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- W4220695985 endingPage "676" @default.
- W4220695985 startingPage "676" @default.
- W4220695985 abstract "The microenvironment of solid tumors is dynamic and frequently contains pockets of low oxygen levels (hypoxia) surrounded by oxygenated tissue. Indeed, a compromised vasculature is a hallmark of the tumor microenvironment, creating both spatial gradients and temporal variability in oxygen availability. Notably, hypoxia associates with increased metastasis and poor survival in patients. Therefore, to aid therapeutic decisions and better understand hypoxia's role in cancer progression, it is critical to identify endogenous biomarkers of hypoxia to spatially phenotype oncogenic lesions in human tissue, whether precancerous, benign, or malignant. Here, we characterize the glucose transporter GLUT3/SLC2A3 as a biomarker of hypoxic prostate epithelial cells and prostate tumors. Transcriptomic analyses of non-tumorigenic, immortalized prostate epithelial cells revealed a highly significant increase in GLUT3 expression under hypoxia. Additionally, GLUT3 protein increased 2.4-fold in cultured hypoxic prostate cell lines and was upregulated within hypoxic regions of xenograft tumors, including two patient-derived xenografts (PDX). Finally, GLUT3 out-performs other established hypoxia markers; GLUT3 staining in PDX specimens detects 2.6-8.3 times more tumor area compared to a mixture of GLUT1 and CA9 antibodies. Therefore, given the heterogeneous nature of tumors, we propose adding GLUT3 to immunostaining panels when trying to detect hypoxic regions in prostate samples." @default.
- W4220695985 created "2022-04-03" @default.
- W4220695985 creator A5004434437 @default.
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- W4220695985 creator A5090625332 @default.
- W4220695985 date "2022-03-10" @default.
- W4220695985 modified "2023-10-18" @default.
- W4220695985 title "GLUT3/SLC2A3 Is an Endogenous Marker of Hypoxia in Prostate Cancer Cell Lines and Patient-Derived Xenograft Tumors" @default.
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- W4220695985 doi "https://doi.org/10.3390/diagnostics12030676" @default.
- W4220695985 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35328229" @default.
- W4220695985 hasPublicationYear "2022" @default.
- W4220695985 type Work @default.