WO2021071164A1 - 생물학적 시료의 간 조직 유래 여부를 판별하는 방법 - Google Patents
생물학적 시료의 간 조직 유래 여부를 판별하는 방법 Download PDFInfo
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- WO2021071164A1 WO2021071164A1 PCT/KR2020/013290 KR2020013290W WO2021071164A1 WO 2021071164 A1 WO2021071164 A1 WO 2021071164A1 KR 2020013290 W KR2020013290 W KR 2020013290W WO 2021071164 A1 WO2021071164 A1 WO 2021071164A1
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- 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
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6881—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for tissue or cell typing, e.g. human leukocyte antigen [HLA] probes
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- 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
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/154—Methylation markers
Definitions
- the present invention relates to a method for determining whether a biological sample of unknown origin is derived from liver tissue, and a composition comprising a liver tissue-specific DNA methylation marker for performing the same.
- the cells in the human body have the same genetic information, but the functions and shapes of each cell are very diverse. This is because a specific gene is expressed for each cell, and accordingly, the cell differentiation process is different, resulting in a difference in cell phenotype.
- Several factors, such as DNA methylation, histone modification, and tissue-specific transcription factors, are involved in the expression of these specific genes.
- DNA methylation, specifically methylation of the CpG site is an essential element of cell-specific gene expression and is known to have unique DNA methylation characteristics for each cell or tissue. Therefore, the DNA methylation characteristic can be used to easily identify the origin of the cell or tissue.
- circulating cell free DNA may be present in blood circulating in a living body
- circulating tumor DNA ctDNA
- cfDNA circulating cell free DNA
- ctDNA circulating tumor DNA
- a process of additionally confirming the tissue from which the ctDNA originated is required, and in this process, the diagnosis of cancer is delayed.
- early diagnosis of cancer becomes possible if the originating tissue can be identified while detecting the corresponding ctDNA, and a method of revealing the origin of a biological sample is increasingly required for early diagnosis of not only cancer but also other diseases.
- the present inventors completed the present invention by identifying a marker having a high methylation level specifically for liver tissue.
- an aspect of the present invention provides a method of determining whether a biological sample is of liver tissue origin, comprising the following steps:
- the subject may be a human, and the biological sample includes tissues, tissue fragments, cells, cell fragments, blood, plasma, body fluids, feces, urine, etc. isolated from the subject. It is not limited. The tissues, tissue fragments, cells and cell fragments, etc. may be separated from blood, plasma, body fluid, urine, and the like collected from the subject.
- the DNA may be DNA isolated from tissues, cells, etc., cell free DNA (cfDNA) floating in blood, plasma, body fluid, etc., or circulating tumor DNA (ctDNA) flowing from tumor cells.
- cfDNA cell free DNA
- ctDNA circulating tumor DNA
- methylation refers to the attachment of a methyl group (-CH 3 ) to a base constituting DNA, and preferably refers to methylation occurring in the cytosine of a specific CpG site of a specific DNA.
- methylation level means a quantitative evaluation of the methylation status of a CpG site present in a specific DNA sequence, and the methylation status is the presence or absence of 5-methyl-cytosine at one or more CpG sites in the DNA sequence. Means.
- CpG site refers to a sequence in which cytosine (C) and guanine (G) are linked by a phosphate group, and a promoter region, a protein coding region (open reading frame, ORF), and It may exist in a DNA sequence including a terminator region or the like. Methylation of the CpG site is known to be involved in maintaining genome stability and regulating gene expression.
- the methylation level is high in normal liver tissue and liver cancer tissue samples, and the methylation level is low in other tissues including blood cg12137206 (SEQ ID NO: 1), cg03792768 (SEQ ID NO: 2) Markers were discovered.
- the target methylation site of the two markers is a CpG site located at the 61st nucleotide in the sequence represented by SEQ ID NO: 1 and SEQ ID NO: 2, respectively.
- the methylation level of all CpG sites present in the sequences represented by SEQ ID NOs: 1 and 2, including the target CpG site can be measured.
- (b) is PCR, methylation specific PCR, real time methylation specific PCR, MethyLight PCR, MehtyLight digital PCR, EpiTYPER, methylation specific DNA PCR using binding protein, quantitative PCR, DNA chip, molecular beacon, MS-HRM (Methylation-sensitive high resolution melting), asymmetric PCR, asymmetric PCR MS-HRMA (asymmetric PCR methylation-sensitive high) resolution melting analysis), Recombinase Polymerase Amplification, LAMP method (Loop-Mediated Isothermal Amplification), Eclipse probe, next-generation sequencing panel (NGS panel), pyrosequencing and bisulfite sequencing. It can be carried out in a method selected from the group consisting of.
- the methylation level may be identified by a microarray, and the microarray may use a probe immobilized on a solid surface.
- the probe may include a sequence complementary to a sequence of 10 to 100 consecutive nucleotides including the CpG site.
- the method may further include (c) after step (b), comparing the methylation level with the methylation level of a normal control group. For example, by comparing the methylation level of a biological sample with the methylation level of a normal control, if the methylation level is high, it can be determined that the biological sample is derived from liver tissue, and if the methylation level is low or similar, the biological sample is It can be determined that it originated from other organizations except for it.
- Another aspect of the present invention provides a method for detecting DNA derived from liver tissue in a biological sample comprising the following steps:
- the liver tissue-derived DNA detection method may be used in combination with an existing liver cancer diagnosis method.
- compositions for determining the origin of liver tissue of a biological sample comprising an agent capable of measuring the methylation level of the sequence represented by SEQ ID NO: 1 and SEQ ID NO: 2.
- the CpG site may be one or more including a CpG site located at nucleotide 61 in the sequence represented by SEQ ID NO: 1 and SEQ ID NO: 2.
- the agent capable of measuring the methylation level may be a primer, a probe or an antisense nucleic acid that binds to the CpG site of the sequence represented by SEQ ID NO: 1 and SEQ ID NO: 2, and the primer, probe Alternatively, the antisense nucleic acid may be used as a hybridizable array element and immobilized on a substrate.
- sequence represented by SEQ ID NO: 1 or 2 may be genomic DNA, or a sequence in which unmethylated cytosine is converted to uracil by treatment with sulfonic acid.
- the gas is a suitable rigid or semi-rigid support, and may include, for example, membranes, filters, chips, slides, wafers, fibers, magnetic or non-magnetic beads, gels, tubing, plates, polymers, microparticles and capillaries. have.
- the hybridization array element may be immobilized on a gas phase through a chemical bonding method, a covalent bonding method such as UV, or a linker (eg, ethylene glycol oligomer and diamine).
- DNA isolated from a biological sample may be applied to a hybridization array to hybridize with an array element, and hybridization conditions may be variously changed, and detection and analysis of the degree of hybridization It can be implemented in various ways according to techniques known in the art.
- the sample DNA and/or primer, probe, or antisense nucleic acid may be labeled to provide a signal for confirming hybridization, and may be linked to an oligonucleotide.
- the label is a fluorophore (e.g., fluorescein, phycoerythrin, rhodamine, lissamine, Cy3 and Cy5 (Pharmacia), chromophore, chemiluminescent group, magnetic particle, radioisotope ( P32 and S35), enzymes (alkaline phosphatase or horseradish peroxidase), cofactors, substrates for enzymes, heavy metals (e.g. gold), antibodies, streptavidin, biotin, digoxigenin And a hapten having a specific binding partner such as a chelating group, but is not limited thereto.
- fluorophore e.g., fluorescein, phycoerythrin, rhodamine, lissamine, Cy3 and Cy5 (Pharmacia)
- chromophore e.g., chromophore, chemiluminescent group, magnetic particle, radioisotope
- the hybridization of the primer, probe or antisense nucleic acid and the sample DNA is various factors such as reaction temperature, hybridization and washing time, buffer components and their pH and ionic strength, length of nucleotide, nucleotide sequence, amount of GC sequence, etc.
- reaction temperature hybridization and washing time
- buffer components buffer components and their pH and ionic strength
- length of nucleotide nucleotide sequence
- amount of GC sequence etc.
- Depends on Detailed conditions for the hybridization are Joseph Sambrook, et al., Molecular Cloning, A Laboratory Manual, Cold Spring Harbor Laboratory Press, Cold Spring Harbor, N.Y. (2001); And M.L.M. Anderson, Nucleic Acid Hybridization, Springer-Verlag New York Inc. See N.Y. (1999).
