CN111671572B - 冻干医用敷料的制备方法和冻干医用冷敷贴 - Google Patents
冻干医用敷料的制备方法和冻干医用冷敷贴 Download PDFInfo
- Publication number
- CN111671572B CN111671572B CN202010566174.XA CN202010566174A CN111671572B CN 111671572 B CN111671572 B CN 111671572B CN 202010566174 A CN202010566174 A CN 202010566174A CN 111671572 B CN111671572 B CN 111671572B
- Authority
- CN
- China
- Prior art keywords
- freeze
- target protein
- culture medium
- dried medical
- medical dressing
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 43
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 41
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 27
- XMGQYMWWDOXHJM-JTQLQIEISA-N (+)-α-limonene Chemical compound CC(=C)[C@@H]1CCC(C)=CC1 XMGQYMWWDOXHJM-JTQLQIEISA-N 0.000 claims abstract description 24
- 239000013612 plasmid Substances 0.000 claims abstract description 21
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 230000001580 bacterial effect Effects 0.000 claims abstract description 17
- 238000012258 culturing Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 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 abstract description 13
- 229920002674 hyaluronan Polymers 0.000 claims abstract description 13
- 229960003160 hyaluronic acid Drugs 0.000 claims abstract description 13
- 238000010008 shearing Methods 0.000 claims abstract description 13
- 238000007872 degassing Methods 0.000 claims abstract description 12
- 241001506047 Tremella Species 0.000 claims abstract description 11
- 238000001704 evaporation Methods 0.000 claims abstract description 11
- BPHPUYQFMNQIOC-NXRLNHOXSA-N isopropyl beta-D-thiogalactopyranoside Chemical compound CC(C)S[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O BPHPUYQFMNQIOC-NXRLNHOXSA-N 0.000 claims abstract description 11
- 239000000725 suspension Substances 0.000 claims abstract description 10
- LXAHHHIGZXPRKQ-UHFFFAOYSA-N 5-fluoro-2-methylpyridine Chemical compound CC1=CC=C(F)C=N1 LXAHHHIGZXPRKQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920001661 Chitosan Polymers 0.000 claims abstract description 7
- 229920002385 Sodium hyaluronate Polymers 0.000 claims abstract description 7
- 239000011259 mixed solution Substances 0.000 claims abstract description 7
- 229940010747 sodium hyaluronate Drugs 0.000 claims abstract description 7
- YWIVKILSMZOHHF-QJZPQSOGSA-N sodium;(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- Chemical compound [Na+].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 YWIVKILSMZOHHF-QJZPQSOGSA-N 0.000 claims abstract description 7
- YDNKGFDKKRUKPY-JHOUSYSJSA-N C16 ceramide Natural products CCCCCCCCCCCCCCCC(=O)N[C@@H](CO)[C@H](O)C=CCCCCCCCCCCCCC YDNKGFDKKRUKPY-JHOUSYSJSA-N 0.000 claims abstract description 6
- CRJGESKKUOMBCT-VQTJNVASSA-N N-acetylsphinganine Chemical compound CCCCCCCCCCCCCCC[C@@H](O)[C@H](CO)NC(C)=O CRJGESKKUOMBCT-VQTJNVASSA-N 0.000 claims abstract description 6
- 229940106189 ceramide Drugs 0.000 claims abstract description 6
- ZVEQCJWYRWKARO-UHFFFAOYSA-N ceramide Natural products CCCCCCCCCCCCCCC(O)C(=O)NC(CO)C(O)C=CCCC=C(C)CCCCCCCCC ZVEQCJWYRWKARO-UHFFFAOYSA-N 0.000 claims abstract description 6
- VVGIYYKRAMHVLU-UHFFFAOYSA-N newbouldiamide Natural products CCCCCCCCCCCCCCCCCCCC(O)C(O)C(O)C(CO)NC(=O)CCCCCCCCCCCCCCCCC VVGIYYKRAMHVLU-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000013604 expression vector Substances 0.000 claims abstract description 5
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 4
- 238000004108 freeze drying Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000012880 LB liquid culture medium Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 13
- 241000894006 Bacteria Species 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 239000001963 growth medium Substances 0.000 claims description 9
- 229930027917 kanamycin Natural products 0.000 claims description 7
- 229960000318 kanamycin Drugs 0.000 claims description 7
- SBUJHOSQTJFQJX-NOAMYHISSA-N kanamycin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CN)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O[C@@H]2[C@@H]([C@@H](N)[C@H](O)[C@@H](CO)O2)O)[C@H](N)C[C@@H]1N SBUJHOSQTJFQJX-NOAMYHISSA-N 0.000 claims description 7
