Relationship between thallium-201 kinetics and proliferative activity assessed by monoclonal antibody MIB-1 in brain tumours

Autor: Norihiko Kume, Akiko Hara, Kazuyoshi Suga, Y. Ishikawa, Naofumi Matsunaga, Kazumi Motoyama, Takafumi Nishizaki
Rok vydání: 2001
Předmět:
Zdroj: European journal of nuclear medicine. 28(10)
ISSN: 0340-6997
Popis: To clarify the relationship between thallium-201 chloride kinetics and proliferative activity in brain tumours, a single-photon emission tomographic (SPET) study was performed and the results correlated with monoclonal antibody MIB-1 staining of the tumour tissue. 201Tl SPET was performed 10 min (early scan) and 2 h (delayed scan) after intravenous administration of 201Tl (111 MBq) in 34 intra-axial tumours including 24 malignant tumours, and in 27 extra-axial tumours including one malignant tumour. Tumour 201Tl kinetic parameters [early and delayed uptake ratios (ER and DR, respectively), retention index (RI), and the ratio of tumour delayed activity to early activity (Td/Te)] were compared with tumour tissue MIB-1 labelling indices (MIB-1 LI) representative of tumour cell proliferative activity. In the intra-axial tumours, ER and DR and MIB-1 LI were significantly higher in the malignant tumours than in the benign tumours. ER and DR were significantly correlated with MIB-1 LI (P
Databáze: OpenAIRE