WO2012141032A1 - 単核球調製材、及び前記調製材を利用した単核球調製方法 - Google Patents
単核球調製材、及び前記調製材を利用した単核球調製方法 Download PDFInfo
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- WO2012141032A1 WO2012141032A1 PCT/JP2012/058977 JP2012058977W WO2012141032A1 WO 2012141032 A1 WO2012141032 A1 WO 2012141032A1 JP 2012058977 W JP2012058977 W JP 2012058977W WO 2012141032 A1 WO2012141032 A1 WO 2012141032A1
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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
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/0081—Purging biological preparations of unwanted cells
- C12N5/0087—Purging against subsets of blood cells, e.g. purging alloreactive T cells
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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
- 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
- C12N5/0645—Macrophages, e.g. Kuepfer cells in the liver; Monocytes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/49—Blood
- G01N33/491—Blood by separating the blood components
Definitions
- the present invention relates to a mononuclear cell preparation material for easily and efficiently preparing mononuclear cells, or a method for preparing mononuclear cells using the same. Furthermore, it is related with the mononuclear cell preparation material characterized by being able to reduce mixing of granulocytes, or the mononuclear cell preparation method using the same.
- mononuclear cell fraction transplantation therapy derived from bone marrow, umbilical cord blood or peripheral blood has been clinically applied in the area of ischemic diseases such as cerebral infarction, myocardial infarction and limb ischemia. It is believed that stem cells represented by mesenchymal stem cells, hematopoietic stem cells, and vascular endothelial progenitor cells contained in these mononuclear cell fractions can obtain a therapeutic effect by promoting angiogenesis and nerve regeneration.
- Taguchi et al. Can effectively treat Buerger's disease by transplanting a bone marrow mononuclear cell fraction containing CD34 positive cells to patients with Buerger's disease, which is a peripheral arterial occlusive disease, and promoting angiogenesis.
- Non-Patent Document 1 it has been reported that bone marrow-derived mononuclear cell transplantation treatment is effective for patients with acute ischemic diseases such as cerebral infarction or ischemic heart disease.
- Patent Document 1 As a method for removing granulocytes without using a centrifugal separation method, a method using a material on which granulocytes are selectively adsorbed, for example, a nonwoven fabric made of polyester has been reported (Patent Document 1).
- a material on which granulocytes are selectively adsorbed for example, a nonwoven fabric made of polyester
- Patent Document 1 a method using a material on which granulocytes are selectively adsorbed, for example, a nonwoven fabric made of polyester has been reported.
- the above removal method is used, granulocytes can be easily removed in a closed system, so that no special equipment is required, and it can be carried out in a general medical facility such as a municipal hospital. Also, the processing time is shorter than that of the density gradient centrifugation method.
- the non-woven fabric has a high porosity, the mononuclear spheres also remain in the non-woven fabric, resulting in a low mononuclear sphere
- Patent Document 2 a method for recovering necessary cells remaining in the nonwoven fabric by washing the nonwoven fabric with a physiological solution containing dextran has been reported.
- the recovery solution containing dextran has a high viscosity, and there is a concern that the cell viability is reduced.
- Non-patent Document 3 Korean Patent Application Laidation (SIG): WO 2011/001600A1
- Non-patent Document 3 there is no report of washing the nonwoven fabric with a physiological solution containing a divalent cation for the purpose of improving the mononuclear cell recovery rate while reducing the mixing of granulocytes.
- the present inventors have conducted various studies for the purpose of providing a mononuclear cell preparation material that can efficiently prepare mononuclear cells, or a mononuclear cell preparation method using the same.
- a washing solution that does not negatively affect cells after flowing blood is flowed to further remove mononuclear cells remaining in the voids of the nonwoven fabric.
- an object of the present invention is to provide a mononuclear cell preparation material capable of improving the mononuclear cell recovery rate without mixing granulocytes, and further to mononuclear cells capable of improving the mononuclear cell recovery rate. It is to provide a preparation method.
- the inventor of the present invention has prepared a mononuclear cell preparation material that efficiently prepares mononuclear cells while reducing the mixing of granulocytes, which has been difficult to realize easily, or a mononuclear cell using the same.
- intensive studies were conducted. As a result, it has been found that when a non-woven fabric having specific properties is used, mononuclear cells can be efficiently prepared while reducing the mixing of granulocytes. Furthermore, it has been found that when a divalent cation such as calcium ion or magnesium ion is added to the washing solution, not in the blood, mononuclear cells can be efficiently prepared while reducing the mixing of granulocytes. It came to complete.
- the present invention prepares mononuclear cells by removing granulocytes from blood containing a nonwoven fabric made of polyamide resin and having an air permeability of 10 mL / cm 2 / sec or more and 75 mL / cm 2 / sec or less.
- the present invention relates to a mononuclear sphere preparation material.
- the present invention also relates to a mononuclear cell preparation device obtained by filling a mononuclear cell preparation material into a container having an inlet and an outlet.
