PURPOSE: Radioiodine-negative thyroid cancer presents diagnostic and therapeutic difficulties, warranting the implementation of new imaging and treatment strategies. The purpose of this study was twofold. First, we investigated in vitro the binding characteristics of 111In-DOTA-lanreotide (111In-DOTA-LAN) and 111In-DOTA-D: Phe1-Tyr3-octreotide (111In-DOTA-TOC) to cells derived from differentiated thyroid cancer (DTC). Second, we evaluated the value of somatostatin receptor (SSTR) scintigraphy with these radioligands, as compared with 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET), for the detection of tumour lesions in DTC patients. METHODS: Binding of 111In-DOTA-LAN and 111In-DOTA-TOC to cells isolated from surgically removed thyroid tissue was evaluated in vitro by performing saturation and displacement studies. Eighteen DTC patients with elevated thyroglobulin (12 radioiodine-negative, six radioiodine-positive) were investigated with 111In-DOTA-LAN, 111In-DOTA-TOC and 18F-FDG PET scans. RESULTS: Large numbers of SSTR binding sites for 111In-DOTA-LAN and 111In-DOTA-TOC were found on the cells investigated. Both SSTR radioligands exhibited a high binding affinity for these SSTR binding sites. 111In-DOTA-LAN and 111In-DOTA-TOC scintigraphy detected 37 and 33 lesions, respectively, in 17 (94%) patients each, whereas 18F-FDG PET revealed 30 lesions in 15 (83%) patients. Uptake of both SSTR radioligands was found in several radioiodine-negative sites. No striking differences in lesion imaging by 111In-DOTA-LAN and 111In-DOTA-TOC were found. In both radioiodine-negative and radioiodine-positive patients, more lesions were SSTR-positive/18F-FDG-negative than were 18F-FDG-positive/SSTR-negative. CONCLUSION: Adding a SSTR scan with these radioligands to the diagnostic work-up increases the diagnostic capacity in DTC, and should be considered particularly in radioiodine-negative patients with elevated thyroglobulin levels.
PURPOSE:Radioiodine-negative thyroid cancer presents diagnostic and therapeutic difficulties, warranting the implementation of new imaging and treatment strategies. The purpose of this study was twofold. First, we investigated in vitro the binding characteristics of 111In-DOTA-lanreotide (111In-DOTA-LAN) and 111In-DOTA-D: Phe1-Tyr3-octreotide (111In-DOTA-TOC) to cells derived from differentiated thyroid cancer (DTC). Second, we evaluated the value of somatostatin receptor (SSTR) scintigraphy with these radioligands, as compared with 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET), for the detection of tumour lesions in DTCpatients. METHODS: Binding of 111In-DOTA-LAN and 111In-DOTA-TOC to cells isolated from surgically removed thyroid tissue was evaluated in vitro by performing saturation and displacement studies. Eighteen DTCpatients with elevated thyroglobulin (12 radioiodine-negative, six radioiodine-positive) were investigated with 111In-DOTA-LAN, 111In-DOTA-TOC and 18F-FDG PET scans. RESULTS: Large numbers of SSTR binding sites for 111In-DOTA-LAN and 111In-DOTA-TOC were found on the cells investigated. Both SSTR radioligands exhibited a high binding affinity for these SSTR binding sites. 111In-DOTA-LAN and 111In-DOTA-TOC scintigraphy detected 37 and 33 lesions, respectively, in 17 (94%) patients each, whereas 18F-FDG PET revealed 30 lesions in 15 (83%) patients. Uptake of both SSTR radioligands was found in several radioiodine-negative sites. No striking differences in lesion imaging by 111In-DOTA-LAN and 111In-DOTA-TOC were found. In both radioiodine-negative and radioiodine-positive patients, more lesions were SSTR-positive/18F-FDG-negative than were 18F-FDG-positive/SSTR-negative. CONCLUSION: Adding a SSTR scan with these radioligands to the diagnostic work-up increases the diagnostic capacity in DTC, and should be considered particularly in radioiodine-negative patients with elevated thyroglobulin levels.
Authors: P M Smith-Jones; C Bischof; M Leimer; D Gludovacz; P Angelberger; T Pangerl; M Peck-Radosavljevic; G Hamilton; K Kaserer; A Kofler; H Schlangbauer-Wadl; T Traub; I Virgolini Journal: Endocrinology Date: 1999-11 Impact factor: 4.736
Authors: M Cremonesi; M Ferrari; S Zoboli; M Chinol; M G Stabin; F Orsi; H R Maecke; E Jermann; C Robertson; M Fiorenza; G Tosi; G Paganelli Journal: Eur J Nucl Med Date: 1999-08
Authors: E P Krenning; D J Kwekkeboom; W H Bakker; W A Breeman; P P Kooij; H Y Oei; M van Hagen; P T Postema; M de Jong; J C Reubi Journal: Eur J Nucl Med Date: 1993-08
Authors: I Virgolini; Q Yang; S Li; P Angelberger; N Neuhold; B Niederle; W Scheithauer; P Valent Journal: Cancer Res Date: 1994-02-01 Impact factor: 12.701
Authors: Tatjana Traub-Weidinger; Daniel Putzer; Elisabeth von Guggenberg; Georg Dobrozemsky; Bernhard Nilica; Dorota Kendler; Reto Bale; Irene Johanna Virgolini Journal: Eur J Nucl Med Mol Imaging Date: 2015-07-15 Impact factor: 9.236
Authors: A Kroiss; D Putzer; C Decristoforo; C Uprimny; B Warwitz; B Nilica; M Gabriel; D Kendler; D Waitz; G Widmann; I J Virgolini Journal: Eur J Nucl Med Mol Imaging Date: 2013-01-05 Impact factor: 9.236
Authors: Daniel Putzer; Alexander Kroiss; Dietmar Waitz; Michael Gabriel; Tatjana Traub-Weidinger; Christian Uprimny; Elisabeth von Guggenberg; Clemens Decristoforo; Boris Warwitz; Gerlig Widmann; Irene Johanna Virgolini Journal: Eur J Nucl Med Mol Imaging Date: 2012-11-14 Impact factor: 9.236