Influence of glioma's multidrug resistance phenotype on (99m)Tc-tetrofosmin uptake
Φόρτωση...
Ημερομηνία
Συγγραφείς
Alexiou, G. A.
Goussia, A.
Kyritsis, A. P.
Tsiouris, S.
Ntoulia, A.
Malamou-Mitsi, V.
Voulgaris, S.
Fotopoulos, A. D.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer-reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Mol Imaging Biol
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
PURPOSE: Multidrug resistance (MDR) remains a major obstacle to successful chemotherapeutic treatment of cancer. Several chemotherapeutic and radiopharmaceutical agents are substrates of the pumps encoded by the MDR genes, and therefore, their accumulation is prevented. We evaluated in vivo whether [(99m)Tc]tetrofosmin ((99m)Tc-TF) uptake is influenced by the MDR profile of gliomas. PROCEDURES: Eighteen patients with histologically confirmed glioma were included in the study. Brain single-photon emission computed tomography by (99m)Tc-TF was performed within a week prior to surgical excision, and the expression of MRP5 was assessed by immunohistochemistry. Radiotracer accumulation was assessed by a semiquantitative method, calculating the lesion-to-normal uptake ratio. RESULTS: Using Spearman's rho analysis, we found no correlation between tracer uptake expressed as lesion-to-normal and MRP5 expression. There was a significant correlation between glioma aggressiveness as assessed by Ki-67/MIB-1 and MRP5 expression. CONCLUSION: The present data suggest that (99m)Tc-TF uptake is not influenced by glioma's MDR phenotype. Thus, (99m)Tc-TF constitutes a suitable radiotracer for imaging gliomas.
Περιγραφή
Λέξεις-κλειδιά
Adult, *Drug Resistance, Multiple, *Drug Resistance, Neoplasm, Female, Glioma/*metabolism/*pathology, Humans, Male, Middle Aged, Organophosphorus Compounds/*pharmacokinetics, Organotechnetium Compounds/*pharmacokinetics, Phenotype, Tomography, Emission-Computed, Single-Photon
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
http://www.ncbi.nlm.nih.gov/pubmed/20552283
http://www.springerlink.com/content/fw0688k882855367/fulltext.pdf
http://www.springerlink.com/content/fw0688k882855367/fulltext.pdf
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικής