Stem cell serum-free culture medium as well as preparation method and application thereof
A serum-free medium and stem cell culture technology, applied in the direction of cell culture active agents, biochemical equipment and methods, culture process, etc., can solve the problems of protein molecular cell internalization, contamination by pathogens, interference with therapeutic effect, etc., to achieve composition Simple, high safety, low cost effect
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[0069] In a second aspect, the present invention provides a method for preparing a stem cell serum-free medium, comprising the following steps:
[0070] Glucose, mannitol, glycine and polyethylene glycol are dissolved in basal medium, and then mixed with insulin solution and metformin solution to prepare stem cell serum-free medium;
[0071] Preferably, the basal medium contains antibiotics.
[0072] It should be noted that the order of mixing the basal medium with the insulin solution and the metformin solution is not specifically limited in the present invention, for example, the basal medium can be mixed with the insulin solution and then mixed with the metformin solution, or the basal medium can be mixed now It is mixed with metformin solution and then mixed with insulin solution, and insulin solution and metformin solution can also be mixed and then mixed with basal medium.
[0073] The preparation method of the stem cell serum-free medium provided by the invention is si...
Embodiment 1
[0085] A serum-free medium for culturing stem cells, including: DMEM containing 1w / v% penicillin-streptomycin double antibody and 100μM metformin, 10μg / mL insulin, 1w / v% mannitol, 1w / v% poly Ethylene glycol, 1w / v% glycine, 5w / v% glucose.
[0086] The preparation method is as follows:
[0087] Dissolve mannitol, glycine, and polyethylene glycol in DMEM medium containing 1% penicillin-streptomycin double antibody, filter through a 0.22 μm sterile filter; dissolve insulin with 10 mM hydrochloric acid to a concentration of 1 mg / mL concentration, use a 0.22 sterile filter to filter; use PBS to dissolve metformin to a concentration of 10mM, use a 0.22 sterile filter to filter; then add insulin solution and metformin solution to the culture medium according to the required final concentration middle.
Embodiment 2
[0089] A serum-free medium for culturing stem cells, including: DMEM containing 1w / v% penicillin-streptomycin double antibody and 100μM metformin, 100μg / mL insulin, 1w / v% mannitol, 1w / v% poly Ethylene glycol, 1w / v% glycine, 5w / v% glucose.
[0090] The preparation method is the same as in Example 1.
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