JPWO2015129881A1 - 細胞の立体構造体の製造方法 - Google Patents
細胞の立体構造体の製造方法 Download PDFInfo
- Publication number
- JPWO2015129881A1 JPWO2015129881A1 JP2016505334A JP2016505334A JPWO2015129881A1 JP WO2015129881 A1 JPWO2015129881 A1 JP WO2015129881A1 JP 2016505334 A JP2016505334 A JP 2016505334A JP 2016505334 A JP2016505334 A JP 2016505334A JP WO2015129881 A1 JPWO2015129881 A1 JP WO2015129881A1
- Authority
- JP
- Japan
- Prior art keywords
- cell
- dimensional structure
- gel
- cells
- polymer solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 229920000642 polymer Polymers 0.000 claims abstract description 79
- 230000007704 transition Effects 0.000 claims abstract description 16
- 238000012258 culturing Methods 0.000 claims abstract description 5
- 229920001661 Chitosan Polymers 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- -1 hydroxybutyl Chemical group 0.000 claims description 8
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 210000004027 cell Anatomy 0.000 description 117
- 239000000499 gel Substances 0.000 description 67
- 239000000243 solution Substances 0.000 description 54
- 210000001519 tissue Anatomy 0.000 description 17
- 239000010419 fine particle Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 7
- 238000004113 cell culture Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 210000000056 organ Anatomy 0.000 description 7
- 238000001879 gelation Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000010146 3D printing Methods 0.000 description 5
- 230000021164 cell adhesion Effects 0.000 description 4
- 239000006143 cell culture medium Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 210000002950 fibroblast Anatomy 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000006144 Dulbecco’s modified Eagle's medium Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000000017 hydrogel Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical compound CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 description 2
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 2
- 108010035532 Collagen Proteins 0.000 description 2
- 102000008186 Collagen Human genes 0.000 description 2
- 102000016942 Elastin Human genes 0.000 description 2
- 108010014258 Elastin Proteins 0.000 description 2
- 108010067306 Fibronectins Proteins 0.000 description 2
- 102000016359 Fibronectins Human genes 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 108010085895 Laminin Proteins 0.000 description 2
- 102000007547 Laminin Human genes 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- GLNADSQYFUSGOU-GPTZEZBUSA-J Trypan blue Chemical compound [Na+].[Na+].[Na+].[Na+].C1=C(S([O-])(=O)=O)C=C2C=C(S([O-])(=O)=O)C(/N=N/C3=CC=C(C=C3C)C=3C=C(C(=CC=3)\N=N\C=3C(=CC4=CC(=CC(N)=C4C=3O)S([O-])(=O)=O)S([O-])(=O)=O)C)=C(O)C2=C1N GLNADSQYFUSGOU-GPTZEZBUSA-J 0.000 description 2
- 102000004142 Trypsin Human genes 0.000 description 2
- 108090000631 Trypsin Proteins 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 230000004663 cell proliferation Effects 0.000 description 2
