Compounds with reduced ring size for use in diagnosing and treating melanoma, including metastatic melanoma and methods related to same

    公开(公告)号:US10047135B2

    公开(公告)日:2018-08-14

    申请号:US14622217

    申请日:2015-02-13

    申请人: STC.UNM

    发明人: Yubin Miao

    摘要: The present invention is directed to novel non-invasive diagnostic tools/compounds to image cancers, especially, melanoma, including metastatic melanoma in vivo. The present compounds exhibit enhanced uptake in cancerous cells and tissue and decreased renal uptake in kidney, evidencing favorable pharmacokinetics of compounds of the present invention. The compounds according to the present invention represent an advance in the diagnosis and treatment of melanoma, including metastatic melanoma using non-invasive molecular imaging techniques. The novel probes of the present invention are also useful for initiating therapy for melanoma as well as monitor patients' response to chemotherapy treatments and other interventions or therapies used in the treatment of melanoma/metastatic melanoma. Compounds according to the present invention may be used as diagnostic tools for a number of conditions and diseases states as well as therapeutic agents for treating such conditions and disease states.

    Spect radionuclide-labeled trimeric cycle RGD peptide, preparation method thereof and imaging method thereof

    公开(公告)号:US10016521B2

    公开(公告)日:2018-07-10

    申请号:US15002690

    申请日:2016-01-21

    发明人: Bailing Hsu

    摘要: The disclosure is related to a chemical structure, a preparation and an imaging method of a tumor imaging tracer, especially to a SPECT radionuclide-labeled trimeric cyclic RGD peptide: 99mTc-4P-RGD3which functions as a ligand to be combined with integrin αvβ3 receptor in tumor for tumor imaging. The preparation includes linking HYNIC-OSu with 4P-RGD3 to form HYNIC-4P-RGD3 and then chelating HYNIC with 99mTc to create 99mTc-4P-RGD3Animal biodistribution and imaging experiments reveal higher uptake in tumor and lower uptake in normal organs, therefore the disclosure can improve image quality, Through animal metabolic experiments, the original form of 99mTc-4P-RGD3 can be still excreted without the evidence of further metabolites in urine and feces. According to the disclosure, the tumor imaging tracer 99mTc-4P-RGD; combined with the integrin αvβ3 solves the issue of high background uptake in normal organs, such that radio-labeled SPECT imaging tracers are more suitable for animal whole-body tumor evaluation.