CN111450258B - 一种促进蛋白药物跨黏液渗透的口服给药系统及其制备 - Google Patents
一种促进蛋白药物跨黏液渗透的口服给药系统及其制备 Download PDFInfo
- Publication number
- CN111450258B CN111450258B CN201910051170.5A CN201910051170A CN111450258B CN 111450258 B CN111450258 B CN 111450258B CN 201910051170 A CN201910051170 A CN 201910051170A CN 111450258 B CN111450258 B CN 111450258B
- Authority
- CN
- China
- Prior art keywords
- mesoporous silica
- drug
- protein
- mucus
- protein drug
- 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.)
- Active
Links
- 239000003814 drug Substances 0.000 title claims abstract description 58
- 229940079593 drug Drugs 0.000 title claims abstract description 52
- 102000004169 proteins and genes Human genes 0.000 title claims abstract description 39
- 108090000623 proteins and genes Proteins 0.000 title claims abstract description 39
- 210000003097 mucus Anatomy 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 230000001737 promoting effect Effects 0.000 title claims abstract description 12
- 239000012466 permeate Substances 0.000 title claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 106
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 47
- 239000002105 nanoparticle Substances 0.000 claims abstract description 21
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims abstract description 17
- 239000002888 zwitterionic surfactant Substances 0.000 claims abstract description 15
- IJFVSSZAOYLHEE-SSEXGKCCSA-N 1,2-dilauroyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCCCCCC IJFVSSZAOYLHEE-SSEXGKCCSA-N 0.000 claims abstract description 12
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 12
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 12
- KXGVEGMKQFWNSR-UHFFFAOYSA-N deoxycholic acid Natural products C1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 KXGVEGMKQFWNSR-UHFFFAOYSA-N 0.000 claims abstract description 12
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 12
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 12
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 32
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 claims description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 102000004877 Insulin Human genes 0.000 claims description 15
- 108090001061 Insulin Proteins 0.000 claims description 15
- 229940125396 insulin Drugs 0.000 claims description 15
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 230000005661 hydrophobic surface Effects 0.000 claims description 12
- 229960003964 deoxycholic acid Drugs 0.000 claims description 10
- KXGVEGMKQFWNSR-LLQZFEROSA-N deoxycholic acid Chemical compound C([C@H]1CC2)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 KXGVEGMKQFWNSR-LLQZFEROSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000012153 distilled water Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 7
- 239000004472 Lysine Substances 0.000 claims description 7
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000002244 precipitate Substances 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 6
