KR20200013955A - 소거 프로브 기반 염색체 수적이상 검출방법 및 염색체 수적이상 검출용핵산의 조성물 - Google Patents
소거 프로브 기반 염색체 수적이상 검출방법 및 염색체 수적이상 검출용핵산의 조성물 Download PDFInfo
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- KR20200013955A KR20200013955A KR1020180089224A KR20180089224A KR20200013955A KR 20200013955 A KR20200013955 A KR 20200013955A KR 1020180089224 A KR1020180089224 A KR 1020180089224A KR 20180089224 A KR20180089224 A KR 20180089224A KR 20200013955 A KR20200013955 A KR 20200013955A
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Abstract
Description
도 2는 본 발명에 따른 소거 프로브 사용을 통해 소거비율에 따른 분석적 해상도 변화를 나타낸 모식도이다
도 3은 본 발명에 따른 표적 염기서열의 선별과 표적 염기서열의 증폭 반응을 위한 프라이머 선별조건을 나타내는 도식이다.
도 4는 본 발명에 따라 염색체 비율 이상의 여부를 판별하기 위한 실시간 중합효소연쇄반응(real-time PCR) 조건을 나타내는 도식이다.
도 5는 본 발명에 따른 검출 프로브와 소거 프로브를 나타낸 모식도로서, (A)는 표적 염기서열 및 대조 염기서열에 모두 결합하는 비형광 소거 프로브를 나타낸 것이고, (B)는 대조 염기서열에만 결합하는 비형광 소거 프로브를 나타낸 것이며, (C)는 대조 염기서열에만 결합하는 형광 소거 프로브를 나타낸 것이다.
도 6은 본 발명에 따른 다운증후군 세포주를 사용하여 분석한 결과로서, (A)와 (B)는 서로 다른 대조 염기서열과 표적 염기서열을 바탕으로 분석한 결과이다.
도 7은 본 발명에 따른 에드워드증후군 세포주를 사용하여 분석한 결과로서, (A)와 (B)는 서로 다른 대조 염기서열과 표적 염기서열을 바탕으로 분석한 결과이다.
도 8은 본 발명에 따른 파타우증후군 세포주를 사용하여 분석한 결과로서, (A)와 (B)는 서로 다른 대조 염기서열과 표적 염기서열을 바탕으로 분석한 결과이다.
도 9는 본 발명에 따른 다운증후군 세포주를 사용한 DNA 비율별 민감도 결과예시로서 (A)와 (B)는 서로 다른 대조 염기서열과 표적 염기서열을 바탕으로 분석한 결과이다.
도 10은 본 발명에 따른 대조 염기서열만을 소거하는 비형광 프로브 사용을 통한 분석적 해상도 상승을 나타낸 결과이다.
도 11은 본 발명에 따른 표적 염기서열과 대조 염기서열을 동시에 소거하는 비형광 프로브 사용을 통한 분석적 해상도 상승을 나타낸 결과이다.
도 12는 본 발명에 따른 대조 염기서열을 표적한 형광 소거 프로브를 이용한 결과값 보정을 나타낸 모식도이다.
도 13은 본 발명에 따른 결과값 보정에 대한 결과 예시이다.
도 14는 표준물질과 임상샘플을 비교 분석한 결과를 나타낸 것이다.
