CN107158406A - The glycosylated SiO of Glucomannan2Nano particle and its preparation method and application - Google Patents

The glycosylated SiO of Glucomannan2Nano particle and its preparation method and application Download PDF

Info

Publication number
CN107158406A
CN107158406A CN201710424892.1A CN201710424892A CN107158406A CN 107158406 A CN107158406 A CN 107158406A CN 201710424892 A CN201710424892 A CN 201710424892A CN 107158406 A CN107158406 A CN 107158406A
Authority
CN
China
Prior art keywords
sio
glucomannan
particle
glycosylated
cdi
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710424892.1A
Other languages
Chinese (zh)
Other versions
CN107158406B (en
Inventor
董磊
张峻峰
甘璟璟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Kanghe Qingyuan Biotechnology Co ltd
Original Assignee
Nanjing University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing University filed Critical Nanjing University
Priority to CN201710424892.1A priority Critical patent/CN107158406B/en
Publication of CN107158406A publication Critical patent/CN107158406A/en
Application granted granted Critical
Publication of CN107158406B publication Critical patent/CN107158406B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/70Carbohydrates; Sugars; Derivatives thereof
    • A61K31/715Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
    • A61K31/736Glucomannans or galactomannans, e.g. locust bean gum, guar gum

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention discloses the glycosylated SiO of Glucomannan2Nano particle and its preparation method and application.A kind of glycosylated SiO of Glucomannan2Nano particle, by SKGM or bletilla polysaccharide and SiO2The particle that obtained particle diameter is 10 1000nm is connected with each other by covalent bond.The invention provides a kind of new silica nanometer polysaccharide, pass through the various sizes of nano SiO 2 particle formation nanometer polysaccharide hydroxy activated with CDI after SKGM containing a large amount of mannoses or bletilla polysaccharide amination, can be with the character mutation of activating macrophage, and then cause new biological effect, improve the inflammatory conditions of intestines and stomach;Simultaneously in wound healing process, by the phenotype for regulating and controlling macrophage, tissue repair type macrophage is formed, is adjusted and acceleration of tissue repair, regeneration, can be applied in terms of the medicine of related inflammation disease and wound healing or external medical apparatus is prepared by TGF β 1 and VEGF.

Description

The glycosylated SiO of Glucomannan2Nano particle and its preparation method and application
Technical field
The invention belongs to biomedicine technical field, it is related to the glycosylated SiO of Glucomannan2Nano particle and its preparation side Method and application.
Background technology
Macrophage (Macrophage) is exempting from of being played an important role in all kinds of chronic inflammatory diseases develop Epidemic disease cell, including atherosclerosis, asthma, inflammatory gastrointestinal are scorching, rheumatoid arthritis and tissue repair etc..What is activated is huge Phagocyte stimulates a large amount of secretions of proinflammatory factor, so as to promote inflammatory reaction to develop.When body, inner tissue is inflamed When, the monocyte in blood is recruited to inflammation part, and is divided into the macrophage of activation, infiltrates mucous layer, and secretion promotees Inflammatory cytokines, so as to cause epithelial cell and body of gland apoptosis, barrier function forfeiture, necrosis, Granuloma formation and fiber Change.Such as IBD (Inflammatory bowel disease) and gastric ulcer (Gastric ulcer) are typical slow Property, the diseases associated with inflammation easily recurred, its cause of disease and pathogenesis are more complicated, and diagnosis and treatment are also quite intractable, but are directed to The treatment of macrophage is one of current popular research direction, suppresses the activation of macrophage by novel molecular therapeutic strategy State, reduces the expression of inflammatory factor, so as to alleviate the development of diseases associated with inflammation;Wound healing (wound healing) It is each stage healed after a complicated biological process, wound to have substantial amounts of protein molecular to be induced and regulated and controled, These factors are after synthesis and secretion, by acting on body cell and cytoplasm, the balanced development of organization of regulation control healing.Both Tissue repair is stimulated, the hyperplasia of tissue is limited again, to maintain the dynamic equilibrium of healing.Macrophage by Phenotypic change and The expression of relevant cell factor, participates in whole tissue repair, the process of regeneration (Tissue repair, Regeneration).
SKGM (Konjac glucomannan, hereinafter referred to as KGM) is neutral nonionic type linear polysaccharide, is by Portugal Grape sugar and mannose a kind of high-molecular compound with reference to formed by with β-Isosorbide-5-Nitrae glycosidic bond, there is very high viscosity, gelling, hold Aqueous, biocompatibility etc., these physicochemical properties are with good application prospect.KGM has multiple biological activities, such as anti- Tumour, improvement function of intestinal canal, fat-reducing, hypoglycemic effect etc., have been applied to clinical, medicine and other fields, to the further of KGM Research and deep development utilize the extensive concern for having caused people.In recent years, the research of polysaccharide polymer enters one newly Level, be it in medicine, food with the further investigation to its structure-activity relationship, it was found that the mechanism of action of Pharmacological The application in product field provides theoretical foundation, accelerates the exploitation of natural polysaccharide polymers.The bioactivity of polysaccharide is relied on It is mutually distinguishable with acceptor, interact during, and natural poly- polysaccharide greatly limit to itself as macromolecule The exploration of bioactivity.Bletilla polysaccharide (Bletilla Striata polysaccharide, hereinafter referred to as BSP) be it is a kind of from Mannosym, the neutral nonionic molded line being made up of 4 molecule mannoses and 1 molecule glucose obtained by the extraction of the traditional Chinese medicine bletilla striata Shape mannosan, with anti-inflammatory, promotees blood coagulation, antiviral, antitumor, the biological activity such as anti-oxidant.Bletilla polysaccharide is safe height The medical material of effect, with excellent physicochemical property, the quite biomaterial with development prospect.
Functional molecular is introduced to nano grain surface by covalent bond to obtain as a kind of method for preparing new material The extensive concern of people and further investigation, and made important progress in fields such as catalysis, electronics and biological and chemical detections, The particle of this modified can be applied directly as a kind of functional material.SiO2Nano particle is due to its excellent physics Chemical property, from industrial production to basic research, is all widely used in various fields.Particularly monodispersed SiO2Colloid Particle, with monodispersity, size is in big scope adjustability, with monodispersed SiO2Nano particle be unit construct it is new Nano material has potential application prospect.At present, about study limitation of the mannocarolose on macrophage in targeted drug The structure of carrier.
The content of the invention
It is an object of the invention to provide a kind of glycosylated SiO of Glucomannan2Nano particle.
It is a further object of the present invention to provide the glycosylated SiO of the Glucomannan2The preparation method of nano particle.
It is yet another object of the invention to provide the glycosylated SiO of the Glucomannan2The application of nano particle.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of glycosylated SiO of Glucomannan2Nano particle, by Glucomannan and SiO2It is connected with each other by covalent bond The particle diameter arrived is 10-1000nm particle.
The glycosylated SiO of described Glucomannan2Nano particle, preferably passes through different SiO2Size Control Glucomannan sugar The SiO of base2The particle diameter of nano particle.
The glycosylated SiO of described Glucomannan2What nano particle was preferably prepared by the following method arrives:
(1) amination Glucomannan is prepared;
(2) CDI methods activation SiO2Surface hydroxyl obtains the SiO containing imidazole group2
(3) by amidized Glucomannan and the SiO containing imidazole group2Reaction obtains the glycosylated SiO of Glucomannan2 Nano particle.
The glycosylated SiO of described Glucomannan2What nano particle was further preferably prepared by the following method arrives:
(1) prepared by amination Glucomannan
Glucomannan is weighed in DMSO, 2~4h is dissolved by heating, 40~60 DEG C, is cooled to room temperature, adds excessive carbonyl Diimidazole (CDI), 2~4h of room temperature reaction is fully activated, and adds excessive ethylenediamine, and continuing stirring makes it fully react, thoroughly Analysis, is freezed standby;Glucomannan and DMSO mol ratio are 1:106~1:108, the mass ratio of Glucomannan and carbonyl dimidazoles For 1:2~1:10, Glucomannan is 1 with ethylenediamine mol ratio:105~1:106
(2) CDI methods activation SiO2Surface hydroxyl
Weigh SiO2Particle is washed for several times, is added anhydrous propanone and is ensured water-less environment, SiO2Mole of particle and anhydrous propanone Than for 1:40~1:50, add CDI and react 1~2h, anhydrous propanone cleans for several times, removes unnecessary CDI, dry;SiO2With CDI's Mol ratio is 1:1~1:SiO described in 52The diameter of particle selects 10,30,100,500,1000nm five kinds;
(3)SiO2Surface mannose glycosylation modification
Weigh containing imidazole group SiO2With the DMSO solution containing amination Glucomannan, amination Glucomannan and miaow Oxazolyl group SiO2Mass ratio be 1:1~1:3, room temperature vortex 2~4h of concussion reaction, that is, obtain the glycosylated SiO of Glucomannan2 Nano particle.
The glycosylated SiO of Glucomannan of the present invention2The preparation method of nano particle is comprised the steps of:
(1) amination Glucomannan is prepared;
(2) CDI methods activation SiO2Surface hydroxyl obtains the SiO containing imidazole group2
(3) by amidized Glucomannan and the SiO containing imidazole group2Reaction obtains the glycosylated SiO of Glucomannan2 Nano particle.
The glycosylated SiO of Glucomannan of the present invention2The preparation method of nano particle is further preferably comprising following Step:
(1) prepared by amination Glucomannan
Glucomannan is weighed in DMSO, 2~4h is dissolved by heating, 40~60 DEG C, is cooled to room temperature, adds excessive carbonyl Diimidazole (CDI), 2~4h of room temperature reaction is fully activated, and adds excessive ethylenediamine, and continuing stirring makes it fully react, thoroughly Analysis, is freezed standby;Glucomannan and DMSO mol ratio are 1:106~1:108, the mass ratio of Glucomannan and carbonyl dimidazoles For 1:2~1:10, Glucomannan is 1 with ethylenediamine mol ratio:105~1:106
(2) CDI methods activation SiO2Surface hydroxyl
Weigh SiO2Particle is washed for several times, is added anhydrous propanone and is ensured water-less environment, SiO2Mole of particle and anhydrous propanone Than for 1:40~1:50, add CDI and react 1~2h, anhydrous propanone cleans for several times, removes unnecessary CDI, dry;SiO2With CDI's Mol ratio is 1:1~1:5;Described SiO2The diameter of particle selects 10,30,100,500,1000nm five kinds;
(3)SiO2Surface mannose glycosylation modification
Weigh containing imidazole group SiO2With the DMSO solution containing amination Glucomannan, amination Glucomannan and miaow Oxazolyl group SiO2Mass ratio be 1:1~1:3, room temperature vortex 2~4h of concussion reaction, that is, obtain the glycosylated SiO of Glucomannan2 Nano particle.
Supernatant further preferably is abandoned comprising centrifugation after 2~4h of room temperature vortex concussion reaction in step (3), then it is repeatedly clear with deionization Wash, centrifugation is until without unnecessary solvent, reagent, 37 ° of drying are preserved in vacuum drying.
Glucomannan of the present invention glycosylates SiO2Nano particle is preparing treatment diseases associated with inflammation, gastric ulcer, wound Application in the medicine that recovery is closed.
Described diseases associated with inflammation preferably comprises such as colitis IBD, chronic gastritis, arthritis.
This invention to IBD disease, gastric ulcer model and full thickness skin excision trauma model by carrying out example Card.Animal herein includes but is not limited to:Mouse, rat, performing animal includes but is not limited to cat, dog, and other one A little animals for example but are not limited to ox, sheep, pig, horse, and primate for example but is not limited to monkey and people.Mouse inflammatory bowel Sick disease model, vivo detection be widely recognized as and received internal pharmaceutical activity detection model, while can also be It is other biological for example but to be not limited to people reference is provided.
Beneficial effect
The invention provides a kind of new silica nanometer polysaccharide, SKGM or the bletilla striata containing a large amount of mannoses are more By the various sizes of nano SiO 2 particle formation nanometer polysaccharide hydroxy activated with CDI after sugared amination, it can activate The character mutation of macrophage, and then cause new biological effect, a large amount of suppressive genes IL-10 are such as secreted, improve stomach and intestine The inflammatory conditions in road;Simultaneously in wound healing process, by regulating and controlling the phenotype of macrophage, tissue repair type macrophage is formed thin Born of the same parents, are adjusted and acceleration of tissue repair, regeneration by TGF-β 1 and VEGF, can prepare related inflammation disease and wound healing Applied in terms of the medicine or external medical apparatus of conjunction.The present invention lays the foundation for the bioactivity of further research Glucomannan; Compared with small-molecule drug, with high raw material selectivity, cost is relatively low, and nanosizing product is single, and separation is simple, possesses one Fixed industrial prospect;With holosaccharide ratio, what is protruded in therapeutic effect is to have more targeting, and drug effect is more preferably.
Brief description of the drawings
Fig. 1 is the SiO of different-grain diameter2And the KSiNPs synthesized as carrier transmission electron microscope morphology analysis
Fig. 2 is the grain size distribution that dynamic light scattering detects various sizes of SiNPs and KSiNPs
Fig. 3 is that infrared spectrum analysis detects that KSiNP30 specificity absorbs group
Fig. 4 is the efficacy assessment picture that KSiNP30 treats mouse TNBS diseases associated with inflammation
Fig. 5 is the treatment picture that KSiNP30 cuts off trauma model to mouse full thickness skin
Fig. 6 is the curve map that KSiNP30 cuts off wound healing rate to mouse full thickness skin
Fig. 7 is the curve map that BSiNP30 cuts off wound healing rate to mouse full thickness skin
Fig. 8 is influence of the various sizes of nanometer polysaccharide to IL-10 levels in Macrophage Cell supernatant
Embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still It should be appreciated that these descriptions are simply to further illustrate the features and advantages of the present invention, rather than to the claims in the present invention Limitation.
SKGM used in following examples comes from Megazyme (Wicklow, Ireland), and molecular weight is 200kDa, but it is not construed as the limitation to SKGM using source.
Embodiment 1:The preparation of KSiNPs solution
(1) prepared by amination SKGM
A certain amount of SKGM is weighed in DMSO, 3h is dissolved by heating, 45 DEG C, is cooled to room temperature, adds excessive carbonyl Base diimidazole (CDI), room temperature reaction 3h is fully activated, and adds excessive ethylenediamine, is continued to stir 18h, it is fully reacted, Dialysis three days, is freezed standby;SKGM and DMSO mol ratio are 5:106, the mass ratio of SKGM and carbonyl dimidazoles For 1:2, SKGM is 1 with ethylenediamine mol ratio:105
(2) CDI methods activation SiO2Surface hydroxyl
A certain amount of SiO is weighed respectively2(particle diameter is respectively 10,30,100,500,1000nm) washs for several times, adds certain The anhydrous propanone of amount ensures water-less environment, adds excess CDI and reacts 1~2h, anhydrous propanone cleans for several times, removes unnecessary CDI, dry in the air It is dry;SiO2Mol ratio with CDI is 2:1.
(3)SiO2Surface mannose glycosylation modification
Weigh a certain amount of containing imidazole group SiO2With the DMSO solution containing amination SKGM, amination konjaku Polysaccharide and imidazole group SiO2Mass ratio be 1:2, room temperature vortex concussion reaction 4h, that is, obtain glycosylating SiO2SKGM Nano particle (hereinafter referred to as KSiNPs).
