Blood online
Home About Blood Authors Subscriptions Permission Advertising Public Access contact us
 

 
Advanced
Current Issue
First Edition
Future Articles
Archives
Submit to Blood
Search
American Society of Hematology
Meeting Abstracts
Email Alerts
 Blood, 15 July 2005, Vol. 106, No. 2, pp. 485-493.
Prepublished online as a Blood First Edition Paper on March 29, 2005; DOI 10.1182/blood-2004-10-4145.

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
2004-10-4145v1
106/2/485    most recent
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Right arrow Rights and Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Basu, S.
Right arrow Articles by Broxmeyer, H. E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Basu, S.
Right arrow Articles by Broxmeyer, H. E.
Related Collections
Right arrow Hematopoiesis and Stem Cells
Right arrow Cell Adhesion and Motility
Right arrow Signal Transduction
Right arrow Chemokines, Cytokines, and Interleukins
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

arrow to previous article Previous Article  |  Table of Contents  |  Next Article next article arrow

HEMATOPOIESIS

Transforming growth factor-{beta}1 modulates responses of CD34+ cord blood cells to stromal cell-derived factor-1/CXCL12

Sunanda Basu, and Hal E. Broxmeyer

From the Department of Microbiology and Immunology, the Walther Oncology Center, Indiana University School of Medicine, Indianapolis; and the Walther Cancer Institute, Indianapolis.

Disruption of stromal cell-derived factor-1 (SDF-1/CXCL12 [CXC chemokine ligand 12]) interaction leads to mobilization of stem/progenitor cells from bone marrow to circulation. However, prolonged exposure of CD34+ cells to SDF-1 desensitizes them to SDF-1. So how do cells remain responsive to SDF-1 in vivo when they are continuously exposed to SDF-1? We hypothesized that one or more mechanisms mediated by cytokines exist that could modulate SDF-1 responsiveness of CD34+ cells and the desensitization process. We considered transforming growth factor-{beta}1 (TGF-{beta}1) a possible candidate, since TGF-{beta}1 has effects on CD34+ cells and is produced by stromal cells, which provide niches for maintenance and proliferation of stem/progenitor cells. TGF-{beta}1 significantly restored SDF-1–induced chemotaxis and sustained adhesion responses in cord blood CD34+ cells preexposed to SDF-1. Effects of TGF-{beta}1 were dependent on the dose and duration of TGF-{beta}1 pretreatment. Phosphorylation of extracellular signal-regulated kinase 1 (Erk1)/Erk2 was implicated in TGF-{beta}1 modulation of migratory and adhesion responses to SDF-1. Our results indicate that low levels of TGF-{beta}1 can modulate SDF-1 responsiveness of CD34+ cells and thus may facilitate SDF-1–mediated retention and nurturing of stem/progenitor cells in bone marrow.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:


Home page
 J. Immunol.Home page
S. Basu, N. T. Ray, S. J. Atkinson, and H. E. Broxmeyer
Protein Phosphatase 2A Plays an Important Role in Stromal Cell-Derived Factor-1/CXC Chemokine Ligand 12-Mediated Migration and Adhesion of CD34+ Cells
J. Immunol., September 1, 2007; 179(5): 3075 - 3085.
[Abstract] [Full Text] [PDF]

Home page
 BloodHome page
G. Li, S. Basu, M.-K. Han, Y.-J. Kim, and H. E. Broxmeyer
Influence of ERK activation on decreased chemotaxis of mature human cord blood monocyte-derived dendritic cells to CCL19 and CXCL12
Blood, April 15, 2007; 109(8): 3173 - 3176.
[Abstract] [Full Text] [PDF]

Home page
 JNCI J Natl Cancer InstHome page
T. Nakayama, N. Mutsuga, and G. Tosato
Effect of Fibroblast Growth Factor 2 on Stromal Cell-Derived Factor 1 Production by Bone Marrow Stromal Cells and Hematopoiesis
J Natl Cancer Inst, February 7, 2007; 99(3): 223 - 235.
[Abstract] [Full Text] [PDF]

Home page
 Cancer Res.Home page
L. Yang, E. Jackson, B. M. Woerner, A. Perry, D. Piwnica-Worms, and J. B. Rubin
Blocking CXCR4-Mediated Cyclic AMP Suppression Inhibits Brain Tumor Growth In vivo
Cancer Res., January 15, 2007; 67(2): 651 - 658.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
G. C. Schatteman, M. Dunnwald, and C. Jiao
Biology of bone marrow-derived endothelial cell precursors
Am J Physiol Heart Circ Physiol, January 1, 2007; 292(1): H1 - H18.
[Abstract] [Full Text] [PDF]

Home page
 Stem CellsHome page
R. A. Panepucci, R. T. Calado, V. Rocha, R. Proto-Siqueira, W. A. Silva Jr., and M. A. Zago
Higher Expression of Transcription Targets and Components of the Nuclear Factor-{kappa}B Pathway Is a Distinctive Feature of Umbilical Cord Blood CD34+ Precursors
Stem Cells, January 1, 2007; 25(1): 189 - 196.
[Abstract] [Full Text] [PDF]


click for free articles
home about blood authors subscriptions permissions advertising public access contact us
  Copyright © 2005 by American Society of Hematology         Online ISSN: 1528-0020