WO2007116771A1 - 細胞融合用チップ - Google Patents
細胞融合用チップ Download PDFInfo
- Publication number
- WO2007116771A1 WO2007116771A1 PCT/JP2007/056502 JP2007056502W WO2007116771A1 WO 2007116771 A1 WO2007116771 A1 WO 2007116771A1 JP 2007056502 W JP2007056502 W JP 2007056502W WO 2007116771 A1 WO2007116771 A1 WO 2007116771A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chamber
- fusion
- cell fusion
- cells
- cell
- Prior art date
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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
- C12M35/00—Means for application of stress for stimulating the growth of microorganisms or the generation of fermentation or metabolic products; Means for electroporation or cell fusion
- C12M35/02—Electrical or electromagnetic means, e.g. for electroporation or for cell fusion
Definitions
- the present invention relates to a cell fusion chip, and more particularly to a cell fusion chip capable of efficiently performing a cell fusion process on a single chip.
- cell fusion is performed by placing a suspension containing a plurality of cells in a container, placing the container on a microscope stage, and observing the cells in the container with a microscope.
- Patent Document 1 See Patent Document 1 below.
- Patent Document 1 Japanese Patent Laid-Open No. 4 349889
- the present invention has been made to solve the above-described problems of the prior art, and is capable of performing cell fusion processing on a single chip, has excellent work efficiency,
- the present invention provides a cell fusion chip that requires no skill in supplying and taking out work, and that there is no risk of cells being contaminated during the work.
- the invention according to claim 1 includes an isolation chamber that accommodates cells in an isolated state before fusion processing, a fusion chamber that fuses cells supplied from the isolation chamber, and a fusion chamber.
- a culture chamber for culturing the fused cells a first passage connecting the isolation chamber and the fusion chamber; and a second passage connecting the fusion chamber and the culture chamber.
- the present invention relates to a cell fusion chip characterized in that the passage is provided on one chip.
- the invention according to claim 2 has a connection port to which a microsyringe pump is connected, and a third passage connected to the connection port, and at least one of the isolation chamber, the fusion chamber, and the culture chamber.
- the third passage connected to the fusion chamber includes: one passage connected to one connection port; and another passage connected to another connection port.
- the invention according to claim 4 is characterized in that the width of the fusion chamber is wider than the width of the first to third passages. Concerning chips.
- the invention according to claim 5 is characterized in that the cell fusion according to any one of claims 1 to 4, wherein the portion including the culture chamber is formed so as to be capable of separating a force including another chamber. For chips.
- the invention according to claim 6 relates to the cell fusion chip according to any one of claims 1 to 5, wherein the fusion chamber has a counter electrode.
- the invention according to claim 7 relates to the cell fusion chip according to any one of claims 1 to 6, wherein a wall having a recess is provided in the fusion chamber.
- the invention according to claim 8 is the cell fusion according to any one of claims 1 to 7, wherein a wall formed in a lattice shape in a plan view is provided in the fusion chamber. Concerning the combined chip.
- the invention according to claim 9 is the cell fusion according to claim 7, wherein the wall is a pair of wall forces arranged so that the recesses face each other inside the counter electrode. Related to the chip.
- the invention according to claim 10 relates to the cell fusion chip according to claim 8, wherein the wall is formed inward of the counter electrode.
- the fused cells can be cultured on a single chip in separate chambers, so that the cells are contaminated during operations that do not require skill in supplying and removing cells. Therefore, the work efficiency of cell fusion can be improved.
- the part including the culture chamber is separated from the part including the other chambers.
- the separated part can be used independently as a culture chamber.
- the fusion chamber since the fusion chamber has the counter electrodes, an alternating voltage is applied between the counter electrodes, whereby the cells can be easily aligned to form a pearl chain. And the processing efficiency of cell fusion can be increased.
