CN117018298A - 一种降解时间可控的可注射多孔微球及其制备方法和应用 - Google Patents
一种降解时间可控的可注射多孔微球及其制备方法和应用 Download PDFInfo
- Publication number
- CN117018298A CN117018298A CN202311293917.0A CN202311293917A CN117018298A CN 117018298 A CN117018298 A CN 117018298A CN 202311293917 A CN202311293917 A CN 202311293917A CN 117018298 A CN117018298 A CN 117018298A
- Authority
- CN
- China
- Prior art keywords
- microspheres
- injectable porous
- buffer solution
- injectable
- degradation time
- 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
Links
- 239000004005 microsphere Substances 0.000 title claims abstract description 98
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 28
- 230000015556 catabolic process Effects 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims description 14
- 239000000243 solution Substances 0.000 claims abstract description 50
- 239000012074 organic phase Substances 0.000 claims abstract description 24
- 239000007853 buffer solution Substances 0.000 claims abstract description 19
- 239000000839 emulsion Substances 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 239000008346 aqueous phase Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 238000004945 emulsification Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 108010035532 Collagen Proteins 0.000 claims abstract description 10
- 102000008186 Collagen Human genes 0.000 claims abstract description 10
- 230000004663 cell proliferation Effects 0.000 claims abstract description 10
- 229920001436 collagen Polymers 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 9
- 238000000338 in vitro Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 230000001804 emulsifying effect Effects 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- -1 liquid paraffin Substances 0.000 claims description 25
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 11
- 239000012620 biological material Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 8
- 239000004094 surface-active agent Substances 0.000 claims description 8
- KIUKXJAPPMFGSW-DNGZLQJQSA-N (2S,3S,4S,5R,6R)-6-[(2S,3R,4R,5S,6R)-3-Acetamido-2-[(2S,3S,4R,5R,6R)-6-[(2R,3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 KIUKXJAPPMFGSW-DNGZLQJQSA-N 0.000 claims description 7
- 239000012459 cleaning agent Substances 0.000 claims description 7
- 229920002674 hyaluronan Polymers 0.000 claims description 7
- 229960003160 hyaluronic acid Drugs 0.000 claims description 7
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- 229940117986 sulfobetaine Drugs 0.000 claims description 6
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- 229920001661 Chitosan Polymers 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- 238000001727 in vivo Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- BGHCVCJVXZWKCC-UHFFFAOYSA-N tetradecane Chemical compound CCCCCCCCCCCCCC BGHCVCJVXZWKCC-UHFFFAOYSA-N 0.000 claims description 4
- 108010010803 Gelatin Proteins 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 230000017423 tissue regeneration Effects 0.000 claims description 3