The physicochemical property and sign of various sizes of SKGM nano particle, are shown in Fig. 1, Fig. 2 and Fig. 3
Transmission electron microscope results such as Fig. 1, the polysaccharide nanoparticle size of synthesis is substantially without significant change, surface attachment polysaccharide, Particle diameter distribution also no significant difference.
The particle diameter distribution of different size silicas before and after dynamic light scattering detection modification, as a result such as Fig. 2, receiving after modification Rice grain size is distributed also without significant change without significant change.
The result of infrared spectrogram such as Fig. 3, SiO2In 3 445.4cm-1Locate appearance-OH characteristic absorption peak, it can thus be appreciated that SiO2Nano-particle surface is present after substantial amounts of hydroxyl, modified polysaccharide in 3 100~3 450cm-1The hydroxyl peak at place substantially dies down; SiO2In 1094.7cm-1There is a wide strong asymmetric absworption peak, this is by Si-O-Si symmetrical stretching vibration absworption peaks. 462.6cm-1Locate the flexural vibrations absworption peak for Si-O-Si.And in Silica-KGM infrared spectrum, except original characteristic peak Outside, in 2876.1cm-1Occur in that very strong-C-H ,-CH2- stretching vibration absworption peak, and in 1400cm-1There is C-H in left and right Inplane shear vibration absorption peak.In addition in 1097.7cm-1, -1065.8cm-1It is interior multiple strong absworption peak occur, this be C-O-C, Si-O-C and Si-O-Si symmetrical stretching vibration absworption peak, these illustrate SiO2Reacted with KGM ,-(OCH2CH2)n- Strand has been integrated into SiO2On, KGM is coated on Nano-meter SiO_22On surface.This result shows the SiO of imidazole radicals activation2With Hydroxyl on amination SKGM is reacted, and has synthesized the nanometer polysaccharide that we want.
Embodiment 2:The preparation of BSiNPs solution
(1) prepared by amination bletilla polysaccharide
A certain amount of bletilla polysaccharide is weighed in DMSO, 3h is dissolved by heating, 45 DEG C, is cooled to room temperature, adds excessive carbonyl Base diimidazole (CDI), room temperature reaction 3h is fully activated, and adds excessive ethylenediamine, is continued to stir 18h, it is fully reacted, Dialysis three days, is freezed standby;Bletilla polysaccharide and DMSO mol ratio are 5:106, the mass ratio of bletilla polysaccharide and carbonyl dimidazoles For 1:2, bletilla polysaccharide is 1 with ethylenediamine mol ratio:105
(2) CDI methods activation SiO2Surface hydroxyl
Particle diameter is weighed for 30nmSiO2Washing for several times, adds a certain amount of anhydrous propanone and ensures water-less environment, adds excessive CDI reacts 2h, and anhydrous propanone cleans for several times, removes unnecessary CDI, dry;SiO2Mol ratio with CDI is 2:1.
(3)SiO2Surface mannose glycosylation modification
Weigh a certain amount of containing imidazole group SiO2With the DMSO solution containing amination bletilla polysaccharide, the amination bletilla striata Polysaccharide and imidazole group SiO2Mass ratio be 1:3, room temperature vortex concussion reaction 4h, that is, obtain glycosylating SiO2Bletilla polysaccharide Nano particle (hereinafter referred to as BSiNPs).
The particle diameter distribution of different size silicas before and after modification is detected by dynamic light scattering, is as a result shown after modification Nanoparticle size is distributed also without significant change without significant change.
Embodiment 3:Therapeutic actions of the KSiNPs/BSiNPs to mouse TNBS enteritis
Mouse TNBS colitis models are set up according to literature procedure, that is, take female BAl BIc/C mice 50, body weight 16- 18g, is randomly divided into 5 groups, fasting 24 hours, bowel lavage administration TNBS solution sets up TNBS colitis models by mouse.
12 hours before and after TNBS bowel lavage of the BALB/c mouse through 3mg/ml, bowel lavage administration, is grouped as follows respectively:
Blank control group:Poured into when model is set up 50% ethanol solution, bowel lavage be administered when feed physiological saline;
Model group:3mg/ml TNBS is poured into when model is set up, bowel lavage feeds physiological saline when being administered;
SKGM group:3mg/ml TNBS is poured into when model is set up, bowel lavage feeds KGM solution as control when being administered;
Bletilla polysaccharide group:3mg/ml TNBS is poured into when model is set up, bowel lavage feeds BSP solution as control when being administered;
SiO2Group:3mg/ml TNBS is poured into when model is set up, bowel lavage feeds the SiO of Isodose when being administered2Solution conduct Control;
KSiNPs groups:3mg/ml TNBS is poured into when model is set up, bowel lavage feeds KSiNP30 when being administered, and (embodiment 1 is made Standby, particle diameter is 30nm) (50mg/kg)
BSiNPs groups:3mg/ml TNBS is poured into when model is set up, bowel lavage feeds BSiNP30 when being administered, and (embodiment 2 is made Standby, particle diameter is 30nm) (50mg/kg)
It is three administrations in TNBS models, administered volume is 100 μ l.Mouse hair situation is observed after administration daily, Fecal character, weighs mouse weight, and record in detail, three days altogether.DAI standards of grading such as following table.If observing mouse weight, Mouse feeder is set up the 8th day to model.
(1) disease activity (DAI) scores
Observation mouse hair situation, fecal character, weighing mouse weight, and record in detail, three days altogether daily after administration. DAI standards of grading such as following table.
The DAI of table 1 integrates point-score
DAI scoring=(weight loss integration+excrement continuous integral+occult blood naked eyes blood integration)/3
(2) colon HE pathological sections score
Put to death animal within 3 days after model is set up, take mouse Colon, 4% formaldehyde fixes 12 hours, embedded section, H&E dyeing, Its pathological change of micro- sem observation, and scored.Standards of grading are as follows:
The mouse Colon HE pathological section standards of grading of table 2:
After TNBS bowel lavage modelings, there is obvious diarrhoea in mouse, body weight reduction, and the symptom such as have blood in stool, DAI scorings can be integrated State the disease severity of metrics evaluation mouse colitis.As shown in table 3, the DAI scorings of TNBS model mices and normal health Mouse contrast is notable to be risen, and SKGM nano particle (KSiNP30) and bletilla polysaccharide nano particle (BSiNP30) treatment can Effectively to alleviate enteritis symptom, reduction DAI scores, in addition SKGM, bletilla polysaccharide and SiO2Processing is to the no shadow of DAI scorings Ring.By histological score, we can be found that rarely seen a small amount of inflammatory cell infiltration in treatment group, and histological score is substantially less than TNBS model groups;And SKGM, bletilla polysaccharide and SiO2Individually processing has no influence to the histological scores of colon.Thus may be used See that KSiNPs and BSiNPs treatments can effectively alleviate the intestinal inflammatory of TNBS inductions.
The SKGM nano particle of table 3 treats TNBS colitis model mouse curative effects
Data are shown that significant difference is examined by ANOVA and determined in the form of mean+SD. Compared with model group, * represents P≤0.05