- the wall having the depression is provided in the fusion chamber, the cells can be strongly pressed by fitting the cells into the depression. Adhesion between cells is enhanced, and the cell fusion rate can be improved.
- the wall formed in a lattice shape in a plan view is provided in the fusion chamber, so that the cell can be fitted into the lattice to restrict the movement. This facilitates the cell fusion process.
- selective cell fusion can be achieved by controlling the number of cells entering the lattice with laser tweezers.
- the cells are distinguished by a lattice, so that they can be easily obtained.
- the wall force is a pair of wall forces arranged so that the recesses face each other inside the counter electrode, whereby an AC voltage is applied between the counter electrodes. The movement of the formed pearl chain is fixed by the depression, and the aim is easily determined when cell fusion is performed with a UV laser.
- FIG. 1 is a plan view of a cell fusion chip according to the present invention.
- the cell fusion chip (1) according to the present invention has a plurality of chambers which are also formed with a flat plate force that also has an insulating material (for example, synthetic resin such as PP, PE, PET, etc.) and are recessed in the upper surface. Is formed.
- an insulating material for example, synthetic resin such as PP, PE, PET, etc.
- the chamber consists of three chambers: an isolation chamber (2), a fusion chamber (3), and a culture chamber (4). These three types of chambers are formed on a single chip.
- the isolation chamber (2) is a chamber for storing a suspension containing the cells in an isolated state before the fusion process.
- the number of isolation chambers (2) may be only one when the same type of cells are fused, but when different types of cells are fused, a plurality of chambers are provided so that the different types of cells can be accommodated separately.
- the number is not particularly limited, and may be two as shown in the figure, or three or more.
- the size of each chamber may be the same or different.
- the fusion chamber (3) is an isolation chamber (2) for fusing cells supplied with force.
- a pair of electrodes (7) are attached to the inner wall of the fusion chamber (3) at positions facing each other with a gap therebetween.
- the pair of electrodes (7) are each connected to a power source (not shown), and AC is connected between the opposing electrodes It is configured to be able to apply a voltage.
- the pair of electrodes (7) is such that one end is exposed at the inner wall of the isolation chamber (2) and the other end is exposed outside the chip (1). In order to prevent conduction in parts other than the inside of (2), they are provided so as to be embedded inside the insulating material constituting the cell fusion chip (1).
- the culture chamber (4) is a chamber for accommodating and culturing the cells fused in the fusion chamber (3).
- culture chamber (4) Although only one culture chamber (4) is provided in the illustrated example, two or more culture chambers (4) may be provided so that the culture is performed separately in each culture chamber (4).
- the isolation chamber (2) and the fusion chamber (3) are connected by the first passage (5), and the cells before fusion processing accommodated in the isolation chamber (2) are in the first passage. It is moved to the fusion chamber (3) through (5) and used for the fusion process in the fusion chamber (3).
- the fusion chamber (3) and the culture chamber (4) are connected by the second passage (6), and the cells that have undergone the fusion process in the fusion chamber (3) are connected to the second passage (6). It is moved to the culture chamber (4) through and cultured in the culture chamber (4).
- connection port (8) to which a discharge Z suction port of a microsyringe pump can be connected is formed on the upper surface of the cell fusion chip (1)!
- connection port (8) is connected to the isolation chamber (2), fusion chamber (3) described above via the third passage (9).
- a fusion chamber (3) In the illustrated example, two types of chambers, a fusion chamber (3) and a culture chamber (4), are provided.
- connection port (8) It is connected to the connection port (8) through 3 passages (9)!
- the third passage (9) provided to connect to the fusion chamber (3) is connected to the isolation chamber (2). And the culture chamber (3) side, and are connected to different connection ports (8).
- connection port (8) provided at the end of the third passage (9) extending to the isolation chamber (2) side is
- connection port (8) provided at the end of the third passage (9) extending to the culture chamber (3) side extracts the medium from the fusion chamber (3) using a microsyringe pump. Is provided to do.
