WO2007083465A1 - 細胞培養方法及びその方法を用いた自動培養装置 - Google Patents
細胞培養方法及びその方法を用いた自動培養装置 Download PDFInfo
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- WO2007083465A1 WO2007083465A1 PCT/JP2006/324903 JP2006324903W WO2007083465A1 WO 2007083465 A1 WO2007083465 A1 WO 2007083465A1 JP 2006324903 W JP2006324903 W JP 2006324903W WO 2007083465 A1 WO2007083465 A1 WO 2007083465A1
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- 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
- C12N5/06—Animal cells or tissues; Human cells or tissues
- C12N5/0602—Vertebrate cells
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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
- C12M3/00—Tissue, human, animal or plant cell, or virus culture apparatus
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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
- C12M23/00—Constructional details, e.g. recesses, hinges
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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
- C12M23/14—Bags
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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
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
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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
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
- C12M41/14—Incubators; Climatic chambers
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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
- C12M41/30—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
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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
- C12M41/48—Automatic or computerized control
Definitions
- the present invention relates to a cell culture method and a cell culture apparatus that executes the method, and in particular, can obtain a large amount of cultured cells without mixing germs or the like into human cultured cells (contamination).
- the present invention relates to a cell culture method and an automatic cell culture apparatus.
- Regenerative medicine requires a large amount of cells constituting human tissues and organs, but artificially cultured cells are used as cells required for regenerative medicine.
- Patent Document 1 As a conventional apparatus related to cell culture, as disclosed in Patent Document 1, a culture apparatus capable of controlling the atmosphere such as temperature and gas concentration in the culture chamber and disclosed in Patent Document 2. such as those, in addition to the control of the atmosphere in the culture chamber, on of the cultured tissue into the culture vessel, the culture drug supply and discharge, further, the automatic culture device power s was also possible to control the atmosphere in the culture room.
- Patent Document 1 Japanese Patent No. 3021789
- Patent Document 2 International Publication WO2005 / 059091
- Patent Document 3 discloses a subculture technique for proliferating large amounts of experimental cells such as Paramecium.
- a new culture medium is supplied to a cultured cell cultured in a culture container filled with a medium to wash away an old culture medium and a part of the cultured cell.
- the cultured cells in the culture vessel are diluted.
- cells washed away with the medium are used for measurement as they are, so it seems unsuitable for obtaining a large amount of pure cells for human regenerative medicine.
- Patent Document 3 Japanese Patent Application Laid-Open No. 2004-208663
- An object of the present invention is to provide a cell culturing method and an automatic culturing apparatus that can obtain a large amount of cultured cells used for regenerative medicine of the human body while addressing the above problems.
- the culture method of the present invention comprises:
- a step of injecting cells and medium removed from the human body into a culture container (2) culturing the cells while ventilating and replacing the medium in the culture container containing the medium and the cells. And (3) after washing the cultured cells cultured in the incubator, recovering the washed cells from the culture vessel to the cell collection vessel leaving a part of the cells, (4) A culture medium is poured into the cultured cells left in the culture vessel in the step (3). And (5) the step (2) and the step (4) are repeatedly executed.
- an automatic culture apparatus of the present invention includes a chemical supply unit that individually stores a plurality of chemicals necessary for culture, an incubator unit that stores a cell culture container, A recovery unit for recovering the cultured cells cultured in the culture container; supply of the cells to the culture container; supply of a drug from the chemical supply unit to the culture container; and force of the culture container to the recovery unit
- a control unit that controls the supply / discharge unit for discharging the cultured cells, the chemical supply operation to the culture vessel, the cell culture operation in the culture vessel, and the discharge operation of the cultured cells from the culture vessel.
- FIG. 1 is a block diagram showing a unit configuration of an automatic culture apparatus of the present invention.
- FIG. 2 is a block diagram showing a schematic configuration of the automatic culture apparatus according to the first embodiment of the present invention.
- FIG. 3 is a perspective view of a culture vessel according to the first embodiment of the present invention.
- FIG. 4 is a detailed side view of the culture vessel shown in FIG.
- FIG. 5 is a cross-sectional view showing a Nozure piping portion of a culture vessel.
- FIG. 6 is a flowchart of the culture method of the present invention.
- FIG. 7 is a block diagram showing a schematic configuration of an automatic culture apparatus according to a second embodiment of the present invention.
- FIG. 1 is a block diagram showing an outline of the configuration of the automatic culture apparatus according to the first embodiment of the present invention. It is.
- reference numeral 200 denotes a chemical supply unit for individually storing a plurality of chemicals necessary for cell culture of human cells, and the inside thereof is a predetermined temperature lower than normal temperature so that the stored chemicals are not deteriorated. It is configured so that it can be kept in range.
- Reference numeral 300 denotes an incubator unit in which a culture vessel is stored.
- Reference numeral 400 denotes a recovery unit that recovers cells cultured in the incubator unit and used chemicals.
- 500 is a supply / discharge unit that supplies and discharges chemicals and cells between the chemical supply unit 200, the incubator unit 300, and the recovery unit 400.
- An environmental protection unit 600 controls the temperature of the chemical supplied from the chemical supply unit 200 to the incubator, the temperature in the incubator unit 300, and the concentration of carbon dioxide (CO 2). 700 ink
- An observation unit for observing the state of cell culture in the incubator housed in the incubator unit 30 includes a microscope, a moving mechanism of the microscope, and a lighting device that illuminates the inside of the culture vessel.
- a central processing unit (CPU) 800 controls the collection unit 400, the supply / discharge unit 500, the environmental protection unit 600, and the observation unit 700.
- Reference numeral 900 denotes an operation unit including an operation device for inputting an operation command to the automatic culture apparatus, a monitor for displaying an image obtained by the observation unit 700, and the like.
- the medicine supply unit 200 includes a storage box (not shown) having an openable / closable lid, and a plurality of (three in the illustrated example) medicine storage parts arranged in a predetermined position by a support member inside the storage box. It has chemical bags 5, 7, and 9. In order to prevent the chemicals contained in the chemical bags 5, 7, and 9 from deteriorating, the storage box blocks the chemical bag storage space from the outside and maintains the chemical bag storage space at a predetermined temperature. It is equipped with a heat insulating material. Drug bags 5, 7, and 9 are foldable, flexible and not toxic to cells, and it is preferable to use infusion bags made of materials. Specifically, for example, it is preferable to use a bag made of vinyl chloride or silicon rubber.
- the chemical noses 5, 7, and 9 contain the chemicals necessary for the culture, in this example, the cleaning solution, the stripping agent, and the culture medium, respectively.
- the release agent contained in the drug bag 7 is a drug that is required when cells with adhesive properties are to be cultured, and when the cells to be cultured are free cells. There is no need.
- the incubator unit 300 includes an incubator 3 that is a thermostatic bath and a culture container 1 that is housed in the incubator 3. Like the chemical supply unit 200, the incubator 3 has a lid that can be opened and closed, and the inside can be sealed by closing the lid.
- the incubator 3 has an observation window whose bottom surface facing the culture vessel 1 is formed of a transparent material, so that the culture vessel 1 can be observed from the outside of the incubator 3.
- the incubator 3 is controlled at a constant temperature so that the interior becomes a predetermined temperature by a heater described later. For this reason, in order to increase the heating efficiency of the heater, it is preferable that the periphery except the observation window is covered with a heat insulating material.
- the culture vessel 1 is for culturing cells removed from the human body, and is a material that is not toxic to the cells and is formed using a light-transmitting material such as polystyrene or polyethylene phthalate. is there.
- the inside of the container 1 is maintained in a sealed state with respect to the external space so that contamination between the cells inserted therein and the cultured cells and germs does not occur.
- the container attachment part of the tubes attached to the culture container 1 is sealed.
- the recovery unit 400 includes a plurality (three in this example) of cell recovery bags 11, 13, and 15 for recovering the cultured cells cultured in the culture container 1, and a waste liquid container 65 for recovering used chemicals. And a known heat sealing mechanism 66 for heat sealing the tubular injection portions of the cell recovery bags 11, 13, and 15.
- Cell recovery bags 11, 13, and 15 use an infusion bag formed of a material that is foldable and has no toxicity to cells, like drug bags 5, 7, and 9. Is preferred. Specifically, for example, it is preferable to use a bag made of vinyl chloride or silicon rubber.
- the size of each of the cell collection bags 11, 13, and 15 is preferably such that it has a storage capacity that can store cells cultured in the culture vessel 1 in one culture.