KSiNPs group treatment results are taken pictures such as Fig. 4, and control mice colon lengths are longer, without red and swollen phenomenon, without substantially other Inflammatory symptom.TNBS groups inflammatory symptom substantially, there is redness, the phenomenon that colon shortens.The inflammatory symptom of KGM groups is present, but does not have TNBS group inflammation is obvious, it may be possible to because KGM plays the role of to improve intestinal environment.Glycosylate SiO2SKGM nanometer Grain group (SiO2- KGM groups) to it is normal similar, without substantially red and swollen phenomenon.SiO is glycosylated as can be seen here2SKGM nano particle Truly have the effect for alleviating inflammation.
Embodiment 4:Therapeutic actions of the KSiNP30 to mouse Alcoholic gastric ulcer model
Mouse Alcoholic gastric ulcer model is set up according to literature procedure, that is, takes ICR male mices 50, body weight 20- 22g, 5 groups are randomly divided into by mouse, based on Alcoholic gastric ulcer model gastric infusion.
ICR mouse were through fasting in 24 hours, and gastric infusion, is grouped as follows respectively:,
Blank control group:Physiological saline is fed during gastric infusion;
Model group:Physiological saline is fed during gastric infusion;
SKGM group:KGM solution is fed during gastric infusion as control;
Bletilla polysaccharide group:BSP solution is fed during gastric infusion as control;;
SiO2Group:The SiO of Isodose is fed during gastric infusion2Solution is used as control;
KSiNPs groups:Gastric infusion feeds KSiNP30 (prepared by embodiment 1, particle diameter is 30nm) 50mg/kg.
BSiNPs groups:Gastric infusion feeds BSiNP30 (prepared by embodiment 2, particle diameter is 30nm) 50mg/kg.
After administration 4 hours, in addition to blank control group, 0.2ml/ absolute ethyl alcohol gavage of remaining each group observes mouse state And record, then put to death mouse;Orifice of the stomach is ligatured after execution, full stomach is taken out, fixes 1 hour, cleaned, visually observed with physiological saline Gastric ulcer situation, records ulcer index.Model group half mouse occur prostrate, tremble, movement disorder symptom;Body of stomach, which goes out, larger There is petechial hemorrhage in petechial hemorrhage or bleeding band, small part, it is seen that glandular stomach portion mucous membrane peony, there is substantially fair mass formed by blood stasis shape. KSiNPs has good protective effect under dosage used to mouse absolute ethyl alcohol model, and compared with blank control group has to ulcer Preferable inhibiting rate, can mitigate damaging action of the ethanol to stomach lining, and ulcer index is significantly lower than control group.It the results are shown in Table 4.
Influence of the SKGM nano particle of table 4 to mouse alcohol gastric ulcer
Data are shown that significant difference is examined by ANOVA and determined in the form of mean+SD. Compared with model group, * represents P≤0.05
Embodiment 5:KSiNP30 cuts off the therapeutic action of trauma model to mouse full thickness skin
Mouse skin wound healing is set up according to literature procedure:
A. C57 mouse are taken, yellow Jackets intraperitoneal anesthesia, back unhairing, sterilization makes a call to one with special card punch in mouse back Circular hole, cuts diameter 7mm, area average out to mm2Skin, be deep to subcutaneous, after hemostasis, take pictures and be designated as Day1, control group is with one Secondary property aseptic dressing patch wrapping, single cage is fed.
B. medicine is applied to wound by experimental group, then is wrapped up with the gauze for coating erythromycin ointment, and single cage is fed.
C. take a picture within 3 days, 5 days, 7 days, 9 days and 12 days after wound, then using the R Plus of U.S. Image-Pro zero Version6 (IPP) image analysis software measures the wound area of mouse sum.Healing rate=[(original surface of a wound area-do not heal wound Face area) the original surface of a wound areas of ÷] × 100%.
Take wound tissue, fixed, specimens paraffin embedding slices, HE dyeing and sirius red dyeing, observe the surface of a wound pathology and Cytologic characteristic.
Experiment is randomly divided into four groups:
Control group:Physiological saline is fed when smearing administration;
SKGM group:KGM solution is fed as control when smearing administration;
Bletilla polysaccharide group:BSP solution is fed as control when smearing administration;
SiO2Group:The SiO of Isodose is fed when smearing administration2Solution is used as control;
KSiNPs groups:KSiNPs (prepared by embodiment 1, particle diameter is 30nm) 5mg/ml is fed when smearing administration;
BSiNPs groups:BSiNPs (prepared by embodiment 1, particle diameter is 30nm) 5mg/ml is fed when smearing administration.
Smear after administration, erythromycin ointment smears wound, disposable sterilized dressing patch wrapping, single cage is raised, and observes mouse The change of the forward and backward body weight of modeling, fur, motion and feed.Pass through Wound healing rate, wound healing time and histopathology credit Analysis is used as directly effective Evaluation Criterion of Wound Healing.The result of wound healing is shown in Fig. 5, it is seen that pair of the healing rate of wound Than obvious, the wound healing speed of KSiNP groups is substantially accelerated compared with other several groups, illustrates that the nano particles of many saccharification can speed up wound Mouth healing.
The wound healing rate of the statistics of wound healing rate such as Fig. 6 and 7, KSiNPs group and BSiNPs groups has bright in wound early stage The aobvious effect for improving healing, illustrates that nanometer polysaccharide has the effect of promotion in wound healing.
The cytokine assay of embodiment 6
IL-10 is important suppression inflammatory factor, can alleviate inflammatory conditions, embodies the biology effect of nanometer polysaccharide Should.
Peritoneal macrophage is carried, is spread in 48 orifice plates, cell concentration is more than 80%, plus different sizes prepared by embodiment 1 KSiNPs nano particles (100ug/ml) stimulate 24 hours after receive sample, and set Control groups, ELISA kit detection IL- The inflammation-related factors such as 10, TNF-a.As a result Fig. 8 is seen, KSiNP30 is than control and the KSiNPs nano particle energy of other particle diameters Notable stimulating expression of macrophage secretes a large amount of suppressive genes IL-10.
BSiNP30, KSiNP30 and control SiO in above example 3-62Particle is by first using ethanol:Dd water=4: 1 cleaning three times, then with normal saline into certain suitable concn.By KSiNP30 (prepared by embodiment 1, particle diameter is 30nm) or SiO2Particle is dispersed in PBS solution, ultrasonic disperse before administration.The KGM of SKGM group and the BSP of bletilla polysaccharide group are then direct With preparing solutions for administration after ultraviolet irradiation.
In subsequent research, inventor has also investigated 10,100,500,1000nm KSiNPs and BSiNPs to colon Scorching, gastric ulcer and the curative effect of wound healing, have obtained the result being close with KSiNP30 and BSiNP30, certain KSiNPs and BSiNPs is significantly superior to KGM and BSP controls to colitis, gastric ulcer and the curative effect of wound healing, also has and be significantly superior to SiO2Control.

