PET imaging of inflammation and adenocarcinoma xenografts using vascular adhesion protein 1 targeting peptide 68Ga-DOTAVAP-P1: comparison with 18F-FDG

Purpose The aim of this study was to evaluate inflammation and tumour imaging with a vascular adhesion protein 1 (VAP-1) targeting peptide 68 Ga-DOTAVAP-P1 in comparison with 18 F-FDG. Methods Rats with both subcutaneous human pancreatic adenocarcinoma xenografts and turpentine oil-induced acute ste...

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Veröffentlicht in:European journal of nuclear medicine and molecular imaging 2010-10, Vol.37 (10), p.1918-1925
Hauptverfasser: Autio, Anu, Ujula, Tiina, Luoto, Pauliina, Salomäki, Satu, Jalkanen, Sirpa, Roivainen, Anne
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container_issue 10
container_start_page 1918
container_title European journal of nuclear medicine and molecular imaging
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creator Autio, Anu
Ujula, Tiina
Luoto, Pauliina
Salomäki, Satu
Jalkanen, Sirpa
Roivainen, Anne
description Purpose The aim of this study was to evaluate inflammation and tumour imaging with a vascular adhesion protein 1 (VAP-1) targeting peptide 68 Ga-DOTAVAP-P1 in comparison with 18 F-FDG. Methods Rats with both subcutaneous human pancreatic adenocarcinoma xenografts and turpentine oil-induced acute sterile inflammation were evaluated by dynamic positron emission tomography (PET) and by digital autoradiography of tissue cryosections. Subsequently, the autoradiographs were combined with histological and immunohistological analysis of the sections. Results 68 Ga-DOTAVAP-P1 delineated acute, sterile inflammation comparable with 18 F-FDG. However, the tumour uptake of 68 Ga-DOTAVAP-P1 was low in contrast to prominent 18 F-FDG uptake. The standardised uptake values of inflammation and tumours by PET were 1.1 ± 0.4 (mean ± SEM) and 0.4 ± 0.1 for 68 Ga-DOTAVAP-P1 and 2.0 ± 0.5 and 1.6 ± 0.8 for 18 F-FDG, respectively. In addition, PET studies showed inflammation to muscle and tumour to muscle ratios of 5.1 ± 3.1 and 1.7 ± 0.3 for 68 Ga-DOTAVAP-P1 and 6.2 ± 0.7 and 4.6 ± 2.2 for 18 F-FDG, respectively. Immunohistochemistry revealed increased expression of luminal VAP-1 on the endothelium at the site of inflammation and low expression in the tumour Conclusion The 68 Ga-DOTAVAP-P1 PET was able to visualise inflammation better than tumour, which was in accordance with the luminal expression of VAP-1 on vasculature in these experimental models.
doi_str_mv 10.1007/s00259-010-1497-y
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Methods Rats with both subcutaneous human pancreatic adenocarcinoma xenografts and turpentine oil-induced acute sterile inflammation were evaluated by dynamic positron emission tomography (PET) and by digital autoradiography of tissue cryosections. Subsequently, the autoradiographs were combined with histological and immunohistological analysis of the sections. Results 68 Ga-DOTAVAP-P1 delineated acute, sterile inflammation comparable with 18 F-FDG. However, the tumour uptake of 68 Ga-DOTAVAP-P1 was low in contrast to prominent 18 F-FDG uptake. The standardised uptake values of inflammation and tumours by PET were 1.1 ± 0.4 (mean ± SEM) and 0.4 ± 0.1 for 68 Ga-DOTAVAP-P1 and 2.0 ± 0.5 and 1.6 ± 0.8 for 18 F-FDG, respectively. In addition, PET studies showed inflammation to muscle and tumour to muscle ratios of 5.1 ± 3.1 and 1.7 ± 0.3 for 68 Ga-DOTAVAP-P1 and 6.2 ± 0.7 and 4.6 ± 2.2 for 18 F-FDG, respectively. Immunohistochemistry revealed increased expression of luminal VAP-1 on the endothelium at the site of inflammation and low expression in the tumour Conclusion The 68 Ga-DOTAVAP-P1 PET was able to visualise inflammation better than tumour, which was in accordance with the luminal expression of VAP-1 on vasculature in these experimental models.