WO2016068663A1 - 표적 유전자 검출용 미세 유동 장치, 이의 제조방법 및 이를 이용한 검출 방법 - Google Patents
표적 유전자 검출용 미세 유동 장치, 이의 제조방법 및 이를 이용한 검출 방법 Download PDFInfo
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- WO2016068663A1 WO2016068663A1 PCT/KR2015/011605 KR2015011605W WO2016068663A1 WO 2016068663 A1 WO2016068663 A1 WO 2016068663A1 KR 2015011605 W KR2015011605 W KR 2015011605W WO 2016068663 A1 WO2016068663 A1 WO 2016068663A1
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- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
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- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
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- C12M1/00—Apparatus for enzymology or microbiology
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- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
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- 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
- C12Q1/6844—Nucleic acid amplification reactions
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- B01L2300/00—Additional constructional details
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- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0816—Cards, e.g. flat sample carriers usually with flow in two horizontal directions
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- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
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- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
- B01L2300/0864—Configuration of multiple channels and/or chambers in a single devices comprising only one inlet and multiple receiving wells, e.g. for separation, splitting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Definitions
- the present invention provides a microfluidic device for detecting a target gene, which can be visually identified by amplifying a target gene and selectively blocking a flow path of the microfluidic device, a manufacturing method thereof, and a method for detecting a target gene using the same. It is about.
- the microfluidic device for detecting a target gene is a device including a substrate, an inlet, a discharge port connected to a first flow path and a second flow path.
- the second flow path of the device is coated, a primer is immobilized on the coating, and a template (a template for target gene detection) is bound to the immobilized primer.
- the linear structure of the template may be defined as' a first target gene binding site'- '(for forming a dumbbell shape) a complementary binding site'-'primer binding part'-' (for forming a dumbbell shape) Complementary binding site '-' second target gene binding site 'structure in the 2 template.
- the second flow path may be coated to have a functional group capable of binding with the primer.
- the primer may also be modified to have a functional group capable of binding to a functional group on the second flow path.
- One end of the primer can be modified to have various functional groups, for example thiol, amine, hydroxyl, carboxyl, isothiocyanate, NHS Esters, aldehydes, epoxides, carbonates, HOBt esters, glutaraldehyde, carbamate, imidazole carbamate, maleimide, aziri From the group consisting of aziridine, sulfone, vinylsulfone, hydrazine, phenyl azide, benzophenone, anthraquinone, and diene groups
- the terminal may be modified by more than one selected.
- the template is formed by separating the complementary to the pathogen gene (complementary to pathogen) at both ends of the template, the complementary binding site in the template to form a dumbbell form (complementary region to make dumbbel shape) is formed adjacent to the binding site complementary to the pathogen gene of the both ends, and the binding site (primer binding region) complementary to the primer (primer binding region) forms the dumbbell shape It is formed between complementary binding sites in the template (see A in FIG. 2).
- the detection composition may be a high salt solution to increase the agglomeration of the amplified gene product to help the human eye by causing a change in turbidity or precipitation.
- the high salt solution is an inorganic salt solution, for example, magnesium chloride (MgCl 2 ) aqueous solution, ammonium chloride (NH 4 Cl) aqueous solution, ammonium acetate aqueous solution (NH 4 OA C ), sodium chloride (NaCl) aqueous solution, ammonium sulfate ((NH 4 ) 2 SO 4 ) It may be an aqueous solution containing an aqueous solution, or a neutral amino acid solution, but is not limited thereto.
- the microfluidic device of the present invention may be able to visually identify the amplified gene product of the target gene.
- the detection may be visually identified from the point that the amplified gene products are entangled with each other to form a hydrogel or change in turbidity.
- the method may further comprise the step of injecting (S5) dyeing reagent, high salt solution, or fluorescent reagent.
- the detection composition may be a gel red (staining reagent) or streptavidin beads (Streptavidin bead) strongly binding to biotin.
- the detection composition may be a high salt solution such as MgCl 2 , NH 4 Cl.
- FIG. 1 is a plan view (left) and a perspective view (right) of the microfluidic device for detecting a target gene of the present invention.
- FIG. 3 is a view showing a method of manufacturing a microfluidic device for detecting a target gene of the present invention and a method of detecting a target gene using the same.
- A, B, C, D, E, and F each mean each step of the method.
