WO2002095408A1 - Procede de production d'un support sur lequel est immobilisee une substance physiologiquement active et procede de production dudit support, substance physiologiquement active immobilisee, procede d'analyse de constituants dans un echantillon et kit d'analyse de constituants dans un echantillon - Google Patents
Procede de production d'un support sur lequel est immobilisee une substance physiologiquement active et procede de production dudit support, substance physiologiquement active immobilisee, procede d'analyse de constituants dans un echantillon et kit d'analyse de constituants dans un echantillon Download PDFInfo
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- WO2002095408A1 WO2002095408A1 PCT/JP2002/004661 JP0204661W WO02095408A1 WO 2002095408 A1 WO2002095408 A1 WO 2002095408A1 JP 0204661 W JP0204661 W JP 0204661W WO 02095408 A1 WO02095408 A1 WO 02095408A1
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Classifications
-
- 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
- G01N33/50—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
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/551—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being inorganic
- G01N33/553—Metal or metal coated
-
- 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
- G01N33/50—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
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/551—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being inorganic
Definitions
- the present invention relates to a physiologically active substance-immobilized carrier, a method for producing the carrier, a physiologically active substance immobilized on a carrier, a method for analyzing a target component in a sample using the carrier, and a sample containing the carrier.
- the present invention provides a kit for analyzing a target component therein.
- the physiologically active substance refers to a substance that exerts an action specific to a living body, or a protein or peptide derived from a living body.
- physiologically active substances such as enzymes and antibodies have high selectivity for specific substances, and are used to detect specific biological components with high accuracy by utilizing such properties.
- an antibody that reacts with a target substance is immobilized on an appropriate solid phase (carrier), the sample is contacted, and the target substance is measured by reacting with a labeled antibody that specifically binds to the target substance, It is frequently used in immunoassays.
- a physiologically active substance such as a protein or a carbohydrate on a carrier firmly and efficiently due to various surface charges of the protein or the carbohydrate.
- IgE is used to generate IgE that specifically binds to the allergen that causes the allergy.
- Test methods have been used, and a method has been implemented in which IgE in patient serum is reacted with an allergen and detected with a labeled anti-IgE antibody.
- the enzyme is further reacted with an anti-human IgE antibody labeled with an enzyme.
- a method for generating a human IgE antibody-IgE-enzyme-labeled anti-human IgE antibody complex and detecting the label in the complex Methodhods in enzymology Vol. 184 501-507, 1990; A method of binding to filter paper, reacting it with serum, and detecting with an anti-IgE antibody labeled with a firefly-derived luciferase (Japanese Unexamined Patent Publication No.
- the present invention has been made in view of the above-mentioned circumstances, and has a method of immobilizing a physiologically active substance at a high density and having a high immobilization efficiency, a method for producing the immobilized carrier, An object of the present invention is to provide a method for efficiently analyzing a target component in a sample using the immobilized carrier, and a kit for the analysis. Disclosure of the invention
- the present inventors have conducted studies to achieve the above object, and found that a carrier having a carbon or metal or metalloid carbon compound layer formed on the surface thereof as a carrier for immobilizing a physiologically active substance.
- the functional group can be coordinated with high density, and the functional group of the physiologically active substance can be bonded to and fixed to this functional group, so that the immobilization efficiency is improved and
- the present inventors have found that the use of an immobilized carrier makes it possible to efficiently analyze a target component in a sample.
- the invention of claim 1 provides a bioactive substance-immobilized carrier comprising a carrier having a carbon or metal or metalloid carbon compound layer on which a bioactive substance is immobilized, formed on the carrier surface. Things.
- the immobilization of the physiologically active substance on the surface of the carrier may be carried out by a known immobilization method, for example, a method of immobilizing by physically adsorbing or a method of immobilizing by chemical bonding.
- the carbon or metal or metalloid carbon is preferably fixed via a functional group of the carbon compound layer, and in particular, as described in claim 3, the function of the physiologically active substance is It is preferable that the group is immobilized on the surface of the carrier by bonding between the group and carbon or a functional group of the metal or metalloid carbon compound layer.
- the functional group of the physiologically active substance or Z and the functional group of the carbon or metal or metalloid carbon compound layer are a hydroxyl group, a carboxyl group, a sulfate group, or a cyano group.
- One or more selected from the group consisting of a nitro group, a nitro group, a thiol group, an amino group, an aminophenyl group and an epoxy group Preferably, there is.
- the physiologically active substance is a substance or a protein or a peptide derived from a living body that exerts an action specific to a living body, as described in claim 5, and particularly, an antigen or a protein as described in claim 6. And antibodies are preferred.
- the physiologically active substance is a tumor marker, a hormone, an environmental hormone, a microorganism or a protein or peptide or a sugar chain antigen, a receptor, a ligand, an allergen, an immunoglobulin, a lectin, a sugar chain, a lipid. And lipopolysaccharide and antibodies against these are particularly preferred.
- the physiologically active substance is one or more selected from the group consisting of allergens, immunoglobulins, and antibodies thereto.
- the carbon or metal or metalloid carbon compound is preferably composed of crystalline carbon and / or amorphous carbon, as described in claims 9 and 10.
- the crystalline carbon is preferably diamond or diamond-like carbon
- the amorphous carbon is preferably graphite or amorphous carbon.
- crystalline carbon, particularly diamond is particularly preferred.
- the invention according to claim 13 is characterized in that a carrier having a carbon or metal or metalloid carbon compound layer having a functional group formed on the surface thereof is brought into contact with a bioactive substance, wherein the bioactive substance is immobilized.
- An object of the present invention is to provide a method for producing a dani carrier.
- a functional group is introduced on the surface of the carrier on which the carbon or metal or metalloid carbon compound layer has been formed, and then this is brought into contact with a physiologically active substance.
- a physiologically active substance Preferably.
- the functional group to be introduced on the carrier surface is, as described in claim 15, a hydroxyl group, a carboxyl group, a sulfate group, a cyano group, a nitro group, and a thiol group. It is preferably one or more selected from the group consisting of a group, an amino group, an amino group and an epoxy group.
- the invention according to claim 16 provides a bioactive substance immobilized on a carrier on which a carbon or metal or metalloid carbon compound layer is formed.
- the invention according to claim 17 provides a method for analyzing a target component in a sample, characterized by using the carrier for immobilizing a physiologically active substance according to any one of claims 1 to 12.
- the bioactive substance immobilized on the carrier formed by contacting the bioactive substance-immobilized carrier with the sample containing the target component and the sample This is to analyze the complex with the target component.
- the bioactive substance immobilized on the carrier surface is either an antigen or an antibody as described in claim 19, and the target component is an antigen or an antibody against the bioactive substance.
- the antigen or antibody is a tumor marker, a hormone, an environmental hormone, a microorganism-derived protein or peptide or a sugar chain antigen, a receptor, a ligand, an allergen, an immunoglobulin, as described in claim 20. It is one or more selected from the group consisting of lectins, sugar chains, lipids, lipopolysaccharides and antibodies thereto.
- the antigen or antibody is particularly preferably one or more selected from the group consisting of allergens, immunoglobulins, lectins, and antibodies thereto, as described in claim 21. .
- An invention according to claim 22 provides a kit for analyzing a target component, comprising the physiologically active substance-fixing carrier according to any one of claims 1 to 11.
- FIG. 1 is a schematic diagram showing the analysis of Ig E by the analysis method of the present invention.
- FIG. 2 is a schematic diagram showing the analysis of IgE for a specific allergen by the analysis method of the present invention. is there.
- FIG. 3 is a diagram showing the results of IgE analysis obtained in Example 1.
- FIG. 4 is a diagram showing the results of allergen analysis when the negative serum obtained in Example 2 was used as a sample.
- FIG. 5 is a diagram showing the results of allergen analysis using the cedar positive serum obtained in Example 2 as a specimen.
- FIG. 6 is a diagram showing the results of allergen analysis when the mite positive serum obtained in Example 2 was used as a specimen.
- the carrier for immobilizing a physiologically active substance of the present invention according to claim 1 is characterized in that the carrier comprises a carbon or metal or metalloid carbon compound layer on which a physiologically active substance is immobilized, which is formed on the surface of the carrier.