</description><identifier>ISSN: 1619-7070</identifier><identifier>EISSN: 1619-7089</identifier><identifier>DOI: 10.1007/s00259-010-1497-y</identifier><identifier>PMID: 20523988</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Adenocarcinoma - diagnostic imaging ; Adenocarcinoma - genetics ; Adenocarcinoma - metabolism ; Adenocarcinoma - pathology ; Amine Oxidase (Copper-Containing) - metabolism ; Animals ; Cardiology ; Cell Adhesion Molecules - metabolism ; Cell Line, Tumor ; Cell Transformation, Neoplastic ; Fluorodeoxyglucose F18 ; Gallium Radioisotopes ; Gene Expression Regulation, Neoplastic ; Heterocyclic Compounds, 1-Ring - chemistry ; Humans ; Imaging ; Inflammation - diagnostic imaging ; Inflammation - metabolism ; Male ; Medicine ; Medicine &amp; Public Health ; Nuclear Medicine ; Oncology ; Original Article ; Orthopedics ; Pancreatic cancer ; Pancreatic Neoplasms - diagnostic imaging ; Pancreatic Neoplasms - genetics ; Pancreatic Neoplasms - metabolism ; Pancreatic Neoplasms - pathology ; Peptides - chemistry ; Peptides - metabolism ; Positron-Emission Tomography ; Proteins ; Radiology ; Rats ; Rodents ; Skin Diseases - diagnostic imaging ; Skin Diseases - metabolism ; Tomography ; Tumors</subject><ispartof>European journal of nuclear medicine and molecular imaging, 2010-10, Vol.37 (10), p.1918-1925</ispartof><rights>Springer-Verlag 2010</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c300t-721c4e1fd05adafa3d58b6092f08b79922bc21a54abd8ed21db5656a6de6cbae3</citedby><cites>FETCH-LOGICAL-c300t-721c4e1fd05adafa3d58b6092f08b79922bc21a54abd8ed21db5656a6de6cbae3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00259-010-1497-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00259-010-1497-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20523988$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Autio, Anu</creatorcontrib><creatorcontrib>Ujula, Tiina</creatorcontrib><creatorcontrib>Luoto, Pauliina</creatorcontrib><creatorcontrib>Salomäki, Satu</creatorcontrib><creatorcontrib>Jalkanen, Sirpa</creatorcontrib><creatorcontrib>Roivainen, Anne</creatorcontrib><title>PET imaging of inflammation and adenocarcinoma xenografts using vascular adhesion protein 1 targeting peptide 68Ga-DOTAVAP-P1: comparison with 18F-FDG</title><title>European journal of nuclear medicine and molecular imaging</title><addtitle>Eur J Nucl Med Mol Imaging</addtitle><addtitle>Eur J Nucl Med Mol Imaging</addtitle><description>Purpose The aim of this study was to evaluate inflammation and tumour imaging with a vascular adhesion protein 1 (VAP-1) targeting peptide 68 Ga-DOTAVAP-P1 in comparison with 18 F-FDG. Methods Rats with both subcutaneous human pancreatic adenocarcinoma xenografts and turpentine oil-induced acute sterile inflammation were evaluated by dynamic positron emission tomography (PET) and by digital autoradiography of tissue cryosections. Subsequently, the autoradiographs were combined with histological and immunohistological analysis of the sections. Results 68 Ga-DOTAVAP-P1 delineated acute, sterile inflammation comparable with 18 F-FDG. However, the tumour uptake of 68 Ga-DOTAVAP-P1 was low in contrast to prominent 18 F-FDG uptake. The standardised uptake values of inflammation and tumours by PET were 1.1 ± 0.4 (mean ± SEM) and 0.4 ± 0.1 for 68 Ga-DOTAVAP-P1 and 2.0 ± 0.5 and 1.6 ± 0.8 for 18 F-FDG, respectively. In addition, PET studies showed inflammation to muscle and tumour to muscle ratios of 5.1 ± 3.1 and 1.7 ± 0.3 for 68 Ga-DOTAVAP-P1 and 6.2 ± 0.7 and 4.6 ± 2.2 for 18 F-FDG, respectively. Immunohistochemistry revealed increased expression of luminal VAP-1 on the endothelium at the site of inflammation and low expression in the tumour Conclusion The 68 Ga-DOTAVAP-P1 PET was able to visualise inflammation better than tumour, which was in accordance with the luminal expression of VAP-1 on vasculature in these experimental models.