WO2005010181A1 - 核酸検出方法 - Google Patents
核酸検出方法 Download PDFInfo
- Publication number
- WO2005010181A1 WO2005010181A1 PCT/JP2004/010477 JP2004010477W WO2005010181A1 WO 2005010181 A1 WO2005010181 A1 WO 2005010181A1 JP 2004010477 W JP2004010477 W JP 2004010477W WO 2005010181 A1 WO2005010181 A1 WO 2005010181A1
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- WIPO (PCT)
- Prior art keywords
- nucleic acid
- target nucleic
- probe
- virus
- detection
- Prior art date
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- 150000007523 nucleic acids Chemical class 0.000 title claims abstract description 62
- 108020004707 nucleic acids Proteins 0.000 title claims abstract description 61
- 102000039446 nucleic acids Human genes 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000000523 sample Substances 0.000 claims abstract description 51
- 239000007787 solid Substances 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 40
- 108091093037 Peptide nucleic acid Proteins 0.000 claims description 29
- 241000700605 Viruses Species 0.000 claims description 18
- 241000315672 SARS coronavirus Species 0.000 claims description 15
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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
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6813—Hybridisation assays
- C12Q1/6834—Enzymatic or biochemical coupling of nucleic acids to a solid phase
- C12Q1/6837—Enzymatic or biochemical coupling of nucleic acids to a solid phase using probe arrays or probe chips
-
- 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
- G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
- G01N33/56983—Viruses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/005—Assays involving biological materials from specific organisms or of a specific nature from viruses
- G01N2333/01—DNA viruses
- G01N2333/02—Hepadnaviridae, e.g. hepatitis B virus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/005—Assays involving biological materials from specific organisms or of a specific nature from viruses
- G01N2333/08—RNA viruses
- G01N2333/11—Orthomyxoviridae, e.g. influenza virus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/005—Assays involving biological materials from specific organisms or of a specific nature from viruses
- G01N2333/08—RNA viruses
- G01N2333/15—Retroviridae, e.g. bovine leukaemia virus, feline leukaemia virus, feline leukaemia virus, human T-cell leukaemia-lymphoma virus
- G01N2333/155—Lentiviridae, e.g. visna-maedi virus, equine infectious virus, FIV, SIV
- G01N2333/16—HIV-1, HIV-2
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/005—Assays involving biological materials from specific organisms or of a specific nature from viruses
- G01N2333/08—RNA viruses
- G01N2333/165—Coronaviridae, e.g. avian infectious bronchitis virus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/005—Assays involving biological materials from specific organisms or of a specific nature from viruses
- G01N2333/08—RNA viruses
- G01N2333/18—Togaviridae; Flaviviridae
Definitions
- the present invention relates to a method for detecting a target nucleic acid.
- RNA is transcribed into cDNA using reverse transcriptase, and then PCR is performed. Therefore, to detect RNA viruses that have a serious effect on humans, such as SARS virus, influenza virus, HCV virus, etc., the RT-PCR method is used to amplify the cDNA and use the amplified cDNA. The method of detecting by using a probe has been used.
- the detection probe is DNA
- it is susceptible to DNA degrading enzymes and has drawbacks derived from the properties of DNA such as difficulty in controlling at room temperature.
- a method for overcoming this drawback a method using PNA that is resistant to a DNase has been proposed (Patent Documents 1 and 2).
- Non-patent document 1 It is also known that the sensitivity of RT-PCR in the detection of SARS coronavirus gene by RT-PCR is greatly affected by the enzyme manufacturer used, the material of the PCR tube, and the type of thermal cycler ( Non-patent document 1).
- Patent Document 1 Japanese Patent No. 2758988
- Patent Document 2 Japanese Patent Publication No. 11-512617
- Non-Patent Document 1 National Institute of Infectious Diseases, Virus Division 3, Room 1, Detection of SARS Coronavirus Gene by RT-PCR, [online], May 16, 2003, [July 14, 2003] ; ⁇ ", Internet 1 ⁇ net, http://idsc.mh.go.jp/otners/urgent/update56-b.html Disclosure of the Invention
- an object of the present invention is to provide a nucleic acid detection method and a detection kit having excellent detection sensitivity in a biological sample.
- the present inventors have conducted studies to solve the above-mentioned problems of the prior art, and as a result, surprisingly, the use of peptide nucleic acid has significantly improved detection compared to conventional virus detection methods. They have found that they have sensitivity, and have completed the present invention.
- This is a method for detecting a target nucleic acid comprising:
- the present invention is a method for detecting a target nucleic acid, wherein the first probe and the second probe are peptide nucleic acids.
- the present invention is a method for detecting a target nucleic acid, wherein the solid support is a methylbenzhydrylamine resin.
- the present invention is a method for detecting a target nucleic acid, wherein the shape of the solid support is spherical.
- the present invention is a method for detecting a target nucleic acid, wherein the number of first probes per solid-phase carrier is 1 to 100.