- the physiologically active substance is, as described in claim 5, a substance that exerts an action specific to a living body or a protein or peptide derived from a living body.
- an antigen or Z and an antibody are preferable because a biological component can be accurately analyzed by an antigen-antibody reaction as described later.
- tumor markers for example, protein antigens such as AFP, PSA, CEA, PGI, PGII, sugar chain antigens such as CA19-9, PIV KA-II, CA 125, etc.
- Hormones eg, ⁇ , T3, T4, TSH, insulin, C-peptide, LH, FSH, prolactin, etc.
- environmental hormones eg, tributynoles, noyphenol, 4-octynolephenol, phthalanolate
- Proteins or peptides derived from microorganisms or carbohydrate antigens eg, Mycobacterium tuberculosis, pneumococci, diphtheria, meningococci
- carbohydrate antigens eg, Mycobacterium tuberculosis, pneumococci, diphtheria, meningococci
- Viruses such as fungi such as Candida and T.
- spirochetes such as Leptosvira and Treponema pallidum
- proteins or peptides derived from microorganisms such as Chlamydia and Mycoplasma, or sugar chain antigens
- receptors eg, receptors for estrogen, TSH, etc.
- ligands for example, estrogens, TSH, etc., allergens (for example, bronchial asthma, allergic rhinitis, inhalable allergens which cause allergic diseases such as rheumatoid dermatitis, etc.)
- food allergens Strike for example, Kona Hiyoda Mites such as Dermatophagoides pteronyssinus; mites such as Dermatophagoides pteronyssinus; pollen such as cedar, cypress, sparrow crab, ragweed, oooga-gaeri, harugaya, rye, etc., animals
- Allergens derived from wood, drugs, chemicals, etc. immunoglobulins (eg, IgG, IgM, IgA, IgE, IgD, degradation products thereof, etc.), lectins (eg, concanavalin A, Lentil bean lectin, kidney bean lectin, dalla lectin, wheat germ lectin, etc., sugar chains (eg, ABO antigen), lipids (eg, lipids such as cholesterol monophosphate, phospholipids such as cardiolipin, phosphatidylcholine, and sphingomyelin) Sphingophospholipid, lipoprotein), lipopolysaccharide (eg, endotoxin) and anti- It is particularly preferable that the one or more selected group consisting of.
- immunoglobulins eg, IgG, IgM, IgA, IgE, IgD, degradation products thereof, etc.
- lectins eg, concanavalin A,
- the target component can be analyzed by a protein peptide-protein reaction or the like.
- a physiologically active substance that specifically binds to a component to be analyzed may be appropriately selected.
- the target component in the sample is an antigen
- an antibody against the antigen is selected as the physiologically active substance to be immobilized on the carrier
- the target component is an antibody
- the antigen or the antibody against the antibody is selected. What is necessary is just to select the antibody with respect to the said antibody.
- a single operation can simultaneously analyze two or more different target components present in a sample or analyze unknown target components, that is, detect or identify ⁇ It becomes possible to identify.
- the target component is a receptor, a ligand, a lectin, a tumor marker (sugar chain), a protein or a peptide, a ligand for the receptor, a receptor for the ligand, a sugar chain for the lectin, a lectin for the tumor marker (sugar chain).
- a peptide chain for a protein or a protein for a peptide may be selected as a physiologically active substance.
- bioactive substance-immobilized carrier having immobilized thereon enables analysis of allergies, which is one of the preferred specific embodiments of the present invention.
- allergen analysis analysis of the presence or absence of allergen in a sample and the amount of allergen, etc.
- specific analysis of allergens that cause allergic reactions can be performed.
- an anti-IgE antibody is selected as a physiologically active substance, it is possible to analyze the total amount of IgE present in the sample (e.g., whether or not it is allergic and its degree).
- an appropriate display for example, assigning a number, etc.
- the amount of the physiologically active substance immobilized on the carrier on which the carbon or metal or metalloid carbon compound layer is formed varies depending on the surface area of the carrier used, the nature and type of the physiologically active substance, etc., and cannot be determined unconditionally.
- the immobilization amount per unit area (cm 2 ) of the portion where the physiologically active substance is immobilized is usually 0.1 to 1 mg, preferably 1 to 100 mg / l;
- the carrier having a carbon or metal or metalloid metal compound layer formed thereon means that the carrier is carbon or metal. Alternatively, the surface is coated with a metalloid metal compound.
- carbon or metal or metalloid metal compound as described in claims 9 and 10, carbon such as crystalline carbon and amorphous carbon, metal carbon compound, metalloid carbon compound And the like.
- the crystalline carbon is preferably diamond, diamond-like carbon, or the like, as described in claim 11, and the amorphous carbon is graphite, as described in claim 12. And amorphous carbon are preferred.
- the metal carbon compound tungsten carbide, titanium carbide and the like are preferable, and as the metalloid metal compound, silicon carbide and the like are preferable.
- the diamond includes carbonized synthetic diamond, high pressure forming diamond, natural diamond and the like.
- the crystalline carbon compound may have a single-crystal structure or a polycrystalline structure. These carbon or metal or metalloid carbon compounds may be used alone or in combination of two or more.
- Crystalline carbon such as diamond and diamond-like carbon
- Amorphous carbon such as silicon, graphite, and amorphous carbon, and particularly crystalline carbon such as diamond and diamond-like carbon, are particularly preferable because a large amount of a physiologically active substance can be bonded thereon. .
- the carrier coated with the carbon or metal or metalloid carbon compound in the carbon or metal or metalloid carbon compound layer-forming carrier may be made of various ceramics such as glass, silica gel, silicon, and the like, and may be made of fluoride, iron, nickel or the like.
- Organic carriers such as inorganic carriers such as alloys containing aluminum, cobalt, etc., and organic synthetic polymers such as cellulose, dextran, polyacrylamide, polystyrene derivatives, maleic anhydride polymers, nylon, and polyatalonitrile.
- the shape of the carrier is not particularly limited, such as a particle shape, a plate shape, a rod shape, a film shape, a disk shape, and a disk shape. Of these, glass is preferred because it is inexpensive and readily available.
- the size of the carrier varies depending on the purpose of use and is not particularly limited, but is 100 cm 2 or less, preferably 50 cm 2 or less, more preferably 25 cm 2 or less.
- the thickness of the carbon or metal or metalloid carbon compound layer of the carbon or metal or metalloid carbon compound layer-forming carrier is preferably 1 nm or more. Preferably it is 1.5 nm to 100 nm. If it is less than 1 nm, the effect of the coating cannot be obtained substantially. On the other hand, if the thickness exceeds 100 nm, only the very surface of the substantial coating layer is used, which is wasteful in terms of labor and cost.
- the carbon or metal or metalloid carbon compound layer can be produced by coating a carrier with a carbon or metal or metalloid metal compound by a known method.
- Known methods include microwave plasma CVD, ECRCVD, IPC, DC sputtering, ECR sputtering, ion plating, arc ion plating, EB evaporation, resistance heating evaporation, and slurry. Coating methods and the like (JP-A-10-95569, JP-A-8-296044, JP-A-8-165576, JP-A-8-74056, etc.).
- the surface of the carbon or metal or metalloid carbon compound layer-forming carrier may be smooth or intentionally roughened. Roughening increases the surface area of the carrier, which is convenient for immobilizing large amounts of bioactive substances.
- the immobilization of the physiologically active substance on the surface of the carrier may be performed by a known immobilization method, for example, a method of immobilization by physically adsorbing or a method of immobilization by chemical bonding. It is preferable that the bioactive substance is immobilized through a functional group of a carbon or metal or metalloid carbon compound layer, as described in claim 3. It is preferable that the functional group is fixed by bonding between the functional group and the functional group of the carbon or metal or metalloid carbon compound layer.