</description><subject>Adenocarcinoma - diagnostic imaging</subject><subject>Adenocarcinoma - genetics</subject><subject>Adenocarcinoma - metabolism</subject><subject>Adenocarcinoma - pathology</subject><subject>Amine Oxidase (Copper-Containing) - metabolism</subject><subject>Animals</subject><subject>Cardiology</subject><subject>Cell Adhesion Molecules - metabolism</subject><subject>Cell Line, Tumor</subject><subject>Cell Transformation, Neoplastic</subject><subject>Fluorodeoxyglucose F18</subject><subject>Gallium Radioisotopes</subject><subject>Gene Expression Regulation, Neoplastic</subject><subject>Heterocyclic Compounds, 1-Ring - chemistry</subject><subject>Humans</subject><subject>Imaging</subject><subject>Inflammation - diagnostic imaging</subject><subject>Inflammation - metabolism</subject><subject>Male</subject><subject>Medicine</subject><subject>Medicine &amp; 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Methods Rats with both subcutaneous human pancreatic adenocarcinoma xenografts and turpentine oil-induced acute sterile inflammation were evaluated by dynamic positron emission tomography (PET) and by digital autoradiography of tissue cryosections. Subsequently, the autoradiographs were combined with histological and immunohistological analysis of the sections. Results 68 Ga-DOTAVAP-P1 delineated acute, sterile inflammation comparable with 18 F-FDG. However, the tumour uptake of 68 Ga-DOTAVAP-P1 was low in contrast to prominent 18 F-FDG uptake. The standardised uptake values of inflammation and tumours by PET were 1.1 ± 0.4 (mean ± SEM) and 0.4 ± 0.1 for 68 Ga-DOTAVAP-P1 and 2.0 ± 0.5 and 1.6 ± 0.8 for 18 F-FDG, respectively. In addition, PET studies showed inflammation to muscle and tumour to muscle ratios of 5.1 ± 3.1 and 1.7 ± 0.3 for 68 Ga-DOTAVAP-P1 and 6.2 ± 0.7 and 4.6 ± 2.2 for 18 F-FDG, respectively. Immunohistochemistry revealed increased expression of luminal VAP-1 on the endothelium at the site of inflammation and low expression in the tumour Conclusion The 68 Ga-DOTAVAP-P1 PET was able to visualise inflammation better than tumour, which was in accordance with the luminal expression of VAP-1 on vasculature in these experimental models.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>20523988</pmid><doi>10.1007/s00259-010-1497-y</doi><tpages>8</tpages></addata></record>
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subjects Adenocarcinoma - diagnostic imaging
Adenocarcinoma - genetics
Adenocarcinoma - metabolism
Adenocarcinoma - pathology
Amine Oxidase (Copper-Containing) - metabolism
Animals
Cardiology
Cell Adhesion Molecules - metabolism
Cell Line, Tumor
Cell Transformation, Neoplastic
Fluorodeoxyglucose F18
Gallium Radioisotopes
Gene Expression Regulation, Neoplastic
Heterocyclic Compounds, 1-Ring - chemistry
Humans
Imaging
Inflammation - diagnostic imaging
Inflammation - metabolism
Male
Medicine
Medicine & Public Health
Nuclear Medicine
Oncology
Original Article
Orthopedics
Pancreatic cancer
Pancreatic Neoplasms - diagnostic imaging
Pancreatic Neoplasms - genetics
Pancreatic Neoplasms - metabolism
Pancreatic Neoplasms - pathology
Peptides - chemistry
Peptides - metabolism
Positron-Emission Tomography
Proteins
Radiology
Rats
Rodents
Skin Diseases - diagnostic imaging
Skin Diseases - metabolism
Tomography
Tumors
title PET imaging of inflammation and adenocarcinoma xenografts using vascular adhesion protein 1 targeting peptide 68Ga-DOTAVAP-P1: comparison with 18F-FDG
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