WO2009125877A1 - 平滑筋幹細胞の単離方法 - Google Patents
平滑筋幹細胞の単離方法 Download PDFInfo
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- 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
- C12N5/0652—Cells of skeletal and connective tissues; Mesenchyme
- C12N5/0662—Stem cells
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- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
- A61L27/38—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix containing added animal cells
- A61L27/3804—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix containing added animal cells characterised by specific cells or progenitors thereof, e.g. fibroblasts, connective tissue cells, kidney cells
- A61L27/3834—Cells able to produce different cell types, e.g. hematopoietic stem cells, mesenchymal stem cells, marrow stromal cells, embryonic stem cells
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- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
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- A61P21/00—Drugs for disorders of the muscular or neuromuscular system
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- C12N5/06—Animal cells or tissues; Human cells or tissues
- C12N5/0602—Vertebrate cells
- C12N5/0652—Cells of skeletal and connective tissues; Mesenchyme
- C12N5/0661—Smooth muscle cells
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
- G01N33/56966—Animal cells
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
- G01N33/6887—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids from muscle, cartilage or connective tissue
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- C12N2500/00—Specific components of cell culture medium
- C12N2500/02—Atmosphere, e.g. low oxygen conditions
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/435—Assays involving biological materials from specific organisms or of a specific nature from animals; from humans
- G01N2333/705—Assays involving receptors, cell surface antigens or cell surface determinants
- G01N2333/70546—Integrin superfamily, e.g. VLAs, leuCAM, GPIIb/GPIIIa, LPAM
- G01N2333/7055—Integrin beta1-subunit-containing molecules, e.g. CD29, CD49
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- G—PHYSICS
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- G01N2333/435—Assays involving biological materials from specific organisms or of a specific nature from animals; from humans
- G01N2333/705—Assays involving receptors, cell surface antigens or cell surface determinants
- G01N2333/70589—CD45
Definitions
- the present invention relates to a smooth muscle-derived tissue stem cell having a specific surface marker, a novel isolation method and culture method thereof, and use thereof.
- Intrinsic organisms present in various organs and tissues
- stem cells present in various organs and tissues
- stem cells derived from various tissues have been reported, and stem cells have been isolated.
- stem cells isolated so far include skeletal muscle stem cells, cardiac muscle stem cells, liver stem cells, neural stem cells, knee stem cells, epidermal stem cells, adipose tissue stem cells, and the like.
- the isolation method the side population (SP) method is often used, and the present inventor previously isolated smooth muscle stem cells of human uterus using the SP method (see Patent Document 1).
- Regenerative medicine is currently attracting a great deal of attention as a medical treatment that restores and restores the function of human cells and tissues that have been damaged or lost due to diseases or trauma. If it becomes possible to isolate and identify the above-mentioned tissue stem cells and replicate and proliferate, it is considered that regenerative medicine will be possible.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2007-202435 Disclosure of Invention
- An object of the present invention is to provide smooth muscle stem cells, particularly uterine muscle stem cells, and to provide utilization of these stem cells.
- hypotrophy and an increase in the number of cells (hyperplasia) can occur, and that dramatic change can be repeated more than 20 times in a woman's lifetime. Conspicuous during pregnancy and delivery It is a very unique tissue that shows an increase in cell numbers and is known to undergo rapid apoptosis during the postpartum period.
- the present inventor focused on a series of events such as an increase in the number of cells and apoptosis during pregnancy and postpartum, and considered the possibility that tissue stem cells exist in uterine smooth muscle, which is the main constituent tissue of myometrium. It was.
- the present inventor previously invented a method for isolating human uterine smooth muscle stem cells by the SP method (Japanese Patent Laid-Open No. 2007-202435).
- the SP method undergoes a process of screening by irradiating with a UV laser after reaction with a DNA dye, the safety and sterility of isolated stem cells, including cell damage, cannot be guaranteed.
- the present inventor attempted isolation using a surface marker as a method that can ensure the safety and sterility of isolated cells with little damage to the cells. Specifically, normal myometrium was collected, dispersed cells were obtained by enzyme treatment, and Lin (CD31, CD45, Glycophorin A) negative cells were selected by flow cytometry, and then CD34 positive / CD49f positive cells (Double Positive Cells were sorted into DP / Lin-) and other cells (nonDP).
- double positive cells characterized in that CD31, CD45 and Glycophorin A are negative and CD34 and CD49f are positive from the dispersed cells; DP / Lin- is used as the eclampsia DP / Lin- (DP / Lin- ) As FACS.
- double positive cells DP characterized by being positive for CD34 and CD49f can be isolated as eclamptic muscle DP using the expression of only CD34 and CD49f as an index.
