WO2017006942A1 - 細胞保持容器及びそれを用いた細胞培養方法 - Google Patents
細胞保持容器及びそれを用いた細胞培養方法 Download PDFInfo
- Publication number
- WO2017006942A1 WO2017006942A1 PCT/JP2016/069940 JP2016069940W WO2017006942A1 WO 2017006942 A1 WO2017006942 A1 WO 2017006942A1 JP 2016069940 W JP2016069940 W JP 2016069940W WO 2017006942 A1 WO2017006942 A1 WO 2017006942A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell
- cells
- elastic body
- holding container
- cell holding
- Prior art date
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- C12M23/22—Transparent or translucent parts
-
- 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
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
- C12M41/36—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of biomass, e.g. colony counters or by turbidity measurements
Definitions
- the present invention relates to cell retention in which inducible pluripotent stem cells (iPS cells) and embryonic stem cells (ES cells) are aggregated on an elastic body formed of a rubber material to form a cell clump or culture.
- iPS cells inducible pluripotent stem cells
- ES cells embryonic stem cells
- the present invention relates to a container and a cell culture method using the same.
- an adherent cell is a new culture containing a fresh medium by peeling off a cell that has grown by adhering to a culture vessel by a physical method using a cell scraper or pipetting or a physiological method using an enzyme. It is cultivated by seeding in a container and subcultured.
- pluripotent stem cells which are adherent cells, are prone to cell death when made into single cells, so it is necessary to pass them in the form of cell clusters.
- pluripotent stem cells are detached as colonies and pipetting.
- the cells are crushed to a suitable size and then seeded in a new culture vessel and subcultured.
- Patent Document 1 discloses a maintenance amplification culture of pluripotent stem cells containing nanofibers made of biopolymers as a means of improving damage to cells by these peeling means and colony heterogeneity in subculture. And a culture method using the same are disclosed.
- this base material By using this base material, it is possible to disperse to single cells with little pipetting operation without performing enzyme treatment at the time of passage, and to obtain uniform cells while suppressing the rate of cell death Is possible.
- this pluripotent stem cell is easily differentiated and it is difficult to return to an undifferentiated state once differentiation is started, it is necessary to carry out maintenance culture without changing the cell to a state in which it is easily differentiated.
- the cells that have started differentiation are removed from the culture vessel in order to adversely affect surrounding cells and reduce the yield and purity of undifferentiated cells. There is a need.
- open-type culture and closed-type culture are used, and in normal open-type culture using a dish, work is performed by opening the lid of the dish during medium exchange or subculture.
- a micropipette can be inserted into the dish and the cells that have started differentiation can be removed by suction.
- Open culture is inexpensive and excellent in operability, and is useful for research.
- closed culture since an aspirator cannot be inserted, it is difficult to selectively remove cells that have started differentiation during the culture.
- closed culture is useful for medical use because it can reduce the incidence of contamination and the risk of infection compared to open culture, and selectively removes cells that have started differentiation by simple operations. A technology and structure that can be used are desired.
- Patent Document 2 discloses a method of selectively detaching cells from an adhesive surface by high-frequency vibration as a method that enables selective cell removal and recovery even in closed culture. According to this method, cells can be selectively detached from the adhesive surface of a closed or open culture vessel by non-contact means.
- the present invention has been made to solve the above-mentioned problems, and can form and culture cell clumps on an elastic body formed of a rubber material capable of holding cells without causing damage. While maintaining the undifferentiated state of the cells, efficient and uniform subculture is possible, selective cell removal and recovery are possible, high processability, excellent visibility, and observation of the cell state from the outside
- Another object of the present invention is to provide a cell holding container that can be used for inspection and a cell culture method using the same.
- the cell holding container includes at least an adherent cell selected from stem cells, progenitor cells, somatic cells and germ cells, and a floating cell selected from blood cells, T cells and B cells.
- the stem cells held in the cell holding container are inducible pluripotent stem cells or embryonic stem cells.
- the cell holding container may be for cell culture.
- the cell holding container preferably contains a filler containing dry silica powder and / or wet silica powder in the addition-crosslinking silicone rubber.
- the cell holding container preferably contains 5 to 40 parts by mass of filler containing dry silica powder and / or wet silica powder in the addition-crosslinking silicone rubber with respect to 100 parts by mass of all rubber components.
- the elastic body of the cell holding container is transparent.
- the elastic body has a thickness of 0.1 mm at the maximum, a hardness at the Shore A hardness of A40 / S at the maximum, and a tensile strength of 3.5 MPa at the maximum.
- a part of the elastic body may be sandwiched between a support and a side wall, and may be fixed by combining them.
- the cell holding container may be reversibly deformed into a concavo-convex shape having a dent and / or a undulation from the flat plate shape by the elastic body receiving an external force.
- the elastic body may be composed of a deformable soft part and a non-deformable hard part.
- the soft part has a maximum thickness of 0.1 mm.
- the cell holding container is preferably opened on the cell contact surface side of the elastic body.
- the rubber component may include at least one selected from ethylene propylene diene rubber, fluorine rubber, addition-crosslinking silicone rubber, and fluorine elastomer.
- the cell culture method is a cell culture method using the cell holding container, and is an adherent cell selected from stem cells, progenitor cells, somatic cells and germ cells, and hematopoietic cells.
- the elastic body of the cell holding container is recessed from the flat plate shape.
- the method includes a step of deforming into a concavo-convex shape having a dent, and a step of transforming the concavo-convex shape into the flat plate shape after seeding the cells in the dent to form a cell clump.
- the cell holding container of the present invention holds cells such as inducible pluripotent stem cells and embryonic stem cells on an elastic body formed of a rubber material containing at least an addition-crosslinking silicone rubber as a rubber component, and seeded
- the aggregated cells can be aggregated to form a cell clump or cultured, and they can be observed or examined. Regardless of whether the elastic body of the cell holding container is in a flat plate shape or a concavo-convex shape, the cell holding container does not deteriorate the visibility. Therefore, even if it is an open cell holding container, a closed cell holding container Even so, the cells held on the elastic body can be observed using a microscope.
- this cell holding container can form a cell aggregate of a uniform size on an elastic body molded or deformed into an uneven shape, and efficiently subcultures without damaging the cells. be able to.
- the thickness of the elastic body can be set to 0.1 mm or less that enables reversible deformation into an arbitrary shape, and excellent workability is exhibited even at such a thin thickness. be able to. Thereby, it is excellent in stretchability, can be reversibly deformed, can be deformed into an arbitrary shape, and can be restored to its original shape without distortion.
- the elastic body can be reversibly deformed at an arbitrary timing, so that visibility can be improved as needed, and cells can be held without mixing bubbles in the cell holding container. Or it can be cultured.
- uniform subculture can be performed efficiently while maintaining the undifferentiated state of the cells without damaging the cells. Further, according to this cell culture method, it is possible to cultivate while stabilizing the fixing position of the cell without mixing bubbles in the well of the cell holding container, and moreover, selectively elastic body of the cell holding container Therefore, it is excellent in visibility, and the cell state can be observed and inspected before and after the culture and during the culture from the outside.