- 239000006285 cell suspension Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920001436 collagen Polymers 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 229920002549 elastin Polymers 0.000 description 2
- 239000012091 fetal bovine serum Substances 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 239000003102 growth factor Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000012588 trypsin Substances 0.000 description 2
- 210000003556 vascular endothelial cell Anatomy 0.000 description 2
- 230000035899 viability Effects 0.000 description 2
- IPJDHSYCSQAODE-UHFFFAOYSA-N 5-chloromethylfluorescein diacetate Chemical compound O1C(=O)C2=CC(CCl)=CC=C2C21C1=CC=C(OC(C)=O)C=C1OC1=CC(OC(=O)C)=CC=C21 IPJDHSYCSQAODE-UHFFFAOYSA-N 0.000 description 1
- 210000003771 C cell Anatomy 0.000 description 1
- 108010037362 Extracellular Matrix Proteins Proteins 0.000 description 1
- 102000010834 Extracellular Matrix Proteins Human genes 0.000 description 1
- 102000018233 Fibroblast Growth Factor Human genes 0.000 description 1
- 108050007372 Fibroblast Growth Factor Proteins 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 229960001126 alginic acid Drugs 0.000 description 1
- 150000004781 alginic acids Chemical class 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000648 calcium alginate Substances 0.000 description 1
- 235000010410 calcium alginate Nutrition 0.000 description 1
- 229960002681 calcium alginate Drugs 0.000 description 1
- 210000004413 cardiac myocyte Anatomy 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003013 cytotoxicity Effects 0.000 description 1
- 231100000135 cytotoxicity Toxicity 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 210000002744 extracellular matrix Anatomy 0.000 description 1
- 229940126864 fibroblast growth factor Drugs 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- MSWZFWKMSRAUBD-IVMDWMLBSA-N glucosamine group Chemical group OC1[C@H](N)[C@@H](O)[C@H](O)[C@H](O1)CO MSWZFWKMSRAUBD-IVMDWMLBSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 210000005073 lymphatic endothelial cell Anatomy 0.000 description 1
- 108010082117 matrigel Proteins 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920003213 poly(N-isopropyl acrylamide) Polymers 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 210000002363 skeletal muscle cell Anatomy 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000000130 stem cell Anatomy 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/52—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
- A61L27/14—Macromolecular materials
- A61L27/20—Polysaccharides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/36—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
- A61L27/38—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 containing added animal cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/0068—General culture methods using substrates
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2533/00—Supports or coatings for cell culture, characterised by material
- C12N2533/70—Polysaccharides
- C12N2533/72—Chitin, chitosan