- PSBDWGZCVUAZQS-UHFFFAOYSA-N (dimethylsulfonio)acetate Chemical compound C[S+](C)CC([O-])=O PSBDWGZCVUAZQS-UHFFFAOYSA-N 0.000 claims description 2
- TYTGWHZODQKWEF-UHFFFAOYSA-N 1-o-dodecyl 4-o-sulfo butanedioate Chemical compound CCCCCCCCCCCCOC(=O)CCC(=O)OS(O)(=O)=O TYTGWHZODQKWEF-UHFFFAOYSA-N 0.000 claims description 2
- SXGZJKUKBWWHRA-UHFFFAOYSA-N 2-(N-morpholiniumyl)ethanesulfonate Chemical compound [O-]S(=O)(=O)CC[NH+]1CCOCC1 SXGZJKUKBWWHRA-UHFFFAOYSA-N 0.000 claims description 2
- DVLFYONBTKHTER-UHFFFAOYSA-N 3-(N-morpholino)propanesulfonic acid Chemical compound OS(=O)(=O)CCCN1CCOCC1 DVLFYONBTKHTER-UHFFFAOYSA-N 0.000 claims description 2
- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 claims description 2
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 2
- 229920001817 Agar Polymers 0.000 claims description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- 229920002101 Chitin Polymers 0.000 claims description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 2
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 claims description 2
- 108010049003 Fibrinogen Proteins 0.000 claims description 2
- 102000008946 Fibrinogen Human genes 0.000 claims description 2
- 108010067306 Fibronectins Proteins 0.000 claims description 2
- 102000016359 Fibronectins Human genes 0.000 claims description 2
- AZKVWQKMDGGDSV-BCMRRPTOSA-N Genipin Chemical compound COC(=O)C1=CO[C@@H](O)[C@@H]2C(CO)=CC[C@H]12 AZKVWQKMDGGDSV-BCMRRPTOSA-N 0.000 claims description 2
- 108090000288 Glycoproteins Proteins 0.000 claims description 2
- 102000003886 Glycoproteins Human genes 0.000 claims description 2
- 108010085895 Laminin Proteins 0.000 claims description 2
- 102000007547 Laminin Human genes 0.000 claims description 2
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 2
- NQTADLQHYWFPDB-UHFFFAOYSA-N N-Hydroxysuccinimide Chemical compound ON1C(=O)CCC1=O NQTADLQHYWFPDB-UHFFFAOYSA-N 0.000 claims description 2
- 235000019483 Peanut oil Nutrition 0.000 claims description 2
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 108010067787 Proteoglycans Proteins 0.000 claims description 2
- 102000016611 Proteoglycans Human genes 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 claims description 2
- 108060008539 Transglutaminase Proteins 0.000 claims description 2
- 239000007983 Tris buffer Substances 0.000 claims description 2
- 239000008272 agar Substances 0.000 claims description 2
- 229940072056 alginate Drugs 0.000 claims description 2
- 235000010443 alginic acid Nutrition 0.000 claims description 2
- 229920000615 alginic acid Polymers 0.000 claims description 2
- 125000005210 alkyl ammonium group Chemical group 0.000 claims description 2
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 2
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 2
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 2
- 229960003237 betaine Drugs 0.000 claims description 2
- 238000004113 cell culture Methods 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000007979 citrate buffer Substances 0.000 claims description 2
- 229940098691 coco monoethanolamide Drugs 0.000 claims description 2
