CN110179827A - The application of Odontogenic cysts mescenchymal stem cell - Google Patents

The application of Odontogenic cysts mescenchymal stem cell Download PDF

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CN110179827A
CN110179827A CN201910570573.0A CN201910570573A CN110179827A CN 110179827 A CN110179827 A CN 110179827A CN 201910570573 A CN201910570573 A CN 201910570573A CN 110179827 A CN110179827 A CN 110179827A
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stem cell
mescenchymal stem
dental pulp
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杨月峰
吴祖泽
朱晓娜
夏侠
王�华
孟虹芳
刘洪英
刘冬梅
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BEIJING SANYOU LIHEZE BIOTECHNOLOGY Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/12Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
    • A61K35/28Bone marrow; Haematopoietic stem cells; Mesenchymal stem cells of any origin, e.g. adipose-derived stem cells
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/10Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/14Vasoprotectives; Antihaemorrhoidals; Drugs for varicose therapy; Capillary stabilisers

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Abstract

The present invention provides a kind of application of Odontogenic cysts mescenchymal stem cell, specially application of the Odontogenic cysts mescenchymal stem cell in preparation treatment ischemic disease drug.Dental pulp mescenchymal stem cell has stronger immunosuppressive activity and anti-inflammatory activity, at the same can promote ishemic part angiogenesis and blood vessel bypass to establish effect most strong.And dental pulp mescenchymal stem cell can be by inhibiting the foundation of ischemic local inflammation reaction, the survival and the offshoot circulation that promote the mechanism such as blood vessel and regeneration to promote mescenchymal stem cell, and then achievees the purpose that damaged tissue repair.

Description

The application of Odontogenic cysts mescenchymal stem cell
Technical field
The present invention relates to medicinal application fields, in particular to a kind of application of Odontogenic cysts mescenchymal stem cell.
Background technique
A kind of most commonly seen blood vessel of lower limb peripheral arterial disease (Peripheral Arterial Diseases, PAD) One of surgical disease, disease incidence are high.According to statistics, PAD threatens the quality of life and life expectancy of global about 200,000,000 people.Periphery Arteriopathy includes Buerger's disease, arteriosclerosis obliterans and diabetes etc..In diabetes, hypertension, high blood Under the effect of the risk factors such as rouge disease, smoking, chronic atherosclerosis, about 1% -2% peripheral arterial patient can be proceeded to Terminal stage, i.e. critical limb ischemia (Critical limb ischemia, CLI), pain (limping), tranquillization when causing to walk Bitterly, ulcer even results in tissue necrosis.Reconstructing blood vessel, including classical bypass art and interventional therapy are current CLI treatments Main means.However, some patientss are not suitable for hand because in poor condition of health, the inflow undesirable elements such as road and efferent tract difference influence Art treatment.Therefore, it researches and develops significantly more efficient therapeutic agent or treatment means seems very necessary and urgently.
A large number of studies show that locally injecting or use genophore import growth factor, such as fibroblast growth factor (Fibroblast Growth Factor, FGF), vascular endothelial growth factor (Vascular Endothelial Growth Factor, VEGF) and hepatocyte growth factor (Hepatocyte Growth Factor, HGF) etc., it can be in animal model Effectively facilitate angiogenesis.However, a large amount of clinical researches show that growth factor for treating can not continue to mitigate patient's rest pain and control More ulcer.Stem cell has self-renewing and directed differentiation potential, has proven to the reparation that can promote Various Tissues damage, such as radiates Property injury of lungs, chronic liver injury, ulcerative colitis etc..But it is not on the books on treatment ischemic disease.
Summary of the invention
The present invention provides a kind of Odontogenic cysts mescenchymal stem cells to treat ischemic disease medicinal application in preparation, it is intended to mention For the new application of Odontogenic cysts mescenchymal stem cell, expand its use scope.
The present invention is implemented as follows:
A kind of Odontogenic cysts mescenchymal stem cell treats ischemic disease medicinal application in preparation.
The beneficial effects of the present invention are: dental pulp mescenchymal stem cell of the invention is promoting angiogenesis and blood vessel bypass to build Stand, and promote limb activity functional rehabilitation etc. all has biggish advantage, can be used for critical limb ischemia treatment.
