Externally used gel preparation containing human umbilical cord mesenchymal stem cell extract as well as preparation method and application of externally used gel preparation
A technology of mesenchymal stem cells and gel preparations, which is applied in the field of external gel preparations containing human umbilical cord mesenchymal stem cell extracts and its preparation, can solve the problems of harsh survival conditions for active cells, easy-to-death living cells, discounts, etc. Achieve the effects of shortening healing time, eliminating inflammation, and promoting ulcer healing
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[0037] The preparation method of the above-mentioned external gel preparation containing human umbilical cord mesenchymal stem cell extract comprises the following steps:
[0038] (1) Preparation of human umbilical cord mesenchymal stem cell extract: select cells from the cell bank for recovery, use phenol red-free DMEM / DF12 and 10% fetal calf serum as a complete medium, and T75 cell culture bottle at 37 °C, 5% CO 2 Carry out culture, when the growth degree of the cells reaches 70%-80%, wash the cells twice with normal saline, perform starvation culture with compound electrolyte injection for 12-24 hours, and collect the cells for culture after the growth degree of the cells reaches 90%-95% Centrifuge the supernatant at 3000-4500g for 5-8min, filter with a 0.22um filter membrane, add human serum albumin according to the mass volume ratio of 2%-4%, mix well and set aside;
[0039] (2) Gel solution preparation: according to the ratio, the medicinal polymer stabilizer, moisturiz...
Embodiment 1
[0044] (1) Human umbilical cord mesenchymal stem cell extract: select cells from the cell bank for resuscitation, use phenol red-free DMEM / DF12 and 10% fetal bovine serum as a complete medium, and place a T75 cell culture bottle at 37°C , 5% CO 2 Culture until the cell growth reaches 70%-80% (see figure 1 ), washed the cells twice with normal saline, starved and cultured with compound electrolyte injection for 12 hours, and after the cell growth reached 90%--95%, collected the cell culture supernatant and centrifuged at 3000g for 8min, filtered through a 0.22um filter membrane Filter, add human serum albumin according to the mass volume ratio of 2%, mix well and set aside;
[0045] (2) Preparation of gel solution: according to the proportion, dissolve 2.5g of medicinal polymer stabilizer sodium alginate, 5ml of sterile moisturizing agent propylene glycol, and 5ml of transdermal absorption promoter dimethyl sulfoxide into 90ml of compound electrolyte solution , prepared into ...
Embodiment 2
[0048] (1) Human umbilical cord mesenchymal stem cell extract: select cells from the cell bank for resuscitation, use phenol red-free DMEM / DF12 and 10% fetal bovine serum as a complete medium, and place a T75 cell culture bottle at 37°C , 5% CO 2 Carry out culture, when the growth degree of the cells reaches 70%-80%, wash the cells twice with normal saline, perform starvation culture with compound electrolyte injection for 12 hours, when the growth degree of the cells reaches 90%-95%, collect the cells on the culture medium Centrifuge at 4000g for 6 minutes, filter with a 0.22um filter membrane, add human serum albumin according to the mass volume ratio of 3%, mix well and set aside;
[0049](2) Preparation of gel solution: According to the ratio, 5g of medicinal polymer stabilizer sodium hyaluronate, 7.5ml of sterile moisturizing agent propylene glycol, and 7.5ml of transdermal absorption accelerator dimethyl sulfoxide were dissolved in 85ml of compound In the electrolyte so...
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