WO2001059454A1 - Procede de detection d'une substance - Google Patents
Procede de detection d'une substance Download PDFInfo
- Publication number
- WO2001059454A1 WO2001059454A1 PCT/JP2001/000833 JP0100833W WO0159454A1 WO 2001059454 A1 WO2001059454 A1 WO 2001059454A1 JP 0100833 W JP0100833 W JP 0100833W WO 0159454 A1 WO0159454 A1 WO 0159454A1
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- WIPO (PCT)
- Prior art keywords
- carrier
- signal
- substance
- detected
- compound
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Classifications
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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
- G01N33/50—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
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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
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/58—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances
- G01N33/582—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances with fluorescent label
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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
- G01N33/50—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
- G01N33/536—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase
-
- 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
- G01N33/54306—Solid-phase reaction mechanisms
Definitions
- the present invention relates to a method for detecting a specific substance, a reagent for detecting a specific substance, and an apparatus for detecting a specific substance.
- Landscape technology a method for detecting a specific substance, a reagent for detecting a specific substance, and an apparatus for detecting a specific substance.
- the method of confirming the function of a protein is to start by searching for a substance having an affinity for the protein, and then to infer the role of the protein by genetically controlling the expression of the protein using an organism.
- the protein to be purified is immobilized on a carrier, packed into a column, and substances that are presumed to have various affinities are passed through the column, and whether the substance passes through or is adsorbed on the column is detected. There is a way.
- This chip uses a semiconductor technology to bind a specific protein to a specific location on the chip, contact a sample with this to bind a substance to the protein, and detect this bond with a label.
- a semiconductor chip is used or fine processing is always required, and proteins immobilized on the chip bind to each other via something, detection is impossible. Atsushi.
- gene mutations are being tested for use in diagnosing diseases and suppressing the effects and side effects of drugs.
- gene mutations are diverse, it is necessary to prepare various types of DNA sequences and detect DNA that hybridizes in each case. You.
- the DNA chip is used to solve this problem, but has the same problem as above.
- beads of several ⁇ m in size are impregnated with various types of fluorescent dyes in various ratios, and the fluorescence emitted by these is analyzed at two wavelengths and the two wavelengths are analyzed.
- the ratio of the fluorescence intensities is used as a means of discriminating individual beads, and the substance to be detected, such as protein or DNA sequence, is matched.
- the beads are trapped in a small bottle and analyzed by fluorescence intensity.
- An object of the present invention is to provide an inexpensive and highly versatile method for detecting a specific substance, a reagent for detecting a specific substance, and a device for detecting a specific substance.
- the inventors of the present invention attached a signal A that can be read from the outside to a minute carrier, and bound a substance having a binding ability (hereinafter, referred to as a connector) to a substance to be detected such as protein or DNA.
- a substance to be detected such as protein or DNA.
- the carrier with the signal A and the detection device The same result as a protein or DNA chip can be obtained by binding a substance having a binding ability to a substance to be detected to a carrier even without a sophisticated protein or DNA chip technology. According to the present invention, it is easy to prepare a large number of carriers having a signal corresponding to the kind of the substance even when many completely different substances are similarly detected, and the experimenter can freely combine the signal and the sequence. Has the characteristic that it can be determined In the case of a protein or DNA chip, it is necessary to recreate a protein or DNA chip when changing the type of specimen, etc., and it is not versatile, but the carrier of the present invention has a substance such as protein or DNA bound thereto. It can be prepared by binding a desired protein or a substance such as DNA to a non-supporting carrier by a conventional method, and can easily cope with a variety of inexpensive substances.
- the present invention relates to the following (1) to (36).
- a carrier that has a shape that does not bind to the substance to be detected and that can bind to the substance to be detected (hereinafter abbreviated as a conjugate) via a spacer or without a discriminating signal.
- a carrier having A and a sample containing the substance to be detected are mixed in a solution, the substance to be detected is bound to the connector, and the signal B is formed on the carrier by the binding.
- a sample characterized in that the carrier suspension flows through the hollow tube by a solution supply means communicating with an empty pipe, and the signal A and the signal B are detected by the signal detection means, and the signal A and the signal B are associated with each other. Of the substance to be detected.
- the signal B on the carrier is formed by binding a compound having a label capable of recognizing the hybridization between the base sequence of the connector and the base sequence of the substance to be detected (3) to (3).
- a compound having a label capable of recognizing iv hybridization is labeled with a compound having a base sequence complementary to the remaining base sequence other than the complementary sequence to the base sequence of the connector of the substance to be detected.
- the compound is a compound obtained by bonding with a compound
- the compound having a base sequence complementary to the remaining base sequence other than the complementary sequence to the base sequence of the connector of the substance to be detected is a DNA having 5 to 500 bases: RNA or PNA The method described in the above statement 3 (8).
- the compound having a label capable of recognizing the hybridization is a compound obtained by binding the labeling compound to the in-one-one-one-one-one-one-recognition reagent for recognizing the hybridization.
- the labeling compound is a fluorescent substance, a luminescent substance, an enzyme, or a compound that emits fluorescence or luminescence by an enzyme.
- the hollow tube has a cylindrical shape and the carrier has a cylindrical shape having an outer shape smaller than the inner diameter of the hollow tube, and the length of the cylindrical shape is larger than the inner diameter of the hollow tube.
- the carrier is cylindrical and the outer diameter is 1 ⁇ !
- Signal detectors A and B capable of detecting at least two types of signals A and B on a carrier coupled with or without a spacer, wherein the signal detectors A and B flow through the carrier.
- the signal A on the carrier is associated with the specific substance, and the associated data is Equipped with a function to output to output means Characterized in that, the detection device of a specific substance.
- the signal A and the signal B overlap with the cross section of the hollow tube.
- Carrier that has a shape that does not move and that has an identifiable signal A in which a substance (conjugate) capable of binding to the substance to be detected is bound with or without a spacer. Is used.
- the carrier used in the present invention is insoluble in a solution.
- the signal A on the carrier may be any signal as long as it can be discriminated and identified, but a digital signal is preferred.
- the digital signal is not particularly limited as long as it is a digitized signal, and may be a signal represented by a combination of bar codes, fine dots, fine lines, and the like, and a bar code is preferable.
- the method of attaching the signal A to the carrier is not particularly limited.
