WO2006038405A1 - 細胞の処理方法及び細胞の処理装置 - Google Patents
細胞の処理方法及び細胞の処理装置 Download PDFInfo
- Publication number
- WO2006038405A1 WO2006038405A1 PCT/JP2005/016206 JP2005016206W WO2006038405A1 WO 2006038405 A1 WO2006038405 A1 WO 2006038405A1 JP 2005016206 W JP2005016206 W JP 2005016206W WO 2006038405 A1 WO2006038405 A1 WO 2006038405A1
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- Prior art keywords
- cells
- cell
- magnetic field
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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
- C12N13/00—Treatment of microorganisms or enzymes with electrical or wave energy, e.g. magnetism, sonic waves
-
- 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
- C12M35/06—Magnetic means
-
- 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
- C12N5/06—Animal cells or tissues; Human cells or tissues
- C12N5/0602—Vertebrate cells
- C12N5/0634—Cells from the blood or the immune system
- C12N5/0636—T lymphocytes
-
- 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
- C12N2529/00—Culture process characterised by the use of electromagnetic stimulation
Definitions
- the present invention relates to a cell processing method and a cell processing apparatus for processing a cell by applying a magnetic field to a cell group in which different types of cells are mixed.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-49105
- a magnetic bead Ba having an antibody capable of specifically binding to an antigen of this target cell on a target cell Sa such as a cancer cell in a cell group in which different types of cells are mixed.
- a pulse magnetic field of at least one of a single pulse and a multipulse is applied to this cell group to selectively kill the target cell Sa.
- the principle of this death is that when magnetic beads Ba are stimulated by a pulsed magnetic field, the magnetic beads Ba move instantaneously, and the target cell Sa is pulled by the magnetic beads more strongly than Ba, and is physically crushed and killed. Being
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-49105
- the force that kills the target cell Sa using the magnetic beads Ba is not always the target cell in such cell processing using magnetism.
- the goal is to survive without the purpose of dying, and in that case, there was a problem that the method could not be used.
- the present invention has been made in view of the above-described problems.
- the magnetic beads can be used not for the purpose of killing but for the purpose of survival, and by using the magnetic beads, the survival rate of specific cells can be improved. It is an object of the present invention to provide a cell processing method and a cell processing apparatus that can perform magnetic field treatment on a cell.
- the cell processing method of the present invention uses different types of cells.
- a method for treating cells by applying a magnetic field to a group of cells mixed with a magnetic field a magnetic bead having an antibody capable of specifically binding to the antigen of the specific cell in a specific cell of the cell group.
- a sinusoidal fluctuating magnetic field is applied to the cell group, and the survival rate of the specific cells is increased from the survival rate of non-specific cells other than the specific cells.
- the inventors of the present application in the condition of a variable magnetic field, in particular, in a sinusoidal variable magnetic field, bind the magnetic beads to specific cells, so that the magnetic beads are rather reversed. It was found that inactivation of specific cells was suppressed compared to cells without binding.
- the mechanism is that in cells placed in a sinusoidal fluctuating magnetic field, the nuclear matter mainly composed of ions undergoes a magnetic force repeatedly when moving in the fluctuating magnetic field, thereby deviating from the normal division process.
- the cell division ends abnormally and the cell dies, or the structural abnormality of the cell membrane is induced, or the DNA synthesis is disturbed.
- the sinusoidal magnetic field is characterized by the sudden reversal of the direction of the magnetic field lines, making it difficult for the magnetic bead to follow the movement. It is thought to be caused by the suppression of these injuries to absorb (or buffer) the effects of the direct magnetic field of the cells and reduce the magnetic field damage effects on the cells. That.
- magnetic beads are bound to specific cells other than malignant cells such as cancer cells having a relatively high division rate, and magnetic beads are not bound to non-specific cells of malignant cells.
- a sinusoidal fluctuating magnetic field to increase the survival rate of specific cells, it becomes possible to inactivate the division ability of non-specific cells and promote death or reduction. Is expected to be used.
- the applied magnetic field intensity is set to 0.01 ⁇ T (Tesla) ⁇ 1.
- the frequency of the sine wave-like fluctuating magnetic field is set to 1 to 300 ⁇ . Desirably, 5 to: LOOHz. Within this range, the survival rate of specific cells is effective Can be increased.