- 229930182823 kanamycin A Natural products 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000009630 liquid culture Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000001131 transforming effect Effects 0.000 claims description 6
- 239000003550 marker Substances 0.000 claims description 4
- 102000008186 Collagen Human genes 0.000 claims description 3
- 108010035532 Collagen Proteins 0.000 claims description 3
- 102000016359 Fibronectins Human genes 0.000 claims description 3
- 108010067306 Fibronectins Proteins 0.000 claims description 3
- 108090000723 Insulin-Like Growth Factor I Proteins 0.000 claims description 3
- 102000014150 Interferons Human genes 0.000 claims description 3
- 108010050904 Interferons Proteins 0.000 claims description 3
- 102000015696 Interleukins Human genes 0.000 claims description 3
- 108010063738 Interleukins Proteins 0.000 claims description 3
- 102000011782 Keratins Human genes 0.000 claims description 3
- 108010076876 Keratins Proteins 0.000 claims description 3
- 102000004503 Perforin Human genes 0.000 claims description 3
- 108010056995 Perforin Proteins 0.000 claims description 3
- KHGNFPUMBJSZSM-UHFFFAOYSA-N Perforine Natural products COC1=C2CCC(O)C(CCC(C)(C)O)(OC)C2=NC2=C1C=CO2 KHGNFPUMBJSZSM-UHFFFAOYSA-N 0.000 claims description 3
- 102000013275 Somatomedins Human genes 0.000 claims description 3
- 108060008682 Tumor Necrosis Factor Proteins 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229920001436 collagen Polymers 0.000 claims description 3
- 239000003145 cytotoxic factor Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000000855 fermentation Methods 0.000 claims description 3
- 230000004151 fermentation Effects 0.000 claims description 3
- 102000013370 fibrillin Human genes 0.000 claims description 3
- 108060002895 fibrillin Proteins 0.000 claims description 3
- 210000002950 fibroblast Anatomy 0.000 claims description 3
- 239000003102 growth factor Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 238000005342 ion exchange Methods 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 238000003760 magnetic stirring Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229930192851 perforin Natural products 0.000 claims description 3
- 102000003390 tumor necrosis factor Human genes 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 102100031900 Neogenin Human genes 0.000 claims 1
- 238000007710 freezing Methods 0.000 claims 1
- 230000008014 freezing Effects 0.000 claims 1
- 229940047124 interferons Drugs 0.000 claims 1
- 229940047122 interleukins Drugs 0.000 claims 1
- 108010076969 neogenin Proteins 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 239000013543 active substance Substances 0.000 abstract description 5
- 230000001939 inductive effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 9
- 239000003755 preservative agent Substances 0.000 description 6
- 230000002335 preservative effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000014509 gene expression Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 201000004624 Dermatitis Diseases 0.000 description 3
- 208000028990 Skin injury Diseases 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000007815 allergy Effects 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 239000000017 hydrogel Substances 0.000 description 3
- 206010033675 panniculitis Diseases 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 210000004304 subcutaneous tissue Anatomy 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 210000001808 exosome Anatomy 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 229940079322 interferon Drugs 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 239000012567 medical material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000012730 sustained-release form Substances 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 101150109249 lacI gene Proteins 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- -1 natural gauze Substances 0.000 description 1
- 238000000554 physical therapy Methods 0.000 description 1