- the microfluidic device for detecting a target gene of the present invention comprises a substrate 100; An inlet 101 through which the sample solution formed on the substrate is introduced from the outside; A first flow path 102 connected to the inlet to receive the sample solution introduced therein; A second flow path 103 connected to the first flow path; An outlet 104 connected to the second flow path.
- the second flow passage 103 may be branched into two or more (for example, three) connected to the first flow passage.
- the microfluidic device for detecting a target gene of the present invention comprises a primer fixed on the second flow path; And a template complementarily bound to the primer. Referring to FIG.
- a microfluidic device for detecting a target gene (a microfluidic device ⁇ 1 III 3in1 uncoated Microscopy Chamber (ibidi) for preparing a pathogen gene detection device) ⁇ was prepared.
- the second flow path 103 is connected to the first flow path may be divided into two or more (for example, three).
- Step 3 immobilizing (combining) primers capable of binding to the template on the coated second flow path
- Primer-5SS-polyA9 (BIONEER) (SEQ ID NO: 9) was used as a primer.
- Example 2-2 Method for producing microfluidic device for detecting two or more target genes ⁇ Method for producing microfluidic device for detecting two or more pathogens (Bacillus anthracis and Ebola virus) genes ⁇
- a template is applied to the second flow path 103 through each outlet 104 so that the primers and the respective templates fixed on the branched second flow path 103 can be fixed to each other. It was. Negative Control was used without the addition of a template. Specifically, a template (Template_E) for Ebola virus is added to the second flow path (the middle branch of the second flow path of FIG. 1) of the second flow path having three branches, and the third flow path (the left side of the second flow path of FIG. 1) is added. Branch) was added a template (Template_B_A) for Bacillus anthracis, the first flow path was used as a negative control.
- Example 3-1 Method for detecting target gene using microfluidic device for single target gene detection ⁇ Method for detecting single target pathogen (Bacillus anthracis) gene using microfluidic device for single target gene detection ⁇
- Gel red As the detection composition, 50 ⁇ l of Gel red (GelRed TM / Biotium) 1: 1000 dilution (diluted with DDW (Water Purification System / LABOGENE)) was added through the inlet. Gel red (GelRed TM / Biotium) 1: 200 dilution flowed through the first flow passage into the second flow passage.
- the dilution factor of Gel red (GelRed TM / Biotium) is usually diluted to 1: 10000, but is controlled to see the color visually.
- red lines in the second passage were a DNA membrane, and it was found that the amplified target gene product could be detected using a dyeing reagent such as gel red as a detection composition.
- the imager (Gel Doc TM EZ (Bio-rad)) showed that the flow was blocked in the second flow path in the microfluidic device for detecting a single target gene.
- This allows the use of a single flow gene detection device for detecting single target genes of the present invention without the use of a device such as a thermo cycler and without special temperature changes. For example, it was confirmed that the detection of a single pathogen (Bacillus anthracis) gene is possible with the naked eye.
- samples ⁇ Pathogen_BA SEQ ID NO: 12
- Pathogen_E SEQ ID NO: 13
- Sample solutions were prepared with Pathogen_B_A 100 in 1 ⁇ PBS.
- a sample solution was prepared with Pathogen_E 100 in 1X PBS.
- the target gene (gene of the pathogen) present in the sample can be complementarily combined with a specific template to form an annular template (see FIG. 3C).
- the hybridization step is performed in the same manner except that Template_E (SEQ ID NO: 11) is used instead of Template_BA (SEQ ID NO: 10) and Template_E_Not Phosp (SEQ ID NO: 15) is used instead of Pathogen_BA_Not Phosp (SEQ ID NO: 14). It was.
- the second channel on the right side binds the template for the MERS virus to the primer fixed on the second channel, and adds the target MERS gene which binds to the template, so that rotational amplification always occurs. It was made.
- the second flow path on the left side was used as a positive control (PC).
- FIG. 13 a schematic diagram of a process occurring in the microfluidic device having three second flow paths of a negative control group, a sample group, and a positive control group is shown in FIG. 13.