- a method using a printing device capable of printing fine barcodes, fine dots, fine lines, or the like A method of changing the reflectance or refractive index into a linear dot shape, using a lens, etc., to optically finely reduce the pattern consisting of barcodes, lines, and dots, A method of changing the properties and then applying a bar code by a physical treatment such as chemical treatment or adsorption of toner, etc., and a photosensitive polymer that cures or decomposes with light, including dyes, pigments, carbon
- a method of applying a signal to the surface after coating and coating the surface, and then applying a signal by etching a method of composing the entire carrier with a photosensitive resin, an electromagnetic recording method And a method of causing a magnetic carrier on which a signal is recorded to be included.
- the shape of the carrier is not particularly limited as long as the applied digital signal can be read from the outside.
- the material does not move so as to overlap with the cross section of the hollow tube when flowing through the hollow tube.
- a fine material is preferable in terms of operability and a large surface area per unit area.
- the shape of a specific carrier used in a detection method using a hollow tube described later depends on the shape of the hollow tube, and includes a sphere, a polygonal column, a column, and the like. preferable.
- the signal A can be read from any position by attaching a plurality of signals ⁇ such as a two-dimensional bar code to the surface of the sphere, or magnetic particles in the carrier In the detection, the carrier can be stopped by the magnetic force for a short time, and the specific surface of the sphere can be directed to the detection direction by the magnetic force.
- a plurality of signals ⁇ such as a two-dimensional bar code
- the diameter of the carrier for example, in the case of a cylindrical shape, the diameter is 1 ⁇ !
- the length is preferably about 10 mm to about 2 cm.
- the diameter is preferably about 1 m to 2 mm.
- the specific gravity of the carrier is preferably about 0.8 to 2, more preferably 0.85 to 1.5, and particularly preferably 0.9 to 1.1.
- the difference in specific gravity between the carrier suspension solution and the carrier is preferably 0.1 or less, more preferably 0.05 or less, and particularly preferably 0.3 or less.
- Examples of the method of forming the carrier include a method of molding a polymer into a polygonal or cylindrical mold, and a method of cutting a polygonal or cylindrical fibrous material by various methods.
- a particulate carrier is manufactured by a suspension polymerization method using a polymer monomer, an emulsion polymerization method, etc. You can also.
- a film of a material that shrinks in one direction due to heat and a film of a material with little shrinkage are laminated, and after applying signal A and heating (with or without cutting), only one side is formed.
- signal A and heating with or without cutting
- Materials that shrink by heat include, for example, TFE shrink tubing, TOF shrink tubing, and Teflon shrink as described in Yamato Rika Co., Ltd.'s 2000 Plastic Scientific Instruments Integrated Power and Plastics edition. Examples include a fine or fibrous tube, a FEP shrink tube, and a nylon shrink tube.
- the carrier or the surface thereof is preferably made of a substance that hardly adsorbs a substance to be detected, such as at least a protein or a compound having a base sequence.
- the carrier is preferably hydrophilic, but even if it is a carrier, it is used because the surface can be finally physically treated or coated to reduce adsorption on the carrier surface. be able to.
- the natural polymer to be coated include chitosan, protein, hyaluronic acid and the like.
- the material of the carrier is not particularly limited, but is preferably a synthetic compound.
- Synthetic polymers generally used as plastic fiber materials are inexpensive and preferred.
- synthetic polymer compound used for the carrier for example, a synthetic polymer compound containing a hydroxyl group, an ester group, a carboxylamide group, an amino group, an imino group, a hydroxysuccinylester group, a maleimide group, a glycidyl group, or the like in a side chain is preferable.
- Examples of the monomers constituting these synthetic polymer conjugates include acrylic anhydride, methyl acrylate, ethyl acrylate, methyl methacrylate, and ethyl methacrylate (the above is hydrolyzed after polymerization), Ethylene oxide-containing (meth) acrylates such as hydroxystyrene, ethylene glycol (meth) acrylate, and triethylene glycol (meth) acrylate, and (meth) acrylate hydrochloride Hydroxyl group-containing (meth) acrylic acid ester, glycidyl (meth) acrylate, etc.
- Epoxy group-containing (meth) acrylate, methyl (meth) acrylate, ethyl (meth) Monoethylenic compounds such as alkyl (meth) acrylates such as acrylates, acrylamide, methylacrylamide, diacetoacrylamide, N-hydroxymethylacrylamide, ethyleneimine, and hydroxysuccinyl acrylate. .
- the synthetic polymer compound examples include a polymer composed of one of these monomers and a copolymer polymer composed of two or more of these monomers. These synthetic polymer compounds may form at least the surface layer of the carrier, and the inside may be a hydrophobic polymer such as polystyrene, polyacrylate, polyamide, or polyvinyl.
- the surface to which the binder is bound, with or without a spacer, is preferably prepared to contain functional groups. Further, a high molecular compound obtained by making these polymers hydrophilic by a reaction is also used.
- suitable polymer compounds include, for example, polymers of glycidyl methacrylate.
- the synthesis of the polymer compound varies depending on the type of the monomer and the type of the polymer compound, but can be synthesized by a known method.
- the spacer binds the carrier and the connector.
- the spacer include polyethylene glycol diglycidyl ether chain, single-stranded DNA chain, single-stranded RNA chain, and single-stranded peptide nucleic acid (abbreviated as PNA) peptide. Chains and the like can be given.
- the length of the polyethylene glycol diglycidyl ether chain is preferably 1 to 10 ethylene units, and more preferably 1 to 5.
- the base sequence of the strand may be any, but it has an amino group at the base, adenine (A) or guar.
- the length of the single-stranded DNA chain and the single-stranded RNA chain is preferably from 3 to 40 (Cmer), more preferably from 5 to 207- (mer).
- the number of peptide chains is preferably 1 to 50 mer, and more preferably 2 to 30 mer.
- the conjugate is not particularly limited as long as it is a substance capable of binding to the substance to be detected. Examples thereof include a substance having a base sequence complementary to the base sequence of the substance to be detected or a partial sequence thereof in the sample, a protein capable of binding to the substance to be detected, and a peptide.
- the nucleotide sequence to be detected or its partial sequence is not particularly limited for detection as long as it has a nucleotide sequence, but nucleotide sequences derived from genes involved in various traits, genes involved in diseases, etc. Is preferred. Examples include the HCV gene, tumor suppressor gene sequence, WT-1, Klotho gene, Gyr B gene, drug resistance gene, obesity gene and the like.
- proteins capable of binding to the substance to be detected include various receptors, antibodies against various antigens, and lectin proteins.
- a ligand or an antigen that binds to the receptor or the antibody can be used.
- the reception evening include a VEGF reception evening, an IL-2 reception evening, an Fc reception evening, and the like.