- double positive cells DP, which is characterized by positive CD34 and CD49f, were selected from cells negative for CD45, and DP could be isolated as myometrium DP.
- DP / Lin- and DP can be induced to differentiate into bone, fat, and chondrocytes in vitro, and when DP / Lin- and DP are transplanted into an immunodeficient mouse, myometrial tissue is reconstructed.
- the isolated cells were confirmed to be uterine smooth muscle stem cells.
- the present invention is as follows.
- a method for isolating mammalian smooth muscle-derived smooth muscle stem cells comprising anti-CD31 antibody, anti-CD45 antibody, anti-Glycophorin A anti-antibody wherein mammalian smooth muscle cells are labeled with a fluorescent dye.
- a method for isolating smooth muscle stem cells comprising anti-CD31 antibody, anti-CD45 antibody, anti-Glycophorin A anti-antibody wherein mammalian smooth muscle cells are labeled with a fluorescent dye.
- a method for isolating mammalian smooth muscle-derived smooth muscle stem cells comprising contacting mammalian smooth muscle cells with an anti-CD34 antibody and an anti-CD49f antibody labeled with a fluorescent dye, and anti-CD34 antibody and anti-CD49f
- a method for isolating smooth muscle stem cells comprising isolating cells that bind to an antibody.
- [3] A method for isolating smooth muscle stem cells derived from mammalian smooth muscle, wherein the mammalian smooth muscle cells are contacted with an anti-CD45 antibody, an anti-CD34 antibody and an anti-CD49f antibody labeled with a fluorescent dye.
- [4] A method for isolating smooth muscle stem cells according to any one of [1:] to [3], wherein cells are sorted using flow cytometry.
- Mammalian smooth muscle cells are sorted into Lin (CD31, CD45, Glycophorin A) positive cells (Lin +) and Lin negative cells (Lin-) by flow cytometry, and Lin negative cells are collected.
- Lin CD31, CD45, Glycophorin A
- Lin- Lin negative cells
- [9] A method for isolating smooth muscle stem cells according to any one of [1] to [8], wherein the mammal is human.
- [1 2] A smooth muscle stem cell that is negative for CD45 and positive for CD34 and CD49f isolated by any of the methods of [1] to [9].
- the smooth muscle stem cell derived from uterine muscle having the ability to differentiate into uterine muscle when transplanted into uterine muscle.
- composition for smooth muscle tissue regeneration comprising the smooth muscle stem cells according to any one of [10] to [15].
- Fig. 11 shows the results of flow cytometric analysis of myometrial dispersed cells stained with fluorescently labeled antibodies.
- FIG 1-2 shows the results of RT-PCR expression analysis of ABCG2 in DP / Lin_, nonDP / Lin-, and Lin +.
- Tissue refers to the eclamptic muscle cells when dispersed by mechanical and enzymatic treatment (DP / Lin_, nonDP / Lin-and Lin +), and NC uses distilled water as a template. Indicates a negative control.
- Fig. 2 is a graph showing cell proliferation activity as an index for the growth of DP / Lin- and other fractions cultured under a normal oxygen concentration of 20% or a low oxygen concentration of 2%.
- Fig. 3 is a photograph showing Al force phosphatase staining microscopic images of DP / Lin- (Fig. 3A) and nonDP / Lin- (Fig. 3B) cultured in a bone cell induction medium.
- FIG. 4 is a photograph showing oil red 0 stained microscopic images of DP / Lin ⁇ (FIG. 4A) and nonDP / Lin ⁇ (FIG. 4B) cultured in an adipocyte induction medium.
- FIG. 5 is a photograph showing a microscopic image of DP / Lin- toluidine blue stained in a chondrocyte induction medium.
- Fig. 6 is a photograph showing fluorescent immunostaining images of the uterus of N0G pregnant mice transplanted with DP / Lin- is there.
- FIG. 7 is a photograph showing a fluorescent immunostained image of an estrogen (E 2 ) sustained-release pellet transplanted NOG mouse uterus transplanted with nonDP / Lin_.
- Figure 8 is a graph showing the percentage of human cells due to pregnancy and estrogen (E 2 ) sustained-release pellet transplantation in the uterus of NOG mice transplanted with DP / Lin ⁇ , DP / Lin_, and Lin +.
- FIG. 9 shows the results of flow cytometric analysis of myometrial dispersed cells that were stained with fluorescently labeled antibody and were not pre-selected using the Lin marker.
- FIG. 10 is a diagram showing the cell distribution of the cell subfractions using CD31 expression in the DP (Double positiye; CD49f (+) CD34 (+)) fraction as an index.