Claims (9)

1. a kind of glycosylated SiO of Glucomannan2Nano particle, it is characterised in that by Glucomannan and SiO2Pass through covalent bond phase The particle that the obtained particle diameter that connects is 10-1000nm;Described Glucomannan is selected from SKGM or bletilla polysaccharide.
2. the glycosylated SiO of Glucomannan according to claim 12Nano particle, it is characterised in that pass through different SiO2Chi The glycosylated SiO of very little control Glucomannan2The particle diameter of nano particle.
3. the glycosylated SiO of Glucomannan according to claim 12Nano particle, it is characterised in that make by the following method It is standby to obtain:
(1) amination Glucomannan is prepared;
(2) CDI methods activation SiO2Surface hydroxyl obtains the SiO containing imidazole group2
(3) by amidized Glucomannan and the SiO containing imidazole group2Reaction obtains the glycosylated SiO of Glucomannan2Nanometer Particle.
4. the glycosylated SiO of Glucomannan according to claim 32Nano particle, it is characterised in that make by the following method It is standby to obtain:
(1) prepared by amination Glucomannan:
Glucomannan is weighed in DMSO, 2~4h is dissolved by heating, 40~60 DEG C, is cooled to room temperature, adds the excessive miaow of carbonyl two Azoles CDI, 2~4h of room temperature reaction is fully activated, and adds excessive ethylenediamine, and continuing stirring makes it fully react, and dialyses, and freezes It is standby;Glucomannan and DMSO mol ratio are 1:106~1:108, the mass ratio of Glucomannan and carbonyl dimidazoles is 1:2~ 1:10, Glucomannan is 1 with ethylenediamine mol ratio:105~1:106
(2) CDI methods activation SiO2Surface hydroxyl
Weigh SiO2Particle is washed for several times, is added anhydrous propanone and is ensured water-less environment, SiO2The mol ratio of particle and anhydrous propanone is 1:40~1:50, add CDI and react 1~2h, anhydrous propanone cleans for several times, removes unnecessary CDI, dry;SiO2With CDI mole Than for 1:1~1:5;Described SiO2The diameter of particle is selected from 10,30,100,500 or 1000nm;
(3)SiO2Surface mannose glycosylation modification
Weigh containing imidazole group SiO2With the DMSO solution containing amination Glucomannan, amination Glucomannan and imidazole radicals Group SiO2Mass ratio be 1:1~1:3, room temperature vortex 2~4h of concussion reaction, that is, obtain the glycosylated SiO of Glucomannan2Nanometer Particle.
5. the glycosylated SiO of Glucomannan described in claim 12The preparation method of nano particle, it is characterised in that comprising following Step:
(1) amination Glucomannan is prepared;
(2) CDI methods activation SiO2Surface hydroxyl obtains the SiO containing imidazole group2
(3) by amidized Glucomannan and the SiO containing imidazole group2Reaction obtains the glycosylated SiO of Glucomannan2Nanometer Particle;
Described Glucomannan is selected from SKGM or bletilla polysaccharide.
6. preparation method according to claim 5, it is characterised in that be prepared by the following method and obtain:
(1) prepared by amination Glucomannan:
Glucomannan is weighed in DMSO, 2~4h is dissolved by heating, 40~60 DEG C, is cooled to room temperature, adds the excessive miaow of carbonyl two Azoles CDI, 2~4h of room temperature reaction is fully activated, and adds excessive ethylenediamine, and continuing stirring makes it fully react, and dialyses, and freezes It is standby;Glucomannan and DMSO mol ratio are 1:106~1:108, the mass ratio of Glucomannan and carbonyl dimidazoles is 1:2~ 1:4, Glucomannan is 1 with ethylenediamine mol ratio:105~1:106;
(2) CDI methods activation SiO2Surface hydroxyl
Weigh SiO2Particle is washed for several times, is added anhydrous propanone and is ensured water-less environment, SiO2The mol ratio of particle and anhydrous propanone is 1:40~1:50, add CDI and react 1~2h, anhydrous propanone cleans for several times, removes unnecessary CDI, dry;SiO2With CDI mole Than for 2:1~1:1;Described SiO2The diameter of particle is selected from 10,30,100,500 or 1000nm;
(3)SiO2Surface mannose glycosylation modification
Weigh containing imidazole group SiO2With the DMSO solution containing amination Glucomannan, amination Glucomannan and imidazole radicals Group SiO2Mass ratio be 1:1~1:3, room temperature vortex 2~4h of concussion reaction, that is, obtain the glycosylated SiO of Glucomannan2Nanometer Particle.
7. preparation method according to claim 6, it is characterised in that in step (3) after 2~4h of room temperature vortex concussion reaction Supernatant also is abandoned comprising centrifugation, then is cleaned repeatedly with deionization, centrifugation is until without unnecessary solvent, reagent, 37 DEG C of drying, in vacuum The step of kept dry.
8. the glycosylated SiO of Glucomannan described in claim 12Nano particle prepare treatment diseases associated with inflammation, gastric ulcer, Application in the medicine and/or medical dressing of wound healing.
9. application according to claim 8, it is characterised in that described diseases associated with inflammation includes:Colitis, chronic gastritis, Arthritis.
CN201710424892.1A 2017-06-06 2017-06-06 Glucomannan glycosylated SiO2 nano-particle and preparation method and application thereof Active CN107158406B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710424892.1A CN107158406B (en) 2017-06-06 2017-06-06 Glucomannan glycosylated SiO2 nano-particle and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710424892.1A CN107158406B (en) 2017-06-06 2017-06-06 Glucomannan glycosylated SiO2 nano-particle and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN107158406A true CN107158406A (en) 2017-09-15
CN107158406B CN107158406B (en) 2020-07-14

