نتایج جستجو برای: hynic
تعداد نتایج: 217 فیلتر نتایج به سال:
introduction: trastuzumab is a monoclonal antibody that is used in treating breast cancer. we labeled this monoclonal antibody with technetium-99m and performed in vitro and in vivo quality control tests as a first step in the production of a new radiopharmaceutical. methods: trastuzumab was labeled with technetium-99m using succinimidyl hydrazinonicotinamide (hynic) as chelator. radiochemical ...
background: ubi 29-41 (a derivative of antimicrobial peptide ubiquicidin) labelled with 99mtc is reported to discriminate between bacterial infections and sterile inflammatory processes. in this study, three lyophilized kit were performed, one of them based on the direct labelling with only sncl2 as reducing agent , and other two based on 6- hydrazinopyridine-3-carboxylic acid (hynic) and trici...
UNLABELLED Integrin αvβ6, a member of the integrin family, is specifically expressed in many malignancies but not in normal organs. Overexpression of integrin αvβ6 is usually correlated with malignant potential and poor prognosis. In this study, we describe the synthesis and evaluation of a (99m)Tc-labeled integrin αvβ6-targeting peptide as a SPECT radiotracer for the in vivo imaging of integri...
Background: UBI 29-41 (a derivative of antimicrobial peptide ubiquicidin) labelled with 99mTc is reported to discriminate between bacterial infections and sterile inflammatory processes. In this study, three lyophilized kit were performed, one of them based on the direct labelling with only SnCl2 as reducing agent , and other two based on 6- hydrazinopyridine-3-carboxylic acid (HYNIC) and trici...
Metastatic melanoma remains an incurable disease, and there is a great need for novel therapeutic modalities. We have recently identified melanin as a target for radionuclide therapy of melanoma and demonstrated the feasibility of this approach using a 188-rhenium ( (188)Re)-radiolabeled melanin-binding decapeptide to fungal melanin known as 4B4. Although the results indicated that radiolabeled...
Molecular probes capable of detecting colorectal cancer (CRC) are needed for early CRC diagnosis. The objective of this study was to characterize c[CTPSPFSHC]OH (TCP-1), a small peptide derived from phage display selection, for targeting human CRC xenografts using technetium-99m ((99m)Tc)-labeled TCP-1 and fluorescent cyanine-7 (Cy7)-labeled form of the peptide (Cy7-TCP-1). (99m)Tc-TCP-1 was ge...
BACKGROUND Molecular apoptosis imaging is frequently discussed to be useful for monitoring cancer therapy. We demonstrate that the sole assessment of therapy effects by apoptosis imaging can be misleading, depending on the therapy effect on the tumor vasculature. METHODS Apoptosis was investigated by determining the uptake of Annexin Vivo by optical imaging (study part I) and of 99 mTc-6-hydr...
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