- 239000013600 plasmid vector Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000037384 skin absorption Effects 0.000 description 1
- 231100000274 skin absorption Toxicity 0.000 description 1
- 231100000245 skin permeability Toxicity 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000010473 stable expression Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive bandages or dressings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/00051—Accessories for dressings
- A61F13/00063—Accessories for dressings comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/01—Non-adhesive bandages or dressings
- A61F13/01008—Non-adhesive bandages or dressings characterised by the material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive bandages or dressings
- A61F13/0276—Apparatus or processes for manufacturing adhesive dressings or bandages
- A61F13/0286—Apparatus or processes for manufacturing adhesive dressings or bandages manufacturing of non adhesive dressings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F2007/0203—Cataplasms, poultices or compresses, characterised by their contents; Bags therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F2007/0261—Compresses or poultices for effecting heating or cooling medicated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M2037/0007—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin having means for enhancing the permeation of substances through the epidermis, e.g. using suction or depression, electric or magnetic fields, sound waves or chemical agents
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Dermatology (AREA)
- Medical Informatics (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
本发明公开了一种冻干医用敷料的制备方法和冻干医用冷敷贴,制备方法包括:以表达载体T7启动子‑lac操纵子‑目的蛋白‑6xHis‑T7标记区‑6xHis‑T7终止子,附加体lac‑rop‑bom‑ori‑kanR,ori系统构建并合成质粒;将质粒与感受态细菌悬液混匀培养;将菌液由IPTG诱导、发酵、洗脱得到目的蛋白;加入寡肽‑1、D‑柠檬烯、甘油、目的蛋白、透明质酸钠、HA-800透明质酸、神经酰胺、银耳提取物、EDTA‑二钠和壳聚糖,对混合液剪切、脱气、低温蒸发蒸干、冻干,形成冻干医用敷料。通过本发明的技术方案,提高了目的蛋白的纯度、活性、适用性,提高了冷敷贴的稳定性,提高了活性物质的利用率,使用灵活。
Description
技术领域
本发明涉及医用材料及生物技术领域,尤其涉及一种冻干医用敷料的制备方法和一种冻干医用冷敷贴。
背景技术
医用敷料常用于覆盖疮、伤口或其他损害的医用材料,包括天然纱布、合成纤维类敷料等。医用敷料能防止伤口再伤害,对伤口的温度和湿度进行妥善调节,减少并发症和防止自然愈合过程中的感染现象。但现有的敷料仍存在吸收渗液能力差、透气性差、抑菌效果较差等缺点,除此之外,这类产品携带不方便,无法随时随地使用,伤口愈合后皮肤愈合效果不佳。
发明内容
针对上述问题中的至少之一,本发明提供了一种冻干医用敷料的制备方法和冻干医用冷敷贴,适用于闭合性软组织的物理退热、冷敷理疗,通过冷敷贴所含成分带走热量,可以达到局部降温,其中的功效成分与空气接触迅速吸收空气中的水分形成水凝胶,通过水合作用,可以使功效成分迅速穿透脂肪层,渗透到皮下组织,直达病灶部位,作用于患处,达到冷敷祛痛、经皮吸收、缓释给药的效果。本发明采用构建的包括目的蛋白的质粒在原核生物细菌中进行培养,诱导产生大量稳定的目的蛋白,降低工业成本的同时保证原料的纯度与活性,且不同的目的蛋白能够应用于不同作用的产品。本发明制备的医用敷料中不含水分,无需添加防腐剂,可以减少因防腐剂引起的皮肤伤害或过敏现象;使用比较灵活,润湿时间快速,放在皮肤表面后即可使用。另外,本发明采用低温蒸发蒸干处理,既保证了外泌体的活性,又大大降低了水结晶时产生的冰晶对蛋白的破坏作用,从始至终维持低温对活性物质形成了良好的保护,减少了热敏性物质的损失,敷料中一些易氧化的物质得到了保护,从而提高了活性物质的利用率,提高了冷敷贴的稳定性。
为实现上述目的,本发明提供了一种冻干医用敷料的制备方法,包括:以表达载体T7启动子-lac操纵子-目的蛋白-6xHis-T7标记区-6xHis-T7终止子,附加体lac-rop-bom-ori-kanR,ori系统构建并合成质粒;将所述质粒与感受态细菌悬液混匀,并进行培养;将经由IPTG诱导后的菌液进行发酵,并洗脱得到所述目的蛋白;以重量份计,加入0.1-10份寡肽-1、0.1-10份D-柠檬烯、0.1-10份甘油、0.1-10份所述目的蛋白、0.1-10份透明质酸钠、1-10份HA-800透明质酸、0.1-10份神经酰胺、0.5-5份银耳提取物、0.1-1份EDTA-二钠和0.1-2份壳聚糖;加入纯水定容至所需重量,将混合液进行剪切和脱气后采用低温蒸发蒸干及冻干操作,形成冻干医用敷料。
在上述技术方案中,优选地,所述将所述质粒与感受态细菌悬液混匀并进行培养具体包括:将感受态细菌悬液加入离心管中,置于冰上;向所述离心管中加入所述质粒,并用移液器轻柔混匀,冰上静置20-30分钟;向所述离心管中加入LB液体培养基,混匀后在37℃环境下振荡培养;取所述离心管中的细菌培养液涂布至含有卡那霉素的LB固体培养基上;在37℃环境下倒置培养12-16小时,菌落生长良好而未互相重叠时取出;将所述菌落接种至LA液体培养基中,在37℃环境下以200rpm振摇培养;培养至OD600达到0.6-0.8时,加入IPTG进行诱导,并置于37℃摇床继续培养4小时。
在上述技术方案中,优选地,所述将经由IPTG诱导后的菌液进行发酵并洗脱得到所述目的蛋白具体包括:将诱导后的菌液加入含有卡那霉素的LB液体培养基中,在37℃环境下振荡培养,待LB液体培养基浑浊后倒入发酵罐中发酵12-24小时;取出发酵后的LB液体培养基装入离子交换柱,根据所述目的蛋白进行条件选择,洗脱得到所述目的蛋白。
在上述技术方案中,优选地,以重量份计,加入2份寡肽-1、0.5份D-柠檬烯、1份甘油、0.5份目的蛋白、5份透明质酸钠、1份HA-800透明质酸,0.5份神经酰胺、1份银耳提取物、0.15份EDTA-二钠和1份壳聚糖,并加纯水定容至所需重量。
在上述技术方案中,优选地,所述目的蛋白包括寡肽-1、碱性成纤维蛋白、角质蛋白、胶原蛋白、纤维连接蛋白、原纤蛋白、再生蛋白、转化因子、胰岛素样生长因子和转化因子、透明质酸、白介素、干扰素、肿瘤坏死因子、穿孔素和细胞毒因子。
在上述技术方案中,优选地,所述将混合液进行剪切和脱气后采用冻干操作的具体步骤包括:将所需量的原料置于烧杯中进行湿混并定容;采用高剪切混合乳化机对原料进行剪切;将剪切后的原料转移至脱气瓶中,并在磁力搅拌下抽真空脱气至无气泡为止;将混合物在4-8℃、真空度100毫巴的条件下蒸发蒸干20分钟;将混合物在液氮下速冻,将冷冻后的混合物在低温冻干箱内冷冻干燥成固体。
在上述技术方案中,优选地,所述冻干箱中的冷冻干燥的方法包括:低温冻干箱的冷阱温度为-40度,真空度为0.1毫巴,板层温度为-20度,混合物在-110度冻干15分钟后,板层温度由-20度升至8度,继续冻干60分钟,压升试验合格后,由所述冻干箱取出。
在上述技术方案中,优选地,剪切工艺过程的剪切速率为2000rpm,剪切时间为30分钟。
本发明还提出一种冻干医用冷敷贴,利用如上述技术方案中任一项所述的冻干医用敷料的制备方法所制备出的冻干医用敷料,将所述冻干医用敷料均匀敷设于膜布上,形成冻干医用冷敷贴。