- a hybridization signal generated through the hybridization reaction may be detected.
- the probe is labeled with an enzyme, it is possible to confirm whether or not hybridization has occurred by reacting a substrate of the enzyme with a result of a hybridization reaction.
- the enzymes and substrates are peroxidase (e.g. horseradish peroxidase), chloronaphthol, aminoethylcarbazole, diaminobenzidine, D-luciferin, lucigenin (bis-N-methylacridinium nitrate), resorupine Benzyl ether, luminol, Amplex Red reagent (10-acetyl-3,7-dihydroxyphenoxazine), HYR (p-phenylenediamine-HCl and pyrocatechol), TMB (tetramethylbenzidine), ABTS (2,2'-Azine- di[3-ethylbenzthiazoline sulfonate]), o-phenylenediamine (OPD) and naphthol/pyronine; Alkaline phosphatase and bromochloroindolyl phosphate (BCIP), nitro blue tetrazolium (NBT), naphthol-AS-B
- liver-specific methylation marker can be used as a major marker that can confirm the origin of the tissue, and will be used as an index that can improve the accuracy of monitoring and early detection of liver-related diseases in the future.
- the method for determining whether a biological sample of the present invention is derived from liver tissue and a composition for performing the same use a liver tissue-specific DNA methylation marker, and the liver tissue-specific marker has a low methylation level in tissues other than the liver tissue. , Since the methylation level is high in normal liver tissue and liver cancer tissue, whether or not a biological sample is derived from liver tissue can be determined with excellent accuracy.
- FIG. 1 schematically shows the process of discovering a liver tissue-specific marker according to the present invention.
- A is a result of confirming the methylation levels of the finally selected cg12137206 and cg03792768 markers in normal liver tissue (Liver N) and liver cancer tissue (Liver T)
- B is a normal liver tissue (LIHC_N) and liver cancer tissue (LIHC_T) of a liver cancer sample.
- FIG. 5 shows the results of confirming the methylation level of the cg12137206 marker in various normal tissues (A) and cancer tissues (B).
- FIG. 6 shows the results of confirming the methylation level of the cg03792768 marker in various normal tissues (A) and cancer tissues (B).
- Figure 7 shows the results of confirming the methylation levels of cg12137206 and cg03792768 markers in major normal and cancer tissues: bladder (BL), breast (breast, BR), cervix (CE), colon, CO ), esophagus (ES), glioblastoma (GB), head and neck (HN), kidney (KI), liver (LI), lung (Lung, LU), and pancreas (pancreas, PA), paraganglioma (PC), prostate (PR), rectum (rectum, RE), sarcoma (SA), skin (skin, SK), stomach (stomach, ST), thymus (thymus, TH), uterine (UC) and blood (B).
- Example 1 Identification of liver tissue-specific methylation markers
- TCGA Cancer Genome Atlas
- an unmethylated CpG site in 90% of the pan-tumor excluding liver cancer, and an unmethylated CpG site in 90% of the pan-normal tissue excluding liver were additionally added. Were selected.
- FIG. 1 schematically shows a process of discovering a liver tissue-specific marker according to the present invention.
- FIG. 2 A variable importance plot (Varimp Plot) of the liver tissue-specific marker discovered in Example 1 was prepared by the random forest method, and it is shown in FIG. 2.
- the X-axis MeanDecreaseAccuracy indicates the degree to which each marker contributes to the improvement of accuracy in the classification of liver tissue/other tissue
- the Y-axis MeanDecreaseGini indicates the degree to which each marker contributes to the improvement of the impurity in the classification of liver/other tissue. Show. That is, the larger the value, the more clearly the marker can distinguish between liver tissue and other tissues.
- liver tissue-specific markers were 0.9988 for accuracy, 0.9884 for sensitivity, 0.9994 for specificity, and 0.9999 for area under the curve (AUC).
- cg12137206 and cg03792768 markers were finally selected as liver tissue-specific markers.
- Tables 4 and 5 information and sequences of the cg12137206 and cg03792768 markers are described.