- the present invention is a method for detecting a target nucleic acid, wherein the fluorescent molecule is Qdot (registered trademark).
- the present invention is a method for detecting a target nucleic acid, which further comprises a step of amplifying the target nucleic acid before the step (a).
- the present invention is also a method for detecting a target nucleic acid in which the target nucleic acid is present in a biological sample.
- the present invention also provides a method for detecting a target nucleic acid, wherein the target nucleic acid is a virus. It is.
- the present invention is also a method for detecting a target nucleic acid, which is a viral force HBV, HCV, HIV, SARS virus or influenza virus.
- the present invention is a method for detecting a target nucleic acid, wherein the number of the second probes per target nucleic acid is 11 to 20.
- the present invention is also a nucleic acid detection kit including a first probe bound to a solid support and a second probe labeled with a fluorescent molecule.
- the virus detection method of the present invention has an effect of having a significantly higher detection sensitivity in a biological sample than a conventional virus detection method.
- the target nucleic acid is a virus, more preferably, an exogenous virus that has a serious effect on humans, such as HBV, HCV, HIV, SARS virus or influenza virus.
- Amplification of nucleic acids can be performed by any known method without particular limitation.
- PCR and LAMP methods Japanese Patent No. 3313358
- the ICAN method JP-A-2001-136965
- PCR polymerase chain reaction
- RT-PCR refers to a method in which the base sequence to be amplified is RNA.
- transfer the RNA to cDNA using reverse transcriptase and then perform PCR to amplify the base sequence to be amplified.
- Enzymes, buffers, and the like used for PCR and RT-PCR can be a commercially available RT-PCR kit, for example, ImProm-II Reverse Transcription System manufactured by Promega. The conditions for performing PCR and RT-PCR are determined according to the manufacturer's instructions.
- the reaction solution for PCR usually contains a buffer, salts such as MgCl and KC1, primers, deoxyribonucleotides, and a thermostable polymerase.
- salts such as MgCl and KC1
- primers primers
- deoxyribonucleotides primers
- deoxyribonucleotides primers
- deoxyribonucleotides primers
- deoxyribonucleotides primers
- a thermostable polymerase a thermostable polymerase
- proteins such as gelatin and albumin, Rusulfoxide surfactant may also be added.
- a probe refers to a nucleic acid having a base sequence identical or complementary to a part or all of the base sequence of a target nucleic acid, and refers to a probe capable of specifically binding to a target nucleic acid.
- the probe is a peptide nucleic acid.
- the first probe is a nucleic acid having a base sequence complementary to a part or all of the base sequence of the target nucleic acid, and is preferably complementary to the base sequence of the terminal portion of the target nucleic acid. Nucleic acid having a unique base sequence.
- the number of the first probes per solid phase carrier is preferably 1 to 100, more preferably 1 to 10, and most preferably 4 to 6.
- the second probe is a nucleic acid labeled with a fluorescent molecule and having a base sequence complementary to a part or all of the base sequence of the target nucleic acid. It is desirable that they do not overlap with the system 1J.
- the number of second probes per target nucleic acid is preferably 1-20, more preferably 1-10, and most preferably 3-5.
- any known fluorescent label can be used.
- fluorescein isothiocyanate, tetramethylrhodamine isothiocynate, or Qdot (registered trademark) is used. Yes, and more preferably Qdot®.
- any resin can be used, and is preferably a methylbenzhydrylamine resin, a latex resin or magnetic particles, and more preferably a methylbenzhydrylamine. Resin.
- the solid phase carrier can be in any shape, and is preferably spherical.
- the size (particle size) is preferably 20 nm-2000 zm, more preferably 2030 ⁇ m.
- PNA Peptide nucleic acid
- 2_aminoethyldaricin as a skeletal unit, which is a compound having a structure in which a nucleobase is bonded to the skeleton unit via a methylene carbonyl group (Japanese Patent No. 2758988).
- PNA has the following advantages over DNA and RNA:
- PNA exhibits a very high melting temperature (Tm) for DNA and RNA having complementary base sequences compared to conventional nucleic acids, and this melting point is based on non-complementary base force called mismatch. It has extremely excellent base specificity since it is greatly reduced just by introducing one.
- the synthesis of PNA is carried out using an amino acid (especially glycine) derivative (monomer unit) into which one of the four bases (A, T (U), C and G) constituting DNA or RNA is introduced.
- an amino acid (especially glycine) derivative monomer unit
- one of the four bases (A, T (U), C and G) constituting DNA or RNA is introduced.
- the binding can be carried out sequentially by using a conventional solid phase peptide synthesis method.
- the peptide can be synthesized by a conventional Fmoc method or tBoc method using a peptide synthesizer.
- a PNA into which a functional molecule such as a fluorescent dye has been introduced can be produced, for example, according to the method described in Japanese Patent Application No. 2002-121667.
