WO2015125742A1 - 細胞培養容器 - Google Patents
細胞培養容器 Download PDFInfo
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- WO2015125742A1 WO2015125742A1 PCT/JP2015/054172 JP2015054172W WO2015125742A1 WO 2015125742 A1 WO2015125742 A1 WO 2015125742A1 JP 2015054172 W JP2015054172 W JP 2015054172W WO 2015125742 A1 WO2015125742 A1 WO 2015125742A1
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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
- C12M23/12—Well or multiwell plates
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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
- C12M23/20—Material Coatings
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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
- C12M23/24—Gas permeable parts
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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
- C12M25/00—Means for supporting, enclosing or fixing the microorganisms, e.g. immunocoatings
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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
- C12M25/00—Means for supporting, enclosing or fixing the microorganisms, e.g. immunocoatings
- C12M25/06—Plates; Walls; Drawers; Multilayer plates
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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
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/10—Perfusion
Definitions
- the present invention relates to a cell culture container.
- iPS cells induced pluripotent stem cells
- ES cells embryonic stem cells
- open culture containers such as dishes and flasks
- Liquid such as cell suspension or culture medium is introduced into the container by pipetting performed, or liquid or cells are collected from the container.
- iPS cells induced pluripotent stem cells
- ES cells embryonic stem cells
- there is a risk of contamination from the outside such as bacteria and viruses because the space in the container communicates with the outside air when the lid is opened.
- a closed-type culture vessel is known to compensate for the drawbacks of such an open-type culture vessel (see, for example, US Pat. No. 6,479,252 and JP-A 2010-11747).
- an access port for accessing the space inside the container from the outside is provided in the closed culture container.
- a syringe is inserted into each access port at the time of injecting or discharging the liquid, thereby allowing contamination from the outside world. National risk is reduced.
- An object of the present invention is to provide a closed cell culture container for culturing a plurality of cell masses at the same time, which can uniformize the size of the cell mass to be cultured and control the cell culture position. There is.
- the present invention includes a container main body and a flat plate attached to one surface of the container main body, the container main body including an inflow port through which liquid flows and a passage through which the liquid flowing in from the inflow port passes.
- a plurality of cell seeding regions in which cells passing through the passage are seeded are arranged along the passage on the bottom surface of the passage.
- a cell culture container characterized by being provided.
- the cell seeding regions are provided at equal intervals along the passage.
- the passage has a meandering portion.
- the passage has a portion branched into a plurality of passage components and a portion where the plurality of passage components merge.
- a recess is provided concentrically with the cell seeding region on the bottom surface of the passage.
- the depression has a pyramid shape or a cone shape.
- the recess may have a flat bottom.
- an extracellular matrix is preferably applied to a portion of the flat plate facing the depression.
- an extracellular matrix (ECM) is applied to the inside of the recess, and an extracellular matrix (ECM) is not applied to the outside of the recess. Also good.
- the bottom surface of the passage is flat, and an extracellular matrix (ECM) is applied to the inside of the cell seeding region, and an extracellular matrix (ECM) is applied to the outside of the cell seeding region. It does not have to be.
- the outer surface roughness of the cell seeding region is greater than the inner surface roughness of the cell seeding region.
- the bottom surface of the passage and the flat plate are light transmissive.
- the flat plate has gas permeability.
- FIG. 1A is a schematic plan view showing a cell culture container according to the first embodiment of the present invention.
- FIG. 1B is a cross-sectional view taken along line AA of the cell culture container shown in FIG. 1A.
- FIG. 1C is a cross-sectional view taken along line BB of the cell culture container shown in FIG. 1A.
- FIG. 2A is a schematic diagram for explaining an example of a method for using the cell culture container according to the first embodiment of the present invention.
- FIG. 2B is a schematic diagram for explaining an example of a method for using the cell culture container according to the first embodiment of the present invention.
- FIG. 2C is a schematic diagram for explaining an example of a method for using the cell culture container according to the first embodiment of the present invention.
- FIG. 1A is a schematic plan view showing a cell culture container according to the first embodiment of the present invention.
- FIG. 1B is a cross-sectional view taken along line AA of the cell culture container shown in FIG. 1A.
- FIG. 2D is a schematic diagram for explaining an example of a method for using the cell culture container according to the first embodiment of the present invention.
- FIG. 2E is a schematic diagram for explaining an example of a method for using the cell culture container according to the first embodiment of the present invention.
- FIG. 3A is a schematic plan view showing a cell culture container according to the second embodiment of the present invention.
- FIG. 3B is a cross-sectional view taken along the line CC of the cell culture container shown in FIG. 3A.
- FIG. 3C is a cross-sectional view taken along line DD of the cell culture container shown in FIG. 3A.
- FIG. 4 is an enlarged schematic view showing a portion surrounded by a one-dot chain line to which the symbol E of the cell culture container shown in FIG.
- FIG. 5A is a schematic diagram for explaining an example of a method for using the cell culture container according to the second embodiment of the present invention.
- FIG. 5B is a schematic diagram for explaining an example of a method for using the cell culture container according to the second embodiment of the present invention.
- FIG. 5C is a schematic diagram for explaining an example of a method for using the cell culture container according to the second embodiment of the present invention.
- FIG. 5D is a schematic diagram for explaining an example of a method for using the cell culture container according to the second embodiment of the present invention.
- FIG. 5E is a schematic diagram for explaining an example of a method for using the cell culture container according to the second embodiment of the present invention.
