Construction method of human adipose derived stem cell bank
A mesenchymal stem cell and construction method technology, applied in the field of mesenchymal stem cell preparation, can solve the problems of low cell purity, complicated operation process, tedious removal of red blood cells, etc., and achieve simplified process flow, simple steps, and easier control of process stability Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] Example 1 Isolation of adipose-derived mesenchymal stem cells
[0034] (1) Sign an informed consent form with the donor, collect 30mL female (25 years old) abdominal adipose tissue, and collect 10mL donor blood samples at the same time and test the donor's blood type, HLA-ABC / DR matching, infectious diseases (two and a half hepatitis B, Hepatitis C, cytomegalovirus, Epstein-Barr virus, syphilis, HIV), ensure that its various indicators are normal, and then cut the donor’s fat tissue into 1-5mm 3 Size and divide them into 3 parts, respectively, put them in a 50mL centrifuge tube, add 30mL sterile saline, centrifuge at 20℃, 4000r / min for 15min, the purpose is to deoil adipose tissue and remove red blood cells in adipose tissue ;
[0035] (2) After centrifugation, remove the upper oil layer, and then transfer the adipose tissue in the middle layer to a new centrifuge tube, and wash 1-2 times with normal saline;
[0036] (3) Collect the adipose tissue mass in step (2), weigh 2g a...
Embodiment 2
[0038] Example 2 Recovery, subculture and cryopreservation of adipose tissue
[0039] (1) Resuscitate the adipose tissue frozen for 2 months, 6 months, and 12 months in a 37℃ water bath;
[0040] (2) Take out the adipose tissue and add it to a 50mL centrifuge tube, add 30mL of sterile physiological saline, and centrifuge at 4°C and 1200r / min for 3min;
[0041] (3) Collect the adipose tissue mass in step (2), weigh 2g and inoculate it in a T175 culture flask (Corning), add 12mL complete medium, and then place it at 37°C, 5% CO 2 Cultivate in a humid incubator, and change the medium every 7 days; see the growth of P0 generation cells after resuscitation and culture of adipose tissue frozen for 2 months, 6 months, and 12 months Figure 1-2 , 1-3, 1-4;
[0042] (4) When the cell fusion degree is 70%, trypLE TM Select (Gibco) digested cells, centrifuged after digestion, centrifuged at 1200r / min for 3min, and collected the cells according to 1×10 4 Cells / cm 2 Inoculate it in a T175 culture...
Embodiment 3
[0045] Example 3 Identification of Biological Characteristics of Adipose Mesenchymal Stem Cells
[0046] 1. Identification of multi-directional differentiation potential
[0047] P3 generation adipose-derived mesenchymal stem cells were seeded in a six-well plate, and each well was seeded with 1×10 5 Add 2mL complete medium to each well, set 3 replicates for each sample, change the medium every two days, and add osteogenic, adipogenic, and chondrogenic induction medium (Cyagen ) 2mL each, with the addition of complete medium as a blank control, change the induction medium every 2-3 days, after 2-3 weeks of continuous cultivation, remove the induction medium and wash it with PBS once, add 2mL paraformaldehyde solution (4% , V / v) Fix for 30min, then remove the paraformaldehyde solution and wash twice with PBS, stain with staining solution, the staining time for osteogenic induction and chondrogenesis induction is 2-3min; the staining time for lipogenic induction is 30min, then remove...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com