CN106957818A - A kind of method for efficiently promoting fat stem cell to breed and its kit - Google Patents

A kind of method for efficiently promoting fat stem cell to breed and its kit Download PDF

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CN106957818A
CN106957818A CN201710303383.3A CN201710303383A CN106957818A CN 106957818 A CN106957818 A CN 106957818A CN 201710303383 A CN201710303383 A CN 201710303383A CN 106957818 A CN106957818 A CN 106957818A
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stem cell
fat stem
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growth factor
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宗玺
王锦杰
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Taizhou Several Biological Technology Co Ltd
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Abstract

The invention provides a kind of method for efficiently promoting fat stem cell to breed, wherein, methods described is included by using the coated Tissue Culture Plate of gelatin or culture dish and the coated Tissue Culture Flask of gelatin, under the Combined cultures such as recombinant human epidermal growth factor, derivative growth factor of recombined human blood platelet, recombination human basic fibroblast growth factor, insulin, transferrins and hyclone, efficiently promote fat stem cell propagation growth from fat, cell adipose-derived 50mL can cultivate acquisition 10 in 15 days9Fat stem cell above, can meet a large amount of cell numbers of clinical treating disease and medical cosmetology, the pain brought without secondary liposuction and reduction liposuction.According to the above method, present invention also offers a kind of kit for efficiently promoting fat stem cell to breed, grown available for fat stem cell propagation is efficiently promoted.

Description

A kind of method for efficiently promoting fat stem cell to breed and its kit
Technical field
The present invention relates to it is a kind of efficiently promote fat stem cell breed method and by methods described obtain it is efficient The kit for promoting fat stem cell to breed.Especially, the present invention relates to use the coated Tissue Culture Plate of gelatin or culture dish With the coated Tissue Culture Flask of gelatin, in recombinant human epidermal growth factor, derivative growth factor of recombined human blood platelet, recombined human alkali Property the Combined culture such as fibroblast growth factor, insulin, transferrins and hyclone under, efficiently promote fat dry from fat Cell propagation growth.The fat stem cell that the present invention is obtained can be used for the necks such as medical cosmetology, including skin wrinkle, nti-freckle and chest enlarge Domain.
Background technology
Due to the fast development of biotechnology, medical cosmetology and cosmetics are applied to biotechnology and develop product, Particularly in recent years, by cell technology application beauty industry, and the field gradually approved as everybody.Trained such as from skin Fat stem cell obtained in foster fibroblast and fat etc., all carries out clinical research in medical cosmetology and answers With to direct injections such as wrinkle of skin, spot and chest enlarges so that these cells can differential growth in skin, skin is played Filling and repair function.Fat stem cell is a kind of adult stem cell of current study hotspot, and the ability of cell proliferation is relatively good, In vitro culture can keep stable growing multiplication activity, and with multinomial differentiation potential, also be applied in beauty therapeutic.But When usual fat stem cell cultivates propagation in vitro, the speed of growth is slow, reaches 108Above cell number need more than 20 days when Between, and be not met by needed for multiple beauty.Many second of beauty of beauty person may need to carry out liposuction again, but this pain Chu Feichang pains, common people are difficult to receive.Even with local anaesthesia, but pain is still difficult to stand later.
In summary, fat stem cell cultural method acquisition fat stem cell number conventional at present is limited, fat stem cell Propagation is slow-growing, and more than 30 days are needed by the generation of Secondary Culture 3, and obtained fat stem cell quantity is less than 108.And fat Stem cell passage amplification easily occurs breaking up and apoptosis no more than 5 generations, otherwise fat stem cell, cell propagation and the function of repairing Substantially also decline, the cell with cells and characteristic of stem is substantially reduced, it is impossible to ensure the activity of fat stem cell after beauty.The present invention Using the coated Tissue Culture Plate of gelatin or culture dish and the coated Tissue Culture Flask of gelatin, recombinant human epidermal growth factor, Derivative growth factor of recombined human blood platelet, recombination human basic fibroblast growth factor, insulin, transferrins and hyclone etc. Under Combined culture, promote fat stem cell high efficiently multiplying, substantial amounts of fat stem cell can be obtained, meet beauty person's repeatedly many treatments The carry out beauty of journey, the beautification functions such as optimal smoothing wrinkle, nti-freckle and chest enlarge will be produced to skin.
The content of the invention
In order to efficiently promote fat stem cell to breed, the fat stem cell for obtaining a large amount of high activities will be helpful to improve medical science The effect of beauty.The present invention is according to survival and growth conditions, the Tissue Culture Plate of gelatin bag or culture in fat stem cell body Ware and the coated Tissue Culture Flask of gelatin, in recombinant human epidermal growth factor, derivative growth factor of recombined human blood platelet, recombined human Under the Combined cultures such as Basic Fibroblast Growth Factor, insulin, transferrins and hyclone, fat stem cell is promoted efficiently to increase Grow, substantial amounts of active fat stem cell can be obtained.So, the fat stem cell of preparation repeatedly many courses for the treatment of can enter to practise medicine Beauty, reduction thus the liposuction again of fat stem cell deficiency needs are learned, and reduces the pain that liposuction is brought again.