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 2
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 2
- 125000005442 diisocyanate group Chemical group 0.000 claims description 2
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 claims description 2
- 230000007515 enzymatic degradation Effects 0.000 claims description 2
- DBLXOVFQHHSKRC-UHFFFAOYSA-N ethanesulfonic acid;2-piperazin-1-ylethanol Chemical compound CCS(O)(=O)=O.OCCN1CCNCC1 DBLXOVFQHHSKRC-UHFFFAOYSA-N 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 229940012952 fibrinogen Drugs 0.000 claims description 2
- AZKVWQKMDGGDSV-UHFFFAOYSA-N genipin Natural products COC(=O)C1=COC(O)C2C(CO)=CCC12 AZKVWQKMDGGDSV-UHFFFAOYSA-N 0.000 claims description 2
- 125000005456 glyceride group Chemical group 0.000 claims description 2
- 229940070765 laurate Drugs 0.000 claims description 2
- 229940071180 lauryl sulfosuccinate Drugs 0.000 claims description 2
- 229940057995 liquid paraffin Drugs 0.000 claims description 2
- 108010082117 matrigel Proteins 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- 239000004006 olive oil Substances 0.000 claims description 2
- 235000008390 olive oil Nutrition 0.000 claims description 2
- 239000000312 peanut oil Substances 0.000 claims description 2
- 239000008055 phosphate buffer solution Substances 0.000 claims description 2
- 229920000136 polysorbate Polymers 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 2
- 229940100515 sorbitan Drugs 0.000 claims description 2
- 239000003549 soybean oil Substances 0.000 claims description 2
- 235000012424 soybean oil Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 229950011008 tetrachloroethylene Drugs 0.000 claims description 2
- 102000003601 transglutaminase Human genes 0.000 claims description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 2
- 238000012377 drug delivery Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 8
- 230000012292 cell migration Effects 0.000 abstract description 6
- 230000021164 cell adhesion Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 210000002808 connective tissue Anatomy 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 3
- 108090000790 Enzymes Proteins 0.000 abstract description 2
- 102000004190 Enzymes Human genes 0.000 abstract description 2
- 238000013508 migration Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000012805 post-processing Methods 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 238000002347 injection Methods 0.000 description 14
- 238000002474 experimental method Methods 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 8
- 210000001519 tissue Anatomy 0.000 description 5
- 241001465754 Metazoa Species 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000007490 hematoxylin and eosin (H&E) staining Methods 0.000 description 3
- 229920001432 poly(L-lactide) Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 102000029816 Collagenase Human genes 0.000 description 2
- 108060005980 Collagenase Proteins 0.000 description 2
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 2
- 241000283977 Oryctolagus Species 0.000 description 2