- 108091003079 Bovine Serum Albumin Proteins 0.000 claims description 5
- 102000016943 Muramidase Human genes 0.000 claims description 5
- 108010014251 Muramidase Proteins 0.000 claims description 5
- 108010062010 N-Acetylmuramoyl-L-alanine Amidase Proteins 0.000 claims description 5
- 229940098773 bovine serum albumin Drugs 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229960000274 lysozyme Drugs 0.000 claims description 5
- 239000004325 lysozyme Substances 0.000 claims description 5
- 235000010335 lysozyme Nutrition 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 3
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000007764 o/w emulsion Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims 1
- 238000012377 drug delivery Methods 0.000 abstract description 27
- 238000011068 loading method Methods 0.000 abstract description 12
- 230000004048 modification Effects 0.000 abstract description 10
- 238000012986 modification Methods 0.000 abstract description 10
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 230000002496 gastric effect Effects 0.000 abstract description 3
- 231100000053 low toxicity Toxicity 0.000 abstract description 3
- BHQCQFFYRZLCQQ-UHFFFAOYSA-N (3alpha,5alpha,7alpha,12alpha)-3,7,12-trihydroxy-cholan-24-oic acid Natural products OC1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 BHQCQFFYRZLCQQ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004380 Cholic acid Substances 0.000 abstract description 2
- BHQCQFFYRZLCQQ-OELDTZBJSA-N cholic acid Chemical compound C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 BHQCQFFYRZLCQQ-OELDTZBJSA-N 0.000 abstract description 2
- 235000019416 cholic acid Nutrition 0.000 abstract description 2
- 229960002471 cholic acid Drugs 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000003837 high-temperature calcination Methods 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 14
- 210000004027 cell Anatomy 0.000 description 10
- 241000699670 Mus sp. Species 0.000 description 9
- 230000035699 permeability Effects 0.000 description 9
- 238000005406 washing Methods 0.000 description 9
- 230000000968 intestinal effect Effects 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 230000001376 precipitating effect Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 239000008280 blood Substances 0.000 description 5
- 210000001035 gastrointestinal tract Anatomy 0.000 description 5
- 239000002539 nanocarrier Substances 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 241000700159 Rattus Species 0.000 description 4
- 230000004700 cellular uptake Effects 0.000 description 4
- 206010012601 diabetes mellitus Diseases 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000003981 vehicle Substances 0.000 description 4
- 238000007112 amidation reaction Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000012154 double-distilled water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 210000002919 epithelial cell Anatomy 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 210000000683 abdominal cavity Anatomy 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000000981 epithelium Anatomy 0.000 description 2
