PMID- 18049311 OWN - NLM STAT- MEDLINE DCOM- 20080205 LR - 20220316 IS - 0160-2446 (Print) IS - 0160-2446 (Linking) VI - 50 IP - 4 DP - 2007 Oct TI - Therapeutic effects of autologous bone marrow cells and metabolic intervention in the ischemic hindlimb of spontaneously hypertensive rats involve reduced cell senescence and CXCR4/Akt/eNOS pathways. PG - 424-33 AB - Peripheral arterial disease (PAD) is a major health problem, especially when associated with severe hypertension. Administration of autologous bone marrow cells (BMCs) is emerging as a novel intervention to induce neoangiogenesis in ischemic limb models and in patients with PAD. This study evaluates the neovascularization capacity of BMCs alone or in combination with metabolic cotreatment (0.8% vitamin E, 0.05% vitamin C, and 5% of L-arginine) in a rat model of ischemic hindlimbs of spontaneously hypertensive rats (SHR) and normotensive Wistar-Kyoto rats (WKY). Molecular mechanisms were investigated in bone marrow-derived endothelial progenitor cells (BM-EPC) derived from rats. BMC therapy increased blood flow and capillary densities and Ki67 proliferative marker, and it decreased interstitial fibrosis. These effects were amplified by metabolic cotreatment, an intervention that induces vascular protection at least partly through the nitric oxide (NO)/endothelial nitric oxide synthase (eNOS) pathway, reduction of systemic oxidative stress, and macrophage activation. In addition, BMC therapy alone and, more consistently, in combination with metabolic treatment, ameliorated BM-EPC functional activity via decreased cellular senescence and improved homing capacity by increasing CXCR4-expression levels. These data suggest potential therapeutic effects of autologous BMCs and metabolic treatment in hypertensive PAD patients. FAU - de Nigris, Filomena AU - de Nigris F AD - Department of General Pathology, Division of Clinical Pathology and Excellence Research Center on Cardiovascular Diseases, 1st School of Medicine, II University of Naples, Naples, Italy. FAU - Balestrieri, Maria Luisa AU - Balestrieri ML FAU - Williams-Ignarro, Sharon AU - Williams-Ignarro S FAU - D'Armiento, Francesco P AU - D'Armiento FP FAU - Lerman, Lilach O AU - Lerman LO FAU - Byrns, Russell AU - Byrns R FAU - Crimi, Ettore AU - Crimi E FAU - Palagiano, Antonio AU - Palagiano A FAU - Fatigati, Gennaro AU - Fatigati G FAU - Ignarro, Louis J AU - Ignarro LJ FAU - Napoli, Claudio AU - Napoli C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Cardiovasc Pharmacol JT - Journal of cardiovascular pharmacology JID - 7902492 RN - 0 (Antioxidants) RN - 0 (Cxcr4 protein, rat) RN - 0 (Receptors, CXCR4) RN - 31C4KY9ESH (Nitric Oxide) RN - 94ZLA3W45F (Arginine) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type III) RN - EC 1.14.13.39 (Nos3 protein, rat) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) SB - IM MH - Animals MH - Antioxidants/therapeutic use MH - Apoptosis/drug effects MH - Arginine/therapeutic use MH - Arteries/drug effects/metabolism/physiopathology MH - Bone Marrow Transplantation/*methods MH - Capillaries/pathology MH - Cell Proliferation/drug effects MH - Cellular Senescence/drug effects MH - Endothelial Cells/cytology/metabolism MH - Hindlimb/*blood supply/drug effects/physiopathology MH - Ischemia/metabolism/physiopathology/*therapy MH - Leukocytes/pathology MH - Male MH - Mesenchymal Stem Cells/cytology/drug effects/*metabolism MH - Muscle, Skeletal/blood supply/pathology MH - Nitric Oxide/blood MH - Nitric Oxide Synthase Type II/metabolism MH - Nitric Oxide Synthase Type III MH - Oxidative Stress/drug effects MH - Peripheral Vascular Diseases/therapy MH - Phosphorylation/drug effects MH - Proto-Oncogene Proteins c-akt/metabolism MH - Rats MH - Rats, Inbred SHR MH - Rats, Inbred WKY MH - Receptors, CXCR4/metabolism MH - Regional Blood Flow EDAT- 2007/12/01 09:00 MHDA- 2008/02/06 09:00 CRDT- 2007/12/01 09:00 PHST- 2007/12/01 09:00 [pubmed] PHST- 2008/02/06 09:00 [medline] PHST- 2007/12/01 09:00 [entrez] AID - 00005344-200710000-00011 [pii] AID - 10.1097/FJC.0b013e31812564e4 [doi] PST - ppublish SO - J Cardiovasc Pharmacol. 2007 Oct;50(4):424-33. doi: 10.1097/FJC.0b013e31812564e4.