WO2022250517A1 - 전립선암 진단용 바이오마커 및 이의 용도 - Google Patents
전립선암 진단용 바이오마커 및 이의 용도 Download PDFInfo
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- WO2022250517A1 WO2022250517A1 PCT/KR2022/007695 KR2022007695W WO2022250517A1 WO 2022250517 A1 WO2022250517 A1 WO 2022250517A1 KR 2022007695 W KR2022007695 W KR 2022007695W WO 2022250517 A1 WO2022250517 A1 WO 2022250517A1
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- mirna
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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
- C12Q1/6883—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material
- C12Q1/6886—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material for cancer
-
- 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
- C12Q2600/178—Oligonucleotides characterized by their use miRNA, siRNA or ncRNA
Definitions
- the composition is a composition for diagnosing prostate cancer comprising an agent capable of measuring the expression level of the combination of: (a) lncRNA and miRNA, (b) mRNA and miRNA of a fusion gene, or ( c) mRNA of lncRNA, miRNA, and fusion gene, wherein the lncRNA is at least one selected from PCA3 and MALAT1, and the mRNA of the fusion gene is TMPRSS2:ERG.
- Figures 2 and 3 show the results for single marker analysis:
- Figure 2 is a box plot for trend analysis of target gene expression;
- 3 is a Receiver Operator Characteristic (ROC) curve and Area Under the Curve (AUC) for biomarker performance analysis.
- ROC Receiver Operator Characteristic
- AUC Area Under the Curve
- prostate cancer used in the present invention is a malignant tumor arising in the prostate, including 'localized prostate cancer' and 'advanced prostate cancer', but is not limited thereto.
- diagnosis means confirming the presence or characteristics of a pathological condition.
- diagnosis can be interpreted as confirming whether prostate cancer has developed or progressed.
- the term "marker or diagnostic marker” refers to a substance that can be diagnosed by distinguishing a subject with prostate cancer from normal cells or normal subjects, and refers to cells or cells in which prostate cancer has developed or progressed compared to normal cells.
- organic biomolecules such as polypeptides, proteins or nucleic acids (eg, lncRNA, miRNA, or mRNA, etc.), lipids, glycolipids, glycoproteins, or sugars (monosaccharides, disaccharides, oligosaccharides, etc.) that show an increase or decrease in a subject; Not limited to this.
- Prostate cancer diagnostic markers can be indicators for the onset and progression of prostate cancer, and thus can be used for diagnosis of prostate cancer onset, disease progression, and disease.
- the lncRNA prostate cancer diagnostic marker of the present invention is at least one selected from PCA3 and MALAT1, the mRNA prostate cancer diagnostic marker of the fusion gene is TMPRSS2:ERG, and the miRNA prostate cancer diagnostic markers are hsa_miR_375, hsa_miR_27b_3p, hsa_miR_31_5p, hsa_miR_125b_5p, hsa_miR_146a_3p, hsa_miR_146a_5p, hsa_miR_17_3p, hsa_miR_200b_3p, hsa_miR_21_5p, hsa_miR_1185_2_3p, hsa_miR_141_5p, hsa_miR_222_3p, hsa_miR_24_3p, hsa_
- each marker is known, and for example, the sequence of each marker may be a human-derived sequence.
- probe refers to a nucleic acid fragment such as RNA or DNA corresponding to a few bases to several hundreds of bases as short as possible to form a specific binding with a gene or mRNA, oligonucleotide It can be manufactured in the form of a probe, single stranded DNA probe, double stranded DNA probe, RNA probe, etc., and can be labeled for easier detection.
- the primers or probes of the present invention can be chemically synthesized using the phosphoramidite solid support method, or other well-known methods.
- Such nucleic acid sequences can also be modified using a number of means known in the art. Non-limiting examples of such modifications include methylation, capping, substitution of one or more homologues of a natural nucleotide, and modifications between nucleotides, such as uncharged linkages such as methyl phosphonates, phossotriesters, phosphoramidates, carbamates, etc.) or to charged linkages (eg phosphorothioates, phosphorodithioates, etc.).