- 239000012051 hydrophobic carrier Substances 0.000 description 2
- 230000002218 hypoglycaemic effect Effects 0.000 description 2
- 210000003405 ileum Anatomy 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 210000002490 intestinal epithelial cell Anatomy 0.000 description 2
- 210000000936 intestine Anatomy 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229940125395 oral insulin Drugs 0.000 description 2
- 210000001187 pylorus Anatomy 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000000813 small intestine Anatomy 0.000 description 2
- 235000020927 12-h fasting Nutrition 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 206010060708 Induration Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 238000012449 Kunming mouse Methods 0.000 description 1
- 108010019160 Pancreatin Proteins 0.000 description 1
- 229930182555 Penicillin Natural products 0.000 description 1
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- ZSJLQEPLLKMAKR-UHFFFAOYSA-N Streptozotocin Natural products O=NN(C)C(=O)NC1C(O)OC(CO)C(O)C1O ZSJLQEPLLKMAKR-UHFFFAOYSA-N 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 210000004534 cecum Anatomy 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 210000001198 duodenum Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- MHMNJMPURVTYEJ-UHFFFAOYSA-N fluorescein-5-isothiocyanate Chemical compound O1C(=O)C2=CC(N=C=S)=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 MHMNJMPURVTYEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003304 gavage Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000031891 intestinal absorption Effects 0.000 description 1
- 210000001630 jejunum Anatomy 0.000 description 1
- 239000002502 liposome Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000004213 low-fat Nutrition 0.000 description 1
- 230000004682 mucosal barrier function Effects 0.000 description 1
- 229940055695 pancreatin Drugs 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229940049954 penicillin Drugs 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229940024999 proteolytic enzymes for treatment of wounds and ulcers Drugs 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 239000012679 serum free medium Substances 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 208000000649 small cell carcinoma Diseases 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- ZSJLQEPLLKMAKR-GKHCUFPYSA-N streptozocin Chemical compound O=NN(C)C(=O)N[C@H]1[C@@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O ZSJLQEPLLKMAKR-GKHCUFPYSA-N 0.000 description 1
- 229960001052 streptozocin Drugs 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000002626 targeted therapy Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000000733 zeta-potential measurement Methods 0.000 description 1
Images
Classifications
-
- 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