- the present invention also provides: (A) a step of capturing granulocytes in the mononuclear cell preparation device by introducing blood from the inlet side of the mononuclear cell preparation device and leading out from the outlet side; and (B) a washing solution containing the mononuclear cell preparation device. Recovering the mononuclear cells remaining in the mononuclear cell preparation device by introducing from the inlet side and leading out from the outlet side, The present invention relates to a method for preparing mononuclear cells.
- step (A) it is preferable to have a priming step before the step (A).
- a divalent cation is contained in the cleaning liquid.
- the divalent cation is preferably a calcium ion or a magnesium ion.
- the concentration of the divalent cation is preferably 500 mEq / L or less.
- the ratio of the mononuclear cell recovery rate to the granulocyte recovery rate contained in the mononuclear cell preparation passing liquid derived from the outlet side of the mononuclear cell preparation device is preferably 3.5 or more.
- the present invention it is possible to improve the mononuclear cell recovery rate while reducing the mixing of granulocytes, and it is possible to prepare a mononuclear cell fraction more efficiently.
- a necessary amount of mononuclear cell fraction can be efficiently prepared from a small amount of blood, and the burden on the donor patient is expected to be reduced.
- the present invention relates to a mononuclear cell preparation material for removing granulocytes from blood and collecting mononuclear cells, including a non-woven fabric made of polyamide resin.
- the blood here is not limited to peripheral blood, bone marrow, umbilical cord blood, menstrual blood, but also includes amniotic fluid, tissue extract, and the like, or those roughly separated, processed or cultured.
- the blood of various mammals such as a human, a cow, a mouse
- the mononuclear cells obtained using this mononuclear cell preparation are returned to mammals mainly as a treatment for ischemic diseases, that is, when used as a therapeutic agent for ischemic diseases.
- blood to which various anticoagulants are added as necessary can be used.
- compounds that can be added to blood heparin, low molecular weight heparin, fusan (nafamostat methyl acid), EDTA, ACD (acid-citrate-dextrose) solution, CPD (citrate-phosphate-dextrose) solution, CPDA (citrate-phosphate-dextrose) -Adeneine) liquid and the like.
- the blood used in the present invention is preferably within 48 hours after collection from the viewpoint of treatment of ischemic diseases and the like.
- granulocyte removal efficiency does not change so much, and blood in various storage states can be used as a target.
- mononuclear cells prepared with the mononuclear cell preparation material include monocytes and lymphocytes.
- Specific examples of granulocytes removed with the mononuclear cell preparation material include neutrophils, eosinophils, basophils, and immature cells thereof.
- the non-woven fabric refers to a cloth-like material in which fibers or a collection of fibers are chemically, thermally, or mechanically bonded regardless of knitting.
- a case where a certain shape is maintained by friction caused by contact between fibers or fibers, or by entanglement with each other also corresponds to mechanical coupling.
- the mononuclear sphere preparation material includes a non-woven fabric made of a polyamide resin, and it is particularly preferable that the mononuclear sphere preparation material contains a polyamide resin as a main component (containing 50% by weight or more).
- the type of polyamide resin such as nylon or aramid is not particularly limited, but nylon resins such as nylon 6, nylon 66, nylon 11, nylon 12, and nylon 46 that can be easily formed into a nonwoven fabric are preferable.
- nylon 6 is particularly preferred from the viewpoint of granulocyte removal efficiency. These materials are not limited to being used alone, and may be combined, mixed and fused as necessary.
- molecules having affinity for specific cells such as proteins, peptides, amino acids, and sugars may be immobilized on the fibers constituting the nonwoven fabric.
- polyamide resins By using these polyamide resins, granulocytes can be prevented from flowing out and mixed into the solution passing through the mononuclear cell preparation device when the cleaning solution is introduced, and with a high recovery rate while reducing the mixing of granulocytes. It becomes possible to prepare mononuclear cells efficiently.
- a nonwoven fabric having an air permeability of 10 mL / cm 2 / sec or more and 75 mL / cm 2 / sec or less can be used.
- the air permeability is preferably 15 mL / cm 2 / sec or more and 70 mL / cm 2 / sec or less, more preferably 20 mL / cm 2 / sec or more and 65 mL / cm 2 / sec or less. If it is less than 10 mL / cm 2 / sec, the opening of the nonwoven fabric is too small to allow the mononuclear spheres to pass through the nonwoven fabric, and the mononuclear cell recovery rate of the solution that has passed through the mononuclear sphere preparation device tends to decrease. There is.
- the air permeability is a numerical value measured by a Frazier type air permeability tester, and is measured by the following method. First, the sample is sandwiched between the clamps of the tester, and the suction fan is adjusted so that the inclined barometer exhibits a pressure of 125 Pa. Next, from the pressure indicated by the vertical barometer at that time and the type of air hole used, the amount of air passing through the test piece is obtained from a table attached to the tester.
- the fiber diameter of the fiber which comprises a nonwoven fabric is not specifically limited, It is preferable that it is 25 micrometers or less. From the viewpoint of granulocyte removal efficiency, it is more preferably 20 ⁇ m or less, and further preferably 16 ⁇ m or less.