- FIG. 2 is a schematic perspective view of a cell holding container to which the present invention is applied and a schematic cross-sectional view taken along the line AA. It is a model perspective view which shows before and after a deformation
- FIG. 4 is a schematic plan view of another deformable elastic body of a cell holding container to which the present invention is applied and a schematic cross-sectional view taken along the line AA.
- FIG. 4 is a schematic plan view of another deformable elastic body of a cell holding container to which the present invention is applied and a schematic cross-sectional view taken along the line AA.
- FIG. 4 is a schematic plan view of another deformable elastic body of a cell holding container to which the present invention is applied and a schematic cross-sectional view taken along the line AA.
- FIG. 4 is a schematic plan view of another deformable elastic body of a cell holding container to which the present invention is applied and a schematic cross-sectional view taken along the line AA. It is a model perspective view of another cell holding container to which this invention is applied. It is a schematic plan view of another cell holding container to which the present invention is applied.
- FIG. 8 is a schematic cross-sectional view taken along arrow AA in FIG. 7. It is a schematic cross section which shows the process of deform
- One form of the cell holding container of the present invention is an open cell holding container having an elastic body formed of a rubber material, which is an inducible pluripotent stem cell (iPS cell) or embryonic stem cell (ES cell).
- iPS cell inducible pluripotent stem cell
- ES cell embryonic stem cell
- the open cell holding container will be described with reference to FIG.
- the cell holding container 1 of the present invention has an elastic body 20 made of a rubber material, a side wall 2 surrounding the periphery, and a support 7 for fixing the elastic body 20. As shown in FIGS. 1A and 1B, the elastic body 20 of the cell holding container 1 is partially sandwiched between the support 7 and the side wall 2, and the side wall 2 is inserted into the groove 8 of the support 7. It is physically fixed by combining.
- a sheet-like elastic body 20 is stacked on a frame-like support body 7 having a groove 8, and a part of the side wall 2 is fitted into the groove 8 of the support body 7 from above.
- the elastic body 20 can be fixed.
- the elastic body 20 has an appropriate tension without being distorted or bent due to its elasticity and stretchability, and the cell contact surface 21 that holds cells and the cell non-contact surface 22 that is outside on the opposite side are flat. Shape.
- the cell holding container 1 can hold cells by adhering them on the elastic body 20, and can perform culture, observation, and inspection.
- the cell holding container 1 may hold cells in a uniform or non-uniform dot shape on a part of the cell contact surface 21 surrounded by the side wall 2 with the elastic body 20 as a bottom, and is surrounded by the side wall 2.
- the whole cell contact surface 21 may be immersed to hold the cells.
- the inside surrounded by the side wall 2 becomes the culture chamber 4.
- Such a cell culture container 1 is in a state in which the cell contact surface 21, that is, the culture chamber 4 is opened, and it is easy to selectively remove and collect cells without requiring a complicated process, and is easy to work with. It is expensive. Furthermore, according to this cell culture container 1, it can work efficiently, maintaining a cell state, without damaging a cell.
- the elastic body 20 forming the cell holding container 1 is made of a rubber material containing at least an addition-crosslinking silicone rubber as a rubber component.
- the rubber component may be an addition-crosslinking type silicone rubber or a condensation type silicone rubber, and is composed of at least one of those silicone rubbers, ethylene propylene diene rubber (EPDM), fluorine rubber, and fluorine elastomer. It may contain at least one selected. These fluororubbers and fluoroelastomers can be kneaded in a rubber material in a non-melting manner.
- the elastic body 20 is preferably made of only an addition-crosslinking type silicone rubber as a rubber component from the viewpoint of processability.
- addition-crosslinking silicone rubber examples include LSR7005, LSR7030, LSR7060, LSR7070, and LSR7080 manufactured by Momentive Performance Materials Japan GK.
- the rubber material may contain a filler.
- a filler it is preferably contained in the addition-crosslinking silicone rubber.
- the rubber component contains ethylene propylene diene rubber (EPDM), fluorine rubber, or fluorine elastomer in addition to the addition-crosslinking type silicone rubber, it is preferably contained in a rubber component other than fluorine rubber and fluorine elastomer.
- EPDM ethylene propylene diene rubber
- fluorine rubber, or fluorine elastomer in addition to the addition-crosslinking type silicone rubber
- a filler can be contained in other rubber components.
- the filler examples include dry silica powder, wet silica powder, and a mixture thereof. When only the addition-crosslinking silicone rubber is used as the rubber component, it is more preferable that dry silica powder is blended. When these fillers are cultured on the elastic body 20, cells can be stably cultured. Moreover, adhesiveness with other members like the side wall mentioned later can be improved because this rubber material contains a filler. In the case of using no filler, in the case of using dry silica up to 20 phr, or in the case of using wet silica up to 5 phr, the cell holding container is extremely excellent in culturing and visibility, but in the case of using a wet silica of 20 phr or more, Visibility is somewhat reduced.
- the filler content varies depending on the type of filler and the type of rubber component, the maximum content is 40 parts by mass with respect to 100 parts by mass of all rubber components, and preferably 5 to 40 parts by mass. When the content of the filler exceeds 40 parts by mass, the culturing property tends to be lowered.
- the content is preferably 0 to 20 parts by mass from the viewpoint of cultureability.
- wet silica powder the amount is preferably 0 to 20 parts by mass from the viewpoint of cultureability, and preferably 0 to 5 parts by mass from the viewpoint of visibility.
- EPDM in the rubber component
- the amount is preferably 0 to 30 parts by mass from the viewpoint of cultureability.
- wet silica powder is used, the amount is preferably 0 to 20 parts by mass from the viewpoint of cultureability, and preferably 0 to 5 parts by mass from the viewpoint of visibility.
- the elastic body 20 formed of such a rubber material is preferably transparent and excellent in visibility from the viewpoint of facilitating microscopic observation using a phase contrast microscope or the like, and more preferably colorless and transparent. preferable. From the viewpoint of transparency, it is preferable that the amount of filler added to the rubber material is as small as possible.
- the elastic body 20 has elasticity and deforms from a planar shape to an uneven shape as necessary when forming a cell agglomeration, culturing, observing, or inspecting by holding cells. Can be restored to the original shape, and can be reversibly deformed.
- the uneven shape is a shape having a plurality of or a single dent or protrusion on a part of the elastic body 20. For example, when an external force is applied to the elastic body 20 from the cell contact surface 21 toward the cell non-contact surface 22, the elastic body 20 is deformed into a concavo-convex shape having a recessed dent, and conversely, from the cell non-contact surface 22 to the cell contact surface.
- the surface When an external force is applied toward 21, the surface is deformed into an uneven shape having an uneven protrusion. It can be deformed to any shape as needed, and can easily be eliminated and returned to its original shape without distortion. For example, depending on the situation, cell clumps of seeded cells can be formed Therefore, it can be deformed into a concavo-convex shape, or the concavo-convex shape can be eliminated in order to improve visibility during observation and inspection of cultured cells.
