Imaging of brain TSPO expression in a mouse model of amyotrophic lateral sclerosis with 18F-DPA-714 and micro-PET/CT. European Journal of Nuclear Medicine and Molecular Imaging S. Gargiulo1,2§, S. Anzilotti3§, A.R.D. Coda1, M. Gramanzini1,2 , A. Greco4,2, M. Panico1, A. Vinciguerra5, A. Zannetti1, C. Vicidomini1, F. Dollé6, G. Pignataro5, M. Quarantelli1, L. Annunziato5,3, A. Brunetti4,2, M. Salvatore3, S. Pappatà 1* 1 Institute of Biostructure and Bioimaging, National Research Council, Via T. De Amicis 95, 80145, Naples, Italy 2 Ceinge Biotecnologie Avanzate s. c. a r. l., Via G. Salvatore 486, 80145, Naples, Italy 3 IRCCS SDN, Via E. Gianturco 113, 80143, Naples, Italy 4 Department of Advanced Biomedical Sciences, University “Federico II”, Via S. Pansini 5, 80131, Naples, Italy 5 Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University “Federico II”, Via S. Pansini 5, 80131, Naples, Italy 6 CEA, Institute for Biomedical Imaging, 4 Place du Général Leclerc, 91401, Orsay, France * Corresponding Author: Sabina Pappatà, [email protected]; Tel.: + 39 0812203414 / +39 3666115326; fax: +39 0812203498 § These authors contributed equally Supplementary Figures and Figure Legends 40 35 weight (g) 30 25 20 SOD1G93A 15 WT SOD1 10 5 0 7 8 10 11 12 13 14 15 16 17 18 19 age (weeks) Supplementary Fig. 1 Body weight (mean±SD) registered from 7 to 19 weeks of age in SOD1G93A and WT SOD1 mice Supplementary Fig. 2 Representative confocal laser scanning microscopy images of doublelabel immunofluorescence for TSPO and microglia in the frontal association cortex in a symptomatic SOD1G93A mouse (125-day-old) with CS of 4 and in a WT SOD1 control (130days-old). TSPO immunolabeling (visualized in red-cy3 immunofluorescence), Iba1 immunolabeling (visualized in green-cy2 immunofluorescence) and merged images (TSPO+Iba1 visualized in orange). The images show the absence of TSPO and Iba1 immunoreactivities both in symptomatic SOD1G93A mouse and WT SOD1 control. Scale bar: 20 µm
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