- FIG. 5A is a schematic diagram for explaining an example of a method for using the cell culture container according to the second embodiment of the present invention.
- FIG. 5B is a schematic diagram for explaining an example of a method for using the cell culture container according to the second embodiment of the present invention.
- FIG. 5C is a schematic diagram
- FIG. 6A is a schematic diagram for explaining another example of the method of using the cell culture container according to the second embodiment of the present invention.
- FIG. 6B is a schematic diagram for explaining another example of the method of using the cell culture container according to the second embodiment of the present invention.
- FIG. 6C is a schematic diagram for explaining another example of the method of using the cell culture container according to the second embodiment of the present invention.
- FIG. 7A is a schematic plan view showing a cell culture container according to the third embodiment of the present invention.
- FIG. 7B is a cross-sectional view taken along line FF of the cell culture container shown in FIG. 7A.
- FIG. 7C is a cross-sectional view taken along line GG of the cell culture container shown in FIG. 7A.
- FIG. 7A is a schematic plan view showing a cell culture container according to the third embodiment of the present invention.
- FIG. 7B is a cross-sectional view taken along line FF of the cell culture container shown in FIG. 7A.
- FIG. 8A is a schematic diagram for explaining an example of a method of using the cell culture container according to the third embodiment of the present invention.
- FIG. 8B is a schematic diagram for explaining an example of a method for using the cell culture container according to the third embodiment of the present invention.
- FIG. 8C is a schematic diagram for explaining an example of a method for using the cell culture container according to the third embodiment of the present invention.
- FIG. 9 is a schematic plan view showing a cell culture container according to the fourth embodiment of the present invention.
- FIG. 1A is a schematic plan view showing a cell culture container according to the first embodiment of the present invention.
- FIG. 1B is a cross-sectional view taken along line AA of the cell culture container shown in FIG. 1A.
- FIG. 1C is a cross-sectional view taken along line BB of the cell culture container shown in FIG. 1A.
- the cell culture container 10a of the present embodiment contains various adhesive (adhesive) cells such as pluripotent stem cells such as iPS cells and ES cells, chondrocytes such as bone marrow stromal cells (MSC), and dendritic cells. It can be used for culturing purposes. In the present embodiment, the following description will be given mainly assuming the use of culturing iPS cells, but this is only an example.
- the cell culture container 10a includes a container body 31a and a flat plate 32 attached to one surface of the container body 31a.
- a resin having optical transparency is used, for example, polystyrene. Since the container main body 31a and the flat plate 32 have optical transparency, it is easy to optically observe the cells in culture from the outside.
- the container body 31a has a substantially rectangular shape in plan view. Specifically, the dimensions of the container body 31a are, for example, 130 mm in length, 85 mm in width, and 10 mm in height.
- the container body 31a includes an inlet 11 into which liquids (liquid in which cells are dispersed, culture solution, release agent, phosphate buffered saline (PBS), etc.) are introduced, and the inlet 11 A passage 12 through which the liquid flowing in from the passage passes, and an outlet 13 through which the liquid passing through the passage 12 flows out.
- the inflow port 11, the passage 12, and the outflow port 13 are integrally formed by, for example, injection molding.
- the passage 12 of the container body 31a is formed in a groove shape on the one surface side to which the flat plate 32 of the container body 31a is attached.
- the diameter of the passage 12 (that is, the depth and width of the groove) is preferably 2 mm or more.
- path 12 is 4 mm or less.
- the passage 12 of the container body 31a has a meandering portion in a plan view, that is, a portion in which straight portions and folded portions are alternately connected. Thereby, the full length of the channel
- a plurality of cell seeding regions 20 a in which cells passing through the passage 12 are seeded are arranged along the passage 12 on the bottom surface of the passage 12.
- the pitch (center interval) of the cell seeding region 20a is 2 mm to 3 mm depending on the growth limit size within the range where the colony edges do not overlap. It is preferable to set in the range. Thereby, a wide sowing area can be secured without bonding adjacent colony ends.
- what is necessary is just to have a minimum boundary between the two adjacent cell seeding regions 20a, and the interval between the edges of the two adjacent cell seeding regions 20a is, for example, 2 mm or less.
- the outer surface roughness of the cell seeding region 20a is preferably larger than the inner surface roughness of the cell seeding region 20a.
- the inner surface roughness of the cell seeding region 20a is Ra 0.2 or less
- the outer surface roughness of the cell seeding region 20a is Ra 0.8 or less.
- “Ra” indicates arithmetic mean roughness, and is in accordance with JIS B0601. Such a difference in surface roughness can be realized, for example, by adjusting the surface roughness of a mold used at the time of injection molding of the container body 31a. The larger the surface roughness on the outside of the cell seeding region 20a, the more difficult the cells adhere to the outside of the cell seeding region 20a.
- a recess 21 is formed in the bottom surface of the passage 12 concentrically with the cell seeding region 20a.
- the recess 21 has a quadrangular pyramid shape, but is not limited thereto, and may have an n pyramid shape (n is a natural number of 3 or 5 or more) or a conical shape.
- the apex angle of the recess 21 is preferably 90 ° or less.
- the apex angle of the depression 21 is larger than 90 °, the cells are unlikely to slide down the slope of the depression 21.
- the vertex angle of the hollow 21 is 30 ° or more.
- the apex angle of the depression 21 is smaller than 30 °, the cells are unlikely to fall from the inside of the depression 21 when the container is inverted as described later.