The clear dental pulp mescenchymal stem cell of the present invention is inhibiting Th1 type cell, Th17 type cell and TNF-α expression etc. convenient With stronger activity, and dental pulp mescenchymal stem cell can significantly promote the amplification of Tregs.In short, dental pulp mescenchymal stem cell There is stronger immunosuppressive activity and anti-inflammatory activity compared with umbilical cord mesenchymal stem cells.
The clear mescenchymal stem cell of the present invention has significant therapeutic effect to critical limb ischemia, and dental pulp mesenchyma is dry thin Born of the same parents have optimal efficiency, are expected to the clinical application of extension dental pulp mescenchymal stem cell, promote the treatment level of critical extremity ischemia.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the Flow cytometry result of 2 dental pulp mescenchymal stem cell phenotype of the embodiment of the present invention;
Fig. 2 is the Flow cytometry result of 2 mesenchymal stem cell phenotype of the embodiment of the present invention;
Fig. 3 is the Flow cytometry result of 2 umbilical cord mesenchymal stem cells phenotype of the embodiment of the present invention;
Fig. 4 is the Flow cytometry result of 2 fat mesenchymal stem cell phenotype of the embodiment of the present invention;
Fig. 5 is that 2 dental pulp mescenchymal stem cell skeletonization (left side) of the embodiment of the present invention breaks up and breaks up the detection of (right side) ability at rouge As a result;
Fig. 6 is that 2 umbilical cord mesenchymal stem cells skeletonization (left side) of the embodiment of the present invention breaks up and breaks up the detection of (right side) ability at rouge As a result;
Fig. 7 is 3 dental pulp of the embodiment of the present invention and umbilical cord mesenchymal stem cells to Th1/Th2/Th17 cell depression effect Compare;
Fig. 8 is that 3 dental pulp of the embodiment of the present invention and umbilical cord mesenchymal stem cells promote Autoimmune disease (Tregs) The comparison of effect;
Fig. 9 is 3 dental pulp of the embodiment of the present invention and umbilical cord mesenchymal stem cells human peripheral blood lymphocyte TNF α expression inhibiting The comparison of effect;
Figure 10 is that 4 part separate sources MSCs muscle drug treatment femoral artery ligation of the embodiment of the present invention causes under rat severe After limb ischemic, rat lower limb exercise ability appraisal result;
Figure 11 is that 4 part separate sources MSCs muscle drug treatment femoral artery ligation of the embodiment of the present invention causes under rat severe After limb ischemic, angiography detects rat lower limb vascular new life result;
Figure 12 is that 4 part separate sources MSCs muscle drug treatment femoral artery ligation of the embodiment of the present invention causes under rat severe After limb ischemic, Immunofluorescence test blood vessel endothelium mark CD31 expression of results.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase Product.
A kind of Odontogenic cysts mescenchymal stem cell, which is provided, to the embodiment of the present invention below treats ischemic disease drug in preparation Using illustrating.
Specifically, the embodiment of the present invention provides a kind of Odontogenic cysts mescenchymal stem cell and treats ischemic disease drug in preparation Using.
Inventors have found that the oxidative stress of ischemic injuries induction and inflammatory reaction etc., it is dry thin to considerably reduce mesenchyma The survival rate of born of the same parents then reduces its effect.Inventor is further discovered that Odontogenic cysts mescenchymal stem cell is dry for dental pulp mesenchyma It when cell, can more efficiently inhibit inflammation etc., promote the survival rate of dental pulp mescenchymal stem cell, then promote its treatment effect Fruit.It uses dental pulp mescenchymal stem cell for specific mescenchymal stem cell, can be further ensured that Odontogenic cysts mescenchymal stem cell There is better therapeutic effect for ischemic disease.
Further, dental pulp mescenchymal stem cell is from the adult wisdom tooth in the deciduous teeth that fall off, teenager's correction tooth and 18-35 years old One of or it is a variety of.
Further, ischemic disease is ischemic disease of lower extremity, and ischemic disease is severe limb ischemia pathologies.
Further, the effective dose of Odontogenic cysts mescenchymal stem cell is 1x10 in drug6To 1.67x107A/milliliter.