- the supply of the medium to the fusion chamber (3) and the extraction of the medium from the fusion chamber (3) can be performed directly using a microsyringe pump without passing through another chamber.
- the third passage (9) provided to connect to the culture chamber (4) extends to the opposite side of the fusion chamber (3).
- connection port (8) provided at the end of the third passage (9) is provided for extracting the culture solution from the culture chamber (4) using a microsyringe pump.
- the third passage (9) extends from the isolation chamber (2), and is connected to the connection port (8) of the microsyringe pump. It is also possible to connect them.
- the width of the isolation chamber (2), the fusion chamber (3), and the culture chamber (4) is the same as the first to third passages (5), (6), (9) described above.
- the width is sufficiently wide (for example, 2 times or more, more preferably 5 times or more).
- the isolation chamber (2) force can also be unintentional flow of cells into the fusion chamber (3) and unintentional cell flow into the fusion chamber (3) force culture chamber (4). Spills can be reliably prevented.
- first passage (5) and the second passage (6), the second passage (6) and the third passage (7), the first passage (5) and the third passage. (7) is preferably arranged so that it is not on the same straight line as shown in FIG.
- the isolation chamber (2) force is also unintentional to the fusion chamber (3) V, the influx of cells, the fusion chamber (3) force and the culture chamber (4).
- the effect of preventing the outflow of cells can be obtained.
- the cell fusion chip (1) according to the present invention includes a part including the culture chamber (4). It is preferable to form the minute part so that the partial force including the other chambers (2) and (3) can also be separated. This is because the part including the culture chamber (4) can be separated from the part including the other chamber (2) (3), so that the separated part can be used independently as a culture chamber. They can do it.
- FIG. 2 is a plan view showing a case where such a configuration is adopted.
- the phantom line (A) is a boundary line that can be separated, and the boundary line (A) By separating the parts, the cell fusion chip (1) is divided into a part including the culture chamber (4) and a part including the other chambers (2) (3).
- the boundary line (A) for separating the cell fusion chip (1) consists of a groove (10) formed in the chip (1) as shown in FIG. 3, for example.
- Fig. 3 (a) shows the case where the groove (10) is formed on the surface of the chip (1)
- (b) shows the case where the groove (10) is formed on the back surface of the chip (1)
- Fig. 3 (c) shows the groove ( The case where 10) is formed on both sides of the chip (1) is shown.
- Each groove (10) is formed with an acute cross section.
- the chip (1) can be easily divided along the groove (10).
- the configuration for separating the cell fusion chip (1) is not limited to the configuration in which the groove (10) is provided.
- the cell fusion chip (1) is preliminarily formed with a two-piece force including a portion including the culture chamber (4) and a portion including the other chamber (2) (3), and the cell fusion process is performed.
- these two pieces are combined by a releasable connecting means such as fitting or pinning to form one chip (1), and after the fusion process is completed, the two pieces are separated again. May be.
- the cell fusion chip (1) according to the present invention having the above constitutional power is mounted and used on an electric stage (12) of a microscope (11) as shown in FIG.
- the microscope (11) is a trap for capturing and manipulating cells.
- Laser light source for cell fusion and cell fusion laser light source for fusing cells together.
- an IR laser such as a YAG laser (wavelength 1060 nm), an Nd: YLF laser (wavelength 1047 nm), a DPSS laser (wavelength 1064 nm) is used.
- a UV laser is used as the laser for cell fusion.
- the microscope (11) may include a third laser light source that outputs an ultrashort pulse laser (picosecond laser or femtosecond laser) in addition to the above two types of laser light sources. Good.
- an ultrashort pulse laser picosecond laser or femtosecond laser
- the ultrashort pulse laser is suitably used as a trapping laser when cell manipulation with high power is required.
- the microscope (11) has an electric stage in addition to the laser manipulator described above.
- a mechanical manipulator such as a micropipette with a thin metal needle or glass tube on top.
