CN105797139A - Application of PTH combining SDF-1 in preparing medicine for improving periodontal tissue regeneration - Google Patents
Application of PTH combining SDF-1 in preparing medicine for improving periodontal tissue regeneration Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/22—Hormones
- A61K38/29—Parathyroid hormone, i.e. parathormone; Parathyroid hormone-related peptides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/19—Cytokines; Lymphokines; Interferons
- A61K38/195—Chemokines, e.g. RANTES
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Abstract
The invention discloses application of PTH combining SDF-1 in preparing medicine for improving periodontal tissue regeneration. A medicinal form of the SDF-1 is a medical collagen repairing film containing the SDF-1. Stem cells can be regulated to differentiate in the osteogenesis direction by jointly using the medical collagen repairing film containing the SDF-1 and the PTH to guide formation of new periodontal attachment. The medical collagen repairing film containing the SDF-1 is excellent in physical property, good in flexibility, degradable in a body and good in biocompatibility; a porous net-shaped three-dimensional structure of the medical collagen repairing film can continuously maintain an isolating barrier effect of a tissue, can provide space for the collected stem cells and facilitates attachment, proliferation and differentiation of the stem cells.
Description
Technical field
The present invention relates to PTH associating SDF-1 application in preparation promotes the medicine of paradenlal tissue regeneration.
Background technology
Periodontal disease causes alveolar bone to destroy absorption, and Periodontal Supporting Tissue lacks, and is the main cause causing loss of tooth.Tooth
The main target of week sick treatment is to obtain the regeneration of periodontal tissue.The effect of paradenlal tissue regeneration treatment is largely dependent upon
The quality and quantity of the periodontal regenerative sexual cell of disease damage Local residues, yet with the impact of long-term chronic inflammation, lesional area tooth
All lazy weights of regenerative cell, function are the best.How to obtain the key that enough periodontal regenerative sexual cells are periodontal disease therapeutics.
In recent years, tissue engineering technique becomes the focus of research.But it is translated into clinical practice to remain at many obstacles.
Stroma cell derivative factor-l (Stromal cell derived factor-1, SDF-1) is a kind of important cell chemotactic factor,
In the existing numerous researchs of medical science other field.CXCR4 (C-X-C chemokine receptor type 4) is the receptor of SDF-1,
Being expressed in multiple ancestral cells surface, can couple mediation it migrates with SDF-1.Impaired mouse brain, heart, muscle,
During liver, kidney, skin and knitting, the rising of damaged part SDF-1 can as potential chemoattractant, raise blood circulation or
Stem cell/the precursor of local expression CXCR4, produces tissue-specific differentiation to repair wound.SDF-1 is to periodontal membrane
Stem cell has chemotactic and promotees the effect of proliferation and differentiation, and topical application SDF-1 can remarkably promote mescenchymal stem cell and hematopoietic stem cell
Going back to the nest to periodontal and create district, promote angiogenesis, reduce inflammation reaction, increases new bone volume and density, strengthens area of new bone quality,
It it is a kind of chemoattractant in original position organizational project with application prospect.But, its action effective is affected by DPP-IV/CD26.
CD26 is II type transmembrane glycoprotein, and the many hematopoietic cells such as T activated and bone-marrow-derived lymphocyte, capillary endotheliocyte, epithelium is thin
Born of the same parents and stem cell are expressed DPP-IV, DPP-IV and are also present in blood plasma with soluble active.DPP-IV can crack and include
SDF-1 is at interior many chemotactic factors, somatomedin, nerve polypeptide and other important polypeptide.Therefore, searching can suppress
The preparation of SDF-1 degraded, for improving the activity of SDF-1, promotes that tissue regeneration effect has great importance.
Parathyroid hormone (parathyroid hormone, PTH) is unique dredging for treating sclerotin through U.S. FDA approval
The bone anabolism medicine of pine, its level raises can promote bone metabolism.Vivo and vitro experiment all proves that intermittent application PTH is to bone
Anabolism has facilitation.At cellular level, batch applications PTH can promote that bone stave cell is divided into osteoblast, makes
Osteoblastic quantity increases.In tissue level, as intermittence application PTH, PTH can promote the anabolism of bone, performance
Area, density and intensity for bone increase.PTH also has stem cell mobilization effect, and research shows that PTH can effectively mobilize
Marrow stromal cell enters blood.Ischemia (damage) can excite the depression effect to DPP-IV that PTH mediates, thus on
Adjust the level of SDF-1, thus be conducive to raising CXCR4+ cell and move cell from bone marrow through blood flow migrates to ischemic tissue.
The precursor that intermittent application PTH can be effectively facilitated mice is mobilized.