- 238000010609 cell counting kit-8 assay Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229960002424 collagenase Drugs 0.000 description 2
- 230000003013 cytotoxicity Effects 0.000 description 2
- 231100000135 cytotoxicity Toxicity 0.000 description 2
- 210000004207 dermis Anatomy 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 239000007758 minimum essential medium Substances 0.000 description 2
- 229920001610 polycaprolactone Polymers 0.000 description 2
- 239000004632 polycaprolactone Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000012679 serum free medium Substances 0.000 description 2
- 210000003491 skin Anatomy 0.000 description 2
- 229940124597 therapeutic agent Drugs 0.000 description 2
- 239000007762 w/o emulsion Substances 0.000 description 2
- KOVPXZDUVJGGFU-UHFFFAOYSA-N 8-methoxy-8-oxooctanoic acid Chemical compound COC(=O)CCCCCCC(O)=O KOVPXZDUVJGGFU-UHFFFAOYSA-N 0.000 description 1
- 229920000936 Agarose Polymers 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Polymers OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 108010019160 Pancreatin Proteins 0.000 description 1
- 229920000954 Polyglycolide Polymers 0.000 description 1
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003124 biologic agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000002950 fibroblast Anatomy 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000003102 growth factor Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000028709 inflammatory response Effects 0.000 description 1
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000879 optical micrograph Methods 0.000 description 1
- 229940055695 pancreatin Drugs 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- BHTJEPVNHUUIPV-UHFFFAOYSA-N pentanedial;hydrate Chemical compound O.O=CCCCC=O BHTJEPVNHUUIPV-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/56—Porous materials, e.g. foams or sponges
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/1605—Excipients; Inactive ingredients
- A61K9/1629—Organic macromolecular compounds
- A61K9/1652—Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/1605—Excipients; Inactive ingredients
- A61K9/1629—Organic macromolecular compounds
- A61K9/1658—Proteins, e.g. albumin, gelatin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/19—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles lyophilised, i.e. freeze-dried, solutions or dispersions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/20—Polysaccharides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/22—Polypeptides or derivatives thereof, e.g. degradation products
- A61L27/222—Gelatin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/22—Polypeptides or derivatives thereof, e.g. degradation products
- A61L27/24—Collagen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/58—Materials at least partially resorbable by the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/06—Flowable or injectable implant compositions
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Dermatology (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pharmacology & Pharmacy (AREA)