- FIG. 11 shows the results of differentiation marker gene expression analysis in the DP fraction, CD49f ( ⁇ ) CD34 (+) fraction and CD34 (_) fraction.
- Fig. 12 is a photograph showing the state of colony formation of cells in the DP fraction.
- Figure 13 shows the DP fraction, CD49f (-) CD34 (+) fraction, CD34 (-) fraction, CD31 (+) subfraction (DP 31+) and DP fraction in DP fraction.
- FIG. 3 shows colony forming ability of CD31 ( ⁇ ) subfraction (DP 31-).
- Fig. 14 is a photograph showing the result of transplanting the DP fraction into the uterus of a severely immunodeficient mouse.
- the stem cells of the present invention are smooth muscle-derived tissue stem cells isolated from smooth muscle.
- Smooth muscles from which the stem cells of the present invention are derived include uterine smooth muscles, visceral smooth muscles, and vascular smooth muscles, preferably uterine smooth muscles. These tissue pieces can be collected, and the cells can be dispersed, and stem cells can be isolated from the dispersed cells.
- uterine fibroids can be used.
- the animal species from which smooth muscles are collected is not limited, and mammals such as mice, rats, monolemots, hamsters, magpies, cats, inu, hidges, pigs, sushi, horses, goats, monkeys, humans, etc. Can be used.
- the “stem cell” refers to a cell having self-replicating ability and pluripotency. Stem cells are usually able to regenerate the tissue when the tissue is damaged. Unlike embryonic stem cells, tissue stem cells are cells that have a limited direction of differentiation, exist in specific locations in the tissue, and have an undifferentiated intracellular structure. Therefore, tissue stem cells have a low level of pluripotency. Tissue stem cells have a high nucleocytoplasm ratio and poor organelles. Tissue stem cells are generally pluripotent, have a slow cell cycle, and remain proliferative for the life of the individual. In the present invention, the term “stem cell” refers to a cell population containing at least a certain amount of stem cells, for example, a cell population containing 90% or more, preferably 95% or more of stem cells.
- the smooth muscle stem cells of the present invention are Lin-, CD34-positive and CD49f-positive cells.
- Lin-cells are cells that are negative for differentiation antigen and do not have surface antigens that appear in response to differentiation from stem cells to cells of a specific lineage, that is, these surface antigens are not expressed on the cell surface.
- CD31 is an antigen expressed on almost all monocytes, platelets and granulocytes
- CD45 is found on all leukocytes including peripheral blood lymphocytes, monocytes, granulocytes, eosinophils and basophils.
- GPA is an antigen that is expressed and is associated with red blood cells.
- CD34 is expressed in undifferentiated stem cells, and CD49f is expressed in platelets and megakaryocytes.
- CD34 positive and CD49f positive cells are called double positive (DP) cells, Lin-, and CD34 positive and CD49f positive cells are called DP / Lin- cells.
- the smooth muscle stem cell of the present invention further expresses ABCG2 (ATP-binding cassette transporter G2) which is a stem cell marker.
- the smooth muscle stem cells of the present invention are CD34 positive and CD49f positive cells.
- CD45, CD31 and Glycophorin A may be negative or positive.
- the cells are also referred to as double positive (DP) cells.
- the stem cells of the present invention can be isolated based on the antigenic properties of the smooth muscle cell surface. That is, cells that are Lin-, CD34-positive and CD49f-positive may be isolated from smooth muscle cells.
- the stem cells of the present invention may be isolated from smooth muscle cells using CD34 and CD49f expression alone as an indicator. At this time, CD45-negative cells are selected in advance, and CD34-positive and CD49f-positive are selected from them. Certain cells may be isolated.
- Cells can be dispersed by chopping tissue pieces and treating them with an enzyme such as collagenase. It is desirable to disperse the dispersed cells to the state of a single cell. For example, the cells are passed through a cell strainer, and further subjected to density gradient centrifugation using a specific gravity solution such as Ficoll-Paque (registered trademark), and then trypsinized. Etc. can be dispersed as a single cell.
- a specific gravity solution such as Ficoll-Paque (registered trademark)
- CD31, CD45, Glycophorin A, CD34, and CD49f labeled with different fluorescent dyes, or further antibodies against ABCG2 are contacted with dispersed smooth muscle cells to stain smooth muscle cells with surface antigens, and then flow cytometry or FACS
- the smooth muscle stem cells of the present invention can be isolated by sorting DP / Lin_ cells using.
- the cells may be isolated directly from smooth muscle cells by flow cytometry, or the antibodies against one or more of the differentiation antigens consisting of CD31, CD45 and Glycophorin A are bound before sorting by flow cytometry.