Gelatin has the undifferentiated state for maintaining the human stem cell through Trypsin Induced.It is grown in the stem cell on gelatin Versatility mark is expressed, Multidirectional Differentiation Forming ability maintains normal karyotype simultaneously.We have found that in gelatin in early-stage Study On cultivated the human adipose-derived stem cell in 10 generations and detected, as a result show that these cells still express high-caliber CD90, CD73 And CD105.Meanwhile, compared with the human adipose-derived stem cell grown on matrigel and in normal blake bottle, the people's fat grown on gelatin Fat stem cell can form the alkaline phosphatase positive colony of similar size and quantity, thus with good stem cell properties.
Recombinant human epidermal growth factor, derivative growth factor of recombined human blood platelet, recombination human basic fibroblast growth factor, The cell factor such as insulin and transferrins in terms of the propagation of fat stem cell, migration, aggregation and differentiation to having promotion to make With.We have found that these cell factors can have in the result that streaming instrument is detected and synergistically promote fat stem cell by static State enter propagation state effect, while keep fat stem cell be in undifferentiated state, with Multidirectional Differentiation ability and self more New cells and characteristic of stem.
Fat stem cell has various biological function, can be divided into various kinds of cell, such as Gegenbaur's cell, cartilage cell, god Through cell, fibroblast and epidermal cell etc., thus fat stem cell can repair the fibroblast of necrosis in skin And epidermal cell, participate in the metabolism of skin;Cytokine profiles, such as VEGF can be secreted simultaneously (vascular endothelial growth factor, VEGF), Basic Fibroblast Growth Factor (basic fibroblast Growth factor, bFGF), EGF (epithelial growth factor, EGF), HGF (hepatocyte growth facror, HGF), insulin-like growth factor (insulin-like growth factors, ) and platelet derived growth factor (platelet derived growth factor, PDGF) and nerve growth factor IGF-1 (nerve growth factor, NGF) etc., can promote fibroblast and epidermal cell to activate and expand, produce collagen egg In vain, hyaluronic acid and elastin laminin etc., participate in the reparation of wrinkle of skin, scar, scar and spot etc., regeneration, filling, nti-freckle and The effect of anti-oxidant grade, and chest reach the effect of chest enlarge.
The height obtained the invention provides a kind of method for efficiently promoting fat stem cell to breed and by methods described Effect promotes the kit that fat stem cell is bred.Especially, the present invention relates to plate and Tissue Culture Flask is coated with using gelatin, in weight Group hEGF, derivative growth factor of recombined human blood platelet, recombination human basic fibroblast growth factor, insulin, turn Under the Combined culture such as ferritin and hyclone, efficiently promote fat stem cell propagation growth from fat.
The autologous fat that fat stem cell prepared by the present invention can be obtained from beauty person's thigh or belly liposuction, washing digestion After obtain karyocyte, after primary culture in vitro and Secondary Culture obtain significant quantities of fat stem cell, can be placed in 4 DEG C preserve fortune It is defeated, it is also possible to the frozen stock solution of 40% fat stem cell culture solution, 10% dimethyl sulfoxide (DMSO) and 50% hyclone composition, preserve In -196 DEG C of liquid nitrogen containers, in case being used after recovering from now on.
The coated Tissue Culture Plate of gelatin of the present invention, culture dish or Tissue Culture Flask, to use 1-20% (quality Volume ratio) gelatin 4 DEG C of refrigerator overnights after 4 DEG C of refrigerator overnights or 37 DEG C are incubated 1 hour, wrapped in cell culture container Quilt.Gelatin solution is absorbed after coating, the aeration-drying in Biohazard Safety Equipment or super-clean bench is stored in 4 DEG C of refrigerators standby after drying.
The present invention can cultivate acquisition 10 from 50mL fat in 15 days9Fat stem cell above.The present invention is prepared into The fat stem cell arrived through flow cytomery, height expression CD90+ be >=90%, CD73+ be >=90% and CD105+ be >= 90%, low expression CD34+ are that≤5%, HLA-DR+ is that≤5% and CD14+ is≤5%;;It is further preferred that autologous fat stem cell is high It is that 99.08%, CD105+ is 99.12% and CD73+ is 99.39% to express CD90+, and low expression CD34+ is 0.12%, HLA-DR + it is 0.51% and CD14+ is 0.24%.