- the case of the elastic body 20 including a plurality of soft portions 24 and hard portions 23 is illustrated.
- the cell contact surface 21 and the cell non-contact surface 22 of the elastic body 20 both have a planar shape.
- the hard portion 23 is not deformed, and the plurality of soft portions 24 extend outwardly to form an open quadrangular pyramid recess 25 and deform.
- the process returns to the strain without the original shape.
- the dent 25 formed in this way can hold cells, and can form, culture, and observe cell clumps.
- the recess 25 can be used as a well for forming a cell clump.
- This well is referred to as a “microwell” in order to distinguish it from a well for partitioning a multiplate culture chamber used for normal cell culture.
- a well having an opening of one side or a diameter of 1 mm or more is excluded. It is not an intended term and includes wells having openings with sides or diameters of 1 mm or more.
- the microwell may be referred to as a “dent”.
- the shape of the microwell is preferably a shape in which precipitated cells gather, and the inner periphery of the microwell has a shape that becomes concave as it approaches the bottom surface.
- the microwell has a mirror-polished surface and has a rounded tip at the top of the depression.
- the size of the microwell can be appropriately selected according to the cell aggregate desired to be prepared, and a larger one than the size of the cell aggregate desired to be prepared can be selected.
- the shape of the opening of the microwell can be appropriately selected in consideration of the ease of processing and the shape in which a large number of wells can be arranged.
- the shape of a polygon such as a triangle, a quadrangle, a hexagon, or a circle Can have a shape.
- the size of the opening of the microwell can be selected depending on the size of the cell clump to be formed. For example, an opening having an area equivalent to a circle having a diameter of 100 ⁇ m to 3 mm, a diameter of 200 ⁇ m to 800 ⁇ m, or a diameter of 400 ⁇ m to 600 ⁇ m can be provided.
- the cell clumps to be formed are preferably uniform in size, and from the viewpoint of aligning the size of the cell clumps to be formed, the plurality of microwells formed on the elastic body 20 of the cell holding container 1 are: It is preferable that the shape is uniform and the size is equal. It becomes easy to disperse the cells in the microwells relatively uniformly, and as a result, it becomes possible to form a cell clump having a uniform size.
- a large number of microwells are arranged in the elastic body 20, and there is no gap between adjacent wells so that there is no flat portion between adjacent wells. It is preferable that the gaps are arranged in parallel with regularity so as to minimize the gap. In addition, from the viewpoint of uniformly seeding the cell aggregate formed in the cell culture method on the culture surface, it is preferable that the microwells are aligned on the plane at equal intervals.
- Such a deformable elastic body 20 can be deformed into an arbitrary shape, and may be an elastic body 20a including a plurality of soft portions 24 and hard portions 23 as shown in FIG. As shown in FIG. 5, the elastic body 20 b may be partially different in thickness, or as shown in FIG. 5, the elastic body 20 c may be provided with a hard frame 26 that forms a plurality of openings 29.
- FIG. 3A is a schematic plan view of a cell non-contact surface 22 of an elastic body 20a composed of a soft portion 24 that is a deformed portion and a hard portion 23 that is a non-deformed portion.
- a cross-sectional view is shown in FIG.
- the hard portion 23 does not deform as shown in FIG. 2, and for example, a plurality of soft portions 24a 1 , 24a existing in the respective cells or lattices thereof. 2 , 24 a 3 , 24 a 4 are attracted to form a recessed dent and extend outward and deform.
- the hard portion 23 is not deformed, and the soft portions 24a 1 , 24a 2 , 24a 3 , 24a 4 are pressed to form an undulating protrusion. Deforms by extending in the direction.
- the hard portion 23 that is an undeformed portion.
- an elastic body 20a having a soft portion 24 that is a deformed portion and gradually changing the hardness thereof.
- the hardness of the film gradually decreases from the soft part 24a 1 to the soft part 24b 1, and the hardness becomes the lowest in the soft part 24b 1 , which is the part forming the bottom end of the microwell, and from there to the soft part 24a 1 Processing can be performed so that the hardness is gradually increased and the hardness of the hard portion 23 which is a non-deformed portion is the highest.
- the hard portion 23 having a plurality of grids or lattices and having a rectangular hole is not deformed, and the soft portions 24b 1 , 24b 2 , 24b 3 , 24b 4 are recessed.
- the soft portions 24a 1 , 24a 2 , 24a 3 , 24a 4 and the soft portions 24b 1 , 24b 2 , 24b 3 , 24b 4 are deformed into, for example, a quadrangular pyramid shape.
- the hard part 23 may be one in which circular holes arranged vertically and horizontally are opened and the hole is a soft part.
- the elastic body 20 having these hard part 23 and soft part 24 is one in which the hardness of the elastic body 20 is adjusted.
- the hard portion 23 may be formed of the same rubber material as that of the soft portion 24, but may be any member as long as it does not cause a change in shape due to an external force.
- Such an elastic body 20 can be formed by a known method such as an insert molding method.
- FIG. 4A is a schematic plan view of the cell non-contact surface 22 of the elastic body 20b in which the height is formed so that the deformed portion is thinner than, for example, a plurality of grid-shaped or lattice-shaped non-deformed portions, A schematic cross-sectional view taken along the line AA is shown in FIG.
- the elastic body 20b has a thin cell portion 27 formed and processed so that the cell contact surface 21 is flat and the cell non-contact surface 22 has a different thickness between the deformed portion and the non-deformed portion. .
- the thick portion 28 that is a non-deformation portion is not deformed, and a plurality of thin portions 27a 1 , 27a 2 , 27a 3 , 27a 4 are attracted and recessed. A dent is formed and deforms by extending outward.
- the thick portion 28 that is also a non-deformed portion is not deformed, and the thin portions 27a 1 , 27a 2 , 27a 3 , 27a 4 are pressed and undulated convexity It forms a ridge and deforms by extending inward.
- the thickness differs between the deformed portion and the non-deformed portion, and the deformed portion does not deform.
- the elastic body 20b which changed thickness gradually to the location may be sufficient. Processing is performed so that the thickness gradually decreases from the thick portion 28, which is an undeformed portion, to the top of the recess, and the portion forming the bottom end of the microwell becomes the thinnest, and gradually increases from there to the thick portion 28. be able to.
- FIG. 5A is a schematic plan view of the cell non-contact surface 22 of the elastic body 20c in which, for example, a substantially rectangular hard frame 26 forming a plurality of openings 29 is attached to the cell non-contact surface 22.
- a schematic cross-sectional view taken in the direction of arrow A is shown in FIG.
- the hard frame 26 corresponds to a non-deformed portion, and a region corresponding to the opening 29 of the hard frame 26 corresponds to a deformed portion.
- the region corresponding to the opening 29 can be deformed, forming a dent recessed in the cell contact surface 21 and extending outward and deforming.
- the elastic body 20 is an example of a deformable elastic body formed so as to be reversibly deformable by receiving an external force. It may be a non-deformable elastic body molded or formed to have such an arbitrary shape.