- the cells having the differentiation antigen may be removed using the magnetic beads, and the cells of the present invention may be isolated from the remaining cells using FACS.
- CD34 and CD49f labeled with different fluorescent dyes, or antibodies against CD45, CD3 and CD49f are contacted with dispersed smooth muscle cells to stain smooth muscle cells with surface antigens, and flow cytometry or FACS is used. Then, the smooth muscle stem cells of the present invention can be isolated by sorting DP cells. At this time, CD34 and CD49f-positive cells may be isolated directly from smooth muscle cells by flow cytometry, or have CD45 by using magnetic beads to which an antibody against CD45 is bound before sorting by flow cytometry. The cells of the present invention may be isolated from the remaining cells using FACS.
- Cy As fluorescent dyes used for labeling, Cy (trademark) 3, Cy5, Texas Red (trademark),
- APC allophycocyanin PE (phycoerythrin), PE-Cy5, FITC (fluorescein isothiocyanate), PerCP, and the like.
- FACS vantage manufactured by Becton Dickinson
- FACS Calibur manufactured by Becton Dickinson
- the isolated stem cell of the present invention can be grown by culture.
- the medium to be used is not limited, and a known medium (for example, DMEM (Dulbecco's modified Eagle's medium) medium) can be used.
- DMEM Denbecco's modified Eagle's medium
- mesenchymal stem cel l basal medium (MSCBM)) (Cambrex Bio Science, present Poietics)
- MSCGM mesenchymal stem cel l growth medium
- Etc. can be used.
- serum such as urine fetal serum
- antibiotics such as penicillin and streptomycin
- various physiologically active substances may be added as appropriate.
- the culturing oxygen concentration should be lower than 20% of the normal culturing. Preferably it is 5% or less, more preferably 2.5% or less, particularly preferably 2%.
- stem cells can be proliferated. Cells may be seeded and cultured in a tissue culture culture dish.
- the isolated stem cells of the present invention can be induced to differentiate into specific tissue cells in vitro. Since the stem cells of the present invention have pluripotency, they can basically be induced to differentiate into any tissue cell. Differentiation-inducing media for various tissues are commercially available, and differentiation can be induced using these commercially available media. For example, when inducing differentiation into bone cells, a bullet kit osteoblast differentiation medium (Cambrex Bioscience, currently Poietics) may be used. When inducing differentiation into adipocytes, a bullet kit fat cell differentiation medium is used.
- the smooth muscle stem cells of the present invention can be induced to differentiate into smooth muscle tissue cells such as uterine muscle tissue cells.
- the oxygen concentration is the normal cell culture condition, that is, about 20%. Cells differentiated into these tissue cells can be further cultured to construct a tissue.
- stem cells have been induced to differentiate into tissue cells can be determined by examining the expression of markers specific to each tissue cell. For example, differentiation into bone cells can be examined by the presence or absence of Al force phosphatase staining positive cells, and differentiation into adipocytes can be examined by the presence or absence of oil red 0 staining positive cells. Furthermore, differentiation into chondrocytes can be examined by the presence or absence of toluidine blue staining positive cartilage pellets.
- the present invention includes cell lines in which the smooth muscle stem cells of the present invention are immortalized.
- the Cell lines have both proliferative and pluripotency, and can be used by growing as many times as necessary.
- the established cell line can be used as a research tool for smooth muscle differentiation and development.
- Human cells become immortalized by radiation, mutagens, and viruses (in some cases, cancer cells), but more recently, compared to original cell characteristics without causing oncogenesis or chromosomal abnormalities.
- hTERT human telomerase reverse transcriptase gene
- SV40T gene a human telomerase reverse transcriptase gene
- the smooth muscle stem cells of the present invention can be used for regenerative medicine and the like. For example, by transplanting and administering the smooth muscle stem cells of the present invention to a damaged smooth muscle site by injection using a syringe, the stem cells are differentiated into smooth muscle cells, and the damaged smooth muscle can be regenerated. Further, as described above, the stem cell of the present invention may be induced to differentiate in vitro, a tissue is constructed, and the tissue may be transplanted. In these regenerative medicine, in order to avoid rejection by the recipient of the transplanted cells or tissues, a tissue piece is collected from a patient who is going to receive regenerative medicine, and the smooth muscle stem cells of the present invention are isolated from the tissue piece. It is desirable to use it separately.
- a tissue piece is collected from the remaining myometrium of a patient whose part of the uterus has been removed due to a disease such as uterine sarcoma, and myometrial stem cells are isolated from the tissue piece. It can be used for playback.