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Zoology (AREA)
- Dermatology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Medicinal Chemistry (AREA)
- Cell Biology (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Composite Materials (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Botany (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
該細胞含有高分子溶液を使用し、所望の立体構造を有する細胞含有高分子溶液のゲルを形成する工程、
細胞を該ゲル中で培養することにより細胞の立体構造体を形成する工程、および
該細胞含有高分子溶液のゲルをゾル化し感熱応答性高分子溶液と形成された細胞の立体構造体を分離する工程、
を含むことを特徴とする、所望の立体構造を有する、細胞の立体構造体の製造方法を提供するものである。
感熱応答性高分子は種々の高分子、例えば、ポリ(N-イソプロピルアクリルアミド)等の合成高分子、キトサン・セルロース等の水溶性生体高分子を疎水化した両親媒性高分子等が知られているが、本発明においては、それらの中でも、生体適合性、生分解性、細胞接着性、細胞増殖性およびそれらの特性の2つ以上に優れた感熱応答性高分子を使用するようにする。
しかしながら、使いやすさ故に、3Dバイオプリンティングに関する研究の大半はこのゲルを用いているのが現状である。
このように、本発明の製造方法は、足場材料を容易に除去可能である。
ヒドロキシブチルキトサン(HBC)の合成
反応容器にキトサン5.0 gを50 wt%水酸化カリウム水溶液中で6時間撹拌し、上澄み液をデカンテーションにより除去した。超純水200 mLと1,2-ブチレンオキシド30 mLを加え、80℃で6時間撹拌した。この時点で、部分的にヒドロキシブチル基で修飾されたキトサンが溶液中に分散した白濁溶液が得られる。濃塩酸を用いて固体を溶解させ、1,2-ブチレンオキシド30 mLを加えて80度で6時間撹拌した。反応後、反応溶液を80度の熱水に滴下することで、ヒドロキシブチルキトサン(HBC)を精製・回収した。キトサンへのヒドロキシブチル基の導入率は、グルコサミン1ユニット当たり2.5分子であった。
2.0 wt% HBC水溶液のゾル化−ゲル化の可逆性を説明するための図を図1に示した。
2.0 wt% HBC水溶液を、4℃から37℃の水浴へ、また37℃から4℃の水浴へ加熱・冷却を繰り返し行うことにより、可逆的転移(ゾル-ゲル転移)を確認した。この加熱・冷却サイクルを50回行ったが、その可逆性は変わらなかった。
濃度を変えて、上記のサイクルを行いゾル-ゲル転移を確認したところ、濃度1.5〜5.0 wt%のHBC溶液で同様にゾル・ゲル転移が可逆的に起こることが確かめられた。
細胞を含む状態でのHBCの感熱応答ゾル-ゲル転移の様子を説明するための図を図2に示した。
ヒト線維芽細胞を用いて、予めセルトラッカーグリーンで染色した細胞を内包したゲルの作製を行った。HBCを3.0 wt%で細胞培養液(ウシ胎児血清10%含むダルベッコ改変イーグル培地)に分散させ、冷蔵庫(4℃)で一晩放置することでHBCを溶解させた。
該HBC水溶液に、ヒト線維芽細胞を1x107個/mlの濃度で分散させた。
HBCのゲル化は非常に速いため、ガラス基板を予め37℃に温めておくことで、容易に望みの形状のゲル(図2左上、「AKASHI」のゲル文字)を描くことができた。作製したゲルの一部を蛍光観察したところ、細胞が安定かつ極めて高密度でゲル内に保持されていることが確認できた(図2左下)。
ゲルを作製して3時間後に、そのゲルを4℃で冷やした細胞培養液に移すと、ゲルは瞬時に溶解した(図2右上)。
回収した細胞を培養したところ、殆ど全ての細胞が安定に接着・伸展したことから、HBCの細胞毒性が低いことが確かめられた。
上記で作製した4℃に冷やした細胞含有HBC溶液(0.1 ml)を、37℃の上記と同じ細胞培養液へ射出してゲルを形成させた。該ゲルを細胞培養液中で3日間培養後、ゲルを4℃の細胞培養液が入った培養皿に移したところ、即座にゲルが溶解する様子が見られ、細胞塊を回収することができた。
回収した細胞の塊は、組織の色合いから、細胞層の積層数に換算して、少なくとも5−10層程度の厚さに相当した細胞の塊であり、すなわち細胞の立体構造体であると認められた。
また、組織の一部を切り取って、新しい培養皿で培養したところ、24時間後には大量の細胞が組織から遊走する様子が観察され、組織中の細胞の生存が確かめられた。
以上の結果から、本発明に従えば、生きた細胞の立体構造体が得られることが分かる。
HBCを3.0 wt%で細胞培養液(ウシ胎児血清10%含むダルベッコ改変イーグル培地)に分散させ、冷蔵庫(4℃)で一晩放置することでHBCを溶解させた。
該HBC水溶液に、ヒト線維芽細胞を1x107個/mlの濃度で分散させた。
上記分散液を、立体形状のハート型容器(幅約2.5cm、深さ約2cm、体積約8cm3、ステンレス製)に流し込んだ。
上記ハート型容器を、5%CO2雰囲気、温度37℃の環境下で、10分間放置することで、ゲルを形成させた。
形成したゲルを上記ハート型容器から取出し、培養皿(容器)に写し、37℃の培養液5mLを加えた後、5%CO2雰囲気、温度37℃の環境下で、3日間細胞培養を行った。
培養後、培養液を4℃の培地に交換することで、ハート形ゲルを溶解させた。溶解は、速やかに(30秒程)で完了した。
該無機微粒子含有高分子溶液を使用し、所望の立体構造を有する無機微粒子含有高分子溶液のゲルを形成する工程、
熱および/または光を照射し無機微粒子にコーティングした熱重合性物質および/または光重合性物質を重合し無機微粒子同士を結合させる無機微粒子の立体構造体を形成する工程、および
該無機微粒子含有高分子溶液のゲルをゾル化し感熱応答性高分子溶液と形成された無機微粒子の立体構造体を分離する工程、
を含むことを特徴とする、所望の立体構造を有する、無機微粒子の立体構造体の製造方法。
また、本発明は3Dバイオプリンティング技術の分野に利用可能な素材、製造方法を提供する点で、技術的にも経済的にも大きな波及効果を持つと期待される。
Claims (5)
- 4〜37℃でゾル―ゲル転移が可能なヒドロキシアルキルキトサン感熱応答性高分子と細胞を混合し、感熱応答性高分子が溶解した細胞含有高分子溶液を調製する工程、
該細胞含有高分子溶液を使用し、所望の立体構造を有する細胞含有高分子溶液のゲルを形成する工程、
細胞を該ゲル中で培養することにより細胞の立体構造体を形成する工程、および
該細胞含有高分子溶液のゲルをゾル化し感熱応答性高分子溶液と形成された細胞の立体構造体を分離する工程、
