Vascular Mimicry: A Novel Neovascularization Mechanism Driving Anti-Angiogenic Therapy (AAT) Resistance in Glioblastoma

被引:95
作者
Angara, Kartik [1 ]
Borin, Thaiz F. [1 ]
Arbab, Ali S. [1 ]
机构
[1] Augusta Univ, Dept Biochem & Mol Biol, Georgia Canc Ctr, Lab Tumor Angiogenesis, 1410 Laney Walker Blvd,CN3141, Augusta, GA 30912 USA
来源
TRANSLATIONAL ONCOLOGY | 2017年 / 10卷 / 04期
基金
美国国家卫生研究院;
关键词
STEM-LIKE CELLS; INHIBITS TUMOR-GROWTH; VASCULOGENIC MIMICRY; ENDOTHELIAL-CELLS; COOPERATIVE INTERACTIONS; MOLECULAR DETERMINANTS; KINASE INHIBITOR; PHASE-II; IN-VIVO; EXPRESSION;
D O I
10.1016/j.tranon.2017.04.007
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Glioblastoma (GBM) is a hypervascular neoplasia of the central nervous system with an extremely high rate of mortality. Owing to its hypervascularity, anti-angiogenic therapies (AAT) have been used as an adjuvant to the traditional surgical resection, chemotherapy, and radiation. The benefits of AAT have been transient and the tumors were shown to relapse faster and demonstrated particularly high rates of AAT therapy resistance. Alternative neovascularization mechanisms were shown to be at work in these resilient tumors to counter the AAT therapy insult. Vascular Mimicry (VM) is the uncanny ability of tumor cells to acquire endothelial-like properties and lay down vascular patterned networks reminiscent of host endothelial blood vessels. The VM channels served as an irrigation system for the tumors to meet with the increasing metabolic and nutrient demands of the tumor in the event of the ensuing hypoxia resulting from AAT. In our previous studies, we have demonstrated that AAT accelerates VM in GBM. In this review, we will focus on the origins of VM, visualizing VM in AAT-treated tumors and the development of VM as a resistance mechanism to AAT.
引用
收藏
页码:650 / 660
页数:11
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