- the functional group of the carbon or metal or metalloid carbon compound layer may be any as long as it can directly or indirectly bind to a physiologically active substance through a spacer or the like. As described in, one or more selected from the group consisting of a hydroxyl group, a propyloxyl group, a sulfate group, a cyano group, a nitro group, a thiol group, an amino group, an aminophenyl group and an epoxy group Can be
- the functional group of the physiologically active substance may be any as long as it can directly or indirectly bind to the functional group of the carbon or metal or metalloid carbon compound layer through a spacer or the like. Examples thereof include those similar to the functional groups of the carbon or metal or metalloid carbon compound layer.
- Introduction of a functional group onto the surface of the carbon- or metal- or semi-metallic carbon compound layer-forming carrier can be carried out by activating the carrier surface by chemical modification.
- Chemical modification of the surface of the carbon- or metal- or semi-metallic carbon compound layer-forming carrier may be performed by adding a hydroxyl group, a carboxyl group, a sulfate group, a cyano group, a nitro group, a thiol group, an amino group, an aminophenyl group or an epoxy group to the surface of the carrier.
- the functional group may be directly bonded, but may also be bonded via a spacer such as a hydrocarbon group having 1 or more carbon atoms, preferably 1 to 12 and more preferably 1 to 6 carbon atoms.
- the functional group is carboxy
- monocarboxylic acids such as formic acid, acetic acid, and propionic acid
- dicarboxylic acids such as oxalic acid, malonic acid, succinic acid, maleic acid, and fumaric acid
- polycarboxylic acids such as trimellitic acid
- the carrier surface is exposed to oxygen plasma. Oxidation, followed by steam treatment; Hydrogenation of the carrier surface, followed by irradiating the carrier surface with ultraviolet rays in chlorine gas to chlorinate the carrier surface, followed by hydrolysis in an alkaline solution for hydroxylation; Carrier A method in which the surface is oxidized with oxygen plasma and then chlorinated and then hydrolyzed in an alkaline solution to cause hydroxylation; the carrier surface is hydrogenated, and then the carrier surface is chlorinated by irradiation with ultraviolet light in chlorine gas.
- a method of reacting with sodium sulfonate in a non-aqueous solvent may, for example, be mentioned. More specifically, for example, when it is desired to chemically modify the surface of the carbon- or metal- or semi-metallic carbon compound layer-forming carrier with a carboxyl group, hydrogenation treatment of the surface of the carbon- or metal- or semi-metallic carbon compound layer-forming carrier is desired. It is desirable to perform chlorination treatment, amination treatment and carboxylation treatment.
- the surface of the carrier is hydrogenated, and the surface of the carbon material or the like is chlorinated by irradiating ultraviolet rays in a chlorine gas in the next step, and then is aminated by irradiating it with an ultraviolet ray in an ammonia gas.
- a method of performing a condensation reaction with a dicarboxylic acid is preferred.
- the immobilization of the physiologically active substance on the carbon or metal or metalloid carbon compound layer-forming carrier can be performed as follows based on the type of the functional group on the carrier surface (for example, Methodsin Enzymology Vol. 44, p. 11-148, (1976) etc.).
- the functional group of the carbon or metal or metalloid metal compound layer-forming carrier has an amino group, and the surface of the carbon or metal or metalloid metal compound layer-forming carrier is chemically modified with an amino group.
- the bioactive substance can be immobilized by binding the carboxyl group of the bioactive substance to the amino group on the surface of the carrier using a condensing reagent such as N-hydroxysuccinimide or carboxydiimide. .
- immobilization can be performed by binding amino acid derived from a physiologically active substance after isocyanate by applying phosgene to an amino group on the surface of the carrier. Further, immobilization can also be carried out by bonding thiophosphogen to an amino group on the surface of the carrier and isolating the amino group derived from a physiologically active substance after the thiothiogenation.
- immobilization can be achieved by reacting dartaldehyde with an amino group on the surface of the carrier and reacting it with an amino group or phenol group derived from a physiologically active substance.
- the physiologically active substance is a sugar or a sugar derivative such as a glycoprotein, it is reacted with periodate in advance, then reacted with an amino group on the surface of the carrier, and further reduced with sodium borohydride or the like. , Can be fixed.
- the amino group on the surface of the carrier may be replaced with a bifunctional spacer having a maleimide group such as m-maleimide benzoyl N-hydroxysuccinimide ester or a 4-functional succinimidyloxycarbol- ⁇ - ( 2-Pyridyldithio)
- a bifunctional spacer having a pyridyldithiosulfide group such as toluene, etc.
- maleidation or pyridyldithiosulfide It can be immobilized by reacting an immobilized carrier with a thiol group of a physiologically active substance.
- a condensing reagent such as ⁇ ⁇ ⁇ ⁇ ⁇ -hydroxysuccinimide and carbodiimide is used to convert the carboxyl group on the carrier surface to the amino group of a physiologically active substance. Act on By reacting, it can be fixed. In addition, the carboxyl group on the surface of the carrier is acted on by the action of thionyl chloride to form a carboxyl sulfide. Immobilization can also be performed by reacting the formed carboxychloride with an amino group derived from a physiologically active substance.
- hydrochloric acid and methanol are added to the lipoxyl group on the surface of the carrier and reacted, and then hydrazine is added and reacted to form hydrazide.
- hydrazine is added and reacted to form hydrazide.
- fluthermore, sodium nitrite and hydrochloric acid are added to hydrazide to form acylazid.
- the surface of the carrier is activated, it can be immobilized by reacting it with an amino, thiol or hydroxyl group derived from a physiologically active substance.
- anhydride from a carboxyl group on the surface of the carrier and reacting it with an amino group derived from a physiologically active substance (dehydration condensation), it can be immobilized.
- the surface of the carbon or metal or metalloid carbon compound layer-forming carrier is chemically modified with a hydroxyl group if the surface is chemically modified.
- the surface of the carrier is chemically modified with hydroxyl groups
- the surface of the carrier is activated by acetylating the hydroxyl groups on the surface of the carrier and then brominating them, and replacing the bromine and iodine with NaI to activate the surface of the carrier.
- Immobilization can also be performed by reacting with an amino group, thiol group or hydroxyl group of the active substance.
- cyanogen bromide can be acted on a hydroxyl group on the surface of a carrier to activate the same, and this can be immobilized by covalently bonding to an amino group derived from a physiologically active substance.
- the surface of the carbon or metal or metalloid carbon compound layer forming carrier is chemically modified with epoxy groups.
- it can be immobilized by reacting it with a hydroxyl group derived from a physiologically active substance (derived from tyrosine, serine, etc.), an amino group or a thiol group.
- the surface of the carbon or metal or metalloid carbon compound layer-forming carrier is chemically modified with a sulfo / pho group
- the sulfo group on the surface of the carrier is reacted with salt sulfonic acid to form sulfonyl chloride. It can be immobilized by reacting with an amino group, imidazole group, thiol group, phenol group or the like derived from an active substance.
- the aminofuryl group on the surface of the carrier is activated with sodium nitrite and hydrochloric acid.
- Immobilization can also be achieved by using a diazonium coupling method in which a reaction with an amino group, a thiol group, a phenol group, an imidazole group, or a guanidino group derived from a physiologically active substance is performed.
- the carbon or metal or metalloid metal compound layer-forming carrier has a functional group of a cyano group and the surface of the carbon or metal or metalloid carbon compound layer-forming carrier is chemically modified with a cyano group, the cyano group is used. Is hydrolyzed in the presence of an acid catalyst, and this is converted into a hydroxyl group, which can be immobilized in the same manner as in (2) above.
- Lithium aluminum hydride when the surface of the carbon- or metal- or semi-metallic carbon compound layer-forming carrier has been modified with a nitro-functional carbon- or metal- or semi-metallic carbon compound layer-forming surface. After reducing with a reducing agent such as this and converting it to an amino group, immobilization can be carried out in the same manner as in the above (1).
- the functional group of the carbon or metal or metalloid carbon compound layer forming carrier is a thiol group
- the amino group of the physiologically active substance is added to, for example, m-maleimibenzyl N-hydroxysuccinimide ester.
- Bifunctional spacer having a maleimide group such as, for example, 4-succinimidyloxycarboxy-2- (2-pyridyldithio) bifunctional having a pyridyldithiosulfide group such as toluene
- Maleimide or pyridyldithiosulfide can be immobilized by reacting the maleimide or pyridyldithiosulfide bioactive substance with a thiol group on the surface of the carrier.