- the six markers of the present invention namely lncRNA (PCA3)
- TMPRSS2:ERG mRNA of the fusion gene
- miRNA hsa_miR_125b_5p, hsa_
- the method for providing information for diagnosis of prostate cancer of the present invention may additionally use non-protein clinical information of the patient, that is, clinical information other than the marker, in addition to the analysis result of the biomarker.
- non-protein clinical information includes, for example, the patient's age, sex, weight, eating habits, body mass, ultrasound, computed tomography (CT), magnetic resonance imaging (MRI), angiography, endoscopic retrograde cholangiopancreatography, ultrasound endoscopy, tumor markers, and/or laparoscopy.
- Substances that specifically recognize the biomarkers of the present invention may be individually dispensed and present in a partitioned container, and therefore, the present invention includes molecules that can specifically recognize the markers of the present invention. It provides a device and / or mechanism that does.
- the present invention provides a method for diagnosing prostate cancer using the composition or kit for diagnosing prostate cancer.
- QIAGEN product (cat no. 55114) was used to extract miRNA from urine samples. Add 3 ml of urine sample to a 50 ml centrifuge tube into which 400 ⁇ l Proteinase K was pipetted, add 3.2 ml of Buffer ACL (without carrier RNA) and 1.0 ml of Buffer ATL and pulse-vortex for 30 seconds. mixed. After incubation at 60° C. for 30 minutes, 9.0 ml of buffer ACB and 7.0 ml of isopropanol were added to the lysate in the tube and mixed thoroughly by pulse-vortexing for 15-30 seconds.
- the QIAamp Mini column was placed in a clean 2 ml collection tube, the lid was removed and the assembly was incubated at 56°C for 10 minutes to completely dry the membrane. Place the QIAamp Mini column in a clean 1.5 ml elution tube, discard the 2 ml collection tube, and carefully apply 20-150 ⁇ l of Buffer AVE to the center of the QIAamp Mini membrane, close the lid and incubate at room temperature for 3 minutes. Finally, nucleic acids were eluted by centrifugation for 1 minute at maximum speed (20,000 ⁇ g, 14,000 rpm) in a microcentrifuge.
- PCa/BPH prostate cancer/benign prostatic hyperplasia
- PCa/BPH prostate cancer/benign prostatic hyperplasia
- RFECV Recursive Feature Elimination with Cross-Validation
- LOO Leave-One-Out
- RF Random Forest
- the PCA3_4 and TMPRSS2:ERG also showed high feature importance.
- 4 miRNA combinations (4 feature combinations) plus 1 lncRNA and 1 mRNA of the fusion gene (6 feature combinations) were selected for machine learning (ML). It became.
- the method is not limited thereto as an example of a method for selecting a biomarker.
- each machine learning algorithm showed significant differences in AUC and LOOCV scores.
- the average AUC was 0.71 ⁇ 0.08 (Standard Deviation), 0.66 ⁇ 0.12, and 0.80 ⁇ 0.10, and the average LOOCV scores were 0.727 ⁇ 0.066, 0.658 ⁇ 0.080, and 0.711 ⁇ 0.071.
- SVM and LR are more suitable than RF for single-biomarker-based ML classification.
- the overall trends of AUC and LOOCV scores appear to be more influenced by biomarkers than ML algorithms. Since the above results are based on a single biomarker, when the same analysis is applied to multiple biomarkers, better results are expected due to synergy between biomarkers.
- PCa/BPH prostate cancer/benign prostatic hyperplasia
- Logistic Regression can calculate a score to distinguish between a prostate cancer patient and a BPH patient, and the method for calculating the score is as follows.
- the final score is evaluated based on a critical value of 0.5, and a score of 0.5 or more is judged as prostate cancer, and a score of less than 0.5 is judged as benign prostatic hyperplasia.
- PCa/BPH prostate cancer/benign prostatic hyperplasia
- custom machine learning software using Python 3.8.5 was run on Linux.
- the software includes open libraries such as Scikit Learn, Scikit Plot and Panda.
- Scikit Learn's C-Support Vector Classification was used.
- the Radial Basis Function was used as a kernel, and a Balanced Class Weight was used in consideration of the number difference between classes.
- RF Random Forest
- Scikit Learn's Random Forest Classifier was used, and the model consists of 100 decision trees with balanced class weights.