- the apex angle of the recess 21 is more preferably 30 ° to 90 °.
- the inflow port 11 and the outflow port 13 of the container main body 31a are provided on the same side surface of the container main body 31a.
- the inflow port 11 communicates with one end of the passage 12, and the outflow port 13 communicates with the other end of the passage 12.
- the inlet 11 and outlet 13 are used for medical purposes such as a rubber stopper with a slit into which the tip of a syringe can be inserted, an elastic membrane that can be inserted with an injection needle, or a luer lock.
- a structure having an open / close valve Thereby, the risk of contamination from the outside world can be reduced at the time of liquid injection and recovery.
- the flat plate 32 of the present embodiment is thinly formed so as to have appropriate gas permeability.
- the thickness of the flat plate 32 is, for example, 50 ⁇ m to 200 ⁇ m. This makes it easy to supply a gas such as oxygen gas to the cells being cultured.
- the flat plate 32 is preferably gas-impermeable, and in this case, the thickness of the flat plate 32 is, for example, 2000 ⁇ m to 3000 ⁇ m.
- the flat plate 32 is disposed on one surface of the container main body 31a where the passage 12 is formed so as to cover the entire ceiling of the passage 12, and the outer portion of the passage 12 (that is, the tip of the wall portion defining the passage 12). It is affixed to and fixedly supported on the part).
- the flat plate 32 is bonded to the outer portion of the passage 12 with an adhesive, but the fixing method is not limited to the adhesive, and may be, for example, thermal fusion or ultrasonic fusion. Since the flat plate 32 is fixedly supported by the outer portion of the passage 12, the curvature of the flat plate 32 can be suppressed.
- the surface of the passage 12 is formed in front of the container body 31a of the flat plate 32 is attached is O 2 plasma treatment.
- O 2 gas having a flow rate of 40 mL / min is converted into plasma by 27 kW of power, and the surface on which the passage 12 of the container body 31a is formed is exposed to the O 2 plasma for 5 minutes.
- a cell non-adhesive coating solution is applied to the passage 12 of the container body 31a. Specifically, for example, 10 mL of the cell non-adhesive coating solution is flowed into the passage 12 and left at 37 ° C. for 2 hours. Thereafter, the cell non-adhesive coating solution is discharged from the passage 12, and the passage 12 is washed with sterilized water.
- a flat plate 32 is attached to one surface of the container main body 31a where the passage 12 is formed. Specifically, for example, after an adhesive (not shown) is applied to an outer portion of the passage 12, the flat plate 32 is placed on one surface of the container body 31a so as to cover the entire ceiling of the passage 12. And bonded by an adhesive. The adhesive is then solidified for 16 hours with a 40 ° C. dryer.
- an extracellular matrix (hereinafter referred to as ECM) 41 is applied to the portion of the flat plate 32 that faces the recess 21.
- ECM extracellular matrix
- 25 mL of ECM for example, Vitronectin XF manufactured by Stem cell technologies
- PBS in the passage 12 is swept away by the ECM and flows out from the outlet 13. In this state, it is left still for 1 hour.
- the ECM 41 is attached to a portion of the passage 12 where the cell non-adhesive coating liquid is not applied, that is, the entire region of the flat plate 32 corresponding to the ceiling surface of the passage 12.
- a 25 mL cell suspension in which cells 40 are dispersed (for example, iPS cells are dispersed) in a state where a 1 mL air plug is inserted into the inflow port 11.
- the cell suspension is introduced from the inlet 11 into the passage 12 at a flow rate of 10 mL / min to 20 mL / min, for example.
- the cells 40 in the cell suspension may be dispersed in the form of single cells or in the form of cell clumps (clamps).
- the ECM that has not adhered to the flat plate 32 is pushed away by the cell suspension and flows out from the outlet 13.
- the movement direction of each liquid molecule constituting the liquid in the passage 12 is parallel to the passage 12. That is, the occurrence of turbulent flow between the inlet 11 and the outlet 13 is suppressed. Thereby, the occurrence of unevenness in the cell density in the cell suspension is suppressed, and the cells 40 are controlled to fall (precipitate) at a practically uniform density on the bottom surface of the passage 12.
- the surface roughness of the outside of the cell seeding region 20a is relatively large, it is possible to prevent the cells from attaching to the outside of the cell seeding region 20a.
- vibration for example, frequency 180 Hz
- the cells 40 that have fallen outside the depression 21 in the bottom surface of the passage 12 are guided to the inside of the depression 21, that is, the cells 40 are effectively aggregated inside the cell seeding region 20a.
- the depression 21 of the present embodiment has a pyramid shape or a cone shape
- the cells 40 that have fallen inside the depression 21 slide down along the slope of the pyramid shape or the cone shape depression 21.
- the cells 40 can be aggregated with a high density around the top of the depression 21. Specifically, for example, about 100 to 1000 cells 40 are aggregated inside each depression 21.
- the cell culture vessel 10a is turned upside down as shown in FIG. 2E.
- the cells 40 aggregated inside the recess 21 fall on a portion of the flat plate 32 facing the recess 21.
- the ECM 41 is applied to the portion of the flat plate 32 that faces the depression 21, the cells 40 that have fallen on the flat plate 32 can be cultured on the spot using the ECM 41 as a scaffold.
- the cultured cells 40 are optically observed from the outside.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- the old medium in the passage 12 is swept away by the new medium and flows out from the outlet 13.