- the hardness of the deformable or non-deformable elastic body 20 is preferably A5 / S to A90 / S in Shore A hardness.
- the deformable elastic body 20 is preferably A40 / S or less, and if it exceeds A40 / S, the adhesion tends to be lowered.
- the hardness of the elastic body 20 is partially adjusted as shown in FIGS. 3B and 3C, the hardness of the deformed portion is A5 / S to A30 / S, and the hardness of the non-deformed portion is A50 / S. ⁇ A90 / S is preferable.
- the thickness of the deformable or non-deformable elastic body 20 is not particularly limited, but is preferably 0.05 mm to 2.00 mm.
- the deformable elastic body 20 is preferably 0.1 mm or less, and when it exceeds 0.1 mm, it is difficult to deform.
- the thickness of the elastic body 20 is partially adjusted as shown in FIGS. 4B and 4C, the thickness of the deformed portion is 0.05 mm to 0.30 mm, and the thickness of the non-deformed portion is 0.50 mm to 2 mm. 0.000 mm is preferable.
- the tensile strength of the deformable elastic body 20 is preferably 3.5 MPa or less, and when it exceeds 3.5 MPa, it becomes difficult to suck when applying the external force as described above.
- the cell holding container 1 may be an elastic body 20 in which at least the cell adhesion surface 21 at the bottom is made of a rubber material, and the bottom, the side wall 2 and the support 7 are the same or different, and are made of the same rubber material. It may be made of rubber or made of plastic material such as polystyrene, polypropylene, polycarbonate, and acrylic.
- the cell holding container 1 includes a plurality of cell-shaped supports having grooves and a cell-shaped side wall that can be fitted into the grooves, thereby dividing the cell contact surface 21 into a plurality of cells. Also good. Further, the cell holding container 1 may be a flat dish such as a petri dish having an elastic body 20 formed of a rubber material and serving as a bottom and a side wall 2 surrounding the periphery. The cell holding container 1 can chemically fix and fix the flat elastic body 20 and the side wall 2 via an adhesive such as an acrylic-modified silicone resin. In the elastic body 20 of the cell holding container 1, both the cell contact surface 21 and the cell non-contact surface 22 are planar as described above. The shape of the container 1 is not particularly limited, and various shapes such as a circle, an ellipse, and a polygon can be used.
- the elastic body 20 is an elastomer for adhesion culture of iPS cells or ES cells, and at least one of these cells is aggregated to form a cell clump, culture, or observe
- adherent cells and floating cells can also be used for aggregation, cell clump formation, culture, observation, and inspection.
- adherent cells include pluripotent stem cells, stem cells, progenitor cells, somatic cells, and germ cells
- floating cells include blood cells, T cells, and B cells. As floating cells, T cells and B cells are preferred.
- the cell holding container 1 of the present invention is a plate made of an elastic body 20 made of a rubber material, and has a plurality of recesses 25 in which the cell contact surface 21 on the upper side is recessed in a quadrangular pyramid.
- the cell non-contact surface 22 which is an uneven
- the cell holding container 1 is open on the cell contact surface 21 side, and holds cells in the recess 25 of the elastic body 20, and aggregates the cells seeded and seeded in the recess 25 to form a cell clump. They can be cultured and observed or inspected.
- the cell non-contact surface 22 of the elastic body 20 is not limited to a planar shape, and may have a concavo-convex shape corresponding to the cell contact surface 21.
- the cell non-contact surface 22 is preferably mirror-polished.
- the elastic body 20 may be a deformable elastic body or a non-deformable elastic body.
- FIG. 7 is a schematic plan view above the cell holding container
- FIG. 8 is a schematic cross-sectional view taken along the line AA in FIG.
- This cell holding container 1 has an injection port 5 and a discharge port 6, and a culture chamber 4 and a channel 3 are formed by the elastic body 20 and the side wall 2.
- the cell holding container 1 can be formed by adhering the side wall 2 that forms the culture chamber 4 and the flow path 3 to a flat elastic body 20 via an adhesive such as an acrylic-modified silicone resin.
- the culture chamber 4 of the cell culture container 1 has cell adhesion on part or all of the surface of the cell contact surface 21 that is the inner surface of the elastic body 20.
- the culture chamber 4 is filled with a cell-containing solution such as a cell suspension or a cell culture solution serving as a medium.
- a cell detachment solution or a cell recovery solution is also sent as necessary.
- a plurality of culture chambers 4 are connected by a flow path 3, and an inlet 5 and an outlet 6 for liquid to be fed are formed.
- the inlet 5 is an inlet for liquid to be fed
- the outlet 6 is an outlet for liquid to be fed.
- the liquid fed from the inlet 5 flows into the culture chamber 4 from any one of the flow channels 3 formed at both ends of the culture chamber 4 and then flows out from the other flow channel 3. . Thereafter, it flows into the next culture chamber 4 and flows out from the flow path 3 connected thereto, and is finally discharged from the discharge port 6 by a unidirectional flow.
- This stable unidirectional flow is preferable because the cell suspension can be uniformly seeded when the cell suspension is injected into the cell holding container 1 and the cells are seeded in the culture chamber 4.
- the unidirectional and stable flow can uniformly perfuse the cell culture solution to be sent when the seeded cells are cultured.
- the cell holding container 1 is not limited to a shape in which a plurality of culture chambers 4 are connected by a flow path 3, and each culture chamber 4 includes an inlet 5 and an outlet 6 through the flow path 3, respectively. It may be formed. Moreover, it is not restricted to what the culture chamber 4 was formed in multiple numbers, and may be only one. Furthermore, the injection port 5 and the discharge port 6 do not necessarily have to be provided separately, and may be provided integrally.
- the elastic body 20 forming the cell holding container 1 may be a deformable elastic body in which both the cell contact surface 21 and the cell non-contact surface 22 are formed in a flat plate shape having a planar shape, and is previously processed by a mold. It may be a non-deformable elastic body.
- the region forming the culture chamber 4 is deformable.
- deformable elastic bodies 20a, 20b, and 20c as shown in FIGS. 3 to 5 can be used as described above.
- it can be reversibly deformed.
- part or all of the region forming the culture chamber 4 of the elastic body 20 undulates toward the culture chamber 4.
- the non-deformable elastic body 20 is one in which the cell contact surface 21 is previously formed into an uneven shape.
- the cell non-contact surface 22 may have a planar shape, or may have a concavo-convex shape corresponding to the cell contact surface 21.
- the concavo-convex shape of the cell contact surface 21 is such that a plurality of open quadrangular pyramid depressions 25 are formed in a region of the cell contact surface 21 where the culture chamber 4 is formed.
- the slope of the recess 25 and the cell non-contact surface 22 are preferably mirror-polished.
- the dent 25 of the deformable or non-deformable elastic body 20 in such a cell holding container is the same as the microwell of the cell holding container exemplified above, and holds cells and forms and cultures cell aggregates. Can observe and inspect.
- the side wall 2 may be formed of the same or similar rubber material as the elastic body 20, or may be formed of another material.