- Dispersion Chemistry (AREA)
- Biophysics (AREA)
- Medicinal Preparation (AREA)
Abstract
本发明公开了一种可注射多孔微球,所述可注射多孔微球的体外酶降解时间为24‑48h,且通过以下步骤制备:步骤1,将底物和与缓冲溶液或去离子水充分混合得到预混液;步骤2,配制有机相溶液并进行预冷;步骤3,将步骤1得到的预混液与交联剂混合得到水相溶液;将所述水相溶液加入有机相溶液中进行搅拌乳化,得到W/O型的乳液,然后进行乳化反应;步骤4,后处理得到所需的微球;步骤5,将步骤4所述微球洗涤、干燥,即可得到所述可注射多孔微球。本发明的可注射多孔微球成分安全、能够促进细胞黏附、增殖和迁移,刺激自身组织细胞修复,从而产生新的胶原蛋白和其他结缔组织胶原,修复自身组织细胞且效果维持时间可控的微球材料具有重要意义。
Description
技术领域
本发明涉及生物材料技术领域,特别是涉及一种降解时间可控的可注射多孔微球及其制备方法和应用。
背景技术
微球在生物医学应用中有着广泛的前景,其应用范围包括细胞和药物的治疗递送及组织修复、填充。微球通常以注射的方式用于生物制剂的微创递送,如:可以在悬浮液中配制以递送治疗剂,也可以负载细胞、生长因子等后再注射至病灶部位,以形成促进细胞渗透的微孔支架,并使负载的细胞及因子快速浸润至局部,促进组织快速修复并减轻局部炎症反应。此外,注射类微球因操作灵活简便且治疗时间短、术后无明显可见痕迹、治疗后效果较为明显、术后恢复快等特点在组织填充领域也占据了大量的市场。
根据注射填充材料的性质来源,可以将其分为三类:生物材料、非生物材料及混合材料。其中,非生物材料多为人工合成的生物医用高分子,如:聚左旋乳酸(PLLA)、聚乙丙交酯(PLGA)、聚己内酯(PCL)等,但这些高分子材料存在诸如制备过程中尺寸及形态难控、细胞黏附性差、对注射技术要求高,部分产品起效较慢,成本高等问题。生物材料通常为透明质酸、琼脂糖等,这类材料的维持效果时间较短,需要长期持续使用才能维持效果。公告号为CN109010910B的专利文献公开了一种可注射的PLLA微球,但是未能解决微球形态难控的问题。公告号为CN113663126A的专利文献公开了一种透明质酸/壳聚糖微球,但是过于光滑的表面不利于细胞黏附增殖,仅能起到支撑填充的效果 。
发明内容
本发明的目的是针对现有技术中微球的粘附性差、降解时间不可控以及维持效果时间较短等问题,而提供一种降解时间可控的可注射多孔微球。
本发明的另一目的,提供一种所述可注射多孔微球的制备方法。
本发明的另一目的,提供一种所述可注射多孔微球的应用。
为实现本发明的目的所采用的技术方案是:
一种降解时间可控的可注射多孔微球,所述可注射多孔微球的体外酶降解时间至少为24小时,且通过以下步骤制备:
步骤1,将生物材料和与缓冲溶液或去离子水充分混合得到预混液;
步骤2,将表面活性剂和有机溶剂配制成有机相溶液并进行预冷;
步骤3,乳液的制备:将步骤1得到的预混液与交联剂混合得到水相溶液;将所述水相溶液加入有机相溶液中进行搅拌乳化,得到W/O型的乳液,然后将W/O型的乳液置于低温避光环境下进行乳化反应;
步骤4,待步骤3乳化反应完毕后,选用筛网将所述乳液的有机相滤除得到所需粒径范围内的微球;
步骤5,将步骤4所述微球用清洗剂充分洗涤,然后进行干燥,即可得到所述可注射多孔微球。
在上述技术方案中,所述生物材料为胶原蛋白、蛋白多糖、糖蛋白、明胶、明胶衍生物、甲壳素、壳聚糖、淀粉、琼脂、纤维素及其衍生物、藻酸盐及其衍生物、透明质酸、纤维蛋白原、层连接蛋白、纤维连接蛋白和基质胶中的至少一种;
所述缓冲溶液为硼酸盐缓冲液、磷酸盐缓冲液、柠檬酸盐缓冲液、碳酸盐缓冲液、2-(N-吗啡啉)乙磺酸缓冲液、3-吗啉丙磺酸缓冲液、三羟甲基氨基甲烷缓冲液、4-羟乙基哌嗪乙磺酸缓冲液和醋酸缓冲液中的至少一种。
在上述技术方案中,所述有机溶剂为氢氟醚、四氯化碳、石油醚、环己烷、液态石蜡、大豆油、橄榄油、花生油、三氯甲烷、二氯甲烷和四氯乙烯中的至少一种;
所述表面活性剂为烷基硫酸盐、烷基醚硫酸盐、烷基/芳基磺酸盐、烯烃磺酸盐、磺基琥珀酸酯、烷基铵盐类表面活性剂、十二烷基乙氧基磺基甜菜碱、十二烷基羟丙基磺基甜菜碱、十二烷基二甲基磺丙基甜菜碱、十四烷酰胺丙基羟丙基磺基甜菜碱、椰油酸单乙醇酰胺、失水山梨醇脂肪酸酯、脂肪酸甘油酯、脂肪酸钾皂、月桂酸酯、月桂基磺化琥珀酸单酯二钠、烷基酚聚氧乙烯醚、高碳脂肪醇聚氧乙烯醚、司班、PO-500、单油酸酯和吐温中的至少一种。
在上述技术方案中,所述交联剂为二乙烯基苯、二异氰酸酯,N-羟基琥珀酰亚胺、N,N-亚甲基双丙烯酰胺,甲醛、戊二醛、乙酸酐、二缩水甘油基乙醚、辛二亚氨酸甲酯、1-(3-二甲氨基丙基)-3-乙基碳二亚胺盐酸盐、氯化钙、四甲基乙二胺、硫酸铵、京尼平和转谷酰胺酶中的至少一种。
在上述技术方案中,所述步骤3中搅拌乳化的搅拌转速为100-1500 rpm,搅拌乳化的时间为10-60min。
在上述技术方案中,所述步骤3中搅拌反应的时间为10-48小时,所述低温避光的温度为-80℃--5℃。
在上述技术方案中,所述清洗剂为丙酮、无水硫酸铜、氯化钙、硫酸钠、无水乙醇、医用酒精、氢氟醚、烷基苯磺酸钠、脂肪醇硫酸钠、三聚磷酸钠和去离子水中的至少一种。
在上述技术方案中,所述可注射多孔微球的细胞增殖率不小于169%;
所述可注射降解微球的体内降解时间为12-36周。
本发明的另一方面,提供一种所述的可注射多孔微球的制备方法,包括以下步骤:
步骤1,将生物材料和与缓冲溶液或去离子水充分混合得到预混液;
步骤2,将表面活性剂和有机溶剂配制成有机相溶液并进行预冷;
步骤3,乳液的制备:将步骤1得到的预混液与交联剂混合得到水相溶液;将所述水相溶液加入有机相溶液中进行搅拌乳化,得到W/O型的乳液,然后将W/O型的乳液置于低温避光环境下进行乳化反应;
步骤4,待步骤3乳化反应完毕后,选用筛网将所述乳液的有机相滤除得到所需粒径范围内的微球;
步骤5,将步骤4所述微球用清洗剂充分洗涤,然后进行干燥,即可得到所述可注射多孔微球。
本发明的另一方面,提供一种所述的注射多孔微球药物缓释、组织修复、组织工程、医美填充或细胞培养中的应用。
与现有技术相比,本发明的有益效果是:
1.本发明的可注射多孔微球成分安全、能够促进细胞黏附、增殖和迁移,刺激自身组织细胞修复,从而产生新的胶原蛋白和其他结缔组织胶原,修复自身组织细胞且效果维持时间可控的微球材料具有重要意义。
2.本发明创造性的发现通过调整可注射多孔微球制备过程中交联剂的用量可以调整可注射多孔微球的降解时间,扩展了可注射多孔微球的应用场景。
3.本发明的可注射多孔微球具有良好的细胞增殖率,细胞增殖率不低于169%,部分材料可以高达200%。
附图说明
图1为本发明实施例1-6的可注射多孔微球的光学显微镜照片,其中,图1A-1F分别为实施例1-实施例6的可注射多孔微球。
图2为本发明实施例2的可注射多孔微球的扫描电镜照片。
图3为本发明实施例2的可注射多孔微球的细胞迁移实验的微球光学显微镜照片,其中,图3A为0h空白对照组照片,图3B为0h实施例2的可注射多孔微球的照片,图3C为24h空白对照组照片,图3D为24h实施例2的可注射多孔微球的照片。