- the new culture medium and the old culture medium are not easily mixed, and the old culture medium is pushed out by the new culture medium so that the new culture medium does not continue to flow. Even old media can be replaced easily and effectively.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- the cells 40 are cultured until 3000 to 20000 cells per colony.
- a release agent for example, TryLE Select manufactured by Life technologies
- a release agent for example, TryLE Select manufactured by Life technologies
- the old culture medium in the passage 12 is washed away by the release agent and flows out from the outlet 13.
- the colonies of the cells 40 cultured on the flat plate 32 are detached from the ECM 41 with a release agent.
- a medium for example, ReproFF2 manufactured by Reprocell
- a medium for example, ReproFF2 manufactured by Reprocell
- the colonies of the cultured cells 40 detached from the ECM 41 are washed away with a new medium and flowed out (collected) from the outlet 13.
- a flow along the passage 12 is formed in the passage 12, shear stress is uniformly applied to the bottom surface of the passage 12. Thereby, the missing of the cultured cells 40 is reduced.
- the cells 40 in the liquid passing through the passage 12 are seeded inside the plurality of cell seeding regions 20a provided side by side along the passage 12, culture is performed.
- the size of the cell mass can be made uniform, and the culture position can be controlled at a predetermined position corresponding to each cell seeding region 20a.
- the traveling direction of each liquid molecule constituting the liquid in the passage 12 is the passage 12. That is, the generation of turbulent flow between the inlet 11 and the outlet 13 is suppressed. This suppresses unevenness in the cell density in the liquid at the time of cell seeding, and the size of the cell mass to be seeded becomes uniform.
- the new medium and the old medium are not easily mixed, and the old medium is pushed out by the new medium, so that the old medium can be easily put out without having to keep flowing the new medium, and the medium can be effectively replaced. (In other words, there is no loss during liquid exchange).
- the shear stress is uniformly applied to the bottom surface of the passage 12 at the time of cell recovery, dropping of the cultured cells 40 is reduced.
- the culture position of the cells 40 can be controlled along the passage 12 so as to be equally spaced. it can. Thereby, the cell density during culture becomes uniform along the passage 12, and quality control of the cultured cells 40 becomes easy.
- the passage 12 since the passage 12 has a meandering portion, the entire length of the passage 12 can be extended without increasing the size of the container body 31a. As a result, the number of culture positions can be increased without increasing the width of the flow path 12, and as a result, a larger number of cell masses can be simultaneously cultured in one container 10a.
- the hollow 21 is provided concentrically with the cell seeding
- the container 10a when the container 10a is vibrated, it falls to the outer side of the hollow 21
- the cells 40 thus induced are induced inside the depression 21, that is, the cells 40 can be effectively seeded inside the cell seeding region 20 a.
- the outer surface roughness of the cell seeding region 20a is larger than the inner surface roughness of the cell seeding region 20a, it is suppressed that cells adhere to the outer side of the cell seeding region 20a. The Thereby, the cells in the liquid can be seeded more efficiently inside the cell seeding region 20a.
- the depression 21 has a pyramid shape or a cone shape
- the cells 40 slide down along the slope of the pyramid or cone shape depression 21. Thereby, the cells 40 can be densely aggregated around the top of the recess 21.
- the ECM 41 is applied to the portion of the flat plate 32 that faces the recess 21.
- the cells 40 aggregated inside the respective depressions 21 are dropped onto the portion where the ECM 41 is applied. Thereby, culture
- FIG. 3A is a schematic plan view showing a cell culture vessel 10b according to the second embodiment of the present invention.
- FIG. 3B is a cross-sectional view taken along the line CC of the cell culture container shown in FIG. 3A.
- FIG. 3C is a cross-sectional view taken along line DD of the cell culture container shown in FIG. 3A.
- a recess 22 is provided concentrically on the bottom surface of the passage 12 so as to be concentric with the cell seeding region 20b. Has a flat bottom.
- the recess 22 has a circular shape in plan view, but is not limited thereto, and may be, for example, a plan view elliptical shape or a plan view polygonal shape.
- the depth of the recess 22 is, for example, 0.1 mm to 1.0 mm.
- the thickness of the bottom of the recess 22 is preferably 0.05 mm to 0.3 mm. As a result of actual verification using the silicone rubber film having a hardness of A30 by the present inventor, when the bottom of the recess 22 is thinner than 0.05 mm, it is easily broken due to insufficient strength, and liquid leakage may occur.
- FIG. 4 is an enlarged schematic view showing a portion surrounded by an alternate long and short dash line with the symbol E of the cell culture vessel 10b shown in FIG. 3C.
- the outer surface roughness of the cell seeding region 20b is larger than the inner surface roughness of the cell seeding region 20b (depression 22).
- the inner surface roughness of the cell seeding region 20b is Ra 0.2 or less
- the outer surface roughness of the cell seeding region 20b is Ra 0.8 or less.
- Such a difference in surface roughness is realized, for example, by adjusting the surface roughness of a mold used at the time of injection molding of the container body 31b. The larger the surface roughness of the outer side of the cell seeding region 20b (depression 22), the more difficult the cells adhere to the outer side of the cell seeding region 20b (depression 22).
- FIGS. 1A to 1C Other configurations are substantially the same as those of the first embodiment shown in FIGS. 1A to 1C. 3A to 3C and FIG. 4, the same parts as those in the first embodiment shown in FIGS. 1A to 1C are denoted by the same reference numerals, and detailed description thereof is omitted.