- Probe_ID order cg12137206 GGGGACACGACTGCCCCAGCAACTTGCAGGAGTCGCACCACCTCCATGCACTTGTCCCGG[CG]CTCCCGGCCCGAGTAGCCTCCCGCAGCCCACACCTGCCCTGGCAGTTCGCACCCTAGCAG (SEQ ID NO: 1) cg03792768 TTCCCATTGGTTGAGACAGCACCGCCCAGCCAAAGCCCCCTTGTCCTCGCGCGGGTGCGC[CG]CCTGGACTCCCACCCTGGCCAGTCCCGGGCCCACCACCACTCTGGCATCCCCAGCCTGTC (SEQ ID NO: 2)
- [CG] refers to the target methylation site of each probe.
- liver tissues and other tissues were confirmed. As a result, it was found that both markers were methylated at high levels in both normal liver tissue (Liver N) and liver cancer tissue (Liver T) as shown in FIG. 4A, and as shown in FIG. 4B, both markers It was found that the methylation level was low in all other cancer tissues and other normal tissues.
- the cg12137206 and cg03792768 markers have a high level of methylation in liver tissue and a low level of methylation in other tissues, so the two markers can be used as liver tissue specific markers.
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Abstract
Description
| 유형 | 기타 조직 | 간 조직 | |
| 훈련 데이터 | 기타 조직 | 6345 | 3 |
| 간 조직 | 7 | 337 | |
| 검증 데이터 | 기타 조직 | 1586 | 1 |
| 간 조직 | 1 | 85 |
| 1개 | 2개 | 3개 | 4개 | 5개 | 6개 | |
| Accuracy | 0.9916 | 0.9976 | 0.99736 | 0.99784 | 0.99796 | 0.9982 |
| Kappa | 0.9142 | 0.97526 | 0.97264 | 0.97762 | 0.97886 | 0.98142 |
| Sensitivity | 0.923036 | 0.969686 | 0.965034 | 0.96963 | 0.971954 | 0.976718 |
| Specificity | 0.995338 | 0.999118 | 0.999118 | 0.99937 | 0.99937 | 0.999362 |
| Pos Pred Value | 0.915048 | 0.983764 | 0.983764 | 0.988172 | 0.988318 | 0.988428 |
| Neg Pred Value | 0.995844 | 0.998364 | 0.998112 | 0.998364 | 0.99849 | 0.998742 |
| Balanced Accuracy | 0.959188 | 0.984402 | 0.982078 | 0.9845 | 0.985664 | 0.988048 |
| 유형 | 기타 조직 | 간 조직 | |
| 훈련 데이터 | 기타 조직 | 6340 | 8 |
| 간 조직 | 11 | 333 | |
| 검증 데이터 | 기타 조직 | 1587 | 3 |
| 간 조직 | 0 | 82 |
| Probe_ID | CGRC_ID | Gene_ID | chr | start | end | CGI | CGI_loci |
| cg12137206 | CGRC_LTO.1 | GPAM | chr10 | 113943397 | 113943398 | chr10:113943283-113943657 | pCGI |
| cg03792768 | CGRC_LTO.2 | BDH1 | chr3 | 197281934 | 197281935 | chr3:197281605-197283128 | pCGI |
| Probe_ID | 서열 |
| cg12137206 | GGGGACACGACTGCCCCAGCAACTTGCAGGAGTCGCACCACCTCCATGCACTTGTCCCGG[CG]CTCCCGGCCCGAGTAGCCTCCCGCAGCCCACACCTGCCCTGGCAGTTCGCACCCTAGCAG (서열번호 1) |
| cg03792768 | TTCCCATTGGTTGAGACAGCACCGCCCAGCCAAAGCCCCCTTGTCCTCGCGCGGGTGCGC[CG]CCTGGACTCCCACCCTGGCCAGTCCCGGGCCCACCACCACTCTGGCATCCCCAGCCTGTC (서열번호 2) |