- the smooth muscle stem cells of the present invention can be differentiated into other tissues. For example, by removing a piece of tissue from a smooth muscle such as myometrium from a patient who has damaged a specific tissue other than smooth muscle, isolating smooth muscle stem cells and inducing differentiation of the smooth muscle stem cells into damaged tissue. It can be used for regenerative medicine of tissues other than smooth muscle.
- the present invention also includes a composition for regenerative medicine containing the stem cells of the present invention, that is, a preparation for regenerative medicine.
- the stem cells of the present invention derived from humans into animals other than humans and immunodeficient animals, it is possible to obtain model animals partially having human smooth muscle tissue.
- the smooth muscle stem cells of the present invention into the smooth muscle of an immunodeficient animal, the stem cells of the present invention differentiate into smooth muscle, and a human smooth muscle tissue is partially constructed in the animal body.
- human smooth muscle tissue is constructed in the animal body, it is necessary to measure the protein specific to human smooth muscle expressed by cells and confirm that it has the characteristics of smooth muscle morphologically. Good.
- smooth muscle is myometrium
- vimentin is positive It is only necessary to confirm that it is derived from human (red) and a SMA positive cell (green) morphologically uterine smooth muscle.
- the animal partially having human smooth muscle tissue thus obtained can be used as a model animal having human smooth muscle tissue.
- the smooth muscle when the smooth muscle is a uterine muscle, it can be used for screening for drugs that contract the uterus or relax the uterus.
- the smooth muscle stem cells of the present invention when transformed into cancer and transplanted, a model animal having human uterine cancer or the like can be produced and used for screening for therapeutic agents.
- immunodeficient animals include immunodeficient mice such as scid mice and NOG mice.
- a fibroid isolated from a human uterus is cut into small pieces of approximately 2 mm 3 with scissors, 0.2% (w / v) collagenase (Wako Pure Chemicals, Osaka), 0.05% (w / v) DNasel (GIBC0, Reformia, USA) containing DMEM medium (1% antibiotic monoantifungal [GIBC0], 10% urchin fetal serum [BioWest, Florida, USA] In Dulbecco's modified Eagle's medium (DMEM, Sigma-Aldrich, Missouri, USA)) at a rate of 10 ml per lg of tissue pieces and shaken at 37 ° C for 16 hours for enzymatic cell dispersion Processed. Subsequently, after filtering through a 400 jum pore size polyethylene mesh, an additional 40 ⁇ pore size cell strainer
- the above dispersed single myometrial cell population was added to Hank's equilibration buffer (free of calcium and magnesium, containing 2% fetal urine serum, 10 raM HEPES, and 1% pecillin and streptomycin. HBSS +) suspended at a concentration of 2 X 10 6 The antibody was added and reacted at 4 ° C for 30 minutes. Subsequently, after centrifugation at 4 ° C, the suspension was suspended in 2 ml of the above Hanks solution and stained with Propidium Iodide (PI) for selection of dead cells.
- PI Propidium Iodide
- the fluorescence-labeled antibodies used were PE-conjugated anti-CD31 antibody (IgGl, BD Biosciences), PE-conjugated anti-CD45 antibody (IgGl, BD Biosciences), PE-conjugated anti-Glycohporin A antibody (IgG2b, BD Biosciences), APC-conjugated anti-CD34 antibody ( IgGl, BD Biosciences) and FITC-conjugated anti-CD49f antibody (IgG2a, BD Biosciences).
- cell populations were developed in two dimensions by flow cytometry.
- the stained dispersed cells were analyzed using flow cytometry (FACS Vantage SE, Becton Dickinson) and analysis software (Cell-Quest, Becton Dickinson).
- Figure 1 shows the cell distribution.
- 1 x 10 5 cells were collected in a two-dimensional manner, and Lin (CD31, CD45, Glycophorin A) positive cells (Lin +) and negative cells (Lin-) were selected (Fig. 1 _ 1
- the cells were sorted into CD34 positive / CD49f positive cells (Double Positive cells; DP / Lin-) and other cells (nonDP / Lin-) (Fig. 1-1C).
- Double Pos itive cells; DP / Lin- fractions were collected and used as eclampsia DP / Lin- cells.
- Figure 1-2 shows the result. The expression level of the internal standard GAPDH was not different between the two. This indicates that DP / Lin_ expresses the stem cell marker ABCG2 higher than other fractions and is in an immature stage with a lower degree of differentiation.DP / Lin- It has properties that match the characteristics.
- Example 2 Myometrial Double Pos i tive cells; DP / Lin-cell culture
- DP / Lin- has pluripotency, which is one of the stem cell characteristics
- DP / Lin- under a medium that can induce differentiation into adipocytes, bone cells, and chondrocytes, respectively. And examined whether they can differentiate into different cell lineages.