- the fiber diameter is the width of the fiber in the direction perpendicular to the fiber axis.
- the fiber diameter can be obtained by taking a photograph of a separating material made of a nonwoven fabric with a scanning electron microscope and averaging the calculated values of the fiber diameter obtained from the scale described in the photograph.
- the fiber diameter is preferably an average value of 50 or more, and more preferably an average value of 100 or more.
- the fiber diameter is calculated excluding the data.
- the fiber diameter is calculated excluding the data.
- the fiber diameter is calculated excluding the data.
- the smaller the fiber diameter the greater the influence on granule sphere capturing efficiency. Calculate the thin fiber diameter as the fiber diameter of the nonwoven fabric.
- the mononuclear sphere preparation material As the usage form of the mononuclear sphere preparation material, it is possible to use the mononuclear sphere preparation material without putting it in the container. However, in consideration of practicality, the mononuclear sphere preparation material has a blood inlet and an outlet. It is preferable to use it in a separate container. In addition, the mononuclear cell preparation material can treat blood in a flat plate shape cut into an appropriate size or a roll shape.
- the container When the mononuclear sphere preparation material is filled into a container having an inlet and an outlet, the container can be compressed and filled in the container, or the container can be filled without being compressed.
- the mononuclear sphere preparation material it is preferable to cut the mononuclear sphere preparation material made of a nonwoven fabric into an appropriate size and use it in a single layer or a laminated state in a thickness of about 1 mm to 200 mm.
- the thickness is more preferably 2 mm to 150 mm, more preferably 3 mm to 100 mm, from the viewpoint of granulocyte capture efficiency.
- the granulocyte preparation material can be wound into a roll and filled into a container.
- blood cells When used in the form of a roll, blood cells may be separated by processing blood from the inside to the outside of the roll, or conversely, blood may be processed from the outside to the inside of the roll. it can.
- the form, size, and material of the container filled with the mononuclear sphere preparation material are not particularly limited.
- Examples of the form of the container include a sphere, a container, a cassette, a bag, a tube, and a column.
- Preferable specific examples include, for example, a translucent cylindrical container having a diameter of about 10 mm to 50 mm and a height of about 1 mm to 50 mm; a rectangle or square having a length of about 10 mm to 50 mm and a thickness of about 4 mm having a thickness of about 1 mm to 50 mm.
- Examples include prismatic containers, but the present invention is not limited to these.
- the container can be made using any structural material.
- the structural material constituting the container include non-reactive polymers, biocompatible metals, alloys, and glass.
- Non-reactive polymers include acrylonitrile polymers such as acrylonitrile butadiene styrene terpolymers; polytetrafluoroethylene, polychlorotrifluoroethylene, copolymers of tetrafluoroethylene and hexafluoropropylene, halogenated polymers such as polyvinyl chloride; polyamides and polyimides , Polysulfone, polycarbonate, polyethylene, polypropylene, polyvinyl chloride acrylic copolymer, polycarbonate acrylonitrile butadiene styrene, polystyrene, polymethylpentene and the like.
- Stainless steel, titanium, platinum, tantalum, gold, and their alloys, and gold-plated alloy iron, platinum-plated alloy iron, cobalt-chromium alloy, titanium nitride Examples include coated stainless steel.
- polypropylene, polyvinyl chloride, polyethylene, polyimide, polycarbonate, polysulfone, polymethylpentene and the like are particularly preferable from the viewpoint of resistance to sterilized bacteria.
- the method for preparing mononuclear cells according to the present invention includes (A) a step of capturing granulocytes in the mononuclear cell preparation device by introducing blood from the inlet side of the mononuclear cell preparation device and extracting it from the outlet side, And (B) recovering the mononuclear cells remaining in the mononuclear cell preparation device by introducing the cleaning liquid from the inlet side of the mononuclear cell preparation device and extracting it from the outlet side.
- Examples of the direction in which the blood and the cleaning liquid are passed include gravity downward, gravity upward, and a horizontal direction. It is preferable that the blood is distributed in the mononuclear cell separator uniformly in a gravity downward or gravity upward direction.
- the speed and method for passing blood are not particularly limited.
- a method for passing blood using gravity a method for passing a liquid at a constant flow rate using a roller clamp or a syringe pump, or applying high pressure.
- a method of passing the liquid at a constant flow rate using a syringe pump is preferable. More preferably, the liquid is passed at a flow rate of 2.5 mL / min or less using a syringe pump. This causes blood to slowly come into contact with the nonwoven fabric, so that more granulocytes can be captured by the nonwoven fabric.
- priming is performed before introducing blood into the mononuclear cell preparation device in order to remove air in the mononuclear cell preparation device, improve granulocyte removal efficiency, and secure a blood flow path. It is preferable that a step of introducing a liquid is included.
- the priming solution is not particularly limited, but physiological saline and buffer solution are preferable. More preferably, it is the same as the cleaning liquid from the viewpoint of simplification of the circuit system and operability.
