Application of umbilical cord Wharton jelly originated mesenchymal stem cells in heart failure cellular transplantation therapy
A technology of mesenchymal stem cells and heart failure, applied in the direction of medical raw materials derived from mammals, cardiovascular system diseases, microorganisms, etc., can solve the problems of reduced para-autocrine function and failure to achieve biological effects, so as to improve prognosis and solve The effect of high mortality
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[0017] Example 1 Preparation of UW-MSCs transplantation materials - application of fresh UW-MSCs
[0018] The fresh umbilical cord Wharton's jelly mesenchymal stem cells that have just been subcultured for 2-4 passages were digested with 0.05-0.25% trypsin for 1-5 minutes, serum neutralized, washed 3 times with balanced salt solution, and the centrifugal force of the centrifuge was controlled. Resuspend in 100-1000g with 0.9% sodium chloride injection containing 0-100 units heparin / ml.
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[0019] Example 2 Preparation of UW-MSCs transplantation materials - using cryopreserved UW-MSCs spares
[0020] Take out the cryopreserved passage 2-4 umbilical cord Wharton's jelly mesenchymal stem cells from the cryogenic container, quickly put them into a 35-38 °C incubator and a water bath, and dissolve within 2 minutes. Resuspend the cells in a complete medium solution. After 2-4 days of cell fusion, re-digest and wash the cells, and use the heparin sodium chloride injection with a concentration of "1000 units of heparin: 100 ml of 0.9% sodium chloride solution" to prepare a cell concentration of 1-2 × 10 6 / ml of cell suspension, usually packed in 10ml per vial.
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[0021] Example 3 Surgical method of transvenous transplantation of UW-MSCs
[0022] Will 2 x 10 7 The UW-MSCs suspension was diluted in 20 ml of heparinized saline (200 units of heparin + 20 ml of normal saline) by intravenous rapid injection.
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