- the surface of the passage 12 is formed in front of the container body 31b which flat 32 is attached is O 2 plasma treatment.
- O 2 gas at a flow rate of 40 mL / min is converted into plasma by 27 kW of power, and the surface on which the passage 12 of the container body 31b is formed is exposed to the O 2 plasma for 5 minutes.
- a cell non-adhesive coating solution is applied to the passage 12 of the container body 31b. Specifically, for example, 10 mL of the cell non-adhesive coating solution is flowed into the passage 12 and left at 37 ° C. for 2 hours. Thereafter, the cell non-adhesive coating solution is discharged from the passage 12, and the passage 12 is washed with sterilized water.
- a flat plate 32 is attached to one surface of the container body 31b where the passage 12 is formed. Specifically, for example, after an adhesive (not shown) is applied to the outer portion of the passage 12, the flat plate 32 is placed on one surface of the container body 31b so as to cover the entire ceiling of the passage 12. And bonded by an adhesive. The adhesive is then solidified for 16 hours with a 40 ° C. dryer.
- the ECM 41 is applied to the portion of the flat plate 32 that faces the recess 22. Specifically, for example, in a state where a 1 mL air plug is inserted into the inlet 11, 25 mL of ECM (for example, Vitronectin XF manufactured by Stem cell technologies) flows into the passage 12 from the inlet 11. PBS in the passage 12 is swept away by the ECM and flows out from the outlet 13. In this state, it is left still for 1 hour. As a result, the ECM 41 is attached to a portion of the passage 12 where the cell non-adhesive coating liquid is not applied, that is, the entire region of the flat plate 32 corresponding to the ceiling surface of the passage 12.
- ECM for example, Vitronectin XF manufactured by Stem cell technologies
- a 25 mL cell suspension in which cells 40 are dispersed (for example, iPS cells are dispersed) with a 1 mL air plug inserted into the inflow port 11.
- the cell suspension is introduced from the inlet 11 into the passage 12 at a flow rate of 10 mL / min to 20 mL / min, for example.
- the cells 40 in the cell suspension may be dispersed in the form of single cells or in the form of cell clumps (clamps).
- the ECM that has not adhered to the flat plate 32 is pushed away by the cell suspension and flows out from the outlet 13.
- the traveling direction of each liquid molecule constituting the liquid in the passage 12 is parallel to the passage 12. That is, the occurrence of turbulent flow between the inlet 11 and the outlet 13 is suppressed. Thereby, the occurrence of unevenness in the cell density in the cell suspension is suppressed, and the cells 40 are controlled so as to drop to the bottom surface of the passage 12 at a practically uniform density.
- the surface roughness of the outer side of the cell seeding region 20b is relatively large, it is possible to prevent the cells from attaching to the outer side of the cell seeding region 20b.
- vibration for example, frequency 180 Hz
- vibration for example, frequency 180 Hz
- the cells 40 that have fallen outside the depression 22 in the bottom surface of the passage 12 are guided to the inside of the depression 22, that is, the cells 40 are effectively seeded inside the cell seeding region 20b.
- about 500 to 5000 cells 40 are seeded inside each depression 22.
- one side of the cell culture container 10b (for example, the right side in FIG. 3A) is the other.
- the entire cell culture container 10b may be inclined so as to be lower than the side (left side in FIG. 3A).
- the cells 40 that have fallen on the bottom surface of the passage 12 can be slid down toward the one side along the inclination, and can be aggregated at a high density on the edge on the one side (right side) of the inside of the recess 22.
- the cell culture container 10b is turned upside down.
- the cells 40 aggregated inside the recess 22 fall on a portion of the flat plate 32 facing the recess 22.
- the ECM 41 is applied to the portion of the flat plate 32 that faces the recess 22, the cells 40 that have fallen on the flat plate 32 can be cultured on the spot using the ECM 41 as a scaffold.
- the cultured cells 40 are optically observed from the outside.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- the old medium in the passage 12 is swept away by the new medium and flows out from the outlet 13.
- the new culture medium and the old culture medium are not easily mixed, and the old culture medium is pushed out by the new culture medium so that the new culture medium does not continue to flow. Even old media can be replaced easily and effectively.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- the cells 40 are cultured until 3000 to 20000 cells per colony.
- a release agent for example, TryLE Select manufactured by Life technologies
- a release agent for example, TryLE Select manufactured by Life technologies
- the old culture medium in the passage 12 is washed away by the release agent and flows out from the outlet 13.
- the colonies of the cells 40 cultured on the flat plate 32 are detached from the ECM 41 with a release agent.
- a medium for example, ReproFF2 manufactured by Reprocell
- a medium for example, ReproFF2 manufactured by Reprocell
- the colonies of the cultured cells 40 detached from the ECM 41 are washed away with a new medium and flowed out (collected) from the outlet 13.
- a flow along the passage 12 is formed in the passage 12, shear stress is uniformly applied to the bottom surface of the passage 12. Thereby, the missing of the cultured cells 40 is reduced.
- the ECM 41 is applied to the inside of the recess 22 in the container body 31 b before the flat plate 32 is attached, but the ECM 41 is not applied to the outside of the recess 22.
- Vitronectin XF manufactured by Stem cell technologies as ECM is dropped only inside the recess 22 of the container main body 31a using a droplet dropping device or the like. Thereafter, the dropped ECM 41 is dried. Thereby, the consumption of the ECM 41 is significantly reduced (for example, the consumption is 1 mL or less).