The dosage form of drug includes any one in cell suspending liquid injection, gelling agent and spray.Using above-mentioned concentration Drug can reduce side effects of pharmaceutical drugs, and guarantee the therapeutic effect of drug.
Further, inventor has found that Odontogenic cysts mescenchymal stem cell is improving the confession of operation side blood flow and improving operation side There is significant effect in limb ischemia degree, then the embodiment of the present invention provides a kind of Odontogenic cysts mescenchymal stem cell and changes in preparation Application in kind operation side supply of blood flow and the drug of improvement operation side limb ischemia degree.Wherein, improve operation side blood flow Supply includes promoting the foundation of angiogenesis and new Doppler flow mapping.
It is specific to a kind of application progress of Odontogenic cysts mescenchymal stem cell provided by the invention below in conjunction with specific embodiment Explanation.
The embodiment of the present invention uses dental pulp mescenchymal stem cell for experimental example, to fill between umbilical cord mesenchymal stem cells, marrow Matter stem cell and fat mesenchymal stem cell are that comparative example is detected.
The separation and culture of 1 mescenchymal stem cell of embodiment
(1) dental pulp mescenchymal stem cell is separately cultured
Tooth is sterile under anaesthesia to pull out no saprodontia, without pulpitis and pulp necrosis after donor signs informed consent form Third molar.The fresh tooth pulled out is immediately placed in the tooth collecting bottle equipped with 20ml sterile saline, for 24 hours interior separation Cultivate dental pulp stem cell.Method particularly includes: corona Hou Qu pulp tissue is shredded, is shredded after physiological saline repeated flushing;It is placed in In the physiological saline of collagenase type I containing 3mg/ml and 4mg/ml Dispase, 37 DEG C of water-baths digest 40min;Then, 70 μm are crossed Cell sieve collects cell, and 1000rpm is centrifuged 10min, is resuspended with appropriate MSC serum free medium at single cell suspension, by cell It is inoculated in 10cm culture dish, in 37 DEG C, 5%CO2Culture, changes the liquid once for 3-5 days.Cell is observed under inverted microscope daily Upgrowth situation after 10-14 day, 0.25% trypsin digestion of the cell of Clonal growth is collected, obtains P0 between dental pulp Mesenchymal stem cells.
(2) umbilical cord mesenchymal stem cells are separately cultured
After multipara agrees to and signs informed consent form, umbilical cord is stored in equipped with containing 300ml α-MEM culture medium In 500ml sterile glass vials, stored in 4 DEG C, and be separately cultured umbilical cord stem cells in 24 hours after collection.Biohazard Safety Equipment takes Out after umbilical cord, the segment cleaned repeatedly with sterile saline, and cut into 2cm or so, and umbilical vein and arteria umbilicalis are picked, take glue Freeze the part Wharton ' s jelly of shape;Shredded into 5mm3Size tissue block successively puts tissue block with dropper in preparatory In the 10cm culture dish of wetting, after a small amount of serum free medium is added, in 37 DEG C, 5%CO2Cultivate 48h;Continue to train after fluid infusion It supports, changes the liquid once within every 3-4 days;Visible spindle shape cell climbs out of within 7-10 days;10~14 days, tissue block is removed, by Clonal growth Cell collected with 0.25% trypsin digestion, obtain P0 for umbilical cord mesenchymal stem cells.
(3) mesenchymal stem cell is separately cultured
After donor agrees to and signs informed consent form, acquisition donor's myeloid tissue is placed in aseptic collection pipe. Firstly, using Percoll partition method, separating bone marrow single nuclear cell;After brine, using MSC free serum culture Base weight hangs mononuclearcell;By it according to 2.0 × 105/cm2Density be inoculated into 10cm culture dish, in 37 DEG C, 5%CO2Training It supports;It changes liquid after 48h, removes non-attached cell, then change liquid every 48h, after clone to be formed, with 0.25% trypsin digestion It collects, obtains P0 for umbilical cord mesenchymal stem cells.
