High-molecular extract in umbilical cord mesenchymal stem cells, application and detection method
A technology of stem cells and macromolecules, applied in the field of cosmetics, can solve the problems of high production cost and low concentration, and achieve the effects of enhancing repair ability, increasing yield and content of active substances
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Embodiment 1
[0040] Embodiment 1: A polymer extract from umbilical cord mesenchymal stem cells, which is extracted by the following steps:
[0041] (1) Umbilical cord mesenchymal stem cells were isolated from umbilical cord tissue blocks, and umbilical cord specimens that met the collection standards were collected, and cell separation was performed within 48 hours. Discard the umbilical cord preservation solution, rinse with PBS 3 times, and move the umbilical cord to a Ф10cm petri dish, and cut the umbilical cord into small sections with good transparency, no damage, and no edema area, and cut each section into 4*4cm. Cut the umbilical cord longitudinally with tissue scissors, remove the umbilical vein and umbilical artery, and rinse with PBS four times. Use special scissors for umbilical cord tissue to cut the remaining tissue of the umbilical cord, that is, Wharton's jelly, into 1mm 3 The tissue pieces were inoculated into a new Ф10cm culture dish, half of the serum-free complete medi...
Embodiment 2
[0045] Embodiment 2: The difference from Embodiment 1 lies in step (3):
[0046] (3) Cultivate skin stem cells, and use 50mJ / cm in the logarithmic phase 2 Ultraviolet irradiated cells for 7h;
Embodiment 3
[0047] Embodiment 3: The difference from Embodiment 1 lies in step (3):
[0048] (3) Culture skin stem cells, and use 60mJ / cm in the logarithmic phase 2 Ultraviolet irradiated cells for 7h;
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