- the number of cell recovery bags provided in the recovery unit 400 is three in this example. This number is sufficient to cultivate at least the same tissue cell continuously and repeatedly in the culture vessel 1. It is desirable to have a number.
- the supply / discharge unit 500 includes a supply pump 35 for supplying chemicals, cells, and air into the culture container 1, a discharge pump 61 for discharging the cells and used chemicals cultured in the culture container 1, Liquid feeding tubes 23, 25, 27, which form a flow path between the chemical bags 5 , 7 , 9 and the culture vessel 1 29, a gas tube 38 for connecting the liquid supply tube 29 and a filter 37 (described later) provided in the incubator 3, and a cell injection tube 39 for connecting the liquid supply tube 29 and the liquid storage container 43.
- the liquid storage container 43 stores cells extracted from a living body and suspended in a culture medium and the like, and has an opening covered with a flexible film 45.
- a film 45 forming a lid of the liquid storage container 43 is provided for puncturing the syringe 41 containing the suspended cells. Therefore, it is desirable that the film 45 has a predetermined thickness with flexibility so as to seal the puncture mark of the syringe 41 in order to prevent contamination of bacteria etc. into the liquid storage container 43. Les.
- the supply / discharge unit 500 includes a discharge pump 61 for discharging the cultured cells and used chemicals in the culture container 1, and the culture container 1, the cell collection bags 11, 13, 15 and the waste liquid container 65.
- Discharge tubes 53, 55, 57, 59 that form a flow path between them, and pinch valves 47, 49, 51, 63 provided in the discharge flow path are provided.
- an electromagnetically driven on / off valve that can crush a flexible tube and close the flow path is used as the pinch valve.
- a so-called ironing pump is used in which a flexible tube is attached to a plurality of rollers arranged in a cylindrical shape, and a plurality of rollers are rotated to push out fluid in the tube.
- the environmental protection unit 600 is not shown in the figure with a heater 31 provided in a part of a liquid feeding tube 29 for flowing a chemical from a chemical bag 19, 21 containing a release agent and a culture medium to the culture vessel 1. Consists of a heater, a temperature sensor, a carbon dioxide (CO) sensor, and the like provided in the incubator 3. Incubator 3 is also connected to a CO supply pipe, which is connected to a CO cylinder. The heater 31 warms up in the process of supplying the release agent and culture medium to the culture vessel 1. A heater and a temperature sensor provided in the incubator 3 maintain the temperature in the culture vessel 1 at a predetermined temperature. The CO sensor detects the CO concentration inside the incubator 3.
- a heater 31 provided in a part of a liquid feeding tube 29 for flowing a chemical from a chemical bag 19, 21 containing a release agent and a culture medium to the culture vessel 1.
- the observation unit 700 is installed outside the observation window of the incubator 3, and faces the microscope 1 with the microscope 89 for observing the cell culture state in the culture container 1 and the culture container 1 interposed therebetween. And an illumination light source (not shown) and a microscope moving mechanism (not shown) for moving the microscope 89 two-dimensionally in a plane parallel to the bottom surface of the culture vessel 1.
- the microscope 89 includes a camera that can output captured image information as an electrical signal, for example, a CCD camera.
- the microscope movement mechanism is a mechanism that can move the microscope to any position by cross-locating the movement mechanism that combines the power of the motor and linear motion guide mechanism and linking each motor individually or in conjunction. Good.
- the central processing unit 800 controls the recovery unit 400, the supply / discharge unit 500, the environmental conservation unit 600, and the observation unit 700 according to the culture conditions input from the operation unit 900 described later.
- the CPU 800 includes a ROM, and software that controls the operation of the device described later is stored in the ROM.
- the operation unit 900 includes an operation device for inputting the operation (cultivation) conditions of the automatic culture apparatus, and a monitor that displays the operation conditions input by the operation device force and the image captured by the microscope 89. Yes. Note that pumps, valves, motors, heaters and other actuators incorporated in the automatic culture apparatus described above are not driven by the drive circuit.
- the cross-sectional shape of the culture vessel 1 is not particularly limited, in the present embodiment, it is a circular petri dish, and a flange is formed in the upper opening thereof. Using the plane of the flange, the lid 67 is fixed by welding or the like, and the culture vessel 1 is sealed. Then, nozzles 69, 71, 73 are inserted into the side surface of the culture vessel 1, a liquid feeding tube 29 is provided in the nozzle 69, a discharge tube 59 is provided in the nozzle 71, and a gas exchange tube 75 is provided in the nozzle 73. Is connected.
