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Biodistribution and pharmacokinetics of S-35-labeled 5-thio-D-glucose in hamsters bearing pancreatic tumors

Journal Article · · J. Nucl. Med.; (United States)
OSTI ID:5760059
5-thio-D-glucose (5-TDG) exerts profound effects on rapidly metabolizing tissues. We have used liquid scintillation counting to study the tissue distribution and pharmacokinetics of S-35-labeled 5-TDG in hamster models of pancreatic tumors. In the normal hamster, initial uptake of S-35 activity into kidney, liver, and blood was high, but rapidly decreased with time. The pancreatic uptake (% dose/g) never exceeded 0.75%. This level occurred only at the earliest times after administration. Uptake in all three tumor models exceeded that in pancreatic tissue within 15 min of injection. The highest tumor-to-pancreas ratio was seen in the duct-tumor model, which also exhibited the most favorable tumor-to-tissue ratio when compared with kidney, liver, and muscle. Favorable ratios were most pronounced at 6 and 24 hr after injection. These studies provide impetus for the use of 5-TDG as a model compound for the synthesis of potentially useful agents for clinical detection of pancreatic tumors.
Research Organization:
Hahnemann Medical Coll., Philadelphia, PA
OSTI ID:
5760059
Journal Information:
J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 20:7; ISSN JNMEA
Country of Publication:
United States
Language:
English