NCI Drug Dictionary
The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.
- technetium Tc 99 hydrazinonicotinamide-tricine-linked interleukin-2
A radioconjugate composed of the cytokine interleukin-2 (IL-2) conjugated to the bifunctional chelating agent succinimidyl-6-hydrazinopyridine-3-carboxylate (HYNIC-NHS) and co-ligand tricine and labeled with the radioisotope technetium Tc 99m (99mTc-HYNIC-IL2), that can potentially be used as a diagnostic agent to detect tumor inflammation. Upon intravenous administration, IL-2 selectively binds to the IL-2 receptor (IL-2R) expressed on tumor infiltrating lymphocytes (TILs); upon internalization, the Tc99m moiety can be visualized using radioimaging, which allows the quantification of TILs expressing IL-2R. This agent detects tumor enlargement due to invasion by TILs and not tumor progression. Check for active clinical trials using this agent. (NCI Thesaurus)