The fat stem cell high expressing cell factor prepared by the present invention, i.e., the VEGF secreted in fat stem cell culture supernatant It is more than more than 500pg/mL, bFGF more than 500pg/mL, EGF more than 1500pg/mL, IGF-1 more than 10ng/mL and PDGF 1000pg/mL。
Present invention also offers a kind of kit for efficiently promoting fat stem cell to breed, it is characterised in that it is by as follows Composition is constituted:
1) 1000ml cell culture mediums;
2) 1 piece of coated Tissue Culture Plate of gelatin or culture dish;
3) 8 coated Tissue Culture Flasks of gelatin;
4) 5-50ng/mL recombinant human epidermal growth factors;
5) 5-50ng/mL derivative growth factor of recombined human blood platelet;
6) 5-50ng/m recombination human basic fibroblasts growth factor;
7) 10-100ng/mL insulin;
8) 10-100ng/mL transferrins;
9) 2-10% hyclones;
10) 100ml pancreatin;
11) operation instructions;
The coated Tissue Culture Plate of the culture medium of the reagent kit product, gelatin or culture dish and the coated cell culture of gelatin Bottle is stored under the conditions of 4 DEG C, and the shelf-life is 1 year;Cell factor, hyclone and pancreatin are maintained under the conditions of -80 DEG C, are guaranteed the quality Phase is 1 year.
It preferably with the addition of whole cell factors, i.e. 5-50ng/mL recombinant human epidermal growth factors, 5-50ng/mL weights Group vectors containing human platelet-derived growth, 5-50ng/m recombination human basic fibroblasts growth factor, 10-100ng/mL insulin, 10- 100ng/mL transferrins and 2-10% hyclones.
By the method for the present invention, preparation can be prepared into by cultivating obtained fat stem cell, for wrinkle of skin, scar Trace, scar and chest carry out injection beauty, and wrinkle of skin, scar, scar and spot etc. are produced and repairs, regenerate, filling, dispelling Spot and the effect of anti-oxidant grade, and chest reach the effect of chest enlarge.
Brief description of the drawings
Fig. 1 is represented as the human adipose-derived stem cell proliferation activity analysis prepared by embodiment 1.
Fig. 2 is represented as the cell streaming figure of the fat stem cell Phenotypic examination prepared by embodiment 1.
Fig. 3 is represented as the fat stem cell culture supernatant levels of cytokine secretion figure prepared by embodiment 1.
Embodiment
The height obtained the invention provides a kind of method for efficiently promoting fat stem cell to breed and by methods described Effect promotes the kit that fat stem cell is bred.Especially, the present invention relates to use the coated Tissue Culture Plate of gelatin or culture Ware and the coated Tissue Culture Flask of gelatin, in recombinant human epidermal growth factor, derivative growth factor of recombined human blood platelet, recombined human Under the Combined cultures such as Basic Fibroblast Growth Factor, insulin, transferrins and hyclone, efficiently fat is promoted from fat Stem cells hyperplasia grows, so as to be prepared into autologous fat stem cell preparation.
The fat stem cell obtains adipose tissue purification culture from thigh or belly liposuction and obtained.Specific implementation step It is rapid as follows:Adipose tissue 50mL is obtained by liposuction on belly or thigh, is rinsed repeatedly with physiological saline 5 times, fat is absorbed as far as possible Middle oil and haemocyte;
Using 1: 1 0.25% (mass volume ratio) pancreatin and 0.1% (mass volume ratio) type i collagen enzyme 20-50mL, Digest 60 minutes, vibrated 2 minutes with vortex oscillation instrument every 15 minutes in 37 DEG C of incubators;1500rpm centrifuges 10 points after digestion Clock, suction abandons after the grease of upper strata that to add physiological saline resuspended, is filtered with 100 μm of cell sieves;Cell suspension 1000rpm centrifuges 10 points Clock, cell precipitation with physiological saline it is resuspended washing 2 times after add cell culture fluid (recombinant human epidermal containing 5-50ng/mL grow because Son, 5-50ng/mL derivative growth factor of recombined human blood platelet, 5-50ng/m recombination human basic fibroblasts growth factor, 10- 100ng/mL insulin, 10-100ng/mL transferrins and 2-10% hyclones) it is resuspended, press 1- after tongue disk orchid dyeing counting 10×106Cell/ml is added in the coated Tissue Culture Plate of gelatin or culture dish and cultivated, in 37 DEG C, 5%CO2Trained in incubator Support 24-72 hours;
Culture is inhaled after 24-72 hours with 5ml pipettes abandons nutrient solution, adds cell culture fluid (recombined human containing 5-50ng/mL EGF, 5-50ng/mL derivative growth factor of recombined human blood platelet, the growth of 5-50ng/mL recombination human basic fibroblasts The factor, 10-100ng/mL insulin, 10-100ng/mL transferrins and 2-10% hyclones) carry out changing liquid, cell culture Plate or culture dish continue to place 37 DEG C, 5%CO2Continue to cultivate in incubator;
Digestion is carried out when fat stem cell growth fusion reaches more than 80% and expands bottle, and nutrient solution is absorbed, 1 × PBS is taken (pH value is 7.4) adds the pancreatin of 0.5ml 0.25% into blake bottle after washed once, digestion adds 200 μ l tires after 2-3 minutes Cow's serum terminates digestion, adds physiological saline, is blown and beaten, is drawn in 15ml centrifuge tubes, then washed with physiology salt with 5mL pipettes Wash once, be added in same 15mL centrifuge tubes, 1000 rpms of centrifugations collect fat stem cell in 10 minutes;Used after centrifugation 1mL fresh mediums are resuspended, count, and the fresh cell culture fluid (recombined humans containing 5-50ng/mL of 10mL are added with 5mL pipettes EGF, 5-50ng/mL derivative growth factor of recombined human blood platelet, 5-50ng/m recombination human basic fibroblasts growth because Son, 10-100ng/mL insulin, 10-100ng/mL transferrins and 2-10% hyclones), it is added to 1 bottle of collagen coated Continue in blake bottle in 37 DEG C, 5%CO2Cultivated in incubator, a fresh medium was changed every 2 days;Treat that fat stem cell is given birth to When long fusion reaches more than 80%, by above-mentioned through collected by trypsinisation fat stem cell, continuous passage 3 be commissioned to train it is foster, obtain 109With On fat stem cell, it is resuspended with 4ml physiological saline, tongue disk orchid dyeing counting, that is, obtain significant quantities of fat stem cell, place 4 DEG C Under the conditions of save backup.