- A61K38/28—Insulins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/54—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/54—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
- A61K47/543—Lipids, e.g. triglycerides; Polyamines, e.g. spermine or spermidine
- A61K47/544—Phospholipids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/69—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
- A61K47/6949—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
-
- 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
- A61K38/38—Albumins
- A61K38/385—Serum albumin
-
- 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
- A61K38/43—Enzymes; Proenzymes; Derivatives thereof
- A61K38/46—Hydrolases (3)
- A61K38/47—Hydrolases (3) acting on glycosyl compounds (3.2), e.g. cellulases, lactases
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y302/00—Hydrolases acting on glycosyl compounds, i.e. glycosylases (3.2)
- C12Y302/01—Glycosidases, i.e. enzymes hydrolysing O- and S-glycosyl compounds (3.2.1)
- C12Y302/01017—Lysozyme (3.2.1.17)
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Medicinal Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Diabetes (AREA)
- Molecular Biology (AREA)
- Nanotechnology (AREA)
- Endocrinology (AREA)
- Biophysics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biotechnology (AREA)
- Emergency Medicine (AREA)
- Medical Informatics (AREA)
- Hematology (AREA)
- Obesity (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Gastroenterology & Hepatology (AREA)
- Immunology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Medicinal Preparation (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
本发明属于生物医药领域,涉及一种促进蛋白药物跨黏液渗透的口服给药系统及其制备。具体涉及一种可促进蛋白药物跨胃肠道黏液层渗透的载药系统的制备及其在蛋白药物口服给药中的应用。所述载药系统的制备包括以下步骤:以十六烷基三甲基溴化铵为模板,正硅酸乙酯为硅源,苯乙烯为扩孔剂,经高温煅烧除模板,制得介孔二氧化硅载体;载体吸附装载蛋白药物后,以十八酸或胆酸将载药二氧化硅表面进行疏水化修饰,进一步利用疏水作用力与两性离子表面活性剂十二烷基甜菜碱或二月桂酰基卵磷脂形成自组装纳米粒。本发明可促进蛋白药物在胃肠道黏液层中渗透,提高药物跨膜吸收,并具有毒性低,载药量高等优势,在蛋白药物口给药送有着广阔的应用前景。
Description
技术领域
本发明属于生物医药领域,涉及一种促进蛋白药物跨黏液渗透的口服给药系统及其制备。
背景技术
蛋白药物因其药理活性高、特异性强、毒副作用小等优点,已被广泛应用于临床治疗各种疾病,目前临床上生物类药物的给药途径以注射为主,但该给药方式常伴随以下问题:1.注射伴随的疼痛使患者依从性减弱。2、注射剂型制备要求严苛,生产工序复杂、成本昂贵。3.反复注射造成注射部位硬结发炎等症状。同注射给药相比,口服给药顺应性更强,经济安全,是大多数药物首选的给药途径。但蛋白药物在口服给药时,易被胃肠道中的多种蛋白水解酶降解,同时蛋白药物的具有高分子量及低脂溶性,很难于胃肠道实现跨膜吸收,从而导致药物的口服生物利用度非常有限(<1%)。纳米技术的发展为实现蛋白药物口服给药提供了新的可能,目前已有相关将纳米载体(如脂质体,无机纳米载体等)用于蛋白药物口服递送的相关研究。
介孔二氧化硅具有以下的优势:1.具有有序的孔道结构、较高的比表面积和孔容积,孔径可调节。这些特性可实现蛋白药物的吸附装载,还可提高蛋白药物的稳定性。2.表面含有大量硅醇基,易实现功能化修饰,可广泛应用于药物控释、靶向治疗。3.毒性低、具有良好的生物相容性。
纳米载药系统的口服跨膜吸收效果与其与覆盖在肠上皮细胞表面的黏液层的相互作用密切相关。肠黏液处于持续快速更新中,可以迅速捕获并除去外来颗粒,特别是具有阳离子和疏水性外壳的粒子。近来,因黏液屏障导致纳米载体吸收度低这一问题已引起广泛关注。针对这一问题所提出得不同解决方案中,一种受病毒启发的黏液渗透颗粒(MPP)因具有亲水性和电中性表面作为“黏液惰性”屏障,可防止颗粒被黏液捕获,在黏液层中表现出优异的扩散能力。
然而,另一方面,跨黏液渗透和经小肠上皮吸收需要纳米载体具有不同的性质,亲水性的表面利于跨黏液渗透却可抑制纳米粒子与上皮细胞膜的相互作用,从而减少细胞的摄取。因此,设计用于口服递送的纳米载体应该既能快速透过黏液层的屏障,又能促进上皮的摄取。两性离子表面活性具有较强的亲水性,且生物相容性好,毒性低,故将两性离子表面活性剂包覆于纳米粒子的表面,可形成电中性亲水性外壳,在促进纳米粒子穿过黏液层的同时,自身可逐步脱落,进而暴露出经疏水化修饰的亲脂性介孔二氧化硅内核,从而增加上皮细胞的摄取。
综上所述,理想的口服蛋白药物给药系统应具备载药量高、可装载药物免受胃肠道酶降解,同时既可促进药物跨过黏液屏障,又可克服小肠上皮细胞吸收屏障。开发此种具有克服胃肠道多重生理屏障的新型载药系统,对于蛋白药物的口服临床应用具有重要的意义。
发明内容
