WO2012147878A1 - 細胞培養器 - Google Patents
細胞培養器 Download PDFInfo
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- WO2012147878A1 WO2012147878A1 PCT/JP2012/061271 JP2012061271W WO2012147878A1 WO 2012147878 A1 WO2012147878 A1 WO 2012147878A1 JP 2012061271 W JP2012061271 W JP 2012061271W WO 2012147878 A1 WO2012147878 A1 WO 2012147878A1
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/26—Constructional details, e.g. recesses, hinges flexible
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/02—Form or structure of the vessel
- C12M23/04—Flat or tray type, drawers
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/34—Internal compartments or partitions
Definitions
- the present invention relates to a cell culture vessel capable of culturing cells with high survival rate in a gel.
- a gel such as collagen is used as a scaffold material (scaffold)
- a cell suspension gel is prepared by mixing cells and gel, and the cell suspension gel is immersed in a liquid medium. Done. At that time, the cell suspension gel may be put into the plastic petri dish, and a cell culture may be performed by pouring a liquid medium from above.
- the cell suspension gel is stretched and placed inside.
- a cell suspension gel is placed in a three-dimensional incubator (see Patent Document 1) for the purpose of applying mechanical stimulation to cells, and a liquid medium is poured thereon, and if necessary, the three-dimensional incubator is installed. There is a method in which cell culture is performed while stretching.
- the three-dimensional incubator is required to uniformly apply stress to cells in a gel serving as a cell scaffold. Therefore, there has been proposed a cell culture device that is formed in a rectangular box shape with a deformable material, includes a bottom membrane and a side wall standing from the entire periphery of the bottom membrane, and an inner surface of the side wall is formed to be porous.
- Patent Document 1 In the above-described prior art cell culture device, a plastic petri dish or an existing three-dimensional culture device (Patent Document 1), only the upper surface of the gel containing cells is in contact with a liquid medium that supplies nutrients to the cells. There is a problem that the cell viability of the cultured cells is low because nutrients are supplied only from one side of the gel exposed to the medium, and nutrients are not sufficiently supplied to cells in the center, lower part, etc. of the gel. .
- the present invention was made in view of the above-mentioned problems in conventional cell culture vessels, and compared to the prior art, sufficiently supplies nutrients to cells in the center, lower part, etc. of the gel, It is an object of the present invention to provide a cell culture device that can maintain a high cell viability of cultured cells.
- the present invention An incubator for carrying out cell culture, comprising: a container that can contain a liquid medium; and a cell suspension holding member that is supported by the inner surface of the container and holds the cell suspension, When the incubator is filled with a liquid medium, the cell suspension held by the cell suspension holding member exposes the outer surface facing the liquid medium.
- the cell viability of the cultured cells can be maintained high compared to the prior art, and the cells in the gel can be easily and efficiently extended to give mechanical stimulation. it can.
- the culture vessel and the cell suspension holding member can be modified.
- the outer surfaces of the opposite positions of the cell suspension are the upper surface and the bottom surface of the cell suspension.
- the outer surface of the opposite position of the cell suspension is a side surface of the cell suspension.
- the outer surface of the opposite position of the cell suspension is the upper surface, bottom surface and side surface of the cell suspension.
- the cell suspension is a gel.
- the cultured cells can be extended from the outside of the cell culture vessel, and mechanical stimulation can be easily and more efficiently given to the cultured cells.
- FIG. 2 is a cross-sectional view taken along line II-II in FIG. It is a perspective view of the cell culture device of a 2nd embodiment of the present invention.
- FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. It is a top view of the cell culture device of a 3rd embodiment of the present invention. It is a perspective view of the cell culture device of 4th Embodiment of this invention.
- FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 6.
- FIG. 7 is a cross-sectional view taken along line VIII-VIII in FIG.
- the cell culture device of the first embodiment includes a culture vessel 2, a gel holding member 4 that holds a gel that is a cell suspension, and a gel 6 that is a cell suspension.
- the culture vessel 2 is made of a material such as silicon elastomer or PDMS (Polydimethylsiloxane).
- an incubator STB-CH-04 manufactured by Strex Co., Ltd. can be used as the culture vessel 2.
