WO2003104387A1 - 組織培養用装置 - Google Patents
組織培養用装置 Download PDFInfo
- Publication number
- WO2003104387A1 WO2003104387A1 PCT/JP2003/006994 JP0306994W WO03104387A1 WO 2003104387 A1 WO2003104387 A1 WO 2003104387A1 JP 0306994 W JP0306994 W JP 0306994W WO 03104387 A1 WO03104387 A1 WO 03104387A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tissue culture
- humidity
- water
- humidifying
- culture device
- Prior art date
Links
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
- 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
- C12M41/32—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of substances in solution
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/04—Filters; Permeable or porous membranes or plates, e.g. dialysis
-
- 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
- C12M37/00—Means for sterilizing, maintaining sterile conditions or avoiding chemical or biological contamination
- C12M37/02—Filters
Definitions
- the present invention relates to an apparatus for tissue culture in which microbial contamination is further controlled, and more particularly to an improvement in humidification means and air circulation means. More specifically, the present invention relates to a tissue culture device ((CO 2 incubator)) that incorporates means for maintaining the humidity in a tissue culture device at supersaturation and means for controlling bacterial permeation of inflow air.
- a tissue culture device ((CO 2 incubator)) that incorporates means for maintaining the humidity in a tissue culture device at supersaturation and means for controlling bacterial permeation of inflow air.
- Tissue culture of human cells, mammalian cells, and the like has been actively performed using a tissue culture device (CO 2 incubator).
- Tissue culture is a method of separating human animal tissues, organs, and lymph cells, and growing the cells in a culture vessel such as a flask or a petri dish. Normally, culture flasks and dishes contain human-derived cells, medium medium (medium), bovine serum, etc. to grow the cells.
- the conditions for cultivation, temperature 37 ° C, C0 2 concentration of 5% humidity supersaturation is common.
- a tissue culture device (CO 2 incubator) is a device that has been developed to maintain the culture conditions.
- temperature is a growth condition that requires mammalian cells to be physiologically necessary.
- the lid of the culture flasks so that without closing in order to supply the C0 2 gas in the culture apparatus in culture flask is out of air, it is necessary to loosen. At this time, evaporation of the medium from the culture flask changes the salt concentration of the medium, which has a significant effect on the cell culture environment. To prevent this drying, it is necessary to humidify the inside of the tissue culture device (CO 2 incubator).
- tissue culture apparatus C0 2 incubator
- water in the pat is usually contaminated with mold bacteria because the tissue culture temperature condition is 37 ° C.
- Tissue culture flasks contain a large amount of nutrients necessary for cell growth, and there is a risk that these bacteria will enter the culture flask, causing serious contamination and killing animal cells.
- tissue culture apparatus C0 2 incubator
- a state of the culture flasks bacteria is required evaporation bat sterility that breed is living.
- tissue culture apparatus to (C0 2 incubator), the air circulation is also required, it is a great burden in cost-supplying This special device. Therefore, means for controlling bacterial permeation in the inflow of air PC gurus 94
- An object of the present invention is to provide a simple means for easily preventing microbial contamination due to humidification when humidifying an atmosphere in a culture device during tissue culture, and / or a method for preventing bacteria from entering air into the culture device. It is intended to provide a simple means of transmission control. (Means to solve)
- the present invention is a.
- a tissue culture device comprising at least one of the following:
- a means for supplying humidity to the tissue culture device which is capable of spontaneous evaporation of water at a temperature of about 37 ° C in order to maintain the humidity inside the tissue culture device in a supersaturated state.
- a humidifying device for tissue culture that can replenish water in the humidity supply means by separating the atmosphere in the humidity supply means from the water in the humidity supply means with a membrane that controls bacteria permeation.
- tissue culture device according to the above item 1, wherein the membrane for controlling bacterial permeation has a diameter of 0.45 ⁇ m or less.
- tissue culture device according to any one of the above items 1 to 3, wherein the tissue culture humidifier and the tissue culture device are separable.
- the humidifying device for tissue culture and the tissue culture device are integrated into PC orchid back 994
- Fig. 1 shows the outline of the humidifier.
- Figure 2 shows a CO 2 incubator equipped with a sterilizing enzyme filter (labeled as filter in the figure) on which the lytic enzyme is immobilized.
- Figure 3 shows a humidity recovery experiment using a humidifying container.
- One means of the present invention is a method for humidifying the humidity in a tissue culture device (CO 2 incubator) without using an evaporating bat.
- a tissue culture device CO 2 incubator
- By providing a membrane it is possible to prevent contamination when humidifying the inside of the container, and at the same time it is possible to prevent bacterial and fungal infections in the culture flask.
- tissue culture device that carries a humidity supply unit.
- Tissue culture covers a wide range of human cells, mammalian cells, and the like, and is not particularly limited.
- the tissue culture device a so-called C0 2 incubator - means, a device for culturing tissue 'cell under an atmosphere of CO 2.
- tissue and cells are cultured on a medium using a culture flask.
- the humidity in the culture device is maintained in a supersaturated state.
- the temperature inside the culture vessel is generally maintained at about 37 ° C. chorusC
- the atmosphere for tissue culture (the atmosphere in the culture flask and the culture apparatus) and the water in the humidity supply means of the present invention are separated by a membrane capable of controlling bacterial permeation.
- water can be replenished in the humidity supply means, and can be gradually added according to evaporation.
- the membrane having bacterial permeation control has a diameter that does not allow the passage of microorganisms such as bacteria and vices even if they are contaminated in water, humidity supply means, or a humidifier.
- the passage of the evaporated water means a membrane that enables the passage.
