期刊
PROSTATE
卷 66, 期 7, 页码 708-717出版社
WILEY
DOI: 10.1002/pros.20392
关键词
MRI; mouse models; prostate cancer; spectroscopy; ErbB-2; Pten
资金
- NCI NIH HHS [R03CA20337, U54CA100970-02, R01CA093495, P30CA51008, K01CA855022, T32CA09686, R014CA75503, R01CA86072, R01CA70896] Funding Source: Medline
- NINDS NIH HHS [R41NS050141] Funding Source: Medline
BACKGROUND. Mouse prostate cancer modeling presents unique obstacles to the study of spontaneous tumor initiation and progression due to the anatomical location of the tissue. RESULTS. High resolution (130 mu m(x) x 130 mu m(y) x 300 mu m(z)), three-dimensional MRI allowed for the visualization, segmentation, and volumetric measurement of the prostate from normal and genetically engineered animals, in vivo. Additionally, MRS performed on the prostate epithelia of probasin-ErbB-2 Delta x Pten(+/-) mice identified changes in the relative concentrations of the metabolites choline and citrate, which was not observed in TRAMP mice. METHODS. T1-weighted MRI was performed on normal, TRAMP, probasin-ErbB-2/Her2/Neu (probasin-ErbB-2 Delta), and probasin-ErbB-2 Delta in the context of decreased Pten activity (probasin-ErbB-2 Delta x Pten(+/-)) mice. Volume-localized single-voxel proton magnetic resonance spectroscopy (SVS H-1 MRS) was also performed. CONCLUSIONS. The data presented supports the use of combined MRI and MRS for the measurement of biochemical and morphometric alterations in mouse models of prostate cancer.
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