- FIG. 5 is a diagram showing the connection state between the nozzle 69 and the liquid feeding tube 29 in more detail.
- the tip of the nozzle 69 connected to the liquid feeding tube 29 is positioned in the liquid layer in the culture vessel 1 (the liquid level position during culture) or in the air layer.
- the tip of the nozzle 71 connected to the discharge tube 59 is required to leave a part (small amount) of cultured cells in the culture vessel 1 for the next culture.
- the tip of the nozzle 73 connected to the gas exchange tube 75 serves as a supply / exhaust port for exchanging the gas in the culture vessel 1 and the gas in the incubator 3, so Is set to a higher position.
- the operator attaches the cell collection bag 11, 13, 15 to the collection unit 400 of the automatic culture apparatus, and sterilizes the inside of the automatic culture apparatus by emitting X-rays or ⁇ -rays.
- the aseptic condition of the cell collection bags 11, 13, 15 may be ensured by irradiating with radiation between the completion of the manufacturing of the snag and the packaging.
- the operator attaches the chemical bags 5, 7, and 9 storing the cleaning solution, the release agent, and the medium to the chemical supply unit 200.
- the operator also injects the cell solution in which the cells and the medium are suspended into the liquid reservoir 43 using the syringe 41.
- the operator turns on the automatic culture apparatus and inputs a culture start command from the operation unit 900.
- the cell culture is executed by the CPU 800 controlling each unit.
- the CPU 800 When a culture start command is input, the CPU 800 first executes control for injecting the medium. That is, the CPU 800 outputs a signal for opening the pinch valve 21 and the pinch valve 33 of the supply / discharge unit 500, and then outputs a signal for operating the supply pump 35. As a result, the flow paths of the liquid feeding tubes 27 and 29 are opened, and the supply pump 35 is driven. When the supply pump 35 is driven, the medium stored in the medicine bag 9 is sent toward the culture container 1 through the liquid feeding tubes 27 and 29. At this time, current is supplied to the heater 31 in accordance with a command from the CPU 800, whereby the medium is warmed in the tube.
- the CPU 800 closes the pinch valve 21 while keeping the supply pump 35 driven. Then, the air in the incubator 3 is sucked into the gas tube 38 and the liquid feeding tube 29 through the filter 37. There was no medium left in the feeding tube 29 At this timing, the supply pump 35 is temporarily stopped by the command of the CPU 800, and the pinch valve 33 is closed. By feeding air into the liquid feeding tube 29 after closing the pinch valve 21, the chemical (medium) remaining in the liquid feeding tube 29 is quickly fed into the culture vessel 1. As a result, the liquid feeding tube 29 is prevented from being clogged with chemicals.
- Step 2 Cell fluid injection
- the CPU 800 controls the injection of the cell fluid.
- the cell fluid is stored in the reservoir 43 by the operator.
- the CPU 800 outputs a command to open the pinch valve 40 and a command to drive the supply pump 35, the pinch valve 40 is opened.
- the supply pump 35 is driven.
- the cell liquid is injected from the liquid reservoir 43 through the liquid supply tube 39 into the culture vessel 1.
- the pinch valve 40 is closed and the supply pump 35 is stopped by a command from the CPU 800.
- the CPU 800 controls the concentration of CO inside the incubator 3 and the temperature inside the incubator 3 while culturing the cells for a preset period.
- This preset period can be changed depending on, for example, the type of force cell, which is about 3 days, the cell growth speed, and the like.
- the culture vessel 1 is ventilated.
- the inside of the culture vessel 1 of the present embodiment is almost sealed during cell culture, and it is necessary to ventilate the culture vessel 1 for an appropriate period.
- the CPU 800 outputs a command to open the pinch valve 33 and a command to drive the supply pump 35.
- the pinch valve 33 is opened and the supply pump 35 is driven, the air in the incubator 3 sucked through the filter 37 enters the culture vessel 1 through the gas tube 3 8 and the liquid feeding tube 29 (arrow A
- the air in the culture vessel 1 is discharged into the incubator 3 (in the direction of arrow B) through the gas exchange tube 75 and the filter 77.
- the air feeding is performed once.
- the air feeding may be continuously performed any number of times except when the medium is changed and the cells are recovered as described later.