- a flat plate 32 is attached to one surface of the container body 31b where the passage 12 is formed. Specifically, for example, after an adhesive (not shown) is applied to the outer portion of the passage 12, the flat plate 32 is placed on one surface of the container body 31b so as to cover the entire ceiling of the passage 12. And bonded by an adhesive. The adhesive is then solidified for 16 hours with a 40 ° C. dryer.
- a 25 mL cell suspension in which cells 40 are dispersed (for example, iPS cells are dispersed) with a 1 mL air plug inserted into the inflow port 11.
- the cell suspension is introduced from the inlet 11 into the passage 12 at a flow rate of 10 mL / min to 20 mL / min, for example.
- the cells 40 in the cell suspension may be dispersed in the form of single cells or in the form of cell clumps (clamps).
- the PBS in the passage 12 is swept away by the cell suspension and flows out from the outlet 13.
- the traveling direction of each liquid molecule constituting the liquid in the passage 12 is parallel to the passage 12. That is, the occurrence of turbulent flow between the inlet 11 and the outlet 13 is suppressed. Thereby, the occurrence of unevenness in the cell density in the cell suspension is suppressed, and the cells 40 are controlled so as to drop to the bottom surface of the passage 12 at a practically uniform density.
- the surface roughness of the outer side of the cell seeding region 20b is relatively large, it is possible to prevent the cells from attaching to the outer side of the cell seeding region 20b.
- vibration for example, frequency 180 Hz
- vibration for example, frequency 180 Hz
- the cells 40 that have fallen to the outside of the recess 21 in the bottom surface of the passage 12 are guided to the inside of the recess 21, that is, the cells 40 are effectively seeded inside the cell seeding region 20 b.
- about 500 to 1000 cells 40 are seeded inside each depression 22.
- one side of the cell culture container 10b (for example, the right side in FIG. 3A) is the other.
- the entire cell culture container 10b may be inclined so as to be lower than the side (left side in FIG. 3A).
- the cells 40 that have fallen on the bottom surface of the passage 12 can be slid down toward the one side along the inclination, and can be aggregated at a high density on the edge on the one side (right side) of the inside of the recess 22.
- the cells 40 seeded inside the depression 22 can be cultured on the spot using the ECM 41 as a scaffold.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- the old medium in the passage 12 is swept away by the new medium and flows out from the outlet 13.
- the new culture medium and the old culture medium are not easily mixed, and the old culture medium is pushed out by the new culture medium so that the new culture medium does not continue to flow.
- the old medium can be easily removed and the medium can be effectively replaced.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- Cells 40 are cultured until there are 10,000 to 20,000 cells per colony.
- a release agent for example, TryLE Select manufactured by Life technologies
- a release agent for example, TryLE Select manufactured by Life technologies
- the old culture medium in the passage 12 is washed away by the release agent and flows out from the outlet 13.
- the colonies of the cells 40 cultured in each depression 22 are detached from the ECM 41 by the release agent.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- the ECM 41 is applied to the inside of the recess 22, but the ECM 41 is not applied to the outside of the recess 22.
- the culture can be performed on the spot without turning the container upside down.
- the ECM 41 is not applied to the outside of the depression 22, the consumption amount of ECM is remarkably reduced, and the culture position of the cells 40 can be effectively controlled inside the depression 22.
- FIG. 7A is a schematic plan view showing a cell culture container 10c according to the third embodiment of the present invention.
- FIG. 7B is a cross-sectional view taken along line FF of the cell culture container shown in FIG. 7A.
- FIG. 7C is a cross-sectional view taken along line GG of the cell culture container shown in FIG. 7A.
- the bottom surface of the passage 12 is flat and is located inside the cell seeding region 20c provided side by side along the passage 12.
- the ECM 41 is applied, and the ECM 41 is not applied outside the cell seeding region 20c.
- the application method of the ECM 41 will be described.
- Vitronectin XF manufactured by Stem cells technologies as ECM is dropped only inside the cell seeding region 20c on the bottom surface of the passage 12 using a droplet dropping device or the like. Thereafter, the dropped ECM 41 is dried. Thereby, the consumption amount of ECM is remarkably reduced, and the culture position of the cells can be effectively controlled inside the cell seeding region 20c.
- the outer surface roughness of the cell seeding region 20c is larger than the inner surface roughness of the cell seeding region 20c.
- the inner surface roughness of the cell seeding region 20c is Ra 0.2 or less
- the outer surface roughness of the cell seeding region 20c is Ra 0.8 or less.
- Such a difference in surface roughness can be realized, for example, by adjusting the surface roughness of a mold used at the time of injection molding of the container body 31c. The larger the surface roughness of the outside of the cell seeding region 20c, the more difficult the cells adhere to the outside of the cell seeding region 20c.
- the ECM 41 is preliminarily applied to the cell seeding region 20c provided side by side along the passage 12 in the container body 31c before the flat plate 32 is pasted, and the cell seeding region 20c.
- the ECM 41 is not applied to the outside of the substrate.
- a flat plate 32 is attached to one surface of the container body 31c where the passage 12 is formed. Specifically, for example, after an adhesive (not shown) is applied to the outer portion of the passage 12, the flat plate 32 is placed on one surface of the container body 31c so as to cover the entire ceiling of the passage 12. And bonded by an adhesive. The adhesive is then solidified for 16 hours with a 40 ° C. dryer.