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Description
병원균 종류 | 서열번호 | 템플레이트 서열 (5′ → 3′) | 서열번호 | 병원균의 표적 유전자 서열 |
살모넬라 | 1 | 5’-포스페이트 - TG CTA TGC CGA CTC AAT CGA AGT ACT CAG CGT AAG TTT AGA GGC AT TA GCA TGC TAG TAT CGA CGT CCC ACG TAC CAA CAA CTT ACG CTG AGT ACT TCG ATT TG AGT G-3’ | 5 | 5’-GAG TCG GCA TAG CAC ACT CA- 포스페이트-3’ |
에르시니아 엔테로콜리티카 | 2 | 5’-포스페이트 - GC TCA CCC CAG TAA AAT CGA AGT ACT CAG CGT AAG TTT AGA GGC AT TA GCA TGC TAG TAT CGA CGT CCC ACG TAC CAA CAA CTT ACG CTG AGT ACT TCG ATT AG CTT TAC-3’ | 6 | 5’-TTA CTG GGG TGA GCG TAA AGC T- 포스페이트-3’ |
야토병균 | 3 | 5’-포스페이트 - TG TTT CCA GTA TTT AAT CGA AGT ACT CAG CGT AAG TTT AGA GGC AT T A GCA TGC TAG TAT CGA CGT CCC ACG TAC CAA CAA CTT ACG CTG AGT ACT TCG ATT TTT CCT CCG A- 3’ | 7 | 5’-AAA TAC TGG AAA CAT CGG AGG AAA- 포스페이트-3’ |
페스트균 | 4 | 5’-포스페이트 - TC GAA TGC CAA CAA AAT CGA AGT ACT CAG CGT AAG TTT AGA GGC AT TA GCA TGC TAG TAT CGA CGT CCC ACG TAC CAA CAA CTT ACG CTG AGT ACT TCG ATT CTC TGA ACA- 3’ | 8 | 5’-TTG TTG GCA TTC GAT GTT CAG AG-포스페이트-3’ |
병원균 종류 | 서열번호 | 템플레이트 서열 (5′ → 3′) | 서열번호 | 병원균의 표적 유전자 서열 |
탄저균 | 10 | 5’-포스페이트 TTT GAA ATG GAG AAA ATC GAA GTA CTC AGC GTA AGT TTA GAG GTA GCA TGC TAG TAT CGA CGT ACG TAC CAA CTT ACG CTG AGT ACT TCG ATT TGA GCG-3’ | 12 | 5’-TTC TCC ATT TCA AAC GCT CA 포스페이트-3’ |
에볼라 바이러스 | 11 | 5’-포스페이트 GA CGC ACG CG A ATC GAA GTA CTC AGC GTA AGT TTA GAG GTA GCA TGC TAG TAT CGA CGT ACG TAC CAA CTT ACG CTG A GT ACT TCG ATT AAC GAG AAA TCG CAC- 3’ | 13 | 5’-CGC GTG CGT CGT GCG ATT TCT CGT T-포스페이트-3’ |
병원균 종류 | 서열번호 | 템플레이트 서열 (5′ → 3′) | 서열번호 | 병원균의 표적 유전자 서열 |
메르스 코로나바이러스(MERS-CoV) | 16 | 5’-5포스페이트/ AGG GCA CAT CTC CGA ATC GAA GTA CTC AGC GTA AGT TTA GAG GTA GCA TGC TAG TAT CGA CGT ACG TAC CAA CTT ACG CTG AGT ACT TCG ATT ATA CCC 3’ | 17 | 5’-CG GAG AUG UGC CCU GGG UAU/3포스페이트-3’ |
Claims (17)
- 기판;상기 기판 상에 형성된 시료용액이 외부로부터 유입되는 유입구;상기 시료 유입구와 연결되어 유입된 시료용액을 수용하는 제 1 유로;상기 제 1 유로와 연결된 제 2 유로;상기 제 2 유로와 연결된 배출구;상기 제 2 유로 상의 코팅,상기 제 2 유로의 코팅 상에 고정된 프라이머; 및상기 프라이머에 상보적으로 결합된 템플레이트를 포함하고,상기 템플레이트는 표적 유전자와 상보적으로 결합하는 결합 부위, 상기 프라이머에 상보적으로 결합하는 결합 부위, 덤벨 형태를 형성하기 위한 템플레이트 내 상보적인 결합 부위를 포함하고,상기 표적 유전자와 상보적으로 결합하는 결합부위는 템플레이트의 양 말단에 분리되어 형성되고, 상기 프라이머에 상보적으로 결합하는 결합 부위는 분리되어 형성된 상기 덤벨 형태를 형성하기 위한 템플레이트 내 상보적인 결합 부위 사이에 형성된 표적 유전자 검출용 미세 유동 장치.