与现有技术相比,本发明的有益效果为:通过冷敷贴所含成分带走热量,可以达到局部降温,其中的功效成分与空气接触迅速吸收空气中的水分形成水凝胶,通过水合作用,可以使功效成分迅速穿透脂肪层,渗透到皮下组织,直达病灶部位,作用于患处,达到冷敷祛痛、经皮吸收、缓释给药的效果。本发明采用构建的包括目的蛋白的质粒在原核生物细菌中进行培养,诱导产生大量稳定的目的蛋白,降低工业成本的同时保证原料的纯度与活性,且不同的目的蛋白能够应用于不同作用的产品。本发明制备的医用敷料中不含水分,无需添加防腐剂,可以减少因防腐剂引起的皮肤伤害或过敏现象;使用比较灵活,润湿时间快速,放在皮肤表面后即可使用。另外,本发明采用冻干处理,通过4℃沸腾蒸干蒸发至80%水分,既保证了外泌体的活性,又大大降低了水结晶时产生的冰晶对蛋白的破坏作用,从始至终维持低温对活性物质形成了良好的保护,减少了热敏性物质的损失,敷料中一些易氧化的物质得到了保护,从而提高了活性物质的利用率,提高了冷敷贴的稳定性。
附图说明
图1为本发明一种实施例公开的冻干医用敷料的制备方法的流程示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都属于本发明保护的范围。
下面结合附图对本发明做进一步的详细描述:
如图1所示,根据本发明提供的一种冻干医用敷料的制备方法,包括:以表达载体T7启动子-lac操纵子-目的蛋白-6xHis-T7标记区-6xHis-T7终止子,附加体lac-rop-bom-ori-kanR,ori系统构建并合成质粒;将质粒与感受态细菌悬液混匀,并进行培养;将经由IPTG诱导后的菌液进行发酵,并洗脱得到目的蛋白;以重量份计,加入0.1-10份寡肽-1、0.1-10份D-柠檬烯、0.1-10份甘油、0.1-10份目的蛋白、0.1-10份透明质酸钠、1-10份HA-800透明质酸、0.1-10份神经酰胺、0.5-5份银耳提取物、0.1-1份EDTA-二钠和0.1-2份壳聚糖;加入纯水定容至所需重量,将混合液进行剪切和脱气后采用低温蒸发蒸干及冻干操作,形成冻干医用敷料。
在该实施例中,通过冷敷贴所含成分带走热量,可以达到局部降温,其中的功效成分与空气接触迅速吸收空气中的水分形成水凝胶,通过水合作用,可以使功效成分迅速穿透脂肪层,渗透到皮下组织,直达病灶部位,作用于患处,达到冷敷祛痛、经皮吸收、缓释给药的效果。本发明采用构建的包括目的蛋白的质粒在原核生物细菌中进行培养,诱导产生大量稳定的目的蛋白,降低工业成本的同时保证原料的纯度与活性,且不同的目的蛋白能够应用于不同作用的产品。本发明制备的医用敷料中不含水分,无需添加防腐剂,可以减少因防腐剂引起的皮肤伤害或过敏现象;使用比较灵活,润湿时间快速,放在皮肤表面后即可使用。另外,本发明采用冻干处理,减少了热敏性物质的损失,敷料中一些易氧化的物质得到了保护,提高了冷敷贴的稳定性。
具体地,相比于一般的质粒系统外源基因随着表达而逐渐丢失,本发明中构建的质粒适用于原核生物强启动子高表达载体。其中,质粒的拷贝数在细菌里本身很低,T7-lac系统通过IPTG诱导使目的蛋白的表达量增高,产物稳定,具有易鉴定、易纯化等优点,质粒载体基础表达水平最低,T7 lac启动子具有自己的lacI,确保足够的阻碍蛋白结合到操纵基因位点上,保障目的蛋白的稳定表达,T7标记区提供多种目的蛋白表达,通过大量稳定的蛋白表达降低了生产成本。
其中,D-柠檬烯不易溶于易溶于有机溶剂,甘油作为一种有机溶剂可以溶解D-柠檬烯,G甘油可以以任意比例容易水从而解决了D-柠檬烯不溶于水的难题,D-柠檬烯增加药物进入皮肤的渗透性,使药物更有效的进入皮肤,促进皮肤吸收效果。透明质酸钠可迅速吸收空气中的水分形成一层透气的薄膜,透明质酸分子将其结合的水分子锁定在其双螺旋柱状结构中,使水分不易流失,吸收的大量水分为甘油所包含的D-柠檬烯等其他成分提供了良好的溶解环境。D-柠檬烯增强皮肤的渗透性而HA-800透明质酸具有轻微扩张毛细血管、增加血液循环、改善中间代谢作用。壳聚糖的添加使有效成分更好的附着在皮肤表面,使本发明的冷敷贴其他有效成分更容易进入体内发挥作用。EDTA-二钠为生物活性成分提供稳定的保护使作用成分的利用率达到90%以上,大大提高吸收效果,同时结合银耳提取物,银耳提取物中因富含银耳多糖,银耳多糖分子中含有大量羧基、羟基等基团,这些极性基团可与水分子结合形成氢键,具有良好的保湿锁水效果,大量的水分具有散热降温的功效。
在上述实施例中,优选地,将质粒与感受态细菌悬液混匀并进行培养具体包括:将100μl感受态细菌悬液加入1.5ml离心管中,置于冰上;向离心管中加入20μl质粒,并用移液器轻柔混匀,冰上静置20-30分钟;将离心管42℃水浴热激90秒,然后迅速置冰上3-5分钟;向离心管中加入1ml的LB液体培养基(不含抗生素),混匀后在37℃环境下振荡(180rpm/h-300rpm/h)培养1-2小时,使细菌恢复生长状态,并表达质粒编码的抗生素抗性基因;取离心管中100μl的细菌培养液均匀涂布至含有卡那霉素的LB固体培养基上;在37℃环境下倒置培养12-16小时,菌落生长良好而未互相重叠时取出;将菌落接种至4ml的LA液体培养基中,在37℃环境下以200rpm振摇培养过夜;取100μl培养过夜的菌液接种到5mL的LA液体培养液中,在37℃、200rpm振摇培养至OD600达到0.6-0.8时,加入1M的IPTG进行诱导,并置于37℃摇床继续培养4小时。
在上述实施例中,优选地,将经由IPTG诱导后的菌液进行发酵并洗脱得到目的蛋白具体包括:将诱导后的菌液加入1L含有卡那霉素的LB液体培养基中,在37℃环境下振荡(180rpm/h-300rpm/h)培养24-36小时,待LB液体培养基浑浊后倒入10-100L的含有抗生素卡那霉素的LB液体培养基的发酵罐中发酵12-24小时;取出发酵后的LB液体培养基装入离子交换柱,根据所要表达目的蛋白的大小进行条件选择,洗脱得到目的蛋白。
在上述实施例中,优选地,以重量份计,加入2份寡肽-1、0.5份D-柠檬烯、1份甘油、0.5份目的蛋白、5份透明质酸钠、1份HA-800透明质酸,0.5份神经酰胺、1份银耳提取物、0.15份EDTA-二钠和1份壳聚糖,并加纯水定容至所需重量,能够使得产品达到最优效果。
在上述实施例中,优选地,目的蛋白包括寡肽-1、碱性成纤维蛋白、角质蛋白、胶原蛋白、纤维连接蛋白、原纤蛋白、再生蛋白、转化因子、胰岛素样生长因子和转化因子、透明质酸、白介素、干扰素、肿瘤坏死因子、穿孔素和细胞毒因子。
在上述实施例中,优选地,将混合液进行剪切和脱气后采用冻干操作的具体步骤包括:将所需量的原料置于1L烧杯中进行湿混并定容至500克;采用高剪切混合乳化机对原料以2000rpm剪切30分钟;将剪切后的原料转移至脱气瓶中,并在磁力搅拌下抽真空脱气至无气泡为止;将混合物在4-8℃、真空度100毫巴的条件下蒸发蒸干20分钟;将混合物在液氮下速冻,将冷冻后的混合物在低温冻干箱内冷冻干燥成固体。
在上述实施例中,优选地,冻干箱中的冷冻干燥的方法包括:低温冻干箱的冷阱温度为-40度,真空度为0.1毫巴,板层温度为-20度,混合物在-110度冻干15分钟后,板层温度由-20度升至8度,继续冻干60分钟压升试验合格后,由所述冻干箱取出。
在上述实施例中,优选地,具体的制备工艺参数范围如下:
本发明还提出一种冻干医用冷敷贴,利用如上述实施例中任一项的冻干医用敷料的制备方法所制备出的冻干医用敷料,将冻干医用敷料均匀敷设于膜布上,形成冻干医用冷敷贴。
以上仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
序列表
<110> 北京本真工坊生物科技有限公司
<120> 冻干医用敷料的制备方法和冻干医用冷敷贴
<160> 16
<210> 1
<211> 19
<212> DNA
<213> 未知
<400> 1
cctatagtga gtcgtatta 19
<210> 2
<211> 25
<212> DNA
<213> 未知
<400> 2
ggaattgtta tccgctcaca attcc 25
<210> 3
<211> 18
<212> DNA
<213> 未知
<400> 3
gtgatgatga tgatgatg 18
<210> 4
<211> 33
<212> DNA
<213> 未知
<400> 4
acccatttgc tgtccaccag tcatgctagc cat 33
<210> 5
<211> 48
<212> DNA
<213> 未知
<400> 5
caaaaaaccc ctcaagaccc gtttagaggc cccaaggggt tatgctag 48
<210> 6
<211> 1161
<212> DNA
<213> 未知
<400> 6
gacaccatcg aatggcgcaa aacctttcgc ggtatggcat gatagcgccc ggaagagagt 60
caattcaggg tggtgaatgt gaaaccagta acgttatacg atgtcgcaga gtatgccggt 120
gtctcttatc agaccgtttc ccgcgtggtg aaccaggcca gccacgtttc tgcgaaaacg 180
cgggaaaaag tggaagcggc gatggcggag ctgaattaca ttcccaaccg cgtggcacaa 240
caactggcgg gcaaacagtc gttgctgatt ggcgttgcca cctccagtct ggccctgcac 300
