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Localisation of [131I]MIBG in nude mice bearing SK-N-SH human neuroblastoma xenografts: effect of specific activity.

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Date
1996-05
Authors
Vaidyanathan, G
Friedman, HS
Keir, ST
Zalutsky, MR
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Abstract
The biodistribution of no-carrier-added (n.c.a.) meta-[131I]iodobenzylguanidine ([131I]MIBG) and that prepared by the standard isotopic exchange method were compared in athymic mice bearing SK-N-SH human neuroblastoma xenografts. No advantage in tumour uptake was observed for the n.c.a. preparation. BALB/c nu/nu mice exhibited lower uptake in highly innervated normal tissues (heart and adrenals) than normal BALB/c mice. In another experiment, the distribution of n.c.a. [131I]MIBG in the absence or presence (3-9 micrograms) of MIBG carrier was determined. At both 4 h and 24 h, the heart uptake was reduced by a factor of 1.5 even at a dose of 3 micrograms MIBG. Tumour uptake was not significantly altered by various amounts of unlabelled MIBG at either time point.
Type
Journal article
Subject
3-Iodobenzylguanidine
Animals
Antineoplastic Agents
Humans
Iodobenzenes
Male
Mice
Mice, Inbred BALB C
Mice, Nude
Neoplasm Transplantation
Neoplasms, Experimental
Neuroblastoma
Tissue Distribution
Transplantation, Heterologous
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https://hdl.handle.net/10161/11050
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Scholars@Duke

Friedman

Henry Seth Friedman

James B. Powell, Jr. Distinguished Professor of Pediatric Oncology, in the School of Medicine
Overview: Our laboratory is pursuing a comprehensive analysis of the biology and therapy of adult and childhood central nervous system malignancies, particularly high-grade medulloblastoma, glioma, and ependymoma. Laboratory Studies: Active programs, using human adult and pediatric CNS tumor continuous cell lines, transplantable xenografts growing subcutaneously and intracranially in athymic nude mice and rats, and as well as in the subarachnoid space of the ath
Keir

Stephen Thomas Keir

Professor in Neurosurgery
Brain Tumors, Preclinical Testing, Translational Research
Vaidyanathan

Ganesan Vaidyanathan

Professor Emeritus in Radiology
Dr. Vaidyanathan is a professor in the Department of Radiology.  He is a member of the Nuclear Medicine track of the Medical Physics Graduate Program.  His research involves development of radiopharmaceuticals especially for oncologic applications.  Some of the projects he is involved in are given below. I.          New methods of radiohalogenating antibodies and its variants  a) Development of ne
Zalutsky

Michael Rod Zalutsky

Jonathan Spicehandler, M.D. Distinguished Professor of Neuro Oncology, in the School of Medicine
The overall objective of our laboratory is the development of novel radioactive compounds for improving the diagnosis and treatment of cancer. This work primarily involves radiohalo-genation of biomolecules via site-specific approaches, generally via demetallation reactions. Radionuclides utilized for imaging include I-123, I-124 and F-18, the later two being of particular interest because they can be used for the quantification of biochemical and physiological processes in the living huma
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