- the side wall 2 is preferably transparent with excellent visibility from the viewpoint of microscopic observation.
- the visibility is improved from the relationship between the refractive index of the rubber material and the refractive index of the cell culture medium (medium) filling the culture chamber 4, Easy observation with a microscope.
- Most of the cell culture medium (medium) filling the culture chamber 4 is water and has a refractive index of 1.33.
- the refractive index of the addition-crosslinking silicone rubber is 1.40 to 1.43, which holds the cells.
- the state of cell culture can be directly viewed from the outside of the container 1 and can be easily observed with a microscope or the like.
- the side wall 2 is not limited to rubber made of a rubber material, and may be made of plastic made of polystyrene, polypropylene, polycarbonate, acrylic, or the like.
- the surface to which the cells are adhered has cell adhesiveness and the other surface has cell non-adhesiveness.
- the culture chamber 4 can have cell adhesiveness in all or part of the formed or molded recess 25 to be its well, and cell adhesiveness may be selectively given to the necessary portion. .
- the culture chamber 4 has cell adhesiveness on the slope of the recess 25, the cells can be fixed on the slope.
- the culture chamber 4 does not have cell adhesiveness on the slope of the recess 25, the culture chamber 4 can aggregate at the apex of the recess of the recess 25 without fixing cells on the slope.
- cell non-adhesiveness may be selectively imparted on a surface other than the surface to which the cells are adhered. By preventing cell adhesion on a surface other than the surface to which the cells are adhered, the cell clump can be efficiently separated after the cell clump is formed.
- the cell adhesion surface can be given cell adhesion by a cell adhesion coating.
- a cell adhesion coating for example, when a cell adhesive basement membrane matrix such as Matrigel (trademark) (manufactured by Nippon Becton Dickinson Co., Ltd.) is used, the cell adhesive coating can be applied to the adhesive surface.
- a well-known method can be used as a coating method using a commercially available coating agent.
- cell adhesion may be imparted by irradiating with ultraviolet rays (UV) or plasma.
- the cell non-adhesive surface can be provided with cell non-adhesiveness by a cell non-adhesive coating.
- the cell non-adhesive coating is not particularly limited as long as it is a cell non-adhesive coating.
- celluloses such as methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl cellulose sodium; polyethylene oxide Carboxyvinyl polymer; polyvinyl pyrrolidone; polyethylene glycol; polylactic acid; polyamides such as polyacrylamide and poly N-isopropylacrylamide; chitin, chitosan, hyaluronic acid, alkyd acid, starch, pectin, carrageenan, guar gum, gum arabic, dextran, etc.
- Examples include coatings with polysaccharides and their non-cell-adhesive derivatives. From the viewpoint of high transparency and good visibility, polyethylene glycol is preferred.
- the cell holding container 1 of the present invention has a covering member such as a lid, a sheet, a film, a plate, or a substrate that is detachable so as to temporarily cover the cell contact surface 21, the culture chamber 4, or the flow path 3 as necessary. It may be a thing. Further, a covering member such as a flat plate-shaped substrate is brought into contact with the cell contact surface 21 of the elastic body 20 so as to seal and seal the culture chamber 4 and the flow path 3 so as to be non-detachable and closed. It may be an adhered cell holding container.
- a side wall 2 that forms a culture chamber 4 and a flow path 3 is interposed between a flat elastic body 20 and a substrate that is a flat plate-shaped covering member disposed opposite thereto. However, it is bonded.
- the elastic body 20 and the substrate each form the culture chamber 4.
- the culture chamber 4 which has a cell adhesion surface can be formed because the surface of either the inner surface of the elastic body 20 or the inner surface of the substrate has cell adhesion.
- either one of the inner side surface of the elastic body 20 and the inner side surface of the substrate has cell adhesiveness and the other surface has cell non-adhesiveness, a cell adhesion surface and a cell non-adhesion surface can be obtained.
- Culture chambers 4 arranged to face each other can be formed. This cell adhesiveness may be applied to all or some of the inner surface of the elastic body 20 and the inner surface of the substrate. Moreover, it may be attached to all or part of the region to be the culture chamber 4.
- the covering member may be made of rubber formed of the same or similar rubber material as that of the elastic body 20, or may be made of plastic formed of polystyrene, polypropylene, polycarbonate, acrylic, or the like.
- the covering member is preferably a gas permeable membrane from the viewpoint of maintaining the oxygen concentration and carbon dioxide concentration in the culture chamber 4, and is, for example, a commercially available product using a polystyrene gas permeable membrane for cell culture. it can.
- the gas permeable membrane plays an important role in supplying oxygen or the like to the culture medium in the culture chamber 4.
- the cell holding container 1 using a gas permeable membrane as a covering member when recovering the cells cultured in the cell culture method, the cells can be effectively detached from the membrane surface by ultrasonic vibration. This is advantageous in that the method has more options.
- the volume of the culture chamber 4 varies with the deformation of the elastic body 20, and the discharge port It is necessary to discharge from 6 and adjust.
- the covering member is formed of the same rubber material, the volume variation of the culture chamber 4 due to the elastic body 20 being deformed into an uneven shape can be absorbed by the expansion and contraction of the covering member. Thereby, even if the elastic body 20 is deformed into a concavo-convex shape after sealing the inlet 5 and the outlet 6 using a rubber plug or the like, the risk of liquid leakage from the inlet 5 and the outlet 6 can be suppressed.
- the cell holding container 1 can be used as a cell holding system for aggregating cells on an elastic body 20 made of a rubber material to form a cell clump, culturing, observing or inspecting. .
- the cell holding system only needs to include the cell holding container 1 and deformation means for deforming the elastic body 20. With this cell retention system, adherent cells and floating cells can be retained on the elastic body 20, and uniform and efficient maintenance culture and subculture can be performed.
- a cell culture method using the cell holding container 1 will be described below.
- the elastic body 20 of the cell holding container 1 is deformed from a flat plate shape to an uneven shape having a recess 25. And a step of deforming the elastic body 20 so as to return the concavo-convex shape to a flat plate shape after seeding cells in a recess formed by deformation of the elastic body 20 to form a cell clump. How to do it.
- the cells 90 dispersed at the time of passage may contain cell clusters (hereinafter sometimes simply referred to as “cells”), and in adhesion culture, cells may be separated by a physiological or physical exfoliation method. Pluripotent stem cells detached from the adhesive surface can be used.
- a known method can be used, and examples thereof include a method using an enzyme and a method using a chemical substance having a cell detaching action.
- the enzyme an enzyme used in a conventional method can be used, and examples thereof include trypsin, dispase, actase, collagenase and the like.
- the chemical substance having a cell detaching action include chelating agents of divalent ions (particularly Mg 2+ ) such as ethylenediaminetetraacetic acid (EDTA). These enzymes and chemical substances having a cell detaching action may be used alone or in combination.
- a well-known method can be used, for example, a method of applying vibration such as high-frequency vibration to the cell adhesion surface or a method of using a cell scraper. Can be mentioned. These physiological exfoliation methods and physical exfoliation methods are appropriately selected and can be used alone or in combination.
