Abstract | BACKGROUND: METHODS: RESULTS: The results show that formation of lung and lymph node metastases from orthotopic castration resistant prostate tumors was inhibited by tasquinimod treatment. Importantly, establishment of tumors in the bone after intratibial implantation was suppressed by tasquinimod. In addition, establishment and growth of subcutaneous tumors were affected. Both in primary tumors and serum from treated mice an upregulation of thrombospondin 1 was observed. Further, downregulation of the hypoxia driven genes VEGF, CXCR4, and LOX was detected in the primary tasquinimod-treated tumors and decreased expression of chemotactic ligand SDF-1 was demonstrated in the lungs. Thus, these molecular changes could contribute to the anti-angiogenic and anti-metastatic effects of tasquinimod. CONCLUSIONS: In conclusion, this study and clinical data show that tasquinimod interferes with the metastatic process, presumably by inhibition of tumor establishment. Therefore, tasquinimod is an interesting treatment option for patients with prostate cancer prone to metastasis.
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Authors | Karin Jennbacken, Karin Welén, Anders Olsson, Bengt Axelsson, Marie Törngren, Jan-Erik Damber, Tomas Leanderson |
Journal | The Prostate
(Prostate)
Vol. 72
Issue 8
Pg. 913-24
(Jun 01 2012)
ISSN: 1097-0045 [Electronic] United States |
PMID | 22287276
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2011 Wiley Periodicals, Inc. |
Chemical References |
- Angiogenesis Inhibitors
- Basic Helix-Loop-Helix Leucine Zipper Transcription Factors
- HIF1A protein, human
- Hypoxia-Inducible Factor 1, alpha Subunit
- Quinolines
- Quinolones
- SPZ1 protein, human
- tasquinimod
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Topics |
- Adenocarcinoma
(drug therapy, metabolism, pathology)
- Angiogenesis Inhibitors
(therapeutic use)
- Animals
- Basic Helix-Loop-Helix Leucine Zipper Transcription Factors
(metabolism)
- Cell Line, Tumor
- Down-Regulation
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit
(metabolism)
- Male
- Mice
- Mice, Nude
- Neoplasm Metastasis
(drug therapy)
- Orchiectomy
- Prostatic Neoplasms
(drug therapy, metabolism, pathology)
- Quinolines
(therapeutic use)
- Quinolones
- Treatment Outcome
- Up-Regulation
- Xenograft Model Antitumor Assays
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