The coated Tissue Culture Plate of gelatin of the present invention, culture dish or Tissue Culture Flask, to use 1-20% (quality Volume ratio) gelatin 4 DEG C of refrigerator overnights after 4 DEG C of refrigerator overnights or 37 DEG C are incubated 1 hour, wrapped in cell culture container Quilt.Gelatin solution is absorbed after coating, the aeration-drying in Biohazard Safety Equipment or super-clean bench is stored in 4 DEG C of refrigerators standby after drying.
Culture plate, culture dish and blake bottle are commercially available, and culture plate can be 24 orifice plates, 12 orifice plates and 6 holes Plate;Culture dish can be 35mm, 60mm and 90mm culture dish;Blake bottle can be 25cm2、75cm2、175cm2And 225cm2Training Support bottle;More preferably culture plate can be 6 orifice plates;Culture dish can be 60mm culture dish;Blake bottle can be 175cm2Culture Bottle;
Cell culture fluid of the present invention is commercially available, including DMEM high glucose mediums, α-MEM training Foster, EGM-2 culture mediums and DMEM/F12 (1: 1) culture medium etc., more preferred with α-MEM cultures and EGM-2 culture mediums.
Tongue is taken to expect 3 × 10 after blue dyeing counting6Fat stem cell, divides three groups, first group has been respectively added to 20 μ L The anti-human CD90 monoclonal antibodies of FITC mark mouse, the 20 μ L PE mark anti-human CD105 monoclonal antibodies of mouse and 20 μ L Percp mark mouse antihuman CD 34 lists It is anti-;Second group has been respectively added to the anti-human CD73 monoclonal antibodies of 20 μ L FITC mark mouse, the 20 μ L PE mark anti-human HLA-DR monoclonal antibodies of mouse The anti-human CD14 monoclonal antibodies of mouse are marked with 20 μ L Percp;3rd group is Isotype control, has been respectively added to 20 μ L FITC mark mouse IgG1,20 μ L PE mark mouse IgG1 and 20 μ L PerCP mark mouse IgG1;It is placed in 4 DEG C of refrigerators to dye 30 minutes, then uses 1mL 1 × phosphate buffer wash three times, finally with the cell after the 0.5mL resuspended washings of 1 × PBS, gained washing after it is thin Born of the same parents use FC500 flow cytomeries;Fat stem cell height expression CD90+ is that >=90%, CD105+ is that >=90% and CD73+ is >=90%, low expression CD34+ are that≤5%, HLA-DR+ is that≤5% and CD14+ is≤5%.
The fat stem cell prepared can be in 40% fat stem cell culture solution, 10% dimethyl sulfoxide (DMSO) and 50% tire ox The frozen stock solution of serum composition, is stored in -196 DEG C of liquid nitrogen containers, in case being used after recovering from now on.After fat stem cell recovery, still Height expresses CD90, CD73 and CD105, low expression CD34, HLA-DR and CD14, with fat stem cell phenotypic characteristic.
The fat stem cell high expressing cell factor prepared by the present invention, fat stem cell culture supernatant is inhaled by enzyme linked immunological Attached to determine (enzyme linked immunosorbent assay, ELISA) detection secrete cytokines concentration, VEGF is more than 500pg/mL, bFGF are more than 500pg/mL, EGF and are more than 1500pg/mL, IGF-1 more than 10ng/mL and PDGF more than 1000pg/ mL。
Present invention also offers a kind of kit for efficiently promoting fat stem cell to breed, it is characterised in that it is by as follows Composition is constituted:
1) 1000ml cell culture mediums;
2) 1 piece of coated Tissue Culture Plate of gelatin or culture dish;
3) 8 coated Tissue Culture Flasks of gelatin;
4) 5-50ng/mL recombinant human epidermal growth factors;
5) 5-50ng/mL derivative growth factor of recombined human blood platelet;
6) 5-50ng/m recombination human basic fibroblasts growth factor;
7) 10-100ng/mL insulin;
8) 10-100ng/mL transferrins;
9) 2-10% hyclones;
10) 100ml pancreatin;
11) operation instructions;
The coated Tissue Culture Plate of the culture medium of the reagent kit product, gelatin or culture dish and the coated cell culture of gelatin Bottle is stored under the conditions of 4 DEG C, and the shelf-life is 1 year;Cell factor, hyclone and pancreatin are maintained under the conditions of -80 DEG C, are guaranteed the quality Phase is 1 year.
