WO2016047737A1 - 細胞トレイ、並びに細胞構造体製造装置、方法、及びシステム - Google Patents
細胞トレイ、並びに細胞構造体製造装置、方法、及びシステム Download PDFInfo
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- WO2016047737A1 WO2016047737A1 PCT/JP2015/077056 JP2015077056W WO2016047737A1 WO 2016047737 A1 WO2016047737 A1 WO 2016047737A1 JP 2015077056 W JP2015077056 W JP 2015077056W WO 2016047737 A1 WO2016047737 A1 WO 2016047737A1
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/0062—General methods for three-dimensional culture
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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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- 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
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/08—Bioreactors or fermenters specially adapted for specific uses for producing artificial tissue or for ex-vivo cultivation of tissue
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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
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/04—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus by injection or suction, e.g. using pipettes, syringes, needles
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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
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/04—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus by injection or suction, e.g. using pipettes, syringes, needles
- C12M33/06—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus by injection or suction, e.g. using pipettes, syringes, needles for multiple inoculation or multiple collection of samples
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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
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/46—Means for regulation, monitoring, measurement or control, e.g. flow regulation of cellular or enzymatic activity or functionality, e.g. cell viability
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
Definitions
- the present invention relates to a cell tray used for producing a three-dimensional structure of cells, and an apparatus, method, and system.
- a method of creating a three-dimensional structure by three-dimensionally stacking a plurality of cell clusters is known.
- the cell mass arranged on the culture plate is taken out, and a plurality of cell masses are stuck into and stuck to each of a plurality of needle-shaped materials extending from the support, and the cell mass is fused with each other and then removed from the needle-shaped material.
- Various techniques are known as a technique for taking out a cell mass arranged on a culture plate and piercing it into a needle-like body.
- Patent Document 1 discloses a technique in which a cell mass on a culture plate is sucked into a pipette and then moved to a needle-like body to apply pressure to the cell mass and pierce the needle-like body.
- Patent Document 2 adsorbs a cell mass on a culture plate to the tip of a suction nozzle having a diameter shorter than the diameter of the cell mass, and the cell mass is needle-like until the needle-like body enters the inside from the tip of the suction nozzle.
- a technique is disclosed in which the cell mass is pushed into the needle-like body.
- the present invention has been made in view of these problems, and an object thereof is to obtain a cell tray that can easily pierce a large number of cell masses, and a cell structure manufacturing apparatus, method, and system.
- the cell tray according to the first invention of the present application is characterized by comprising a recess supporting the cell mass and a penetrating portion through which a needle-like member can pass and provided at the bottom of the recess.
- the penetrating portion is preferably made of a soft material through which the needle-like member can pass.
- the through portion may be a hole.
- the cell tray may further include a flat portion that is provided at the bottom of the recess and has a flat surface that is substantially perpendicular to the direction of travel of the needle-like member.
- the cell tray preferably further includes a marker indicating the position of the recess. Further, the diameter of the hole is preferably smaller than the diameter of the cell mass.
- the cell structure manufacturing apparatus may further include a receiving unit capable of holding a liquid.
- a cell structure manufacturing apparatus includes a cell tray including a concave portion that supports a cell mass, a penetrating portion provided at the bottom of the concave portion, and a puncturing portion that penetrates the cell mass, and a puncturing portion Is characterized by penetrating the cell mass supported by the recess until the tip of the puncture portion enters the hole.
- the cell tray includes a plurality of recesses and a plurality of penetration parts, and the puncture part further penetrates the cell mass arranged in another recess until the puncture part enters the other penetration part after penetrating the cell mass.
- the penetrating portion may be a hole, and the hole may have a bottomed cylindrical shape.
- the cell structure manufacturing apparatus further includes a receiving unit capable of holding a liquid, and the liquid held in the receiving unit can enter the recess.
- the recess has a mortar shape
- the hole has a cylindrical shape
- the recess is preferably coaxial with the hole.
- the puncture unit includes a plurality of needle-like bodies arranged in a row, the plurality of recesses are regularly arranged, and the interval between the centers of adjacent recesses is equal to the interval between the centers of adjacent needle-like bodies.
