The role of sialomucin CD164 (MGC-24v or endolyn) in prostate cancer metastasis

被引:62
作者
Havens, A. M.
Jung, Y.
Sun, Y. X.
Wang, J.
Shah, R. B.
Buhring, H. J.
Pienta, K. J.
Taichman, R. S.
机构
[1] Univ Michigan, Sch Dent, Dept Periodont & Oral Med, Ann Arbor, MI 48109 USA
[2] Univ Michigan, Dept Pathol, Ann Arbor, MI 48109 USA
[3] Univ Hosp, Dept Internal Med 2, Div Hematol Immunol Oncol & Rheumatol, Tubingen, Germany
[4] Univ Michigan, Dept Urol, Ann Arbor, MI 48109 USA
[5] Jiangsu Univ, Affiliated Hosp, Dept Ophthalmol, Zhenjiang 212001, Jiangsu, Peoples R China
关键词
D O I
10.1186/1471-2407-6-195
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background: The chemokine stromal derived factor-1 (SDF-1 or CXCL12) and its receptor CXCR4 have been demonstrated to be crucial for the homing of stem cells and prostate cancers to the marrow. While screening prostate cancers for CXCL12-responsive adhesion molecules, we identified CD164 (MGC-24) as a potential regulator of homing. CD164 is known to function as a receptor that regulates stem cell localization to the bone marrow. Results: Using prostate cancer cell lines, it was demonstrated that CXCL12 induced both the expression of CD164 mRNA and protein. Functional studies demonstrated that blocking CD164 on prostate cancer cell lines reduced the ability of these cells to adhere to human bone marrow endothelial cells, and invade into extracellular matrices. Human tissue microarrays stained for CD164 demonstrated a positive correlation with prostate-specific antigen levels, while its expression was negatively correlated with the expression of androgen receptor. Conclusion: Our findings suggest that CD164 may participate in the localization of prostate cancer cells to the marrow and is further evidence that tumor metastasis and hematopoietic stem cell trafficking may involve similar processes.
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页数:13
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