Journal
CANCER RESEARCH
Volume 67, Issue 19, Pages 8980-8984Publisher
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/0008-5472.CAN-07-0895
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Funding
- NCI NIH HHS [CA116659] Funding Source: Medline
- NINDS NIH HHS [NS047409, NS054276] Funding Source: Medline
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Highly tumorigenic subpopulations of several solid cancers share characteristics with somatic stem cells. We showed recently that cancer stem cells, or tumor-initiating cells, derived from human glioblastoma surgical specimens and xenografts display resistance to radiation due to increased activation of the DNA damage checkpoint. We additionally showed that these same tumor subpopulations promote tumor angiogenesis through increased expression of vascular endothelial growth factor. These studies and subsequent reports from other researchers support critical roles for cancer stem cells in determining tumor response to therapy. Hypoxia and stem cell maintenance pathways may provide therapeutic targets to sensitize cancer stem cells to cytotoxic therapies to improve cancer patient treatments.
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