| 조직 | 샘플수 | 정확도_N | 정확도_T | |
| 혈액(whole blood, B) | KNIH | 400 | 1 | NA |
| GEO_WBset | 107 | 1 | NA | |
| 간 종양 형성 (liver tumorigenesis) | GSE48325 | 79 | 1 | NA |
| GSE49542 | 59 | 1 | NA | |
| 간세포암(HCC) | GSE43091 | 54 | 1 | 0.94 |
| GSE54503 | 132 | 1 | 0.9851 | |
| GSE56588 | 234 | 1 | 0.9872 | |
| GSE60753 | 66 | 0.9412 | 0.9375 | |
| TCGA_LIHC | 379 | 1 | 0.9921 | |
| CGRC_HCC | 307 | 1 | 0.9835 | |
| TCGA_CHOL | 45 | 1 | 0.5278 | |
| 다른 조직 | CGRC_CRC | 709 | 1 | 1 |
| CGRC_lung | 42 | NA | 1 | |
| 조직 | TCGA | 샘플수 | 정확도_N | 정확도_T |
| 방광 (bladder, BL) | BLCA | 434 | 1 | 1 |
| 유방 (breast, BR) | BRCA | 869 | 1 | 1 |
| 자궁 경부 (cervis, CE) | CESC | 312 | 1 | 1 |
| 대장 (colon, CO) | COAD | 335 | 1 | 1 |
| 직장 (rectum, RE) | READ | 106 | 1 | 1 |
| 식도 (esophagus, ES) | ESCA | 202 | 1 | 1 |
| 교모세포종 (glioblastoma, GB) | GBM | 154 | 1 | 1 |
| 두부 및 경부 (head and neck, HN) | HNSC | 580 | 1 | 1 |
| 신장 (kidney, KI) | KIRC | 480 | 1 | 1 |
| 신장 (kidney, KI) | KIRP | 321 | 1 | 1 |
| 폐 (lung, LU) | LUAD | 492 | 1 | 1 |
| 폐 (lung, LU) | LUSC | 412 | 1 | 1 |
| 이자 (pancreas, PA) | PAAD | 195 | 1 | 1 |
| 부신경절종 (paraganglioma, PC) | PCPG | 187 | 1 | 1 |
| 전립선 (prostate, PR) | PRAD | 549 | 1 | 1 |
| 위 (stomach, ST) | STAD | 397 | 1 | 1 |
| 육종 (sarcoma, SA) | SARC | 269 | 1 | 1 |
| 피부 (skin, SK) | SKCM | 475 | 1 | 1 |
| 흉선 (thymus, TH) | THCA | 574 | 1 | 1 |
| 흉선 (thymus, TH) | THYM | 126 | 1 | 1 |
| 자궁 (uterine, UC) | UCEC | 466 | 1 | 1 |
| 조직 | GEO # | 샘플수 | 정확도 |
| 방광 (BL) | GSE52955 | 30 | 1 |
| 유방 (BR) | GSE52865 | 57 | 1 |
| GSE39451 | 20 | 1 | |
| GSE60185 | 285 | 1 | |
| 자궁 경부 (CE) | GSE46306 | 44 | 1 |
| 대장 (colon, CO) | GSE39958 | 45 | 1 |
| GSE42752 | 63 | 1 | |
| GSE48684 | 147 | 1 | |
| 식도 (ES) | GSE52826 | 12 | 1 |
| 교모세포종 (GB) | GSE36278 | 142 | 0.9787 |
| GSE58298 | 40 | 1 | |
| GSE60274 | 77 | 0.987 | |
| 두부 및 경부 (HN) | GSE40005 | 24 | 1 |
| GSE38266 | 42 | 0.9286 | |
| 신장 (KI) | GSE50874 | 85 | 1 |
| GSE61441 | 92 | 1 | |
| 폐 (LU) | GSE39279 | 444 | 1 |
| GSE52401 | 244 | 1 | |
| GSE56044 | 136 | 1 | |
| 이자 (PA) | GSE49149 | 196 | 1 |
| 부신경절종 (PC) | GSE43293 | 24 | 1 |
| 전립선 (PR) | GSE47915 | 8 | 1 |
| GSE55598 | 48 | 1 | |
| 위 (ST) | GSE34387 | 76 | 0.9867 |
| 흉선 (TH) | GSE55111 | 11 | 1 |
| 자궁 (UC) | GSE45187 | 9 | 1 |
Claims (6)
- (a) 대상체(subject)로부터 분리된 생물학적 시료에서 DNA를 분리하는 단계; 및(b) 상기 분리된 DNA에서 서열번호 1 및 서열번호 2로 표시되는 서열의 CpG 부위의 메틸화 수준을 측정하는 단계;를 포함하는 생물학적 시료의 간 조직 기원 여부를 판별하는 방법.