- the air in the culture vessel 1 is exchanged by supplying the air in the incubator 3 from the filter 77 into the culture vessel 1 (in the direction of arrow C), and the air in the culture vessel 1 from the filter 37 to the incubator. It may be discharged into 3 (in the direction of arrow D).
- the medium is changed after a predetermined period.
- Medium replacement is performed periodically to replenish nutrients by draining the medium in culture vessel 1 to eliminate cell metabolites that elute into the medium and injecting new medium into culture vessel 1.
- the operations from Step 3 (S3) to Step 5 (S5) in Fig. 6 are performed every 3 to 7 days, but this period is preset or depends on the growth state of the cells. Can be changed arbitrarily.
- the CPU 800 outputs a command to open the pinch valve 63 and outputs a command to drive the discharge pump 61.
- the pinch valve 63 is opened, the discharge pump 61 is driven, and the medium containing the metabolite of the cell is discharged from the culture container 1 to the waste liquid container 65 through the discharge tubes 59 and 58.
- the pinch valve 63 is closed and the discharge pump 61 is stopped.
- the CPU 800 In order to supply the medium, the CPU 800 outputs a command to open the pinch valves 21 and 33 and outputs a command to drive the supply pump 35. As a result, the medium in the drug bag 9 is fed through the liquid feeding tubes 27 and 29, heated by the heater 31, and injected into the culture container 1 by a predetermined amount.
- the CPU 800 determines whether or not a predetermined number of medium exchanges has been reached. If the number of medium exchanges has not reached the set number of times, the process returns to step 4 (S4), the air feed in step 5 (S5), and the medium exchange in step 6 (S6) are repeated.
- step 7 When the medium exchange has reached the set number of times, the last air feed in step 7 (S4) is performed in the same manner as in step 4 (S4). During the cell culture period between step 3 (S3) and step 7 (S7), the control of CO concentration and temperature in incubator 3 is
- the observation unit 700 is appropriately operated by the operator, whereby the culture state in the culture vessel 1 is imaged, and the captured image is displayed on the monitor. The operator observes the image displayed on the monitor to advance the culture. Check the row status.
- Step 8 Determination of the number of cell recovery
- the step of collecting cultured cells is performed.
- the culture cell collection step first, a determination is made with respect to the set number of cell collections to be performed. In this embodiment, the apparatus is set so that the cells are collected three times.
- Step 8 (S8) if it is determined that the cultured cell is recovered for the third time, the next process proceeds to the final cell recovery process in Step 13 (S13). If the cultured cells are collected for the first or second time, the next process proceeds to step 9 (S9).
- step 8 a determination is made as to whether or not the cell recovery power has been reached. If the determination result is not the second time, that is, if it is determined to be the first time, the next step proceeds to the cell recovery step of step 10 (S10), and if it is determined that the determination result is the first time, The next step proceeds to the cell recovery process of step ll (Sll).
- the culture cell is washed by performing the discharge process of the medium in the culture vessel 1, the injection process of the washing liquid stored in the chemical bag 5, and the subsequent discharge process. Thereafter, the step of injecting the release agent stored in the chemical bag 7 into the culture container 1 is performed.
- a stripping agent is injected into the culture vessel 1 and a predetermined time elapses, the culture cells are detached from the culture vessel 1.
- the recovery process of the cultured cells detached from the bottom surface of the culture vessel 1 to the cell recovery bag 11 is executed.
- the CPU 800 first issues a command to open the pinch valve 63 and a command to drive the discharge pump 61 in the same manner as the medium discharge described in Step 5 (S5) for discharging the medium. Output. As a result, the medium in the culture vessel 1 is discharged. When the discharge of the medium is completed, the pinch valve 63 is closed and the discharge pump 61 is stopped according to the command from the CPU 800. Subsequently, the CPU 800 outputs a command for opening the pinch valves 17 and 33 and a command for driving the supply pump 35 in order to inject the washing solution into the culture vessel 1.
- the pinch valves 17 and 33 are opened, the supply pump 35 is driven, and the washing solution stored in the medicine bag 5 is injected into the culture vessel 1.
- the supply pump 35 is stopped and the pinch valves 17 and 33 are closed.
- the washing solution is sent to the waste container 65 in the same manner as the medium discharge described in Step 5.
- the CPU 800 outputs a command to open the pinch valves 19, 33 and a command to drive the supply pump 35 in order to inject the release agent into the culture vessel 1. To do.
