Effects of collagen I coating on the porous poly-lactide-co-glycolid on adhesion, proliferation, and differentiation of mesenchymal stem cells

To investigate the effects of collagen I on the adhesion, proliferation, and differentiation of MSCs on PLGA. Collagen I was added onto the surface of pores in pieces of 3-D porous poly-lactide-co-glycolid (PLGA). Bone marrow-derived mesenchymal stem cells (MSCs) were obtained from New Zealand rabbi...

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Veröffentlicht in:Zhong hua yi xue za zhi 2003-04, Vol.83 (7), p.580-583
Hauptverfasser: Liu, Gang, Hu, Yun-yu, Yan, Yong-nian, Xiong, Zhuo, Wang, Zhe, Lu, Rong, Bai, Jian-ping, Yang, Jia-ji
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Sprache:chi
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Zusammenfassung:To investigate the effects of collagen I on the adhesion, proliferation, and differentiation of MSCs on PLGA. Collagen I was added onto the surface of pores in pieces of 3-D porous poly-lactide-co-glycolid (PLGA). Bone marrow-derived mesenchymal stem cells (MSCs) were obtained from New Zealand rabbits and were cultured for 3 generations, inoculated into the pores of PLGA pieces with the volume of 0.3 cm x 1.2 cm x 2.0 cm, and then cultured in solution with [(3)H]-thymidine deoxyribose (TdR). PLGA pieces not coated by collagen I were used as controls. The incorporation rate of [(3)H]-TdR was detected 2, 4, 6, and 8 hours, and 7, 14, and 21 days after culture, shown in count per minute (CPM) value, to determine the adhesion and proliferation of the MSCs. RT-POCR was used to examine the expressions of mRNA of the osteoblast markers: osteocalcin (OCN), alkaline phosphatase (ALP), and osteopontin (OPN). Scanning electron microscopy (SEM) was used to observe the morphology of MSCs. The CPM value since 6 hours after
ISSN:0376-2491