期刊
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
卷 27, 期 4, 页码 941-943出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2016.12.086
关键词
IGF1R; IR; Insulin; Radiotracer; MicroPET
资金
- National Institute of Health [R01 CA160700]
In vivo evaluation of [F-18]BMS-754807 binding in mice and rats using microPET and biodistribution methods is described herein. The radioligand shows consistent binding characteristics, in vivo, in both species. Early time frames of the microPET images and time activity curves of brain indicate poor penetration of the tracer across the blood brain barrier (BBB) in both species. However, microPET experiments in mice and rats show high binding of the radioligand outside the brain to heart, pancreas and muscle, the organs known for higher expression of IGF1R/1R. Biodistribution analysis 2 h after injection of [F-18]BMS-754807 in rats show negligible [F-18]defluorination as reflected by the low bone uptake and clearance from blood. Overall, the data indicate that [F-18]BMS-754807 can potentially be a radiotracer for the quantification of IGF1R/IR outside the brain using PET. (C) 2017 Elsevier Ltd. All rights reserved.
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