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WO2017107996A1 - 一种具有结构记忆特性的细胞生长支架 - Google Patents

一种具有结构记忆特性的细胞生长支架 Download PDF

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WO2017107996A1
WO2017107996A1 PCT/CN2016/111925 CN2016111925W WO2017107996A1 WO 2017107996 A1 WO2017107996 A1 WO 2017107996A1 CN 2016111925 W CN2016111925 W CN 2016111925W WO 2017107996 A1 WO2017107996 A1 WO 2017107996A1
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collagen
sponge
collagen sponge
prepare
patent document
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French (fr)
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孙文全
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Bei Jing Rui Jian Gaoke Biotechnology Co ltd
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Bei Jing Rui Jian Gaoke Biotechnology Co ltd
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Priority to US15/744,220 priority Critical patent/US20180200407A1/en
Priority to EP16877806.6A priority patent/EP3305340B1/en
Priority to JP2018500906A priority patent/JP6893910B2/ja
Publication of WO2017107996A1 publication Critical patent/WO2017107996A1/zh
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    • 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
    • A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
    • A61L27/3604—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix characterised by the human or animal origin of the biological material, e.g. hair, fascia, fish scales, silk, shellac, pericardium, pleura, renal tissue, amniotic membrane, parenchymal tissue, fetal tissue, muscle tissue, fat tissue, enamel
    • 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
    • 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
    • A61L27/26—Mixtures of macromolecular compounds
    • 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
    • A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
    • 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
    • A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
    • A61L27/3604—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix characterised by the human or animal origin of the biological material, e.g. hair, fascia, fish scales, silk, shellac, pericardium, pleura, renal tissue, amniotic membrane, parenchymal tissue, fetal tissue, muscle tissue, fat tissue, enamel
    • A61L27/3633—Extracellular matrix [ECM]
    • 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
    • A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
    • A61L27/3683—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix subjected to a specific treatment prior to implantation, e.g. decellularising, demineralising, grinding, cellular disruption/non-collagenous protein removal, anti-calcification, crosslinking, supercritical fluid extraction, enzyme treatment
    • 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
    • A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
    • A61L27/3683—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix subjected to a specific treatment prior to implantation, e.g. decellularising, demineralising, grinding, cellular disruption/non-collagenous protein removal, anti-calcification, crosslinking, supercritical fluid extraction, enzyme treatment
    • A61L27/3687—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix subjected to a specific treatment prior to implantation, e.g. decellularising, demineralising, grinding, cellular disruption/non-collagenous protein removal, anti-calcification, crosslinking, supercritical fluid extraction, enzyme treatment characterised by the use of chemical agents in the treatment, e.g. specific enzymes, detergents, capping agents, crosslinkers, anticalcification agents
    • 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
    • A61L27/52—Hydrogels or hydrocolloids
    • 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
    • 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
    • A61L2400/16—Materials with shape-memory or superelastic properties
    • 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
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/34—Materials or treatment for tissue regeneration for soft tissue reconstruction

Definitions

  • the present invention relates to a cell growth scaffold for use in the fields of materials science, tissue engineering and regenerative medicine, and more particularly to a cell growth scaffold having structural memory properties.
  • a variety of filling materials and dressings for soft tissue defect repair have been developed at home and abroad, including hydrogels and porous sponge fillers prepared based on synthetic polymer materials and natural biological materials.
  • Collagen hydrogel can be prepared by using animal tissue as raw material and purified by acid treatment or enzymatic treatment. Proper chemical cross-linking treatment can improve the stability of collagen in hydrogel preparations. Easy to be degraded.
  • Collagen suspension or hydrogel can be prepared by freeze-drying into a porous collagen sponge material.
  • Porous collagen sponge materials After further chemical cross-linking treatment, it can not only improve the stability of collagen in sponge material, but also preserve the porous collagen sponge material. Structural characteristics. Porous collagen sponge materials have been widely used in clinical medicine for hemostasis of wounds, filling of tissue defect sites, and drug carriers.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Dermatology (AREA)
  • Medicinal Chemistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Botany (AREA)
  • Molecular Biology (AREA)
  • Dispersion Chemistry (AREA)
  • Urology & Nephrology (AREA)
  • Zoology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biophysics (AREA)
  • Materials For Medical Uses (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)