- the cell mass can be dissociated to the single cell level.
- the dissociation of the cell mass may be performed simultaneously with the detachment of the cell from the culture surface, or may be performed after the cell mass is detached.
- the detached cell mass is dissociated to a single cell level by, for example, pipetting water flow. Can be dispersed.
- “Disperse to single cell level” means disperse after dissociating the cell mass so that the average number of cells contained per cell mass is 1 to 100, preferably 1 to 10 Means dissociating completely into single cells and then dispersing.
- the cell mass may be dissociated after being completely dissociated into single cells and may be dispersed after being dissociated so as to be mostly single cells, and most of them are 1 to 100, preferably May be dissociated into a cell mass composed of 1 to 10 cells and then dispersed.
- the cell mass after dispersion is large, when the cell mass is seeded in the microwell, the number of cells seeded in each microwell tends to vary, and thus the cell mass after dispersion is preferably small.
- the cell mass separated from the culture surface may be dispersed to the single cell level by further processing using an enzyme.
- an enzyme that can be used to dissociate a cell to a single cell level a well-known enzyme can be used, for example, an enzyme capable of cleaving a cell-cell bond or a cell-extracellular. Mention may be made of enzymes capable of cleaving the bond between the substrates (ECM). Dissociation of the cell mass using an enzyme or a water stream can be automated.
- a compound that suppresses adverse effects on cells such as cell death caused by dispersing cells 90 in a suspension of dispersed cells 90 such as Y A ROCK inhibitor such as -27632 can be added.
- the step of deforming the elastic body 20 is to deform the elastic body 20 outward as shown in FIG.
- the deforming means 30 can be arranged to form a cell holding system, and the elastic body 20 can be deformed by reducing the pressure.
- the step of deforming the elastic body 20 so as to return the concavo-convex shape to a flat plate shape is performed by eliminating the reduced pressure state to thereby release the elastic body 20.
- the deformation of can be released.
- the deformed elastic body 20 can return to the original flat plate shape without distortion while the cell clumps are held on the cell contact surface 21. By releasing the deformation, the visibility is greatly improved. Can be improved.
- the deforming means 30 is inhaled or air-fed by an air-feeding means connected to an uneven surface 31 that is a surface facing the cell non-contact surface 22 of the elastic body 20 of the cell holding container 1. And a single or a plurality of recesses 35.
- a part of the concavo-convex surface 31 comes into contact with the cell non-contact surface 22 of the elastic body 20 of the cell holding container 1, thereby forming a vacuum chamber composed of the respective recesses 35 with the elastic body 20.
- This vacuum chamber can change the shape of the elastic body 20 by being depressurized or pressurized by the air suction means.
- the vacuum chamber is depressurized by being sucked through the suction port 33 and is pressurized by being fed.
- the air suction means may be any means that can suck air from the vacuum chamber and can feed air to the vacuum chamber.
- the vacuum refers to a state where the pressure is reduced from atmospheric pressure.
- Example 1 A 0.05 mm thick rubber plate made of a rubber material of addition-crosslinking silicone rubber (made by Momentive Performance Materials Japan GK) as an elastic material is placed in a polystyrene culture vessel with a silicone adhesive (cemedine). A cell holding container was prepared by bonding with Cemedine Super X), and the cells were seeded on the rubber plate. Further, wet silica powder (Nippal Seal VN3, manufactured by Tosoh Silica Co., Ltd.) and dry silica powder (Nippon Aerosil Co., Ltd., Aerosil 200) were used as fillers added to the rubber material. As UV sterilization treatment, a GL15 sterilization lamp (manufactured by Toshiba Corporation) was used.
- a GL15 sterilization lamp manufactured by Toshiba Corporation
- the irradiation conditions were a distance of 1 m and an irradiation time of 24 hours.
- Table 1 shows the results of UV observation on each rubber plate, visibility with a microscope, workability with a rubber plate thickness of 0.1 mm or less, and observation of culture conditions with a microscope.
- Example 1 A cell holding container was prepared by the same method and conditions as in Example 1 except that the rubber material was changed from addition-crosslinking silicone rubber to EPDM (manufactured by JSR Corporation) and fluororubber (manufactured by Daikin Industries, Ltd.). Sowing. Table 1 below shows the results of observing with a microscope the visibility, workability, and culture state of each rubber plate as a result of UV treatment.
- Example 2 As in Example 1, cells were seeded on a rubber plate of organic peroxide type silicone rubber (Momentive Performance Materials Japan GK TSE221-5U) as an elastic body, but could not be cultured. .
- organic peroxide type silicone rubber Momentive Performance Materials Japan GK TSE221-5U
- the cell holding container of the present invention is useful as a container for cell clump formation, cell culture, observation, and inspection of various cells such as adherent cells and floating cells such as inducible pluripotent stem cells and embryonic stem cells It is.
- the cell culture system and cell culture method using this cell holding container are useful for culturing floating cells or adherent cells, and can be used for maintenance culture and subculture of these cells.
- 1 is a cell holding container
- 2 is a side wall
- 3 is a flow path
- 4 is a culture chamber
- 5 is an injection port
- 6 is a discharge port
- 7 is a support
- 8 is a groove
- 20, 20a, 20b, and 20c are elastic bodies
- 21 is a cell contact surface
- 22 is a cell non-contact surface
- 23 is a hard portion
- 24, 24a 1 , 24a 2 , 24a 3 and 24a 4 are soft portions
- 25 is a recess
- 26 is a hard frame, 27, 27a 1 and 27a.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Biomedical Technology (AREA)
- Sustainable Development (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Clinical Laboratory Science (AREA)
- Analytical Chemistry (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
ポリスチレン製の培養容器に、弾性体として付加架橋型シリコーンゴム(モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製)のゴム材料で形成された厚さ0.05mmのゴム板をシリコーン系接着剤(セメダイン株式会社製、セメダインスーパーX)で接着して細胞保持容器とし、そのゴム板上に細胞を播種した。また、ゴム材料に添加するフィラーとして、湿式シリカ粉末(東ソー・シリカ株式会社製、ニップシールVN3)及び乾式シリカ粉末(日本アエロジル株式会社製、アエロジル200)を用いた。UV滅菌処理として、GL15滅菌ランプ(株式会社東芝製)を使用した。照射条件は、距離1mとし、照射時間を24時間とした。各ゴム板におけるUV処理の結果、顕微鏡による視認性、ゴム板の厚さが0.1mm以下における加工性、及び培養状況を顕微鏡で観察した結果を下記表1に示す。
ゴム材料を付加架橋型シリコーンゴムからEPDM(JSR株式会社製)、フッ素ゴム(ダイキン工業株式会社製)に替えたこと以外は実施例1と同様の方法及び条件により細胞保持容器を作製し、細胞を播種した。各ゴム板におけるUV処理の結果、顕微鏡による視認性、加工性、及び培養状況を顕微鏡で観察した結果を下記表1に示す。
実施例1と同様に弾性体として有機過酸化物型シリコーンゴム(モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製TSE221-5U)のゴム板上に細胞を播種したが、培養することができなかった。
Claims (14)
- 幹細胞、前駆細胞、体細胞及び生殖細胞から選ばれる接着細胞と、血球系細胞、T細胞及びB細胞から選ばれる浮遊細胞との少なくとも何れかを含む細胞を保持する弾性体を有する細胞保持容器であって、
前記弾性体が、付加架橋型シリコーンゴムを含有するゴム成分を含み前記細胞を保持できるゴム材料で、形成されていることを特徴とする細胞保持容器。 - 前記幹細胞が誘導性多能性幹細胞又は胚性幹細胞であることを特徴とする請求項1に記載の細胞保持容器。
- 細胞培養用であることを特徴とする請求項1に記載の細胞保持容器。
- 前記ゴム材料中、前記付加架橋型シリコーンゴムに、乾式シリカ粉末及び/又は湿式シリカ粉末を含むフィラーが含有されていることを特徴とする請求項1に記載の細胞保持容器。
- 前記ゴム材料中、前記付加架橋型シリコーンゴムに、乾式シリカ粉末及び/又は湿式シリカ粉末を含むフィラーが、全ゴム成分100質量部に対し5~40質量部含有されていることを特徴とする請求項1に記載の細胞保持容器。
- 前記弾性体が透明であることを特徴とする請求項1に記載の細胞保持容器。
- 前記弾性体が、厚さを最大で0.1mm、硬さをショアA硬度で最大A40/S、引張強さを最大で3.5MPaとすることを特徴とする請求項1に記載の細胞保持容器。
- 前記弾性体の一部が、支持体と側壁とに挟まれ、それらを篏合して固定されていることを特徴とする請求項1の細胞保持容器。
- 前記弾性体が、外力を受けることによって、平板形状から窪んだ凹み及び/又は起伏した凸みを有する凹凸形状へ可逆的に変形することを特徴とする請求項1に記載の細胞保持容器。
- 前記弾性体が、変形可能な軟質部と、非変形性の硬質部とからなることを特徴とする請求項1に記載の細胞保持容器。
- 前記軟質部が、厚みを最大で0.1mmとすることを特徴とする請求項10に記載の細胞保持容器。
- 前記弾性体の細胞接触面側が開放されていることを特徴とする請求項1に記載の細胞保持容器。
- 前記ゴム成分が、エチレンプロピレンジエンゴム、フッ素ゴム、付加架橋型シリコーンゴム、及びフッ素エラストマーから選ばれる少なくとも何れかを含むことを特徴とする請求項1に記載の細胞保持容器。
- 請求項1~13の何れかに記載の細胞保持容器を用いた細胞培養方法であって、幹細胞、前駆細胞、体細胞及び生殖細胞から選ばれる接着細胞と、血球系細胞、T細胞及びB細胞から選ばれる浮遊細胞との少なくとも何れかを含む細胞を分散させた細胞懸濁液を前記細胞保持容器に導入した後、前記細胞保持容器の弾性体を平板形状から窪んだ凹みを有する凹凸形状に変形する工程と、その凹みに前記細胞を播種して細胞集塊を形成した後、前記凹凸形状を前記平板形状に変形する工程とを有することを特徴とする細胞培養方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017527471A JP6227846B2 (ja) | 2015-07-06 | 2016-07-05 | 細胞保持容器及びそれを用いた細胞培養方法 |
EP16821411.2A EP3321351B1 (en) | 2015-07-06 | 2016-07-05 | Cell-holding container and cell culture method using same |
CN201680040018.1A CN108026501A (zh) | 2015-07-06 | 2016-07-05 | 细胞保持容器及使用该细胞保持容器的细胞培养方法 |
US15/742,679 US10563159B2 (en) | 2015-07-06 | 2016-07-05 | Cell-holding container and cell culture method using same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-135506 | 2015-07-06 | ||
JP2015135506 | 2015-07-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017006942A1 true WO2017006942A1 (ja) | 2017-01-12 |
Family
ID=57685705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/069940 WO2017006942A1 (ja) | 2015-07-06 | 2016-07-05 | 細胞保持容器及びそれを用いた細胞培養方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10563159B2 (ja) |
EP (1) | EP3321351B1 (ja) |
JP (1) | JP6227846B2 (ja) |
CN (1) | CN108026501A (ja) |
WO (1) | WO2017006942A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018170293A (ja) * | 2018-08-01 | 2018-11-01 | 株式会社オートネットワーク技術研究所 | コネクタ |
WO2019176867A1 (ja) * | 2018-03-12 | 2019-09-19 | 国立大学法人九州大学 | 培養基材、培養基材の製造方法、幹細胞の培養方法及び培養装置 |
WO2019215650A1 (en) * | 2018-05-08 | 2019-11-14 | Lidong Qin | Cell holding device for microinjection |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102318115B1 (ko) * | 2018-11-14 | 2021-10-27 | 주식회사 아모그린텍 | 세포 대량배양 시스템 |
JP7057878B2 (ja) * | 2019-10-25 | 2022-04-21 | 東洋製罐グループホールディングス株式会社 | 接着細胞培養用器材、培養容器、細胞の剥離方法、及び接着細胞培養用器材の製造方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61242576A (ja) * | 1985-04-18 | 1986-10-28 | Shin Etsu Polymer Co Ltd | 細胞培養用小球体 |
JP2005534001A (ja) * | 2002-06-07 | 2005-11-10 | ユニバーシティ オブ テクノロジー,シドニー | 網膜血管機能および周皮細胞機能をモジュレートする薬剤を同定するための新規スクリーニング、ならびにその診断および治療用途 |
JP2009198909A (ja) * | 2008-02-22 | 2009-09-03 | Canon Inc | 弾性ロールの製造方法 |
JP2011036221A (ja) * | 2009-08-18 | 2011-02-24 | Stem Biomethod Corp | 細胞収容装置 |
JP2014176463A (ja) * | 2013-03-14 | 2014-09-25 | Sumitomo Bakelite Co Ltd | バルーンカテーテル |
WO2015033824A1 (ja) * | 2013-09-06 | 2015-03-12 | 日東電工株式会社 | 波長変換シート、封止光半導体素子および光半導体素子装置 |
JP2015116150A (ja) * | 2013-12-18 | 2015-06-25 | 東洋製罐グループホールディングス株式会社 | 細胞培養方法、及び細胞培養装置 |
WO2015105029A1 (ja) * | 2014-01-09 | 2015-07-16 | 東京エレクトロン株式会社 | 細胞培養容器および細胞継代培養システム並びに細胞継代培養方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19751523A1 (de) * | 1997-11-20 | 1999-07-29 | Wacker Chemie Gmbh | Additionsvernetzte Siliconkautschuke mit niedrigem Druckverformungsrest |