Family

ID=59825408

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710424892.1A Active CN107158406B (en) 2017-06-06 2017-06-06 Glucomannan glycosylated SiO2 nano-particle and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN107158406B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114276553A (en) * 2020-12-31 2022-04-05 南京工业大学 Monosaccharide functionalized organic nano soft ball and preparation method thereof
CN116333575A (en) * 2023-03-27 2023-06-27 上海云谈科技有限公司 Green multi-substrate universal rainproof and stain-resistant light-transmitting coating for solar power supply wireless communication system and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1709915A (en) * 2005-06-23 2005-12-21 南京大学医学院附属鼓楼医院 Polysaccharide material for promoting cell tactophily and preparation thereof
CN101002793A (en) * 2007-01-10 2007-07-25 南京大学 Application of polysaccharide of bletilla striata for preparing medicines to treat peptic ulcer
CN101249274A (en) * 2008-04-01 2008-08-27 南京大学 Preparation of bletilla striata polyose water gelatin of promoting wound healing and uses thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1709915A (en) * 2005-06-23 2005-12-21 南京大学医学院附属鼓楼医院 Polysaccharide material for promoting cell tactophily and preparation thereof
CN101002793A (en) * 2007-01-10 2007-07-25 南京大学 Application of polysaccharide of bletilla striata for preparing medicines to treat peptic ulcer
CN101249274A (en) * 2008-04-01 2008-08-27 南京大学 Preparation of bletilla striata polyose water gelatin of promoting wound healing and uses thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHAO WANG ET AL.: ""Preparation and Characterization of Konjac Glucomannan (KGM)/Sio2 Nanopaticles Blend Film"", 《ADVANCED MATERIALS RESEARCH》 *
ZHENZHEN WANG ET AL.: ""Specifically Formed Corona on Silica Nanoparticles Enhances Transforming Growth Factor β1 Activity in Triggering Lung Fibrosis"", 《ACS NANO》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114276553A (en) * 2020-12-31 2022-04-05 南京工业大学 Monosaccharide functionalized organic nano soft ball and preparation method thereof
CN114276553B (en) * 2020-12-31 2023-02-21 南京工业大学 Monosaccharide functionalized organic nano soft ball and preparation method thereof
CN116333575A (en) * 2023-03-27 2023-06-27 上海云谈科技有限公司 Green multi-substrate universal rainproof and stain-resistant light-transmitting coating for solar power supply wireless communication system and preparation method thereof
CN116333575B (en) * 2023-03-27 2024-03-26 上海云谈科技有限公司 Green multi-substrate universal rainproof and stain-resistant light-transmitting coating for solar power supply wireless communication system and preparation method thereof