- the stress device (not shown) is for applying stress to the culture vessel 2 to deform the culture vessel 2 and a gel holding member 4 described later.
- the gel holding member 4 was prepared by cutting a foamed silicon sheet (SSP-2.0S, SSP-4.0S) manufactured by AS ONE Corporation.
- the gel holding member 4 has a width of about 1.5 mm, a height of about 2.0 mm, and a length equal to the length of the liquid medium space 10 and 20 mm.
- a gel holding hole 20 penetrating vertically with a width of about 1.0 mm is provided in the central portion extending in the length direction of the gel holding member 4.
- the gel holding member 4 is adhered to the inner side wall of the culture vessel 2 that forms the liquid medium space 10.
- silicon resin TSE3032 (A) and TSE3032 (B) manufactured by Momentive Performance Material Japan G.K. is used, and the TSE3032 (A) and TSE3032 (B) are mixed at a ratio of 10: 1.
- the mixed solution is applied to the bonded portion and heated at 60 ° C. for 1 hour.
- Gel 6 suspends cells three-dimensionally therein, and is a self-assembled peptide gel, collagen gel, or the like.
- the gel 6 is disposed in the gel holding hole 20 of the gel holding member 4.
- the cell culture device of the second embodiment will be described with reference to FIGS. 3 and 4, and the same reference numerals as in the first embodiment are attached to FIGS. 3 and 4 for the same configuration as in the first embodiment. Therefore, the description is omitted.
- the gel holding member 24 is formed with a gel holding round hole 26 penetrating vertically in the center.
- a support pole member 30 having an upper end surface 27 coinciding with the upper surface of the gel holding member 24 and a lower end surface 28 reaching the bottom surface of the liquid medium space 10 is disposed.
- the cell culture device of the third embodiment will be described with reference to FIG. 5, but the same components as those of the first embodiment will be denoted by the same reference numerals as those of the first embodiment in FIG. To do.
- the gel holding member 44 is supported so that there is a gap between the gel holding member 44 and the bottom of the liquid culture medium space 10 as in the first embodiment.
- the gel holding member 44 is wider than the gel holding member 14 of the first embodiment, and has triangular notches 46 on both sides.
- a W-shaped gel holding gap 48 is formed at the center of the gel holding member 44.
- the gel holding member 104 silicon resin (TSE3032 (A) and TSE3032 (B)) manufactured by Momentive Performance Material Japan GK was used. A silicon resin obtained by mixing TSE3032 (A) and TSE3032 (B) at a ratio of 10: 1 and placing the mixture in a mold and heating at 60 ° C. for 2 hours was used.
- the gel holding member 104 has a width of about 3.0 mm, a height of about 2.0 mm, and a length that is 20 mm, which is equal to the length of the liquid medium space 10. In the central portion extending in the length direction of the gel holding member 104, a vertically holding gel holding hole 120 having a width of about 1.0 mm is provided.
- the gel holding member 104 is further provided with a plurality of 1.0 mm horizontal through holes 130 extending in the horizontal direction and penetrating the gel holding member 104 and intersecting the gel holding holes 120.
- the horizontal through hole 130 acts to partially expose the cells suspended on the side surface of the gel 6 inserted into the gel holding hole 120 to the liquid medium.
- the gel holding member 104 is adhered to the inner side wall of the culture vessel 2 that forms the liquid medium space 10.
- silicon resin TSE3032 (A) and TSE3032 (B) manufactured by Momentive Performance Material Japan G.K. is used, and the TSE3032 (A) and TSE3032 (B) are mixed at a ratio of 10: 1.
- the mixed solution is applied to the bonded portion and heated at 60 ° C. for 1 hour.
- the first cell culture device is the cell culture device of the first embodiment according to the present invention.
- the gel holding member 4 ′ and the gel 6 ′ are brought into contact with the bottom surface of the liquid medium space 10 ′, and the cells suspended in the gel 6 ′ are transferred from the liquid medium. It is estimated that sufficient nutrition is not provided.
- mouse myoblasts (C2C12) were mixed with self-assembling peptide gel (Menicon, PanaceaGel SPG178, final concentration 0.27%) at 2 ⁇ 10 6 cells / mL.