- the cell temperature t is set to 4 ° C ⁇ t ⁇ 37 ° C. Desirably, the cell temperature t was set to 25 ° C ⁇ t ⁇ 37 ° C.
- the magnetic field is applied for 5 min to 240 min. In this case, if the time is shorter than 5 minutes, sufficient effects cannot be obtained. On the other hand, if the time is longer than 240 min, the effect on specific cells increases.
- a mitotic rate promoter for accelerating the mitotic rate of the non-specific cells is added.
- non-specific cells are activated (cell division is stimulated), and the viability of non-specific cells can be reduced more powerfully and effectively.
- PHA phytohemagglutinin
- ConA concanavalin A
- lymphocyte-specific peptide lymphocyte-specific monoclonal antibody
- galactosylceramide ceramide
- ganglioside ganglioside
- diacylglyceol tetradecanol phorbol acetate
- TP ⁇ substance of lymphocyte-specific monoclonal antibodies
- each immune cell (T cell or NK cell) is activated by a specific molecule (peptide, protein, antibody or sugar, lipid), but is hardly activated by other molecules. Therefore, by activating specific immune cells (cells) that have malfunctioned and applying a variable magnetic field (providing split growth stimulation), only abnormal immune cells can be selected without damaging normal immune cells. Therefore, it can be removed without side effects.
- the cell processing apparatus of the present invention for solving the above-mentioned problems has an antibody capable of specifically binding to an antigen of the specific cell in a specific cell among a group of cells in which different types of cells are mixed.
- ⁇ T (Tesla) ⁇ 1, 1 to 300 ⁇
- the configuration includes a dynamic magnetic field generator. Thereby, a sinusoidal fluctuating magnetic field can be reliably applied to the cells.
- variable magnetic field generation unit is disposed and rotated with a container held by the container holding unit interposed therebetween, and a rotation plate provided on each of the rotation plates by rotation.
- a permanent magnet that generates a sinusoidal magnetic field and a motor that rotationally drives the rotating disk are provided.
- the apparatus can be made relatively simple and not expensive, the processing can be simplified and simplified, and the versatility can be improved.
- the survival rate of specific cells can be increased by increasing the survival rate of non-specific cells. Therefore, for example, a magnetic bead is bound to a specific cell other than a malignant cell, and a magnetic bead is not bound to a non-specific cell of a malignant cell, and a sinusoidal variable magnetic field is applied to increase the survival rate of the specific cell. In this way, it becomes possible to inactivate the ability to divide non-specific cells and promote death or reduction, and it can be expected to be applied to medical fields such as purification of blood for transfusion. .
- FIG. 1 is a perspective view showing a cell processing apparatus according to an embodiment of the present invention.
- FIG. 2 is a perspective view showing a configuration of a container and a container holding part in the cell processing apparatus according to the embodiment of the present invention.
- FIG. 3 shows the configuration of the rotating disk of the fluctuating magnetic field generator in the cell processing apparatus according to the embodiment of the present invention, where (a) is a view in FIG. 1 and (b) is in FIG. FIG.
- FIG. 4 is a diagram showing the relationship between specific cells and magnetic beads.
- FIG. 5 is a diagram showing the relationship between specific cells and magnetic beads in experimental examples.
- FIG. 6 is a graph showing the results of an experiment on the effect of magnetic beads on T cells in a sinusoidal magnetic field application environment, and showing the increase or decrease in the number of cells with the number of cells in the control group as 100%.
- FIG. 7 is a diagram showing the relationship between target cells and magnetic beads for the purpose of conventional killing.
- the processing apparatus can process, for example, cells in blood collected from a human body as a processed product.
- the cells include various cancer cells such as leukemia and cells containing malignant cells such as virus-infected cells.
- the processing apparatus K includes a container 1 that stores a processed product including a cell group in which different types of cells to be processed are mixed.
- a container 1 that stores a processed product including a cell group in which different types of cells to be processed are mixed.
- a test tubular resin body 2 having a lid 3 integrally provided with a resin hinge 4 is used as the container 1, for example, as shown in FIG. 2, a test tubular resin body 2 having a lid 3 integrally provided with a resin hinge 4 is used.
- a magnetic bead B having an antibody capable of specifically binding is bound to an antigen of a specific cell S in a cell group.
- the magnetic beads B appropriate ones are used depending on the specific cells.
- the container 1 is held by a container holding unit 10 made of resin.