Also Published As

Publication number Publication date
CN107158406B (en) 2020-07-14

Similar Documents

Publication Publication Date Title
Wang et al. Chitosan: Structural modification, biological activity and application
Hu et al. Formation of self-assembled polyelectrolyte complex hydrogel derived from salecan and chitosan for sustained release of Vitamin C
Jiang et al. Effect of chitosan oligosaccharide-conjugated selenium on improving immune function and blocking gastric cancer growth
Ullah et al. Natural and synthetic materials based cmch/PVA hydrogels for oxaliplatin delivery: Fabrication, characterization, in-vitro and in-vivo safety profiling
Kesavan et al. Ulvan loaded graphene oxide nanoparticle fabricated with chitosan and d-mannose for targeted anticancer drug delivery
CN105534957B (en) A kind of core-shell structure nanometer particle of reduction/enzyme/pH multiple responses drug release
Ye et al. Phosphorylation and anti-tumor activity of exopolysaccharide from Lachnum YM120
CN105816920A (en) Preparation method of modified sodium alginate embolization microspheres
JP2008260823A (en) Polysaccharide modified with selenious acid and its manufacturing method
EP1455802A1 (en) Chitosan oligosaccharides and uses thereof
CN112516323B (en) Preparation method of photo-crosslinked chitosan-methacrylic acid nanoparticle
CN108178803A (en) A kind of preparation of cinnamic acid-dextran polymer self-assembled nanometer grain for carrying medicine and its antitumor application thereof
CN107158406A (en) The glycosylated SiO of Glucomannan2Nano particle and its preparation method and application
JP4321007B2 (en) Polysaccharide complex and method for producing the same
CN101658484B (en) Preparation method and application of chitosan copolymer carrier micelle modified by cholesterol formyl chloride
Ostovar et al. Nanocomposite of chitosan/gelatin/carbon quantum dots as a biocompatible and efficient nanocarrier for improving the Curcumin delivery restrictions to treat brain cancer
CN104434792B (en) Polymer micelle and preparation method thereof and antineoplastic pharmaceutical compositions, preparation and preparation method thereof
Singh et al. Recent progress on modified gum katira polysaccharides and their various potential applications
Yuan et al. Evaluation and mechanism of immune enhancement effects of Pleurotus ferulae polysaccharides-gold nanoparticles
Verma et al. 1, 3-Beta-Glucans: Drug Delivery and Pharmacology
CN105860103A (en) Preparation method and application of novel nano hydrogel
Singha et al. Applications of alginate-based bionanocomposites in drug delivery
CN105056239B (en) The composite material and its preparation of functional mesoporous silicon dioxide carried drug and siRNA and the application in preparing anticancer drug
CN115252797A (en) Novel multifunctional nano-drug carrier, preparation method and application
CN107007555A (en) It is acylated the preparation and application of Glucomannan nano particle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20180223

Address after: No. 8, Ningguo City Economic and Technological Development Zone, Xuancheng, Anhui Province

Applicant after: NINGGUO WUYUE MEDICAL TECHNOLOGY CO.,LTD.

Address before: Qixia Xianlin Avenue District of Nanjing City, Jiangsu Province, Nanjing University No. 163 210023

Applicant before: Nanjing University

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20231101

Address after: 230601 First Floor, Building 2-A, Furong Road North, Economic and Technological Development Zone, Hefei City, Anhui Province

Patentee after: HEFEI DAMI MEDICAL SCIENCE & TECHNOLOGY Co.,Ltd.

Address before: No. 8 Chuangye Road, Ningguo Economic and Technological Development Zone, Xuancheng City, Anhui Province, 242300

Patentee before: NINGGUO WUYUE MEDICAL TECHNOLOGY CO.,LTD.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20231222

Address after: No. 88 Dong'an Road, Anzhen Street, Xishan District, Wuxi City, Jiangsu Province, 214104

Patentee after: Wuxi Kanghe Qingyuan Biotechnology Co.,Ltd.

Address before: 230601 First Floor, Building 2-A, Furong Road North, Economic and Technological Development Zone, Hefei City, Anhui Province

Patentee before: HEFEI DAMI MEDICAL SCIENCE & TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right