- Antibodies include, for example, anti-HCV antibodies, anti-HBs antibodies, anti-HBe antibodies, anti-GAD antibodies, anti-CRP antibodies, anti-CEA antibodies, and anti-HCV antibodies.
- the protein may be a protein extract from a tissue extract, a cell extract, or a gene obtained by introducing a gene for a required protein into a cell or the like and expressing the protein. Can be introduced to form a connector.
- the binder is a low molecular weight compound
- the low molecular weight compound can be used as it is as long as it is a substance having a functional group. It can be.
- DNA and RNA DNA, RNA and the like having a functional group introduced into the terminal can be used as the conjugate.
- the number of bases of the substance having a base sequence to be detected or a base sequence complementary to a partial sequence thereof in the sample is 5 to 500 bases, more preferably 10 to 300 bases, and particularly preferably 15 to 200 bases. It is a DNA, RNA or PNA having a base sequence complementary to the base sequence to be detected normally.
- the base sequence of the substance can be designed based on these known sequences.
- the substance having the base sequence include: For example, a single-stranded DNA chain, a single-stranded RNA chain, a single-stranded DNA and the like can be mentioned.
- a nucleotide sequence of the substance to be detected in the present invention a nucleotide sequence of a gene known to have an internal point mutation of a known sequence can also be applied.
- the position of the base complementary to the mutation-causing base in the bond is preferably three or more bases at both ends of the bond, and particularly preferably the center of the bond.
- a conjugate having a base sequence complementary to the base sequence of the substance to be detected in the sample or a partial sequence thereof for example, when the conjugate is DNA, use a carrier such as a sily force to perform a chemical synthesis reaction of DNA. It can be synthesized by using a solid phase method or the like which has been automated by the solid phase method.
- a reaction substrate a nucleotide derivative obtained by protecting the amino group of base and 5'-OH of ribose with a protecting group and bonding diisopropylphosphoramidite to 3'- ⁇ H of ribose is used.
- the protecting group for the amino group of the base examples include a benzoyl group and an isobutyl group
- examples of the protecting group for 5′-OH of ribose include a dimethoxytrityl group.
- the starting material is a column in which a nucleotide of any of adenine, thymidine (T), cytosine, and guanine, whose amino and 5'-OH groups are protected, is fixed to the support via 3'-OH.
- T thymidine
- cytosine cytosine
- guanine whose amino and 5'-OH groups are protected
- both bonds are converted into stable phosphotriester bonds with iodine and water.
- the cycle of the detritylation and the condensation reaction is repeated, and finally, the deprotection group and cleavage from the support are performed by ammonia treatment.
- DNA as a target connector can be synthesized.
- the primer is a single-stranded DNA
- the sequence may be further synthesized continuously, and its length is preferably 3 bases or more, and thereby the DNA spacer is synthesized. Can be synthesized.
- a method of binding a protein as a binder to the carrier surface includes a side chain or terminal carboxyl group amino group, glycidyl group, thiol group, hydroxyl group, amide group, imino group, hydroxysuccinyl ester group, and maleimide group. , Such, 2 It is desirable to have a group that can react and chemically bond, but if there is no such group, a method of exposing these groups that can be reacted by physical or badly treatment such as UV or radiation may be used. It is possible. It is also possible to coat the surface with another polymer to create a functional group.
- a generally known chemical method for example, a method of binding an amino group to a carboxyl group of a protein with a functional group on the carrier is known. Condensation with carbodiimide, etc., or the reaction of a carboxyl group with an active ester to react with an amino group, or a method in which a thiol or maleimide is attached to a carrier, and then reacted with the maleimide dithiol group of the binder.
- any method can be used, such as a method in which an isothiocyanate group, a glycidyl group, or an N-hydrosuccinimide group is added to this, and this is reacted with an amino group of a connector.
- the carrier thus prepared may be treated with BSA or the like to suppress nonspecific adsorption or reaction, and then subjected to blocking.
- the binding between the protein and the carrier can be performed, for example, as follows. Ammonium hydroxide or hexamethylene diamine hydrochloride is added to the carrier particles in an amount of 10 to 100 times the molar amount of the epoxy group, and 0.5 to 2 at 60 to 70 ° C and a pH of 10 to 12. After reacting for days, the surface of the particles is aminated. After the reaction, the mixture is washed by centrifugation, and if necessary, dialyzed with ion-exchanged water to remove unreacted hydroxylamine or hexamethylenediamine hydrochloride.
- a polyethylene glycol diglycidyl of 50 to 200 times the molar amount of the amino group is added, and the pH is adjusted to 10 to 12 at a temperature of 2,0 to 40 ° C.
- the spacer and the carrier are bound.
- the bonding between the epoxy group of the spacer and the protein is performed according to the method described above.
- the carrier used to bind DNA or the like to the carrier surface includes a carboxyl group, a amino group, a glycidyl group, a thiol group, a hydroxyl group, an amide group, an imino group, and a hydroxysuccinyl ester group having a side chain or a terminal on the carrier surface.
- a compound having a group that can react and chemically bond, such as a maleimide group or the like, can be used as it is. However, even if there is no such group, such a group can be obtained by physical or chemical treatment such as UV or radiation. 3 It can be used by exposing the available groups.
- the surface can also be coated with another polymer to create functional groups.
- a generally known chemical method for example, a carbodiimide known as a method of binding DNA or the like to an amino group ⁇ carboxyl group on the surface of the carrier is used.
- a carbodiimide known as a method of binding DNA or the like to an amino group ⁇ carboxyl group on the surface of the carrier is used.
- condensation with a carboxyl group as an active ester and reaction with an amino group or attaching a thiol or maleimide to a carrier and reacting it with DNA having a maleimidothiol group or isothiocyanate on the carrier.
- Any method can be used, such as a method in which a mono-, glycidyl, or N-hydrosuccinimide group is added and reacted with an amino group.
- a method of synthesizing DNA or the like by successively polymerizing nucleic acid bases on the carrier surface using a method known as DNA synthesis method or the like can also be used.
- the bonding method of the carrier, the spacer, and the connector can be determined according to the type of the spacer, the type of the carrier, and the type of the connector.
- the carrier is generally obtained by bonding the amino group of the base at the terminal of the DNA connector to the epoxy group, carboxyl group, aldehyde group, hydroxyl group, etc. of the carrier or spacer.
- the connector is DNA
- the carrier is generally obtained by bonding the amino group of the base at the terminal of the DNA connector to the epoxy group, carboxyl group, aldehyde group, hydroxyl group, etc. of the carrier or spacer.
- the connector is DNA
- the binding between the DNA binder and the carrier is performed, for example, as follows.