图4为本发明实施例2、4、5及空白对照组的动物实验注射皮丘日常观察图片。
图5为本发明实施例2、4、5及空白对照组的第12周动物实验HE染色切片结果,其中,图5A-5B为实施例2的可注射多孔微球,图5C-5D为实施例4的可注射多孔微球,图5E-5F为实施例5的可注射多孔微球,图5G-5H为空白对照组。
具体实施方式
以下结合具体实施例对本发明作进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
实施例1
步骤1,水相溶液的配制
称量0.35 g的透明质酸以及1.05 g明胶粉末,使用35 mL去离子水充分溶解。
步骤2,有机相溶液的配制
将三氯甲烷和石油醚以体积比2:1混合均匀后再加入终浓度6%v/v (ml/ml)吐温80,继续搅拌混合均匀。随后将有机相溶液转移到-40℃制冷机中预冷5小时。
步骤3,乳液的制备
1)将预冷好的有机相溶液转移至低温反应搅拌器中,并设置搅拌器的转速为800rpm。
2)将0.042 mL(0.12%)的戊二醛水溶液加入至水相溶液中并迅速震荡混合均匀。
3)将混合好的水相溶液迅速加入至低温搅拌器中,其中水相与有机相的体积比为1:10,以800 rpm的转速充分搅拌15 分钟得到稳定的油包水乳液,后可将搅拌转速降低至100 rpm。
4)在-20℃条件下继续反应16小时即可得到所需微球。
步骤4,微球的后处理,反应完毕,选用目数为100-200目的筛网将有机相溶液滤除,得到固体微球。
步骤5,使用清洗剂丙酮对微球进行清洗以去除表面的有机相溶液,共计清洗3次。再将经丙酮清洗过3次的微球进行去离子水洗,共计5次。将清洗过的微球置于液氮中冷冻,随后移至冷冻干燥机内进行冻干操作48小时,最后得到粒径分布均匀的所述可注射多孔微球。
实施例2
本实施例与实施例1的区别在于,底物选用胶原蛋白,称量1.645 g的胶原蛋白粉末,使用35 mL去离子水充分溶解。
实施例3
本实施例与实施例2的区别在于,本实施例将0.12%戊二醛水溶液替换为0.33%戊二醛水溶液,其余步骤与实施例2保持一致。
实施例4
本实施例与实施例2的区别在于,本实施例将0.12%戊二醛水溶液替换为0.54%戊二醛水溶液,其余步骤与实施例2保持一致。
实施例5
本实施例与实施例2的区别在于,本实施例将0.12%戊二醛水溶液替换为0.76%戊二醛水溶液,其余步骤与实施例2保持一致。
实施例6
步骤1,水相溶液的配制
称量0.175 g的壳聚糖粉末、0.105 g胶原蛋白粉末,使用35 mL浓度为0.2 mol/L的醋酸溶液充分溶解。
步骤2,有机相溶液的配制
将四氯化碳和石油醚以体积比3:1混合均匀后再加入终浓度10%v/v (ml/ml)司班80,继续搅拌混合均匀。随后将有机相溶液转移到-40℃制冷机中预冷5小时。
步骤3,乳液的制备
1)将预冷好的有机相溶液转移至低温反应搅拌器中,并设置搅拌器的转速为1000rpm。
2)将0.4%的戊二醛水溶液加入至水相溶液中并迅速震荡混合均匀。
3)将混合好的水相溶液迅速加入至低温搅拌器中,其中水相与有机相的体积比为1:15,以1000 rpm的转速充分搅拌20分钟得到稳定的油包水乳液,后可将搅拌转速降低至200 rpm。
4)在-20℃条件下继续反应16小时即可得到所需微球。
步骤4、步骤5与实施例1保持一致。
实施例7
对实施例1-6得到的可注射多孔微球进行了表征测试:
7.1光学显微镜下可注射多孔微球的形态
如图1所示,实施例1-6所制备的微球均粒径均匀、形态良好。如图2所示,实施例2所制备的可注射多孔微球呈球形多孔结构。
7.2过针后形态及粒径统计以及体外降解实验
可注射多孔微球微球过30G针后形态及粒径统计:分别测试实施例1-6的微球在生理盐水中浸泡60 min后能否通过30G针头并统计粒径分布。
可注射多孔微球微球的体外降解实验:分别取实施例1-6微球样品0.036g,加入20U/ml的胰酶或胶原酶(本实施例中选用I型胶原酶溶液)3ml,混匀。将各样品管放入37℃恒温箱内降解,在降解反应开始后的60min、120min、180min、240min、360min、480min、24h、48h、72h时间点处取样,并在光学显微镜下观察,当在显微镜下无明显球形样品后即视为降解完全,结果详见表1。
7.3体外细胞毒性实验
将经过25 kGy辐照灭菌的微球制备成100 mg/3.7 mL 最低必需培养基培养基(MEM培养基,额外加5% FBS,1% Gln)的浸提液,浸提条件:(37±1) ℃,(24±2) h。使用40μm细胞筛收获1ml浸提液。将小鼠成纤维细胞(L929)置于培养基中增殖培养2-3天,然后以每孔1×104个细胞的浓度转移至96孔板中。继续培养24h后观察细胞粘附情况。当L929的生长密度达到90%后,将实施例2-5及对比例1的微球浸提液与细胞一起孵育24h。将CellCounting Kit-8(CCK-8)试剂加入孔板中,再孵育1-4h。最后,通过酶标仪测量450nm波长处的光密度(OD)值,可以间接定量活细胞的数量,反映细胞的活力。结果详见表1,如表1所示,实施例1-6所制备的微球在过针后未出现明显变形,且粒径未随浸泡时间的增长发生明显变化;实施例1-6所制备微球能够促进细胞增殖,细胞毒性为0级,并且实施例2-5的体外降解时间的不同证明通过调整交联剂用量可以达到可注射多孔微球可以控制填充注射效果的时间的目的,其次,实施例1-6的可注射多孔微球的细胞增殖率均超过150%,且实施例1和5的可注射多孔微球的细胞增殖率超过200%。
表1过针后形态及粒径统计以及体外降解实验结果表
7.4细胞迁移实验
按每孔约(5-15)×105个播种细胞,培养1-2天后生长密度达到90%。后用marker笔用直尺在孔板底部画3条横线,用10 μL枪头比着直尺垂直对准孔板,向下轻推纵向划线形成划痕,用PBS漂洗细胞3次,去除划除的细胞,在样品组加入2 ml无血清培养基配制的实施例2微球样品(1mg/ml),空白对照组只加入无血清培养基。置于37℃,5% CO2培养箱培养,于0h、24h后,以横向和纵向划线的交点为核心,在10倍显微镜下进行观察。如图3所示,空白对照组无明显细胞迁移,实施例2的样品组在24h的孵育后出现了明显的细胞迁移现象。
动物实验:选择实施例1-3作为样品组,透明质酸溶液作为对照组。挑选新西兰兔,将背部毛发剃干净,沿中轴线左右两侧各标记10个注射点,在20个部位分别注入不同材料约0.2 mL,使注射部位形成隆起的皮丘。注射填充部位在新西兰兔的浅表层,注射填充时注意层次的一致性。每天观察皮球的突起,并进行拍照,记录每个皮丘消失的时间。1周、4周、12周、26周进行动物解剖,每个节点取2只,取组织切片利用苏木精-伊红染色法(HE染色法)进行病理学观察。其中,位点1代表实施例2,位点2代表实施例4,位点3代表实施例5,位点4代表对照组。
如图4所示,第0、4、12及26周对实施例2、4、5及对照组的注射皮丘位点观测,对照组(位点4)在第4周已经明显在体内降解完全,实施例2的微球注射皮丘位点(位点1)在第12周降解完全,实施例4的微球注射皮丘位点(位点2)在第26周降解完全,实施例5的微球注射皮丘位点(位点3)在第26周还存在微隆的小皮丘,在第36周完全降解,说明微球的不同工艺的微球在体内降解时间不同,即微球降解时间可控。