- bifunctional spacer such as bismaleimide hexane or 1,4-zy (3,1,2,1-pyridyldithio (propionamide)) butane is used.
- the immobilization can be carried out by reacting the thiol group on the surface of the carrier with the thiol group of the physiologically active substance using the above.
- the physiologically active substance-immobilized carrier comprising the carrier on which the carbon or metal or metalloid carbon compound layer on which the physiologically active substance according to the present invention is immobilized is formed can be analyzed by non-specific adsorption.
- blocking more specifically, for example, albumin, globulin, casein, polyvinyl alcohol, surfactants, silane coupling agents, titanium coupling agents, aluminum coupling agents, etc. It is desirable to perform a blocking treatment with a blocking agent.
- the carrier according to the present invention may be in a variety of forms, for example, in a state of being subjected to a drying treatment, a freezing treatment, a freeze-drying treatment or the like, or a state of being immersed in an appropriate buffer. Can be stored in a state.
- the buffer examples include a tris buffer, a phosphate buffer, a veronal buffer, a borate buffer, a good buffer and the like which are usually used in this field. May contain, for example, stabilizers such as albumin, globulin, water-soluble gelatin, and polyethylene glycol, surfactants, and saccharides.
- a physiologically active substance-immobilized carrier is prepared.
- the method may be performed in accordance with the above-described method, except that two or more different types are appropriately used.
- a bioactive substance is immobilized on the surface of the carrier by using a known immobilization method, for example, a method of physically adsorbing and immobilizing (physical binding method), etc.
- a bioactive substance-immobilized carrier comprising a carrier having a carbon or metal or metalloid carbon compound layer on which biomaterial is immobilized formed on the surface can be produced.
- the carrier and the physiologically active substance can be more firmly bonded to each other, so that the carrier having a carbon or metal or metalloid carbon compound layer having a functional group on its surface is brought into contact with the physiologically active substance. It is preferable to immobilize the physiologically active substance on the surface of the carrier via a functional group of the carbon or metal or metalloid carbon compound layer by a chemical bond (a method of bonding). Group and carbon or metal or semi It is preferable that the physiologically active substance is immobilized on the surface of the carrier by chemically bonding the functional group of the metal carbon compound layer to the functional group.
- a hydroxyl group examples thereof include one or more selected from the group consisting of a carboxyl group, a sulfate group, a cyano group, a nitro group, a thiol group, an amino group, an aminophenyl group and an epoxy group.
- the production method of the present invention may be specifically carried out, for example, as follows. That is, when a physical bonding method is used, for example, a solution containing a physiologically active substance is applied, for example, by coating, dripping, or spraying on a carbon or metal or metalloid metal compound layer-forming carrier, or The carrier is immersed in the solution, or a method using a commercially available stamping device (for example, a method using a stamping device sold by Japan Laser Electronics Co., Ltd. or the like) is used to form the carrier and the carrier.
- a physical bonding method for example, a solution containing a physiologically active substance is applied, for example, by coating, dripping, or spraying on a carbon or metal or metalloid metal compound layer-forming carrier, or The carrier is immersed in the solution, or a method using a commercially available stamping device (for example, a method using a stamping device sold by Japan Laser Electronics Co., Ltd. or the like) is used to form the carrier and the carrier.
- a physiologically active substance-fixed carrier comprising a carrier having a layer formed on the surface can be obtained.
- a solution containing a physiologically active substance is applied to a carbon- or metal- or metalloid-carbon compound layer-forming carrier having a functional group on its surface, for example, by coating. , Dripping or spraying, or the carrier in the solution
- the carrier and the physiologically active substance are immersed in the carrier or a method using a commercially available stamping device (for example, a method using a stamping device sold by Nippon Laser Ichi Electronics Co., Ltd.).
- the functional group of the carrier and the physiologically active substance specifically, the functional group of the physiologically active substance are reacted and chemically bonded to each other according to a known chemical bonding method.
- the bioactive substance-immobilized carrier comprising a carrier having a carbon or metal or metalloid carbon compound layer on the surface of which the target bioactive substance is immobilized can be obtained. it can.
- the carbon or metal or metalloid carbon compound layer-forming carrier does not have an appropriate functional group for binding a physiologically active substance, for example, the carbon
- the carrier may be brought into contact with the physiologically active substance as described above.
- the method for introducing a functional group onto the surface of the support on which the carbon or metal or metalloid carbon compound layer is formed is as described above.
- the solution containing a physiologically active substance may be any of those usually used in this field, for example, Tris buffer, phosphate buffer, Benetal buffer, borate buffer, good buffer. And the like.
- the amount of the physiologically active substance in the solution at the time of immobilization cannot be specified unconditionally depending on the nature and type of the physiologically active substance to be used, but it is usually from IngZml to; I000mg / ml, preferably 1 / gZml. ⁇ : 10 mg / ml, more preferably 10 zg / ml to 2 mgZml.
- the physiologically active substance is immobilized on the surface of the carrier so as to be in the concentration range described above.
- the invention according to claim 16 relates to a physiologically active substance which is solidified on a carrier on which a carbon or metal or metalloid carbon compound layer is formed.
- a physiologically active substance has not been known so far, and thus, for example, a target component having a property of binding to the physiologically active substance in a sample can be measured with high sensitivity and high accuracy. Become like
- physiologically active substance the carbon or metal or metalloid carbon compound, the carrier, etc.
- method of forming the carbon or metal or metalloid carbon compound layer the method of immobilization, etc. are as described above. .
- the carrier is used as a solution containing a blocking agent such as albumin, pulp, casein, polyvinyl alcohol / leanorecol, a surfactant, a silane coupling agent, a titanium coupling agent, and an aluminum coupling agent. It is desirable to perform a treatment of immersion in the film.
- a blocking agent such as albumin, pulp, casein, polyvinyl alcohol / leanorecol, a surfactant, a silane coupling agent, a titanium coupling agent, and an aluminum coupling agent. It is desirable to perform a treatment of immersion in the film.
- the method of the present invention according to claim 17 uses the carrier for immobilizing a physiologically active substance according to any one of claims 1 to 12.
- the target component in the sample can be efficiently analyzed with high sensitivity and high accuracy. More specifically, as described in claim 18, first, the physiologically active substance-immobilized carrier according to any one of claims 1 to 12 is brought into contact with a sample containing the target component, A complex is formed between the physiologically active substance immobilized on the carrier and the target component in the sample. Subsequently, the target component in the sample may be analyzed by analyzing the complex.
- a physiologically active substance-immobilized carrier comprising a carrier having a carbon or metal or metalloid carbon compound layer formed on the surface to which two or more different physiologically active substances are immobilized.
- various target components contained in a sample are contacted substantially simultaneously with all of two or more different physiologically active substances immobilized on a physiologically active substance-immobilized carrier.
- the various target components in the sample are supplied. The analysis may be performed.
- target component means a substance capable of specifically binding to a physiologically active substance by, for example, an antigen-antibody reaction, a receptor-ligand reaction, a lectin-sugar chain reaction, or a protein peptide chain reaction. It is. More specifically, the same as the above-mentioned physiologically active substance can be mentioned, and the combination of the physiologically active substance and the target component is also as described above.
- samples include body fluids such as serum, plasma, cerebrospinal fluid, synovial fluid, and lymph, excretions such as urine and feces, and biological samples such as sputum, pus, and skin-derived materials such as foods, beverages, Environmental samples such as tap water, seawater, lake water, river water, factory effluent, cleaning water for semiconductors, cleaning liquids after cleaning medical instruments, etc., and water or the tris buffer used in this field, such as Tris buffer Solution, a phosphate buffer, a veronal buffer, a borate buffer, a buffer such as a good buffer, and the like.
- Tris buffer Solution such as Tris buffer Solution, a phosphate buffer, a veronal buffer, a borate buffer, a buffer such as a good buffer, and the like.