gcgccgtcgc aaattgtcgc ggcgattaaa tctcgcgccg atcaactggg tgccagcgtg 360
gtggtgtcga tggtagaacg aagcggcgtc gaagcctgta aagcggcggt gcacaatctt 420
ctcgcgcaac gcgtcagtgg gctgatcatt aactatccgc tggatgacca ggatgccatt 480
gctgtggaag ctgcctgcac taatgttccg gcgttatttc ttgatgtctc tgaccagaca 540
cccatcaaca gtattatttt ctcccatgaa gacggtacgc gactgggcgt ggagcatctg 600
gtcgcattgg gtcaccagca aatcgcgctg ttagcgggcc cattaagttc tgtctcggcg 660
cgtctgcgtc tggctggctg gcataaatat ctcactcgca atcaaattca gccgatagcg 720
gaacgggaag gcgactggag tgccatgtcc ggttttcaac aaaccatgca aatgctgaat 780
gagggcatcg ttcccactgc gatgctggtt gccaacgatc agatggcgct gggcgcaatg 840
cgcgccatta ccgagtccgg gctgcgcgtt ggtgcggata tctcggtagt gggatacgac 900
gataccgaag acagctcatg ttatatcccg ccgttaacca ccatcaaaca ggattttcgc 960
ctgctggggc aaaccagcgt ggaccgcttg ctgcaactct ctcagggcca ggcggtgaag 1020
ggcaatcagc tgttgcccgt ctcactggtg aaaagaaaaa ccaccctggc gcccaatacg 1080
caaaccgcct ctccccgcgc gttggccgat tcattaatgc agctggcacg acaggtttcc 1140
cgactggaaa gcgggcagtg a 1161
<210> 7
<211> 192
<212> DNA
<213> 未知
<400> 7
gtgaccaaac aggaaaaaac cgcccttaac atggcccgct ttatcagaag ccagacatta 60
acgcttctgg agaaactcaa cgagctggac gcggatgaac aggcagacat ctgtgaatcg 120
cttcacgacc acgctgatga gctttaccgc agctgcctcg cgcgtttcgg tgatgacggt 180
gaaaacctct ga 192
<210> 8
<211> 143
<212> DNA
<213> 未知
<400> 8
cgcagccatg acccagtcac gtagcgatag cggagtgtat actggcttaa ctatgcggca 60
tcagagcaga ttgtactgag agtgcaccat atatgcggtg tgaaataccg cacagatgcg 120
taaggagaaa ataccgcatc agg 143
<210> 9
<211> 816
<212> DNA
<213> 未知
<400> 9
atgagccata ttcaacggga aacgtcttgc tctaggccgc gattaaattc caacatggat 60
gctgatttat atgggtataa atgggctcgc gataatgtcg ggcaatcagg tgcgacaatc 120
tatcgattgt atgggaagcc cgatgcgcca gagttgtttc tgaaacatgg caaaggtagc 180
gttgccaatg atgttacaga tgagatggtc agactaaact ggctgacgga atttatgcct 240
cttccgacca tcaagcattt tatccgtact cctgatgatg catggttact caccactgcg 300
atccccggga aaacagcatt ccaggtatta gaagaatatc ctgattcagg tgaaaatatt 360
gttgatgcgc tggcagtgtt cctgcgccgg ttgcattcga ttcctgtttg taattgtcct 420
tttaacagcg atcgcgtatt tcgtctcgct caggcgcaat cacgaatgaa taacggtttg 480
gttgatgcga gtgattttga tgacgagcgt aatggctggc ctgttgaaca agtctggaaa 540
gaaatgcata aacttttgcc attctcaccg gattcagtcg tcactcatgg tgatttctca 600
cttgataacc ttatttttga cgaggggaaa ttaataggtt gtattgatgt tggacgagtc 660
ggaatcgcag accgatacca ggatcttgcc atcctatgga actgcctcgg tgagttttct 720
ccttcattac agaaacggct ttttcaaaaa tatggtattg ataatcctga tatgaataaa 780
ttgcagtttc atttgatgct cgatgagttt ttctaa 816
<210> 10
<211> 589
<212> DNA
<213> 未知
<400> 10
tttccatagg ctccgccccc ctgacgagca tcacaaaaat cgacgctcaa gtcagaggtg 60
gcgaaacccg acaggactat aaagatacca ggcgtttccc cctggaagct ccctcgtgcg 120
ctctcctgtt ccgaccctgc cgcttaccgg atacctgtcc gcctttctcc cttcgggaag 180
cgtggcgctt tctcatagct cacgctgtag gtatctcagt tcggtgtagg tcgttcgctc 240
caagctgggc tgtgtgcacg aaccccccgt tcagcccgac cgctgcgcct tatccggtaa 300
ctatcgtctt gagtccaacc cggtaagaca cgacttatcg ccactggcag cagccactgg 360
taacaggatt agcagagcga ggtatgtagg cggtgctaca gagttcttga agtggtggcc 420
taactacggc tacactagaa ggacagtatt tggtatctgc gctctgctga agccagttac 480
cttcggaaaa agagttggta gctcttgatc cggcaaacaa accaccgctg gtagcggtgg 540
tttttttgtt tgcaagcagc agattacgcg cagaaaaaaa ggatctcaa 589
<210> 11
<211> 456
<212> DNA
<213> 未知
<400> 11
aaattgtaaa cgttaatatt ttgttaaaat tcgcgttaaa tttttgttaa atcagctcat 60
tttttaacca ataggccgaa atcggcaaaa tcccttataa atcaaaagaa tagaccgaga 120
tagggttgag tgttgttcca gtttggaaca agagtccact attaaagaac gtggactcca 180
acgtcaaagg gcgaaaaacc gtctatcagg gcgatggccc actacgtgaa ccatcaccct 240
aatcaagttt tttggggtcg aggtgccgta aagcactaaa tcggaaccct aaagggagcc 300
cccgatttag agcttgacgg ggaaagccgg cgaacgtggc gagaaaggaa gggaagaaag 360
cgaaaggagc gggcgctagg gcgctggcaa gtgtagcggt cacgctgcgc gtaaccacca 420
cacccgccgc gcttaatgcg ccgctacagg gcgcgt 456
<210> 12
<211> 159
<212> DNA
<213> 未知
<400> 12
aatagtgact ctgaatgtcc cctgtcccac gatgggtact gcctccatga tggtgtgtgc 60
atgtatattg aagcattgga caagtatgca tgcaactgtg ttgttggcta catcggggag 120
cgatgtcagt accgagacct gaagtggtgg gaactgcgc 159
<210> 13
<211> 468
<212> DNA
<213> 未知
<400> 13