- the pinch valves 19 and 33 are opened, the supply pump 35 is driven, and the release agent stored in the chemical bag 7 is injected into the culture vessel 1.
- the supply pump 35 is stopped and the pinch valves 19 and 33 are closed.
- the release agent floats on the cultured cells attached to the bottom surface of the culture vessel 1.
- the CPU 800 injects the medium into the culture container 1.
- the medium is injected here to weaken the effect of the release agent that adversely affects the cells.
- the CPU 800 outputs a command to open the pinch valves 21 and 33 and a command to drive the supply pump 35.
- the pinch valves 21 and 33 are opened, the supply pump 35 is driven, and the culture medium is injected into the culture container 1 from the drug bag 9.
- the supply pump 35 is stopped and the pinch valves 21 and 33 are closed.
- the CPU 800 drives the discharge pump 61 in response to a command to open the pinch valve immediately (here, since it is the first collection, the pinch valve 47 is opened). Outputs a command. As a result, the cultured cells in the culture vessel 1 are collected in the cell collection bag 11 through the discharge tubes 59 and 53. When the cultured cells are not sucked into the discharge tubes 59 and 53, the CPU 800 closes the pinch valve 47 and stops the discharge pump 61.
- the CPU 800 outputs a command for thermocompression bonding of the tube portion of the cell collection bag 11 to the heat sealing mechanism 66.
- the tube portion of the cell collection bag 11 is heat-sealed.
- the cell collection bag 11 is detached from the apparatus by the operator. Bag with cultured cells separated from the device Are stored in a refrigerator.
- the culture vessel is not recovered without collecting a part of the cultured cells. It remains in 1.
- the gist of the present invention is to obtain a large number of cultured cells by repeatedly culturing the cultured cells remaining in or remaining in the culture vessel 1.
- step 10 the CPU 800 repeats steps 3 (S3) to 9 (S9) for the cells remaining in the culture vessel 1. Execute. As a result, the cells left in the culture vessel 1 are cultured. In step 8 (S8) and step 9 (S9), the CPU 800 determines how many times this cell recovery is performed. This is the second decision.
- step 11 If it is determined in step 9 (S9) that the cell recovery power is the second time, in step 11 (Sll), the second cell recovery is performed in the same order as the cell recovery in step 10 (S10). However, in the second cell recovery in step ll (Sll), the cells discharged from the culture vessel 1 are directed to the cell recovery bag 13 according to the instruction of the CPU 800 in accordance with the determination result in step 9 (S9).
- the recovered heat sealing mechanism 66 is different from step 10 (S10) in that the tube portion of the cell recovery bag 13 is thermocompression bonded.
- step ll When the second cell recovery in step ll (Sll) is completed, CPU 800 repeats again steps 3 (S3) to 9 (S9) for the cells remaining in culture vessel 1. As a result, the cells left in the culture vessel 1 are cultured. In step 8 (S8) and step 9 (S9), the CPU 800 determines how many times this cell recovery is performed. This is the third decision.
- step 12 (S12) When it is determined in step 9 (S9) that the cell recovery power is the third time, in step 12 (S12), the third cell recovery is performed in the same order as the cell recovery in step 10 (S10). However, in the third cell recovery in step 12 (S12), step 9 (S9) Corresponding to the judgment result, the cells discharged from the culture vessel 1 are collected into the cell collection bag 15 according to the instruction of the CPU 800, and the heat sealing mechanism 62 is a step where the tube portion of the cell collection bag 15 is thermocompression bonded. Different from 10 (S10).
- the cell collection bags 11, 13, and 15 containing the collected cultured cells are transported to a clinical site where the cultured cells are used for tissue regeneration of the human body. Be done
- the present embodiment when recovering cells cultured in the culture container, a part of the cells is left in the culture container, and the cells remaining in the culture container are cultured again. Thus, cells can be grown in large quantities. In this embodiment, since the cells remaining in the culture container are cultured again, a small-sized culture container can be used. Compared with the case where the cultured cells once cultured in a culture vessel are transferred to a plurality of different culture vessels and the culture is continued as in conventional subculture, the apparatus can be downsized. Furthermore, according to the present embodiment, the tissue cells can be extracted from the living body only once, so that the damage to the living body can be reduced.