서열번호 | Name | Sequence(5'-3') | Position (bp)* | Target |
1 | DS_F1 | AGAGGTCATAGAAGGTTATGAAATAGC | Chr21:29,066,953-29,067,073 Chr1:147,204,433-147,204,555 |
Down Syndrome |
2 | DS_R1 | GAGGTACGAAGTAGAGATGAGACTTC | ||
3 | DS_F2 | CAGCAAGGTTGAAATTGGGAATG | Chr21:17,517,415-17,517,544 Chr1:52,087,749-52,087,880 |
|
4 | DS_R2 | GAGTAGGAGAGTGGTTGAGGAAATCC | ||
5 | DS_F3 | CAAACTGGAATAGCTAGCATGTGCTTGC | Chr21:17,517,519-17,517,644 Chr4:52,087,649-52,087,774 |
|
6 | DS_R3 | GGACATTCCCAATTTCAACCTTGCTG | ||
7 | DS_F4 | GGGACATGATTTGTAAAGTTCAAGGC | Chr21:25,769,018-25,769,131 Chr7:63,894,430-63,894,543 |
|
8 | DS_R4 | CACATTCTGTGACCAAACGGTTCAAC | ||
9 | DS_F5 | CCACAGGGCTAAAGCAACCATCTCC | Chr21:33,577,024-33,577,151 Chr1:157,711,009-157,711,136 |
|
10 | DS_R5 | CTCCCTTCTTATGACCCAAGTGGCT | ||
11 | ES_F1 | CAGGGAAAATGACCTTCACTGCTG | Chr18:51,126,794-51,126,903 Chr1:35,420,274-35,420,383 |
Edward Syndrome |
12 | ES_R1 | CATCCCCTTTACCTTAGTTTACCCAC | ||
13 | ES_F2 | GTGCTGGTGGCAGTGTTATTTCC | Chr18:26,965,287-26,965,406 Chr4:22,614,174-22,614,293 |
|
14 | ES_R2 | AGTAATGTGTTGTCAGTTCACTGAGG | ||
15 | ES_F3 | GGAGCTGCGACACGGAGAA | Chr18:61,816,256-61,816,374 Chr9:5,418,772-5,418,890 |
|
16 | ES_R3 | CAAGCACACCTGCTGTTCA | ||
17 | ES_F4 | CAGTGCGCGAAATGTAGTTTTG | Chr18:3,580,328-3,580,443 Chr15:84,801,962-84,802,077 |
|
18 | ES_R4 | GTGTAGCACAAACCACAGAGGAGAC | ||
19 | ES_F5 | CCTCCTCCCTGTCTTCTCTGATTC | Chr18:3,581,283-3,581,403 Chr15:84,802,918-84,803,038 |
|
20 | ES_R5 | CAAACAGAGGTGTGCAGCAGAGG | ||
21 | PS_F1 | CTGCCTTTTGAACCAGTTAGTCTGGAG | Chr13:65,442,145-65,442,236 Chr3:12,157,715-12,157,806 |
Patau Syndrome |
22 | PS_R1 | TCCCTTCTCTACTCTGACTCCTACC | ||
23 | PS_F2 | CCTCAACAGGAGAGCAGAAGGCTC | Chr13:21,351,718-21,351,840 Chr6:5,824,619-5,824,740 |
|
24 | PS_R2 | GTGTGCTTCAAGGCTCAGTTAGTG | ||
25 | PS_F3 | CCCCATGCTGCCCAGTCCTG | Chr13:21,345,064-21,345,164 Chr6:5,831,357-5,831,457 |
|
26 | PS_R3 | CTAGGTTCTCTACGGCCTCTTGTTACT | ||
27 | PS_F4 | GCGTTCTTGTTCTCTAGCTTCCTG | Chr13:19,647,040-19,647,128 Chr12:7,438,941-7,439,029 |
|
28 | PS_R4 | GATACCGATGTCAGAGGCAGGAGG | ||
29 | PS_F5 | GTTTTGTTTCTCTTCTCTGCTGTCGG | Chr13:19,646,853-19,646,949 Chr12:7,439,120-7,439,216 |
|
30 | PS_R5 | CCAGGTGGAATCTGAATCAAGTGTAC |