- Logistic Regression was also imported from Scikit Learn, and all parameters followed the default settings except for the balanced class weights.
- the combination of four miRNAs (hsa_miR_125b_5p, hsa_miR_141_5p, hsa_miR_17_3p, and hsa_miR_30c_5p) derived through random forest analysis through the RFECV algorithm proved to be particularly useful as a detection marker, and one lncRNA (PCA3) and The combination with the addition of the mRNA of one fusion gene (TMPRSS2-ERG) also proved useful as a detection marker.
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Abstract
Description
Claims (24)
- miRNA의 발현 수준을 측정할 수 있는 제제를 포함하는 전립선암 진단용 조성물로서,상기 miRNA는 hsa_miR_125b_5p, hsa_miR_17_3p, hsa_miR_141_5p 및 hsa_miR_30c_5p를 포함하는 것인, 전립선암 진단용 조성물.
- 제1항에 있어서,상기 miRNA는 hsa_miR_21_5p, hsa_miR_24_3p, hsa_miR_30a_5p, hsa_miR_222_3p, hsa_miR_375, hsa_miR_27b_3p, hsa_miR_31_5p, hsa_miR_146a_3p, hsa_miR_146a_5p, hsa_miR_200b_3p, hsa_miR_1185_2_3p, hsa_miR_30a_3p 및 hsa_miR_30b_5p로 이루어진 군으로부터 선택되는 적어도 하나를 더 포함하는 것인, 전립선암 진단용 조성물.
- 제1항에 있어서,lncRNA 및 융합 유전자의 mRNA로 이루어진 군으로부터 선택된 적어도 하나를 더 포함하는 전립선암 진단용 조성물로서,상기 lncRNA는 PCA3 및 MALAT1 중에서 선택되는 적어도 하나이고,상기 융합 유전자의 mRNA는 TMPRSS2:ERG인 것인, 전립선암 진단용 조성물.
- 제3항에 있어서,상기 lncRNA는 PCA3인, 전립선암 진단용 조성물.
- 제1항에 있어서,상기 miRNA는 hsa_miR_21_5p, hsa_miR_24_3p, hsa_miR_30a_5p 및 hsa_miR_222_3p로 이루어진 군으로부터 선택되는 적어도 하나를 더 포함하는 것인, 전립선암 진단용 조성물.
- 제1항, 제2항 및 제5항 중 어느 한 항에 있어서,상기 제제는 miRNA에 각각 특이적으로 결합하는 프라이머 또는 프로브를 포함하는 것을 특징으로 하는, 전립선암 진단용 조성물.
- 제3항 또는 제4항에 있어서,상기 제제는 miRNA, lncRNA 또는 융합 유전자의 mRNA에 각각 특이적으로 결합하는 프라이머 또는 프로브를 포함하는 것을 특징으로 하는, 전립선암 진단용 조성물.
- 전립선암 진단을 위한 정보를 제공하는 방법으로서,대상체로부터 분리된 생물학적 시료에서 제1항, 제2항 및 제5항 중 어느 한 항의 miRNA의 발현 수준을 측정하는 단계; 및상기 miRNA의 발현 수준을 정상 대조군 시료의 miRNA의 발현 수준과 비교하는 단계를 포함하는, 방법.
- 제10항에 있어서,상기 miRNA의 발현 수준은 역전사효소 중합효소 연쇄반응(RT-PCR), 경쟁적 역전사효소 중합효소 연쇄반응(competitive RT-PCR), 정량적 역전사효소 중합효소반응(quantitative RT-PCR, qPCR), ddPCR(droplet digital PCR), 시퀀싱 (sequencing), RNase 보호 분석법(RNase protection method), 노던 블랏팅(Northern blotting) 또는 유전자 칩 분석법에 의하여 측정되는 것을 특징으로 하는, 방법.
- 제10항에 있어서,상기 발현 수준을 측정하는 단계는:대상체로부터 분리된 생물학적 시료에서 상기 miRNA를 추출하는 단계;추출된 miRNA로부터 cDNA를 합성하는 단계;합성한 cDNA에 특이적인 프라이머 쌍을 사용하여 cDNA를 증폭하는 단계; 및증폭된 cDNA를 검출하는 단계를 포함하는, 방법.
