Journal: Molecular Medicine Reports
Article Title: Hypoxia is important in F-18 FDG accumulation in thecoma-fibroma tumors on F-18 FDG PET/CT scans
doi: 10.3892/mmr.2016.5016
Figure Lengend Snippet: SUVmax (A) and immunohistochemical analysis findings of (B) GLUT1, (C) Ki-67, (D) LAT1, (E) HIF-1α and (F) VEGF expression in the imaged lesions. In the malignant ovarian tumors, HIF-1α, VEGF, LAT1, Ki-67, and GLUT1 expression tended to be relatively higher than that in the thecoma-fibroma group. In the F-18 FDG-positive thecoma-fibroma group, Ki-67 expression was low and LAT1 expression was absent, thereby excluding the possibility of malignancy in these lesions. However, considerable GLUT1, HIF-1α, and VEGF expression were observed. In the two cases of F-18 FDG-negative fibroma, HIF-1α, VEGF, LAT1, Ki-67 and GLUT1 expression levels were low or inconclusive. SUV, standard uptake value; GLUT1, glucose transporter 1; LAT1, L-type amino acid transporter 1; HIF-1α, hypoxia-inducible factor 1α; FDG, fluorodeoxyglucose.
Article Snippet: The following antibodies were used: Polyclonal rabbit anti-human glucose transporter 1 (GLUT1; 1:200 dilution; cat. no. ab15309; Abcam, Cambridge, UK), monoclonal mouse anti-human L-type amino acid transporter 1 (LAT-1; 1:50; clone LAT-1; cat. no. M7279; Dako, Glostrup, Denmark), monoclonal mouse anti-human hypoxia-inducible factor 1α (HIF-1α; 1:100; clone HIFa67; cat. no. MAB5382; Millipore, Billerica, MA, USA), polyclonal rabbit anti-human vascular endothelial growth factor (VEGF; 1:100; cat. no. A-20; Santa Cruz Biotechnology, Inc., Santa Cruz, CA, USA), and monoclonal mouse anti-human Ki-67 (1:100; clone MIB-1; cat. no. M7248; Dako).
Techniques: Immunohistochemical staining, Expressing