- the amount of the priming solution is about 1 to 100 times that of the container filled with the mononuclear sphere preparation material, which is practical and preferable.
- washing solution for example, a physiological saline solution, a liquid containing a divalent cation, a saccharide, serum, a protein, a buffer solution, a medium, plasma, a liquid containing them, and the like can be used effectively.
- a liquid containing divalent cations as a washing liquid improves the adhesion of granulocytes to the nonwoven fabric, and efficiently reduces the mixing of granulocytes.
- Mononuclear cells can be prepared.
- the divalent cation calcium ion, magnesium ion, manganese ion, zinc ion, nickel ion and barium ion are preferable from the viewpoint of granulocyte removal efficiency. Calcium ions and magnesium ions, which have been used as injection preparations, are more preferable.
- the concentration of the divalent cation is preferably 500 mEq / L or less. More preferably, it is 360 mEq / L or less, and further preferably 180 mEq / L or less. If it exceeds 500 mEq / L, the negative effect on the cells cannot be ignored. Note that mEq / L is the mmol / L multiplied by the ionic valence.
- washing solution a physiological saline containing calcium chloride or magnesium sulfate, Ringer's solution, or the like that does not have a negative effect on cells and has been used for medical purposes is preferable.
- the present invention it is possible to collect the mononuclear cells remaining in the mononuclear cell separation apparatus by introducing the washing liquid after passing the blood. Since the porosity of nonwoven fabrics is generally high, the amount of blood remaining in the mononuclear cell separation device with respect to the treatment amount accounts for a significant proportion, especially when the amount of blood treatment is small. It is very important to collect mononuclear cells. However, on the other hand, when the cleaning solution is introduced, in addition to the mononuclear cells remaining in the mononuclear cell separator, usually granulocytes also flow out.
- the granulocytes trapped in the mononuclear cell preparation device are not allowed to flow out, but remain in the mononuclear cell separator. Nuclear spheres can be recovered.
- the amount of blood treatment is preferably 1 mL to 100 mL, more preferably 2 mL to 80 mL, and even more preferably 3 mL to 60 mL in view of therapeutic uses such as ischemic diseases.
- the treatment amount of the cleaning liquid is preferably at least 1 and less than 20 times the volume of the mononuclear cell preparation apparatus. It is more preferably 2 times or more and less than 15 times, and further preferably 3 times or more and less than 10 times. If it is less than 1 time, the blood remaining in the mononuclear cell preparation device cannot be completely replaced, and the mononuclear cell recovery rate of the solution that has passed through the mononuclear cell preparation device tends to decrease. On the other hand, when it exceeds 20 times, the collected blood tends to be diluted too much.
- the mononuclear cell preparation device passage solution obtained by the present invention is returned to a mammal mainly for therapeutic use such as ischemic disease, that is, in the case of using as a therapeutic agent for ischemic disease, It is desirable to prepare mononuclear cells aseptically using a circuit.
- circuits when a circuit is used, various circuits can be formed.
- means for storing blood and a washing solution is disposed on the inlet side of the mononuclear cell preparation apparatus.
- a means for storing the blood that has passed through the mononuclear cell preparation device and the washing solution is disposed on the outlet side. However, if necessary, blood and a washing solution can be collected and mixed after being treated separately.
- means for storing the priming solution and means for storing the priming solution that has passed through the mononuclear cell preparation device are respectively disposed on the inlet side and the outlet side of the mononuclear cell preparation device. Depending on the direction in which the priming solution flows, it is changed whether it is arranged on the inlet side or the outlet side. Further, a circuit may be provided separately from the means for storing blood and cleaning liquid, or these circuits can be used in place of them.
- FIG. 1 shows an example in which all of the above-described means are provided, and in particular, circuits leading to these means are individually provided. It is assumed that the priming solution flows from the outlet side of the mononuclear cell preparation device toward the inlet side. In each of these means, each stopcock is opened and closed in accordance with each step of the method for preparing mononuclear cells of the present invention.
- the means for containing blood and the means for containing the solution that has passed through the mononuclear cell preparation device are preferably bag-shaped in terms of ease of handling, but are not limited thereto.
- the storage means is connected by a tube or the like, and each tube is attached with a means capable of controlling the flow and flow rate of the solution, such as a clamp, a two-way stopcock, a three-way stopcock, and a roller clamp. From this point, it is preferable.
- the mononuclear cell recovery rate ratio can be calculated by dividing the mononuclear cell recovery rate by the granulocyte recovery rate. The higher this value, the higher the granulocyte removal performance.
- the ratio of the mononuclear cell recovery rate to the granulocyte recovery rate is preferably 3.5 or more. 4.1 or more is more preferable, and 4.5 or more is more preferable.
- Example 1 40 pieces of nylon 6 non-woven fabric (air permeability 40 mL / cm 2 / sec, thickness 0.30 mm, fiber diameter 16.0 ⁇ m) laminated in a polycarbonate container having a height (inner dimensions) of 7 mm and a diameter (inner diameter) of 18 mm (Nonwoven fabric total thickness 12 mm) to prepare a mononuclear cell preparation device.