It preferably with the addition of whole cell factors, i.e. 5-50ng/mL recombinant human epidermal growth factors, 5-50ng/mL weights Group vectors containing human platelet-derived growth, 5-50ng/m recombination human basic fibroblasts growth factor, 10-100ng/mL insulin, 10- 100ng/mL transferrins and 2-10% hyclones.
Preparation can be prepared into the invention provides fat stem cell, is entered for wrinkle of skin, scar, scar and chest Row injection beauty, according to the wrinkle depth and scar and scar size, the fat stem cell number of injection is different, what full face was used Fat stem cell number is generally 5-50 × 106, 1 course for the treatment of is 4 times, is spaced 1 week, can reach more preferably cosmetic result.According to chest Size, the fat stem cell number of injection also different chest, the fat stem cell number that chest enlarge is used is generally each breast 100 ×106More than, 1 course for the treatment of is 2 times, is spaced 2 weeks, can reach more preferable chest enlarge effect.
Hereinafter, the specific embodiment of the present invention is illustrated, but the technical scope of the present invention is not limited to these examples.
The preparation of the human adipose-derived stem cell of embodiment 1
Beauty volunteer obtains adipose tissue 50mL (signing informed consent form with it) from liposuction on belly or thigh, uses 50mL physiological saline is rinsed 5 times repeatedly, and oil and haemocyte in fat are absorbed as far as possible.Use 1: 1 0.25% (mass volume ratio) Pancreatin (Beijing Suo Laibao companies) and 0.1% (mass volume ratio) type i collagen enzyme (Sigma Co., USA) 50mL, in 37 DEG C of trainings Support in case and digest 60 minutes, vibrated 2 minutes with vortex oscillation instrument every 15 minutes;1500rpm is centrifuged 10 minutes after digestion, and suction is abandoned Physiological saline is added after the grease of upper strata resuspended, filtered with 100 μm of cell sieves (U.S. company BD);Cell suspension 1000rpm is centrifuged 10 minutes, cell precipitation added EGM-2 culture mediums (Lonza companies of the U.S.) after being washed 2 times with physiological saline is resuspended and (contains 10ng/ ML EGF, R&D companies of the U.S.;5ng/mL PDGF, R&D companies of the U.S.;10ng/mL bFGF, R&D companies of the U.S.;10/mL pancreas islet Element, Sigma Co., USA;5ng/mL transferrins, R&D companies of the U.S.;With 5% hyclone, Life companies of the U.S.) it is resuspended, 1-10 × 10 are pressed after tongue disk orchid dyeing counting6Cell/ml is added in the coated Tissue Culture Plate of gelatin or culture dish and cultivated, in 37 DEG C, 5%CO2Cultivated 24-72 hours in incubator;
Culture is inhaled after 24-72 hours with 5ml pipettes abandons nutrient solution, addition cell culture fluid (EGF containing 10ng/mL, 5ng/mL PDGF, 10ng/mL bFGF, 10/mL insulin, 5ng/mL transferrins and 5% hyclone) carry out changing liquid, carefully Born of the same parents' culture plate or culture dish continue to place 37 DEG C, 5%CO2Continue to cultivate in incubator;
Digestion is carried out when fat stem cell growth fusion reaches more than 80% and expands bottle, and suction abandons nutrient solution, takes 1 × PBS (pH It is worth to add the pancreatin of 0.5ml 0.25% after 7.4) washed once into blake bottle, digestion adds 200 μ l tire ox bloods after 2-3 minutes It is clear to terminate digestion, physiological saline is added, is blown and beaten, is drawn in 15ml centrifuge tubes with 5mL pipettes, then with brine one It is secondary, it is added in same 15mL centrifuge tubes, 1000 rpms of centrifugations collect fat stem cell in 10 minutes;1mL is used after centrifugation Fresh medium is resuspended, counts, and fresh cell culture fluid (EGF containing 10ng/mL, the 5ng/mL of 10mL is added with 5mL pipettes PDGF, 10ng/mL bFGF, 10/mL insulin, 5ng/mL transferrins and 5% hyclone), it is added to 1 bottle of collagen coating Blake bottle in continue in 37 DEG C, 5%CO2Cultivated in incubator, a fresh medium was changed every 2 days;Treat fat stem cell Growth fusion is when reaching more than 80%, by above-mentioned through collected by trypsinisation fat stem cell, and continuous passage 3 is commissioned to train foster, obtains 109 Fat stem cell above, tongue disk orchid dyeing counting resuspended with 4ml physiological saline, that is, obtain significant quantities of fat stem cell, place 4 Saved backup under the conditions of DEG C.