- a DNA connector having a spacer of DNA and a single-stranded DNA having a sequence complementary to the connector and having no spacer sequence are synthesized.
- the two are hybridized to form a double strand, the amino group in the base having the base sequence to be detected is protected, and the amino group in the base of a part of the free spacer (an amino group is introduced into the terminal as necessary) Is bonded to the epoxy group of the carrier.
- the single-stranded DNA having a sequence complementary to the binder and having no spacer sequence can be released to prepare the desired carrier-bound DNA binder.
- the carrier prepared in this manner can be treated with BSA or the like in order to suppress nonspecific adsorption or reaction, and then subjected to blocking.
- Hybridization requires formamide, salt, protein, stabilizer, buffer as required And so on.
- this solution is referred to as a hybridization solution.
- the formamide concentration is 0-60%.
- the salt include inorganic salts such as sodium chloride and potassium chloride, and organic acid salts such as sodium citrate and sodium oxalate.
- the salt concentration is 0 to 2.0 M, preferably 0.15 to 1 M. .0 M.
- proteins include serum albumin and the like.
- stabilizer include ficoll.
- the buffer include a phosphate buffer and the like, and the concentration is preferably 1 to 10 O mM.
- single-stranded DNAs synthesized in a hybridization solution are added at an equimolar concentration, and the mixture is added at 50 to 90 ° C. It can be done by heating for a minute to 6 hours and then gradually cooling.
- the carrier particles having an epoxy group are washed with 1 to 100 mM phosphate buffer solution, and after equilibration of the particles, the carrier particles are mixed with the carrier in the same solution as the buffer solution used for washing. This is performed by mixing the double-stranded DNA having a spacer of the single-stranded DNA prepared by the method described above, and keeping the mixture at 20 to 50 ° C for 5 to 50 hours. After removing unreacted DNA by washing with an aqueous solution containing 1 to 3 M salts such as sodium chloride, unreacted epoxy groups present on the carrier are added to a Tris-HCl buffer solution at room temperature for 5 to 5 minutes. Keep the ring warm for 50 hours. Thus, double-stranded DNA bound to the carrier is prepared.
- washing is performed by using a hybridization solution at 50 to 90 ° C. and centrifuging 1,000 to 100,000 g several times.
- the spacer is polyethylene glycol diglycidyl
- the binder is a DNA chain
- the carrier has an epoxy group on the surface
- the binding between the DNA binder and the carrier is performed by the aforementioned spacer and the binder. This can be performed in the same manner as in the case where the carrier is single-stranded DNA and the carrier has an epoxy group on the surface.
- the specific connector S 1 When coupling the connector to the carrier having the signal A described above, the specific connector S 1 is coupled to the carrier having the signal A 1. Similarly, another connector S 2 is bound to the carrier with A 2 of signal A. For example, a specific connector S1 is coupled to a carrier to which a barcode signal 01 is allocated, and another specific connector S2 is coupled to a carrier to which a barcode number 02 is allocated.
- the types of the binders that can be detected in one reaction as long as the specific binder can be associated with the signal A and identified.
- the biopsy sample used for the detection is prepared as it is from various organs, tissues, blood, etc. or by a method for extracting and purifying nucleic acid molecules such as low molecular compounds, proteins, DNA, RNA and the like.
- the sample used for detection is DNA or RNA
- it can be prepared by a known DNA or RNA extraction method from various organs, fibres, blood, and the like.
- the isolated DNA or RNA is cleaved with a specific restriction enzyme or the like and contains a specific base sequence to be detected.A single strand having a length of 5 to 500 mers, preferably 10 to 300 mers.
- the base sequence of DNA or the like in the sample those amplified by PCR, TMA or NA SBA can also be used.
- TMA or NA SBA can also be used as the base sequence of DNA or the like in the sample.
- Invention of the present application In the above, when a base sequence in a biological sample is detected, it is only necessary to fragment DNA and the like. Not only biological samples but also compounds having a base sequence produced by synthesis or the like can be used as samples.
- the binding between the substance to be detected and the conjugate in the sample is performed with an aqueous solution containing salts, proteins, stabilizers, buffers, surfactants, and the like, as necessary.
- the salt include inorganic salts such as sodium chloride and sodium chloride, and organic acid salts such as sodium citrate and sodium oxalate.
- the salt concentration is 0 to 2.0 M.
- the protein include serum albumin.
- the buffer include a phosphate buffer and the like, and the concentration is preferably 1 to 10 O mM.
- the binding can be carried out by heating at 10 to 70 ° C .:! To 60 minutes, and then cooling if necessary.
- a carrier having an identifiable signal A in which a connector is bound with or without a spacer and a sample containing a substance to be detected are mixed in a solution, and the substance to be detected and the carrier are mixed.
- the following describes a method for combining the above-mentioned connectors to form a new signal B on the carrier.
- the connector when the connector is a protein, it can be carried out as follows.
- the signal B may be any signal as long as it is a signal resulting from the binding between a substance such as a protein to be detected and a substance such as a protein on the carrier (one of them is a protein).
- the increase in weight may be measured directly using the resonance phenomenon, but a method in which a labeled compound is bound to an antibody that recognizes the substance to be detected and the label is used as signal B, or an antibody that recognizes the connector
- the connectors are linked via a substance to be detected such as a protein, the signal A of one of the connectors can be detected as the signal B.
- the conditions for binding the protein to be detected and the conjugate are usually performed in an aqueous solution under conditions that do not alter the protein.
- an aqueous solution having a buffer capacity of about PH 3-11 which may contain a surfactant or an auxiliary agent for maintaining the function of the protein
- the temperature is preferably 1 to 90 ° C. Is about 5 to 60 ° C.
- the labeled compound not bound to the conjugate and the remaining substances in the sample are then Separation and removal are performed by centrifugation or filtration.
- the labeling compound examples include a fluorescent substance, a luminescent substance, an enzyme, and a compound which emits or emits fluorescence by the enzyme.
- the fluorescent substance examples include fluorescein isothiocyanate (hereinafter abbreviated as FTC), Texas Red (Texas Red), and the like.
- Examples of the luminescent label include an acridinium derivative and a ruthenium complex compound.
- U.S. Pat.Nos. 4,918,192, 4,946,58, 4,950,613 and Clin.Chem. 29 (8), 1474-1479 ( 1983) are preferred.
- the ruthenium complex compound is preferably the one shown in Clin. Chem. 37 (9), 1534-1539 (1991), and this compound emits electrochemical light with an electron donor.
