Adaptive culture method of rotavirus P(2) G3 strain and P(8) G1 strain on KMB17 cells and immunogenicity
A rotavirus and culture method technology, applied in biochemical equipment and methods, inactivation/attenuation, instruments, etc., can solve the problems of unestablished immunogenicity and low infectivity titer of rotavirus, and achieve good results. The effect of immunogenicity
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[0030] Materials used in the following examples include:
[0031] Monkey rotavirus P[2]G3 strain (18th passage, multiplied on Vero cells),
[0032] Human rotavirus P[8]G1 strain (10th passage, propagated on Vero cells).
[0033] (1) Adaptive culture of rotavirus on KMB17 cells
[0034] Use MEM medium containing 10% newborn bovine serum to culture KMB17 cells in a spinner bottle. After the cells grow into a dense monolayer, inoculate P[2]G3 and P[8]G1 strains of virus at a MOI of 0.05, and observe the pathological changes. When the CPE reaches +++-++++, the virus liquid is harvested. In this way, the virus was serially passaged for 10 passages.
[0035] 20ug / ml of acetylated trypsin and 600ug / ml of CaCl can be used before virus inoculation 2 Activate in a water bath at 37°C for 60 minutes, inoculate the virus and adsorb at 37°C for 90 minutes, discard the unadsorbed virus liquid, and add the MEM maintenance solution with a final concentration of 0.5ug / ml acetylated trypsin ...
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