The gelatin of embodiment 2 is coated with the preparation of plate and Tissue Culture Flask
5g gelatin is weighed, is dissolved with 1 × PBS of 100mL (pH=7.4) in 37 DEG C of water-baths, and is filtered with 0.45 μm of filter It is degerming, that is, it is configured to 5% gelatin solution.6 orifice plates add 500 μ L gelatin solutions, 90mm per hole and add 2mL gelatin solutions and 175cm2Training Support bottle and add 4mL gelatin solutions, 4 DEG C of refrigerator overnights after 4 DEG C of refrigerator overnights or 37 DEG C are incubated 1 hour, in cell culture container It is coated with.Gelatin solution is absorbed after coating, the aeration-drying in Biohazard Safety Equipment or super-clean bench, good seal is stored in 4 after drying DEG C refrigerator is standby.
The human adipose-derived stem cell proliferation activity of embodiment 3 is analyzed
The fat stem cell prepared in Example 1 and the fat stem cell prepared by comparative example carry out proliferation activity Analysis.The fat stem cell body that comparative example is delivered according in November, 2016 such as Strassburg S on cellular biochemistry magazine Outer support lymphatic vessel generation parameter article carry out culture obtain fat stem cell (Strassburg S, Torio-Padron N, Finkenzeller G, Frankenschmidt A, Stark GB.Adipose-Derived Stem Cells Support Lymphangiogenic Parameters In Vitro.J Cell Biochem.2016Nov;117(11):2620-9.)
Using CCK-8 (the green skies company in Shanghai) kit detect, according to operation instructions respectively the 1st day, the 2nd day, 3rd day, the 4th day and the 5th day detection cell-proliferation activity.From Fig. 1 it is recognised that the fat stem cell for preparing of the present invention with it is right Ratio is prepared and compared, and cell proliferation rate faster, between the two and with significant difference (* * P=0.012), shows the present invention The fat stem cell of preparation has higher proliferation activity.
The human adipose-derived stem cell flow cytometer detection of embodiment 4
3 × 10 prepared in Example 16Fat stem cell, divides three groups, first group has been respectively added to 20 μ L FITC Mark the anti-human CD90 monoclonal antibodies of mouse, the 20 μ L PE mark anti-human CD105 monoclonal antibodies of mouse and 20 μ L Percp mark mouse antihuman CD 34 monoclonal antibodies; Second group has been respectively added to the anti-human CD73 monoclonal antibodies of 20 μ L FITC mark mouse, the 20 μ L PE mark anti-human HLA-DR monoclonal antibodies of mouse and 20 μ L Percp mark the anti-human CD14 monoclonal antibodies of mouse;3rd group is Isotype control, be respectively added to 20 μ L FITC marks mouse IgG1, 20 μ L PE mark mouse IgG1 and 20 μ L PerCP mark mouse IgG1;Be placed in 4 DEG C of refrigerators and dye 30 minutes, then with the 1 of 1mL × PBS (pH value is 7.4) is washed 3 times, finally with the cell after the 0.5mL resuspended washings of 1 × PBS, and the cell after gained washing is used FC500 flow cytomeries (Beckman Coulter Inc. of the U.S.).Result shows the human adipose-derived stem cell height expression in Fig. 2 CD90+ is that 99.08%, CD105+ is 99.12% and CD73+ is 99.39%, and low expression CD34+ is that 0.12%, HLA-DR+ is 0.51% and CD14+ is 0.24%, shows to meet fat stem cell phenotype marker.
The human adipose-derived stem cell cytokine secretion of embodiment 5 is detected
Human adipose-derived stem cell comparative example into the culture supernatant and embodiment 3 in the 5th generation is cultivated in extraction embodiment 1 to prepare Fat stem cell (is purchased from U.S. to the culture supernatant in the 5th generation using VEGF, bFGF, EGF, IGF-1 and PDGF ELISA kit Ebioscience companies of state) detected, according to ELISA operation instructions, take 50 μ l culture supernatants to be added in ELISA Plate Row detection, by ELIASA in 450nm wavelength measurements, 620nm wavelength references carry out detection absorbance (OD values).Pass through standard items Standard curve is drawn out, and detects the content of cell factor in each supernatant.
As shown in result in Fig. 3, fat stem cell culture supernatant cytokine concentrations are above comparative example, two in the present invention Between person have significant difference, wherein VEGF be 672.5pg/mL, bFGF be 1767.8pg/mL, EGF be 780.3pg/mL, IGF-1 is 10045.6pg/mL and PDGF is 1324.1pg/mL, shows that the fat stem cell for preparing of the present invention has higher thin Intracellular cytokine secretion capacity.