- 제1항에 있어서, 상기 생물학적 시료는 대상체로부터 분리된 조직, 조직 단편, 세포, 세포 단편, 혈액, 혈장, 체액, 대변 및 소변으로 이루어진 군에서 선택되는 것인, 생물학적 시료의 간 조직 기원 여부를 판별하는 방법.
- 제1항에 있어서,상기 (b) 단계는 PCR, 메틸화 특이 PCR(methylation specific PCR), 실시간 메틸화 특이 PCR(real time methylation specific PCR), MethyLight PCR, MehtyLight digital PCR, EpiTYPER, 메틸화 DNA 특이적 결합 단백질을 이용한 PCR, 정량 PCR, DNA 칩, 분자 비콘(molecular beacon), MS-HRM (Methylation-sensitive high resolution melting), 비대칭 PCR (asymmetric PCR), 비대칭 PCR MS-HRMA (asymmetric PCR Methylation-sensitive high resolution melting analysis), 재조합효소-중합효소 증폭법 (Recombinase Polymerase Amplification), LAMP법(Loop-Mediated Isothermal Amplification), Eclipse probe, 차세대 염기서열분석 패널(NGS panel), 파이로시퀀싱 및 바이설파이트 시퀀싱으로 이루어진 군에서 선택되는 방법으로 수행되는 것인, 생물학적 시료의 간 조직 기원 여부를 판별하는 방법.
- (a) 대상체로부터 분리된 생물학적 시료에서 DNA를 분리하는 단계; 및(b) 상기 분리된 DNA에서 서열번호 1 및 서열번호 2로 표시되는 서열의 CpG 부위의 메틸화 수준을 측정하는 단계;를 포함하는 생물학적 시료에서 간 조직 유래 DNA를 검출하는 방법.
- 서열번호 1 및 서열번호 2로 표시되는 서열의 메틸화 수준을 측정할 수 있는 제제를 포함하는 생물학적 시료의 간 조직 기원 여부 판별용 조성물.
- 제5항에 있어서, 상기 메틸화 수준을 측정할 수 있는 제제는 서열번호 1 및 서열번호 2로 표시되는 서열의 CpG 부위에 결합하는 프라이머, 프로브 또는 안티센스 핵산인 것인 생물학적 시료의 간 조직 기원 여부 판별용 조성물.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202080084761.3A CN114787386B (zh) | 2019-10-08 | 2020-09-29 | 确定生物样本是否源自肝脏组织的方法 |
| JP2022521197A JP7412549B2 (ja) | 2019-10-08 | 2020-09-29 | 生物学的試料が肝組織由来であるか否かを判別する方法 |
| EP20873439.2A EP4043585A4 (en) | 2019-10-08 | 2020-09-29 | Method for determining if origin of biological sample is from liver tissue |
| US17/766,301 US20230257812A1 (en) | 2019-10-08 | 2020-09-29 | Method for determining if origin of biological sample is from liver tissue |
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| KR102103885B1 (ko) * | 2019-10-08 | 2020-04-24 | 주식회사 레피다인 | 생물학적 시료의 간 조직 유래 여부를 판별하는 방법 |
| CN114807325A (zh) * | 2021-01-22 | 2022-07-29 | 上海羿鸣生物科技有限公司 | 单引物扩增建库技术在检测片段化dna分子断点信息中的应用及试剂盒 |
| CN117355616A (zh) | 2021-05-21 | 2024-01-05 | 奥弗奥密克斯生物技术研究与开发股份公司 | 用于肝细胞癌的dna甲基化生物标志物 |
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| JP6369857B2 (ja) * | 2013-05-29 | 2018-08-08 | シスメックス株式会社 | 肝細胞癌に関する情報の取得方法、ならびに肝細胞癌に関する情報を取得するためのマーカーおよびキット |
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Also Published As
| Publication number | Publication date |
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| EP4043585A4 (en) | 2024-11-06 |
| CN114787386B (zh) | 2025-04-01 |
| US20230257812A1 (en) | 2023-08-17 |
| JP7412549B2 (ja) | 2024-01-12 |
| EP4043585A1 (en) | 2022-08-17 |
| JP2022551633A (ja) | 2022-12-12 |
| KR102103885B1 (ko) | 2020-04-24 |
| CN114787386A (zh) | 2022-07-22 |
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