本发明的目的是提供一种可促进蛋白药物口服吸收的载药系统,所述的可促进蛋白药物口服吸收的载药系统由表面疏水的介孔二氧化硅内核及可促进体系跨黏液层吸收的两性离子表面活性剂外层组成,表面疏水的介孔二氧化硅:蛋白药物:两性离子表面活性剂为1:0.5-2:0.5-2。
其中,所述的蛋白药物选自:胰岛素、溶菌酶、牛血清白蛋白。
所述的两性离子表面活性剂选自十二烷基甜菜碱或二月桂酰基卵磷脂。
本发明采用的制备技术方案如下:
(1)介孔二氧化硅纳米粒的制备;
(2)氨基化修饰的介孔二氧化硅的制备:
将介孔二氧化硅纳米粒分散于无水乙醇中,加入3-氨丙基三乙氧基硅烷,搅拌回流反应,得到氨基化修饰的介孔二氧化硅;
(3)表面疏水的介孔二氧化硅内核的制备:
将氨基化修饰的介孔二氧化硅分散于二甲基亚砜中,加入去氧胆酸或十八酸,加入催化剂EDC和NHS,反应得表面疏水的介孔二氧化硅内核;
(4)将制备的表面疏水的介孔二氧化硅、蛋白药物与两性离子表面活性剂溶于二甲基亚砜中,将该混合液滴加至蒸馏水,离心获得跨黏液渗透的口服给药系统——自组装纳米粒。
本发明所述的步骤(1)中的介孔二氧化硅纳米粒可以为本领域常用的介孔二氧化硅纳米粒,也可以是通过如下步骤制得的介孔二氧化硅纳米粒:
(a)在十六烷基三甲基溴化铵(CTAB)的水溶液中滴加正辛烷,搅拌配制形成水包油型乳液;
(b)将苯乙烯单体逐滴加入步骤(a)的体系中;
(c)在氮气保护条件下将赖氨酸,正硅酸乙酯及偶氮二异丁脒盐酸盐依次加入到步骤(b)的体系中;
(d)搅拌反应后将反应液自然冷却至室温,静置后离心分离;
(e)将沉淀物置于马弗炉中煅烧后研磨得到介孔二氧化硅纳米粒。
其中,
步骤(a)中十六烷基三甲基溴化铵水溶液的浓度为:1-5mg/mL;正辛烷:十六烷基三甲基溴化铵水溶液的体积比为0.3~0.8。
步骤(b)中苯乙烯与十六烷基三甲基溴化铵的体积比为1:9-1:19。
步骤(c)中正硅酸乙酯:赖氨酸:偶氮二异丁脒盐酸盐:十六烷基三甲基溴化铵的质量比为10:0.1-0.3:0.1-0.5:1。
步骤(d)中反应温度为20-80℃,反应时间为1-6小时。
步骤(2)中将制得的介孔二氧化硅纳米粒分散于无水乙醇中,加入3-氨丙基三乙氧基硅烷,搅拌回流反应3-20小时,冷却后离心,用无水乙醇洗涤沉淀,得到氨基化修饰的介孔二氧化硅;
其中,3-氨丙基三乙氧基硅烷与介孔二氧化硅纳米粒的质量比为2-4,反应温度为20-80℃。
步骤(3)中将氨基化修饰的介孔二氧化硅分散于二甲基亚砜中,加入去氧胆酸或十八酸,加入催化剂EDC和NHS,在20-80℃下反应12-48小时后离心并用无水乙醇洗涤沉淀即得表面疏水的介孔二氧化硅内核;
其中,二氧化硅与去氧胆酸或十八酸的质量比为2:1-1:2,二氧化硅:EDC:NHS比例为1:0.2-1:0.2-1。
步骤(4)中将制备的表面疏水的介孔二氧化硅、蛋白药物与两性离子表面活性剂溶于二甲基亚砜中,将该混合液滴加至蒸馏水,离心获得自组装纳米;
其中表面疏水的介孔二氧化硅:蛋白药物:两性离子表面活性剂为1:0.5-2:0.5-2;
所述的蛋白药物选自:胰岛素、溶菌酶、牛血清白蛋白。
所述的两性离子表面活性剂选自十二烷基甜菜碱或二月桂酰基卵磷脂。
具体地,以本发明制备的介孔二氧化硅粉末作为内核,以胰岛素作为蛋白药物,制备跨黏液渗透的口服给药系统,包括如下步骤:
(1)称取CTAB溶于双蒸水中,制成1-5mg/mL水溶液(优选3.125mg/mL)。在20-60℃(优选60℃)水浴下,以600rpm的转速搅拌0.5h,使其充分溶解,按照正辛烷/双蒸水的体积比为0.3-0.8(优选0.44)的比例,逐滴滴加正辛烷至上述澄清溶液中,连接冷凝回流装置,继续搅拌2h,得到均匀乳液。
(2)向乳液中缓缓滴加苯乙烯单体,其中苯乙烯的体积应占反应液的5%-10%(优选7%)。
(3)在氮气保护下,将赖氨酸,正硅酸乙酯、及偶氮二异丁脒盐酸盐依次添加到反应液中。正硅酸乙酯:赖氨酸:偶氮二异丁脒盐酸盐:CTAB的质量比为10:0.1-0.3:0.1-0.5:1(优选10:0.22:0.36:1)。
(4)于20-80℃(优选60℃)搅拌反应1-6小时(优选3小时)后,将混悬液自然冷却,静置约10h,加入等体积的无水乙醇,于10000rpm离心8min,并用无水乙醇洗涤沉淀3次。
(5)将沉淀于60℃干燥12h后,于550℃煅烧6h,除去扩孔剂及模板,获得介孔二氧化硅粉末。
(6)称取上述二氧化硅粉末270mg溶解于40mL无水乙醇中,按3-氨丙基三乙氧基硅烷与二氧化硅的质量比为2-4(优选2.8)的比例加入3-氨丙基三乙氧基硅烷,于20-80℃(优选80℃)下搅拌回流3-20小时(优选10小时),样品转移至烧杯中,冷却后离心,用无水乙醇洗涤沉淀,干燥后获得氨基化修饰的二氧化硅(MSN-NH2)。
(7)称取MSN-NH2 100mg,用50mL DMSO分散后,加入50-200mg(优选100mg)去氧胆酸或十八酸,并用EDC和NHS作为成酰胺化反应的催化剂,载体:EDC:NHS比例为1:0.5:0.5,在20-80℃(优选60℃)下反应12-48h(优选48h)后,以10000rpm离心8min,并用无水乙醇洗涤沉淀即得表面疏水化二氧化硅(MSN-DC/MSN-S)。
(8)将制备的表面疏水化二氧化硅、胰岛素与两性离子表面活性剂十二烷基甜菜碱或二月桂酰基卵磷脂按1:0.5-2:0.5-2(优选1:1:1)的质量比溶于二甲基亚砜中,将上述混悬液滴加至蒸馏水。以10000rpm离心8min,获得自组装纳米。
本发明所制备的促进蛋白药物跨黏液渗透的口服给药系统的粒径为90-500nm(优选90-200nm),电位为-5至+5mv(优选0.8mV)。十八酸或胆酸在介孔二氧化硅表面的接枝量为10-15%,十二烷基甜菜碱或二月桂酰基卵磷脂在给药系统外层的包覆量为30-50%,对蛋白药物的载药量在10%-30%。该给药系统可促进药物在猪黏液中的渗透量,使其提高1-2倍;可提高肠上皮细胞对载药系统的摄取1-20倍(优选12倍);通过灌胃法对糖尿病小鼠给药,10小时后血糖下降值是口服胰岛素组的2-4倍。
附图说明
图1为MSN-NH2的扫描电子显微镜图;
图2为载药系统的粒径分布图;
图3为载药系统的Zeta电位图;
图4为Caco-2细胞对载药系统的细胞摄取量图;
图5为载药系统对糖尿病小鼠的降血糖药效图;
图6为载药系统在猪肠黏液中的表观渗透系数图;
图7为载药系统在大鼠离体肠管中的表观渗透系数图。
具体实施方式
实例1疏水化修饰介孔二氧化硅的制备
样品1
称取0.5g CTAB溶于160mL双蒸水中,在60℃水浴下,以600rpm的转速搅拌0.5h,使其充分溶解,将70mL正辛烷逐滴滴加至上述澄清溶液中,连接冷凝回流装置,继续搅拌2h,得到均匀乳液。向乳液中缓缓滴加18mL苯乙烯单体。在氮气保护下,将0.11g赖氨酸,5.0mL正硅酸乙酯、及0.181g偶氮二异丁脒盐酸盐依次添加到反应液中。反应3小时后,将混悬液自然冷却,静置约10h,加入等体积的无水乙醇,于10000rpm离心8min,并用无水乙醇洗涤沉淀3次。将沉淀于60℃干燥12h后,于550℃煅烧6h,除去扩孔剂及模板,获得介孔二氧化硅粉末(MSN)。称取上述粉末270mg溶解于40mL无水乙醇中,加入0.8mL APTES,于83℃下搅拌回流10h,样品转移至烧杯中,冷却后离心,用无水乙醇洗涤沉淀,干燥后获得载体(MSN-NH2),对载体的扫描电镜、粒径及Zeta电位测试结果如附图1-3。由图可知,MSN-NH2呈现多孔的球形,粒径约为90-340nm,表面电位为6.81mV。
