BACKGROUND The aim of the study was to explore Fc mutations of a humanised anti-Lewis-Y antibody (IgG1) hu3S193 as a strategy to improve therapeutic ratios for therapeutic payload delivery. METHODS Four hu3S193 variants (I253A, H310A, H435A and I253A/H310A) were generated via site-directed mutagenesis and radiolabelled with diagnostic isotopes iodine-125 or indium-111. Biodistribution studies...

Pt3Fe(111), Pt3Fe(775) = 7(111)–(111), and Pt3Fe(544) 9(111)–(100) electrodes show the highest activity in low-index planes, n(111)–(111), n(111)–(100) series of Pt3Fe, respectively. The surfaces these were modified with hydrophobic species such as THA+, melamine, ionic liquid ([MTBD][beti]), effects on oxygen reduction reaction (ORR) studied. All improved ORR all examined. Pt3Fe(111) 0.1 M HCl...

To address trafficking of transplanted marrow cells immediately after intravenous infusion, we examined the early fate of infused non-adherent, low-density donor bone marrow cells in a syngeneic mouse model. The presence of infused donor cells, marked with indium-111 oxine (111In), with the fluorescent dye PKH26, or by a detectable transgene marker, was evaluated at 3-48 h in a variety of tissu...

Untreated patients with Hodgkin's disease (HD) have a blood T-lymphocytopenia mainly caused by a reduction of the CD4+ subset. Indirect support for a sequestration of T cells in the spleen and tumor-involved lymphoid tissue has accumulated. To test the hypothesis that the blood CD4 T-lymphocytopenia in patients with HD is caused by an altered lymphocyte traffic, 12 untreated HD patients and fiv...

OBJECTIVE To evaluate therapy with high doses of (111)Indium pentetreotide in a patient with bone metastases from a carcinoid of the pancreas. CASE REPORT A 55-Year-old male presented in November 1990 with stomach ache with dorsal irradiation. Ultrasonography and computed tomography (CT-) scans of the abdomen revealed a tumour of the tail of the pancreas and liver metastases. Histological exa...

The studies reported herein demonstrate the efficacy of alpha-particle-targeted radiation therapy of peritoneal disease with Herceptin as the targeting vehicle. Using the CHX-A-DTPA linker, Herceptin was radiolabeled with indium-111 and bismuth-213 with high efficiency without compromising immunoreactivity. A pilot radioimmunotherapy study treating mice bearing 5-day LS-174T (i.p.) xenografts, ...

The myocardial uptake of In-111 antimyosin Fab and Tc-99m pyrophosphate was studied in dogs undergoing coronary artery occlusion for 90 minutes followed by reperfusion. The regional myocardial blood flow was determined by injecting Sc-46 labeled microsphere and was related to the relative concentrations of In-111 antimyosin and Tc-99m pyrophosphate. There was an inverse linear correlation betwe...