- 60 uL of the mixed gel was added to the gap between the foamed silicon sheets using a pipette. Thereafter, about 3 mL of liquid medium (DMEM + 10% FCS) was added, the mixed gel was immersed in the liquid medium, placed in a 37 ° C. incubator (CO2 concentration 5%), and cultured for 3 days.
- DMEM + 10% FCS liquid medium
- FIG. 10 is a cross-sectional image of a gel by the first cell culture device of the first embodiment according to the present invention.
- FIG. 11 is a cross-sectional image of a gel obtained by a second cell incubator according to the prior art. In these stained images, the white part indicates a living cell, and the dotted line indicates the boundary of the gel bottom. In these stained images, it can be seen that the cell viability by the first cell culture device of the first embodiment according to the present invention is much higher than the cell viability by the second cell culture device of the prior art.
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Abstract
Description
一方、細胞の三次元培養では足場となる材料(スキャホールド)としてコラーゲン等のゲルを使用し、細胞とゲルを混ぜ合わせた細胞懸濁ゲルを調製し、該細胞懸濁ゲルを液体培地に浸して行われる。その際、該細胞懸濁ゲルを前記プラスチック製シャーレに入れて、その上から液体培地を注いで細胞培養を行うこともあれば、別の方法では、細胞懸濁ゲルを伸展し、内部にある細胞へ機械刺激を加えることを目的とした、三次元培養器(特許文献1参照)に細胞懸濁ゲルを入れ、その上から液体培地を注ぎ、さらに必要に応じて、該三次元培養器を伸展させながら細胞培養を行う方法がある。
本発明は、従来の細胞培養器における上述した問題に鑑みなされたものであって、従来技術に比較して、ゲルの中心部、下方部等にある細胞にも栄養を十分に供給して、培養された細胞の細胞生存率を高く維持できる細胞培養器を提供することを目的とする。
液体培地を入れることができる容器と、該容器の内面により支持され、細胞懸濁体を保持するための細胞懸濁体保持部材とを有する、細胞培養を行うための培養器であって、
該培養器を液体培地で満たした際に、前記細胞懸濁体保持部材に保持された細胞懸濁体が、液体培地に対し対向する外面を露出することを特徴とする培養器である。
前記課題を解決するための手段において、前記培養容器及び前記細胞懸濁体保持部材が、変型可能であることを特徴とする。
第1実施形態の細胞培養器は、図1及び図2に示すように、培養容器2、細胞懸濁体であるゲルを保持するゲル保持部材4、及び細胞懸濁体であるゲル6を有する。
培養容器2は、シリコンエラストマー、PDMS(Polydimethylsiloxane)等の材料で作成される。培養容器2は、ストレックス株式会社製造の培養器STB-CH-04を使用することも可能である。ストレックス株式会社製造の培養器STB-CH-04は、縦25mm、横40mm、高さ12mmの略直方体であり、中央部に液体培地空間10を形成する縦20mm、横20mm、深さ10mmの凹部が形成されている。培養容器2の四隅には、培養容器2を応力装置(図示せず)にねじ固定するためのねじ止め孔12が形成されている。前記応力装置(図示せず)は、培養容器2に応力を与えて、培養容器2及び後述するゲル保持部材4を変形させるためのものである。
第2実施形態の細胞培養器は、図3及び図4を使用して説明するが、第1実施形態と同一の構成については、図3及び図4に第1実施形態と同一の符号を付してその説明を省略する。
ゲル保持部材24は、中心に上下貫通したゲル保持丸孔26が形成されている。ゲル保持丸孔26の中には、上端面27がゲル保持部材24の上面と一致し、下端面28が液体培地空間10の底面に到達した支持ポール部材30が配置される。ゲル保持丸孔26と支持ポール部材30の間には間隙32があり、間隙32にゲル6が配置される。
第3実施形態の細胞培養器は、図5を使用して説明するが、第1実施形態と同一の構成については、図5に第1実施形態と同一の符号を付してその説明を省略する。