- the microscope (11) includes the laser light source and the mechanical manipulator as described above, the microscope accommodates cells contained in the cell fusion chip (1) placed on the electric stage (12). Laser trapping and cell fusion, or mechanical mechanical manipulation can be performed.
- the cell fusion treatment using the cell fusion chip (1) according to the present invention is performed by the following procedure on the electric stage (12) of the microscope (11).
- a suspension containing cells in an isolated state before the fusion process is supplied into the isolation chamber (2) of the cell fusion chip (1).
- the cells in the suspension between the electrodes form a state (pearl chain) arranged parallel to the direction of the electric field. Then, the cells are fused by irradiating with a cell fusion laser.
- the cells having undergone the fusion treatment are passed through the second passage (6) using a manipulator (laser or mechanical) equipped with a microscope (11) or a microsyringe pump. Through to the culture chamber (4).
- a manipulator laser or mechanical
- a microscope (11) or a microsyringe pump Through to the culture chamber (4).
- the cell fusion chip (1) is removed from the electric stage (12) of the microscope (11), and the cells in the culture chamber (4) are removed.
- the separated part can be used independently as a culture chamber. I can do it.
- the cell fusion chip (1) As described above, by using the cell fusion chip (1) according to the present invention, it is possible to accommodate isolated cells and to electrically fuse cells on one chip.
- the fused cells can be cultured.
- the work efficiency of the cell fusion process can be greatly improved without the risk of cells being contaminated during work that does not require skill in supplying and removing cells. .
- the configuration of the fusion chamber (3) can be changed as follows.
- FIG. 5 is a view showing a first modified example of the fusion chamber (3) in the cell fusion chip (1) according to the present invention.
- the configuration other than the fusion chamber (3) is the same as in FIG. 1, and the illustration of the passage is omitted.
- the first modified example is different from that shown in FIG. 1 in that a wall (13) having a recess (14) is provided in the fusion chamber (3), and other configurations are the same.
- the wall (13) having the depression (14) is a pair of wall forces arranged so that the depressions (14) face each other inside the counter electrode (7).
- the number of recesses (14) provided in the wall (13) is not particularly limited, but it is preferable to arrange a large number of recesses (14) side by side as in the illustrated example.
- the shape of the recess (14) is not particularly limited, but if it is a triangular shape in plan view that expands inward as shown in the figure, the cell Is preferable because it can be fitted and fixed well.
- the size of the depression (14) is preferably a width and depth that allow a plurality of cells to enter only one row.
- a plurality of cells are applied by applying an alternating voltage to the laser tweezers and the counter electrode (7).
- the cells (S) are fitted and fixed in the recesses (14), the cells are fused together by applying a UV laser or applying a DC voltage as shown in FIG. 6 (b).
- the cells can be strongly pressed against each other by fitting the cells into the recesses. Therefore, the adhesiveness between cells is improved, and the cell fusion rate can be improved.
- the aim is easily determined when cell fusion is performed with a UV laser or the like.
- FIG. 7 is a view showing a second modification of the fusion chamber (3) in the cell fusion chip (1) according to the present invention.
- the configuration other than the fusion chamber (3) is the same as in FIG. 1, and the illustration of the passage is omitted.
- the fusion chamber of the second modified example is different from that shown in FIG. 1 in that the fusion chamber (3) is provided with a wall (15) formed in a lattice shape in plan view. Other configurations are the same.
- the wall (15) formed in a lattice shape is formed inside the counter electrode (7).
- each lattice (mesh) can be set according to the number of cells to be fused, and at least two cells can enter.
- the shape of each lattice can be a rectangle, a triangle, a hexagon, or the like in addition to a square.
- the height of the wall forming the lattice is set slightly higher than that of the cell.