atggcagccg ggagcatcac cacgctgccc gccttgcccg aggatggcgg cagcggcgcc 60
ttcccgcccg gccacttcaa ggaccccaag cggctgtact gcaaaaacgg gggcttcttc 120
ctgcgcatcc accccgacgg ccgagttgac ggggtccggg agaagagcga ccctcacatc 180
aagctacaac ttcaagcaga agagagagga gttgtgtcta tcaaaggagt gtgtgctaac 240
cgttacctgg ctatgaagga agatggaaga ttactggctt ctaaatgtgt tacggatgag 300
tgtttctttt ttgaacgatt ggaatctaat aactacaata cttaccggtc aaggaaatac 360
accagttggt atgtggcact gaaacgaact gggcagtata aacttggatc caaaacagga 420
cctgggcaga aagctatact ttttcttcca atgtctgcta agagctga 468
<210> 14
<211> 462
<212> DNA
<213> 未知
<400> 14
atggggaaaa tcagcagtct tccaactcaa ttatttaaga tctgcctctg tgacttcttg 60
aagataaaga tacacatcat gtcgtcttca catctcttct acctggcact ctgcttgctc 120
acctttacca gctcggccac agccggacca gagacccttt gcggggctga gctggtggac 180
gctcttcagt tcgtgtgtgg accaaggggc ttttacttca acaagcccac aggctatggc 240
tccagcattc ggagggcacc acagacgggc attgtggatg agtgttgctt ccggagctgt 300
gatctgagga ggctggagat gtactgtgct ccgctgaagc ctacaaagtc agctcgttcc 360
atccgggccc agcgccacac tgacatgccc aagactcaga aggaagtaca cttgaagaac 420
acaagtagag gaagtgcagg aaacaagacc tacagaatgt ag 462
<210> 15
<211> 5037
<212> DNA
<213> 未知
<400> 15
atgcaccctg ggttgtggct gctcctggtt acgttgtgcc tgaccgagga actggcagca 60
gcgggagaga agtcttatgg aaagccatgt gggggccagg actgcagtgg gagctgtcag 120
tgttttcctg agaaaggagc gagaggacga cctggaccaa ttggaattca aggcccaaca 180
ggtcctcaag gattcactgg ctctactggt ttatcgggat tgaaaggaga aaggggtttc 240
ccaggccttc tgggacctta tggaccaaaa ggagataagg gtcccatggg agttcctggc 300
tttcttggca tcaatgggat tccgggccac cctggacaac caggccccag aggcccacct 360
ggtctggatg gctgtaatgg aactcaagga gctgttggat ttccaggccc tgatggctat 420
cctgggcttc tcggaccacc cgggcttcct ggtcagaaag gatcaaaagg tgaccctgtc 480
cttgctccag gtagtttcaa aggaatgaag ggggatcctg ggctgcctgg actggatgga 540
atcactggcc cacaaggagc acccggattt cctggagctg taggacctgc aggaccacca 600
ggattacaag gtcctccagg gcctcctggt cctcttggtc ctgatgggaa tatggggcta 660
ggttttcaag gagagaaagg agtcaagggg gatgttggcc tccctggccc agcaggacct 720
ccaccatcta ctggagagct ggaattcatg ggattcccca aagggaagaa aggatccaag 780
ggtgaaccag ggcctaaggg ttttccaggc ataagtggcc ctccaggctt cccgggcctt 840
ggaactactg gagaaaaggg agaaaaggga gaaaagggaa tccctggttt gccaggacct 900
aggggtccca tgggttcaga aggagtccaa ggccctccag ggcaacaggg caagaaaggg 960
accctgggat ttcctgggct taatggattc caaggaattg agggtcaaaa gggtgacatt 1020
ggcctgccag gcccagatgt tttcatcgat atagatggtg ctgtgatctc aggtaatcct 1080
ggagatcctg gtgtacctgg cctcccaggc cttaaaggag atgaaggcat ccaaggccta 1140
cgtggccctt ctggtgtccc tggattgcca gcattatcag gtgtcccagg agccctaggg 1200
cctcagggat ttccagggct gaagggggac caaggaaacc caggccgtac cacaattgga 1260
gcagctggcc tccctggcag agatggtttg ccaggcccac caggtccacc aggcccacct 1320
agtccagaat ttgagactga aactctacac aacaaagagt cagggttccc tggtctccga 1380
ggagaacaag gtccaaaagg aaacctaggc ctcaaaggaa taaaaggaga ctcaggtttc 1440
tgtgcttgtg acggtggtgt tcccaacact ggaccacccg gggaaccagg cccacctggt 1500
ccatggggtc tcataggcct tccaggcctt aaaggagcca gaggagatcg aggctctggg 1560
ggtgcacagg gcccagcagg ggctccaggc ttagttgggc ctctgggtcc ttcaggaccc 1620
aaaggaaaga agggggaacc aattctcagt acaatccaag gaatgccagg agatcggggt 1680
gattctggct cccagggctt ccgtggtgta ataggagaac caggcaagga cggagtacca 1740
ggtttaccag gtctgccagg ccttccgggt gatggtggac agggcttccc aggtgaaaag 1800
gggttacctg gacttcctgg tgaaaaaggc catcctggtc cacctggcct cccaggaaat 1860
gggttaccag gacttcctgg accccgtggg cttcctggag ataaaggcaa ggatggatta 1920
ccgggacaac aaggccttcc cggatctaag ggaatcaccc tgccctgtat tattcctggg 1980
tcatacggtc catcaggatt tccaggcact cccggattcc caggccctaa agggtctcga 2040
ggcctccctg ggaccccagg ccagcctggg tcaagtggaa gtaaaggaga gccagggagt 2100
ccaggattgg ttcatcttcc tgaattacca ggatttcctg gacctcgtgg ggagaagggc 2160
ttgcctgggt ttcctgggct ccctggaaaa gatggcttgc ctgggatgat tggcagtcca 2220
ggcttacctg gttccaaggg agccactggt gacatctttg gtgctgaaaa tggtgctccg 2280
ggggaacaag gcctacaagg attaacaggg cacaaaggat ttcttggaga ctctggcctt 2340
ccaggactca agggtgtgca cgggaagcct ggcttactag gccccaaagg tgagcggggc 2400
agccctggga caccaggaca ggtgggacag ccaggcaccc caggatctag tggtccatat 2460
ggcatcaagg gcaaatctgg gctcccagga gcaccaggct tcccaggcat ctcaggacat 2520