对MSN-NH2进行疏水化修饰:称取MSN-NH2粉末100mg,用50mL DMSO溶解后,加入100mg硬脂酸,并用EDC和NHS作为成酰胺化反应的催化剂,载体:EDC:NHS比例为1:0.5:0.5,在60℃下反应48h后,以10000rpm离心8min,并用无水乙醇洗涤沉淀即得疏水化载体,命名为MSN-S。
样品2
称取样品1中MSN-NH2粉末100mg,用50mL DMSO溶解后,加入100mg去氧胆酸,并用EDC和NHS作为成酰胺化反应的催化剂,载体:EDC:NHS比例为1:0.5:0.5,在60℃下反应48h后,以10000rpm离心8min,并用无水乙醇洗涤沉淀即得疏水化载体,命名为MSN-DC。
实例2载胰岛素的自组装纳米粒的制备
样品1
称取3mg实施例1中样品1所制备的载体、3mg胰岛素和3mg十二烷基甜菜碱溶解于0.2mLDMSO中,将上述混悬液缓慢滴加至5ml蒸馏水中,以10000rpm离心8min,获得载药系统(MSN-S@TSB)。
样品2
称取3mg实施例1中样品2所制备的载体、3mg胰岛素和3mg二月桂酰基卵磷脂溶解于0.2mL DMSO中,将上述混悬液缓慢滴加至5ml蒸馏水中,以10000rpm离心8min,获得载药系统(MSN-DC@TSB)。
样品3
称取3mg实施例1中样品1所制备的载体、3mg胰岛素和3mg二月桂酰基卵磷脂溶解于0.2mL DMSO中,将上述混悬液缓慢滴加至5ml蒸馏水中,以10000rpm离心8min,获得载药系统(MSN-S@DLPC)。
样品4
称取3mg实施例1中样品2所制备的载体、3mg胰岛素和3mg二月桂酰基卵磷脂溶解于0.2mL DMSO中,将上述混悬液缓慢滴加至5ml蒸馏水中,以10000rpm离心8min,获得载药系统(MSN-DC@DLPC)。
对样品进行热失重分析,测得样品1中十八酸的接枝量为15%,十二烷基甜菜碱的修饰度为30%;样品2中去氧胆酸的接枝量为15%,十二烷基甜菜碱的修饰度为50%;样品3中十八酸的接枝量为10%,二月桂酰基卵磷脂的修饰度为30%;样品4中去氧胆酸的接枝量为10%,二月桂酰基卵磷脂的修饰度为50%。对样品的载药量的测定结果表明,样品1的载药量为9.86%;样品2的载药量为22.18%;样品3的载药量为12.52%;样品4的载药量为20.79%。对样品的粒径及Zeta电位测试结果如附图2-3。由图可知,样品1的粒径约为140-400nm,表面电位为-2.97mV;样品2的粒径约为106-340nm,表面电位为0.815mV;样品3的粒径约为122-531nm,表面电位为-1.68mV;样品4的粒径约为106-459nm,表面电位为0.847mV。以上实验结果表明,介孔二氧化硅内核经表面疏水化修饰及两性表面活性剂包覆后,粒径略有增大,表面电位由修饰前较强的正电性转变为电位几乎为零或略微为负,这一性质转变赋予了给药系统跨黏液渗透的功能。
实例3细胞摄取实验
将Caco-2细胞以1×105/mL的浓度培养于12孔板中,培养细胞至汇合度达90%。采用PBS清洗细胞之后,将载体分散至无血清的培养基与Caco-2细胞于37℃下孵育4小时。孵育结束后,弃去纳米粒分散液,以冰冷的PBS清洗细胞3次以终止细胞摄取。加入0.25%胰酶消化细胞,用0.3mLPBS复悬,以空白细胞为阴性对照,每个样品设置3个孔,各收集10000个细胞,测量平均荧光强度,MSN-S@DLPC、MSN-S@TSB、MSN-DC@DLPC、MSN-DC@TSB分别较MSN-NH2提高至1.2、2、20和13倍(平均荧光强度如附图4)。该结果表明本发明制备得到的给药系统,同普通二氧化硅相比可使细胞对给药系统的摄取显著提高。
实例4糖尿病小鼠降糖效果的测定
选取体重相近的(25-30g)昆明小鼠,禁食12h后,腹腔注射150mg/kg的链脲佐菌素溶液,给药72h后利用血糖仪测定小鼠血糖浓度。根据造模标准,当血糖浓度大于16.7mmol/L,表明造模成功。选取造模成功的小鼠35只,每组5只,分成7组,其中一组皮下注射5IU/kg的胰岛素溶液(s.c.)、一组灌胃30IU/kg的胰岛素溶液(oral)和余下5组采用灌胃30IU/kg的载胰岛素的载药系统溶液,并于特定时间间隔利用血糖仪测定小鼠血糖浓度,结果表明:发明制备的四种样品同蛋白药物自身口服及未经疏水化修饰未包覆表面活性剂的二氧化硅载药系统相比,可显著提高蛋白药物的药效。糖尿病小鼠给药10小时后血糖下降值可达口服胰岛素组的2-4倍(如附图5)。
实例5载体在猪肠黏液中的渗透实验
本实验考察载药系统在猪肠道黏蛋白中的渗透效果。在附近的屠宰场收集猪肠道黏液,并对其进行纯化处理,即将黏液分散于生理盐水中,在4℃下,缓慢搅拌4h,轻轻除去组织碎片,于4℃下离心收集黏液,保存于-20℃下备用。Transwell扩散池在使用前,上下小室中均加入pH=6.8的磷酸缓冲液,平衡30min。将上层小室中的缓冲液弃去,加入0.1mL猪黏液平铺于transwell扩散池的聚碳酸酯膜上,高度约2mm。在黏液层上覆盖一层孔径为2微米的滤膜,于37℃下平衡30min。在滤膜上加入经荧光标记的载药系统,放于37℃下的摇床中(50rpm),在15、30、60、90、120min时,从下层小室中取出0.1mL,利用酶标仪检测荧光强度,计算表观渗透系数(Papp),计算方法如下:
其中A为上层小室膜面积,C0为载药系统的浓度。
MSN-S@DLPC、MSN-S@TS、MSN-DC@DLPC、MSN-DC@TSB的表观渗透系数均较MSN-NH2有所提高,分别提高至MSN-NH2组的1.32、1.35、1.38及1.59倍(表观渗透系数如附图6)。该结果表明本发明制备得到的给药系统,同普通二氧化硅相比跨黏液渗透的能力有了较大的提高。
实例6大鼠肠管渗透性的测定
实验前大鼠禁食12h。颈椎脱臼处死,迅速打开腹腔,十二指肠(胃幽门下1cm)、空肠(幽门下15cm处)、回肠(盲肠往上20cm)各取6cm。用0℃K-R液轻轻冲洗干净。将一端肠管结扎成囊,并注入含FITC标记的载体溶液5毫升,将另一端结扎。放入12mL 37℃K-R液的西林瓶中,通入混合气(含95%O2和5%CO2),轻轻搅拌。分别在15,30,60,90,120min取600μL,同时补充等体积的37℃K-R液。将样品放入干净的塑料离心管中,0℃保存待用。实验结束后测量被考察肠段的长度(L)和内径(r)。用酶标仪测量荧光强度,并计算每段表观渗透系数(Papp)。
