title: Migration potential and gene expression profile of human mesenchymal stem cells induced by CCL25.
abstract: Recruitment of mesenchymal stem cells (MSC) to tissue damages is a promising approach for in situ tissue regeneration. The physiological mechanisms and regulatory processes of MSC trafficking to injured tissue remain poorly understood. However, the pivotal role of chemokines in MSC recruitment has already been shown. The aim of this study was to determine the migratory potential and the gene expression profile of MSC stimulated with the CC chemokine CCL25 (TECK). Bone marrow derived human MSC were exposed to different doses of CCL25 in a standardized chemotaxis assay. Microarray gene expression profiling and pathway analysis were performed for CCL25 stimulated MSC. Maximum migration of MSC towards CCL25 was observed at 10(3) nM. Microarray analysis revealed an induction of molecules directly involved in chemotaxis and homing of bone marrow cells (CXCL1-3, CXCL8, PDE4B), cytoskeletal and membrane reorganisation (CXCL8, PLD1, IGFBP1), cellular polarity (PLD1), and cell movement (CXCL1-3, CXCL6, CXCL8, PTGS2, PDE4B, TGM2). Respective chemokine secretion was confirmed by protein membrane-array analysis. The activation of CXCR2 ligands (CXCL1-3, CXCL5-6, CXCL8) and a LIF-receptor/gp130 ligand (LIF) indicated an involvement of the respective signaling pathways during initiation of chemotaxis and migration. These results suggest CCL25 as a new potential candidate for further in situ regeneration approaches.
authors.affiliation: Tissue Engineering Laboratory and Berlin-Brandenburg Center for Regenerative Therapies, Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, CCM, Tucholskystr. 2, 10117 Berlin, Germany.
authors.forename: Tabea
authors.initials: T
authors.lastname: Binger
authors.forename: Stefan
authors.initials: S
authors.lastname: Stich
authors.forename: Kristin
authors.initials: K
authors.lastname: Andreas
authors.forename: Christian
authors.initials: C
authors.lastname: Kaps
authors.forename: Orhan
authors.initials: O
authors.lastname: Sezer
authors.forename: Michael
authors.initials: M
authors.lastname: Notter
authors.forename: Michael
authors.initials: M
authors.lastname: Sittinger
authors.forename: Jochen
authors.initials: J
authors.lastname: Ringe
mesh_terms: D002465:Cell Movement; D019742:Chemokines, CC / Q000494:pharmacology*; D005434:Flow Cytometry; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation; D006801:Humans; D059630:Mesenchymal Stem Cells / Q000187:drug effects*; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: C108074:CCL25 protein, human; D019742:Chemokines, CC