cctggaaaga aaggaacaag aggcaagaaa ggtcctcctg gatcaattgt aaagaaaggg 2580
ctgccagggc taaaaggcct tcctggaaat ccaggcctag taggactgaa aggaagccca 2640
ggctctccag gggtcgctgg gttgccagcc ctctctggac ccaagggaga gaaggggtct 2700
gttggattcg taggttttcc aggaatacca ggtctgcctg gtatttctgg aacaagagga 2760
ttaaaaggaa ttccaggatc aactggaaaa atgggaccat ctggacgcgc tggtactcct 2820
ggtgaaaagg gagacagagg caatccgggg ccagtcggaa tacctagtcc aagacgtcca 2880
atgtcaaacc tttggctcaa aggagacaaa ggctctcaag gctcagccgg atccaatgga 2940
tttcctgggc caagaggtga caaaggagag gctggtcgac ctggaccacc aggcctacct 3000
ggagctcctg gcctcccagg cattatcaaa ggagttagtg gaaagccagg gccccctggc 3060
ttcatgggaa tccggggttt acctggcctg aaggggtcct ctgggatcac aggtttccca 3120
ggaatgccag gagaaagtgg ttcacaaggt atcagagggt cgcctggact cccaggagca 3180
tctggtctcc caggcctgaa aggagacaac ggccagacag ttgaaatttc cggtagccca 3240
ggacccaagg gacagcctgg cgaatctggt tttaaaggca caaaaggaag agatggacta 3300
ataggcaata taggcttccc tggaaacaaa ggtgaagatg gaaaagttgg tgtttctgga 3360
gatgttggcc ttcctggagc tccaggattt ccaggagttg ccggcatgag aggagaacca 3420
ggacttccag gttcttctgg tcaccaaggg gcaattgggc ctctaggatc ccccggatta 3480
ataggaccca aaggcttccc tggatttcct ggtttacatg gactgaatgg gcttccgggc 3540
accaagggta cccatggcac tccaggacct agtatcaccg gtgtgcctgg gcctgctggt 3600
ctccctggac ccaaaggaga aaaaggatat ccaggaattg gcatcggagc tccagggaag 3660
ccgggcctga gagggcaaaa aggtgatcga ggtttcccag gtctccaggg ccctgctggt 3720
ctccccggtg ccccaggcat ctccttgccc tcactcatag caggacagcc tggtgacccc 3780
gggcgaccag gcctagatgg agaacgaggc cgcccaggcc ccgctggacc cccaggtccc 3840
cctgggccat cctcgaatca aggcgacacc ggagaccctg gcttccctgg aattccaggt 3900
ttttctggcc tccctggaga gctaggactg aaaggcatga gaggtgagcc tggcttcatg 3960
gggactccag gcaaggttgg gccacctgga gacccaggat ttcccggaat gaaggggaag 4020
gcaggggcaa gaggctcttc tggcctccaa ggtgatcctg gacaaacacc aactgcagaa 4080
gctgtccagg ttcctcctgg acccttgggt ctaccaggga tcgatggcat ccctggcctc 4140
actggggacc ctggggctca aggccctgta ggcctacaag gctccaaagg tttacctggc 4200
atccccggta aagatggccc cagtgggctc ccaggcccac ctggggctct tggtgatcct 4260
ggtctgcctg gactgcaagg ccctccagga tttgaaggag ctccagggca gcaaggcccc 4320
ttcgggatgc ctggaatgcc tggccagagc atgagagtgg gctacacgtt ggtaaagcac 4380
agccagtcgg aacaggtgcc cccgtgtccc atcgggatga gccagctgtg ggtggggtac 4440
agcttactgt ttgtggaggg gcaagagaaa gcccacaacc aggacctggg ctttgctggc 4500
tcctgtctgc cccgcttcag caccatgccc ttcatctact gcaacatcaa cgaggtgtgc 4560
cactatgcca ggcgcaatga taaatcttac tggctctcca ctaccgcccc tatccccatg 4620
atgcccgtca gccagaccca gattccccag tacatcagcc gctgctctgt gtgtgaggca 4680
ccctcgcaag ccattgctgt gcacagccag gacatcacca tcccgcagtg ccccctgggc 4740
tggcgcagcc tctggattgg gtactctttc ctcatgcaca ctgccgctgg tgccgagggt 4800
ggaggccagt ccctggtctc acctggctcc tgcctagagg actttcgggc cactcctttc 4860
atcgaatgca gtggtgcccg aggcacctgc cactactttg caaacaagta cagtttctgg 4920
ttgaccacag tggaggagag gcagcagttt ggggagttgc ctgtgtctga aacgctgaaa 4980
gctgggcagc tccacactcg agtcagtcgc tgccaggtgt gtatgaaaag cctgtag 5037
<210> 16
<211> 23
<212> DNA
<213> 未知
<400> 16
acttctcttt ttccacccca ttt 23
Claims (6)
1.一种冻干医用敷料的制备方法,其特征在于,包括:
以表达载体T7启动子-lac操纵子-目的蛋白-6xHis-T7标记区-6xHis-T7终止子,附加体lac-rop-bom-ori-kanR,ori系统构建并合成质粒;
将所述质粒与感受态细菌悬液混匀,并进行培养;
将经由IPTG诱导后的菌液进行发酵,并洗脱得到所述目的蛋白;
以重量份计,加入2份寡肽-1、0.5份D-柠檬烯、1份甘油、0.5份所述目的蛋白、5份透明质酸钠、1份HA-800透明质酸、0.5份神经酰胺、1份银耳提取物、0.15份EDTA-二钠和1份壳聚糖;
加入纯水定容至所需重量,将混合液进行剪切和脱气后采用低温蒸发蒸干及冻干操作,具体步骤包括:
将所需量的原料置于烧杯中进行湿混并定容;
采用高剪切混合乳化机对原料进行剪切;
将剪切后的原料转移至脱气瓶中,并在磁力搅拌下抽真空脱气至无气泡为止;
将混合物在4-8℃、真空度100毫巴的条件下蒸发蒸干20分钟;
将混合物在液氮下速冻,设置低温冻干箱的冷阱温度为-40度,真空度为0.1毫巴,板层温度为-20度,混合物在-110度冻干15分钟后,板层温度由-20度升至8度,继续冻干60分钟,压升试验合格后,由所述冻干箱取出成固体,实现冷冻干燥,形成冻干医用敷料。
2.根据权利要求1所述的冻干医用敷料的制备方法,其特征在于,所述将所述质粒与感受态细菌悬液混匀并进行培养具体包括:
将感受态细菌悬液加入离心管中,置于冰上;
向所述离心管中加入所述质粒,并用移液器轻柔混匀,冰上静置20-30分钟;
向所述离心管中加入LB液体培养基,混匀后在37℃环境下振荡培养;
取所述离心管中的细菌培养液涂布至含有卡那霉素的LB固体培养基上;
在37℃环境下倒置培养12-16小时,菌落生长良好而未互相重叠时取出;
将所述菌落接种至LA液体培养基中,在37℃环境下以200rpm振摇培养;
培养至OD600达到0.6-0.8时,加入IPTG进行诱导,并置于37℃摇床继续培养4小时。
3.根据权利要求1所述的冻干医用敷料的制备方法,其特征在于,所述将经由IPTG诱导后的菌液进行发酵并洗脱得到所述目的蛋白具体包括:
将诱导后的菌液加入含有卡那霉素的LB液体培养基中,在37℃环境下振荡培养,待LB液体培养基浑浊后倒入发酵罐中发酵12-24小时;
取出发酵后的LB液体培养基装入离子交换柱,根据所述目的蛋白进行条件选择,洗脱得到所述目的蛋白。