서열번호 | Name | Sequence(5'-3') | Fluor | Target |
31 | DS_P1 | Dabcyl-ATTTGGTATGTTGTTCTG-O-K | TxR | Down1 |
32 | DS_P2 | Dabcyl-TCATCCCCCAACACAA-O-K | TxR | Down2 |
33 | DS_P3 | Dabcyl-GTTCTTAATAGCAGGTAC-O-K | TxR | Down3 |
34 | DS_P4 | Dabcyl-GACTCTTATTGGATACAG-O-K | TxR | Down4 |
35 | DS_P5 | Dabcyl-GGTATGTTGTGTGATG-O-K | TxR | Down5 |
36 | DS_P6 | Dabcyl-GGTATGGTTCCCTTAGA-O-K | TxR | Down6 |
37 | DS_P7 | Dabcyl-CCCAGTCGTCAGCAA-O-K | TxR | Down7 |
38 | DS_P8 | Dabcyl-CTCACCAAACTCCCAG-O-K | TxR | Down8 |
39 | DS_P9 | Dabcyl-GAACCCCGCTAAGG-O-K | TxR | Down9 |
40 | DS_P10 | Dabcyl-GGGCTTGTTCAGCT-O-K | TxR | Down10 |
41 | ES_P1 | Dabcyl-TTCTGGGTCAAGCCT-O-K | TxR | Edward1 |
42 | ES_P2 | Dabcyl-AGCTCCATAGCAGTG-O-K | TxR | Edward2 |
43 | ES_P3 | Dabcyl-TGGTCCTCATCTGCTG-O-K | TxR | Edward3 |
44 | ES_P4 | Dabcyl-GCTCGAATTTCAGAG-O-K | TxR | Edward4 |
45 | ES_P5 | Dabcyl-CACTGGCTTATCATGTCT-O-K | TxR | Edward5 |
46 | ES_P6 | Dabcyl-ATTATTCCGAACTCTAGC-O-K | TxR | Edward6 |
47 | ES_P7 | Dabcyl-CAGACCTAAGTTCAAG-O-K | TxR | Edward7 |
48 | ES_P8 | Dabcyl-GATGATTCTGAGCACA-O-K | TxR | Edward8 |
49 | ES_P9 | Dabcyl-CCCCAGGCTGCTTAT-O-K | TxR | Edward9 |
50 | ES_P10 | Dabcyl-TGA CTC TAA AGC AGA-O-K | TxR | Edward10 |
51 | PS_P1 | Dabcyl-CTCTAGTTCGCCATAGCC-O-K | TxR | Patau1 |
52 | PS_P2 | Dabcyl-CCACCATTAGTGCCTCT-O-K | TxR | Patau2 |
53 | PS_P3 | Dabcyl-CCTCAAGCCACACAA-O-K | TxR | Patau3 |
54 | PS_P4 | Dabcyl-TGTCCTCAGCCTTTCTCG-O-K | TxR | Patau4 |
55 | PS_P5 | Dabcyl-CCCTTCACTGTCATCCT-O-K | TxR | Patau5 |
56 | PS_P6 | Dabcyl-CCAGCAGCCTCCACA-O-K | TxR | Patau6 |
57 | PS_P7 | Dabcyl-GCTGTGTCAGTCCTG-O-K | TxR | Patau7 |
58 | PS_P8 | Dabcyl-CAGTTGACATTAGTAAAT-O-K | TxR | Patau8 |
59 | PS_P9 | Dabcyl-CTCCCGAGCTGACTCC-O-K | TxR | Patau9 |
60 | PS_P10 | Dabcyl-AAATCCGCCCTGAC-O-K | TxR | Patau10 |
서열번호 | Name | Sequence (5'-3') | Fluor | Target |
61 | E-Probe 1 | GATACAGTGCAGC | non | Down |
62 | E-Probe 2 | GATACAGTGCAGCG | non | Down |
63 | E-Probe 3 | GGATACAGTGCAGCG | non | Down |
64 | E-Probe 4 | GTGTGATGATCAGC | non | Down |
65 | E-Probe 5 | GTGTGATGATCAGCA | non | Down |
66 | E-Probe 6 | GTGTGATGATCAGCAC | non | Down |
67 | E-Probe 7 | ATTTGGTATGTTGTTCTG | non | Down |
68 | E-Probe 8 | TCATCCCCCAACACAA | non | Down |