- 제1항에 있어서, 상기 제 2 유로는 1 내지 20개인 표적 소분자 검출용 미세 유동 장치.
- 제1항에 있어서, 상기 제 2 유로는 2 내지 20개이며, 제 1 유로의 말단에서 각각의 제 2 유로가 분지되고,각각의 제 2 유로 상에 고정된 프라이머에 결합된 표적 유전자 검출용 템플레이트는 서로 같거나 다른 유전자에 결합하는, 표적 유전자 검출용 미세 유동 장치.
- 제1항에 있어서, 상기 제2 유로는 5-히드록시도파민 염산, 노르에피네프린, 에피네프린, 파이로갈롤아민, DOPA(3,4-Dihydroxyphenylalanine), 카테킨, 탄닌류, 파이로갈롤, 파이로카테콜, 헤파린-카테콜, 키토산-카테콜, 폴리에틸렌글리콜-카테콜, 폴리에틸렌이민-카테콜, 폴리메틸메타크릴레이트-카테콜, 히알루론산-카테콜, 폴리라이신-카테콜 (polylysine-catechol), 및 폴리라이신 (polylysine)으로 이루어진 군으로부터 선택된 1 이상으로 코팅된 표적 유전자 검출용 미세 유동 장치.
- 제1항에 있어서, 상기 프라이머는 티올(thiol), 아민(amine), 하이드록실(hydroxyl), 카복실(carboxyl), 이소티오시아네이트(isothiocyanate), NHS 에스테르, 알데히드(aldehyde), 에폭시드(epoxide), 카보네이트(Carbonate), HOBt 에스테르, 글루타르알데히드(Glutaraldehyde), 카바메이트(carbamate), 이미다졸 카바메이트(imidazole carbamate), 말레이미드(maleimide), 아지리딘(aziridine), 설폰(sulfone), 비닐설폰(vinylsulfone), 하이드라진(hydrazine), 페닐 아자이드(phenyl azide), 벤조페논(benzophenone), 안트라퀴논(anthraquinone), 및 디엔(Diene) 기로 이루어진 군으로부터 선택된 1 이상으로 말단이 변형된 것인, 표적 유전자 검출용 미세 유동 장치.
- 제1항에 있어서, 상기 코팅은 5-하이드록시도파민 염산이고, 상기 프라이머는 말단이 티올 또는 아민 기로 변형된 것인, 표적 유전자 검출용 미세 유동 장치.
- 제1항에 있어서, 상기 표적 유전자는 조류독감, 사스(SARS), 용혈성 요독 증후군(hemolytic uremic syndrome) 및 혈변(bloddy diarrhea)(Escherichia coli O157:H7), 결핵(Mycobacterium tuberculosis), 탄저병(Bacillus anthracis), 폐렴(Streptococcus pneumonia), 말라리아(Plasmodium), 살모넬라(Salmonella), 간염(Hepatitis A, B, C, D 또는 E virus), 야토병균(Francisella tularensis), 페스트균(Yersinia pestis), 에르시니아 엔테로콜리티카(Yersinia enterocolitica) 및 출혈열(Ebola virus), 및 메르스 코로나 바이러스(MERS-Cov virus)로 이루어진 군으로부터 선택된 1 이상으로부터 유래된 표적 유전자인, 표적 유전자 검출용 미세 유동 장치.
- 제1항에 있어서, 상기 템플레이트는 서열번호 1 내지 4, 서열번호 10, 서열번호 11 및 서열번호 16으로 이루어진 군으로부터 선택된, 표적 유전자 검출용 미세 유동 장치.
- 제1항의 표적 유전자 검출용 미세 유동 장치;dNTP;리가아제;및 등온 핵산 중합효소를 포함하는, 표적 유전자 검출용 미세 유동 장치 키트.
- 제9항에 있어서, 상기 리가아제는 DNA 리가아제이고, 상기 등온 핵산 중합효소는 phi 29 폴리머라제인, 표적 유전자 검출용 미세 유동 장치 키트.
- 제9항에 있어서, 염색 시약, 고염 용액(high salt solution), 또는 형광 시약을 더 포함하는, 표적 유전자 검출용 미세 유동 장치 키트.