- the container holding unit 10 includes a base 11 that is detachably fixed to the machine base 5 with screw means 14 (FIG. 1), and a base 11 that is erected and holds the container 1
- a plurality of recesses 12 are provided on a predetermined circumference (four in the embodiment), and the holding plate 13 is detachably attached to both sides of the holding plate 13 with clips 15 or the like and fitted into the recesses 12.
- a pair of presser plates 16 that prevent the container 1 from falling off.
- a recess 17 is formed in which one end through which a rotating shaft 22 of a variable magnetic field generating unit 20 described later is inserted is opened.
- the machine base 5 is provided with a variable magnetic field generation unit 20.
- Fluctuating magnetic field generator 20 has a magnetic field strength of 0.01 ⁇ T (Tesla) ⁇ 1 in the processed material in container 1 held in container holder 10, and 0.5 ⁇ ⁇ , 1 to 300 ⁇ in the embodiment. Then, a 50Hz sinusoidal fluctuation magnetic field is applied.
- variable magnetic field generation unit 20 includes a pair of rotating disks 21A and 21B that are disposed and rotated with the container 1 held by the container holding unit 10 interposed therebetween.
- the turntables 21A and 21B are supported by one rotary shaft 22. Both ends of the rotating shaft 22 are rotatably supported by bearing stands 23 and 24.
- each rotating disk 21A, 21B generates a sinusoidal fluctuating magnetic field by rotation.
- a permanent magnet 25 is provided.
- the magnetic poles are alternately varied at an equiangular relationship on the circumference corresponding to the circumference where the concave portion 12 is provided on the side facing the container holding portion 10 of one of the turntables 21A.
- Six permanent magnets 25 are provided.
- the magnetic poles are alternately different at an equiangular relationship on the circumference corresponding to the circumference where the concave portion 12 is provided, and the one rotating plate 21A
- the six permanent magnets 25 are provided in a positional relationship that is one phase shifted from the permanent magnet 25. That is, six pairs of permanent magnets 25 having different magnetic poles are alternately arranged across the holding plate 13.
- One bearing stand 24 is provided with a motor 26 that rotationally drives the rotary shafts 22 of the rotary disks 21A and 21B.
- the number of rotations of the motor 26 is 1000 RPM, so that a 50 Hz sinusoidal magnetic field can be applied.
- the processing apparatus K is placed in a thermostatic bath (not shown) that keeps the temperature in the container 1 within a certain range.
- the container 1 is held by the container holding unit 10 by the processing device K, and the holding plate 13 of the container holding unit 10 is positioned between the rotary plates 21A and 21B of the variable magnetic field generating unit 20, and 5 min to 240 min.
- a sinusoidal fluctuating magnetic field is applied. In the embodiment, for example, it is set to 120 min.
- the speed of division is relatively high, and the magnetic beads B are applied to specific cells S other than malignant cells such as cancer cells.
- the magnetic beads B are not bound to non-specific cells of malignant cells. That is, as shown in FIG. 4, the magnetic beads B having an antibody capable of specifically binding to the antigen of the specific cell S are bound in advance. Then place the cell population in Container 1. Then, the container 1 is held by the container holding unit 10, the holding plate 13 of the container holding unit 10 is positioned between the rotating plates 21A and 21B of the variable magnetic field generating unit 20, the motor 26 is operated, and the magnetic field is changed for a predetermined time. Hold in.
- a mitotic rate accelerator for accelerating the division rate of non-specific cells as necessary.
- PHA phytohemagglutinin
- ConA concanavalin A
- PHA phytohemagglutinin
- TPA tetradecanol phorbol acetate
- each immune cell (T cell or NK cell) is activated by a specific molecule (peptide, protein, antibody or sugar, lipid), but is mostly activated by other molecules. I do not receive it. Therefore, by activating specific immune cells (cells) that have malfunctioned and applying a variable magnetic field (providing split growth stimulation), only abnormal immune cells can be selected without damaging normal immune cells. Therefore, it can be removed without side effects. Therefore, by adding this mitotic rate accelerator, cells are activated (stimulation of cell division), and abnormal cells can be removed more powerfully and effectively.
- a specific molecule peptide, protein, antibody or sugar, lipid
- a deactivation auxiliary agent that deactivates non-specific cells.