- Examples of the substrate that is a compound that emits fluorescence or light by an enzyme include, for example, a substrate for peroxidase, such as a lumino-irradiated compound and a lucigenin compound.
- a substrate for peroxidase such as a lumino-irradiated compound and a lucigenin compound.
- Akurin two ⁇ beam phosphate Derivatives such as APS 2, APS 3, and APS 5 are listed above [Lumigen Inc's luminescent compound, H. AMiavan-Tafti'Z. Arghavaiii et al John Wileyana Sons, Cnichester, 497-500 (1997)].
- the labeling compound is a fluorescent substance
- the fluorescent substance is also bound to the carrier, and when exposed to light, the phenomenon in which the other fluorescent substance bound by energy transfer from one fluorescent substance emits fluorescence. It can also be used for labeling.
- a small hollow tube through which the solution containing the carrier passes is placed in the detection section of the fluorescence detector.
- Methods such as those currently used all over Celso can also be suitably used.
- a light source is not required, but if necessary, a reagent for starting light emission or a device for applying energy is preferably provided.
- a photon counter with high sensitivity is suitable, but if the luminescence is strong, the optical section of a fluorescence detector can also be used.
- a signal having an identifiable signal A in which a conjugate having a nucleotide sequence complementary to the nucleotide sequence to be detected or a partial sequence thereof is bound with or without a spacer.
- the carrier and the sample containing the base sequence to be detected are mixed in a solution, and the base sequence to be detected and the base sequence having a complementary base sequence on the carrier are hybridized, whereby a new The method for forming the signal B on the carrier is described below.
- the signal B may be any signal as long as it is formed by hybridization between the base sequence to be detected and a base sequence having a complementary base sequence on the carrier and is caused by a double strand. May be measured, but a method of binding a compound having a label capable of recognizing hybridization forming a duplex is preferable.
- the compound having a marker capable of recognizing hybridization between the base sequence of the connector and the base sequence of the sample include, for example, a residue other than the complementary sequence to the bond between the labeled compound and the specific base sequence in the sample.
- a compound in which a base sequence complementary to a base sequence is bonded (hereinafter abbreviated as a labeled conjugate), and a labeled compound is bound to an antibody that recognizes hybridization between the base sequence of the conjugate and the base sequence of the sample
- a labeled conjugate A compound in which a compound, a labeled compound, and an intercalator that recognizes hybridization between the base sequence of the connector and the base sequence of the sample are combined.
- Hybridization is performed under stringent conditions using the above-mentioned hybridization solution.
- a sample containing a DNA binder-binding carrier and a DNA fragment is added to the hybridization solution, and the mixture is added at 50 to 90 ° C, preferably 60 to 75 ° C, for 1 minute to 24 hours.
- a compound that has not hybridized to the connector has a base sequence that is complementary to the intermediate bond in the sample, and a compound that does not form a complex with the carrier that has signal A.
- Recognition of hybridization between the labeled compound, the base sequence of the binder and the base sequence of the sample, and the compound in which the base sequence complementary to the remaining base sequence other than the complementary sequence to the base sequence If necessary, centrifuge the compound that binds to the antibody, or to the compound that binds the labeled compound, the base sequence of the conjugate and the base sequence of the sample, and the compound that recognizes the hybridization. Alternatively, they are separated by a filtration operation or the like.
- the detection of a compound or the like that has been combined with a curry or the like can be performed according to the type of label of the compound.
- Examples of the labeling compound include the compounds described above, for example, a fluorescent substance, a luminescent substance, or a compound which emits fluorescence or light by an enzyme.
- a compound such as ethidium diamide or 4 ', 6-Diamidino-2-phenylindole Dihydrochlonden n-Hydcate (DAPI) SYBR Green (produced by oleculai' Probe), Pico Green (produced by Molecular Probe 2-methyl-4,6-bis- (4- —, ⁇ -dimethylaminophenyl) pyrylium (manufactured by Canon Inc.), 2-methyl-4,6-bis-1 (4- ⁇ , ⁇ - Examples include dimethylaminophenyl) thiopyrylium (manufactured by Canon Inc.).
- a light-emitting compound such as acrylidium ester which can decompose and emit no light under alkaline conditions if not hybridized can be suitably used.
- a DNA conjugate having a sequence complementary to the sequence near the hybridization site is separately added and hybridized, and then the unhybridized labeled conjugate is removed. It is preferable that the labeling conjugate is bound to only the hybridized product.
- a method using a centrifugal separation filter is preferable. No, instead of removing the labeled conjugate that has not been hybridized, the labeled conjugate that has not been hybridized may be inactivated.
- the labeling compound is a fluorescent substance
- the fluorescent substance is also bound to the carrier, and when exposed to light, the phenomenon that one fluorescent substance that is hybridized by energy transfer from one fluorescent substance emits fluorescence is used It can also be labeled.
- D ⁇ ⁇ in the sample or the hybridization portion of RNA A label to which a fluorescent substance of DNA having a sequence complementary to the sequence of the close part is bound is added and hybridized. When light is applied, energy is transferred from one fluorescent substance to the other fluorescent substance, and only the hybridized substance emits fluorescence, so if there is no complementary DNA sequence or RNA on the carrier, the fluorescence is weak or no, Those with complementary DNA or RNA sequences on the carrier will be or will have strong fluorescence.
- the part of a small hollow tube through which the solution containing the carrier passes is placed in the detection part of the fluorescence detector.
- Methods such as those currently used all over Celso can also be suitably used.
- a light source is not required, but it is preferable to provide a reagent for starting light emission or a device for applying energy.
- a photon counter with high sensitivity is suitable, but if the luminescence is strong, the optical unit of a fluorescence detector can also be used.
- the hollow tube is formed of a thin tube and has a cylindrical shape
- the hollow tube has a shape that allows the carriers to pass through the cylindrical shape one by one in the longitudinal direction.
- the solution supply means connected to the hollow tube preferably has a hollow tube portion which gradually narrows and continues to the minute empty tube. It is preferable to use a method in which the carrier is finally communicated with a hollow tube having a diameter set so that two carriers cannot pass at a time through the tube of the solution supply means that gradually narrows. Carriers can be prevented from being clogged by loosely narrowing. .
- a carrier hybridized with DNA or RNA or a non-hybridized carrier is allowed to pass through the hollow tube.
- the hybridized carrier emits or emits light, or ⁇ ⁇ indicates the emission intensity.
- the carrier signal is related to the corresponding base sequence, and the presence or absence of the DNA or RNA sequence to be detected is displayed. As a result, it is possible to detect the presence of a base sequence corresponding to the signal shown in the carrier having fluorescence or luminescence (or strong fluorescence or luminescence intensity) in the sample.
