FAPI-X5 is a selective inhibitor of fibroblast activation protein (FAP) that binds to the catalytic domain, effectively disrupting its enzymatic activity through hydrogen bonding and π-π interactions. This compound exhibits significant cytostatic effects on glioblastoma tumors, resulting in reduced tumor growth without inducing regression. When radiolabeled with 68Ga, FAPI-X5 serves as a highly effective PET tracer, facilitating rapid tumor localization and high-contrast imaging in glioblastoma models. Additionally, FAPI-X5 can be labeled with 177Lu or 47Sc, functioning as a targeted radionuclide agent with extended tumor retention, making it valuable for glioblastoma research applications.
FAPI-X5 is a selective inhibitor of fibroblast activation protein (FAP) that binds to the catalytic domain, effectively disrupting its enzymatic activity through hydrogen bonding and π-π interactions. This compound exhibits significant cytostatic effects on glioblastoma tumors, resulting in reduced tumor growth without inducing regression. When radiolabeled with 68Ga, FAPI-X5 serves as a highly effective PET tracer, facilitating rapid tumor localization and high-contrast imaging in glioblastoma models. Additionally, FAPI-X5 can be labeled with 177Lu or 47Sc, functioning as a targeted radionuclide agent with extended tumor retention, making it valuable for glioblastoma research applications.
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