- 45 mL of physiological saline as a priming solution was put into a 50 mL syringe, the syringe and the inlet side of the mononuclear cell preparation device were connected via a female lock connector, and 45 mL of physiological saline was passed through by slowly pushing the syringe blanker. .
- porcine bone marrow fluid anticoagulated with 50 IU / mL sodium heparin and passed through a 70 ⁇ m cell strainer to remove aggregates was placed in a 20 mL syringe. And connected to a syringe pump. 5 mL of porcine bone marrow fluid was introduced into the mononuclear cell preparation device over 8 minutes at a flow rate of 0.625 mL / min, and the mononuclear cell preparation device passage liquid derived from the outlet side was stored in a collection container.
- the obtained mononuclear cell preparation apparatus passing solution 15 mL and the white blood cell concentration of the blood before the treatment were measured with a blood cell counter (manufactured by Sysmex Corporation, K-4500).
- the blood before treatment and the mononuclear cell preparation apparatus passage solution were hemolyzed with FACS Pharmlyse, and then the abundance ratio of granulocytes and mononuclear cells was measured with a flow cytometer (BD, manufactured by FACSCanto). From the obtained leukocyte concentration and the abundance ratio of granulocytes and mononuclear cells, the total number of mononuclear cells was determined by the following formula.
- the total number of granulocytes in the mononuclear cell preparation device passage liquid was calculated in the same manner, and the granulocyte recovery rate [%] was calculated as (number of granulocytes in the mononuclear cell preparation device passage liquid) / (granulocytes of blood before treatment) Number) ⁇ 100. As a result, the granulocyte recovery rate was 49%. Further, from the mononuclear cell recovery rate and the granulocyte recovery rate, the mononuclear cell recovery rate ratio was calculated as (mononuclear cell recovery rate) / (granulocyte recovery rate). As a result, the mononuclear cell recovery rate ratio was 1.5. The results are shown in Table 1.
- Example 2 In a container similar to Example 1, 24 sheets of nylon 6 nonwoven fabric (air permeability 20 mL / cm 2 / sec, thickness 0.46 mm, fiber diameter 5.0 ⁇ m) were filled in a laminated state (nonwoven fabric total thickness 11 mm), First, 45 mL of physiological saline was manually passed from the inlet side using a syringe. Next, 5 mL of heparin anticoagulated fresh porcine bone marrow was passed at a flow rate of 0.625 mL / min. Subsequently, 10 mL of physiological saline was introduced from the inlet side of the mononuclear cell preparation device at a flow rate of 0.625 mL.
- the mononuclear cell recovery rate, granulocyte recovery rate, and mononuclear cell recovery rate ratio of 15 mL of the mononuclear cell preparation apparatus passage liquid obtained in the same manner as in Example 1 were calculated, and the results are shown in Table 1.
- Example 3 A container similar to Example 1 was filled with 16 nylon 6 nonwoven fabrics (air permeability 20 mL / cm 2 / sec, thickness 0.46 mm, fiber diameter 5.0 ⁇ m) in a laminated state (nonwoven fabric total thickness 7.4 mm). First, 45 mL of physiological saline was manually passed from the inlet side using a syringe. Next, 5 mL of heparin anticoagulated fresh porcine bone marrow was passed at a flow rate of 0.625 mL / min. Subsequently, 10 mL of physiological saline was introduced from the inlet side of the mononuclear cell preparation device at a flow rate of 0.625 mL.
- the mononuclear cell recovery rate, granulocyte recovery rate, and mononuclear cell recovery rate ratio of 15 mL of the mononuclear cell preparation apparatus passage liquid obtained in the same manner as in Example 1 were calculated, and the results are shown in Table 1.
- Example 4 A container similar to Example 1 was filled with 16 nylon 6 nonwoven fabrics (air permeability 20 mL / cm 2 / sec, thickness 0.46 mm, fiber diameter 5.0 ⁇ m) in a laminated state (nonwoven fabric total thickness 7.4 mm). First, 45 mL of physiological saline was manually passed from the inlet side using a syringe. Next, 5 mL of heparin anticoagulated fresh porcine bone marrow was passed at a flow rate of 0.625 mL / min.
- Example 5 A container similar to Example 1 was filled with 16 nylon 6 nonwoven fabrics (air permeability 20 mL / cm 2 / sec, thickness 0.46 mm, fiber diameter 5.0 ⁇ m) in a laminated state (nonwoven fabric total thickness 7.4 mm). First, 45 mL of physiological saline was manually passed from the inlet side using a syringe. Next, 5 mL of heparin anticoagulated fresh porcine bone marrow was passed at a flow rate of 0.625 mL / min.
- Example 6 A container similar to Example 1 was filled with 16 nylon 6 nonwoven fabrics (air permeability 20 mL / cm 2 / sec, thickness 0.46 mm, fiber diameter 5.0 ⁇ m) in a laminated state (nonwoven fabric total thickness 7.4 mm). First, 45 mL of physiological saline was manually passed from the inlet side using a syringe. Next, magnesium sulfate was added to 5 mL of fresh heparin anticoagulated porcine bone marrow so that the final magnesium concentration was 34 mEq / L, and this was passed at a flow rate of 0.625 mL / min.