69 | E-Probe 9 | GTTCTTAATAGCAGGTAC | non | Down |
70 | E-Probe 10 | GACTCTTATTGGATACAG | non | Down |
71 | E-Probe 11 | GGTATGAGGTGTGA | non | Down |
72 | E-Probe 12 | Dabcyl-ATTTGGTACGTTGTTCTG-O-K | FAM | Down |
73 | E-Probe 13 | Dabcyl-TCATCTCCCAGCACAA-O-K | FAM | Down |
74 | E-Probe 14 | Dabcyl-GTTCTTAACAGCAGGTAC-O-K | FAM | Down |
75 | E-Probe 15 | Dabcyl-GACTCTTACTGGATACAG-O-K | FAM | Down |
76 | E-Probe 16 | Dabcyl-GGTATGAGGTGTGA-O-K | FAM | Down |
77 | E-Probe 17 | Dabcyl-TTCTGGATCAAGCCT-O-K | FAM | Edward |
78 | E-Probe 18 | Dabcyl-AGCTCCGTAGCAGT-O-K | FAM | Edward |
79 | E-Probe 19 | Dabcyl-GGTCCTCGTCTGCTG-O-K | FAM | Edward |
80 | E-Probe 20 | Dabcyl-GCTCGAGTTTCAGAG-O-K | FAM | Edward |
81 | E-Probe 21 | Dabcyl-CACTGGCTCATCATGTCT-O-K | FAM | Edward |
82 | E-Probe 22 | Dabcyl-CTCTAGTTCTCCATAGCC-O-K | FAM | Patau |
83 | E-Probe 23 | Dabcyl-CCACCATCAGTGCCTCT-O-K | FAM | Patau |
84 | E-Probe 24 | Dabcyl-CCTCAAACCACACAA-O-K | FAM | Patau |
85 | E-Probe 25 | Dabcyl-TGTCCTCAACCTTTCTCG-O-K | FAM | Patau |
86 | E-Probe 26 | Dabcyl-CCCTTCATTGTCATCCT-O-K | FAM | Patau |
# | 세포주 | |
1 | NA01137 | Trisomy 21 |
2 | NA01920 | Trisomy 21 |
3 | NA01921 | Trisomy 21 |
4 | NA02067 | Trisomy 21 |
5 | NA00143 | Trisomy 18 |
6 | NA02422 | Trisomy 18 |
7 | NA02732 | Trisomy 18 |
8 | NA03623 | Trisomy 18 |
9 | NA00526 | Trisomy 13 |
10 | NA03330 | Trisomy 13 |
11 | NA02948 | Trisomy 13 |
12 | NG12070 | Trisomy 13 |
Claims (14)
- a) 정상시료 및 대상시료에서 DNA를 각각 수득하는 단계;
b) 염색체 수 이상과 관련이 없는 염색체 상에 위치한 대조 염기서열과 염색체 수 이상과 관련된 염색체 상에 위치한 표적 염기서열을 동일한 프라이머를 사용하여 증폭하는 단계;
c) 상기 대조 염기서열 또는 표적 염기서열과 1 또는 2개의 염기 서열이 상이한 분석 프로브; 및 분석 프로브의 표적 염기서열 또는 대조 염기서열 혼성화 서열의 일부 또는 전부를 포함하고, 분석 프로브보다 상기 b) 단계의 증폭산물과 결합력이 높은 소거 프로브를 이용하여 상기 증폭산물과 혼성화시키는 단계; 및
d) 상기 c) 단계에서 혼성화된 정상시료와 대상시료 반응물의 융해곡선을 분석하여 염색체 수적 이상을 판별하는 단계;
를 포함하는 염색체 수적이상 검출방법.
- 제1항에 있어서, 상기 b) 단계의 대조 염기서열의 프라이머 또는 프로브 혼성화 영역의 상동성은 표적 염기서열의 프라이머 또는 프로브 혼성화 영역과 90% 이상인 것을 특징으로 하는 염색체 수적이상 검출방법
- 제1항에 있어서, 상기 c) 단계의 분석 프로브는 대조 염기서열 또는 표적염기서열과 완전 혼성화(perfect match) 또는 불완전 혼성화(mismatch)를 이룰 경우, 융해 온도 차이가 8℃ 이상인 것을 특징으로 하는 염색체 수적이상 검출방법.
- 제1항에 있어서, 상기 c) 단계의 분석 프로브는 PNA(Peptide Nucleic Acid)이고, 양 말단에 리포터(reporter) 및 소광자(quencher)가 결합되어 있는 것을 특징으로 하는 염색체 수적이상 검출방법.