其中A为大鼠肠管面积,C0为载药系统初始浓度。四种载药系统在猪肠黏液中的表观渗透系数较MSN-NH2均有所增加,如MSN-S@DLPC、MSN-S@TS、MSN-DC@DLPC及MSN-DC@TSB在回肠段的吸收量分别提高至MSN-NH2组的2.7、2.3、3.2及3.5倍(表观渗透系数如附图7)。该结果表明本发明制备得到的给药系统,同普通二氧化硅相比被肠道吸收的量有了显著的提高。
Claims (9)
1.一种促进蛋白药物跨黏液渗透的口服给药系统,其特征在于,由去氧胆酸或十八酸修饰的表面疏水的介孔二氧化硅内核、蛋白药物及可促进体系跨黏液层吸收的两性离子表面活性剂外层组成,表面疏水的介孔二氧化硅:蛋白药物:两性离子表面活性剂的质量比为1:0.5-2:0.5-2;所述的蛋白药物选自:胰岛素、溶菌酶、牛血清白蛋白;所述的两性离子表面活性剂选自十二烷基甜菜碱或二月桂酰基卵磷脂。
2.如权利要求1所述的口服给药系统的制备方法,其特征在于,包括如下步骤:
(1)介孔二氧化硅纳米粒的制备;
(2)氨基化修饰的介孔二氧化硅的制备:
将介孔二氧化硅纳米粒分散于无水乙醇中,加入3-氨丙基三乙氧基硅烷,搅拌回流反应,得到氨基化修饰的介孔二氧化硅;
(3)表面疏水的介孔二氧化硅内核的制备:
将氨基化修饰的介孔二氧化硅分散于二甲基亚砜中,加入去氧胆酸或十八酸,加入催化剂EDC和NHS,反应得表面疏水的介孔二氧化硅内核;
(4)将制备的表面疏水的介孔二氧化硅、蛋白药物与两性离子表面活性剂溶于二甲基亚砜中,将该混合液滴加至蒸馏水,离心获得跨黏液渗透的口服给药系统自组装纳米粒。
3.如权利要求2所述的制备方法,其特征在于,
步骤(1)通过如下步骤制备:
(a)在十六烷基三甲基溴化铵(CTAB)的水溶液中滴加正辛烷,搅拌配制
形成水包油型乳液;
(b)将苯乙烯单体逐滴加入步骤(a)的体系中;
(c)在氮气保护条件下将赖氨酸,正硅酸乙酯及偶氮二异丁脒盐酸盐依次
加入到步骤(b)的体系中;
(d)搅拌反应后将反应液自然冷却至室温,静置后离心分离;
(e)将沉淀物置于马弗炉中煅烧后研磨得到介孔二氧化硅纳米粒。
4.如权利要求3所述的制备方法,其特征在于,
步骤(a)中十六烷基三甲基溴化铵水溶液的浓度为:1-5 mg/mL;正辛烷:十六烷基三甲基溴化铵水溶液的体积比为0.3~0.8;步骤(b)中苯乙烯与十六烷基三甲基溴化铵的体积比为1:9-1:19;步骤(c)中正硅酸乙酯:赖氨酸:偶氮二异丁脒盐酸盐:十六烷基三甲基溴化铵的质量比为10:0.1-0.3:0.1-0.5:1。
5.如权利要求2所述的制备方法,其特征在于,
步骤(2)中,3-氨丙基三乙氧基硅烷与介孔二氧化硅纳米粒的质量比为2-4,反应温度为20-80oC,反应3-20小时。
6.如权利要求2所述的制备方法,其特征在于,
步骤(3)中,二氧化硅与去氧胆酸或十八酸的质量比为2:1-1:2,二氧化硅:EDC:
NHS比例为1:0.2-1:0.2-1。
7.如权利要求2所述的制备方法,其特征在于,
其中表面疏水的介孔二氧化硅:蛋白药物:两性离子表面活性剂为1:0.5-2:0.5-2;
所述的蛋白药物选自:胰岛素、溶菌酶、牛血清白蛋白,所述的两性离子表面活性剂选自十二烷基甜菜碱或二月桂酰基卵磷脂。
8.权利要求1所述的口服给药系统在制备促进蛋白药物跨黏液渗透作用的药物中的应用。
9.如权利要求8所述的应用,其特征在于,所述的蛋白药物为:胰岛素、溶菌酶、牛血清白蛋白。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910051170.5A CN111450258B (zh) | 2019-01-21 | 2019-01-21 | 一种促进蛋白药物跨黏液渗透的口服给药系统及其制备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910051170.5A CN111450258B (zh) | 2019-01-21 | 2019-01-21 | 一种促进蛋白药物跨黏液渗透的口服给药系统及其制备 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111450258A CN111450258A (zh) | 2020-07-28 |
CN111450258B true CN111450258B (zh) | 2022-08-02 |
Family
ID=71671513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910051170.5A Active CN111450258B (zh) | 2019-01-21 | 2019-01-21 | 一种促进蛋白药物跨黏液渗透的口服给药系统及其制备 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111450258B (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112206219B (zh) * | 2020-10-20 | 2022-09-23 | 沈阳药科大学 | 葡萄糖敏感型胰岛素给药系统的制备及应用 |
CN113444496A (zh) * | 2021-04-08 | 2021-09-28 | 北京工业大学 | 一种相变材料包裹介孔二氧化硅的纳米粒的制备方法 |
CN115571884A (zh) * | 2021-06-21 | 2023-01-06 | 复旦大学 | 一种促进药物口服吸收的硅纳米载体及其载药体系 |
CN116407520A (zh) * | 2021-12-30 | 2023-07-11 | 沈阳药科大学 | 一种仿生疫苗口服递送系统及其制备方法和应用 |
CN114767655B (zh) * | 2022-04-19 | 2023-09-22 | 中国药科大学 | 一种两性离子功能化的生物可降解口服纳米载药系统及应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102333547A (zh) * | 2008-12-29 | 2012-01-25 | 通用电气公司 | 用于诊断成像的纳米颗粒造影剂 |
CN105726353A (zh) * | 2014-08-07 | 2016-07-06 | 金周垣 | 包括含二氧化硅复合纳米颗粒的水分贴片 |
CN106177967A (zh) * | 2016-07-12 | 2016-12-07 | 上海纳米技术及应用国家工程研究中心有限公司 | 一种氟碳纳米粒及其制备方法 |
CN106456465A (zh) * | 2014-05-14 | 2017-02-22 | 金周垣 | 含二氧化硅的复合纳米颗粒及包含其的水凝胶保湿贴片 |
WO2017136641A1 (en) * | 2016-02-05 | 2017-08-10 | Gtrack Technologies, Inc. | Mesoporous silica nanoparticles as fluorescent tracers for reservoir characterization |
-
2019