- vitamin A thyroid hormone
- darcocorticoid cyclophosphamide
- azathioprine adriamycin
- bleomycin antimetabolite
- alkylating agent plant alkaloid
- plant alkaloid It is effective to use at least one substance (bin alkaloid) or cytoskeletal disorder drug.
- drugs used for the treatment of cancer and the addition of these substances makes it possible to mainly inactivate cancer cells with high efficiency. That is, in addition to cell inactivation by a magnetic field, inactivation by an inactivation auxiliary agent is also performed, so the effect is Synergistically, the cell removal efficiency is further improved.
- CD8′T cells and CD4′T cells were used as cells.
- the magnetic bead B a CD3 antibody-bound one was used.
- one with magnetic beads B bound and one without magnetic beads B are prepared, a mitotic rate accelerator is added (PHA is applied), and the above processing device K is used under a sinusoidal magnetic field. The survival rate of each cell was compared.
- test conditions were:
- binding of magnetic beads B may reduce cell damage.
- a substance that specifically recognizes a target cell using a substance (drug or monoclonal antibody) that recognizes a specific cell prepare a complex in which magnetic beads are bound to (anti-CD3 monoclonal antibody in the experiment), and bind the CD3 antibody magnetic bead complex to leukocytes prepared from human peripheral blood.
- the CD3 antibody binds only to T lymphocytes (CD4 lymphocytes and CD8 lymphocytes)
- only T lymphocytes are affected by the magnetic field and magnetic beads. Therefore, it is possible to protect the cells against the target cells by adjusting the magnetic field strength (variable magnetic field). Under strong magnetic field, the survival rate of T lymphocytes decreases However, the survival rate of sputum lymphocytes with magnetic beads is improved.
- any cells other than blood may be appropriately changed.
- the cell processing method and cell processing apparatus of the present invention can be used in medical fields such as purification of blood for transfusion.
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- Biomedical Technology (AREA)
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- Bioinformatics & Cheminformatics (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Cell Biology (AREA)
- Hematology (AREA)
- Sustainable Development (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
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Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004286388A JP3936714B2 (ja) | 2004-09-30 | 2004-09-30 | 細胞の処理方法 |
| JP2004-286388 | 2004-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006038405A1 true WO2006038405A1 (ja) | 2006-04-13 |
Family
ID=36142488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/016206 Ceased WO2006038405A1 (ja) | 2004-09-30 | 2005-09-05 | 細胞の処理方法及び細胞の処理装置 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3936714B2 (ja) |
| WO (1) | WO2006038405A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019121423A1 (en) * | 2017-12-20 | 2019-06-27 | Ge Healthcare Bio-Sciences Corp. | Cell harvesting and isolation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002153268A (ja) * | 2000-09-05 | 2002-05-28 | Fuyuki Mitsuyama | 細胞機能亢進方法と細胞機能抑制方法とこれらに用いる薬剤および機械器具 |
| JP2004049105A (ja) * | 2002-07-19 | 2004-02-19 | Terutake Ueno | 細胞破砕装置及び細胞破砕方法、治療装置並びに細胞成分の選択的分離方法 |
| JP2004097007A (ja) * | 2002-09-04 | 2004-04-02 | Japan Science & Technology Corp | 機械的振動による生物機能の制御方法とその装置 |
-
2004
- 2004-09-30 JP JP2004286388A patent/JP3936714B2/ja not_active Expired - Fee Related
-
2005
- 2005-09-05 WO PCT/JP2005/016206 patent/WO2006038405A1/ja not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002153268A (ja) * | 2000-09-05 | 2002-05-28 | Fuyuki Mitsuyama | 細胞機能亢進方法と細胞機能抑制方法とこれらに用いる薬剤および機械器具 |
| JP2004049105A (ja) * | 2002-07-19 | 2004-02-19 | Terutake Ueno | 細胞破砕装置及び細胞破砕方法、治療装置並びに細胞成分の選択的分離方法 |
| JP2004097007A (ja) * | 2002-09-04 | 2004-04-02 | Japan Science & Technology Corp | 機械的振動による生物機能の制御方法とその装置 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019121423A1 (en) * | 2017-12-20 | 2019-06-27 | Ge Healthcare Bio-Sciences Corp. | Cell harvesting and isolation |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3936714B2 (ja) | 2007-06-27 |
| JP2006094802A (ja) | 2006-04-13 |
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