- Pre-kit adipocyte differentiation medium (Cambrex Bio Science, Sanko Junyaku Co., Ltd., product number PT-3002) is used as a differentiation-inducing medium for bone cells.
- the medium (Cambrex Bio Science, Sanko Junyaku, product number PT-3004) was used.
- Prech chondrocyte differentiation medium (manufactured by Cambrex Bio Science, Sanko Junyaku Co., Ltd., product number PT-4121) was used.
- NOG mice (N0D / SCID / ⁇ c nu11 ) mice (Laboratory of Laboratory Animal Research, Kawasaki City) were injected intraperitoneally with 350 IX 1 phosphate buffer (Sigma) containing 10% pentobarbital (Dainippon Pharmaceutical). Anesthetized. About 5 ⁇ 10 4 DP / Lin ⁇ and DP / Lin ⁇ separated as described above were injected into each uterine horn of a NOG mouse using a 29 gauge needle, and then reared for about 4 to 5 weeks. From 4 to 5 weeks after the transplantation, NOG mice after transplantation were divided into three groups and the kinetic analysis of stem cells in vivo was performed.
- the first group transplanted two tablets of Estrogen (E 2 ) sustained-release Perez® (Innovative Research of America, Florida, USA) to create a highly estrogenic environment. Then the second group did nothing. Finally, the third group was mated with male mice and analyzed for 18.5 days of gestation.
- Estrogen E 2
- Perez® Innovative Research of America, Florida, USA
- the uterus was removed, embedded in Tissue-Tek OCT compound (Sakura Finetech, Calif., USA), frozen, and then sliced continuously at a thickness of 6 m using a cryostat (Leica Microsystems, Germany, Wetzlar). For the frozen section obtained,
- the cells were permeabilized with a phosphate buffer containing 0.2% Triton®-100 for 10 minutes and then immersed in a 10% ushi serum albumin solution for 30 minutes for blocking treatment. Subsequently, the sections subjected to these treatments are a-smooth muscle, which is a marker of uterine smooth muscle. After reacting with an antibody against act in (a SMA) (clone 1A4, 200-fold dilution, DAKO Cytomatio, Denmark) at 4 ° C overnight, Alexa Fluor 488 (for green fluorescence) labeled secondary antibody (Molecular Primary antibodies were detected using Probes, Oregon, USA (1000-fold dilution, 37 ° C, 1 hour).
- a viraentin antibody (clone V9) that reacts only with human cells directly labeled with Cy3 (Sigma_Aldrich), a red fluorescent dye, and fluorescent double staining was performed. Furthermore, the sections were counterstained with the nuclear stain TOTO-3 (Molecular Probes). The sections after each staining were examined with a TCS SP2 confocal microscope (Leica Microsystems).
- the eclampsia transplanted with DP / Lin_ is derived from vimentin-positive, ie, human (red), and a SMA-positive cell (green) morphologically. A muscle tissue (yellow) appeared.
- the human-derived tissue seen in the above-mentioned DP / Lin- is not observed, and there are human-derived cells as shown in Fig. 7. (Red), they were distributed in the interstices of mouse smooth muscle tissue (green).
- each isolated cell fraction was cultured in a culture dish at a low cell density of 200 cel ls / cm 2 and analyzed for colony forming ability.
- the culture dish was scraped with a 29G needle so that the behavior of each cultured cell could be grasped.
- a fibroid isolated from a human uterus is cut into small pieces of approximately 2 mm 3 with scissors.
- the above dispersed single myometrial cell population was mixed with Hank's equilibration buffer containing 2% fetal urine serum, 10 mM HEPES, and 1% penicillin and streptomycin (without lucium and magnesium, HBSS + ) was suspended at a concentration of 2 ⁇ 10 6 , a fluorescent-labeled antibody was added, and the mixture was reacted at 4 ° C. for 30 minutes. Subsequently, the mixture was centrifuged at 4 ° C, suspended in 2 ml of the above Hanks solution, and stained with Propidium lodide (PI) for selection of dead cells. The fluorescently labeled antibody used in Example 1 was used.
- Hank's equilibration buffer containing 2% fetal urine serum, 10 mM HEPES, and 1% penicillin and streptomycin (without lucium and magnesium, HBSS + ) was suspended at a concentration of 2 ⁇ 10 6 , a fluorescent-labeled antibody was added, and
- PI live cells
- CD45 negative and FSC Forward scatter; indicating cell size
- 150-500 cells can be divided into two-dimensional cell populations by flow cytometry based on fluorescence intensity Expanded to.