- FIG. 8 (a) a plurality of cells (S) are put in the lattice by laser tweezers, After aligning multiple cells (S) in the lattice by applying an alternating voltage to the counter electrode (7) As shown in Fig. 8 (b), cells are fused together by applying UV laser or DC voltage. In FIG. 8, only one grid cell is extracted and shown.
- the cell fusion process using the cell fusion chip having the fusion chamber of the second modified example it is possible to restrict the movement by fitting the cells into the lattice. This facilitates cell fusion processing. Also, selective cell fusion can be achieved by controlling the number of cells entering the lattice with laser tweezers. Furthermore, when cells after fusion are extracted with an external manipulator, the cells are distinguished by a lattice, which makes it easier to obtain.
- the cell fusion chip having the fusion chamber according to the first and second modified examples has some effects even when the counter electrode (7) is not provided in the fusion chamber (3). (3) There is no counter electrode (7) in it.
- the present invention cultivates new species of animals and plants, including the establishment of an artificial insemination system in higher plants, analysis of the functional activity of cell networks, investigation of the effects of proteins and drugs on cells, development of new cell patterning methods, etc.
- This technology has high applicability in biotechnology research centered on regenerative medicine.
- FIG. 1 is a plan view of a cell fusion chip according to the present invention.
- FIG. 2 is a plan view of a cell fusion chip according to the present invention in which a portion including a culture chamber is formed so as to be capable of partial force separation including other chambers.
- FIG. 3 is a view showing an example in which a groove having an acute cross section is formed in the chip as a boundary line for separating the cell fusion chip.
- FIG. 4 is a view showing a usage state of the cell fusion chip according to the present invention.
- FIG. 5 is a plan view showing a first modification of the cell fusion chamber of the cell fusion chip according to the present invention.
- FIG. 6 is a diagram showing the operation of the cell fusion chamber of the first modified example.
- FIG. 7 is a plan view showing a second modification of the cell fusion chamber of the cell fusion chip according to the present invention.
- FIG. 8 is a diagram showing the operation of the cell fusion chamber of the second modified example. Explanation of symbols
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0709846-4A BRPI0709846A2 (pt) | 2006-04-07 | 2007-03-27 | chip de fusço celular |
US12/225,977 US20100068794A1 (en) | 2006-04-07 | 2007-03-27 | Cell Fusion Chip |
CA2648458A CA2648458A1 (en) | 2006-04-07 | 2007-03-27 | Cell fusion chip |
EP07739940A EP2006368A2 (en) | 2006-04-07 | 2007-03-27 | Tip for cell fusion |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-107001 | 2006-04-07 | ||
JP2006107001A JP2007274987A (ja) | 2006-04-07 | 2006-04-07 | 細胞融合用チップ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007116771A1 true WO2007116771A1 (ja) | 2007-10-18 |
Family
ID=38581067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/056502 WO2007116771A1 (ja) | 2006-04-07 | 2007-03-27 | 細胞融合用チップ |
Country Status (7)
Country | Link |
---|---|
