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Human Bone Marrow Endothelial Cells Elaborate Non-stromal-cell-derived Factor-1 (SDF-1)-dependent Chemoattraction and SDF-1-dependent Transmigration of Haematopoietic Progenitors

Overview
Journal Br J Haematol
Specialty Hematology
Date 2003 May 20
PMID 12752108
Citations 7
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Abstract

This study investigated human bone marrow endothelial cells (BMEC) chemoattractive activity in relation to haematopoietic cell trafficking. BMEC-conditioned medium induced chemoattraction of haematopoietic progenitor cells. Migration was not inhibited by pretreating the cells with pertussis toxin (PTX) or 12G5, indicating that the chemoattractive activity was not dependent on stromal-cell-derived factor-1 (SDF-1). Spontaneous migration, but not SDF-1-mediated chemotaxis of haematopoietic progenitors, was better supported by BMEC as compared with umbilical vein endothelial cells. The superior migration was abolished by pretreating the cells with PTX, indicating that BMEC-derived SDF-1 favours bone marrow endothelium, with better transmigration of haematopoietic progenitors.

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