Cultivation method for activating human memory B cells into plasma cells in vitro
A technology for plasmablasts and culture methods, which is applied in the field of in vitro activation of human memory B cell plasmablasts, can solve the problems of low activation efficiency, low activation quality, and high cost, and achieve high activation efficiency and activation quality. The effect of small quantity and low cost
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[0019] 1. Acquisition of memory B cells: collect whole blood from volunteers in a sterile environment, separate human peripheral blood mononuclear cells from fresh anticoagulated whole blood with lymphocyte separation medium, and then use human memory B cells magnetically The bead sorting kit separates memory B cells from peripheral blood mononuclear cells. Table 1 shows the number of human peripheral blood mononuclear cells; Table 2 shows the number of B lymphocytes; Table 3 shows the number of memory B lymphocytes.
[0020] 2. In vitro activation culture of memory B cells: the sorted memory B cells were inoculated into 96-well cell culture plates at the density of 0 cells / well, 5 cells / well, and 20 cells / well, and IMDM with 10% FBS was used as the basis Culture medium containing 30ng / mL of IL-2 and 60ng / mL of IL-21 and 5000cGy of 60 3T3-CD40L cells inactivated by Co irradiation were used as feeder cells at 10,000 / well at 37°C, 5% CO 2 Cultured under conditions for 13 days, ...
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