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Abstract #0841

Hyperpolarized δ-[1-13C]-gluconolactone reports on TERT expression and response to therapy in brain tumors

Georgios Batsios1, Celine Taglang1, Anne Marie Gillespie1, and Pavithra Viswanath1
1University of California, San Francisco, San Francisco, CA, United States

Synopsis

Keywords: Hyperpolarized MR (Non-Gas), Cancer, animals, preclinical, brain, metabolismTERT expression is essential for telomere maintenance and uncontrolled tumor proliferation in oligodendrogliomas. TERT is an attractive therapeutic target and the drug 6-thio-2’-deoxyguanosine that disrupts telomere maintenance is in clinical trials for cancer. We previously showed that TERT expression is associated with upregulation of the pentose phosphate pathway in oligodendrogliomas. Here, we have established the ability of hyperpolarized δ-[1-13C]-gluconolactone, a probe of the pentose phosphate pathway, to assess TERT expression and response to 6-thio-2’-deoxyguanosine in oligodendrogliomas in vivo. Our findings provide a non-invasive method of imaging a hallmark of cancer and have the potential to improve management of oligodendroglioma patients.

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