- 제4항에 있어서, 상기 리포터 (reporter)는 FAM (6-carboxyfluorescein), Texas red, HEX (2',4',5',7',-tetrachloro- 6-carboxy-4,7-dichlorofluorescein) 및 Cy5로 구성되는 군에서 선택되는 1개 이상인 것을 특징으로 하는 염색체 수적이상 검출방법.
- 제4항에 있어서, 상기 소광자 (quencher)는 TAMRA (6-carboxytetramethyl-rhodamine), BHQ1, BHQ2 및 Dabcyl으로 구성되는 군에서 선택되는 1개 이상인 것을 특징으로 하는 염색체 수적이상 검출방법.
- 제1항에 있어서, 상기 c) 단계의 소거 프로브는 표적 염기서열 또는 대조 염기서열 증폭산물을 소거하는 프로브; 표적 염기서열 및 대조 염기서열 증폭산물을 모두 소거하는 프로브; 및 대조 염기서열 증폭산물을 소거하는 프로브로 구성된 군에서 선택되는 것을 특징으로 하는 염색체 수적이상 검출방법.
- 제7항에 있어서, 상기 c) 단계의 소거 프로브는 분석 프로브와 경쟁적으로 대조 염기서열 또는 표적 염기서열의 증폭산물과 혼성화 하는 것을 특징으로 하는 염색체 수적이상 검출방법.
- 제8항에 있어서, 상기 소거 프로브는 올리고뉴클레오티드, LNA, PNA 및 이들의 혼합으로 구성된 군에서 선택되는 것을 특징으로 하는 염색체 수적이상 검출방법.
- 제1항에 있어서, 상기 c) 단계의 소거 프로브는 상기 b) 단계의 증폭산물을 50~90% 양으로 소거하는 것을 특징으로 하는 염색체 수적이상 검출방법.
- 제1항에 있어서, 상기 d) 단계의 융해곡선 분석은 하기의 방법으로 수행하는 것을 특징으로 하는 염색체 수적이상 검출방법:
a) 정상시료 유전자 증폭 산물의 불완전 혼성화 값/완전 혼성화 값 비율을 계산하는 단계;
b) 대상시료 유전자 증폭 산물의 불완전 혼성화 값/완전 혼성화 값 비율을 계산하는 단계;
c) a)에서 계산한 비율과 b)에서 계산한 비율이 같을 경우, 정상으로 결정하고, 다를 경우 염색체 수 이상으로 결정하는 단계.
- 제1항에 있어서, 2 종 이상의 프라이머, 2 종 이상의 분석 프로브 및 2 종 이상의 소거 프로브를 사용하고, 분석 프로브의 리포터가 상이한 것을 특징으로 하는 다중 염색체 수적이상 검출방법.
- i) 염색체 수 이상과 관련이 없는 염색체 상에 위치한 대조 염기서열과염색체 수 이상과 관련된 염색체 상에 위치한 표적 염기서열을 동일한 프라이머;
ii) 상기 대조 염기서열 또는 표적 염기서열과 1 또는 2개의 염기 서열이 상이한 분석 프로브; 및
iii) 분석 프로브의 표적 염기서열 또는 대조 염기서열 혼성화 서열의 일부 또는 전부를 포함하고, 분석 프로브보다 결합력이 높은 소거 프로브;
를 포함하는 염색체 수적이상 검출용 PCR 조성물.
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CN201980060332.XA CN113272444A (zh) | 2018-07-31 | 2019-07-23 | 基于消除探针的检测染色体数目异常的方法和用于检测染色体数目异常的核酸组合物 |
PCT/KR2019/009067 WO2020027482A1 (ko) | 2018-07-31 | 2019-07-23 | 소거 프로브 기반 염색체 수적이상 검출방법 및 염색체 수적이상 검출용핵산의 조성물 |
US17/265,102 US20220127665A1 (en) | 2018-07-31 | 2019-07-23 | Elimination probe-based method for detecting numerical chromosomal abnormalities, and nucleic acid composition for detecting numerical chromosomal abnormalities |
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