4.根据权利要求1所述的冻干医用敷料的制备方法,其特征在于,所述目的蛋白包括寡肽-1、碱性成纤维蛋白、角质蛋白、胶原蛋白、纤维连接蛋白、原纤蛋白、再生蛋白、转化因子、胰岛素样生长因子和转化因子、透明质酸、白介素、干扰素、肿瘤坏死因子、穿孔素和细胞毒因子。
5.根据权利要求1所述的冻干医用敷料的制备方法,其特征在于,剪切工艺过程的剪切速率为2000rpm,剪切时间为30分钟。
6.一种冻干医用冷敷贴,其特征在于,利用如上述权利要求1至5中任一项所述的冻干医用敷料的制备方法所制备出的冻干医用敷料,将所述冻干医用敷料均匀敷设于膜布上,形成冻干医用冷敷贴。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010566174.XA CN111671572B (zh) | 2020-06-19 | 2020-06-19 | 冻干医用敷料的制备方法和冻干医用冷敷贴 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010566174.XA CN111671572B (zh) | 2020-06-19 | 2020-06-19 | 冻干医用敷料的制备方法和冻干医用冷敷贴 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111671572A CN111671572A (zh) | 2020-09-18 |
CN111671572B true CN111671572B (zh) | 2022-06-14 |
Family
ID=72455876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010566174.XA Active CN111671572B (zh) | 2020-06-19 | 2020-06-19 | 冻干医用敷料的制备方法和冻干医用冷敷贴 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111671572B (zh) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110314033A (zh) * | 2019-07-22 | 2019-10-11 | 广州艾蓓生物科技有限公司 | 一种医用冷敷贴 |
CN111202868A (zh) * | 2020-01-17 | 2020-05-29 | 重庆大学 | 用于制备角蛋白凝胶敷料的组合物及其制备方法和应用 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2602947A1 (en) * | 2005-03-24 | 2006-09-28 | Straumann Holding Ag | Method for protein purification comprising heat incubation in acetic acidic solution |
CN102180962B (zh) * | 2011-03-17 | 2012-06-13 | 中山大学 | 黑青斑河鲀干扰素IFNγ1及其制备方法和应用 |
CN108210887A (zh) * | 2017-11-27 | 2018-06-29 | 南京天纵易康生物科技股份有限公司 | 一种医用冷敷贴及其制备方法 |
CN109846859A (zh) * | 2018-12-29 | 2019-06-07 | 广州艾蓓生物科技有限公司 | 一种修复型医用冷敷贴及其制备方法 |
CN112675353A (zh) * | 2020-12-30 | 2021-04-20 | 江苏聚源医疗技术有限公司 | 重组胶原蛋白敷料及其制备方法 |
-
2020
- 2020-06-19 CN CN202010566174.XA patent/CN111671572B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110314033A (zh) * | 2019-07-22 | 2019-10-11 | 广州艾蓓生物科技有限公司 | 一种医用冷敷贴 |
CN111202868A (zh) * | 2020-01-17 | 2020-05-29 | 重庆大学 | 用于制备角蛋白凝胶敷料的组合物及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
CN111671572A (zh) | 2020-09-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10500311B2 (en) | Cell structure for brain damage treatment, production method thereof, and brain damage treatment agent | |
Cui et al. | Collagen-tussah silk fibroin hybrid scaffolds loaded with bone mesenchymal stem cells promote skin wound repair in rats | |
CN111187347B (zh) | 重组胶原蛋白、重组胶原海绵材料及其制备方法和应用 | |
JP6535072B2 (ja) | 生体親和性高分子多孔質体の製造方法、生体親和性高分子多孔質体、生体親和性高分子ブロック並びに細胞構造体 | |
WO2020257281A1 (en) | Mitochondrial treatment of organs for transplantation | |
Fujita et al. | Myocardial cell sheet therapy and cardiac function | |
Demirdögen et al. | Neovascularization by bFGF releasing hyaluronic acid–gelatin microspheres: in vitro and in vivo studies | |
CN105025940A (zh) | 细胞移植用细胞结构体、生物亲和性高分子块及它们的制造方法 | |
CN105521483A (zh) | 复合生物活性因子的冻干方法及冻干粉 | |
Bushkalova et al. | Alginate-chitosan PEC scaffolds: A useful tool for soft tissues cell therapy | |
CN108159078A (zh) | 一种细胞生长因子冻干粉、制备方法及应用 | |
TW201442747A (zh) | 白蛋白組織支架 | |
Yao et al. | Fabrication of water-stable silk fibroin scaffolds through self-assembly of proteins | |
CN107715181B (zh) | 一种可生物降解的组织工程皮肤支架的制备方法 | |
EP3156080A1 (en) | Cell structure and method for producing cell structure | |
CN111671572B (zh) | 冻干医用敷料的制备方法和冻干医用冷敷贴 | |
KR101349183B1 (ko) | 3차원 세포배양으로 수득한 조건 배지를 유효성분으로 포함하는 허혈성 질환 치료용 약학적 조성물 | |
Rask et al. | Hydrogels modified with QHREDGS peptide support cardiomyocyte survival in vitro and after sub-cutaneous implantation | |
CN113583455B (zh) | 一种胶原蛋白-改性壳聚糖双网络水凝胶、生物墨水、制备方法和应用 | |
CN109182129B (zh) | 一种细菌保护剂及其应用 | |
CN101505782A (zh) | 保存和/或制备用于移植的器官或组织的方法和组合物 | |
RU2542385C2 (ru) | Способ получения фармацевтической композиции для индукции развития кровеносных сосудов в тканях, фармацевтическая композиция, полученная этим способом, и способ лечения ишемии тканей и/или органов человека | |
CN104587525A (zh) | 包含血小板及透明质酸的支架及其制备方法 | |
Yokomuro et al. | Effect of cryopreservation on cell proliferation and immunogenicity of transplanted human heart cells | |
CN114451397B (zh) | 用于保存干细胞的凝胶制剂及其制备方法以及含有凝胶制剂和干细胞的药物组合物 |
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 |