- 제10항에 있어서,상기 생물학적 시료는 조직, 세포, 소변, 타액, 정액, 전혈, 혈장 또는 혈청인 것을 특징으로 하는, 방법.
- 제13항에 있어서,상기 생물학적 시료는 소변인 것을 특징으로 하는, 방법.
- 제10항에 있어서,상기 miRNA의 발현 수준을 비교하는 단계는:Logistic Regression(LR), Support vector machine(SVM), random forest 및 Multi-Layer-Perceptron으로 이루어진 군으로부터 선택되는 머신 러닝 알고리즘을 이용하여 수행되는 것을 특징으로 하는, 방법.
- 제10항에 있어서,상기 miRNA의 발현 수준을 비교하는 단계는 Logistic Regression(LR)을 이용하여 수행되며, LOOCV (Leave-One-Out Cross-Validation) 값이 0.65 이상이고, AUC(Area Under the Curve) 값이 0.70이상인, 방법.
- 제10항에 있어서,상기 발현 수준을 측정하는 단계는 lncRNA, 융합 유전자의 mRNA 또는 이들의 조합의 발현을 측정하는 단계를 더 포함하고, 여기서 상기 lncRNA는 PCA3 및 MALAT1 중에서 선택되는 적어도 하나이며, 상기 융합 유전자의 mRNA는 TMPRSS2:ERG이고,상기 발현 수준을 비교하는 단계는 상기 lncRNA, 융합 유전자의 mRNA 또는 이들의 조합의 발현 수준을 정상 대조군 시료의 lncRNA, 융합 유전자의 mRNA 또는 이들의 조합의 발현 수준과 비교하는 단계를 더 포함하는, 방법.
- 제17항에 있어서,상기 miRNA와, lncRNA, 융합 유전자의 mRNA 또는 이들의 조합의 발현 수준은 역전사효소 중합효소 연쇄반응(RT-PCR), 경쟁적 역전사효소 중합효소 연쇄반응(competitive RT-PCR), 정량적 역전사효소 중합효소반응(quantitative RT-PCR, qPCR), ddPCR(droplet digital PCR), 시퀀싱 (sequencing), RNase 보호 분석법(RNase protection method), 노던 블랏팅(Northern blotting) 또는 유전자 칩 분석법에 의하여 측정되는 것을 특징으로 하는, 방법.
- 제17항에 있어서,상기 발현 수준을 측정하는 단계는:대상체로부터 분리된 생물학적 시료에서 상기 miRNA와, lncRNA, 융합 유전자의 mRNA 또는 이들의 조합을 추출하는 단계;추출된 miRNA와, lncRNA, 융합 유전자의 mRNA 또는 이들의 조합으로부터 cDNA를 합성하는 단계;합성한 cDNA에 특이적인 프라이머 쌍을 사용하여 cDNA를 증폭하는 단계; 및증폭된 cDNA를 검출하는 단계를 포함하는, 방법.
- 제17항에 있어서,상기 생물학적 시료는 조직, 세포, 소변, 타액, 정액, 전혈, 혈장 또는 혈청인 것을 특징으로 하는, 방법.
- 제20항에 있어서,상기 생물학적 시료는 소변인 것을 특징으로 하는, 방법.
- 제17항에 있어서,상기 miRNA와, lncRNA, 융합 유전자의 mRNA 또는 이들의 조합의 발현을 측정하는 단계는:Logistic Regression(LR), Support vector machine(SVM), random forest 및 Multi-Layer-Perceptron으로 이루어진 군으로부터 선택되는 머신 러닝 알고리즘을 이용하여 수행되는 것을 특징으로 하는, 방법.
- 제17항에 있어서,상기 miRNA와, lncRNA, 융합 유전자의 mRNA 또는 이들의 조합의 발현 수준을 비교하는 단계는 Logistic Regression(LR)을 이용하여 수행되며, LOOCV (Leave-One-Out Cross-Validation) 값이 0.65 이상이고, AUC(Area Under the Curve) 값이 0.70이상인, 방법.
- 제1항 내지 제5항 중 어느 한 항에 따른 조성물을 포함하는, 전립선암 진단용 키트.
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