But, by regulation and control SDF-1/CXCR4 axle, current PTH promotes that heart and injury side is more of concentrated in the research of tissue regeneration
Face, the research being applied to other tissue injurys is the fewest, if the damage academia being adapted to its hetero-organization there is no unified viewpoint.
Not being both with heart ischemia damage, periodontal disease is a kind of chronic infectious disease, due to the chronic inflammation that periodontal lesional area is long-term
Disease causes the hard and soft tissue including gingiva, periodontal membrane, alveolar bone and cementum to damage, its pathogenesis and cure mechanism with
Heart ischemia damage is entirely different, and therefore can PTH Yu SDF-1 be combined and be used for the regeneration of periodontal tissue and have and greatly can not
Expection property, and be not currently also related to PTH associating SDF-1 and treat the report of periodontal tissue's damage.
Summary of the invention
For above-mentioned prior art, it is an object of the invention to provide PTH associating SDF-1 and promote paradenlal tissue regeneration in preparation
Application in medicine.
For achieving the above object, the present invention uses following technical proposals:
A first aspect of the present invention, it is provided that PTH associating SDF-1 application in preparation promotes the medicine of paradenlal tissue regeneration.
In above-mentioned application, the medicinal forms of described SDF-1 is the medical collagen repair membrane containing SDF-1.
In above-mentioned application, in the described medical collagen repair membrane containing SDF-1, the content of SDF-1 is that 5-8 μ g/ opens;It is preferably
5 μ g/ open.
A second aspect of the present invention, it is provided that a kind of medicine treating periodontal disease, comprises PTH and SDF-1, PTH and SDF-1
Weight ratio be 1:3-5.It is preferably 1:4.
Although it should be noted that the report of the most existing PTH associating SDF-1 treatment heart and injury, but there is no the two combination and promote
Enter the research report of paradenlal tissue regeneration.Owing to the site of tissue damage of human body has multiple, the cell regeneration energy of different damage locations
Power also significant difference, therefore, treatment thoughts and medicine for different tissues damage location are the most varied, different tissues
Portability is not had between the medicine of damage.So the drug combination of the present invention possesses unobviousness.The present invention will
PTH associating SDF-1 is for the treatment of periodontal tissue's damage, it is possible to produce the collaborative effect promoting tissue regeneration.External internal
It is demonstrated experimentally that PTH associating SDF-1 has extraordinary therapeutic effect to periodontal tissue's damage.
Beneficial effects of the present invention:
The present invention is combined with PTH by the medical collagen repair membrane containing SDF-1, it is possible to stem cell breaks up to skeletonization direction in regulation and control,
Guide the formation of new-attachment of periodontium.Wherein, the good physical properties of the medical collagen repair membrane containing SDF-1, pliability is good,
Can degradation in vivo, good biocompatibility, the three dimensional structure of its holey can not only persistently maintain the isolation barrier effect of tissue,
Space, beneficially stem cell can also be provided to adhere to for the stem cell raised, breed and differentiation.The present invention uses medical collagen to repair
Laminating adhesive is that carrier carries SDF-1, it is possible to promotes the stem cell recruitment effect of SDF-1, provides attachment site for cell, is conducive to
It is created district's field planting at periodontal, breeds and differentiation.Meanwhile, the combination of medical collagen repair membrane and SDF-1 also can reduce SDF-1 and exists
The loss in paradental defect district and volatilization, make defect local maintain higher drug level and slowly discharge, thus effectively play pharmacology
Effect.
Accompanying drawing explanation
Fig. 1: PTH combines promotion Periodontal ligament stem cell with SDF-1 breeds and migration results;
The impact that periodontal ligament stem cell alkaline phosphatase activities and Mineral nodules are formed by Fig. 2: PTH and SDF-1 use in conjunction;
Fig. 3: PTH and SDF-1 use in conjunction is on periodontal ligament stem cell BSP, the impact of OCN and Runx2 gene expression;
Fig. 4: PTH combines the recruitment to rat periodontal ligament defective region CXCR4+ cell with SDF-1;
Fig. 5: PTH combines with SDF-1 rat periodontal ligament defective region MSCs is raised effect;
Ge Zu paradental defect district periodontal osteanagenesis situation is compared in Fig. 6: postoperative different times H&E dyeing;
Cementum, periodontal membrane fiber regeneration situation are respectively organized in Fig. 7: healing later stage H&E dyeing;
Fig. 8: paradental defect district skeletonization associated protein immunohistochemical staining and TRAP dyeing.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments, it should explanation, the description below merely to explain the present invention,
Its content is not defined.
