Induction of Angiogenesis by Matrigel coating of VEGF loaded PEG/PCL based hydrogel scaffolds for hBMSC trasplantation
- Induction of Angiogenesis by Matrigel coating of VEGF loaded PEG/PCL based hydrogel scaffolds for hBMSC trasplantation
- 정연주; Kyung-Chul Kim; Jun-Young Heo; Kaipeng Jing; Kyung Eun Lee; Jun Seok Hwang; Kyu Lim; Deog-Yeon Jo; 안재평; Jin-Man Kim; 허강무; 박종일
- Induction; Transplantation; angiogenesis; controlled release,; hBMSC; hydrogel,; VEGF
- Issue Date
- Molecules and cells
- VOL 38, NO 7, 663-668
- hBMSCs are multipotent cells that are useful for tissue regeneration to treat degenerative diseases and others for their differentiation ability into chondrocytes, osteoblasts, adipocytes, hepatocytes and neuronal cells. In this study, biodegradable elastic hydrogels consisting of hydrophilic
poly(ethylene glycol) (PEG) and hydrophobic poly( - caprolactone) (PCL) scaffolds were evaluated for tissue engineering because of its biocompatibility and the ability to control the release of bioactive peptides. The primary cultured cells from human bone marrow are confirmed as hBMSC by immunohistochemical analysis. Mesenchymal stem cell markers (collagen type I, fibronectin, CD54, integrin1
, and Hu protein) were shown to be positive, while hematopoietic stem cell markers (CD14 and CD45) were shown to be negative. Three different hydrogel scaffolds with different block compositions (PEG:PCL=6:14 and 14:6 by weight) were fabricated using the salt leaching method. The hBMSCs were expanded, seeded on the scaffolds, and cultured up to 8 days under static conditions in Iscove's Modified Dulbecco's Media (IMDM). The growth of MSCs cultured on the hydrogel with PEG/PCL= 6/14 was faster than that of the others. In addition, the morphology of
MSCs seemed to be normal and no cytotoxicity was found. The coating of the vascular endothelial growth factor (VEGF) containing scaffold with Matrigel slowed down the release of VEGF in vitro and promoted the angiogenesis when transplanted into BALB/c nude mice. These results suggest that hBMSCs can be supported by a biode gradable hydrogel scaffold for effective cell growth, and
enhance the angiogenesis by Matrigel coating.
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