Culturing method of human peripheral blood vessel endothelial ancestry cell
A technology of endothelial progenitor cells and human peripheral blood, which is applied in the field of culturing human peripheral blood vascular endothelial progenitor cells, can solve the problems of poor repeatability, MNC loss, and high experimental conditions
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[0029] 1. Isolation of MNC from human peripheral blood: Take 10-15ml of human femoral artery anticoagulant blood, dilute it with D-Hanks balanced salt solution 1:1, spread it on the Ficoll separation medium along the tube wall, and centrifuge at 2000rpm×30min density gradient to remove white The cloud layer was sucked out, and then washed twice with D-Hanks balanced salt solution 1000rpm×10min, and finally the cells were resuspended in culture medium and counted with trypan blue.
[0030] 2. Cultivate MNC in vitro: the culture medium is M-199+20%FBS+heparin 100U / ml+0.1mg / ml penicillin+0.1mg / ml streptomycin; the growth factor is bovine pituitary extract with a final concentration of 9 μg / ml Added to the culture medium; the cells were pressed by 10 5 / cm 2 Sow in culture flasks or slides coated with 2% gelatin at a gelatin density of 5 μl / cm 2 ; Cells were placed at 37°C, 5% CO 2 In an incubator, change the medium in half every 3-4 days.
[0031] 3. Identification of the cha...
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