- a 25 mL cell suspension in which cells 40 are dispersed (for example, iPS cells are dispersed) with a 1 mL air plug inserted into the inflow port 11.
- the cell suspension is introduced from the inlet 11 into the passage 12 at a flow rate of 10 mL / min to 20 mL / min, for example.
- the cells 40 in the cell suspension may be dispersed in the form of single cells or in the form of cell clumps (clamps).
- the PBS in the passage 12 is swept away by the cell suspension and flows out from the outlet 13.
- the traveling direction of each liquid molecule constituting the liquid in the passage 12 is parallel to the passage 12. That is, the occurrence of turbulent flow between the inlet 11 and the outlet 13 is suppressed. Thereby, the occurrence of unevenness in the cell density in the cell suspension is suppressed, and the cells 40 are controlled so as to drop to the bottom surface of the passage 12 at a practically uniform density.
- the ECM 41 is applied to the inside of the cell seeding region 20c, but the ECM 41 is not applied to the outside of the cell seeding region 20c, so that cells adhere to the outside of the cell seeding region 20c. Is suppressed. Thereby, the cells 40 are effectively seeded inside the cell seeding region 20c. Specifically, for example, about 500 to 5000 cells 40 are seeded inside each cell seeding region 20c.
- the cells 40 aggregated inside the cell seeding region 20c can be cultured on the spot using the ECM41 as a scaffold.
- the cultured cells 40 are optically observed from the outside.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- the old medium in the passage 12 is swept away by the new medium and flows out from the outlet 13.
- the new culture medium and the old culture medium are not easily mixed, and the old culture medium is pushed out by the new culture medium so that the new culture medium does not continue to flow.
- the old medium can be easily removed and the medium can be effectively replaced.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- the cells 40 are cultured until 10,000 to 20000 cells per colony.
- a release agent for example, TryLE Select manufactured by Life technologies
- a release agent for example, TryLE Select manufactured by Life technologies
- the old culture medium in the passage 12 is washed away by the release agent and flows out from the outlet 13.
- the colonies of the cells 40 cultured on the bottom surface of the passage 12 are detached from the ECM 41 by the release agent.
- a medium for example, ReproFF2 manufactured by Reprocell
- ReproFF2 manufactured by Reprocell
- the ECM 41 is not applied to the outside of the cell seeding region 20c, the consumption amount of ECM is remarkably reduced, and the culture position of the cells 40 is the cell seeding. It can be effectively controlled inside the region 20c.
- the bottom surface of the passage 12 is flat, so that the visibility of the cells 40 being cultured is good.
- FIG. 9 is a schematic plan view showing a cell culture vessel 10d according to the fourth embodiment of the present invention.
- the passage 12 ′ has a portion 129a branched into a plurality (eight in the illustrated example) of passage components 121 to 128, and And a portion 129b where a plurality of passage components 121 to 128 merge.
- the branching portion 129a and the joining portion 129b each have a tree shape as illustrated, that is, 2 n pieces by repeating two branches n times. It is preferable to have a shape that branches equally to the passage components.
- the cell seeding region 20d of the present embodiment is provided on the bottom surface of each passage component 121-128 along the passage component 121-128.
- FIGS. 1A to 1C Other configurations are substantially the same as those of the first embodiment shown in FIGS. 1A to 1C.
- FIG. 9 the same parts as those of the first embodiment shown in FIGS. 1A to 1C are denoted by the same reference numerals, and detailed description thereof is omitted.
- the method of using the cell culture container 10d according to the fourth embodiment is substantially the same as the method of using the cell culture container 10a according to the first embodiment, and detailed description thereof is omitted.
- the entire length of the passage 12 ' can be extended without increasing the size of the container body 31d.
- the number of culture positions can be increased without increasing the width of the flow path 12 ′.
- a larger number of cell masses can be cultured in one container at the same time.
- a recess 21a is formed concentrically with the cell seeding region 20d on the bottom surface of the passage 12 ′, and the recess 21a has a pyramid shape or a cone shape. (In the illustrated example, it has a quadrangular pyramid shape), but is not limited thereto.
- a recess is formed concentrically with the cell seeding region 20d on the bottom surface of the passage 12 ′, and the recess may have a flat bottom.
- the bottom surface of the passage 12 ' is flat and ECM is applied to the inside of the cell seeding region 20d, but ECM is applied to the outside of the cell seeding region 20d. It does not have to be.
