The many facets of SDF-1alpha, CXCR4 agonists and antagonists on hematopoietic progenitor cells.

Article Details

Citation
Copy to clipboard

Faber A, Roderburg C, Wein F, Saffrich R, Seckinger A, Horsch K, Diehlmann A, Wong D, Bridger G, Eckstein V, Ho AD, Wagner W

The many facets of SDF-1alpha, CXCR4 agonists and antagonists on hematopoietic progenitor cells.

J Biomed Biotechnol. 2007;2007(3):26065. Epub 2007 Apr 23.

PubMed ID
17541466 [ View in PubMed
]
Abstract

Stromal cell-derived factor-1alpha (SDF-1alpha) has pleiotropic effects on hematopoietic progenitor cells (HPCs). We have monitored podia formation, migration, proliferation, and cell-cell adhesion of human HPC under the influence of SDF-1alpha, a peptide agonist of CXCR4 (CTCE-0214), a peptide antagonist (CTCE-9908), and a nonpeptide antagonist (AMD3100). Whereas SDF-1alpha induced migration of CD34(+) cells in a dose-dependent manner, CTCE-0214, CTCE-9908, and AMD3100 did not induce chemotaxis in this concentration range albeit the peptides CTCE-0214 and CTCE-9908 increased podia formation. Cell-cell adhesion of HPC to human mesenchymal stromal cells was impaired by the addition of SDF-1alpha, CTCE-0214, and AMD3100. Proliferation was not affected by SDF-1alpha or its analogs. Surface antigen detection of CXCR4 was reduced upon treatment with SDF-1alpha or AMD3100 and it was enhanced by CTCE-9908. Despite the fact that all these molecules target the same CXCR4 receptor, CXCR4 agonists and antagonists have selective effects on different functions of the natural molecule.

DrugBank Data that Cites this Article

Drugs