(4) fat mesenchymal stem cell is separately cultured
After donor is agreed to and signs informed consent form, donor adipose tissue is acquired, is placed in equipped with 300ml α-MEM's In 500ml culture bottle, 4 DEG C of preservations, and in interior separation for 24 hours.Specifically: adipose tissue is put into strainer, it is anti-through physiological saline After multiple flushing, it is cut into 2mm3Size or so;Cross sieve and point to 50ml centrifuge tube, 100g is centrifuged 3min, collect upper-layer fat in 50ml centrifuge tube;Addition standard digestive juice 20ml (collagenase type I concentration 0.2%, trypsinase concentration 0.05%, the two 1:1), 37 DEG C of shaking bath 45min;3000rpm, centrifugation 10min collect cell;Cell suspension is mixed with erythrocyte cracked liquid 1:2, 1800rpm, 8min after gently blowing and beating abandon supernatant, the cell suspension of collection are filtered through 100 μM of cell sieves, 1800r/min centrifugation 8min obtains mononuclearcell;Culture medium is added, cell concentration is adjusted to 104A cell/ml, is inoculated in 10cm culture dish (10ml) is placed in 37 DEG C of 5%CO2Incubator culture;After inoculation for 24 hours, it is seen that many short fusiform attached cells;It is changed after 48 hours Liquid changes the liquid once for every 3 days later;7-10 days cells have been paved with bottle wall substantially and have formed fine and close single layer, are disappeared with 0.25% trypsase Change and collect, obtains P0 for umbilical cord mesenchymal stem cells.
The immunophenotype of 2 mescenchymal stem cell of embodiment and the detection of multinomial differentiation potential
The P0 obtained is collected for mescenchymal stem cell (dental pulp, umbilical cord, marrow, fat) with 6000-8000 cell/cm2's Density is passed on, and after cultivating 4d, is collected cell with 0.25% trypsin digestion, is continued to pass on.Be passaged to P5 generation, respectively into Row immunophenotype and the detection of multinomial differentiation potential.It is specific as follows:
(1) immunophenotype detects
Mescenchymal stem cell after 0.25% trypsin digestion, CD73, CD90 for being marked using FITC or PE, CD105, The antibody such as CD11b, CD19, CD34, CD45, HLA-DR and corresponding isotype control Ab mark cell, flow cytomery. Testing result referring to figures 1-4, according to Fig. 1-Fig. 4 display it is found that separate sources mescenchymal stem cell (dental pulp, umbilical cord, marrow, Fat) high expression mescenchymal stem cell specific antigen CD73, CD90 and CD105, do not express hematopoiesis and immunocyte surface Indicate CD11b, CD19, CD34, CD45, hardly expression trnasplantion immunity repels relevant surface marker HLA-DR.These results It is dry to successfully obtain dental pulp mescenchymal stem cell, umbilical cord mesenchymal stem cells, medulla mesenchyma by the method for embodiment 1 for prompt Cell, fat mesenchymal stem cell.
(2) multi-lineage potential detects
Osteoblast Differentiation: by the P6 of separate sources for mescenchymal stem cell (dental pulp, umbilical cord, marrow, fat) respectively according to 1 × 104Cells/well is inoculated with 24 well culture plates, is placed in 37 DEG C, 5%CO2, humidity 95% incubator in cultivate.After 24 hours, it is added Osteogenic induction liquid changes liquid in every 4 days.3 Zhou Houyong Alizarin red stainings are induced to be identified.
Break up at rouge: by the P6 of separate sources for mescenchymal stem cell (dental pulp, umbilical cord, marrow, fat) respectively according to 1.5 ×104Cells/well is inoculated with 24 well culture plates, is placed in 37 DEG C, 5%CO2, humidity 95% incubator in cultivate.After 24 hours, add Enter adipogenic induction liquid, changes liquid within every 4 days.2 Zhou Houyong oil red O (Oil Red O) dyeing is induced to be identified.
Testing result shows to separate dental pulp mescenchymal stem cell, the umbilical cord mesenchyma of acquisition referring to Fig. 5-Fig. 6, Fig. 5-Fig. 6 Stem cell, mesenchymal stem cell and fat mesenchymal stem cell all have skeletonization and at rouge differentiation potentials.