- Example 7 A container similar to Example 1 was filled with 40 nylon 6 nonwoven fabrics (air permeability 65 mL / cm 2 / sec, thickness 0.19 mm, fiber diameter 2.7 ⁇ m) in a laminated state (nonwoven fabric total thickness 7.6 mm). First, 45 mL of physiological saline was manually passed from the inlet side using a syringe. Next, 5 mL of heparin anticoagulated fresh porcine bone marrow was passed at a flow rate of 0.625 mL / min. Subsequently, 10 mL of physiological saline was introduced from the inlet side of the mononuclear cell preparation device at a flow rate of 0.625 mL.
- the mononuclear cell recovery rate, granulocyte recovery rate, and mononuclear cell recovery rate ratio of 15 mL of the mononuclear cell preparation apparatus passage liquid obtained in the same manner as in Example 1 were calculated, and the results are shown in Table 1.
- Example 1 A container similar to Example 1 was filled with 28 sheets of polypropylene nonwoven fabric (air permeability 33 mL / cm 2 / sec, thickness 0.43 mm, fiber diameter 5.7 ⁇ m) in a laminated state (nonwoven fabric total thickness 12 mm). 45 mL of physiological saline was manually passed from the inlet side using a syringe. Next, 5 mL of heparin anticoagulated fresh porcine bone marrow was passed at a flow rate of 0.625 mL / min. Subsequently, 10 mL of physiological saline was introduced from the inlet side of the mononuclear cell preparation device at a flow rate of 0.625 mL.
- the mononuclear cell recovery rate, granulocyte recovery rate, and mononuclear cell recovery rate ratio of 15 mL of the mononuclear cell preparation apparatus passage liquid obtained in the same manner as in Example 1 were calculated, and the results are shown in Table 1.
- Example 2 A container similar to Example 1 was filled with 20 sheets of polybutylene terephthalate nonwoven fabric (air permeability 36 mL / cm 2 / sec, thickness 0.61 mm, fiber diameter 4.6 ⁇ m) in a laminated state (total thickness of nonwoven fabric 12 mm). First, 45 mL of physiological saline was manually passed from the inlet side using a syringe. Next, 5 mL of heparin anticoagulated fresh porcine bone marrow was passed at a flow rate of 0.625 mL / min.
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Abstract
Description
(A)血液を、単核球調製装置の入口側より導入し出口側より導出することにより、顆粒球を単核球調製装置内に捕捉する工程、及び
(B)洗浄液を単核球調製装置の入口側より導入し出口側より導出することにより、単核球調製装置内に残留する単核球を回収する工程、
を有する、単核球調製方法に関する。
