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- B880afb42249b4e478be9f7b5ef098096 NCIT_P378 "NCI" @default.
- B880afb42249b4e478be9f7b5ef098096 type Axiom @default.
- B880afb42249b4e478be9f7b5ef098096 annotatedProperty IAO_0000115 @default.
- B880afb42249b4e478be9f7b5ef098096 annotatedSource NCIT_C112178 @default.
- B880afb42249b4e478be9f7b5ef098096 annotatedTarget "A radiotracer composed of a cyclic Arg-Gly-Asp (RGD) peptide that is conjugated with galactose and radiolabeled with fluorine 18, for potential noninvasive positron emission tomography (PET) imaging of alphaVbeta3 integrin expression. Upon administration, the RGD moiety of the fluorine 18 galacto-RGD peptide selectively binds to alphaVbeta3 integrin. During PET imaging, alphaVbeta3-expressing tumor cells can be visualized and the degree of tumor angiogenesis can be determined. Use of a hydrophilic glycopeptide-based agent may increase retention in the blood and reduce clearance by the liver. This leads to both increased uptake of fluorine 18 galacto-RGD peptide by tumor cells and enhanced PET imaging efficiency, when compared to other agents that are constructed using lipophilic conjugates. AlphaVbeta3 integrin, a cell adhesion and signaling receptor, is upregulated in tumor vessel endothelial cells and has been associated with proliferation of tumor cells, tumor angiogenesis and metastasis." @default.