Embodiment 1:PTH is studied with the united experiment in vitro of SDF-1
1. experimental technique:
Separate from the healthy premolars pulled out because correction needs, cultivate Periodontal ligament stem cell (human periodontal
Ligament stem cells, hPDLSCs), screen single cell clone with limiting dilution assay;In experiment in vitro, the application of SDF-1 is dense
Degree is 50ng/ml for the application concentration of 200ng/ml, PTH, and PTH is intermittent application.Experiment is divided into four groups: A group for the moon
Property matched group, without PTH and SDF-1;B group PTH Han 50ng/ml;C group SDF-1 Han 200ng/ml;D group contains 50ng/ml
PTH and 200ng/ml SDF-1.In B group and D group, PTH is intermittent application, i.e. in the cultivation cycle of every 48h,
At initial 6h, cell adds the culture fluid containing 50ng/ml PTH.After cell is exposed to PTH 6h, changing liquid, cell exists
Without being further cultured for 42h in the culture fluid of PTH, every 48h changes a culture fluid.
(1) by cell viability detection kit (cell-counting kit-8, CCK8), cell migration assay detection PTH with
SDF-1 combines the impact migrating periodontal ligament stem cell and breeding.
(2) gathered by alkali phosphatase (Alkaline phosphatase, ALP) active testing, Alizarin red staining method and real-time quantitative
Synthase chain reaction (quantitative real-time polymerase chain reaction, qRT-PCR) measures PTH with SDF-1 and combines
The application impact on hPDLSCs Osteoblast Differentiation ability.
(3) use SPSS16.0 statistical analysis software to carry out statistical analysis, relevant parameter used one factor analysis of variance,
Data all represent with meansigma methods ± standard error (Mean ± SEM).< when 0.05, difference has statistical significance to P.
2. experimental result:
(1) being successfully separated and turn out Periodontal ligament stem cell, cellular morphology is normal, in good condition.
(2) PTH Yu SDF-1 use in conjunction can promote propagation and the transfer ability of PDLSCs: CCK8 result shows PTH
Promote that with SDF-1 use in conjunction the effect of cell proliferation is the strongest (P < 0.05) (A in Fig. 1);Migrate experiment and show that experimental group all can
Promote the migration (P<0.05) of periodontal ligament stem cell, after associating PTH, make rush migration effect higher (P>0.05) (Fig. 1 of SDF-1
Middle B-C).
(3) PTH Yu SDF-1 use in conjunction can promote the Osteoblast Differentiation of PDLSCs: ALP active testing result is cell
When cultivating 7 days, PTH and SDF-1 use in conjunction can dramatically increase ALP activity (P < 0.05), experiment when cell is cultivated 14 days
ALP activity between group and matched group there was no significant difference (P > 0.05), shows that PTH Yu SDF-1 use in conjunction is trained at cell
The early stage supported can increase ALP activity (A in Fig. 2);Alizarin red staining result shows that PTH with SDF-1 use in conjunction can be notable
Promote the formation (P < 0.05) (B-C in Fig. 2) of Mineral nodules;QRT-PCR result display PTH Yu SDF-1 use in conjunction can
Raise skeletonization Research of predicting markers resorption lacunae (bone sialoprotein, BSP), Runt associated transcription factor 2 (runt related
Transcription factor 2, Runx2), the gene expression dose (P < 0.05) (Fig. 3) of Bone Gla protein (osteocalcin, OCN).
Embodiment 2:PTH is studied with the united experiment in vivo of SDF-1
1. experimental technique:
Select 60 male Wistar rats (8 week old, 220~250g), by number of animals, be randomly divided into two big groups, often group
Lumbar injection PTH (the 40 μ g/kg) next day of 30: one group, another organizes lumbar injection normal saline.All rats are cooked bilateral
Mandibular bone is windowed defect, places the collagem membrane containing SDF-1 (5 μ g) in the defect of left side, and the collagem membrane containing PBS is placed on right side.This reality
Test and be divided into 4 groups: only at the matched group of the blank collagem membrane of defect local placement, local applying SDF-1 group, lumbar injection PTH group,
Local applies SDF-1 lumbar injection PTH group simultaneously.Take 3 days, 1 week, 2 weeks, 4 weeks, 8 weeks when collecting as Postoperative Specimen
Between point, often group takes 6 samples in each time.Fixing rear conventional EDTA decalcification in 4% paraformaldehyde after sampling, dehydration,
Transparent, paraffin embedding, prepare paraffin section.
Preparation method containing SDF-1 medical collagen repair membrane is: with PBS, the SDF-1 of powder being made into concentration is
The solution of 50 μ g/ml, is placed in medical collagen repair membrane in SDF-1 solution, finally soaked collagem membrane is placed on 6 orifice plates
In, place 12h for 4 DEG C and make it fully absorb liquid.SDF-1 and collagem membrane with magnitude relation: 5 μ g/ open.