高さ(内寸)7mm、直径(内径)18mmのポリカーボネート製容器に、ナイロン6製不織布(通気度40mL/cm2/sec、厚さ0.30mm、繊維径16.0μm)を40枚積層状態で充填し(不織布総厚み12mm)、単核球調製装置を作成した。次に50mLシリンジにプライミング溶液として生理食塩水45mLを入れ、メスロックコネクターを介してシリンジと単核球調製装置の入口側を接続し、ゆっくりシリンジのブランジャーを押して生理食塩水45mLを通液した。続いて、50IU/mLヘパリンナトリウムで抗凝固し70μmのセルストレーナーに通して凝集物を除去したブタ骨髄液5mLを20mLシリンジに入れ、ポアロンチューブを介してシリンジと単核球調製装置の入口側を接続し、シリンジポンプに取り付けた。ブタ骨髄液5mLを流速0.625mL/minで8分かけて単核球調製装置内に導入し、出口側より導出した単核球調製装置通過液を回収容器に収容した。最後に、20mLシリンジに洗浄液として生理食塩水10mLを入れ、ポアロンチューブを介してシリンジと単核球調製装置の入口側を接続し、シリンジポンプを用いて流速0.625mL/minで16分かけて単核球調製装置内に導入し、出口側より導出した単核球調製装置通過液を回収容器に収容した。
(処理前血液5mL中の総単核球数)=(処理前血液の白血球濃度)×(処理前血液における白血球中の単核球存在比率)×5[mL]
(単核球調製装置通過液15mL中の総単核球数)=(単核球調製装置通過液の白血球濃度)×(単核球調製装置通過液における白血球中の単核球存在比率)×15[mL]
これら処理前後の総単核球数より、単核球回収率[%]を(単核球調製装置通過液の単核球数)/(処理前血液の単核球数)×100として算出した。その結果、単核球回収率は74%であった。
さらに、単核球回収率及び顆粒球回収率より、単核球回収率比を、(単核球回収率)/(顆粒球回収率)として算出した。その結果、単核球回収率比は1.5であった。結果を表1に示した。
実施例1と同様の容器に、ナイロン6製不織布(通気度20mL/cm2/sec、厚さ0.46mm、繊維径5.0μm)24枚を積層状態で充填し(不織布総厚み11mm)、まず生理食塩水45mLを入口側よりシリンジを用いて手押しで通液した。次にヘパリン抗凝固の新鮮ブタ骨髄液5mLを流速0.625mL/minで通液した。続いて生理食塩水10mLを流速0.625mLで単核球調製装置入口側より導入した。実施例1と同様に得られた単核球調製装置通過液15mLの単核球回収率、顆粒球回収率、及び単核球回収率比を算出し、結果を表1に示した。
実施例1と同様の容器に、ナイロン6製不織布(通気度20mL/cm2/sec、厚さ0.46mm、繊維径5.0μm)16枚を積層状態で充填し(不織布総厚み7.4mm)、まず生理食塩水45mLを入口側よりシリンジを用いて手押しで通液した。次にヘパリン抗凝固の新鮮ブタ骨髄液5mLを流速0.625mL/minで通液した。続いて生理食塩水10mLを流速0.625mLで単核球調製装置入口側より導入した。実施例1と同様に得られた単核球調製装置通過液15mLの単核球回収率、顆粒球回収率、及び単核球回収率比を算出し、結果を表1に示した。
実施例1と同様の容器に、ナイロン6製不織布(通気度20mL/cm2/sec、厚さ0.46mm、繊維径5.0μm)16枚を積層状態で充填し(不織布総厚み7.4mm)、まず生理食塩水45mLを入口側よりシリンジを用いて手押しで通液した。次にヘパリン抗凝固の新鮮ブタ骨髄液5mLを流速0.625mL/minで通液した。続いて塩化カルシウム含有生理食塩水10mL(カルシウム濃度:36mEq/L)を流速0.625mLで単核球調製装置入口側より導入した。実施例1と同様に得られた単核球調製装置通過液15mLの単核球回収率、顆粒球回収率、及び単核球回収率比を算出し、結果を表1に示した。
実施例1と同様の容器に、ナイロン6製不織布(通気度20mL/cm2/sec、厚さ0.46mm、繊維径5.0μm)16枚を積層状態で充填し(不織布総厚み7.4mm)、まず生理食塩水45mLを入口側よりシリンジを用いて手押しで通液した。次にヘパリン抗凝固の新鮮ブタ骨髄液5mLを流速0.625mL/minで通液した。続いて硫酸マグネシウム含有生理食塩水10mL(マグネシウム濃度:34mEq/L)を流速0.625mLで単核球調製装置入口側より導入した。実施例1と同様に得られた単核球調製装置通過液15mLの単核球回収率、顆粒球回収率、及び単核球回収率比を算出し、結果を表1に示した。
実施例1と同様の容器に、ナイロン6製不織布(通気度20mL/cm2/sec、厚さ0.46mm、繊維径5.0μm)16枚を積層状態で充填し(不織布総厚み7.4mm)、まず生理食塩水45mLを入口側よりシリンジを用いて手押しで通液した。次にヘパリン抗凝固の新鮮ブタ骨髄液5mLに硫酸マグネシウムをマグネシウム終濃度が34mEq/Lになるよう添加し、これを流速0.625mL/minで通液した。続いて硫酸マグネシウム含有生理食塩水10mL(マグネシウム濃度:34mEq/L)を流速0.625mLで単核球調製装置入口側より導入した。実施例1と同様に得られた単核球調製装置通過液15mLの単核球回収率、顆粒球回収率、及び単核球回収率比を算出し、結果を表1に示した。
実施例1と同様の容器に、ナイロン6製不織布(通気度65mL/cm2/sec、厚さ0.19mm、繊維径2.7μm)40枚を積層状態で充填し(不織布総厚み7.6mm)、まず生理食塩水45mLを入口側よりシリンジを用いて手押しで通液した。次にヘパリン抗凝固の新鮮ブタ骨髄液5mLを流速0.625mL/minで通液した。続いて生理食塩水10mLを流速0.625mLで単核球調製装置入口側より導入した。実施例1と同様に得られた単核球調製装置通過液15mLの単核球回収率、顆粒球回収率、及び単核球回収率比を算出し、結果を表1に示した。
実施例1と同様の容器に、ポリプロピレン製不織布(通気度33mL/cm2/sec、厚さ0.43mm、繊維径5.7μm)28枚を積層状態で充填し(不織布総厚み12mm)、まず生理食塩水45mLを入口側よりシリンジを用いて手押しで通液した。次にヘパリン抗凝固の新鮮ブタ骨髄液5mLを流速0.625mL/minで通液した。続いて生理食塩水10mLを流速0.625mLで単核球調製装置入口側より導入した。実施例1と同様に得られた単核球調製装置通過液15mLの単核球回収率、顆粒球回収率、及び単核球回収率比を算出し、結果を表1に示した。
