Synergistic Angiogenic Effect of Codelivering Fibroblast Growth Factor 2 and Granulocyte-Colony Stimulating Factor from Fibrin Scaffolds and Bone Marrow Transplantation in Critical Limb Ischemia

Increasing evidence suggests that therapeutic angiogenesis strategies utilizing cytokines and stem cells are necessary to treat traumatic vascular events such as critical limb ischemia and peripheral artery disease. In this study, basic fibroblast growth factor 2 (FGF-2) and granulocyte-colony stimu...

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Veröffentlicht in:Tissue engineering. Part A 2011-01, Vol.17 (1-2), p.243-254
Hauptverfasser: Layman, Hans, Rahnemai-Azar, Amir A, Pham, Si M., Tsechpenakis, Gavriil, Andreopoulos, Fotios M.
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container_end_page 254
container_issue 1-2
container_start_page 243
container_title Tissue engineering. Part A
container_volume 17
creator Layman, Hans
Rahnemai-Azar, Amir A
Pham, Si M.
Tsechpenakis, Gavriil
Andreopoulos, Fotios M.
description Increasing evidence suggests that therapeutic angiogenesis strategies utilizing cytokines and stem cells are necessary to treat traumatic vascular events such as critical limb ischemia and peripheral artery disease. In this study, basic fibroblast growth factor 2 (FGF-2) and granulocyte-colony stimulating factor (G-CSF) were immobilized in fibrin matrices and codelivered in combination with unfractionated bone marrow cells. Hindlimb ischemia was induced on young (6–7 weeks) Balb/C mice, and fibrin gels containing 100 ng/mL of FGF-2 and G-CSF were implanted adjacent to the ligation points. In addition, 1 × 10 6 bone marrow (BM) cells were injected into five locations in the ischemic muscle immediately after ligation and artery excision. Hindlimb reperfusion was determined by Laser Doppler Perfusion Imaging and immunohistochemistry for CD31+ and smooth muscle actin-positive cells at 2, 4, and 8 weeks postsurgery to identify capillary formation and maturation. A fluorescent vessel painting technique was also utilized to determine the extent of angiogenesis and arteriogenesis in the hindlimb at 8 weeks postsurgery. The codelivery of FGF-2 and G-CSF in combination with BM cells led to enhanced therapeutic recovery in critical limb ischemia Balb/C mice after 8 weeks of treatment with 87.2% blood flow recovery and a significant increase ( p  
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subjects Animals
Bone marrow
Bone Marrow Cells - cytology
Bone Marrow Cells - drug effects
Bone Marrow Transplantation - methods
Care and treatment
Cattle
Cells, Cultured
Cytokines
Fibroblast Growth Factor 2 - chemistry
Fibroblast Growth Factor 2 - pharmacology
Fibroblast growth factors
Granulocyte colony-stimulating factor
Granulocyte Colony-Stimulating Factor - chemistry
Granulocyte Colony-Stimulating Factor - pharmacology
Health aspects
Hindlimb - pathology
Humans
Immunohistochemistry
Ischemia
Ischemia - therapy
Male
Mice
Mice, Inbred BALB C
Original Articles
Physiological aspects
Risk factors
Rodents
Stem cells
Tissue engineering
Tissue Scaffolds
Transplantation
title Synergistic Angiogenic Effect of Codelivering Fibroblast Growth Factor 2 and Granulocyte-Colony Stimulating Factor from Fibrin Scaffolds and Bone Marrow Transplantation in Critical Limb Ischemia
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