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Abstract
Description
図1Aは、本発明の第1実施の形態による細胞培養容器を示す概略平面図である。図1Bは、図1Aに示す細胞培養容器のA-A線に沿った断面図である。図1Cは、図1Aに示す細胞培養容器のB-B線に沿った断面図である。
次に、図3A~図3Cを参照して、本発明の第2の実施の形態について説明する。
図3Aは、本発明の第2の実施の形態による細胞培養容器10bを示す概略平面図である。図3Bは、図3Aに示す細胞培養容器のC-C線に沿った断面図である。図3Cは、図3Aに示す細胞培養容器のD-D線に沿った断面図である。
次に、図7A~図7Cを参照して、本発明の第3の実施の形態について説明する。
図7Aは、本発明の第3の実施の形態による細胞培養容器10cを示す概略平面図である。図7Bは、図7Aに示す細胞培養容器のF-F線に沿った断面図である。図7Cは、図7Aに示す細胞培養容器のG-G線に沿った断面図である。
次に、図9を参照して、本発明の第4の実施の形態について説明する。
図9は、本発明の第4の実施の形態による細胞培養容器10dを示す概略平面図である。
10b 細胞培養容器
10c 細胞培養容器
10d 細胞培養容器
11 流入口
12 通路
12’ 通路
121 通路構成要素
122 通路構成要素
123 通路構成要素
124 通路構成要素
125 通路構成要素
126 通路構成要素
127 通路構成要素
128 通路構成要素
129a 分岐する部分
129b 合流する部分
13 流出口
20a 細胞播種領域
20b 細胞播種領域
20c 細胞播種領域
20d 細胞播種領域
21 窪み
22 窪み
31a 容器本体
31b 容器本体
31c 容器本体
31d 容器本体
32 平板
40 細胞
41 細胞外マトリックス(ECM)
Claims (13)
- 容器本体と、
前記容器本体の一面に貼り付けられた平板と、
を備え、
前記容器本体は、
液体が流入される流入口と、
前記流入口から流入した液体が通過する通路と、
前記通路を通過した液体が流出される流出口と、
を有し、
前記通路の底面には、当該通路を通過する細胞が播種される複数の細胞播種領域が、当該通路に沿って並んで設けられている
ことを特徴とする細胞培養容器。 - 前記細胞播種領域は、前記通路に沿って等間隔で設けられている
ことを特徴とする請求項1に記載の細胞培養容器。 - 前記通路は、蛇行する部分を有する
ことを特徴とする請求項1または2に記載の細胞培養容器。 - 前記通路は、複数の通路構成要素に分岐する部分と、当該複数の通路構成要素が合流する部分と、を有する
ことを特徴とする請求項1乃至3のいずれかに記載の細胞培養容器。 - 前記通路の底面には、前記細胞播種領域と同心状に窪みが凹設されている
ことを特徴とする請求項1乃至4のいずれかに記載の細胞培養容器。 - 前記窪みは、角錐状または円錐状を有する
ことを特徴とする請求項5に記載の細胞培養容器。 - 前記窪みは、平坦な底部を有する
ことを特徴とする請求項5に記載の細胞培養容器。 - 前記平板のうち前記窪みと向かい合う部分には、細胞外マトリックス(ECM)が塗布されている
ことを特徴とする請求項5乃至7のいずれかに記載の細胞培養容器。 - 前記窪みの内側には、細胞外マトリックス(ECM)が塗布されており、
前記窪みの外側には、細胞外マトリックス(ECM)が塗布されていない
ことを特徴とする請求項7に記載の細胞培養容器。 - 前記通路の底面は、平坦であり、
前記細胞播種領域の内側には、細胞外マトリックス(ECM)が塗布されており、
前記細胞播種領域の外側には、細胞外マトリックス(ECM)が塗布されていない
ことを特徴とする請求項1乃至4のいずれかに記載の細胞培養容器。 - 前記細胞播種領域の外側の表面粗さは、前記細胞播種領域の内側の表面粗さより大きいことを特徴とする請求項1乃至10のいずれかに記載の細胞培養容器。
- 前記通路の底面及び前記平板は、光透過性を有する
ことを特徴とする請求項1乃至11のいずれかに記載の細胞培養容器。 - 前記平板は、ガス透過性を有する
ことを特徴とする請求項1乃至12のいずれかに記載の細胞培養容器。
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JP2016504090A JP6199479B2 (ja) | 2014-02-20 | 2015-02-16 | 細胞培養容器 |
EP15752598.1A EP3109312B1 (en) | 2014-02-20 | 2015-02-16 | Cell culture container |
US15/240,284 US10351811B2 (en) | 2014-02-20 | 2016-08-18 | Cell culture container |
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US15/240,284 Continuation US10351811B2 (en) | 2014-02-20 | 2016-08-18 | Cell culture container |
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US (1) | US10351811B2 (ja) |
EP (1) | EP3109312B1 (ja) |
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WO2017111054A1 (ja) * | 2015-12-25 | 2017-06-29 | 東京エレクトロン株式会社 | 培養容器 |
WO2018070447A1 (ja) * | 2016-10-13 | 2018-04-19 | 東京エレクトロン株式会社 | 培養容器連結装置、培養システムおよびニードルの洗浄方法 |
JPWO2018070447A1 (ja) * | 2016-10-13 | 2019-07-25 | シンフォニアテクノロジー株式会社 | 培養容器連結装置、培養システムおよびニードルの洗浄方法 |
US11377631B2 (en) | 2016-10-13 | 2022-07-05 | Sinfonia Technology Co., Ltd. | Culture container linkage device, culture system, and method for washing needle |
WO2019035462A1 (ja) * | 2017-08-17 | 2019-02-21 | 東京エレクトロン株式会社 | 細胞培養容器において培養される多能性幹細胞の未分化状態を位置特異的に判定する方法、多能性幹細胞の継代培養方法およびそれら方法に使用される装置 |
WO2023153058A1 (ja) | 2022-02-14 | 2023-08-17 | 富士フイルム株式会社 | 細胞の評価方法及び評価用デバイス |
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EP3109312A4 (en) | 2017-10-04 |
US20160355773A1 (en) | 2016-12-08 |
JPWO2015125742A1 (ja) | 2017-03-30 |
US10351811B2 (en) | 2019-07-16 |
EP3109312A1 (en) | 2016-12-28 |
EP3109312B1 (en) | 2019-08-28 |
JP6199479B2 (ja) | 2017-09-20 |
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