- 2019-01-21 CN CN201910051170.5A patent/CN111450258B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102333547A (zh) * | 2008-12-29 | 2012-01-25 | 通用电气公司 | 用于诊断成像的纳米颗粒造影剂 |
CN106456465A (zh) * | 2014-05-14 | 2017-02-22 | 金周垣 | 含二氧化硅的复合纳米颗粒及包含其的水凝胶保湿贴片 |
CN105726353A (zh) * | 2014-08-07 | 2016-07-06 | 金周垣 | 包括含二氧化硅复合纳米颗粒的水分贴片 |
WO2017136641A1 (en) * | 2016-02-05 | 2017-08-10 | Gtrack Technologies, Inc. | Mesoporous silica nanoparticles as fluorescent tracers for reservoir characterization |
CN106177967A (zh) * | 2016-07-12 | 2016-12-07 | 上海纳米技术及应用国家工程研究中心有限公司 | 一种氟碳纳米粒及其制备方法 |
Non-Patent Citations (1)
Title |
---|
《Multiple-Responsive Mesoporous Silica Nanoparticles for Highly Accurate Drugs Delivery to Tumor Cells》;Ronghua Jin等;《ACS Omega》;20180418;第3卷(第4期);摘要 * |
Also Published As
Publication number | Publication date |
---|---|
CN111450258A (zh) | 2020-07-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111450258B (zh) | 一种促进蛋白药物跨黏液渗透的口服给药系统及其制备 | |
Abeer et al. | Silica nanoparticles: A promising platform for enhanced oral delivery of macromolecules | |
Gao et al. | Zwitterion-functionalized mesoporous silica nanoparticles for enhancing oral delivery of protein drugs by overcoming multiple gastrointestinal barriers | |
Hariharan et al. | Design of estradiol loaded PLGA nanoparticulate formulations: a potential oral delivery system for hormone therapy | |
US7195780B2 (en) | Nanoparticle delivery system | |
FI107993B (fi) | Mikropartikkelien valmistus | |
US20030035838A1 (en) | Drug delivery system exhibiting permeability control | |
EP3099293B1 (en) | Nanoencapsulation of hydrophilic active compounds | |
US20090232899A1 (en) | Mucoadhesive nanocomposite delivery system | |
JP2008533108A (ja) | 生物学的に活性な分子の投与系としての、キトサンとポリエチレングリコールとのナノ粒子 | |
CN112206219B (zh) | 葡萄糖敏感型胰岛素给药系统的制备及应用 | |
WO2019148811A1 (zh) | 一种负载胰岛素的肠溶性纳微颗粒及其制备方法和应用 | |
US9675710B2 (en) | Lipid nanoparticles for gene therapy | |
Lee et al. | A charge-switched nano-sized polymeric carrier for protein delivery | |
Wang et al. | Improved oral delivery of insulin by PLGA nanoparticles coated with 5β-cholanic acid conjugated glycol chitosan | |
CN113616804B (zh) | 靶向乳铁蛋白受体的多功能纳米药物载体及其制备方法与载药组合物 | |
Zhang et al. | An oral polyphenol host-guest nanoparticle for targeted therapy of inflammatory bowel disease | |
Zhou et al. | Mucus-penetrating dendritic mesoporous silica nanoparticle loading drug nanocrystal clusters to enhance permeation and intestinal absorption | |
KR101319642B1 (ko) | pH 민감성 약물 전달용 나노 복합체 및 이의 제조방법 | |
CN115590981B (zh) | 一种生物活性大分子药物的口服递送系统及其制备方法 | |
CN114106321B (zh) | 一种活性氧响应性材料pei-sh的制备方法与应用 | |
US9458212B2 (en) | Nanoparticles containing a peptide, vectors containing said nanoparticles, and pharmaceutical uses of said nanoparticles and vectors | |
CN114081963A (zh) | 一种提高活性肽生物利用度的纳米载体及其制备与应用 | |
EP2696856A1 (en) | Controlled-release formulation comprising hcg | |
Xiao et al. | Applications of chitosan-based gels in pharmaceuticals |
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 |