- a physiologically active substance-fixed carrier comprising a carrier having a surface formed with a carbon or metal or metalloid carbon compound layer on which a physiologically active substance is immobilized;
- Method of contacting with a sample containing, or contacting various target components contained in the sample with all of two or more different biologically active substances immobilized on a physiologically active substance-immobilized carrier substantially simultaneously As a method, the sample is placed on the carrier. Or a method of dipping or coating the carrier in the sample.
- the complex in order to analyze the complex between the physiologically active substance immobilized on the physiologically active substance-immobilized carrier and the target component in the sample, the complex is usually used, and the target is further analyzed.
- a labeled binding substance having a property of specifically binding to the component or the complex is brought into contact with the biologically active substance immobilized on the biologically active substance-immobilized carrier, and the target component and the labeled binding substance in the sample are combined with the biologically active substance.
- a complex (labeled complex) is generated, a labeling substance in the labeled complex is measured, and the measurement is performed based on the result.
- the target component is a substance that can be detected by any method such as an enzyme, a dye, a fluorescent substance, a luminescent substance, or a substance that absorbs in the ultraviolet
- the label-binding substance described above must be used. You don't have to.
- a complex of the physiologically active substance immobilized on the physiologically active substance-immobilized carrier and the target component in the sample, and a labeled binding substance having a property of specifically binding to the target component or the complex are included.
- a physiologically active substance-immobilized carrier comprising a carrier on which a carbon or metal or metalloid carbon compound layer is formed, the physiologically active substance as described above being immobilized on the surface thereof; It can be performed in the same manner as in the method of contacting the sample containing the component.
- a labeled binding substance having a property of specifically binding to the target component or the complex is a substance having a property of binding specifically to the target component or the complex and detectable by any method. Which is usually labeled with a labeling substance and has the ability to specifically bind to the target component or the complex.
- the substance having the ability to specifically bind to the target component or the complex is the same as the above-mentioned physiologically active substance.
- an antibody or antigen against the target component or the complex is generally used. It is a target.
- Labeling substances used in the present invention include enzyme immunoassay (EIA), Any method usually used in this field, such as immunoimmunoassay (RIA), fluorescent immunoassay (FIA), and hybridization, may be used.
- EIA enzyme immunoassay
- Any method usually used in this field such as immunoimmunoassay (RIA), fluorescent immunoassay (FIA), and hybridization
- ALP alkaline phosphatase
- POD peroxidase
- G6PDH gnorecosoxidase
- G6PDH glucose-6-phosphate dehydrogenase
- malate dehydrogenase luciferase enzymes
- Kumashiburi Lian preparative Blue R250 dyes such as methyl orange, for example, 99 m T c, 131 I, 125 I, 14 C, 3 H, 32 P, 35 S, radioactive same position elements etc.
- a spin labeling agent represented by compounds having an oxyl group such as to
- a usual method used in this field for example, a known EIA, RIA, FIA, or hybridization method is used.
- Labeling methods known per se in general eg, Medical Chemistry Laboratory, Vol. 8, supervised by Yuichi Yamamura, 1st edition, Nakayama Shoten, 1971; Illustrated fluorescent antibody, Akira Kawao, 1st edition, Soft Science Co., Ltd., 1983; Enzyme immunoassay, Eiji Ishikawa, Tadashi Kawai, Kiyoshi Miyai, 3rd edition, Yakuhin Shoin, 1987, Molecular Claw Young Laboratory Laboratory, Second Edition, T. Sampunorek , EF Free C., T. Maniate, Cold Spring Harbor Laboratory Press, etc.], or a conventional method utilizing the reaction of avidin (or streptavidin) with biotin.
- a carbon or metal or metalloid carbon compound layer on which one or different two or more physiologically active substances are immobilized is formed on the surface of the carrier.
- a carbon or metal or semi-metallic carbon compound layer on which the target component in a complex of the physiologically active substance-immobilized carrier and the target component in the sample, or one or two or more different physiologically active substances is immobilized Complex of a physiologically active substance-immobilized carrier consisting of a carrier having a surface formed on the surface and a target component in a sample and a label binding substance having a property of specifically binding to the target component or the complex (label complex)
- the detection of the presence of the target component in the sample can be performed by detecting based on the properties of the labeling substance in the sample.
- the amount of the target component in the complex or the amount of the labeling substance in the labeled complex is determined by a measuring method according to these properties, and the amount of the sample is determined based on these amounts.
- the amount of the target component therein can be determined quantitatively or semi-quantitatively.
- a sample standard product
- concentration of the target component is measured by the same method, and Calculate the amount of the target component in the sample using a calibration curve that shows the relationship between the concentration of the target component and the obtained measurement value (the measured amount of the target component in the complex or the amount of the labeled substance in the labeled complex).
- a physiologically active substance-immobilized carrier comprising a carrier having a carbon or metal or metalloid carbon compound layer formed on the surface on which one or two or more different physiologically active substances are immobilized;
- the sample containing is contacted with each other by the method described above to form a complex of the physiologically active substance and the target component.
- the carrier is used in the fields of hybridization, immunization, and the like, for example, in Tris buffer, phosphate buffer, Vero " ⁇ " buffer, borate buffer, Good buffer, sSC buffer, etc. Wash with a buffer solution to remove components in the sample that did not participate in the formation of the complex.
- the resulting complex was brought into contact with the target component or a labeled binding substance having a property of specifically binding to the complex, and the complex was immobilized on a physiologically active substance-immobilized carrier.
- the carrier is washed with a buffer solution or the like as described above, and the carrier that has not been involved in the generation of the labeled complex is released.
- the labeled binding substance is removed.
- the target component in the complex or the labeling substance in the labeled complex is measured by a predetermined method according to these properties, and the target component in the sample can be analyzed based on the result.
- a so-called competitive method in which a target component labeled with a labeling substance is used and a competitive reaction between the target component and the target component in the sample is used, so that the target molecule in the sample is Can be analyzed.
- a physiologically active substance-immobilized carrier comprising a carrier having a carbon or metal or metalloid carbon compound layer formed on the surface on which one or two or more different physiologically active substances are immobilized; And a target component labeled with a labeling substance, and a labeled complex of the physiologically active substance and the labeled target component, and a complex of the physiologically active substance and the target component Is generated. Thereafter, the carrier is washed with a buffer solution or the like as described above to remove components in the sample that did not participate in the complex formation and free labeled target components.
- the labeling substance in the labeling complex or the labeling substance bound to the removed free labeled target component is measured by a predetermined method according to these properties, and based on the results, the amount of the labeling substance in the sample is determined.
- the target component can be analyzed.
- a method for labeling a target component with a labeling substance and a carrier for immobilizing a physiologically active substance includes the method of labeling a substance capable of specifically binding to the target component or complex with the labeling substance described above, and the method of immobilizing a bioactive substance.
- the method is the same as that for bringing the carrier into contact with the sample containing the target component, and the rest is as described above.
- a predetermined measuring method may be used for each of these types.
- the property is enzyme activity
- standard methods such as EIA and hybridization are used.
- EIA enzyme-linked immunosorbent assay, Protein Nucleic Acid Enzyme Supplement No.31, Kitakawa Tsunehiro, Minamihara Toshio, Tsuji Akio, Eiji Ishikawa Editing , Pages 51-63, Kyoritsu Shuppan Co., Ltd., published on September 10, 1987 ”, etc., and when the detected substance is a radioactive substance, RIA or hybridization is used.
- the measurement may be performed by a conventional method using a measuring instrument such as a spectrophotometer.
- the measurement may be performed by a conventional method using a measuring instrument.
- a conventional method using an electron spin resonance apparatus for example, “Enzyme-linked immunosorbent assay, Protein Nucleic Acid Enzyme Supplement No. 31, Tsunehiro Kitagawa, Toshio Minamihara, Akio Tsuji, Stone
- the measurement may be performed according to the method described in Eiji Kawai, pp. 264-271, Kyoritsu Shuppan Co., Ltd., published on September 10, 1987.
- the amount of the labeled binding substance having the property of specifically binding to the target component or the complex cannot be generally determined because it varies depending on the type of the labeled binding substance to be used.
- the concentration is equal to or higher than the concentration capable of binding to all of the physiologically active substances immobilized on the physiologically active substance-fixed carrier, and the amount of the target component labeled with the labeling substance is also the type of the target component used.