を含むことを特徴とする、所望の立体構造を有する、生きた細胞の立体構造体の製造方法。 - 所望の立体構造を有する細胞含有高分子溶液のゲルを、インクジェットプリンタまたは3Dプリンタを使用して形成する、請求項1に記載の製造方法。
- 感熱応答性高分子が、4〜37℃の温度範囲の低温側ゾルを形成し、4〜37℃の高温側でゲルを形成する請求項1〜2いずれかに記載の製造方法。
- アルキルが、炭素数C1〜C5である請求項1に記載の製造方法。
- 感熱応答性高分子が、ヒドロキシブチルキトサンである、請求項1〜4いずれかに記載の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014038550 | 2014-02-28 | ||
JP2014038550 | 2014-02-28 | ||
PCT/JP2015/055922 WO2015129881A1 (ja) | 2014-02-28 | 2015-02-27 | 細胞の立体構造体の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2015129881A1 true JPWO2015129881A1 (ja) | 2017-03-30 |
JP6521328B2 JP6521328B2 (ja) | 2019-05-29 |
Family
ID=54009194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016505334A Expired - Fee Related JP6521328B2 (ja) | 2014-02-28 | 2015-02-27 | 細胞の立体構造体の製造方法 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP6521328B2 (ja) |
WO (1) | WO2015129881A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2016334242B2 (en) | 2015-10-09 | 2020-09-24 | Deka Products Limited Partnership | Fluid pumping and bioreactor system |
JP2017086036A (ja) * | 2015-11-16 | 2017-05-25 | 国立大学法人大阪大学 | キトサン誘導体コート基材を用いる細胞培養物の製造方法 |
CN107362386A (zh) * | 2016-05-11 | 2017-11-21 | 惠众国际医疗器械(北京)有限公司 | 一种温敏性羟丁基壳聚糖止血凝胶及应用 |
CN107537055A (zh) * | 2016-06-28 | 2018-01-05 | 惠众国际医疗器械(北京)有限公司 | 一种温敏性羟丁基壳聚糖护创敷料的制备及其应用 |
US11254901B2 (en) | 2016-07-12 | 2022-02-22 | Deka Products Limited Partnership | System and method for printing tissue |
WO2018013727A1 (en) | 2016-07-12 | 2018-01-18 | Deka Products Limited Partnership | System and method for applying force to a device |
JPWO2018043153A1 (ja) * | 2016-08-31 | 2019-06-24 | 国立大学法人大阪大学 | 細胞培養担体、細胞培養担体作製キット、およびそれらを用いたゲル/細胞ハイブリッド組織の製造方法 |
US11299705B2 (en) | 2016-11-07 | 2022-04-12 | Deka Products Limited Partnership | System and method for creating tissue |
CN106552287A (zh) * | 2016-12-02 | 2017-04-05 | 上海其胜生物制剂有限公司 | 基于3d打印技术的羟丁基壳聚糖智能水凝胶支架及其制备方法 |
CN107400412B (zh) * | 2016-12-09 | 2018-08-24 | 杭州铭众生物科技有限公司 | 一种聚酯碳酸酯酸酐3d打印生物墨水及3d打印方法 |
CN106581762B (zh) * | 2016-12-09 | 2019-12-13 | 杭州铭众生物科技有限公司 | 一种3d打印生物墨水、制备方法及3d打印成型方法 |
US10570362B2 (en) | 2017-07-12 | 2020-02-25 | Deka Products Limited Partnership | System and method for transferring tissue |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008126459A (ja) * | 2006-11-20 | 2008-06-05 | Kanagawa Acad Of Sci & Technol | ゲルの製造方法及びそのための装置 |
WO2013040078A2 (en) * | 2011-09-12 | 2013-03-21 | Organovo, Inc. | Engineered tissues for in vitro research uses, arrays thereof, and methods of making the same |
-
2015
- 2015-02-27 JP JP2016505334A patent/JP6521328B2/ja not_active Expired - Fee Related
- 2015-02-27 WO PCT/JP2015/055922 patent/WO2015129881A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008126459A (ja) * | 2006-11-20 | 2008-06-05 | Kanagawa Acad Of Sci & Technol | ゲルの製造方法及びそのための装置 |
WO2013040078A2 (en) * | 2011-09-12 | 2013-03-21 | Organovo, Inc. | Engineered tissues for in vitro research uses, arrays thereof, and methods of making the same |
Non-Patent Citations (1)
Title |
---|