US6048723A (en) * | 1997-12-02 | 2000-04-11 | Flexcell International Corporation | Flexible bottom culture plate for applying mechanical load to cell cultures |
US20060019376A1 (en) | 2004-07-21 | 2006-01-26 | Bungay Henry R Iii | Fermentation chamber and mixing apparatus |
CN101237904B (zh) * | 2005-06-03 | 2012-05-09 | 康奥尼斯有限公司 | 使用脉冲的电磁场治疗来调节骨软骨发育的方法 |
US7840272B2 (en) | 2005-06-03 | 2010-11-23 | Medrelief Inc. | Methods for modulating osteochondral development using bioelectrical stimulation |
DE102009028339A1 (de) * | 2009-08-07 | 2011-02-24 | Wacker Chemie Ag | Bioreaktor aus Siliconmaterialien |
CN101892152B (zh) * | 2010-08-03 | 2013-04-10 | 北京航空航天大学 | 一种牵张-电联合刺激细胞培养装置 |
JP5553076B2 (ja) * | 2012-03-13 | 2014-07-16 | 信越化学工業株式会社 | シリコーンゴム組成物 |
CN102676446B (zh) * | 2012-05-04 | 2013-07-31 | 华中科技大学 | 可变形曲面上细胞流体应力加载方法、装置及实验平台 |
JP6024047B2 (ja) | 2012-06-04 | 2016-11-09 | 国立大学法人京都大学 | 多能性幹細胞の培養方法及びそのための基材 |
JP2014018185A (ja) | 2012-07-23 | 2014-02-03 | Tokyo Electron Ltd | 領域選択的な細胞剥離方法並びにそれを利用した細胞の培養方法および継代方法 |
-
2016
- 2016-07-05 EP EP16821411.2A patent/EP3321351B1/en active Active
- 2016-07-05 WO PCT/JP2016/069940 patent/WO2017006942A1/ja active Application Filing
- 2016-07-05 CN CN201680040018.1A patent/CN108026501A/zh active Pending
- 2016-07-05 JP JP2017527471A patent/JP6227846B2/ja active Active
- 2016-07-05 US US15/742,679 patent/US10563159B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61242576A (ja) * | 1985-04-18 | 1986-10-28 | Shin Etsu Polymer Co Ltd | 細胞培養用小球体 |
JP2005534001A (ja) * | 2002-06-07 | 2005-11-10 | ユニバーシティ オブ テクノロジー,シドニー | 網膜血管機能および周皮細胞機能をモジュレートする薬剤を同定するための新規スクリーニング、ならびにその診断および治療用途 |
JP2009198909A (ja) * | 2008-02-22 | 2009-09-03 | Canon Inc | 弾性ロールの製造方法 |
JP2011036221A (ja) * | 2009-08-18 | 2011-02-24 | Stem Biomethod Corp | 細胞収容装置 |
JP2014176463A (ja) * | 2013-03-14 | 2014-09-25 | Sumitomo Bakelite Co Ltd | バルーンカテーテル |
WO2015033824A1 (ja) * | 2013-09-06 | 2015-03-12 | 日東電工株式会社 | 波長変換シート、封止光半導体素子および光半導体素子装置 |
JP2015116150A (ja) * | 2013-12-18 | 2015-06-25 | 東洋製罐グループホールディングス株式会社 | 細胞培養方法、及び細胞培養装置 |
WO2015105029A1 (ja) * | 2014-01-09 | 2015-07-16 | 東京エレクトロン株式会社 | 細胞培養容器および細胞継代培養システム並びに細胞継代培養方法 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019176867A1 (ja) * | 2018-03-12 | 2019-09-19 | 国立大学法人九州大学 | 培養基材、培養基材の製造方法、幹細胞の培養方法及び培養装置 |
JPWO2019176867A1 (ja) * | 2018-03-12 | 2021-02-25 | 国立大学法人九州大学 | 培養基材、培養基材の製造方法、幹細胞の培養方法及び培養装置 |
JP7320281B2 (ja) | 2018-03-12 | 2023-08-03 | 国立大学法人九州大学 | 培養基材、培養基材の製造方法、幹細胞の培養方法及び培養装置 |
AU2019234793B2 (en) * | 2018-03-12 | 2024-04-18 | Kyushu University, National University Corporation | Culture substrate, method for manufacturing culture substrate, and culturing method and culturing device for stem cell |
WO2019215650A1 (en) * | 2018-05-08 | 2019-11-14 | Lidong Qin | Cell holding device for microinjection |
JP2018170293A (ja) * | 2018-08-01 | 2018-11-01 | 株式会社オートネットワーク技術研究所 | コネクタ |
Also Published As
Publication number | Publication date |
---|---|
JPWO2017006942A1 (ja) | 2017-08-24 |
CN108026501A (zh) | 2018-05-11 |
US10563159B2 (en) | 2020-02-18 |
JP6227846B2 (ja) | 2017-11-08 |
EP3321351A1 (en) | 2018-05-16 |
US20180201891A1 (en) | 2018-07-19 |
EP3321351B1 (en) | 2020-09-23 |
EP3321351A4 (en) | 2018-12-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6227846B2 (ja) | 細胞保持容器及びそれを用いた細胞培養方法 | |
KR101828910B1 (ko) | 세포 박리 방법 | |
US8114646B2 (en) | Method for ultrasonic cell removal | |
WO2015105029A1 (ja) | 細胞培養容器および細胞継代培養システム並びに細胞継代培養方法 | |
WO2014142161A1 (ja) | 細胞培養容器、細胞培養装置、及び細胞培養方法 | |
JP3764959B2 (ja) | 細胞培養用容器および細胞培養方法 | |
JP6431341B2 (ja) | 接着性細胞の培養方法 | |
JP2007516726A (ja) | 細胞培養フラスコ | |
JP4649224B2 (ja) | 付着性細胞の培養方法および培養装置 | |
TWI547694B (zh) | 微流道生物反應器及其套組和使用方法 | |
KR101395203B1 (ko) | 미소 유체 세포배양장치와 그 제조방법, 그리고 그 세포배양장치를 이용한 세포 배양방법 | |
EP2430148A1 (en) | Bioreactorsystem | |
JP2005278564A (ja) | 細胞培養装置 | |
US20210062126A1 (en) | Microcavity dishes with sidewall including liquid medium delivery surface | |
JP6412369B2 (ja) | 接着性細胞の培養方法 | |
EP2862922A1 (en) | Cell culturing vessel, and cell culturing method and automated cell culturing device using same | |
JP2017046592A (ja) | 細胞培養容器および細胞継代培養システム並びに細胞継代培養方法 | |
Kim et al. | Microfabricated embryonic stem cell divider for large-scale propagation of human embryonic stem cells | |
CN104745450B (zh) | 一种固定化养殖装置及养殖方法 | |
JP2005295969A (ja) | 細胞分離装置 | |
CN219730953U (zh) | 一种干细胞培养设备 | |
JP7526384B2 (ja) | 細胞培養基材 | |
CN204918620U (zh) | 一种生物学细胞培养器 | |
JP2015156824A (ja) | 温度応答性高分子を用いた細胞培養装置 | |
JP2017046591A (ja) | 細胞培養システムおよび細胞の剥離方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16821411 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017527471 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15742679 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2016821411 Country of ref document: EP |