- 제9항에 있어서, 제1항의 표적 유전자 검출용 미세 유동 장치의 상기 템플레이트는 서열번호 1 내지 4, 서열번호 10, 서열번호 11 및 서열번호 16으로 이루어진 군으로부터 선택된, 표적 유전자 검출용 미세 유동 장치 키트.
- 다음 단계를 포함하는 표적 유전자 검출용 미세 유동 장치를 제조하는 방법:(S1) 기판, 상기 기판 상에 형성된 외부로부터 유입되는 유입구, 상기 유입구와 연결되어 유입된 시료용액을 수용하는 제 1 유로, 상기 제 1 유로와 연결된 제 2 유로, 상기 제 2 유로와 연결된 배출구를 포함하는 미세 유동 장치를 제공하는 단계;(S2) 상기 미세 유동 장치의 제2 유로를 코팅하는 단계;(S3) 상기 코팅된 제 2 유로 상에 템플레이트와 결합할 수 있는 프라이머를 고정화하는 단계; 및(S4) 표적 유전자와 상보적으로 결합하는 결합 부위, 상기 프라이머에 상보적으로 결합하는 결합 부위, 덤벨 형태를 형성하기 위한 템플레이트 내 상보적인 결합 부위를 포함하는 템플레이트를, 상기 프라이머에 결합시키는 단계,여기서, 상기 표적 유전자와 상보적으로 결합하는 결합부위는 템플레이트의 양 말단에 분리되어 형성되고, 상기 프라이머에 상보적으로 결합하는 결합 부위는 분리되어 형성된 상기 덤벨 형태를 형성하기 위한 템플레이트 내 상보적인 결합 부위 사이에 형성된다.
- 다음 단계를 포함하는 제1항의 표적 유전자 검출용 미세 유동 장치를 이용하여 표적 유전자를 검출하는 방법:(S1) 제1항의 표적 유전자 검출용 미세 유동 장치를 제공하는 단계;(S2) 제 1 유로에 시료용액을 유입시키는 단계; 및(S3) 상기 표적 유전자 검출용 미세 유동 장치의 제 2 유로에 dNTP, 리가아제, 및 등온 핵산 중합효소를 첨가하는 단계.
- 제14항에 있어서,(S4) 증폭된 유전자 산물이 엉기어 직경 50 μm 내지 5 mm의 크기를 가지는 하이드로겔이 제 2 유로 및 배출구에 형성되는 단계를 포함하는, 표적 유전자를 검출하는 방법.
- 제15항에 있어서,(S5) 염색 시약, 고염 용액(high salt solution), 또는 형광 시약을 주입하는 단계를 더 포함하는, 표적 유전자를 검출하는 방법.
- 제14항에 있어서, 제1항의 표적 유전자 검출용 미세 유동 장치의 상기 템플레이트는 서열번호 1 내지 4, 서열번호 10, 서열번호 11 및 서열번호 16으로 이루어진 군으로부터 선택된, 표적 유전자를 검출하는 방법.
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CN106483276A (zh) * | 2016-09-29 | 2017-03-08 | 大连理工大学 | 一种基于智能手机的光流控血液细胞显微成像系统 |
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CN113322354B (zh) * | 2021-07-19 | 2022-03-22 | 国科宁波生命与健康产业研究院 | 一种检测2019-nCoV的CDA引物组、试剂盒及其应用 |
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Publication number | Publication date |
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EP3214164A1 (en) | 2017-09-06 |
CN107002006A (zh) | 2017-08-01 |
CN107002006B (zh) | 2020-03-31 |
KR101764585B1 (ko) | 2017-08-10 |
EP3214164B1 (en) | 2020-09-16 |
JP2018500927A (ja) | 2018-01-18 |
BR112017008931B1 (pt) | 2022-02-01 |
US20170314070A1 (en) | 2017-11-02 |
BR112017008931A2 (ko) | 2018-11-27 |
AU2015340134A1 (en) | 2017-05-11 |
EP3214164A4 (en) | 2018-04-18 |
US10731208B2 (en) | 2020-08-04 |
AU2015340134B2 (en) | 2018-12-20 |
JP6643347B2 (ja) | 2020-02-12 |
KR20160052400A (ko) | 2016-05-12 |
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