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Inhibition of Prostate Cancer Bone Metastasis by Synthetic TF Antigen Mimic/galectin-3 Inhibitor Lactulose-L-leucine

Overview
Journal Neoplasia
Publisher Elsevier
Specialty Oncology
Date 2012 Feb 23
PMID 22355275
Citations 40
Authors
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Abstract

Currently incurable, prostate cancer metastasis has a remarkable ability to spread to the skeleton. Previous studies demonstrated that interactions mediated by the cancer-associated Thomsen-Friedenreich glycoantigen (TF-Ag) and the carbohydrate-binding protein galectin-3 play an important role in several rate-limiting steps of cancer metastasis such as metastatic cell adhesion to bone marrow endothelium, homotypic tumor cell aggregation, and clonogenic survival and growth. This study investigated the ability of a synthetic small-molecular-weight nontoxic carbohydrate-based TF-Ag mimic lactulose-L-leucine (Lac-L-Leu) to inhibit these processes in vitro and, ultimately, prostate cancer bone metastasis in vivo. Using an in vivo mouse model, based on intracardiac injection of human PC-3 prostate carcinoma cells stably expressing luciferase, we investigated the ability of Lac-L-Leu to impede the establishment and growth of bone metastasis. Parallel-flow chamber assay, homotypic aggregation assay, modified Boyden chamber assay, and clonogenic growth assay were used to assess the effects of Lac-L-Leu on tumor cell adhesion to the endothelium, homotypic tumor cell aggregation, transendothelial migration, and clonogenic survival and growth, respectively. We report that daily intraperitoneal administration of Lac-L-Leu resulted in a three-fold (P < .05) decrease in metastatic tumor burden compared with the untreated control. Mechanistically, the effect of Lac-L-Leu, which binds and inhibits galectins by mimicking essential structural features of the TF-Ag, was associated with a dose-dependent inhibition of prostate cancer cell adhesion to bone marrow endothelium, homotypic aggregation, transendothelial migration, and clonogenic growth. We conclude that small-molecular-weight carbohydrate-based compounds targeting β-galactoside-mediated interactions could provide valuable means for controlling and preventing metastatic prostate cancer spread to the skeleton.

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References
1.
Fukumori T, Kanayama H, Raz A . The role of galectin-3 in cancer drug resistance. Drug Resist Updat. 2007; 10(3):101-8. PMC: 3626271. DOI: 10.1016/j.drup.2007.04.001. View

2.
Tejler J, Skogman F, Leffler H, Nilsson U . Synthesis of galactose-mimicking 1H-(1,2,3-triazol-1-yl)-mannosides as selective galectin-3 and 9N inhibitors. Carbohydr Res. 2007; 342(12-13):1869-75. DOI: 10.1016/j.carres.2007.03.012. View

3.
Kuwabara I, Liu F . Galectin-3 promotes adhesion of human neutrophils to laminin. J Immunol. 1996; 156(10):3939-44. View

4.
Rubens R . Bone metastases--the clinical problem. Eur J Cancer. 1998; 34(2):210-3. DOI: 10.1016/s0959-8049(97)10128-9. View

5.
Pienta K, Naik H, Akhtar A, Yamazaki K, Replogle T, Lehr J . Inhibition of spontaneous metastasis in a rat prostate cancer model by oral administration of modified citrus pectin. J Natl Cancer Inst. 1995; 87(5):348-53. DOI: 10.1093/jnci/87.5.348. View