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2018 ; 6
(2
): 144-150
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Mesenchymal Stem Cells Differentiate to Endothelial Cells Using Recombinant
Vascular Endothelial Growth Factor -A
#MMPMID29761109
Khaki M
; Salmanian AH
; Abtahi H
; Ganji A
; Mosayebi G
Rep Biochem Mol Biol
2018[Apr]; 6
(2
): 144-150
PMID29761109
show ga
BACKGROUND: Vascular endothelial growth factor-A (VEGF-A), an endothelial
cell-specific mitogen produced by various cell types, plays important roles in
cell differentiation and proliferation. In this study we investigated the effect
of recombinant VEGF-A on differentiation of mesenchymal stem cells (MSCs) to
endothelial cells (ECs). METHODS: VEGF-A was expressed in E. coli BL21 (DE3) and
BL21 pLysS competent cells with the pET32a expression vector. Recombinant VEGF-A
protein expression was verified by SDS-PAGE and western blotting. Mesenchymal
stem cell differentiation to ECs in the presence of VEGF-A was evaluated by flow
cytometry and fluorescence microscopy. RESULTS: Recombinant VEGF-A was produced
in E. coli BL21 (DE3) cells at 0.8 mg/mL concentration. Expression of CD31 and CD
144 was significantly greater, while expression of CD90, CD73, and CD44 was
significantly less, in MSCs treated with our recombinant VEGF-A than in those
treated with the commercial protein (p < 0.05). CONCLUSION: Recombinant VEGF-A
expressed in a prokaryotic system can induce MSCs differentiation to ECs and can
be used in research and likely therapeutic applications.