- a spheroid and a mixed mass of a scaffold material such as collagen and cells can be used, and the cell mass is preferably a spheroid.
- the method according to the third invention of the present application is characterized in that the puncture portion is penetrated through the cell mass arranged in the recess until the puncture portion enters the penetration portion of the cell tray.
- the cell structure manufacturing method includes a step of arranging a cell mass in the concave portion of the cell tray, and a cell placed in the concave portion until the puncture portion enters the penetrating portion provided in the bottom portion of the concave portion. And a step of penetrating the lump through the puncture portion.
- the cell structure manufacturing method includes a step of arranging a plurality of puncture parts penetrating a plurality of cell masses so that the cell masses are in contact with each other, and a step of extracting the puncture part from the cell masses after the cell masses are fused together It is preferable to further comprise. It is preferable to further include a step of sorting the cell mass, and in the arranging step, the cell mass sorted by the sorted step is preferably arranged.
- the cell structure manufacturing system includes a determination unit that inspects the characteristics of the cell mass, a sorting unit that sorts the cell mass according to the test result by the determination unit, and a sorting result by the sorting unit.
- a discharge unit that arranges the cell mass in the cell tray, a puncture unit that penetrates the plurality of cell masses arranged in the cell tray, and a holding unit that arranges and holds the plurality of puncture units that penetrate the plurality of cell masses It is characterized by providing.
- An assembling unit that stores the plurality of holding units so that the cell masses are in contact with each other, a first circulation unit that circulates liquid inside the holding unit, and a first circulating unit that circulates liquid outside the holding unit and inside the assembling unit It is preferable to further include a post-processing module including two reflux parts.
- the cell tray includes a base, a recess provided at the base and supporting the cell mass, and a penetrating portion provided at the bottom of the recess, and the puncturing portion is recessed until the tip of the puncturing portion enters the penetrating portion. It is preferable to penetrate the cell mass supported by the cell.
- a cell tray that can easily pierce a large number of cell clusters, and a cell structure manufacturing apparatus, method, and system are obtained.
- Sorter module 11 Cell lump supply unit 12 Collection unit 12a Pipetter 12b Cylindrical tube 12c Tube support unit 13 Sorter 13a Hopper unit 13b Flow unit 13c Determination unit 13d Sorting unit 13e Discharge unit 14 Cell tray 14a Hole 14b Recess 14c Leg unit 14d ID 14e Base part 14f Surface 14g Marker 14h Opening part 14i Bottom part 14j Flat part 14k Through part 15 Magazine 16 Discarding part 20 Stacking module 21 Needle feeder 21a Needle 21b Needle holder 22 Sure 22a Chuck 22b Laser oscillation part 22c Laser light receiving part 22c Laser light receiving part 22c Drive unit 24 Table 24a Protrusion 25 Assembly unit 25a Alignment frame 25b Upper groove 25c Lower groove 25d Window portion 25e Upper rod body 25f Lower rod body 25g Side rod body 26 Cell stacking section 30 Post-processing module 31 Culture section 32 First circulation Portion 32a First pump 32b First piping 33 Second circulating portion 33a Second pump and heater 33b Second piping
- the cell tray 14 mainly includes a base portion 14e, a hole 14a, a concave portion 14b, and a leg portion 14c.
- the concave portion 14b is formed in the base portion 14e, and the hole 14a is provided on the bottom surface of the concave portion 14b.
- the base portion 14e is a rectangular plate made of a non-cell-adhesive material, for example, a resin whose surface is processed with Teflon (registered trademark), or stainless steel.
- Teflon registered trademark
- the hole 14a and the recessed part 14b penetrate in the thickness direction of the base part 14e.
- the hole 14a and the recess 14b form a cell support portion.
- the recess 14b is, for example, a mortar-shaped well, and has a predetermined depth, for example, approximately half, in the thickness direction from the surface of the base 14e.
- An opening 14h that opens to the surface 14f of the base 14e in the recess 14b and a bottom 14i formed inside the base 14e form a circle, and the diameter of the opening 14h is longer than the diameter of the bottom 14i.
- a cross section passing through the axis of the recess 14b has a truncated cone shape.
- the hole 14a has a cylindrical shape, and the diameter of the hole 14a is equal to the diameter of the bottom 14i.
- a cross section passing through the axis of the hole 14a has a rectangular shape.
- the hole 14a and the recess 14b are formed to be coaxial.
- the leg portion 14c is made of the same material as the base portion 14e, and extends from the end portion of the base portion 14e in the thickness direction of the base portion 14e. Thereby, when the cell tray 14 is disposed on the table 24, a space is formed between the bottom surface of the table 24 and the base portion 14e.
- the recesses 14b are regularly arranged in a matrix on the surface 14f. The intervals between the centers of adjacent recesses 14b in one row are equal.
- the ID 14d and the marker 14g are provided on the surface 14f of the base 14e.
- the ID 14d is a symbol unique to the cell tray 14 and functions as an identifier of the individual cell tray 14 and is described on the surface 14f.
- the marker 14g is, for example, four line segments described on the surface 14f and around the recess 14b. Two markers 14g are arranged on each of two straight lines orthogonal to the central axis of the recess 14b and orthogonal to each other.
- the concave portion 14b has a mortar shape
- the cell mass has a substantially spherical shape.
- the cell mass may be a cell aggregate mass (spheroid) and a mixed mass of a scaffold material such as collagen and cells, but spheroid is preferable.
- the table 24 is a tray having a shape and a size that can accommodate the entire cell tray 14. Inside the table 24, a cell tray 14 and a buffer solution such as phosphate buffered saline or a culture solution containing a physiologically active substance are arranged. The amount of the buffer solution or the culture solution is such that the entire cell tray 14 is immersed in the buffer solution or the culture solution so that the cell mass does not come into contact with air.
- the table 24 includes a plurality of positioning protrusions 24a.
- the positioning projections 24a are projections 24a having a substantially rectangular parallelepiped shape projecting inward from the inner side surface and the bottom surface of the table 24. Two positioning projections 24a are provided at one corner, for a total of eight projections 24a.
- the length that the positioning protrusion 24a protrudes from the bottom surface of the table 24 is such that the cell tray 14 engages with the leg portion 14c to the extent that the cell tray 14 cannot move.
- the length by which the positioning protrusion 24 a protrudes from the inner surface of the table 24 is such that the cell tray 14 can be restrained at a certain position inside the table 24. The buffer solution or the culture solution can easily pass through the hole 14a.
- the cell stacking unit 26 mainly includes a cell tray 14, a skewer 22, and a table 24.
- the skewer 22 mainly includes a chuck 22a, a laser oscillation unit 22b, a laser light receiving unit 22c, a position determination unit 22d, and a drive unit 22e.
- the chuck 22a acquires and holds the needle 21a from a needle feeder 21 described later.
- the needle 21a is a conical needle-shaped body made of a non-cell-adhesive material, for example, stainless steel.
- the diameter of the cross section of the needle 21a is an arbitrary value that does not destroy the cell mass when the cell mass is pierced and does not prevent the fusion of the cell mass, and takes a value of, for example, 50 to 300 micrometers in diameter.
- the cell non-adhesive property means a property capable of preventing cells from attaching via an extracellular adhesion factor.
- the laser oscillation unit 22 b irradiates the cell tray 14 placed on the table 24 with laser light.
- the laser light receiving unit 22c receives the reflected light reflected by the cell tray 14.
- the position determination unit 22d calculates the positional relationship between the needle 21a and the cell tray 14 based on the reflected light, and calculates the drive amount of the needle 21a based on the positional relationship. The means for calculating the positional relationship will be described later.
- the drive unit 22e drives the chuck 22a based on the drive amount obtained by the position determination unit 22d, and pierces the needle 21a into the cell mass arranged on the cell tray 14. Furthermore, the drive unit 22e moves the needle 21a that has pierced the cell mass to the assembly unit 25.
- the material of the needle 21a and the cell tray 14 is not limited to stainless steel, but other materials having cell non-adhesive properties, that is, polypropylene, nylon, material whose surface is covered with fluorine, Teflon (registered trademark), poly- Resin such as HEMA, acrylic plate, vinyl chloride plate, ABS resin plate, polyester resin plate, polycarbonate plate, PP (polypropylene), ABS (acrylonitrile butadiene styrene), PE (polyethylene), POM (polyacetal), PC (polycarbonate) ), PEEK (polyetheretherketone), MCN (monomer casting nylon), 6N (6 nylon), 66N (66 nylon) and the like, but are not limited thereto. In addition to these materials, materials with reduced cell adhesion can be used.
- materials with reduced cell adhesion can be used.
- the positioning protrusion 24 a is provided between the tip of the leg portion 14 c and the bottom portion of the table 24.
- the laser oscillation unit 22 b irradiates the laser beam toward the cell tray 14 placed on the table 24.
- the laser light receiving unit 22c receives the reflected light reflected by the cell tray 14.
- the position determination unit 22d confirms the position of the marker 14g based on the brightness of the reflected light, and thereby calculates the positional relationship between the needle 21a and the cell tray 14. Then, the position determination unit 22d obtains the driving amount of the needle 21a based on the calculated positional relationship.
- the drive unit 22e drives the chuck 22a based on the drive amount obtained by the position determination unit 22d, and moves the needle 21a directly above the cell mass 101a arranged on the cell tray 14. Next, the drive unit 22e lowers the needle 21a toward the cell mass 101a and pierces the cell mass 101a. When the needle 21a is lowered by a predetermined length, the tip of the needle 21a enters the hole 14a. By providing the hole 14a, the needle 21a can be pierced with the cell mass 101a by a predetermined length. After lowering the needle 21a by a predetermined length, the drive unit 22e raises the needle 21a. At this time, the needle 21a is stuck in the cell mass.
- the laser oscillation unit 22b, the laser light receiving unit 22c, the position determination unit 22d, and the drive unit 22e again perform the same processing as described above, thereby moving the needle 21a immediately above the next cell mass 101b, The cell mass 101b is pierced (see FIG. 5). By repeating these processes a desired number of times, a desired number of cell masses are penetrated through the needle 21a (see FIG. 6).
- the amount by which the needle 21a is lowered toward the cell mass is determined according to the size of the cell mass and the number of cell masses to be punctured, in other words, the position of the cell mass on the needle 21a.
- the amount of descending is the longest, and in the next cell mass, the amount of descent is slightly shorter than the diameter of the cell mass.
- the cell masses are in close contact with each other and can be easily fused.
- the amount of lowering is determined so that the first cell mass is less than the amount of descent shown in FIG. 4, that is, the first cell mass is further moved by the second cell mass that is stabbed shallowly. May be.
- the drive unit 22e moves the needle 21a pierced with the cell mass to the assembly unit 25 described later.
- the cell structure manufacturing system mainly includes a cell tray 14, a sorter module 10 (see FIG. 7), a stacking module 20, and a post-processing module 30 (see FIG. 8).
- the sorter module 10 mainly includes a cell mass supply unit 11, a collection unit 12, a sorter 13, a cell tray 14, a magazine 15, and a disposal unit 16, and has a function of arranging the cell mass on the cell tray 14. Have.
- the cell mass supply unit 11 takes in the plate 5 on which the cell mass is arranged from the outside of the sorter module 10.
- the plate 5 will be described later.
- the magazine 15 stores a plurality of cell trays 14.
- the cell tray 14 stored in the magazine 15 is carried to the sorter 13 by a tray feeder (not shown).
- the collection unit 12 mainly includes a pipetter 12a and a plate 5.
- the pipetter 12a mainly includes a plurality of cylindrical tubes 12b having tip portions having a diameter larger than the diameter of the cell mass, and a tube support portion 12c that supports the plurality of cylindrical tubes 12b arranged in a line at equal intervals. .
- the cells placed on the plate 5 aggregate after each other to form a cell mass 100 and remain in these depressions.
- a negative pressure is applied to the end of the cylindrical tube 12b opposite to the tip, and the cylindrical tube 12b adsorbs the cell mass 100 disposed on the plate 5 to the tip by the negative pressure. That is, when the pipette sucks, the cell mass 100 is arranged at the tip.
- the pipetter 12 a that has adsorbed the cell mass 100 to the tip of the cylindrical tube 12 b puts the cell mass 100 into the sorter 13.
- the sorter 13 mainly includes a hopper portion 13a, a flow portion 13b, a determination portion 13c, a sorting portion 13d, and a plurality of discharge portions 13e, and the cell mass 100 taken in from the hopper portion 13a according to the characteristics thereof. Have the function of inspecting and sorting.
- the characteristics of the cell mass 100 are the size, shape, cell viability, etc. of the cell mass 100.
- the hopper 13a has a funnel, and takes in and accumulates the cell mass 100 from the pipettor 12a through the funnel mouth.
- the flow unit 13b is a tube having an inner diameter that allows the cell mass 100 to pass through, and connects the funnel foot to the determination unit 13c, the sorting unit 13d, the discharge unit 13e, and the disposal unit 16.
- the determination unit 13c examines and determines the characteristics of the cell mass 100.
- the sorting unit 13d sends the cell mass 100 to the discard unit 16 or the plurality of ejection units 13e according to the determination result of the determination unit 13c. That is, the cell mass 100 is sorted by the determination unit 13c and the sorting unit 13d.
- the discharge part 13e arranges the cell mass 100 in the concave part 14b of the cell tray 14.
- the discarding unit 16 stores the cell mass 100 received from the sorting unit 13d.
- the laminated module 20 mainly includes a needle feeder 21, a skewer 22, a table 24, and an assembly unit 25.
- the needle feeder 21 mainly includes a plurality of needles 21a forming a puncture portion or a needle-like body, and a needle holder 21b.
- the needle holder 21b holds a plurality of needles 21a.
- the cell tray 14 stored in the magazine 15 is placed on the table 24 and carried to the lower part of the skewer 22 by a tray feeder (not shown).
- the assembly unit 25 includes an alignment frame 25a that forms a holding unit.
- the alignment frame 25a is a rectangular frame, and includes a first bar body 25e, a second bar body 25f, two side bar bodies 25g, a plurality of first grooves 25b, and a plurality of first bars 25b. 2 grooves 25c.
- the first rod 25e, the second rod 25f, and the side rod 25g have a rectangular parallelepiped shape.
- the lengths of the first rod 25e and the second rod 25f are equal, and the lengths of the two side rods 25g are equal.
- the first rod body 25e, the second rod body 25f, and the side bar body 25g have an expansion / contraction mechanism that can expand and contract in the longitudinal direction, for example, a telescopic mechanism. Therefore, the lengths of the first rod body 25e, the second rod body 25f, and the side rod body 25g can be determined as appropriate depending on the size of the three-dimensional cell structure to be manufactured.
- channel 25b is a groove
- channel 25c is a groove
- the number of the first grooves 25b and the number of the second grooves 25c are equal, and the axis of the first grooves 25b and the axis of the second grooves 25c coincide.
- the distance between adjacent first grooves 25b is the same as or slightly shorter than the diameter of the cell mass. The same applies to the second groove 25c. This makes it easy for the cell masses to come into close contact with each other. It is also possible to change the distance between the adjacent first groove 25b and second groove 25c according to the diameter of the cell mass using the same expansion / contraction mechanism as described above.
- the number of the first grooves 25b and the second grooves 25c is appropriately determined depending on the size of the cell three-dimensional structure to be manufactured.
- a rectangular window 25d is formed inside the alignment frame 25a by the first rod 25e, the second rod 25f, and the two side rods 25g.
- a needle 21a pierced with a plurality of cell clusters is loosely fitted in the first groove 25b and the second groove 25c.
- FIG. 12 shows a state in which the needle 21a is loosely fitted in all the first grooves 25b and the second grooves 25c.
- the alignment frames 25 a are stacked in the thickness direction inside the assembly portion 25. The number of the alignment frames 25a to be stacked is appropriately determined depending on the size of the three-dimensional cell structure to be manufactured. After the desired number of alignment frames 25a are stacked, the alignment frames 25a in which the needles 21a are not loosely mounted are stacked, and all the needles 21a are fixed to the alignment frames 25a.
- the post-processing module 30 mainly includes a culture unit 31, a first circulation unit 32, and a second circulation unit 33.
- the culture unit 31 stores a plurality of alignment frames 25 a stacked in the assembly unit 25.
- the first circulating portion 32 includes a first pump 32a and a first pipe 32b.
- the first pump 32a is connected to the inside of the alignment frame 25a via the first pipe 32b, and circulates the buffer solution or the culture solution. Since the buffer solution or the culture solution contains nutrients, oxygen, and the like, the cell mass located inside the alignment frame 25a can be fused without being killed.
- the second circulating portion 33 includes a second pump and heater 33a and a second pipe 33b.
- the second pump and heater 33a is connected to the outside of the alignment frame 25a and the inside of the culture unit 31 via the second pipe 33b, and circulates while keeping the temperature of the heat retaining liquid constant. By circulating the heat retaining solution, the cell mass is kept at a constant temperature. When a predetermined period elapses in this state, the cell clusters are fused together. Thereafter, when all the needles 21a are pulled out from the cell mass in a state where the cell mass is stored in the alignment frame 25a, the cell three-dimensional structure 101 completed in the alignment frame 25a is obtained (see FIG. 14).
- the cell mass can be easily placed at a specific position.
- the position of the cell mass can be easily identified using the marker 14g, whereby the cell mass can be quickly stabbed with a needle.
- the hole 14a does not penetrate in the thickness direction of the base portion 14e, and may have a bottomed cylindrical shape (see FIG. 15).
- the depth of the hole 14a is such a length that the tip of the needle 21a does not hit the bottom of the hole 14a when the needle 21a is lowered by a predetermined length.
- a flat part 14j having a substantially horizontal plane may be provided between the hole 14a and the concave part 14b (see FIG. 19).
- substantially horizontal means substantially perpendicular to the traveling direction of the needle.
- the flat portion 14j supports the cell mass in the direction opposite to the traveling direction of the needle 21a. Thereby, the possibility that the cell mass is dragged by the needle 21a and drawn into the hole 14a can be reduced.
- the penetration part 14k supports the cell mass in the direction opposite to the traveling direction of the needle 21a, and the needle 21a penetrates the penetration part 14k after penetrating the cell mass. Thereby, the possibility that the cell mass is dragged by the needle 21a and drawn into the cell tray 14 can be reduced.
- the inner diameter of the hole 14a may be smaller or larger than the outer diameter of the needle 21a.
- the needle 21a penetrates the penetration part 14k while further expanding the hole 14a after penetrating the cell mass.
- the penetration part 14k supports the cell mass in the direction opposite to the traveling direction of the needle 21a. Thereby, the possibility that the cell mass is dragged by the needle 21a and drawn into the hole 14a can be reduced.
- a cell structure having an arbitrary shape can be manufactured by controlling the position of the cell mass inserted into the needle 21a.
- the cell structure manufacturing apparatus can also manufacture a cell three-dimensional structure having a hollow structure.
- the shape and size of the hollow structure can be arbitrarily designed.
- the amount by which the needle 21a is lowered toward the cell mass is determined according to the size of the hollow structure. That is, the amount of descent is reduced by a length corresponding to the size of the hollow structure.
- a space corresponding to the size of the hollow structure is spaced between the cell mass 101a and the cell mass 101b.
- the products obtained in this manner are arranged in the alignment frame 25a (see FIG. 17) and cultured in the post-processing module 30 for a predetermined period, a cell three-dimensional structure having a hollow structure can be manufactured.
- the first circulating portion 32 can deliver nutrients, oxygen, and the like contained in the buffer solution or the culture solution to the cells inside the cell mass through the hollow structure. It becomes possible. Thereby, it becomes possible to manufacture a cell three-dimensional structure with a larger volume.
- the axial direction length of the recessed part 14b and the hole 14a is not limited to the above-mentioned thing.
- the hole 14a is not provided, and the concave portion 14b penetrates the base portion 14e in the thickness direction, in other words, the concave portion 14b may also serve as the hole.
- a plurality of needles may be used simultaneously. That is, each of the plurality of needles pierces the cell mass at the same time. Thereby, the time required for the process of piercing all the cell masses can be shortened. At this time, the distance between the centers of the adjacent concave portions 14b is equal to the distance between the centers of the adjacent needle-like bodies.
- the number of the positioning protrusions 24a is not limited to the above-described number, and may be any number as long as the cell tray 14 can be restrained to a certain position inside the table 24.
- the shapes of the opening 14h and the bottom 14i of the recess 14b are not limited to a circle, and may be a rectangle, an ellipse, or other shapes.
- the diameter of the hole 14a and the diameter of the bottom part 14i do not need to be equal, and the recessed part 14b and the hole 14a should just penetrate.
- the hole 14a may not be cylindrical.
- the cell three-dimensional structure may be composed of only the same type of cells, or may include a plurality of types of cells.
- the same type of cell means a functionally equivalent cell derived from the same tissue or organ of a single type.
- a cell construct containing a plurality of types of cells is obtained by applying cell clusters formed from different types of cells (for example, cell cluster A consisting of a cells and cell cluster B consisting of b cells) to the present invention. be able to.
- the a cell and the b cell may be arbitrary cells as long as their cell masses are fused.
- the a cell and the b cell may be, for example, cells derived from different tissues (or organs) of the same type or cells derived from the same type of different tissues (or organs).
- the cell mass may include one type or a plurality of types of cells.
- the cell three-dimensional structure may be manufactured using only a cell cluster including one type of cell, or may be manufactured using a plurality of cell clusters composed of different types of cells. It may be produced using only a cell mass containing seed cells, or may be produced using a cell mass containing one type of cell and a cell mass containing a plurality of types of cells.
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Abstract
Description
10 ソーターモジュール
11 細胞塊供給部
12 収集部
12a ピペッタ
12b 円筒管
12c 管支持部
13 ソーター
13a ホッパー部
13b フロー部
13c 判定部
13d 分取部
13e 吐出部
14 細胞トレイ
14a 孔
14b 凹部
14c 脚部
14d ID
14e 基部
14f 表面
14g マーカ
14h 開口部
14i 底部
14j 平坦部
14k 貫通部
15 マガジン
16 廃棄部
20 積層モジュール
21 ニードルフィーダ
21a ニードル
21b ニードルホルダ
22 スキュア
22a チャック
22b レーザ発振部
22c レーザ受光部
22d 位置判定部
22e 駆動部
24 テーブル
24a 突起
25 組立部
25a 整列枠
25b 上部溝
25c 下部溝
25d 窓部
25e 上部棒体
25f 下部棒体
25g 側部棒体
26 細胞積層部
30 後処理モジュール
31 培養部
32 第1の環流部
32a 第1のポンプ
32b 第1の配管
33 第2の環流部
33a 第2のポンプ及びヒータ
33b 第2の配管
Claims (23)
- 細胞塊を支持する凹部と、
針状部材が通過可能であって、前記凹部の底部に設けられた貫通部とを備える細胞トレイ。 - 前記貫通部は、針状部材が通過可能である軟素材から成る請求項1に記載の細胞トレイ。
- 前記貫通部は孔である請求項1又は2に記載の細胞トレイ。
- 前記凹部の底部に設けられ、前記針状部材の進行方向に対して略直角な平面を有する平坦部をさらに備える請求項1から3のいずれかに記載の細胞トレイ。
- 前記凹部の位置を示すマーカをさらに備える請求項1から4のいずれかに記載の細胞トレイ。
- 前記貫通部は孔であり、前記孔の直径は、細胞塊の直径よりも小さい請求項1から5のいずれかに記載の細胞トレイ。
- 前記細胞塊はスフェロイドである請求項1から6のいずれかに記載の細胞トレイ。
- 液体を保持可能な受部をさらに備える請求項1から7のいずれかに記載の細胞トレイ。
- 細胞塊を支持する凹部と、前記凹部の底部に設けられた貫通部とを備える細胞トレイと、
細胞塊に貫通する穿刺部とを備え、
前記穿刺部は、前記穿刺部の先端が前記貫通部に進入するまで、前記凹部に支持される細胞塊を貫通する細胞構造体製造装置。 - 前記細胞トレイは複数の前記凹部及び複数の前記貫通部を備え、
前記穿刺部は、細胞塊に貫通した後、他の前記貫通部に前記穿刺部が進入するまで、他の前記凹部に配置された細胞塊をさらに貫通する請求項9に記載の細胞構造体製造装置。 - 前記貫通部は孔であって、前記孔は有底筒状である請求項9又は10に記載の細胞構造体製造装置。
- 液体を保持可能な受部をさらに備え、前記受部に保持された液体が前記凹部に浸入可能である請求項9から11のいずれかに記載の細胞構造体製造装置。
- 前記貫通部は孔であって、前記凹部はすり鉢形状を有し、前記孔は円筒形状を有し、前記凹部は前記孔と同軸である請求項9から12のいずれかに記載の細胞構造体製造装置。
- 前記穿刺部は一列に並べられた複数の針状体を備え、
複数の前記凹部は規則的に配列され、
隣り合う前記凹部の中心どうしの間隔は、隣り合う前記針状体の中心どうしの間隔と等しい請求項9から13のいずれかに記載の細胞構造体製造装置。 - 前記細胞塊はスフェロイドである請求項9から14のいずれかに記載の細胞構造体製造装置。
- 請求項1から8のいずれかに記載の細胞トレイの貫通部に前記穿刺部が進入するまで、前記凹部に配置された細胞塊に穿刺部を貫通させる方法。
- 請求項1から8のいずれかに記載の細胞トレイの凹部に細胞塊を配置する工程と、
前記凹部の底部に設けられた貫通部に前記穿刺部が進入するまで、前記凹部に配置された細胞塊に穿刺部を貫通させる工程とを備える細胞構造体製造方法。 - 前記凹部及び前記貫通部は複数であって、前記配置する工程は複数の前記凹部の各々に細胞塊を配置し、
前記貫通させる工程は、他の前記凹部に配置された細胞塊に前記穿刺部をさらに貫通させる工程を繰り返す請求項17に記載の細胞構造体製造方法。 - 複数の細胞塊に貫通した複数の穿刺部を、前記細胞塊どうしが接触するように配置する工程と、
前記細胞塊どうしが融合した後に、前記穿刺部を前記細胞塊から引き抜く工程とをさらに備える請求項18に記載の細胞構造体製造方法。 - 細胞塊を選別する工程をさらに備え、前記配置する工程は、前記選別された工程によって選別された細胞塊を配置する請求項17から19のいずれかに記載の細胞構造体製造方法。
- 細胞塊の特徴を検査する判定部と、
前記判定部による検査結果に応じて前記細胞塊を分別する分取部と、
前記分取部による分別結果に応じて前記細胞塊を細胞トレイに配置する吐出部と、
細胞トレイに配置された複数の前記細胞塊を貫通する穿刺部と、
複数の前記細胞塊を貫通した複数の穿刺部を配列して保持する保持部とを備える細胞構造体製造システム。 - 複数の前記保持部を前記細胞塊どうしが接触するように格納する組立部と、前記保持部の内部に液体を循環させる第1の環流部と、前記保持部の外部かつ前記組立部の内部に液体を循環させる第2の環流部とを備える後処理モジュールをさらに備える請求項21に記載の細胞構造体製造システム。
- 前記細胞トレイは、基部と、前記基部に設けられて細胞塊を支持する凹部と、前記凹部の底部に設けられた貫通部とを備え、前記穿刺部は、前記穿刺部の先端が前記貫通部に進入するまで、前記凹部に支持される細胞塊に貫通する請求項21又は22に記載の細胞構造体製造システム。
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