3 dental pulp of embodiment and umbilical cord mesenchymal stem cells immunosuppressive activity compare,
Respectively with P6 for dental pulp mescenchymal stem cell or umbilical cord mesenchymal stem cells, with human peripheral blood single nucleus cell with 1: Be incubated for jointly after the number of cells ratio mixing of 1,1:5,1:10 (incubation conditions are as follows: 37 DEG C, 5%CO2, saturated humidity incubator In), 48h after incubation, using the different subtype of Flow cytometry T lymphocyte, such as Th1, Th2, Th17 and Tregs, The expression and secretion of TNF-α are detected simultaneously.
Testing result is according to table 1 and Fig. 7 it is found that single with peripheral blood in mescenchymal stem cell referring to table 1 and Fig. 7-Fig. 9 Under conditions of nucleus is incubated for jointly with 1:5 ratio, suppression of the dental pulp mescenchymal stem cell to Th1 type and Th17 type T lymphocyte Rate processed is 52.57 ± 8% and 61.37 ± 3.53%, is significantly higher than umbilical cord mesenchymal stem cells;Two pairs of Th2 type cells are 44.53 ± 13.52%, lower than the 67.98 ± 12.25% of umbilical cord mesenchymal stem cells.According to table 1 and Fig. 8 it is found that promotion to Tregs Rate is difference 71.6 ± 23.4, is significantly higher than umbilical cord mesenchymal stem cells.It is according to table 1 and Fig. 9 it is found that dry thin with umbilical cord mesenchyma Cell phase ratio, dental pulp mescenchymal stem cell have stronger inhibition efficiency to the expression of lymphocyte TNF-α.In conclusion between dental pulp Mesenchymal stem cells have stronger immune and inflammation depression effect, illustrate that dental pulp mescenchymal stem cell can be induced in ischemic injuries Oxidative stress and inflammatory reaction etc., promote the survival rate of dental pulp mescenchymal stem cell, then promote its therapeutic effect.
1 dental pulp of table and umbilical cord mesenchymal stem cells immunosuppressive effect compare
The therapeutic evaluation of 4 tooth mesenchymal stem cells for treatment femoral artery ligation rat critical extremity ischemia of embodiment
Wistar rat 60, half male and half female, weight (200-280) g is randomly divided into 6 groups by weight, every group 10, divides It Wei not sham-operation group, model control group, BMMSC (marrow), ADMSC (fat), DPMSC (dental pulp), 6 groups of UCMSC (umbilical cord).
(1) firstly, carrying out the preparation that femoral artery ligation causes rat lower limb ischemia model, specifically: rats by intraperitoneal injection After the anesthesia of 40mg/kg yellow Jackets, dorsal position is fixed, and preserved skin, left lower quadrant does longitudinal opening, ligatures left common iliac artery and ilium is dynamic All branches of arteries and veins;Left side groin longitudinal opening, separation ligature nearly two branch of groin femoral artery.Successively close notch, seam Close muscle layer and skin.Sham-operation group only separates but does not ligature blood vessel.
(2) it is treated and (is filled between dental pulp mescenchymal stem cell, umbilical cord mesenchymal stem cells, marrow in operation same day administration Matter stem cell, the treatment method of fat mesenchymal stem cell are identical, and difference, which is only that, is replaced cell), specifically: digestion The 6th generation mescenchymal stem cell is collected, 1800rpm is centrifuged 8min and collects cell, and it is then primary with brine, according to 1.7 ×107Cell/ml, which is resuspended, obtains stem cell suspension, and reagent group single intramuscular injection stem cell suspension, dosage is respectively 5 × 106 Cell/0.3ml/5 point/only;Model control group single intramuscular injection solvent 0.3ml/5 point/only.