- the concentration is usually higher than the concentration capable of binding to all the physiologically active substances immobilized on the physiologically active substance-immobilized carrier.
- the pH and temperature during the reaction cannot be determined unconditionally because they differ depending on the type of the physiologically active substance and the target component, etc., but the complex of the physiologically active substance and the target component,
- the pH may be within a range that does not prevent the formation of a labeled complex of the substance, the target component, and the labeling substance or a complex of the physiologically active substance and the labeling target component, and the pH is usually 2 to 10; It is preferably 5 to 9, and the temperature is usually 0 to 90 ° C, preferably 20 to 80 ° C.
- the reaction time depends on the properties of the components forming the complex and the like, and the reaction time is usually several seconds to several hours. I just need to.
- the biological activity immobilized on the surface of the carrier according to the present invention If an antigen or an antibody is selected as the substance as described in claim 19, an antigen or an antibody against the physiologically active substance present in the sample can be simply and accurately analyzed as a target component. Further, as described in claim 20, tumor markers, hormones, environmental hormones, microbial proteins or peptides or bran chain antigens, receptors, ligands, allergens, immunoglobulins (particularly IgE), lectins, It is useful to select one or two or more selected from the group consisting of sugar chains and antibodies against these, because these can be easily analyzed in the sample or antibodies against these physiologically active substances.
- a receptor When a receptor, ligand, lectin, tumor marker (sugar chain), protein or peptide, etc. is selected as a physiologically active substance, not only antigen-antibody reaction but also receptor-ligand reaction, lectin-sugar chain It can also be analyzed by a reaction or a protein-peptide chain reaction.
- allergen as a physiologically active substance, immunoglobulin (especially I g E), or 1 selected from the group consisting of antibodies against ⁇ pico these fixed I those more It is particularly useful if the analysis method of the present invention is carried out using a carrier for immobilizing a physiologically active substance, which enables simple and highly accurate analysis of perilla.
- an antibody against an allergen is used as a bioactive substance, it is useful for analysis of allergen (analysis of the presence or absence of allergen in a sample and the amount of allergen). It is useful for the specific analysis of allergens that cause allergies (analysis of the allergic response to allergens and the degree of allergic reactions).
- allergens that cause allergies analysis of the allergic response to allergens and the degree of allergic reactions.
- active substance When used as an active substance, it is useful for analysis of the total amount of IgE present in a sample (analysis of whether or not it is an allergic substance and its degree).
- the force of dropping or applying a sample containing the target component (allergen) onto a bioactive substance-immobilized carrier on which an antibody against an allergen is immobilized as a bioactive substance, or the carrier is placed in the sample. It is immersed or the like and brought into contact with each other to form a complex between the antibody against the allergen on the bioactive substance-immobilized carrier and the allergen. Thereafter, the carrier is washed with an appropriate buffer or the like to remove components (free allergens and the like) in the sample that did not participate in the formation of the complex.
- the produced complex is brought into contact with an antibody against the allergen labeled with a labeling substance (the target binding component or a labeled binding substance having a property of specifically binding to the complex) in the same manner as described above, A labeled complex of the antibody against the allergen immobilized on the active substance-immobilized carrier, the allergen, and the antibody against the labeled allergen is generated. Thereafter, the antibody is washed with an appropriate buffer or the like to remove antibodies against free labeled allergen which did not participate in the formation of the labeled complex. Next, if the labeling substance in the labeling complex is measured by the method described above, it can be analyzed whether or not the allergen is present in the sample.
- a labeling substance the target binding component or a labeled binding substance having a property of specifically binding to the complex
- the amount of the labeling substance in the labeling complex is determined by the above-described method, and the amount of the labeling substance obtained is determined in the same manner using a sample (standard product) having a known allergen concentration.
- the allergen present in the sample can be determined.
- the amount can be determined quantitatively or semi-quantitatively.
- a bioactive substance-immobilized carrier consisting of a carrier having a carbon or metal or metalloid carbon compound layer formed on the surface to which antibodies against two or more different allergens are immobilized is used. Is performed in a single operation. This is advantageous because it can identify, identify, and quantify multiple existing allergens.
- the target component (the allergen) is placed on a bioactive substance-immobilized carrier composed of a carbon or metal or metalloid carbon compound layer on the surface of which an allergen (antigen) is immobilized as a bioactive substance.
- the carrier containing allergen on the carrier and IgE with respect to the allergen is formed by dropping or applying a sample containing (IgE) to the carrier, or by immersing the carrier into the sample and bringing them into contact with each other. Let it. Thereafter, the carrier is washed with an appropriate buffer or the like to remove components (such as free non-targeted IgE) in the sample that did not participate in the complex formation.
- the complex thus produced is brought into contact with the anti-IgE antibody labeled with a labeling substance (the labeling substance having the property of specifically binding to the target component or the complex) in the same manner as described above.
- a labeling substance the labeling substance having the property of specifically binding to the target component or the complex
- a labeled complex of the allergen immobilized on the carrier, IgE against the allergen and a labeled anti-IgE antibody is generated. Thereafter, this is washed with an appropriate buffer or the like to remove free labeled anti-IgE antibody that has not been involved in the formation of the labeled complex.
- the labeling substance in the labeling complex is measured by the method described above, it is determined whether or not IgE for the specific allergen used as the physiologically active substance is present in the sample, that is, the sample is derived. Whether or not the living body causes an allergic reaction to a specific allergen, or in other words, the allergen that causes allergy can be identified.
- the amount of the labeling substance in the labeling complex is determined by the method described above, and the amount of the labeling substance obtained is determined using a sample (standard) with a known IgE concentration.
- the sample for allergens used as bioactive substances
- the amount of the antibody (IgE) can be determined quantitatively or semi-quantitatively, whereby the degree of the sensitivity of the living body from which the sample is derived to a specific allergen, that is, the biological Can be analyzed to determine the degree to which it causes an allergic reaction.
- a bioactive substance-immobilized carrier consisting of a carrier having a carbon or metal or metalloid carbon compound layer formed on the surface to which two or more different allergens are immobilized is used.
- the type of allergen to which various IgE present in the sample reacts that is, to what kind of allergen the living body of the sample causes an allergic reaction
- the degree of susceptibility to identification and specific / identified allergens can be analyzed.
- the target component (I) is placed on a bioactive substance-immobilized carrier comprising a carbon or metal or metalloid carbon compound layer on the surface of which an anti-IgE antibody is immobilized as a bioactive substance.
- g E) is dropped or applied, or the carriers are immersed in the sample and brought into contact with each other to form a complex of anti-IgE antibody and IgE on the carrier.
- the carrier is washed with an appropriate buffer or the like to remove components in the sample that did not participate in the formation of the complex.
- the produced complex is brought into contact with an anti-IgE antibody labeled with a labeling substance (a labeled binding substance having a property of specifically binding to the target component or the complex) in the same manner as described above. Then, a labeled complex of the anti-IgE antibody immobilized on the carrier, the IgE, and the labeled anti-IgE antibody is generated. Thereafter, this is washed with an appropriate buffer or the like to remove free labeled anti-IgE antibody which has not been involved in the production of the labeled complex. Next, the amount of the labeling substance in the labeling complex is determined by the method described above, and the amount of the obtained labeling substance is calculated as follows.
- a labeling substance a labeled binding substance having a property of specifically binding to the target component or the complex
- the anti-IgE antibody and two or more allergens different from each other are each immobilized on the same surface, and each comprises a carrier having a carbon or metal or metalloid carbon compound layer formed on the surface.
- the type of allergen to IgE present in the sample ie, the sample Identify and / or identify the allergen to which allergens cause allergic reactions
- Analyze the degree of sensitivity to the identified allergens This is advantageous because it can analyze the degree of susceptibility to general allergens (whether or not the organism is monoallergic).
- Force of dropping or coating a sample containing the target component (IgE) on a physiologically active substance-immobilized carrier consisting of A complex of various allergens with IgE and a complex of anti-IgE antibody on the carrier and IgE are respectively formed.
- the carrier is washed with a suitable buffer or the like to remove components in the sample that did not participate in the formation of the complex.