如图5所示,实施例2、4、5及对照组(仅注射透明质酸溶液)的第12周取样HE染色结果显示皮肤组织的表皮完整,结构清晰,并可见角化层;真皮层胶原纤维排列整齐;皮下组织位于真皮下方,由疏松结缔组织及肌层组成,未见明显异常。
以上所述仅是本发明的优选实施方式,应当指出的是,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
Claims (10)
1.一种降解时间可控的可注射多孔微球,其特征在于,所述可注射多孔微球的体外酶降解时间至少为24小时,且通过以下步骤制备:
步骤1,将生物材料和与缓冲溶液或去离子水充分混合得到预混液;
步骤2,将表面活性剂和有机溶剂配制成有机相溶液并进行预冷;
步骤3,乳液的制备:将步骤1得到的预混液与交联剂混合得到水相溶液;将所述水相溶液加入有机相溶液中进行搅拌乳化,得到W/O型的乳液,然后将W/O型的乳液置于低温避光环境下进行乳化反应;
步骤4,待步骤3乳化反应完毕后,选用筛网将所述乳液的有机相滤除得到所需粒径范围内的微球;
步骤5,将步骤4所述微球用清洗剂充分洗涤,然后进行干燥,即可得到所述可注射多孔微球。
2.如权利要求1所述的降解时间可控的可注射多孔微球,其特征在于,所述生物材料为胶原蛋白、蛋白多糖、糖蛋白、明胶、明胶衍生物、甲壳素、壳聚糖、淀粉、琼脂、纤维素及其衍生物、藻酸盐及其衍生物、透明质酸、纤维蛋白原、层连接蛋白、纤维连接蛋白和基质胶中的至少一种;
所述缓冲溶液为硼酸盐缓冲液、磷酸盐缓冲液、柠檬酸盐缓冲液、碳酸盐缓冲液、2-(N-吗啡啉)乙磺酸缓冲液、3-吗啉丙磺酸缓冲液、三羟甲基氨基甲烷缓冲液、4-羟乙基哌嗪乙磺酸缓冲液和醋酸缓冲液中的至少一种。
3.如权利要求1所述的降解时间可控的可注射多孔微球,其特征在于,所述有机溶剂为氢氟醚、四氯化碳、石油醚、环己烷、液态石蜡、大豆油、橄榄油、花生油、三氯甲烷、二氯甲烷和四氯乙烯中的至少一种;
所述表面活性剂为烷基硫酸盐、烷基醚硫酸盐、烷基/芳基磺酸盐、烯烃磺酸盐、磺基琥珀酸酯、烷基铵盐类表面活性剂、十二烷基乙氧基磺基甜菜碱、十二烷基羟丙基磺基甜菜碱、十二烷基二甲基磺丙基甜菜碱、十四烷酰胺丙基羟丙基磺基甜菜碱、椰油酸单乙醇酰胺、失水山梨醇脂肪酸酯、脂肪酸甘油酯、脂肪酸钾皂、月桂酸酯、月桂基磺化琥珀酸单酯二钠、烷基酚聚氧乙烯醚、高碳脂肪醇聚氧乙烯醚、司班、PO-500、单油酸酯和吐温中的至少一种。
4.如权利要求1所述的降解时间可控的可注射多孔微球,其特征在于,所述交联剂为二乙烯基苯、二异氰酸酯,N-羟基琥珀酰亚胺、N ,N-亚甲基双丙烯酰胺,甲醛、戊二醛、乙酸酐、二缩水甘油基乙醚、辛二亚氨酸甲酯、1-(3-二甲氨基丙基)-3-乙基碳二亚胺盐酸盐、氯化钙、四甲基乙二胺、硫酸铵、京尼平和转谷酰胺酶中的至少一种。
5.如权利要求1所述的降解时间可控的可注射多孔微球,其特征在于,所述步骤3中搅拌乳化的搅拌转速为100-1500 rpm,搅拌乳化的时间为10-60min。
6.如权利要求1所述的降解时间可控的可注射多孔微球,其特征在于,所述步骤3中搅拌反应的时间为10-48小时,所述低温避光的温度为-80℃--5℃。
7.如权利要求1所述的降解时间可控的可注射多孔微球,其特征在于,所述清洗剂为丙酮、无水硫酸铜、氯化钙、硫酸钠、无水乙醇、医用酒精、氢氟醚、烷基苯磺酸钠、脂肪醇硫酸钠、三聚磷酸钠和去离子水中的至少一种。
8.如权利要求1所述的降解时间可控的可注射多孔微球,其特征在于,所述可注射多孔微球的细胞增殖率不小于169%;
所述可注射降解微球的体内降解时间为12-36周。
9.一种如权利要求1-8任意一项所述的可注射多孔微球的制备方法,其特征在于,包括以下步骤:
步骤1,将生物材料和与缓冲溶液或去离子水充分混合得到预混液;
步骤2,将表面活性剂和有机溶剂配制成有机相溶液并进行预冷;
步骤3,乳液的制备:将步骤1得到的预混液与交联剂混合得到水相溶液;将所述水相溶液加入有机相溶液中进行搅拌乳化,得到W/O型的乳液,然后将W/O型的乳液置于低温避光环境下进行乳化反应;
步骤4,待步骤3乳化反应完毕后,选用筛网将所述乳液的有机相滤除得到所需粒径范围内的微球;
步骤5,将步骤4所述微球用清洗剂充分洗涤,然后进行干燥,即可得到所述可注射多孔微球。
10.一种如权利要求1-8任意一项所述的可注射多孔微球在药物缓释、组织修复、组织工程、医美填充或细胞培养中的应用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311293917.0A CN117018298B (zh) | 2023-10-09 | 2023-10-09 | 一种降解时间可控的可注射多孔微球及其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311293917.0A CN117018298B (zh) | 2023-10-09 | 2023-10-09 | 一种降解时间可控的可注射多孔微球及其制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN117018298A true CN117018298A (zh) | 2023-11-10 |
CN117018298B CN117018298B (zh) | 2023-12-26 |
Family
ID=88645245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311293917.0A Active CN117018298B (zh) | 2023-10-09 | 2023-10-09 | 一种降解时间可控的可注射多孔微球及其制备方法和应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN117018298B (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110212179A1 (en) * | 2008-10-30 | 2011-09-01 | David Liu | Micro-spherical porous biocompatible scaffolds and methods and apparatus for fabricating same |
CN113651989A (zh) * | 2020-05-12 | 2021-11-16 | 北京华龛生物科技有限公司 | 适用于细胞三维培养的微载体的制备方法及反应装置 |
CN115011542A (zh) * | 2021-12-07 | 2022-09-06 | 中科睿极(深圳)医学科技有限公司 | 多孔微载体及其制备方法 |
CN115521627A (zh) * | 2022-09-13 | 2022-12-27 | 大连理工大学 | 一种结构蛋白/透明质酸复合微纳米颗粒及颗粒水凝胶材料和应用 |
CN116077716A (zh) * | 2023-02-17 | 2023-05-09 | 海南百迈科医疗科技股份有限公司 | 一种用于血管栓塞的高弹性明胶海绵微球的制备方法 |
