KR20160016034A - 순환 종양 세포를 이용한 암 환자의 2차 치료용 치료제 반응성 진단 방법 - Google Patents
순환 종양 세포를 이용한 암 환자의 2차 치료용 치료제 반응성 진단 방법 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 방법 중 CTC 분리 방법의 개념도이다.
도 3은 본 발명의 방법에 따라 CTC 세포에서의 PCR 반응 결과의 일례이다.
| 프라이머 명칭 | 서열 | 서열번호 | 위치 |
| C1-F1 (EGFR18F) | tgaggatcttgaaggaaactga | 1 | 엑손 18 |
| C1-R1 (EGFR18R) | ctgtgccagggaccttacct | 2 | 엑손 18 |
| C5-F2 (EGFR19F) | tggatcccagaaggtgagaa | 3 | 엑손 19 |
| C5-R2 (EGFR19R) | gcagaaactcacatcgagga | 4 | 엑손 19 |
| C36-F1 (EGFR20F) | ccctccaggaagcctacg | 5 | 엑손 20 |
| C36-R1 (EGFR20R) | cagccgaagggcatga | 6 | 엑손 20 |
| C44-F1 (EGFR21F) | acaccgcagcatgtcaagat | 7 | 엑손 21 |
| C44-R1 (EGFR21R) | tgcctccttctgcatggtat | 8 | 엑손 21 |
| 프라이머 명칭 |
서열 | 서열 번호 |
위치 | 검출변이 |
| P1-2 | HEX-aagatcaaagtgctgggctccg | 9 | 엑손 18 | EGFR18P_WT |
| P1-3 | HEX-caaaaagatcaaagtgctgggctc | 10 | 엑손 18 | EGFR18P_WT |
| P2-2 | FAM-aagatcaaagtgctggCctccg | 11 | 엑손 18 | EGFR18P_2156G>C mt |
| P3-2 | FAM-aagatcaaagtgctgAgctccgg | 12 | 엑손 18 | EGFR18P_2155G>A mt |
| P4-2 | FAM-aagatcaaagtgctgTgctccgg | 13 | 엑손 18 | EGFR18P_2155G>T mt |
| P5-3 | HEX-ccgtcgctatcaaggaattaagagaagc | 14 | 엑손 19 | EGFR19P_WT |
| P6-2 | FAM-aaattcccgtcgctatcaAaacatc | 15 | 엑손 19 | EGFR19P_c.2235_2249 del 15 mt |
| P7 | FAM-ccgtcgctatcaaAATatctccgaaag | 16 | 엑손 19 | EGFR19P_c.2235_2252>AAT mt |
| P8 | FAM-tcccgtcgctatcaaGtctccgaaa | 17 | 엑손 19 | EGFR19P_c.2236_2253 del 18 mt |
| P9 | FAM-gtcgctatcaagGcatctccgaaag | 18 | 엑손 19 | EGFR19P_c.2237_2251 del 15 mt |
| P10 | FAM-attcccgtcgctatcaagGctcc | 19 | 엑손 19 | EGFR19P_c.2237_2254 del 18 mt |
| P11-2 | FAM-attcccgtcgctatcaaggTtccg | 20 | 엑손 19 | EGFR19P_c.2237_2255>T mt |
| P12-2 | FAM-aaattcccgtcgctatcaaGacat | 21 | 엑손 19 | EGFR19P_c.2236_2250 del 15 mt |
| P13 | FAM-gctatcaaggAtccgaaagccaaca | 22 | 엑손 19 | EGFR19P_c.2238_2255 del 18 mt |
| P14-2 | FAM-cccgtcgctatcaaggaGCcaacat | 23 | 엑손 19 | EGFR19P_c.2238_2248 >GC mt |
| P15-2 | FAM-ccgtcgctatcaaggaGCAatctccg | 24 | 엑손 19 | EGFR19P_c.2238_2252 >GCA mt |
| P16-2 | FAM-cccgtcgctatcaaggaaGcaacatc | 25 | 엑손 19 | EGFR19P_c.2239_2247del 9-1 mt |
| P17-5 | FAM-ccgtcgctatcaaggaaTctccgaa | 26 | 엑손 19 | EGFR19P_c.2239_2253del15mt (C17=C23=C25) |
| P18-2 | FAM-ccgtcgctatcaaggaAccgaaag | 27 | 엑손 19 | EGFR19P_c.2239_2256 del 18 mt |
| P19 | FAM-atcaaggaaCcaacatctccgaaag | 28 | 엑손 19 | EGFR19P_c.2239_2248 TTAAGAGAAG>C-2 mt |
| P20-2 | FAM-ccgtcgctatcaaggaaCAgaaagcc | 29 | 엑손 19 | EGFR19P_c.2239_2258 >CA mt |
| P21-2 | FAM-ccgtcgctatcaaggaatCatctccga | 30 | 엑손 19 | EGFR19P_c.2240_2251 del 12 mt |
| P22-2 | FAM-ccgtcgctatcaaggaaTcgaaag | 31 | 엑손 19 | EGFR19P_c.2240_2257 del 18 mt |
