5-carboxytetramethylrhodamine-succinimidyl-ester and Ischemia

5-carboxytetramethylrhodamine-succinimidyl-ester has been researched along with Ischemia* in 1 studies

Other Studies

1 other study(ies) available for 5-carboxytetramethylrhodamine-succinimidyl-ester and Ischemia

ArticleYear
A novel Tc-99m and fluorescence labeled peptide as a multimodal imaging agent for targeting angiogenesis in a murine hindlimb ischemia model.
    Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 2017, Volume: 121

    The serine-aspartic acid-valine (SDV) peptide binds specifically to integrin αvβ3. We developed a Tc-99m and TAMRA labeled peptide, Tc-99m SDV-ECG-K-TAMRA for multimodal imaging of angiogenesis. Tc-99m SDV-ECG-K-TAMRA was prepared in high yield (>96%) and showed low cytotoxicity. Tc-99m tetrofosmin images 1 week after operation, revealed significantly decreased perfusion of the ischemic hindlimb, and the perfusion recovered gradually for 4 weeks. In contrast, Tc-99m SDV-ECG-K-TAMRA uptake was maximal 1 week after the operation (ischemic-to-non-ischemic uptake ratio =5.03±1.01) and decreased gradually. The ischemic-to-non-ischemic ratio of Tc-99m SDV-ECG-K-TAMRA and Tc-99m tetrofosmin was strongly negatively correlated (r =-0.94). A postmortem analysis revealed increased angiogenesis markers and uptake of Tc-99m SDV-ECG-K-TAMRA by ischemic tissue. Our in vivo and in vitro studies revealed substantial uptake of Tc-99m SDV-ECG-K-TAMRA by ischemic tissue. Tc-99m SDV-ECG-K-TAMRA could be a good candidate dual-modality imaging agent to assess angiogenesis.

    Topics: Animals; Disease Models, Animal; Fluorescent Dyes; Hindlimb; Ischemia; Mice; Microscopy, Confocal; Multimodal Imaging; Neovascularization, Physiologic; Oligopeptides; Organophosphorus Compounds; Organotechnetium Compounds; Radionuclide Imaging; Radiopharmaceuticals; Rhodamines; Technetium; Tissue Distribution

2017