CN116284974A (zh) * | 2023-05-09 | 2023-06-23 | 中国海洋大学 | 一种用于3d细胞培养的大孔水凝胶微球及其制备方法 |
-
2023
- 2023-10-09 CN CN202311293917.0A patent/CN117018298B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110212179A1 (en) * | 2008-10-30 | 2011-09-01 | David Liu | Micro-spherical porous biocompatible scaffolds and methods and apparatus for fabricating same |
CN113651989A (zh) * | 2020-05-12 | 2021-11-16 | 北京华龛生物科技有限公司 | 适用于细胞三维培养的微载体的制备方法及反应装置 |
CN115011542A (zh) * | 2021-12-07 | 2022-09-06 | 中科睿极(深圳)医学科技有限公司 | 多孔微载体及其制备方法 |
CN115521627A (zh) * | 2022-09-13 | 2022-12-27 | 大连理工大学 | 一种结构蛋白/透明质酸复合微纳米颗粒及颗粒水凝胶材料和应用 |
CN116077716A (zh) * | 2023-02-17 | 2023-05-09 | 海南百迈科医疗科技股份有限公司 | 一种用于血管栓塞的高弹性明胶海绵微球的制备方法 |
CN116284974A (zh) * | 2023-05-09 | 2023-06-23 | 中国海洋大学 | 一种用于3d细胞培养的大孔水凝胶微球及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
CN117018298B (zh) | 2023-12-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20220073881A1 (en) | Compositions and methods for implantation of processed adipose tissue and processed adipose tissue products | |
Del Gaudio et al. | Induction of angiogenesis using VEGF releasing genipin-crosslinked electrospun gelatin mats | |
CN104582747B (zh) | 用于制造具有活细胞的水凝胶微粒的方法和用于制造组织工程支架的组合物 | |
US6991652B2 (en) | Tissue engineering composite | |
Kang et al. | Poly (lactic-co-glycolic acid) microspheres as an injectable scaffold for cartilage tissue engineering | |
CN102458496B (zh) | 用于制造组织工程用支架的组合物及其生产方法 | |
Henry et al. | Engineering the mechanical and biological properties of nanofibrous vascular grafts for in situ vascular tissue engineering | |
Biazar et al. | Types of neural guides and using nanotechnology for peripheral nerve reconstruction | |
AU2017219075B2 (en) | Muscle tissue regeneration using muscle fiber fragments | |
JP5963208B2 (ja) | 再生組織足場 | |
Filová et al. | A cell-free nanofiber composite scaffold regenerated osteochondral defects in miniature pigs | |
KR101027630B1 (ko) | 연골 재생용 다공성 히알루론산-콜라겐 천연 고분자 지지체의 제조방법 | |
Zhao et al. | Three-dimensional endothelial cell incorporation within bioactive nanofibrous scaffolds through concurrent emulsion electrospinning and coaxial cell electrospraying | |
KR20180047423A (ko) | 유무기 복합 - 다공성 생분해성 고분자 지지체 및 이의 제조방법 | |
CN110169959A (zh) | 生长因子缓释微球、组织工程软骨复合支架及制备方法 | |
MX2008015695A (es) | Andamios biomimeticos biomolecula-enlazados. | |
Hemmrich et al. | Biomaterials for adipose tissue engineering | |
CN104353111A (zh) | 一种用于腹壁缺损的生物修复材料及其制备方法 | |
JP2022534787A (ja) | ハイドロゲル微粒子の調整可能な分解 | |
Yang et al. | Double-modified bacterial cellulose/soy protein isolate composites by laser hole forming and selective oxidation used for urethral repair | |
CN112870439A (zh) | 核壳-串晶结构的纳米纤维骨组织工程支架及其制备方法 | |
CN117018298B (zh) | 一种降解时间可控的可注射多孔微球及其制备方法和应用 | |
Li et al. | L-polylactic acid porous microspheres enhance the mechanical properties and in vivo stability of degummed silk/silk fibroin/gelatin scaffold | |
CN104189954B (zh) | 一种原位固化组织工程支架及其制备方法 | |
Zhou | Curcumin-loaded porous scaffold: an anti-angiogenic approach to inhibit endochondral ossification |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |