PMID- 15023891 OWN - NLM STAT- MEDLINE DCOM- 20040715 LR - 20220409 IS - 1524-4539 (Electronic) IS - 0009-7322 (Linking) VI - 109 IP - 12 DP - 2004 Mar 30 TI - Local delivery of marrow-derived stromal cells augments collateral perfusion through paracrine mechanisms. PG - 1543-9 AB - BACKGROUND: Bone marrow cell therapy is reported to contribute to collateral formation through cell incorporation into new or remodeling vessels. However, the possible role of a paracrine contribution to this effect is less well characterized. METHODS AND RESULTS: Murine marrow-derived stromal cells (MSCs) were purified by magnetic bead separation of cultured bone marrow. The release of vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), placental growth factor (PlGF), and monocyte chemoattractant protein-1 (MCP-1) was demonstrated by analysis of MSC conditioned media (MSC-CM). MSC-CM enhanced proliferation of endothelial cells and smooth muscle cells in a dose-dependent manner; anti-VEGF and anti-FGF antibodies only partly attenuated these effects. Balb/C mice (n=10) underwent distal femoral artery ligation, followed by adductor muscle injection of 1x10(6) MSCs 24 hours later. Compared with controls injected with media (n=10) or mature endothelial cells (n=8), distal limb perfusion improved, and mid-thigh conductance vessels increased in number and total cross-sectional area. MSC injection improved limb function and appearance, reduced the incidence of auto-amputation, and attenuated muscle atrophy and fibrosis. After injection, labeled MSCs were seen dispersed between muscle fibers but were not seen incorporated into mature collaterals. Injection of MSCs increased adductor muscle levels of bFGF and VEGF protein compared with controls. Finally, colocalization of VEGF and transplanted MSCs within adductor tissue was demonstrated. CONCLUSIONS: MSCs secrete a wide array of arteriogenic cytokines. MSCs can contribute to collateral remodeling through paracrine mechanisms. FAU - Kinnaird, T AU - Kinnaird T AD - Cardiovascular Research Institute, Washington, DC 20010, USA. tim.kinnaird@medstar.net FAU - Stabile, E AU - Stabile E FAU - Burnett, M S AU - Burnett MS FAU - Shou, M AU - Shou M FAU - Lee, C W AU - Lee CW FAU - Barr, S AU - Barr S FAU - Fuchs, S AU - Fuchs S FAU - Epstein, S E AU - Epstein SE LA - eng PT - Evaluation Study PT - Journal Article DEP - 20040315 PL - United States TA - Circulation JT - Circulation JID - 0147763 RN - 0 (Chemokine CCL2) RN - 0 (Culture Media, Conditioned) RN - 0 (Growth Substances) RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (Pgf protein, mouse) RN - 0 (Pregnancy Proteins) RN - 0 (Transcription Factors) RN - 0 (Vascular Endothelial Growth Factor A) RN - 103107-01-3 (Fibroblast Growth Factor 2) RN - 144589-93-5 (Placenta Growth Factor) SB - IM EIN - Circulation. 2005 Jul 26;112(4):e73 MH - Animals MH - Cells, Cultured/metabolism/transplantation MH - Chemokine CCL2/metabolism MH - *Collateral Circulation MH - Culture Media, Conditioned/pharmacology MH - Endothelial Cells/cytology/drug effects/metabolism MH - Endothelium, Vascular/cytology/drug effects MH - Fibroblast Growth Factor 2/metabolism MH - Fibrosis MH - Growth Substances/*metabolism MH - Hindlimb/*blood supply MH - Hypoxia-Inducible Factor 1, alpha Subunit MH - Immunomagnetic Separation MH - Injections, Intramuscular MH - Ischemia/physiopathology/*therapy MH - *Mesenchymal Stem Cell Transplantation MH - Mice MH - Mice, Inbred BALB C MH - Muscle, Skeletal/blood supply/pathology MH - Muscle, Smooth, Vascular/cytology/drug effects MH - Muscular Atrophy/etiology/pathology MH - Myocytes, Smooth Muscle/cytology/drug effects/metabolism MH - *Paracrine Communication MH - Placenta Growth Factor MH - Pregnancy Proteins/metabolism MH - Stromal Cells/*transplantation MH - Transcription Factors/biosynthesis/genetics MH - Vascular Endothelial Growth Factor A/metabolism EDAT- 2004/03/17 05:00 MHDA- 2004/07/16 05:00 CRDT- 2004/03/17 05:00 PHST- 2004/03/17 05:00 [pubmed] PHST- 2004/07/16 05:00 [medline] PHST- 2004/03/17 05:00 [entrez] AID - 01.CIR.0000124062.31102.57 [pii] AID - 10.1161/01.CIR.0000124062.31102.57 [doi] PST - ppublish SO - Circulation. 2004 Mar 30;109(12):1543-9. doi: 10.1161/01.CIR.0000124062.31102.57. Epub 2004 Mar 15.