WEI YN.ET AL.: "3-D culture of human umbilical vein endothelial cells with reversible thermosensitive hydroxybutyl c", J.MATER.SCI.MATER.MED., vol. 24(7), JPN6015019606, July 2013 (2013-07-01), pages 1781 - 7, ISSN: 0003958255 * |
Also Published As
Publication number | Publication date |
---|---|
WO2015129881A1 (ja) | 2015-09-03 |
JP6521328B2 (ja) | 2019-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6521328B2 (ja) | 細胞の立体構造体の製造方法 | |
Compaan et al. | Gellan fluid gel as a versatile support bath material for fluid extrusion bioprinting | |
Li et al. | 3D bioprinting of highly thixotropic alginate/methylcellulose hydrogel with strong interface bonding | |
Wilson et al. | Shear-thinning and thermo-reversible nanoengineered inks for 3D bioprinting | |
Zhao et al. | Composite hydrogels in three-dimensional in vitro models | |
Compaan et al. | Cross-linkable microgel composite matrix bath for embedded bioprinting of perfusable tissue constructs and sculpting of solid objects | |
Ren et al. | Developments and opportunities for 3D bioprinted organoids | |
Donderwinkel et al. | Bio-inks for 3D bioprinting: recent advances and future prospects | |
Zehnder et al. | Evaluation of an alginate–gelatine crosslinked hydrogel for bioplotting | |
Pati et al. | 3D printing of cell-laden constructs for heterogeneous tissue regeneration | |
Bencherif et al. | Advances in the design of macroporous polymer scaffolds for potential applications in dentistry | |
Wang et al. | Microfluidic generation of porous microcarriers for three-dimensional cell culture | |
Mendes et al. | Human platelet lysate-based nanocomposite bioink for bioprinting hierarchical fibrillar structures | |
Chen et al. | Novel living cell sheet harvest system composed of thermoreversible methylcellulose hydrogels | |
Li et al. | Porcine skeletal muscle tissue fabrication for cultured meat production using three-dimensional bioprinting technology | |
Lin et al. | Marine‐Derived Hydrogels for Biomedical Applications | |
Ma et al. | Recent advances in macroporous hydrogels for cell behavior and tissue engineering | |
Maji et al. | Engineering hydrogels for the development of three-dimensional in vitro models | |
KR20180049712A (ko) | 탈세포화 세포외 기질을 사용한 습식 3차원 세포 프린팅 | |
Brunel et al. | Engineered assistive materials for 3D bioprinting: support baths and sacrificial inks | |
JP2013532966A5 (ja) | ||
KR20110025327A (ko) | 골세포 및 연골세포 공동 배양용 이중 스캐폴드 | |
Park et al. | Fabrication of hydrogel scaffolds using rapid prototyping for soft tissue engineering | |
Joao et al. | An overview of inverted colloidal crystal systems for tissue engineering | |
Liu et al. | Application status of sacrificial biomaterials in 3D bioprinting |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20180220 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20190122 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190320 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20190402 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20190417 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6521328 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |