , 1997Yuan et al 1996;Tong et al 2004;Jain 2005b;Baish et al 2011).…”
Section: Vascular Abnormalities In Solid Tumorsmentioning
confidence: 99%
“…Solid tumors possess unique pathophysiological vasculatures that cannot be found in normal tissues or organs [1], including the hyper vasculatures, the defective vascular architecture, the lack of lymphatic drainage and the extensive production of a number of permeability mediators [2][3][4][5]. These characters are known as the enhanced permeability and retention (EPR) effects that have been widely used to enhance the tumor selectivity of antitumor nanomedicines [6][7][8].…”
Section: Introductionmentioning
confidence: 99%
“…These include disorganization of the vascular architecture, lack of apparent separation of arterioles from venules, lack of appropriate coverage of perivascular (mural) cells, incomplete basement membrane, and high leakiness (1)(2)(3)(4). These pathological features of the tumor vasculature dictate the abnormal microenvironment within tumor tissues that often produce an imbalanced ratio between angiogenic factors and inhibitors (5).…”
mentioning
confidence: 99%