ゲル保持部材44は、第1実施形態のゲル保持部材14と同じく液体培地空間10の底部との間に間隔があるように支持されている。ゲル保持部材44は、第1実施形態のゲル保持部材14より幅広であり、両側に三角形の切り込み46がある。ゲル保持部材44の中央部には、W形ゲル保持隙間48が形成されている。
第4実施形態の細胞培養器は、図6ないし図8を使用して説明するが、第1実施形態と同一の構成については、図6ないし図8に第1実施形態と同一の符号を付してその説明を省略する。
本発明の細胞培養器によって、ゲルの中心部及び下方部にある細胞にも栄養を十分に供給されて培養された細胞の細胞生存率を高いこと確認するために、以下の比較試験を行った。
第1細胞培養器は、本発明に係る前記第1実施形態の細胞培養器である。第2細胞培養器は、図9に示すように、ゲル保持部材4’及びゲル6’が、液体培地空間10’の底面に接触して、ゲル6’に懸濁された細胞に液体培地から十分な栄養が供給されないことが推定される。
4 ゲル保持部材
6 ゲル
10 液体培地空間
12 ねじ止め孔
20 ゲル保持孔
24 ゲル保持部材
26 ゲル保持丸孔
27 上端面
28 下端面
30 支持ポール部材
32 間隙
44 ゲル保持部材
48 W形ゲル保持隙間
104 ゲル保持部材
120 ゲル保持孔
130 水平貫通孔
Claims (6)
- 液体培地を入れることができる容器と、該容器の内面により支持され、細胞懸濁体を保持するための細胞懸濁体保持部材を有する、細胞培養を行うための細胞培養器であって、
該培養器を液体培地で満たした際に、前記細胞懸濁体保持部材に保持された細胞懸濁体が、その対向する外面を液体培地に対し露出することを特徴とする培養器。 - 前記培養容器及び前記細胞懸濁体保持部材が、変型可能であることを特徴とする請求項1に記載の細胞培養器。
- 前記細胞懸濁体の対向する位置の外面が、前記細胞懸濁体の上面と底面であることを特徴とする請求項1に記載の細胞培養器。
- 前記細胞懸濁体の対向する位置の外面が、前記細胞懸濁体の側面であることを特徴とする請求項1に記載の細胞培養器。
- 前記細胞懸濁体の対向する位置の外面が、前記細胞懸濁体の上面、底面及び側面であることを特徴とする請求項1に記載の細胞培養器。
- 前記細胞懸濁体が、ゲルであることを特徴とする請求項1に記載の細胞培養器。
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US14/114,134 US20140113365A1 (en) | 2011-04-27 | 2012-04-26 | Cell culturing vessel |
JP2013512445A JP6074860B2 (ja) | 2011-04-27 | 2012-04-26 | 細胞培養器 |
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CN108291188A (zh) * | 2015-12-04 | 2018-07-17 | 公立大学法人大阪府立大学 | 细胞培养容器及观察用样品室 |
WO2018150689A1 (ja) | 2017-02-15 | 2018-08-23 | 公立大学法人大阪府立大学 | 細胞培養容器、観察用試料セル及び細胞培養方法 |
JP2019122341A (ja) * | 2018-01-18 | 2019-07-25 | 国立大学法人名古屋大学 | 容器及びその使用 |
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JP7130200B2 (ja) * | 2017-10-25 | 2022-09-05 | 日本光電工業株式会社 | 心筋細胞を含むシート状組織の張力測定デバイス、システム及びキット |
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- 2012-04-26 US US14/114,134 patent/US20140113365A1/en not_active Abandoned
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CN108291188A (zh) * | 2015-12-04 | 2018-07-17 | 公立大学法人大阪府立大学 | 细胞培养容器及观察用样品室 |
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US11795424B2 (en) | 2017-02-15 | 2023-10-24 | University Public Corporation Osaka | Cell culture vessel, sample observation cell, and cell culture method |
JP2019122341A (ja) * | 2018-01-18 | 2019-07-25 | 国立大学法人名古屋大学 | 容器及びその使用 |
JP7129668B2 (ja) | 2018-01-18 | 2022-09-02 | 国立大学法人東海国立大学機構 | 容器及びその使用 |
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JPWO2012147878A1 (ja) | 2014-07-28 |
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