- the cultured cells are automatically collected into the cell collection bag, and the cell collection bag is removed by heat sealing to shut off the inside of the cell collection bag and the external environment. In addition, contamination of cells and bacteria during cell recovery can be prevented.
- the air in the culture container when a medicine is supplied into the culture container, the air in the culture container according to the amount of the medicine supplied from the nozzle where the air in the culture container communicates with the incubator. Can be poured into the culture vessel smoothly.
- the liquid in the culture vessel when discharging liquid such as chemicals in the culture vessel, air is supplied into the culture vessel according to the discharge amount of the liquid containing chemicals and cells discharged from the nozzle that communicates with the incubator. Therefore, the liquid in the culture vessel can be extracted smoothly.
- air is supplied to and discharged from the culture vessel through the filter, so that a clean culture environment is provided and maintained.
- the number of repetitions of cell culture and recovery may be arbitrarily set as long as it is at least twice depending on the amount of cells required. In that case, change the number of cell collection bags and pinch valves provided in the collection unit according to the number of times the cultured cells are collected. If it is possible to provide a device that prevents contamination of cells and bacteria during cell recovery, it is not necessary to load multiple cell recovery bags into the automatic culture device in advance. You can use the loading method.
- the culture apparatus of the present embodiment can culture cells almost continuously, and can collect cells at predetermined time intervals. Therefore, when performing regenerative treatment by dividing a patient's organ or tissue into multiple times, for example, when performing leukemia treatment that uses mesenchymal stem cells as an auxiliary, the mesenchymal stem cells are spread several times at predetermined intervals. Can be supplied.
- the cell collection bags 11, 13, 15 and the waste liquid container 65 are connected to the discharge pipe of one discharge pump 61 via pinch valves 47, 49, 51, 63, respectively. Then, waste liquid and collected cells may remain in the pipeline. If these waste liquids, dead cells, and cellular metabolites remain in the collection system, contamination will occur during the next repeated collection of cultured cells. It is necessary to prevent the occurrence of such contamination.
- FIG. 7 shows the configuration of the automatic culture apparatus of the second embodiment that can prevent the occurrence of such contamination.
- the automatic culture apparatus of the present embodiment is replaced with a discharge system nozzle 71 provided in the culture container 1 of the first embodiment in comparison with the first embodiment.
- nozzles 101, 103, 105, 107 corresponding to the number of cell collection bags 11, 13, 15 and waste liquid containers 65 (four in total) are provided.
- the discharge tubes 119, 121, 123, 125 are connected to the nozzles 101, 103, 105, 107, respectively.
- Cell discharge bags 11, 13, and 15 are connected to these discharge tubes 119, 121, and 123, respectively, and a waste liquid container 65 is connected to the discharge tube 125.
- pinch valves 47, 49, 51, 63 and discharge pumps 111, 113, 115, 117 are connected as shown in the figure. Yes.
- the pinch valves 47, 49, 51, and 63 are attached to the suction side of the discharge pump. They can also be attached to the discharge side of the discharge pump.
- the discharge pumps 111, 113, 115, 117 and the pinch valves 47, 49, 51, 63 are operated by a command from the CPU 800.
- the automatic culturing apparatus of the present embodiment configured as described above differs from the automatic culturing apparatus of the first embodiment in the operation when the liquid in the culture vessel 1 is discharged. That is, when the waste liquid in the culture vessel 1 is discharged, the pinch valve 63 is opened and the discharge pump 117 is driven.
- the pinch valve 47 is opened and the discharge pump 111 is driven at the first cell collection time.
- the pinch valve 49 is opened and the discharge pump 113 is driven
- the pinch valve 51 is opened and the discharge pump 115 is driven.
- the discharge tubes 119, 121, 123, and 125 are provided independently, the cells collected after the second time are used. Waste liquid and cellular metabolites will not be mixed. Accordingly, clean cultured cells can be obtained.
- the second embodiment described above is an embodiment in which both the waste liquid left in the pipeline at the previous recovery and the metabolite of the cell are prevented from being mixed into the recovered cells after the second time. It can be modified so that only the waste liquid does not enter the collected cells after the first round.
- the embodiment is possible by referring to the second embodiment and providing the waste liquid recovery system independently of the first embodiment.