- the stained dispersed cells were analyzed using flow cytometry (FACS Vantage SE, Becton Dickinson) and analysis software (Cel-Quest, Becton Dickinson). Expression analysis of the differentiation marker gene of the fractionated cells was performed in the same manner as in Example 1. Further examples
- Figure 9 shows the cell distribution.
- Fig. 9A shows the cell distribution of the entire cell population.
- Fig. 9 B, C and D show DP (Double positive; CD49f (+) CD34 (+)) fractions, respectively.
- CD49f (-) CD34 (+) The cell distribution of each fraction and CD34 (_) fraction is shown.
- the horizontal axis shows the strength of CD49f, and the vertical axis shows the strength of CD34.
- DP (Double positive) fraction was 9.8%
- 49f (-) 34 (+) fraction was 13.7%
- 34 (-) fraction was 43.8%. From this, the DP (CD49f (+) CD34 (+)) fraction was collected.
- Fig. 10 shows the cell distribution of the cell subfractions using CD31 expression in the DP fraction as an index.
- the DP fraction could be further divided into two subfractions (DP 31+ and DP 31-) depending on the presence or absence of CD31 expression.
- Fig. 1 OA shows the cell distribution of the entire cell population
- Fig. 10B shows the cell fraction of the DP fraction.
- FIG. 10C shows the expression pattern of CD31 in the DP fraction
- FIG. 10D shows the cell distribution in the CD31 (+) fraction
- FIG. 10E shows the cell distribution in the CD31 (_) fraction.
- PI (-) cells in the single myometrial cell population 3.6% of CD31 positive cells were present and 3.7% of CD31 negative cells were present.
- Figure 11 shows the results of differential marker gene expression analysis in the DP fraction, CD49f (-) CD34 (+) fraction, and CD34 (-) fraction.
- the DP fraction had lower expression levels of ERa, ER / 3 and smooth muscle differentiation markers than the other fractions.
- ABCG2 was strongly expressed.
- Figure 12 shows the state of colony formation on day 1 (A), day 7 (B), day 14 (C), and day 21 (D) of cells in the DP fraction.
- Figure 12 2E and F show the state of the growing colonies.
- Figure 13 shows DP fraction, CD49f (-) CD34 (+) fraction, CD34 (_) fraction, CD31 (+) sub-fraction (DP 31+) and DP fraction in DP fraction. Shows the colony-forming ability of the CD31 (-) subfraction (DP 31_). As shown in the figure, the DP fraction had higher colony-forming ability compared to other fractions (CD49f ( ⁇ ) CD34 (+) fraction, CD34 (_) fraction). In addition, there was no difference in colony forming ability between the CD31 (+) subfraction and the CD31 ( ⁇ ) subfraction in the DP fraction.
- Figure 14 shows the results of transplanting the DP fraction into the uterus of severely immunodeficient mice.
- tissue that is vimentin-positive, ie, human-derived (red) and c SMA-positive cells (green) and morphologically uterine smooth muscle (yellow) Appeared As shown in the figure, in the uterus transplanted with the DP fraction, tissue that is vimentin-positive, ie, human-derived (red) and c SMA-positive cells (green) and morphologically uterine smooth muscle (yellow) Appeared. This indicates that the cells of the DP fraction have the ability to build myometrial tissue.
- DP / Lin- and CD45 which are negative for CD31, CD45 and G1 ycophor in A of the present invention, and positive for CD34 and CD49f, are negative for CD34 and DP / Lin- and DP are uterine muscles because DP, which is positive for CD49f, has tissue stem cell characteristics such as 1) undifferentiated state, 2) pluripotency, 3) self-organization ability. This was the first in the world to succeed in the isolation of myometrial tissue stem cells.
- the isolated DP / Lin- and DP can be used to analyze the pathogenesis of the myometrium, the cell mechanism responsible for the growth / retraction of the myometrium during pregnancy / parturition, and the function of the myometrium, as well as the pathogenesis It will be a useful biological resource for drug development.
