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AMD3100 and CD26 modulate mobilization, engraftment, and survival of hematopoietic stem and progenitor cells mediated by the SDF-1/CXCL12-CXCR4 axis. 2007

Hal E Broxmeyer, and Giao Hangoc, and Scott Cooper, and Timothy Campbell, and Shigeki Ito, and Charlie Mantel
Department of Microbiology and Immunology, and the Walther Oncology Center, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA. hbroxmey@iupui.edu

The chemokine stromal cell-derived factor-1 (SDF-1/CXCL12) and its receptor, CXCR4, are involved in a number of facets of the regulation of hematopoiesis at the level of hematopoietic stem (HSCs) and progenitor (HPCs) cells. Modulation of this ligand-receptor interaction may be of clinical utility. We now report that: (1) the CC chemokine, macrophage inflammatory protein-1alpha (MIP-1alpha/CCL3) synergizes with AMD3100 (an antagonist of the binding of SDF-1/CXCL12 to CXCR4) to rapidly mobilize HPCs to the blood of mice; moreover, the combination of granulocyte colony-stimulating factor (G-CSF) with AMD3100 and MIP-1alpha/CCL3, given in a specific sequence, mobilizes the greatest number of HPCs compared to any combination of two of these mobilizing agents; (2) pretreatment of recipient mice with Diprotin A, an inhibitor of CD26/Dipeptidylpeptidase IV (DPPIV), enhances the competitive HSCs repopulating capacity of untreated donor cells; (3) the survival-enhancing effects of SDF-1/CXCL12 on HPCs subjected in vitro to delayed addition of growth factors (GFs) are mediated in part through the cell cycle-related proteins p21(cip1/waf1) (as assessed using p21(cip1/waf1) -/- and +/+ mice) and Mad2 (using Mad2 +/- and +/+ mice); and (4) deletion of CD26/DPPIV on mouse bone marrow cells increases the survival-enhancing effects of SDF-1/CXCL12 on HPCs. These results demonstrate the means to increase the mobilization of HPCs, the engrafting capability of HSCs, and responsiveness of HPCs to the survival-enhancing activity of SDF-1/CXCL12, effects that may be of practical value.

UI MeSH Term Description Entries
D008809 Mice, Inbred C3H An inbred strain of mouse that is used as a general purpose strain in a wide variety of RESEARCH areas including CANCER; INFECTIOUS DISEASES; sensorineural, and cardiovascular biology research. Mice, C3H,Mouse, C3H,Mouse, Inbred C3H,C3H Mice,C3H Mice, Inbred,C3H Mouse,C3H Mouse, Inbred,Inbred C3H Mice,Inbred C3H Mouse
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D008822 Mice, Transgenic Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN. Transgenic Mice,Founder Mice, Transgenic,Mouse, Founder, Transgenic,Mouse, Transgenic,Mice, Transgenic Founder,Transgenic Founder Mice,Transgenic Mouse
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D001854 Bone Marrow Cells Cells contained in the bone marrow including fat cells (see ADIPOCYTES); STROMAL CELLS; MEGAKARYOCYTES; and the immediate precursors of most blood cells. Bone Marrow Cell,Cell, Bone Marrow,Cells, Bone Marrow,Marrow Cell, Bone,Marrow Cells, Bone
D006571 Heterocyclic Compounds Cyclic compounds that include atoms other than carbon in their ring structure. Heterocyclic Compound,Compound, Heterocyclic,Compounds, Heterocyclic
D000080027 Cyclams Compounds made of fourteen-member tetraamine macrocycles which bind strongly to a wide range of metal ions. 1,4,8,11-Tetraazacyclotetradecane,Bicyclams,Cyclam Derivatives,Cyclens,Tetraazamacrocycles,Derivatives, Cyclam
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001596 Benzylamines Toluenes in which one hydrogen of the methyl group is substituted by an amino group. Permitted are any substituents on the benzene ring or the amino group. Phenylmethylamine,alpha-Aminotoluene,alpha Aminotoluene
D016179 Granulocyte Colony-Stimulating Factor A glycoprotein of MW 25 kDa containing internal disulfide bonds. It induces the survival, proliferation, and differentiation of neutrophilic granulocyte precursor cells and functionally activates mature blood neutrophils. Among the family of colony-stimulating factors, G-CSF is the most potent inducer of terminal differentiation to granulocytes and macrophages of leukemic myeloid cell lines. Colony-Stimulating Factor, Granulocyte,G-CSF,Myeloid Growth Factor,Colony Stimulating Factor, Granulocyte,Factor, Granulocyte Colony-Stimulating,Factor, Myeloid Growth,Granulocyte Colony Stimulating Factor,Growth Factor, Myeloid

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