- the diameter of the membrane is 0.45, preferably 0.2 micron or less, which is the diameter of a general sterilization membrane. This caliber can be changed at any time depending on the efficiency of water supply and the efficiency of sterilization.
- the means of the present invention is preferable because the humidifying device for tissue culture and the tissue culture device are easily separable, easy to handle, and inexpensive to manufacture. Separable means that the humidifying device according to the present invention is set in the tissue culture device in place of the hydration vat as before. Thus, a tissue culture method in which the humidifying device for tissue culture of the present invention is set in the tissue culture device becomes possible.
- the humidifying device for tissue culture and the tissue culture device may be integrated.
- a humidifier may be provided in advance in the tissue culture device, and an embodiment in which additional water can be supplied from outside the tissue culture device is extremely preferable.
- a tissue culture method using an apparatus in which a tissue culture humidifier and a tissue culture apparatus are integrated can be realized.
- a bacterium permeation-controlling membrane on which a lytic enzyme is immobilized is provided at an air suction port and an exhaust port of the apparatus.
- Bacterial permeability control membranes have a diameter that allows microbes such as bacteria and mold to pass through them, but does not allow air to pass through. means.
- the diameter of the membrane is preferably 0.45, preferably 0.2 microns or less, which is the diameter of a general sterilization membrane.
- the lytic enzyme is designed, selected, and immobilized on microorganisms that normally exist in the air.
- the immobilization means is performed by a general silane coupling agent that links inorganic and organic substances, but is not limited to this. Sterilization with commercially available bacteriolytic enzyme immobilized ⁇ Kondo Chemical Industry Co., Ltd. is available. If such a membrane is used, after the microorganisms are captured by the filter, the captured microorganisms are lysed by the action of an enzyme, so that contamination in the apparatus can be more reliably and simply prevented.
- FIG. 1 shows an example of the humidification container of the present invention.
- sterile water for humidification into a humidification container that has been sterilized by gamma ray or autoclaving in advance.
- the sterilized water in the humidifying container is kept aseptic without contamination from the outside by a membrane filter attached to the humidifying container.
- sterile water humidified container passes through the membrane filter become vapor diffuses into the C0 2 incubator, humidifying the culture device.
- Figure 3 shows a humidity recovery experiment using this device. In about 10 minutes, it was confirmed that the humidity, which dropped to about 30%, returned to a constant value and was sufficiently practical.
- PC leakage 994 shows an example of the humidification container of the present invention.
- the present invention can provide a means capable of humidifying treatment and air circulation in a state of controlling microbial contamination extremely efficiently, and is extremely useful in practical use of tissue culture.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Zoology (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Biomedical Technology (AREA)
- Genetics & Genomics (AREA)
- Sustainable Development (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004511448A JPWO2003104387A1 (ja) | 2002-06-06 | 2003-06-03 | 組織培養用装置 |
AU2003241935A AU2003241935A1 (en) | 2002-06-06 | 2003-06-03 | Tissue culture apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-165225 | 2002-06-06 | ||
JP2002165225 | 2002-06-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003104387A1 true WO2003104387A1 (ja) | 2003-12-18 |
Family
ID=29727585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/006994 WO2003104387A1 (ja) | 2002-06-06 | 2003-06-03 | 組織培養用装置 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPWO2003104387A1 (ja) |
AU (1) | AU2003241935A1 (ja) |
WO (1) | WO2003104387A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016010360A (ja) * | 2014-06-30 | 2016-01-21 | 澁谷工業株式会社 | 無菌空間用加湿装置 |
JP2017123786A (ja) * | 2016-01-12 | 2017-07-20 | ヤマト科学株式会社 | 加湿用バッグおよび加湿用バッグを備えるインキュベータ |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02135087A (ja) * | 1988-11-14 | 1990-05-23 | Akira Kijihana | 組織細胞培養装置 |
JPH0767923A (ja) * | 1993-09-02 | 1995-03-14 | Mitsubishi Rayon Co Ltd | 保育器 |
JPH1156930A (ja) * | 1997-08-11 | 1999-03-02 | Koshin Kogyo:Kk | 保育器 |
JPH11290059A (ja) * | 1998-04-06 | 1999-10-26 | Masashi Funayama | 炭酸ガス培養器 |
-
2003
- 2003-06-03 JP JP2004511448A patent/JPWO2003104387A1/ja active Pending
- 2003-06-03 WO PCT/JP2003/006994 patent/WO2003104387A1/ja active Application Filing
- 2003-06-03 AU AU2003241935A patent/AU2003241935A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02135087A (ja) * | 1988-11-14 | 1990-05-23 | Akira Kijihana | 組織細胞培養装置 |
JPH0767923A (ja) * | 1993-09-02 | 1995-03-14 | Mitsubishi Rayon Co Ltd | 保育器 |
JPH1156930A (ja) * | 1997-08-11 | 1999-03-02 | Koshin Kogyo:Kk | 保育器 |
JPH11290059A (ja) * | 1998-04-06 | 1999-10-26 | Masashi Funayama | 炭酸ガス培養器 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016010360A (ja) * | 2014-06-30 | 2016-01-21 | 澁谷工業株式会社 | 無菌空間用加湿装置 |
JP2017123786A (ja) * | 2016-01-12 | 2017-07-20 | ヤマト科学株式会社 | 加湿用バッグおよび加湿用バッグを備えるインキュベータ |
Also Published As
Publication number | Publication date |
---|---|
AU2003241935A1 (en) | 2003-12-22 |
JPWO2003104387A1 (ja) | 2005-10-06 |
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