実施例1と同様の容器に、ポリブチレンテレフタラート製不織布(通気度36mL/cm2/sec、厚さ0.61mm、繊維径4.6μm)20枚を積層状態で充填し(不織布総厚み12mm)、まず生理食塩水45mLを入口側よりシリンジを用いて手押しで通液した。次にヘパリン抗凝固の新鮮ブタ骨髄液5mLを流速0.625mL/minで通液した。続いて生理食塩水10mLを流速0.625mLで単核球調製装置入口側より導入した。実施例1と同様に得られた単核球調製装置通過液15mLの単核球回収率、顆粒球回収率、及び単核球回収率比を算出し、結果を表1に示した。
ヘパリン抗凝固の新鮮ブタ骨髄液2mLを、生理食塩液2mLと混合して希釈した。次に、容量15mLの遠沈管に、Ficoll Paque-Plus(GEヘルスケア・ジャパン(株)製)溶液を3mL添加し、該Ficoll溶液の上層に、上述の通り希釈した骨髄液を重層した。遠心分離機にて、回転数1400rpmで30分間遠心分離することにより、得られた単核球画分層を回収した。Ficoll溶液を除去する目的で、回収した単核球画分層に生理食塩液を10mL添加し、遠心分離機にて、回転数1500rpmで10分間遠心分離した。上清を除いた後、再度生理食塩液を10mL添加し、回転数1500rpmで10分間遠心分離した。再び上清を除き、生理食塩水を液量が1mLになるように加えた。実施例1と同様の方法で回収液の単核球回収率、顆粒球回収率、及び単核球回収率比を算出し、結果を表1に示した。
2 単核球調製材が充填された容器(単核球調製装置)
3 単核球調製装置を通過したプライミング溶液を収容する手段
4 血液を収容するための手段
5 洗浄液を収容するための手段
6 プライミング溶液を収容する手段
7 単核球調製装置を通過した血液及び洗浄液を収容する手段
8~10 三方活栓
11~19 回路
Claims (8)
- ポリアミド樹脂で作製された、通気度が10mL/cm2/sec以上、かつ75mL/cm2/sec以下である不織布を含む、
血液から顆粒球を除去し単核球を調製するための単核球調製材。 - 請求項1に記載の単核球調製材を、入口と出口を有する容器に充填して得られる単核球調製装置。
- (A)血液を、請求項2に記載の単核球調製装置の入口側より導入し出口側より導出することにより、顆粒球を単核球調製装置内に捕捉する工程、及び
(B)洗浄液を単核球調製装置の入口側より導入し出口側より導出することにより、単核球調製装置内に残留する単核球を回収する工程、
を有する、単核球調製方法。 - さらに、前記工程(A)の前に、プライミングする工程を有する、請求項3に記載の単核球調製方法。
- 洗浄液に2価カチオンが含まれることを特徴とする、請求項3又は4に記載の単核球調製方法。
- 2価カチオンが、カルシウムイオン又はマグネシウムイオンである、
請求項5に記載の単核球調製方法。 - 2価カチオンの濃度が500mEq/L以下である、請求項5又は6に記載の単核球調製方法。
- 単核球調製装置の出口側より導出した単核球調製通過液に含まれる、顆粒球回収率に対する単核球回収率比が、3.5以上であることを特徴とする、請求項5から7のいずれか一項に記載の単核球調製方法。
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| US14/110,980 US20140072954A1 (en) | 2011-04-11 | 2012-04-02 | Mononuclear cell preparation material and mononuclear cell preparation method using same |
| EP12770825.3A EP2698422B1 (en) | 2011-04-11 | 2012-04-02 | Mononuclear cell preparation material and mononuclear cell preparation method using same |
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| JP2015198595A (ja) * | 2014-04-07 | 2015-11-12 | 日立化成株式会社 | 細胞捕捉デバイス及び細胞捕捉装置 |
| JP2016501526A (ja) * | 2012-12-06 | 2016-01-21 | エンリヴェックス セラピューティクス リミテッド | 治療用アポトーシス細胞調製物、その製造方法及びその使用 |
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| JP2019024426A (ja) * | 2017-07-31 | 2019-02-21 | 株式会社カネカ | 細胞分離装置、及び単核球を含む細胞含有液を取得する方法 |
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| WO2016121295A1 (ja) * | 2015-01-30 | 2016-08-04 | 東洋製罐グループホールディングス株式会社 | 細胞培養における複数容器間の送液方法 |
| JP2016140298A (ja) * | 2015-01-30 | 2016-08-08 | 東洋製罐グループホールディングス株式会社 | 細胞培養における複数容器間の送液方法 |
| JP2019024426A (ja) * | 2017-07-31 | 2019-02-21 | 株式会社カネカ | 細胞分離装置、及び単核球を含む細胞含有液を取得する方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5975985B2 (ja) | 2016-08-23 |
| EP2698422A4 (en) | 2014-11-19 |
| EP2698422B1 (en) | 2016-06-22 |
| US20140072954A1 (en) | 2014-03-13 |
| JPWO2012141032A1 (ja) | 2014-07-28 |
| EP2698422A1 (en) | 2014-02-19 |
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