- the detector If it takes a long time for the entire carrier to pass because the detector is small, use multiple detectors for signal and fluorescence or luminescence. In addition, they can be installed in parallel in the flow channel, and the information detected by each detection unit can be accumulated in the data processing means and analyzed.
- This solution is passed through a tube with a small hollow tube through which the above-mentioned carrier passes one by one.
- the signal A of the carrier and the carrier when the base sequence to be detected is present in the sample
- the signal B formed above can be detected almost simultaneously, but may be detected separately as long as it can be determined that the signals A and B originate from the same carrier.
- many devices have been developed to read digital signals accurately, but any device that can read minute signals can be used as long as it has the ability to read minute signals.
- a method of reading a minute digital signal there is a method of optically enlarging, for example, a method of reading with a principle such as no-code evening scan, or a method of once capturing an image with a CCD camera or the like and enlarging or directly reading it with a reading device. And a method of irradiating a carrier with a minute laser and reading with reflected light or transmitted light.
- a method of optically reading with a laser is preferable as in the case of CD and the like.
- the concentration of a substance to be detected, such as DNA, in a sample can also be determined by preparing a calibration curve using a known amount of a substance to be detected, such as sample DNA, in advance.
- a lysate of a certain cell as a sample various proteins or low-molecular compounds are bound to the carrier, and a fluorescently labeled compound or a luminescent labeled compound is bound to an antibody against the various proteins or low-molecular compounds bound to the carrier as a label. If you use something, If a substance having an affinity for various bound proteins or low-molecular-weight compounds is present in the sample, the labeled antibody cannot react, and the conjugate corresponds to a carrier to which no fluorescently labeled compound or luminescently labeled compound is bound. This means that a substance with high affinity exists in the sample, and the search for the substance in the cells can be found in one operation.
- DNA when DNA is bound to the carrier, it is possible to detect the presence of a protein having affinity for the DNA, for example, a protein that binds to the DNA expression promoter. Further, in this case, when a substance capable of binding the proteins attached to the carriers is present in the sample, the two carriers associate with the surface where the binder is present facing each other. At the time of detection, the substance can be detected by adjusting the direction of a bar code or the like and the time interval of detection so that this association can also be determined.
- the present invention can also be applied to elucidating the function of a protein encoding such a sequence of unknown function.
- the gene fragment is located 5 ′ upstream, and a gene sequence encoding a green fluorescent protein (hereinafter referred to as GFP) is ligated to the 3rd and downstream sites, and the protein encoded by the gene is fused to GFP.
- GFP green fluorescent protein
- the labeling compound used in the above examples is not necessarily GFP, and any protein can be used as long as it can express a protein from a gene by genetic engineering and has a certain signal itself.
- aequorin and luciferase Enzymes such as can also be used in the detection system.
- a certain protein and a protein or a low-molecular substance that binds to the protein or a substance that acts on the protein such as Promote interact and bind in a solution that is close to the conditions in the living body.
- the protein is attached to a carrier, an interacting substance is added thereto, and the mixture is incubated to form a complex of the protein and the substance interacting with the protein on the carrier.
- the surfaces bound by the two carriers face each other and associate.
- a labeled compound that binds to the complex and reveals its type is further reacted to detect the presence or absence of the label. In this way, it can be determined whether or not there is a protein and a substance that interacts with the protein.
- FIG. 1 shows a schematic diagram of the device of the present invention.
- FIG. 2 shows a schematic diagram of the device of the present invention.
- Fifty carriers having barcode 01 are dispersed in 10 ml of HEPES buffer, and have a base sequence of SEQ ID NO: 1 consisting of 15 bases having an amino group at the 5 ′ end.
- the carrier to which the oligo DNA having the nucleotide sequence of SEQ ID NO: 1 is bound is blocked in a 1% BSA solution, washed with distilled water, and a barcode 01 to which the oligo DNA having the nucleotide sequence of SEQ ID NO: 1 is bound.
- the terminal 5 AAA in the nucleotide sequence of SEQ ID NO: 1 is inserted as a spacer.
- oligo DNA having the nucleotide sequence of SEQ ID NO: 2 consisting of 15 bases having an amino group at the terminal is bound to 50 carriers having barcode 02, and the same treatment is performed.
- a carrier having a barcode 02 to which an oligo DNA having a sequence was bound was prepared.
- FITC fluorescein isothiocyanate
- An oligo DNA having the nucleotide sequence of SEQ ID NO: 4 having a sequence complementary to the nucleotide sequence of SEQ ID NO: 1 and the nucleotide sequence of SEQ ID NO: 3 was prepared, and TE buffer solution (lOmmo 1 / L Tris, 1 mmo 1 / L EDTA) was dissolved at a concentration of 1 nmo 1 / ml to prepare a test solution.
- Oligo DNA having the nucleotide sequence of SEQ ID NO: 5 that has a sequence that is not complementary to the nucleotide sequence of SEQ ID NO: 1 and SEQ ID NO: 3, and dissolve it in TE buffer at a concentration of 1 nmo1 / m1. To prepare a specimen.
- the detection apparatus shown in FIG. 1 was prepared, and barcode and fluorescence were detected while passing each solution prepared in ⁇ 13 (5) through a hollow tube in the signal detection means.
- the barcode reader uses a hand laser scanner SL-114 manufactured by Niei Intec Co., Ltd.
- the c- fluorescence detector uses a Hitachi F-4000 fluorescence spectrophotometer and emits light at an excitation light wavelength of 495 nm and an emission wavelength of 520 nm. The strength was measured.
- the hollow tube was a quartz glass tube with an inner diameter of 2 mm and a flow rate of 0.6 cm / sec. Since the time difference between the barcode signal and the fluorescence signal detection was 36 seconds, the fluorescence signal on the carrier with the specific barcode was matched according to the time difference. '
- the maximum value of the fluorescence intensity monitored while taking noise into account was defined as the fluorescence intensity
- the average of the fluorescence intensities of the five barcode 02 carriers having the same base sequence was defined as 1.
- the fluorescence value corresponding to the barcode 01 carrier was remarkably high.
- the fluorescence value corresponding to the carrier having any of the barcode signals is not obtained.
- the low level indicates that the specific sequence can be specifically detected by the method of the present invention.
- Example 1 the average of the fluorescence intensities of the carriers of the five barcodes 02 having the same base sequence was indicated as 1, as in Example 1.
- Acrydinium I (manufactured by Dojin Chemical Co., Ltd.) is bound to oligo DNA having an amino group at the 6th guanine from the 5 'end of the oligo DNA having the base sequence of SEQ ID NO: 3, to prepare a 2 nmo 1 / ml solution. (Hereinafter acridinium labeling conjugate Abbreviated).
- Sample DNA having the base sequence of SEQ ID NO: 4 prepared in (4) of Example 1 in 500 ⁇ L of sulf at e, 0.4 mol L LiCl, 2 Ommo 1 / L EGTA, 2 Ommo 1 / L EDTA Then, add 10 ⁇ L of the sample DNA or TE solution having the base sequence of SEQ ID NO: 5, and further add the above-mentioned acridinium-labeled conjugate solution to 0.1 lpmol / L, and slowly add each at 60 ° C.
- the detection was performed using an apparatus in which the signal detecting means in FIG. 1 was changed to FIG.
- the sample after the reaction was passed through a Ju part, after detecting a signal at barcode one drill one da one further second figure 2mo 1 LN a OH solution containing 0. 03% H 2 0 2
- the mixture was introduced into the sample from the reagent supply means shown in (1) and mixed with the sample in a tube.
- the luminescence intensity was measured using the detection unit of a Lumicounter 2500 luminescence detector (Microtech Nichion). A clear chemiluminescence count could be detected only in the sample that had reacted with DNA having the nucleotide sequence of SEQ ID NO: 4 on the carrier with the barcode.
- a carrier having signal A was produced in the same manner as in Example 1 (1).
- WSC water soluble carbodiimide
- the sil group was succinimidated, the carrier was once washed with the same buffer, and immediately thereafter, 10 ml of a buffer containing anti-human immunoglobulin chain antibody l ⁇ mo1 / ml was added to immobilize the antibody.
- FITC fluorescein isothiocyanate
- the fluorescent binding source solution prepared in (3) above was added to 10 ml of 0.05mo 1 / L HEPES buffer (pH7) containing 5 each of the carriers having the barcodes 01 and 02 prepared in (2) above.
- A, 100 L and solution B, 100 ⁇ L were added to the mixture and heated at 37 ° C. for 30 minutes under slow stirring. '
- the carrier prepared in (3) above was added to 10 ml of 0.05mo1 / L HEPES buffer (pH7) containing 5 carriers each having the barcodes of 01 and 02 produced in (2) above.
- the combined i solution 100 / L and solution B, 100 ⁇ L was added, and the mixture was heated at 37 ° C for 30 minutes under slow stirring.
- a detector as shown in Fig. 1 and Fig. 2 was prepared, and the barcode and fluorescence were detected while passing the X and Y solutions prepared in (4) above through the hollow tubes in the detector.
- Bar code reader is Nichiei Intec's laser scanner S L-11
- Hitachi F-40000 type fluorescence spectrophotometer was used to measure at an excitation light wavelength of 495 nm and a fluorescence wavelength of 5200 nm.
- the hollow tube was a quartz glass tube with an inner diameter of 2 mm and a flow rate of 0.6 cm / sec. Since the difference between the barcode signal and the fluorescence signal detection was 36 seconds, the fluorescence signal on the carrier having a specific barcode was matched according to the time difference.
- the maximum value of the fluorescence intensity monitored while considering the noise was defined as the fluorescence intensity, and the average of the fluorescence intensities of the five barcode 02 carriers was indicated as 1.
- the fluorescence value corresponding to the carrier of the barcode 01 was remarkably high. That is, in the sample X having human IgG reacting with the anti-human IgG of barcode 01, the fluorescence corresponding to the carrier of barcode 01 is strongly detected, and in the case of sample Y, the barcode 0 is detected.
- the fluorescence values corresponding to the two carriers were remarkably high. That is, in sample Y having human IgM reacting with anti-human IgM of barcode 02, fluorescence corresponding to the carrier of barcode 02 was strongly detected.
- the fluorescence value did not increase, so that the method of the present invention was able to specifically detect a protein ( ⁇ 3 ⁇ 4) that reacts with a specific protein (antibody).
- a FITC-labeled polypeptide having the nucleotide sequence of SEQ ID NO: 6 consisting of 15 amino acids containing an avidin-binding peptide sequence having FITC at the amino terminus was synthesized, and a concentration of 2 nmol / ml in PBS containing 0.1% BSA. was dissolved in to prepare a food solution.
- FITC-labeled polypeptide having a base sequence of SEQ ID NO: 15 consisting of 15 amino acids and excluding an avidin-binding peptide sequence having FITC at the amino terminus was synthesized, and 0.1 mM BSA / PBS was added to 2 nmol. Specimens were prepared by dissolving at a concentration of 1 / ml.
- the amino acid sequence of SEQ ID NO: 6 prepared in (2) above was added to 10 ml of 0.05mo 1ZL HEPES buffer solution (pH 7) containing 5 carriers each having the barcodes of 01 and 02 produced in (1) above.
- the sample, the sample having the amino acid sequence of SEQ ID NO: 7, or the polypeptide-free 0.1% BSA / PBS was added in an amount of 100 zL, and the mixture was heated at 37 ° C for 30 minutes with gentle stirring.
- the mixture was filtered through a cellulose acetate 0.8 ⁇ m membrane filter (C080A047A, manufactured by Toyo Roshi Kaisha, Ltd.), washed twice with 0.05 mol / L HEPES buffer (pH 7), and washed again with the same buffer.
- the carrier was dispersed in 10 ml.
- the detection devices shown in FIGS. 1 and 2 were prepared, and the barcode and the fluorescence were detected while passing each solution prepared in the above (3) through the hollow tube in the detection device.
- the barcode reader uses a hand laser scanner SL-114 manufactured by Niei Intec Co., Ltd.
- the fluorescence detector uses a Hitachi F-400 fluorescence spectrophotometer, and the excitation light wavelength is 495 nm and a fluorescence wavelength of 520 nm.
- the hollow tube was a quartz glass tube with an inner diameter of 2 mm and a flow rate of 0.6 cmZ seconds. Since the difference between the barcode signal and the fluorescence signal detection was 36 seconds, the fluorescence signal on the carrier with a specific barcode was matched according to the time difference.
- the fluorescence intensity is shown as the maximum value of the fluorescence intensity monitored while taking noise into consideration, and the average of the fluorescence intensities of the five barcode 02 carriers when there is no sample is shown as 1. .