Embodiment 6 efficiently promotes the preparation of fat stem cell proliferation kit
According to embodiment 1-4, the product is mainly made up of following composition:
1) 1000ml cell culture mediums, are EGM-2 culture mediums;
2) 1 piece of coated Tissue Culture Plate of gelatin or culture dish;
3) 8 coated Tissue Culture Flasks of gelatin;
4) 1ng/mL recombinant human epidermal growth factors;
5) 5ng/mL derivative growth factor of recombined human blood platelet;
6) 10ng/m recombination human basic fibroblasts growth factor;
7) 10ng/mL insulin;
8) 5ng/mL transferrins;
9) 5% hyclone;
10) 100ml pancreatin;
11) operation instructions;
The reagent kit product culture medium is stored under the conditions of 4 DEG C;The coated Tissue Culture Plate of gelatin or culture dish and gelatin Coated Tissue Culture Flask production method is prepared according to the method described above, is stored under the conditions of 4 DEG C, and the shelf-life is 1 year;Cell because Son, hyclone and pancreatin are maintained under the conditions of -80 DEG C, and the shelf-life is 1 year.

Claims (10)

1. a kind of method for efficiently promoting fat stem cell to breed, it is characterised in that methods described is included by using gelatin bag The coated Tissue Culture Flask of Tissue Culture Plate or culture dish and gelatin of quilt is small in recombinant human epidermal growth factor, recombinant human Plate derivative growth factor, recombination human basic fibroblast growth factor, insulin, the Combined culture of transferrins and hyclone Under, efficiently promote fat stem cell propagation growth from fat;
Wherein, the fat stem cell comes from 50mL fat, and acquisition 10 can be cultivated in 15 days9Fat stem cell above, fat Fat stem cell is through flow cytomery, and height expression CD90+ is that >=90%, CD73+ is that >=90% and CD105+ is >=90%, low It is that≤5%, HLA-DR+ is that≤5% and CD14+ is≤5% to express CD34+;
Fat stem cell culture solution that the fat stem cell prepared can be 40% in percent by volume, percent by volume are 10% dimethyl sulfoxide (DMSO) and percent by volume is stored in -196 DEG C of liquid nitrogen containers in the frozen stock solution for 50% hyclone composition In;It is preferred that after fat stem cell recovery, still high expression CD90, CD73 and CD105, low expression CD34, HLA-DR and CD14.
2. according to the method described in claim 1, it is characterised in that the coated Tissue Culture Plate of gelatin, culture dish or thin Born of the same parents' blake bottle, be use quality volume ratio be 1-20% gelatin after 4 DEG C of refrigerator overnights or 37 DEG C are incubated 1 hour 4 DEG C of refrigerators Overnight, it is coated with cell culture container;Gelatin solution is absorbed after coating, is divulged information in Biohazard Safety Equipment or super-clean bench dry It is dry, it is stored in 4 DEG C of refrigerators after drying standby.
3. according to the method described in claim 1, it is characterised in that the cell factor concentration recombinates for 1-200ng/mL HEGF, 1-200ng/mL derivative growth factor of recombined human blood platelet, the life of 1-200ng/m recombination human basic fibroblasts The long factor, 1-500ng/mL insulin, 1-500ng/mL transferrins and/or 1-20% hyclones.
4. method according to claim 3, it is characterised in that the cell factor concentration, it is therefore preferable to 5-50ng/ ML recombinant human epidermal growth factors, 5-50ng/mL derivative growth factor of recombined human blood platelet, 5-50ng/m recombination human basics are into fibre Tie up growth factor, 10-100ng/mL insulin, 10-100ng/mL transferrins and/or 2-10% hyclones.
5. the method according to claim any one of 1-4, it is characterised in that adipose tissue 50mL, with physiological saline repeatedly Rinse 5 times, oil and haemocyte in fat are absorbed as far as possible;
The type i collagen enzyme 20-50mL that the pancreatin and mass volume ratio for the use of 1: 1 mass volume ratio being 0.25% are 0.1%, Digest 60 minutes, vibrated 2 minutes with vortex oscillation instrument every 15 minutes in 37 DEG C of incubators;1500rpm centrifuges 10 points after digestion Clock, suction abandons after the grease of upper strata that to add physiological saline resuspended, is filtered with 100 μm of cell sieves;Cell suspension 1000rpm centrifuges 10 points Clock, cell precipitation with physiological saline it is resuspended washing 2 times after add cell culture fluid it is resuspended, tongue disk orchid dyeing counting after by 1-10 × 106Cell/ml is added in the coated Tissue Culture Plate of gelatin or culture dish and cultivated, in 37 DEG C, 5%CO2Cultivated in incubator 24-72 hours;
Culture is inhaled after 24-72 hour with 5ml pipettes abandons nutrient solution, adds cell culture fluid progress and changes liquid, Tissue Culture Plate or Culture dish continues to place 37 DEG C, 5%CO2Continue to cultivate in incubator;
