Production of stromal cell-derived factor-1 (SDF-1)and expression of CXCR4 in human bone marrow endothelial cells.

Abstract:

:This study investigated the production of stromal cell-derived factor-1 (SDF-1) and the expression of CXCR4 in human bone marrow endothelial cells (BMECs). Human BMEC cell line BMEC-1 cells expressed SDF-1 mRNA, and conditioned medium induced chemoattraction of CD34+ cells. Migration was not inhibited by pretreating the input cells with pertussis toxin, indicating that the chemoattractive activity was not dependent on SDF-1. Three-day culture of BMEC-1 and primary human BMEC cells produced 1,710+/-204 and 1,050+/-153 pg/mL SDF-1alpha, respectively, which was much less than primary human BM stromal cells (29,536+/-532 pg/ mL). By immuno-histochemistry, CXCR4 was detected in the endothelial cells lining sinusoids, arterioles, and venules in the bone marrow. However, cultured BMECs and BMEC-1 cells did not express CXCR4 on their surfaces. These results indicate that BMECs produce and release small amounts of SDF-1 and express CXCR4 in vivo only.

journal_name

J Korean Med Sci

authors

Yun HJ,Jo DY

doi

10.3346/jkms.2003.18.5.679

keywords:

subject

Has Abstract

pub_date

2003-10-01 00:00:00

pages

679-85

issue

5

eissn

1011-8934

issn

1598-6357

pii

200310679

journal_volume

18

pub_type

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