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Abstract
Description
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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US12/160,613 US20100317102A1 (en) | 2006-01-17 | 2006-11-14 | Cell Culture Method and Automatic Culture System Using the Method |
JP2007554830A JP5294296B2 (ja) | 2006-01-17 | 2006-12-14 | 細胞培養方法及びその方法を用いた自動培養装置 |
KR1020087017352A KR101419952B1 (ko) | 2006-01-17 | 2006-12-14 | 세포 배양 방법 및 그 방법을 이용한 자동 배양 장치 |
EP06834657A EP1978089A4 (en) | 2006-01-17 | 2006-12-14 | CELL CULTURE METHOD AND AUTOMATIC CULTURE SYSTEM USING THE SAME |
CN2006800511180A CN101370928B (zh) | 2006-01-17 | 2006-12-14 | 细胞培养方法以及使用该方法的自动培养装置 |
US14/015,574 US20130344597A1 (en) | 2006-01-17 | 2013-08-30 | Cell culture method and automatic culture system using the method |
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JP2006008521 | 2006-01-17 | ||
JP2006-008521 | 2006-01-17 |
Related Child Applications (1)
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US14/015,574 Division US20130344597A1 (en) | 2006-01-17 | 2013-08-30 | Cell culture method and automatic culture system using the method |
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WO2007083465A1 true WO2007083465A1 (ja) | 2007-07-26 |
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ID=38287421
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PCT/JP2006/324903 WO2007083465A1 (ja) | 2006-01-17 | 2006-12-14 | 細胞培養方法及びその方法を用いた自動培養装置 |
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US (2) | US20100317102A1 (ja) |
EP (1) | EP1978089A4 (ja) |
JP (1) | JP5294296B2 (ja) |
KR (1) | KR101419952B1 (ja) |
CN (1) | CN101370928B (ja) |
WO (1) | WO2007083465A1 (ja) |
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Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009065892A (ja) * | 2007-09-13 | 2009-04-02 | Nikon Corp | 細胞培養器具及びこれを備えた顕微鏡装置 |
EP2163612A1 (de) * | 2008-09-13 | 2010-03-17 | Astrium GmbH | Kultiviereinheit |
JP2013516974A (ja) * | 2010-01-13 | 2013-05-16 | イー・エム・デイー・ミリポア・コーポレイシヨン | 生体液用回路 |
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JP2020124198A (ja) * | 2012-05-18 | 2020-08-20 | ウィルソン ウォルフ マニュファクチャリング コーポレイションWilson Wolf Manufacturing Corporation | 養子細胞療法のための改良された細胞培養法 |
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JP2015136330A (ja) * | 2014-01-22 | 2015-07-30 | 株式会社Ihi | 細胞培養装置および細胞培養方法 |
JP2017192403A (ja) * | 2015-03-09 | 2017-10-26 | イー・エム・デイー・ミリポア・コーポレイシヨン | 微小流体システムにおける空気装置用コネクタ |
US10737266B2 (en) | 2015-03-09 | 2020-08-11 | Emd Millipore Corporation | Connectors for pneumatic devices in microfluidic systems |
JP2015109877A (ja) * | 2015-03-25 | 2015-06-18 | 株式会社日立製作所 | 自動培養装置 |
JP2019000059A (ja) * | 2017-06-16 | 2019-01-10 | 株式会社日立製作所 | 送液装置およびそれを用いた細胞培養装置 |
US10947490B2 (en) | 2017-06-16 | 2021-03-16 | Hitachi, Ltd. | Liquid delivery device and cell culture device using the same |
CN107739713A (zh) * | 2017-10-13 | 2018-02-27 | 中国科学院上海技术物理研究所 | 一种适用于空间细胞自动培养的换液系统 |
WO2022202734A1 (ja) * | 2021-03-26 | 2022-09-29 | テルモ株式会社 | 細胞培養システム |
Also Published As
Publication number | Publication date |
---|---|
US20100317102A1 (en) | 2010-12-16 |
US20130344597A1 (en) | 2013-12-26 |
KR20080087003A (ko) | 2008-09-29 |
KR101419952B1 (ko) | 2014-07-16 |
JP5294296B2 (ja) | 2013-09-18 |
EP1978089A1 (en) | 2008-10-08 |
CN101370928A (zh) | 2009-02-18 |
EP1978089A4 (en) | 2012-07-11 |
JPWO2007083465A1 (ja) | 2009-06-11 |
CN101370928B (zh) | 2013-03-20 |
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