Netrin-1 promotes mesenchymal stem cell revascularization of limb ischaemia

Diabetes & Vascular Disease Research : Official Journal of the International Society of Diabetes and Vascular Disease
Xianjin KeQian Li

Abstract

This study examines the effect and mechanism of action of Netrin-1 on bone marrow mesenchymal stem cells in angiogenesis. Tube formation and migration of bone marrow mesenchymal stem cells were observed in cell culture. Bone marrow mesenchymal stem cells or Netrin-1-bone marrow mesenchymal stem cells were injected into the ischaemic area of the rat hind limb on the first day after surgery. Laser Doppler perfusion imaging was performed to analyse the levels of vascular endothelial growth factor in plasma and muscles, and immunohistochemistry and immunofluorescence were used to analyse angiogenesis. Bone marrow mesenchymal stem cells in medium containing Netrin-1 markedly increased the number of tubes formed and the migration of bone marrow mesenchymal stem cells compared with the untreated control group. The function of Netrin-1 in tube formation and migration is similar to vascular endothelial growth factor, and combined with vascular endothelial growth factor, Netrin-1 has more enhanced effect than in the other three groups. The Netrin-1-bone marrow mesenchymal stem cell group had better augmented blood-perfusion scores and vessel densities, as well as improved function of the ischaemic limb than that of the group injected wit...Continue Reading

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Methods Mentioned

BETA
flow cytometry
enzyme-linked immunosorbent assay
electrophoresis
ELISA
fluorescence microscopy
genetic modification

Software Mentioned

LDPI PeriScan PIM 3 System

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