Iodide Kinetics and Dosimetry In Vivo After Transfer of the Human Sodium Iodide Symporter Gene in Rat Thyroid Carcinoma Cells
Uwe Haberkorn, MD1,2,
Petra Beuter1,3,
Wolfgang Kübler, PhD4,
Helmut Eskerski2,
Michael Eisenhut, PhD5,
Ralf Kinscherf, PhD3,
Sabine Zitzmann, PhD2,
Ludwig G. Strauss, MD2,
Antonia Dimitrakopoulou-Strauss, MD2 and
Annette Altmann, PhD2
1 Department of Nuclear Medicine, University of Heidelberg, Heidelberg, Germany
2 Clinical Cooperation Unit Nuclear Medicine, Deutsche Krebsforschungszentrum, Heidelberg, Germany
3 Department of Anatomy and Cell Biology III, University of Heidelberg, Heidelberg, Germany
4 Department of Radiation Protection, Deutsche Krebsforschungszentrum, Heidelberg, Germany
5 Department of Radiochemistry and Radiopharmacology, Deutsche Krebsforschungszentrum, Heidelberg, Germany

View larger version (13K):
[in a new window]
|
FIGURE 1. Time dependence of 125I uptake in wild-type rat thyroid carcinoma cells and in the hNIS-expressing cell line L2hNIShyg3. Values are mean and SD (n = 3).
|
|

View larger version (13K):
[in a new window]
|
FIGURE 2. Effect of DIDS, FCCP, sodium perchlorate (SP), and ouabain (ouab) on 125I uptake in wild-type rat thyroid carcinoma cells and in the hNIS-expressing cell line L2hNIShyg3 after 1 h of incubation. Values are mean and SD (n = 3). con = control.
|
|

View larger version (10K):
[in a new window]
|
FIGURE 3. Iodide efflux from L2hNIShyg3 cells after 1 h of incubation with Na125I with and without 300 µmol of DIDS per liter. Values are mean and SD (n = 3).
|
|

View larger version (76K):
[in a new window]
|
FIGURE 4. Scintigraphic images of tumor-bearing nude mice with subcutaneously transplanted hNIS-expressing (right thigh) or wild-type (left thigh) thyroid carcinoma cells at 2 h (A), 6 h (B), 24 h (C), and 48 h (D) after injection of 131I.
|
|

View larger version (11K):
[in a new window]
|
FIGURE 5. 131I uptake (kBq/g) in hNIS-expressing and wild-type thyroid carcinomas after administration of 1,650 MBq/m2 at different times after radiotracer application in rats. Values are mean and SDs (n = 4).
|
|
Copyright © 2004 by the Society of Nuclear Medicine.