(3) surrounding is observed, metrics evaluation is carried out:
1. limb scores: (0=sole/toe flexion is to resist tail for 1w, 2w, 3w, 4w progress limb scores after administration Mild traction;1=plantar flexed, toe are not bent;The vola 2=and toe are not bent;3=does not use hind leg).And it calculates The AUC of (1-4) w scoring, compares the difference of each group score value and model control group;
2. Doppler measures blood flow: 1w, 2w, 3w, 4w after administration, 40mg/kg yellow Jackets anesthetized rat is injected intraperitoneally, Left lower extremity depilation preserved skin, the nearly groin femoral artery blood flow velocity in measurement operation side, and the AUC of (1-4) w blood flow velocity is calculated, than The difference of more each administration group blood flow velocity and model control group;
3. angiography: 4w after administration, dorsal position is fixed after the anesthesia of rats by intraperitoneal injection 40mg/kg yellow Jackets, from Groin makees longitudinal cut to knee joint, separates femoral artery, ligatures proximal part, and distal end does arterial cannulation, injects contrast agent iodine General sieve amine injection (0.6-0.8) ml, continuously takes the photograph piece with X-ray machine immediately after injecting.Observe each administration group new vessels situation;
4. Histological evaluation: after X-ray takes the photograph piece, taking the left limb knee joint of rat to ankle-joint section muscle, be put into 11% formal It is fixed in woods solution, for detecting capillary density, muscular death and inflammatory reaction situation.
4) experimental result:
As shown in table 2 and Figure 10, after ligation operation, there is limping, cyanosis, extremity gangrene in various degree in animal pattern, and Postoperative (1-4) w, limb scores maintain 2 or more, show moulding success, and model is more stable.Between dental pulp, umbilical cord, fat, marrow After mesenchymal stem cells treatment, limb scores have different degrees of reduction, comprehensive limb scores situation, and DPMSC can significantly mitigate operation Side limb ischemia degree, AUC have statistical difference compared with model control group.
2 test drug MSC of table to rat art side limb scores influence (score value,N=8-10)
Note: compared with sham-operation group,***P<0.001;Compared with model control group,P<0.05.N: number of animals.
As shown in table 3, postoperative 1-4 weeks, animal pattern art side femoral artery blood flow velocity was substantially reduced, with sham-operation group ratio Compared with having a statistical difference, mescenchymal stem cell treatment then has the tendency that improving art side supply of blood flow.As shown in figure 11, postoperative 4w, Rat art side knee joint develops to ankle-joint section blood vessel, and model control group significantly reduces, and people's dental pulp, bone marrow mesenchymal stem cells are controlled Visible vessels are newborn after treatment, and new Doppler flow mapping is established, especially best with the therapeutic effect of dental pulp mescenchymal stem cell.Such as Figure 12 Shown, histopathology is the results show that mescenchymal stem cell treatment can improve the institutional framework of ischemic part, reduction tissue Necrosis promotes regeneration, wherein the proliferation of visible a large amount of vascular endothelial cells, it is new to show that mescenchymal stem cell can promote blood vessel It is raw, the comparative studies of four kinds of cells is shown, dental pulp mescenchymal stem cell has significant optimal efficiency in promoting angiogenesis.
3 test drug MSC of table to femoral artery blood flow velocity influence (N=8-10)
Note: compared with sham-operation group, P < 0.001 * * *.
In short, dental pulp mescenchymal stem cell has optimal efficiency in critical extremity ischemia disease treatment.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of Odontogenic cysts mescenchymal stem cell treats ischemic disease medicinal application in preparation.
2. application according to claim 1, which is characterized in that Odontogenic cysts mescenchymal stem cell is that dental pulp mesenchyma is dry thin Born of the same parents.
3. application according to claim 2, which is characterized in that the dental pulp mescenchymal stem cell from the deciduous teeth that fall off, One of teenager's correction tooth and 18-35 years old adult wisdom tooth are a variety of.
4. application according to claim 1, which is characterized in that the ischemic disease is ischemic disease of lower extremity.
5. application according to claim 1, which is characterized in that the ischemic disease is severe limb ischemia pathologies.
6. application according to claim 1, which is characterized in that the effective agent of Odontogenic cysts mescenchymal stem cell in the drug Amount is 1x106To 1.67x107A/milliliter.
7. application according to claim 6, which is characterized in that the dosage form of the drug include cell suspending liquid injection, Any one in gelling agent and spray.
8. a kind of application of Odontogenic cysts mescenchymal stem cell in the drug that preparation improves operation side supply of blood flow.
9. application according to claim 8, which is characterized in that the improvement operation side supply of blood flow includes promoting blood vessel new The foundation of raw and new Doppler flow mapping.
10. a kind of application of Odontogenic cysts mescenchymal stem cell in the drug that preparation improves operation side limb ischemia degree.
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