Abstract

一种有结构记忆特性的细胞生长支架，其是通过将微纤维状或絮状脱细胞组织基质材料和颗粒状经酸化处理的水凝胶状脱细胞组织基质材料按比例混合后，再经注模、冰冻挤压、重新交织和辐射工序制成的多孔材料。该支架无化学交联、有生物活性、有稳定三维结构和有结构记忆特征。该支架具有优良的生物兼容性和完全的生物可降解性，支持细胞生长，同时支持体内和体外的组织和器官的生长，适于软组织创伤和缺损的修复。

Description

一种具有结构记忆特性的细胞生长支架 技术领域
本发明涉及一种应用于材料科学、组织工程学和再生医学领域的细胞生长支架，具体的说是一种具有结构记忆特性的细胞生长支架。
背景技术
因病变、创伤或外科手术常致使人体软组织的缺损，使人体自身机体重新生长所需要的软组织是现代医学需要解决的一个难题。国内外已经研发出多种用于软组织缺损修复的填充材料和敷料，包括基于人工合成高分子材料和天然生物材料制备而成的水凝胶及多孔海绵类填充材料。以动物组织为原料，经过酸处理或酶处理后提纯的胶原蛋白，可以制备成胶原蛋白水凝胶，适当的化学交联处理可提高水凝胶制剂中胶原蛋白的稳定性，在体内较不易于被降解。胶原蛋白悬浮液或水凝胶可以经过冻干制备成多孔的胶原海绵材料，经过进一步的化学交联固定处理，不仅可以增进海绵材料中胶原蛋白的稳定性，同时也以保留胶原海绵材料的多孔结构特性。多孔胶原海绵材料在临床医学上已经广泛地应用于创口的止血、组织缺损部位的填充，以及药物载体等。

Claims (1)

  1. 中国专利文献CN1235947C、CN101549171B分别提供了制备此类胶原海绵材料的具体方法。其中，CN1235947C专利文献提供的技术方案是在常温下用盐酸或醋酸溶液浸泡含有丰富胶原蛋白的动物组织(皮肤、软骨、板筋、肌腱等)，酶解后获得动物组织细胞外胶原框架，研磨和匀浆处理获得胶原悬浮液，将胶原悬浮液置入模具，加压成型和冻干制备胶原海绵填充剂，在冻干前或冻干后用化学交联剂处理。专利文献CN101549171B提出了在提取出的高纯度II型胶原溶液后，用聚乙二醇对II型胶原溶液进行浓缩，然后用含碳化二亚胺和N-羟基琥珀酰亚胺作交联剂对浓缩后的II型胶原进行交联，冷冻干燥制备得到的胶原海绵。
    以上技术方案均采用化学交联的方式获得胶原海绵，但缺陷也是显而易见的：经酸化和酶解制备的胶原海绵稳定性差，缺少生物活性及有降解过快等缺点。
    除此之外，在技术领域中也有在胶原海绵制备过程中添加透明质酸钠、壳聚糖、甲壳素、硫酸软骨素等其他生物大分子材料来制备成复合海绵材料并改善了胶原海绵的生物性能。例如，中国专利文献CN101862475B披露的技术方案是在胶原溶液中添加了透明质酸钠，经过化学交联制备得到复合的胶原材料。中国专利文献CN103007336A是在鱼皮胶原中添加了壳聚糖，冷冻干燥后经交联再进行二次冷冻干燥制备鱼皮胶原基复合海绵。尽管化学交联处理提高了胶原海绵的稳定性，含有透明质酸和壳聚糖等其他生物大分子的胶原海绵复合材料
PCT/CN2016/111925 2015-12-25 2016-12-24 一种具有结构记忆特性的细胞生长支架 Ceased WO2017107996A1 (zh)

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US15/744,220 US20180200407A1 (en) 2015-12-25 2016-12-24 Cell-growing scaffold having structure memory property
EP16877806.6A EP3305340B1 (en) 2015-12-25 2016-12-24 Cell-growing scaffold having structure memory property
JP2018500906A JP6893910B2 (ja) 2015-12-25 2016-12-24 構造記憶特性を有する細胞増殖用足場

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CN201510986268.1A CN106913908B (zh) 2015-12-25 2015-12-25 一种具有结构记忆特性的细胞生长支架
CN201510986268.1 2015-12-25

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