(1) CXCR4 immunofluorescence dyeing and the double dye of CD34-/CD90+ immunofluorescence is used to observe paradental defect agglutination
Middle PTH with SDF-1 combines the impact of the expression on SDF-1 receptor CXCR 4 and to mescenchymal stem cell (mesenchymal
Stem cells, MSCs) raise situation.
(2) HE dyeing detection paradental defect district periodontal membrane, cementum, the regeneration situation of alveolar bone.
(3) row ALP, Runx2, type i collagen (collagen, Col I) immunohistochemical staining, and carry out anti-tartaic acid phosphorus
Acid enzyme (Tartrate-resistant acid phosphatase, TRAP) dyeing, compares defective region skeletonization in four groups of agglutinations anti-with broken bone
The difference answered.
(4) the data obtained all represents with mean ± standard deviation.Application SPSS16.0 statistical package, carries out list to relevant parameter
Analysis of variance, < when 0.05, difference has statistical significance to P.
2. experimental result:
(1) postoperative laboratory animal all survives, and occurs without obvious inflammation and immunological rejection at defect.By to paraffin section
CXCR4 immunofluorescence dyeing and the double dye of CD90+/CD34-immunofluorescence, result shows, each time point PTH with
CXCR4+ cell and MSCs that SDF-1 associating is raised are all many compared with other groups, difference statistically significant (P < 0.05) (Fig. 4,
5)。
(2) paradental defect district H&E coloration result shows, PTH with SDF-1 combines can promote to create district's skeletonization in early days, and formed
Level of Alveolar Bone pulp cavity is less, eburnation, and area of new bone area is higher than other each group and has significant difference (P < 0.05) (Fig. 6).Tooth
All membrane fibers and cementum new life occur in healing later stage (4,8 weeks), and PTH+SDF-1 group neonatal tooth sclerotin goes out at the 4th Zhou Shiyi
Existing, to the most relatively other group thickness when the 8th week.By by each group of new life fiber angles compared with natural periodontal membrane angle (47.202 °),
Find that the newborn periodontal membrane fiber angle (50.289 °) the 8th week PTH+SDF-1 group is most bordering on natural teeth week film (Fig. 7).
(3) skeletonization associated protein immunohistochemical staining result shows, PTH with SDF-1 combines can promote that paradental defect heals
Commitment ALP and Runx2 expresses, and has significant difference (P < 0.05) with other each group.Phase after healing, PTH+SDF-1 group
Col I expression is higher, and SDF-1 group no significant difference (P > 0.05), but higher than PTH group and matched group, difference has statistics to anticipate
Justice (P < 0.05).TRAP coloration result shows, PTH with SDF-1 combines can activate osteoclast generation in early days, promotes the conjunction of bone
Become metabolism (Fig. 8).
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not limit to scope
System, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art need not pay
Go out various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (7)
1.PTH associating SDF-1 application in preparation promotes the medicine of paradenlal tissue regeneration.
Apply the most as claimed in claim 1, it is characterised in that the medicinal forms of described SDF-1 is medical containing SDF-1
Collagen repair membrane.
Apply the most as claimed in claim 2, it is characterised in that in the described medical collagen repair membrane containing SDF-1, SDF-1
Content be that 5-8 μ g/ opens.
Apply the most as claimed in claim 3, it is characterised in that in the described medical collagen repair membrane containing SDF-1, SDF-1
Content be that 5 μ g/ open.
5. treating a medicine for periodontal disease, the weight ratio comprising PTH and SDF-1, PTH and SDF-1 is 1:3-5.
6. medicine as claimed in claim 5, it is characterised in that the weight ratio of PTH Yu SDF-1 is 1:4.
7. comprise the clinical preparation of medicine described in claim 5.
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Cited By (1)
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CN112220967A (en) * | 2020-11-26 | 2021-01-15 | 山东大学 | Targeting antibacterial and in-situ bone-promoting dual-functional material and preparation method and application thereof |
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2016
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Title |
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Y. JUNG等: "Regulation of SDF-1 (CXCL12) production by osteoblasts; a possible mechanism for stem cell homing", 《BONE》 * |
葛少华等: "PTH和SDF-1联合应用对牙周膜干细胞生物学活性及牙周组织再生的影响", 《2016牙周病学学术研讨会论文集》 * |
褚云娟: "基质细胞衍生因子-1(SDF-1)与牙周组织自体(原位)再生", 《口腔医学研究》 * |
Cited By (2)
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CN112220967A (en) * | 2020-11-26 | 2021-01-15 | 山东大学 | Targeting antibacterial and in-situ bone-promoting dual-functional material and preparation method and application thereof |
CN112220967B (en) * | 2020-11-26 | 2021-08-03 | 山东大学 | Targeting antibacterial and in-situ bone-promoting dual-functional material and preparation method and application thereof |
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