Human Cell Surface Receptors as Molecular Imaging Candidates for Metastatic Prostate Cancer

  • Sroka I
  • Pond G
  • Nagle R
  • et al.
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Abstract

Existing clinical imaging procedures lack sensitivity and specificity in detecting early prostate cancer bone metastatic lesions. In this study, we developed a highly reproducible bone metastasis xenograft model and identified possible molecular imaging candidates for detecting early bone metastatic lesions. Bone trophic human prostate cells (PC-3B1) were isolated and characterized for their ability to reach bone after intracardiac injection into SCID mice. The appearances of skeletal metastases were evaluated using digital radiographic imaging and confirmed by necropsy and histology. The PC-3B1 cells retain a bone homing phenotype after long term propagation in tissue culture and exhibit progressive bone lesions within 3 weeks following intracardiac injection. Comparative transcription signatures of PC-3 and PC-3B1 cells were determined using a cancer specific microarray and confirmed by RT-PCR analysis. The analysis identified increased expression of four cell surface molecules in PC-3B1 cells that may be suitable as molecular imaging candidates to detect bone micro metastases.

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Sroka, I. C., Pond, G. D., Nagle, R. B., Porreca, F., King, T., Pestano, G., … Cress, A. E. (2009). Human Cell Surface Receptors as Molecular Imaging Candidates for Metastatic Prostate Cancer. The Open Prostate Cancer Journal, 2(1), 59–66. https://doi.org/10.2174/1876822900902010059

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