US (1) | US20100068794A1 (ja) |
EP (1) | EP2006368A2 (ja) |
JP (1) | JP2007274987A (ja) |
CN (1) | CN101443442A (ja) |
BR (1) | BRPI0709846A2 (ja) |
CA (1) | CA2648458A1 (ja) |
WO (1) | WO2007116771A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101717717B (zh) * | 2009-12-11 | 2012-07-18 | 江阴司特易生物技术有限公司 | 细胞配对融合芯片 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010011824A (ja) * | 2008-07-07 | 2010-01-21 | Tosoh Corp | 細胞融合容器、細胞融合装置及びこれらを用いた細胞融合方法 |
CN115895876B (zh) * | 2022-11-30 | 2024-04-02 | 重庆大学 | 一种基于双侧流场配对结构阵列的细胞电融合芯片装置及制备方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6222587A (ja) * | 1985-07-19 | 1987-01-30 | Hitachi Ltd | 細胞融合装置 |
JPS63181992A (ja) * | 1987-01-24 | 1988-07-27 | Advance Co Ltd | 細胞融合装置 |
JPH03292881A (ja) * | 1990-04-11 | 1991-12-24 | Yaskawa Electric Corp | マイクロ細胞融合装置 |
JPH04349889A (ja) | 1991-05-27 | 1992-12-04 | Shimadzu Corp | 細胞処理方法 |
JPH05276924A (ja) * | 1991-11-07 | 1993-10-26 | Tokimec Inc | 微細路の成形方法及び微細路成形材 |
JP2004138583A (ja) * | 2002-10-21 | 2004-05-13 | Sumitomo Bakelite Co Ltd | 細胞機能測定用マイクロチップ |
JP2005027598A (ja) * | 2003-07-09 | 2005-02-03 | Kitakyushu Foundation For The Advancement Of Industry Science & Technology | 細胞培養チップ及び培養器、それらを用いた細胞培養方法、球状細胞組織体を担持させた細胞担持モジュール、球状細胞組織体 |
JP2005262522A (ja) * | 2004-03-17 | 2005-09-29 | Pentax Corp | ポリマーシートの製造方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7018819B2 (en) * | 2001-11-30 | 2006-03-28 | Cellectricon Ab | Method and apparatus for manipulation of cells and cell-like structures focused electric fields in microfludic systems and use thereof |
-
2006
- 2006-04-07 JP JP2006107001A patent/JP2007274987A/ja active Pending
-
2007
- 2007-03-27 BR BRPI0709846-4A patent/BRPI0709846A2/pt not_active IP Right Cessation
- 2007-03-27 CN CNA2007800171380A patent/CN101443442A/zh active Pending
- 2007-03-27 CA CA2648458A patent/CA2648458A1/en not_active Abandoned
- 2007-03-27 US US12/225,977 patent/US20100068794A1/en not_active Abandoned
- 2007-03-27 WO PCT/JP2007/056502 patent/WO2007116771A1/ja active Search and Examination
- 2007-03-27 EP EP07739940A patent/EP2006368A2/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6222587A (ja) * | 1985-07-19 | 1987-01-30 | Hitachi Ltd | 細胞融合装置 |
JPS63181992A (ja) * | 1987-01-24 | 1988-07-27 | Advance Co Ltd | 細胞融合装置 |
JPH03292881A (ja) * | 1990-04-11 | 1991-12-24 | Yaskawa Electric Corp | マイクロ細胞融合装置 |
JPH04349889A (ja) | 1991-05-27 | 1992-12-04 | Shimadzu Corp | 細胞処理方法 |
JPH05276924A (ja) * | 1991-11-07 | 1993-10-26 | Tokimec Inc | 微細路の成形方法及び微細路成形材 |
JP2004138583A (ja) * | 2002-10-21 | 2004-05-13 | Sumitomo Bakelite Co Ltd | 細胞機能測定用マイクロチップ |
JP2005027598A (ja) * | 2003-07-09 | 2005-02-03 | Kitakyushu Foundation For The Advancement Of Industry Science & Technology | 細胞培養チップ及び培養器、それらを用いた細胞培養方法、球状細胞組織体を担持させた細胞担持モジュール、球状細胞組織体 |
JP2005262522A (ja) * | 2004-03-17 | 2005-09-29 | Pentax Corp | ポリマーシートの製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101717717B (zh) * | 2009-12-11 | 2012-07-18 | 江阴司特易生物技术有限公司 | 细胞配对融合芯片 |
Also Published As
Publication number | Publication date |
---|---|
CN101443442A (zh) | 2009-05-27 |
JP2007274987A (ja) | 2007-10-25 |
EP2006368A9 (en) | 2009-07-22 |
BRPI0709846A2 (pt) | 2011-07-26 |
EP2006368A2 (en) | 2008-12-24 |
US20100068794A1 (en) | 2010-03-18 |
CA2648458A1 (en) | 2007-10-18 |
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