Abstract
To determine the effect of growth factor mobilization on the expression of adhesion molecules, we compared CD34+ progenitor cell (PC) populations from steady-state bone marrow (BM) with granulocyte–macrophage colony-stimulating factor (GM-CSF)-mobilized apheresis products (peripheral blood stem cell (PSC)) using flow cytometry. To increase the accuracy of this analysis, CD34+ cells were enriched (MiniMACS) before cytometric analysis. A significantly lower expression of very late antigen-4 (VLA-4), leukocyte function antigen-1 (LFA-1) and LFA-3 were observed on PSC compared to BM CD34+ cells. In addition, significantly lower mean fluorescence intensity (MFI) of VLA-4, VLA-5, intercellular adhesion molecule-1 (ICAM-1), and sialyl LewisX were observed on PSC as compared to BM CD34+ cells. Significantly higher levels of L-selectin and CD44 expression were observed on PSC as compared to BM CD34+ cells based on frequency and MFI (P ⩽ 0.05). In addition, the duration of GM-CSF administration or number of prior aphereses had no effect on adhesion molecule expression. These data suggest that decreased expression of adhesion molecules including VLA-4, LFA-1, ICAM-1 and LFA-3 play a role in PC mobilization. Based on these studies, we suggest that PC mobilization occurs as a stochastic process and is associated with the selection of CD34+ cells with low adhesion molecule expression.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Watanabe, T., Dave, B., Heimann, D. et al. GM-CSF-mobilized peripheral blood CD34+ cells differ from steady-state bone marrow CD34+ cells in adhesion molecule expression. Bone Marrow Transplant 19, 1175–1181 (1997). https://doi.org/10.1038/sj.bmt.1700814
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1038/sj.bmt.1700814
Keywords
This article is cited by
-
Distinguishing autocrine and paracrine signals in hematopoietic stem cell culture using a biofunctional microcavity platform
Scientific Reports (2016)
-
History of myeloid-derived suppressor cells
Nature Reviews Cancer (2013)
-
CD49d blockade by natalizumab in patients with multiple sclerosis affects steady-state hematopoiesis and mobilizes progenitors with a distinct phenotype and function
Bone Marrow Transplantation (2010)
-
The thrombopoietin receptor, c-Mpl, is a selective surface marker for human hematopoietic stem cells
Journal of Translational Medicine (2006)
-
Differential role for very late antigen-5 in mobilization and homing of hematopoietic stem cells
Bone Marrow Transplantation (2006)