- the target nucleotide sequence of the probe is, for example, a relatively stable nucleotide sequence in a virus aimed at early diagnosis. From the sequence, it has a length of about 15 base pairs in consideration of conditions such as Tm, GC content, number of repetitions of the same base, design area, no, salt concentration at the time of hybridization, etc. Select one or more base sequences as the target sequence Can.
- the sequence of the probe is preferably designed so that the forces that are complementary to the target sequence do not overlap each other.
- any sample that fluctuates in a living body such as animal and plant tissues, body fluids, and excrement can be used.
- SARS virus was selected as the virus to be detected.
- the genome of the SARS virus is composed of single-stranded and + strand RNA.
- GenBank on April 17, 2003, under accession number AY278741.
- the probe was selected from the base sequence 15271 15400, which is a relatively stable region in the whole genome sequence of the SARS virus.
- pSARlsl (15, Piotin), a PNA for SARS detection (Structural formula: Piotin-CONH—
- pSA Rls2 (15, FITC)
- pSARls3 (15, FITC) (final concentration lOnM) were added, and the mixture was stirred for 10 minutes and washed similarly.
- a target group a group of only latex particle suspension was provided.
- a color reaction was carried out at room temperature for 30 minutes while adding 100 ⁇ of calories. After washing each gel with PBS-II, add 2 ⁇ SO per 50 ⁇ L of sulfuric acid per well to stop the reaction, and stop the reaction with a spectrophotometer.
- the absorbance at 50 nm was measured.
- the mixture was added to the mixture and the reaction was stopped, and the absorbance at a wavelength of 490 nm was measured with a spectrophotometer.
- Example 10 the DNA fragment SARlas derived from the SARS virus and pSARls2 (15, biotin), which is a PNA for SARS detection, were gradually hybridized on the reaction plate.
- the virus-derived DNA fragment SARlas and SARS detection pSARls2 (15, biotin) were simultaneously hybridized, the same high-sensitivity detection ability as in Example 10 was obtained.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Virology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Medicinal Chemistry (AREA)
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JP2005512028A JPWO2005010181A1 (ja) | 2003-07-25 | 2004-07-23 | 核酸検出方法 |
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JP2003279573 | 2003-07-25 | ||
JP2003-279573 | 2003-07-25 |
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WO2005010181A1 true WO2005010181A1 (ja) | 2005-02-03 |
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PCT/JP2004/010477 WO2005010181A1 (ja) | 2003-07-25 | 2004-07-23 | 核酸検出方法 |
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WO (1) | WO2005010181A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20220144608A (ko) * | 2021-04-20 | 2022-10-27 | 재단법인 아산사회복지재단 | 마이크로입자 기반 핵산 검출용 키트 및 핵산 증폭산물 검출 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06506945A (ja) * | 1991-05-24 | 1994-08-04 | ブシャート,オレ | ペプチド核酸 |
WO2001068673A1 (en) * | 2000-03-14 | 2001-09-20 | Active Motif | Oligonucleotide analogues, methods of synthesis and methods of use |
JP2003171396A (ja) * | 2001-09-19 | 2003-06-20 | Hisafumi Ikeda | 新規な機能性ペプチド核酸およびその製法 |
-
2004
- 2004-07-23 JP JP2005512028A patent/JPWO2005010181A1/ja not_active Withdrawn
- 2004-07-23 WO PCT/JP2004/010477 patent/WO2005010181A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06506945A (ja) * | 1991-05-24 | 1994-08-04 | ブシャート,オレ | ペプチド核酸 |
WO2001068673A1 (en) * | 2000-03-14 | 2001-09-20 | Active Motif | Oligonucleotide analogues, methods of synthesis and methods of use |
JP2003171396A (ja) * | 2001-09-19 | 2003-06-20 | Hisafumi Ikeda | 新規な機能性ペプチド核酸およびその製法 |
Non-Patent Citations (2)
Title |
---|
ROTA, P A ET AL.: "Characterization of a novel coronavirus associated with severe acute respiratorysyndrome", SCIENCE, vol. 300, 30 May 2003 (2003-05-30), pages 1394 - 1399, XP002269482 * |
SEYDEL, C.: "News Quantum Dot Get Wet", SCIENCE, vol. 300, 4 April 2003 (2003-04-04), pages 80 - 81, XP002903418 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20220144608A (ko) * | 2021-04-20 | 2022-10-27 | 재단법인 아산사회복지재단 | 마이크로입자 기반 핵산 검출용 키트 및 핵산 증폭산물 검출 방법 |
WO2022225220A1 (ko) * | 2021-04-20 | 2022-10-27 | 재단법인 아산사회복지재단 | 마이크로입자 기반 핵산 검출용 키트 및 핵산 증폭산물 검출 방법 |
KR102625074B1 (ko) | 2021-04-20 | 2024-01-16 | 재단법인 아산사회복지재단 | 마이크로입자 기반 핵산 검출용 키트 및 핵산 증폭산물 검출 방법 |
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JPWO2005010181A1 (ja) | 2007-09-27 |
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