نتایج جستجو برای: radiolabeled peptides

تعداد نتایج: 85561  

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2005
Bernd J Pichler Manfred Kneilling Roland Haubner Heidi Braumüller Markus Schwaiger Martin Röcken Wolfgang A Weber

UNLABELLED Radiolabeled cyclic peptides containing the amino acid sequence arginine-glycine-aspartate (RGD peptides) have successfully been used to image the expression of the alpha(v)beta(3) integrin in malignant tumors. However, the alpha(v)beta(3) integrin also plays an important role in angiogenesis induced by chronic inflammatory processes. Therefore, the aim of this study was to evaluate ...

2013
Archana Mukherjee R. A. Pillai

Radiolabeled cyclic RGD peptides targeting integrin αvβ3 are reported as promising agents for the early diagnosis of metastatic tumors. With an aim to improve tumor uptake and retention of the peptide, cyclic RGD peptide dimer E[c (RGDfK)] 2 (E = Glutamic acid, f = phenyl alanine, K = lysine) coupled to the bifunctional chelator DOTA was custom synthesized and radiolabelled with Ga. Radiolabell...

2017
Aleksandra Marciniak Justyna Brasuń

Peptide receptor radionuclide therapy (PRRT) is a promising way to treat patients with inoperable tumors or metastatic neuroendocrine tumors. This therapeutic strategy is using radiolabeled peptides, which are capable of selective biding to receptors overexpressed in the cancer cells. One of the group of receptor-avid peptide used in the PRRT are the analogues of somatostatin (SST) connected to...

2016
Dustin Wayne Demoin Linden C. Wyatt Kimberly J. Edwards Dalya Abdel-Atti Mirkka Sarparanta Jacob Pourat Valerie A. Longo Sean D. Carlin Donald M. Engelman Oleg A. Andreev Yana K. Reshetnyak Nerissa Viola-Villegas Jason S. Lewis

pH (low) insertion peptides (pHLIP peptides) target acidic extracellular environments in vivo due to pH-dependent cellular membrane insertion. Two variants (Var3 and Var7) and wild-type (WT) pHLIP peptides have shown promise for in vivo imaging of breast cancer. Two positron emitting radionuclides ((64)Cu and (18)F) were used to label the NOTA- and NO2A-derivatized Var3, Var7, and WT peptides f...

Mohammad hossein Babaei Mohammad Shafiei Payam Behradkia Reza Najafi

Imaging of infection and inflammation is an important issue in nuclear medicine as it may have relevant implication for the management of patients with infections or inflammatory diseases. In this regard the synthesis of human polyclonal immunoglobuline G (IgG) radiolabeled with technetium-99m (99mTc) by a novel method, via a nicotinamide hydrazine derivative, was performed. The biologica...

Journal: :Molecules 2015
Sander M J van Duijnhoven Marc S Robillard Klaas Nicolay Holger Grüll

Membrane type-1 matrix metalloproteinase (MT1-MMP or MMP-14) plays an important role in adverse cardiac remodelling. Here, we aimed to develop radiolabeled activatable cell penetrating peptides (ACPP) sensitive to MT1-MMP for the detection of elevated MT1-MMP levels in adverse cardiac remodelling. Three ACPP analogs were synthesized and the most potent ACPP analog was selected using MT1-MMP sen...

Journal: :Infection and immunity 1985
K Richardson C D Parker

Whole cells and isolated outer membrane from Vibrio cholerae (Classical, Inaba) were radiolabeled with Iodogen or Iodo-beads as catalyst. Radiolabeling of whole cells was shown to be surface specific by sodium dodecyl sulfate-urea polyacrylamide gel electrophoresis of whole cells and cell fractions. Surface-labeled whole cells regularly showed 16 distinguishable protein species, of which nine w...

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