- DP / Lin- cells and DP cells are also expected to be clinically applied as cell materials in the treatment of other organs.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200980121912.1A CN102057037B (zh) | 2008-04-11 | 2009-04-13 | 平滑肌干细胞的分离方法 |
| JP2010507301A JP5726518B2 (ja) | 2008-04-11 | 2009-04-13 | 平滑筋幹細胞の単離方法 |
| US12/937,305 US8747838B2 (en) | 2008-04-11 | 2009-04-13 | Method for isolating smooth muscle stem cells |
| EP09729768A EP2272948A4 (en) | 2008-04-11 | 2009-04-13 | METHOD OF INSULATING A SMOOTH MUSCLE STEM CELL |
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| JP2008103867 | 2008-04-11 | ||
| JP2008-103867 | 2008-04-11 |
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| US (1) | US8747838B2 (ja) |
| EP (1) | EP2272948A4 (ja) |
| JP (1) | JP5726518B2 (ja) |
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| WO2012039097A1 (ja) * | 2010-09-22 | 2012-03-29 | シスメックス株式会社 | 細胞分析装置 |
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| US20170247660A1 (en) * | 2014-09-18 | 2017-08-31 | National Health Research Institutes | Progenitor cells, method for preparation thereof and uses thereof |
| EP3423067B1 (en) | 2016-03-04 | 2025-07-23 | The Board of Trustees of the Leland Stanford Junior University | Inhibitors of 15-hydroxyprostaglandin dehydrogenase for muscle regeneration |
| WO2018187298A1 (en) | 2017-04-04 | 2018-10-11 | The Board Of Trustees Of The Leland Stanford Junior University | Preparation, expansion, and uses of adult pluripotent stem cells |
| WO2018227138A1 (en) | 2017-06-09 | 2018-12-13 | The Board Of Trustees Of The Leland Stanford Junior University | Compositions and methods for preventing or treating muscle conditions |
| CN112739208A (zh) | 2018-09-21 | 2021-04-30 | 艾普斯丹医疗公司 | 人类多能成体干细胞 |
| CN116718768A (zh) * | 2023-05-08 | 2023-09-08 | 宁波希诺赛生物科技有限公司 | 一种区分羊膜间充质干细胞和上皮细胞的试剂盒及方法 |
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| JP2007202435A (ja) * | 2006-01-31 | 2007-08-16 | Keio Gijuku | 平滑筋幹細胞 |
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| US8067230B2 (en) | 2004-05-14 | 2011-11-29 | New York University | Prostatic stem cells, isolation and uses |
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| JP2007202435A (ja) * | 2006-01-31 | 2007-08-16 | Keio Gijuku | 平滑筋幹細胞 |
Non-Patent Citations (7)
| Title |
|---|
| MASANORI ONO ET AL.: "Atarashii Hoho de Tanri sareta Shikyu Heikatsukin Kansaibo no Ninshin Shikyu Remodeling ni Okeru Yakuwari", ACTA OBSTETRICA ET GYNAECOLOGIA JAPONICA, vol. 61, no. 2, 1 February 2009 (2009-02-01), pages 428 - ABS.Y-6, XP008144241 * |
| MASANORI ONO ET AL.: "Hyomen Kogen o Mochiita Hito Shikyu Heikatsukin Kansaibo no Atarashii Bunriho no Kaihatsu to sono Ninshin Shikyu Remodeling ni Okeru Yakuwari", REGENERATIVE MEDICINE, vol. 8, 5 February 2009 (2009-02-05), pages 187, XP001526450 * |
| MASANORI ONO ET AL.: "Shikyu Heikatsukin Kansaibo no Atarashii Bunriho to sono Kino Kaiseki", FOLIA ENDOCRINOLOGICA JAPONICA, vol. 84, no. 1, 20 April 2008 (2008-04-20), pages 221, XP008144242 * |
| ONO M ET AL.: "Side population in human uterine myometrium displays phenotypic and functional characteristics of myometrial stem cells.", PROC. NATL. ACAD. SCI. USA, vol. 104, 2007, pages 18700 - 18705, XP008144625 * |
| See also references of EP2272948A4 * |
| SZOTEK P P ET AL.: "Adult mouse myometrium label-retaining cells divide in response to gonadotropin stimulation.", STEM CELLS, vol. 25, 2007, pages 1317 - 1325, XP008144209 * |
| TETSUO MARUYAMA: "Hito Shisei Seishoku Kikan no Saisei to Kansaibo System", ACTA OBSTETRICA ET GYNAECOLOGIA JAPONICA, vol. 59, no. 8, 2007, pages 1644 - 1653, XP008144243 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012039097A1 (ja) * | 2010-09-22 | 2012-03-29 | シスメックス株式会社 | 細胞分析装置 |
| US8921099B2 (en) | 2010-09-22 | 2014-12-30 | Sysmex Corporation | Cell analyzer, cell processing apparatus, specimen preparing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2272948A1 (en) | 2011-01-12 |
| EP2272948A4 (en) | 2012-08-08 |
| CN102057037B (zh) | 2014-06-18 |
| US20110033428A1 (en) | 2011-02-10 |
| CN102057037A (zh) | 2011-05-11 |
| US8747838B2 (en) | 2014-06-10 |
| JPWO2009125877A1 (ja) | 2011-08-04 |
| JP5726518B2 (ja) | 2015-06-03 |
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