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Version: 17.06d (Release date: 2017-06-26)
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Technetium Tc 99m-3PRGD2 (Code C104007)

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Terms & Properties

Preferred Name: Technetium Tc 99m-3PRGD2

Definition: A radiopharmaceutical agent comprised of a pegylated arginine-glycine-aspartic acid (RGD) dimer (PRGD2) labeled with technetium Tc 99m, with potential alphaVbeta3 integrin imaging activity when used with single photon emission computed tomography (SPECT). After intravenous administration of technetium Tc 99m-3PRGD2, the RGD moiety binds to alphaVbeta3 integrin on the cell membrane via the cyclic RGD motif. Upon PET imaging, alphaVbeta3 integrin-expressing tumor cells can be visualized and expression levels can be quantified. Compared to other radiolabeled RGD-containing peptides, this agent shows an increased affinity for alphaVbeta3 integrin, enhanced tumor uptake as well as improved pharmacokinetics. AlphaVbeta3 integrin, a member of the integrin receptor family, is overexpressed on certain tumor cells and tumor endothelial cells while minimally or not expressed on healthy, normal cells; this receptor plays a key role in angiogenesis, tumor proliferation and survival.

Label: Technetium Tc 99m-3PRGD2

NCI Thesaurus Code: C104007 (Search for linked caDSR metadata)  (search value sets)

NCI Metathesaurus Link: CL438389  (see NCI Metathesaurus info)

Synonyms & Abbreviations: (see Synonym Details)
(99m)Tc-PEG(4)-E[PEG(4)-c(RGDfK)](2) ((99m)Tc-3PRGD2)
99mTc-3PRGD2
Technetium Tc 99m-3PRGD2

External Source Codes: 
PDQ Closed Trial Search ID 743647
PDQ Open Trial Search ID 743647 (check for NCI PDQ open clinical trial info)
NCI META CUI CL438389

Other Properties:
     Name Value (qualifiers indented underneath)
code C104007
Semantic_Type Pharmacologic Substance

Additional Concept Data: 
Defined Fully by Roles: No  

URL: https://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&code=C104007

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