- the fluorescence value corresponding to the barcode 01 carrier was remarkably high. That is, in the sample of SEQ ID NO: 1 having a peptide sequence that reacts with avidin of barcode 01, the fluorescence corresponding to the carrier of barcode 01 is strongly detected, while in the case of the sample of SEQ ID NO: 2 and no sample, Since the corresponding fluorescence value of the carrier having any of the barcode signals did not increase, the polypeptide sequence specifically reacting with a specific protein (avidin) could be detected by the method of the present invention.
- the present invention provides an inexpensive and highly versatile method for detecting a specific base sequence, a reagent for detecting a specific base sequence, and a method for detecting a specific base sequence.
- SEQ ID NO: 1 Description of Artificial Sequence: Synthetic DNA SEQ ID NO: 2 Description of Artificial Sequence: Synthetic DNA SEQ ID NO: 3 Description of Artificial Sequence: Synthetic DNA SEQ ID NO: 4—Description of Artificial Sequence: Synthetic DNA SEQ ID NO: 5—Artificial Sequence Description: Synthetic DNA SEQ ID NO: 6 Description of Artificial Sequence: Synthetic Peptide SEQ ID NO: 7 Description of Artificial Sequence: Synthetic Peptide
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Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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KR1020027008731A KR20020070471A (ko) | 2000-02-07 | 2001-02-07 | 물질의 검출방법 |
AU2001232231A AU2001232231A1 (en) | 2000-02-07 | 2001-02-07 | Method for detecting substance |
CA002398700A CA2398700A1 (en) | 2000-02-07 | 2001-02-07 | Method for detecting substance |
US10/182,613 US20050112564A1 (en) | 2000-02-07 | 2001-02-07 | Method of detecting substance |
EP01904323A EP1258730A4 (en) | 2000-02-07 | 2001-02-07 | METHOD FOR FINDING A SUBSTANCE |
MXPA02007576A MXPA02007576A (es) | 2000-02-07 | 2001-02-07 | Metodo para detectar una sustancia. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2000/29830 | 2000-02-07 | ||
JP2000029830 | 2000-02-07 |
Publications (1)
Publication Number | Publication Date |
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WO2001059454A1 true WO2001059454A1 (fr) | 2001-08-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2001/000833 WO2001059454A1 (fr) | 2000-02-07 | 2001-02-07 | Procede de detection d'une substance |
Country Status (8)
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US (1) | US20050112564A1 (ja) |
EP (1) | EP1258730A4 (ja) |
KR (1) | KR20020070471A (ja) |
CN (2) | CN100346163C (ja) |
AU (1) | AU2001232231A1 (ja) |
CA (1) | CA2398700A1 (ja) |
MX (1) | MXPA02007576A (ja) |
WO (1) | WO2001059454A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005049342A (ja) * | 2003-07-11 | 2005-02-24 | Sigma Koki Kk | 担体およびマイクロ検査素子とそれらの製造方法並びにレーザ加工機 |
WO2005106030A1 (ja) * | 2004-04-30 | 2005-11-10 | Olympus Corporation | 核酸の検出方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3916086B2 (ja) * | 2004-06-29 | 2007-05-16 | ソニー株式会社 | ハイブリダイゼーションなどの相互作用を検出する方法及び検出部、該検出部を備えるバイオアッセイ用基板、ハイブリダイゼーションなどの相互作用を検出する装置、並びに試薬キット |
CN111551713A (zh) * | 2020-05-15 | 2020-08-18 | 中国科学院过程工程研究所 | 一种covid-19病毒抗体检测微球及其制备方法和含该微球的试剂盒 |
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CN1030139A (zh) * | 1986-05-22 | 1989-01-04 | 尤尼利弗公司 | 一种新的免疫测定方法 |
US5706491A (en) * | 1994-10-18 | 1998-01-06 | Cyrix Corporation | Branch processing unit with a return stack including repair using pointers from different pipe stages |
JPH10104237A (ja) * | 1996-09-27 | 1998-04-24 | S R L:Kk | 免疫測定用担体及びそれを用いた免疫測定方法 |
GB9820163D0 (en) * | 1998-09-17 | 1998-11-11 | Sentec Ltd | Micro-fabricated coded labels, reading systems and their applications |
EP1071958A1 (en) * | 1999-02-17 | 2001-01-31 | Arcaris, Inc. | Methods for substrate-ligand interaction screening |
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2001
- 2001-02-07 AU AU2001232231A patent/AU2001232231A1/en not_active Abandoned
- 2001-02-07 CN CNB2005100790557A patent/CN100346163C/zh not_active Expired - Fee Related
- 2001-02-07 MX MXPA02007576A patent/MXPA02007576A/es unknown
- 2001-02-07 US US10/182,613 patent/US20050112564A1/en not_active Abandoned
- 2001-02-07 KR KR1020027008731A patent/KR20020070471A/ko not_active Application Discontinuation
- 2001-02-07 EP EP01904323A patent/EP1258730A4/en not_active Withdrawn
- 2001-02-07 WO PCT/JP2001/000833 patent/WO2001059454A1/ja not_active Application Discontinuation
- 2001-02-07 CN CNB018044549A patent/CN1237347C/zh not_active Expired - Fee Related
- 2001-02-07 CA CA002398700A patent/CA2398700A1/en not_active Abandoned
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JPH01131460A (ja) * | 1987-08-31 | 1989-05-24 | Sekisui Chem Co Ltd | 免疫測定用ビーズおよびこれを用いる免疫測定法 |
JPH0454456A (ja) * | 1990-06-25 | 1992-02-21 | Tosoh Corp | 免疫測定用担体の製造法 |
JPH0593726A (ja) * | 1991-10-01 | 1993-04-16 | Canon Inc | 検体測定の方法及び装置、並びにこれに用いる試薬 |
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Cited By (2)
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JP2005049342A (ja) * | 2003-07-11 | 2005-02-24 | Sigma Koki Kk | 担体およびマイクロ検査素子とそれらの製造方法並びにレーザ加工機 |
WO2005106030A1 (ja) * | 2004-04-30 | 2005-11-10 | Olympus Corporation | 核酸の検出方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1696693A (zh) | 2005-11-16 |
KR20020070471A (ko) | 2002-09-09 |
CN1237347C (zh) | 2006-01-18 |
MXPA02007576A (es) | 2004-08-23 |
CN1397020A (zh) | 2003-02-12 |
CA2398700A1 (en) | 2001-08-16 |
AU2001232231A1 (en) | 2001-08-20 |
US20050112564A1 (en) | 2005-05-26 |
CN100346163C (zh) | 2007-10-31 |
EP1258730A4 (en) | 2004-12-29 |
EP1258730A1 (en) | 2002-11-20 |
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