- the produced various complexes are brought into contact with an anti-IgE antibody labeled with a labeling substance in the same manner as described above, and the allergen immobilized on the carrier and the IgE are labeled.
- a labeled complex with the anti-IgE antibody and a labeled complex of the anti-IgE antibody immobilized on the carrier and the IgE and the labeled anti-IgE antibody are generated, respectively. After which it is removed by dividing the appropriate free labeled anti-I g E antibodies not involved washed and the generation of the labeled complex with a buffer solution or the like.
- the two substances used as the physiologically active substances were determined. Whether an antibody (IgE) against any of the above allergens is present in the sample, that is, identification / identification of the type of allergen against IgE present in the sample, in other words, It is possible to analyze whether or not the living body of the sample causes an allergic reaction to any allergen. Based on the amount of the labeling substance measured by the method as described above, the method as described above is used.
- the identification and identification of the living body of the sample can be performed.
- the degree of intensity of the sensitivity to Arerugen was, that is, to analyze the degree of strength with which the living body causes ⁇ Les Energy response against specific. Identified allergen.
- the biological activity of the sample can be determined. It is possible to analyze the degree of the susceptibility to allergens in general, that is, whether or not the living body is allergic. Subsequently, a kit for analyzing a target component in a sample according to the present invention described in claim 22 will be described.
- a kit according to the present invention according to claim 22 includes the physiologically active substance-immobilized carrier according to any one of claims 1 to 12. 'One or two or more physiologically active substances capable of binding specifically to one or more target components to be analyzed are fixed to these physiologically active substance-immobilized carriers.
- preferred embodiments and specific examples of the physiologically active substance-immobilized carrier are as described above.
- the kit of the present invention may contain, in addition to the carrier, a labeling substance having the property of specifically binding to the target component or the complex relating to the target component as described above. it can.
- the kit of the present invention comprises, as described above, reagents usually used in this field as described above, except that the kit comprises the physiologically active substance-immobilized carrier according to any one of claims 1 to 12.
- a solution such as a buffer solution (washing solution)
- a color-forming agent such as an acidifying color reagent or a coupling agent
- a labeling substance is an enzyme
- a substrate for measuring the enzyme and an enzyme reaction are used.
- It may contain reagents such as a reaction terminator for terminating the reaction, and standard products comprising the target component.
- concentration of each component contained in such reagents and standard products may be appropriately selected from the concentration range usually used in this field.
- IgE was analyzed using a diamond-coated carrier to which an anti-IgE antibody was bound.
- the diamond-coated carrier covered with carboxylic acid group was treated with 20 mM N-hydroxysucc inimide and 0.1 M l- (3- (dimethylamino) ropyl) 3-ethylcarbodimideSr'a ii 0.1 M phosphate buffer ( It was immersed in pH 6) for 30 minutes. After completion of the immersion, the carrier was washed twice with sterile distilled water, and the diamond-coated carrier was centrifuged to completely remove moisture.
- the anti-human IgE antibody was adjusted to a predetermined concentration with 50 mM MOPS buffer pH 7.5, and spotted on the activated diamond-coated carrier prepared above using a GT-MA SS stamping machine manufactured by Nippon Laser Electronics.
- the IgE antibody-enhanced diamond-coated carrier obtained in the above 2 was covered with 50 mM MOPS buffer (pH 7.5) containing 2% bovine serum albumin for 24 hours at room temperature. After the blocking treatment, centrifugation was performed at 1000 rpm for 1 minute.
- Human IgE to be measured is adjusted to a predetermined concentration with 50 mM MOPS buffer (pH 7.5) containing 2% bovine serum albumin to prepare a sample, and each sample is supplied to a 10 ⁇ L chip. Then, after covering with a cover glass to prevent air bubbles from entering, the cells were placed in a hybridization container and reacted at room temperature for 1 hour. After the reaction was completed, the force glass was removed, washed three times with SSC (0.15 ⁇ NaC 1 -0.015M trisodium citrate solution), and centrifuged at 1000 rpm for 1 minute.
- MOPS buffer pH 7.5
- bovine serum albumin bovine serum albumin
- the degree of the antigen-antibody reaction was measured using a confocal laser scanner manufactured by GSI Lumonicus to measure the amount of the Cy 3 label anti-human IgE antibody.
- the measurement results are shown in Table 1 and FIG. Measurement results of anti-human IgE antibody levels
- allergen analysis was performed using a diamond-coated carrier to which an anti-IgE antibody was bound.
- a diamond-coated substrate covered with a carboxyl group was treated with 0.1 M phosphate buffer containing 20 mM N-hydroxysuccinimide and 0.1 M 1- (3-dimethylamino) propyl 3-ethylcarpoimide. H 6) for 30 minutes. Thereafter, this was washed twice with sterile distilled water, and centrifuged to completely evaporate water.
- Allergens were adjusted to a concentration of 0.5 mgZml each with 50 mM MOPS buffer (pH 7.5), and the activated diamond-coated substrate prepared above was applied to Nippon Laser Electronics Co., Ltd. GT— Spotted using a MAS S stamping machine. After spotting, incubate for 1 hour in a humidified chamber containing 50% formamide. Was.
- Serum from a human that shows an allergic reaction to cedar or tick (cedar-positive serum or mite-positive serum) and human serum that does not show an allergic reaction to both (negative serum) were used as samples.
- Serum 10 was applied to each of the microarrays, covered with a cover glass to prevent air bubbles, and reacted at 4 ° C for 24 hours. After the reaction, the cover glass was removed, washed three times with 1 ⁇ SSC, and excess water was removed by centrifugation.
- the degree of antigen-antibody reaction was measured using a confocal laser scanner manufactured by GSI Lumonicus to measure the fluorescence derived from the Cy 3 label anti-human IgE antibody.
- Fig. 4 shows the results when negative serum was used as the sample
- Fig. 5 shows the results when cedar positive serum was used as the sample
- Fig. 6 shows the results when mite positive serum was used as the sample. Shown respectively.
- FIG. 6 weak fluorescence derived from the Cy 3 label anti-human IgE antibody was also observed from the cedar antigen-immobilized site on the microarray. As a result of a detailed examination of, it shows that it shows a slight allergic reaction not only to mites but also to cedar. That is, the mite-positive serum was a serum that showed an allergic reaction to ticks and cedar. It is. From these results, it is understood that the method of the present invention enables the identification of an allergen causing allergy. In addition, it can be seen that the degree of sensitivity to the specified allergen can be analyzed. Industrial applicability
- the physiologically active substance-immobilized carrier of the present invention can immobilize a physiologically active substance at a high density, a high immobilization efficiency can be realized without consuming a large amount of the physiologically active substance. Even with a bioactive substance having various surface charges, high immobilization efficiency can be maintained.
- the carrier can be produced efficiently. it can.
- the method of the present invention for analyzing a target component in a sample uses the carrier, so that various target components can be accurately analyzed.
- the analysis of the target component in the sample can be performed more easily.
- a carrier on which an anti-IgE antibody is immobilized can accurately analyze IgE, which reacts with allergens and is deeply involved in allergy, and is useful for various immunodiagnoses such as the cause of allergies. .
- the present invention is useful in various fields such as disease diagnosis in the medical field, biochemistry, and research in the field of molecular biology.