Digestion is carried out when fat stem cell growth fusion reaches more than 80% and expands bottle, nutrient solution is absorbed, and it is 7.4 to take pH value 1 × PBS adds the pancreatin of 0.5ml 0.25% into blake bottle after washed once, digestion adds 200 μ l hyclones after 2-3 minutes Digestion is terminated, physiological saline is added, is blown and beaten, is drawn in 15ml centrifuge tubes with 5mL pipettes, then with brine one It is secondary, it is added in same 15mL centrifuge tubes, 1000 rpms of centrifugations collect fat stem cell in 10 minutes;1mL is used after centrifugation Fresh medium is resuspended, counts, and adds the fresh cell culture fluids of 10mL with 5mL pipettes, is added to the coated training of 1 bottle of collagen Support and continue in bottle in 37 DEG C, 5%CO2Cultivated in incubator, a fresh medium was changed every 2 days;Treat that fat stem cell grows Fusion is when reaching more than 80%, by above-mentioned through collected by trypsinisation fat stem cell, and continuous passage 3 is commissioned to train foster, obtains 109More than Fat stem cell, it is resuspended with 4ml physiological saline, tongue disk orchid dyeing counting, that is, obtain significant quantities of fat stem cell, place 4 DEG C of bars Saved backup under part;
The jelly that partial fat stem cell constitutes in 40% fat stem cell culture solution, 10% dimethyl sulfoxide (DMSO) and 50% hyclone Liquid storage is stored in -196 DEG C of liquid nitrogen containers, in case being used after recovering from now on;
Tongue is taken to expect 3 × 10 after blue dyeing counting6Fat stem cell, divides three groups, and first group has been respectively added to 20 μ L FITC marks Remember the anti-human CD90 monoclonal antibodies of mouse, the 20 μ L PE mark anti-human CD105 monoclonal antibodies of mouse and 20 μ L Percp mark mouse antihuman CD 34 monoclonal antibodies;The Two groups have been respectively added to the anti-human CD73 monoclonal antibodies of 20 μ L FITC mark mouse, the 20 μ L PE mark anti-human HLA-DR monoclonal antibodies of mouse and 20 μ L Percp marks the anti-human CD14 monoclonal antibodies of mouse;3rd group is Isotype control, has been respectively added to 20 μ L FITC mark mouse IgG1,20 μ L PE marks mouse IgG1 and 20 μ L PerCP mark mouse IgG1;It is placed in 4 DEG C of refrigerators to dye 30 minutes, then with 1mL 1 × phosphate Buffer solution is washed three times, finally with the cell after the 0.5mL resuspended washings of 1 × PBS, and the cell after gained washing is flowed with FC500 Formula cell instrument is detected;Fat stem cell height expression CD90+ >=90%, CD105+ >=90% and CD73+ >=90%, low expression CD34+≤5%, HLA-DR+≤5% and CD14+≤5%.
6. method according to claim 5, it is characterised in that the cell culture fluid recombinant human epidermal containing 5-50ng/mL Growth factor, 5-50ng/mL derivative growth factor of recombined human blood platelet, 5-50ng/m recombination human basic fibroblasts growth factor, 10-100ng/mL insulin, 10-100ng/mL transferrins and 2-10% hyclones.
7. the method according to claim any one of 5-6, it is characterised in that the human adipose-derived stem cell height expression CD90+ For 99.08%, CD105+ be 99.12% and CD73+ is 99.39%, and low expression CD34+ is that 0.12%, HLA-DR+ is 0.51% It is 0.24% with CD14+.
8. the method according to claim any one of 1-7, it is characterised in that the fat stem cell high expressing cell because The VEGF secreted in son, i.e. fat stem cell culture supernatant is more than more than 500pg/mL, bFGF more than 500pg/mL, EGF 1500pg/mL, IGF-1 are more than 10ng/mL and PDGF and are more than 1000pg/mL.
9. the method according to any one of claim 8, it is characterised in that the VEGF is that 672.5pg/mL, bFGF are 1767.8pg/mL, EGF are that 780.3pg/mL, IGF-1 are 10045.6pg/mL and PDGF is 1324.1pg/mL.
10. a kind of kit for efficiently promoting fat stem cell to breed prepared according to any one of claim 1-9 methods described, Characterized in that, it is made up of following composition:
1) 1000ml cell culture mediums;
2) 1 piece of coated Tissue Culture Plate of gelatin or culture dish;
3) 8 coated Tissue Culture Flasks of gelatin;
4) 5-50ng/mL recombinant human epidermal growth factors;
5) 5-50ng/mL derivative growth factor of recombined human blood platelet;
6) 5-50ng/m recombination human basic fibroblasts growth factor;
7) 10-100ng/mL insulin;
8) 10-100ng/mL transferrins;
9) 2-10% hyclones;
10) 100ml pancreatin;
11) operation instructions;
It is preferred that, the coated Tissue Culture Plate of the culture medium of the reagent kit product, gelatin or culture dish and the coated cell training of gelatin Foster bottle is stored under the conditions of 4 DEG C, and the shelf-life is 1 year;Cell factor, hyclone and pancreatin are maintained under the conditions of -80 DEG C, are protected The matter phase is 1 year.
CN201710303383.3A 2017-05-03 2017-05-03 A kind of method for efficiently promoting fat stem cell to breed and its kit Pending CN106957818A (en)

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