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Description
Claims
Priority Applications (3)
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KR1020037015365A KR100604680B1 (ko) | 2001-05-24 | 2002-05-14 | 생리활성물질 고정화 담체 및 이의 제조방법,고정화생리활성물질, 시료중의 대상성분 분석방법 및시료중의 대상성분의 분석용 키트 |
US10/478,674 US20040241883A1 (en) | 2001-05-24 | 2002-05-14 | Process for producing support carrying physilolgically active substance immobilized thereon and process for producing the same, immobilized physilolgically active substance, method for analyzing component in sample and kit for analyzing component in sample |
EP02724784A EP1403642A4 (en) | 2001-05-24 | 2002-05-14 | METHOD FOR PRODUCING AN IMMOBILIZED, PHYSIOLOGICALLY ACTIVE SUBSTANCE, CARRIER FOR PREPARING THE SAME IMMOBILIZED PHYSIOLOGICALLY ACTIVE SUBSTANCE, METHOD FOR ANALYZING SAMPLE COMPONENTS AND KIT FOR ANALYZING SAMPLE COMPONENTS |
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JP2001-156086 | 2001-05-24 | ||
JP2001156086A JP2002350447A (ja) | 2001-05-24 | 2001-05-24 | 生理活性物質固定化担体及びその製造方法、固定化生理活性物質、試料中の対象成分分析方法、並びに試料中の対象成分分析用キット |
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PCT/JP2002/004661 WO2002095408A1 (fr) | 2001-05-24 | 2002-05-14 | Procede de production d'un support sur lequel est immobilisee une substance physiologiquement active et procede de production dudit support, substance physiologiquement active immobilisee, procede d'analyse de constituants dans un echantillon et kit d'analyse de constituants dans un echantillon |
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US (1) | US20040241883A1 (ja) |
EP (1) | EP1403642A4 (ja) |
JP (1) | JP2002350447A (ja) |
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EP1610121A1 (en) * | 2003-03-25 | 2005-12-28 | Japan Science and Technology Agency | p CHANNEL FILED EFFECT TRANSISTOR AND SENSOR USING THE SAME |
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FI118061B (fi) * | 2001-09-24 | 2007-06-15 | Beanor Oy | Menetelmä ja bioanturi analyysiä varten |
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US20060051762A1 (en) * | 2002-09-13 | 2006-03-09 | Bunichirou Nakajima | Fixation carrier and solid phase |
JP3713032B2 (ja) * | 2003-08-29 | 2005-11-02 | 秋田県 | 低アレルゲンスギ選抜に関する簡便なCryj1免疫測定法 |
JP4207754B2 (ja) * | 2003-10-31 | 2009-01-14 | 和光純薬工業株式会社 | 磁性体を用いた免疫学的測定方法 |
JP4502724B2 (ja) * | 2004-06-23 | 2010-07-14 | 大阪瓦斯株式会社 | 評価用粒子並びにこれを用いた評価方法 |
BRPI0607935A2 (pt) * | 2005-02-11 | 2009-10-20 | Merck Patent Gmbh | marcação de oligossacarìdeo de fase sólida: uma técnica para manipulação de carboidratos imobilizados |
JP4740700B2 (ja) * | 2005-09-15 | 2011-08-03 | 一般社団法人オンチップ・セロミクス・コンソーシアム | 生体物質解析チップ、生体物質解析キットおよびこれらを用いる生体物質解析法 |
JP4755871B2 (ja) * | 2005-09-16 | 2011-08-24 | 株式会社山武 | バイオチップ用基板及びバイオチップの製造方法 |
US20100233429A1 (en) | 2005-09-16 | 2010-09-16 | Yamatake Corporation | Substrate for Biochip, Biochip, Method for Manufacturing Substrate for Biochip and Method for Manufacturing Biochip |
DE102005057920A1 (de) * | 2005-12-02 | 2007-06-28 | Strohner, Pavel, Dr. | Immunoassay zur simultanen immunchemischen Bestimmung eines Analyten (Antigen) und eines gegen den Analyten gerichteten Therapieantikörpers in Proben |
DE102006017153B3 (de) * | 2006-04-04 | 2007-08-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung von Oberflächenstrukturen und Element mit Oberflächenstruktur zur Verwendung für Biosensoren oder die Herstellung von Zellleitstrukturen |
JP5342421B2 (ja) | 2009-03-11 | 2013-11-13 | 信越化学工業株式会社 | 分子固定用基板の製造方法 |
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TW202246775A (zh) * | 2021-01-21 | 2022-12-01 | 日商東麗股份有限公司 | 過敏原固定化擔體及過敏原特異性抗體的檢測方法 |
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JP2000314714A (ja) * | 1999-04-30 | 2000-11-14 | Canon Inc | 電極及びその製造方法及び該電極を用いた電気化学センサー |
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DE3340592A1 (de) * | 1983-11-10 | 1985-05-23 | B. Braun Melsungen Ag, 3508 Melsungen | Konjugate makromolekularer verbindungen an haemoglobine, verfahren zu ihrer herstellung und sie enthaltende arzneimittel |
JP2816262B2 (ja) * | 1991-07-09 | 1998-10-27 | 工業技術院長 | 炭素微小センサー電極およびその製造方法 |
CA2064683A1 (en) * | 1992-03-26 | 1993-09-27 | Krishna Mohan Rao Kallury | Formation of thermostable enzymes with extra-ordinary heat tolerance by immobilization on phospholipid matrices |
SE9301270D0 (sv) * | 1993-04-19 | 1993-04-17 | Biosensor | |
GB9618635D0 (en) * | 1996-09-06 | 1996-10-16 | Thermo Fast Uk Ltd | Improvements in or relating to sensors |
US5880552A (en) * | 1997-05-27 | 1999-03-09 | The United States Of America As Represented By The Secretary Of The Navy | Diamond or diamond like carbon coated chemical sensors and a method of making same |
CN1158527C (zh) * | 2001-05-22 | 2004-07-21 | 张道光 | 基因或蛋白质着床的生物芯片基板制法及成品 |
US6824974B2 (en) * | 2001-06-11 | 2004-11-30 | Genorx, Inc. | Electronic detection of biological molecules using thin layers |
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2001
- 2001-05-24 JP JP2001156086A patent/JP2002350447A/ja active Pending
-
2002
- 2002-05-14 WO PCT/JP2002/004661 patent/WO2002095408A1/ja active Application Filing
- 2002-05-14 EP EP02724784A patent/EP1403642A4/en not_active Withdrawn
- 2002-05-14 US US10/478,674 patent/US20040241883A1/en not_active Abandoned
- 2002-05-14 KR KR1020037015365A patent/KR100604680B1/ko not_active IP Right Cessation
- 2002-05-14 CN CNB028103904A patent/CN1333253C/zh not_active Expired - Fee Related
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JPH03503679A (ja) * | 1988-02-27 | 1991-08-15 | アマーシャム・インターナショナル・ピーエルシー | ハプテンの固定および測定 |
JPH08240555A (ja) * | 1995-03-01 | 1996-09-17 | Kobe Steel Ltd | ダイヤモンド薄膜バイオセンサ |
JPH10307139A (ja) * | 1997-04-14 | 1998-11-17 | Boehringer Mannheim Gmbh | 試薬スポットの形成方法 |
WO1999040173A1 (fr) * | 1998-02-09 | 1999-08-12 | Toyo Kohan Co., Ltd. | Substrats d'immobilisation et d'amplification de l'adn, cristaux de blocage d'adn avec de l'adn bloque sur les substrats, et procede d'amplification de l'adn |
JPH11242031A (ja) * | 1998-02-26 | 1999-09-07 | Dainippon Printing Co Ltd | O−157検出用測定チップ |
WO2000022108A1 (fr) * | 1998-10-15 | 2000-04-20 | Toyo Kohan Co., Ltd. | Supports utilises pour immobiliser de l'adn ou autre |
JP2000314714A (ja) * | 1999-04-30 | 2000-11-14 | Canon Inc | 電極及びその製造方法及び該電極を用いた電気化学センサー |
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See also references of EP1403642A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1610121A1 (en) * | 2003-03-25 | 2005-12-28 | Japan Science and Technology Agency | p CHANNEL FILED EFFECT TRANSISTOR AND SENSOR USING THE SAME |
EP1610121A4 (en) * | 2003-03-25 | 2008-01-16 | Japan Science & Tech Agency | FIELD EFFECT TRANSISTOR WITH P-CHANNEL AND SENSOR USING THE SAME |
Also Published As
Publication number | Publication date |
---|---|
KR100604680B1 (ko) | 2006-07-25 |
US20040241883A1 (en) | 2004-12-02 |
CN1333253C (zh) | 2007-08-22 |
EP1403642A4 (en) | 2007-06-27 |
JP2002350447A (ja) | 2002-12-04 |
CN1511257A (zh) | 2004-07-07 |
EP1403642A1 (en) | 2004-03-31 |
KR20040004651A (ko) | 2004-01-13 |
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