| 프라이머 명칭 |
서열 | 서열 번호 |
위치 | 검출변이 |
| P24-3 | FAM_gtcgctatcaaggaaccatctccg | 32 | 엑손 19 | EGFR19P_c.2239_2251>C mt |
| P26 | FAM-aaaattcccgtcgctatcaaggTT | 33 | 엑손 19 | EGFR19P_2237_2253>TTGCT mt |
| P27 | FAM-aaattcccgtcgctatcaaggaaG | 34 | 엑손 19 | EGFR19P_2239_2257>GT mt |
| P28 | FAM_aaattcccgtcgctatcGcaacatct | 35 | 엑손 19 | EGFR19P_c.2233_2247del15 mt |
| P29 | FAM_agaagcaacactcgatgtgagtttctgctt | 36 | 엑손 19 | EGFR19P_c.2253_2276del24 mt |
| P30-2 | FAM-ccgtcgctatcaaAATTCcaacatctc | 37 | 엑손 19 | EGFR19P_c.2235_2248>AATTC mt |
| P31-2 | FAM-ttcccgtcgctatcaagTatctccga | 38 | 엑손 19 | EGFR19P_c.2237_2252>T mt |
| P32-2 | FAM-ccgtcgctatcaaAATTCcatctccga | 39 | 엑손 19 | EGFR19P_c.2235_2251>AATTC mt |
| P33-2 | FAM-tcccgtcgctatcaaAATtccgaaag | 40 | 엑손 19 | EGFR19P_c.2235_2255>AAT mt |
| P34-2 | FAM-ccgtcgctatcaaggTCTcgaaagcca | 41 | 엑손 19 | EGFR19P_c.2237_2257>TCT mt |
| P35 | FAM_ctatcaaggaaCAAccgaaagccaaca | 42 | 엑손 19 | EGFR19P_c.2239_2256>CAA mt |
| P36-5 | HEX-ctgggcatctgcctcacctcca | 43 | 엑손 20 | EGFR20P_WT |
| P37 | FAM-agggcatgagctgcAtgatgagc | 44 | 엑손 20 | EGFR20P_c.2369C>T mt |
| P38-2 | FAM-cctacgtgatggccaTcgtggac | 45 | 엑손 20 | EGFR20P_c.2303G>T mt |
| P39 | FAM-gccagcgtgGCCAGCGTGg | 46 | 엑손 20 | EGFR20P_c.2307_2308 insGCCAGCGTG mt |
| P40-2 | FAM-cgtggacaacccccacCACgtg | 47 | 엑손 20 | EGFR20P_c.2319_2320 insCAC mt |
| P41-2 | FAM-ccagcgtggacGGTaacccccac | 48 | 엑손 20 | EGFR20P_c.2310_2311 insGGT mt |
| P42-2 | FAM-tggccagcgtggacaGCGTGGAC | 49 | 엑손 20 | EGFR20P_c.2311_2312 insGCGTGGACA mt |
| P43 | FAM_tggccagcgtggCCAGCGTGG | 50 | 엑손 20 | EGFR20P_c.2309_2310 AC>CCAGCGTGGAT mt |
| P44-4 | HEX-agattttgggctggccaaact | 51 | 엑손 21 | EGFR21P_WT |
| P45-5 | FAM-agatcacagattttgggcGgg | 52 | 엑손 21 | EGFR21P_C.2573T>G mt |
| P46-2 | FAM-ctggccaaacAgctgggtgcgg | 53 | 엑손 21 | EGFR21P_c.2582T>A mt |
| P47-2 | FAM-cacagattttgggcGTgccaaact | 54 | 엑손 21 | EGFR21Pc.2573_2574TG>GT mt |
Claims (12)
- 폐암 환자의 유전자 변이 정보 검출을 통한 2차 치료 (second line treatment) 판단을 위한 정보를 제공하기 위하여, 환자의 혈액 시료로부터 하기 단계를 포함하는 치료 반응성 예측치를 산출하는 방법:
(a) 환자의 혈액에서 CTC (circulating tumor cell)을 분리하는 단계;
(b) CTC 세포에서 게놈 DNA를 분리하는 단계;
(c) 상기 게놈 DNA, 게놈 DNA 유전자 변이에 특이적인 프라이머 및 프로브를 포함하는 PCR 반응 용액을 준비하는 단계;
(d) 표준 물질 벡터 (vector)를 제한효소를 처리하여 선형 DNA가 되도록 한 표준 DNA, 게놈 DNA 유전자 변이에 특이적인 프라이머 및 프로브를 포함하는 표준 PCR 반응 용액을 준비하는 단계;
(e) 상기 (d)단계의 PCR 반응 용액 및 (f)단계의 표준 PCR 반응 용액을 각각 다수의 작은 방울 (droplet)으로 미분화시키는 단계;
(f) 상기 다수의 작은 방울 각각에서 PCR 반응이 이루어지도록 PCR 반응을 수행하는 단계;
(g) 각 미분화된 작은 방울의 전부 또는 일부에서 PCR 반응 여부를 측정하는 단계;
(h) PCR 반응 용액과 표준 PCR 반응 용액에서의 PCR 반응 여부의 측정값에서 돌연변이율 (% mutation)을 산출하는 단계;
(i) 상기 돌연변이율이 높을수록 치료 반응성 (responsiveness)이 높을 것으로 예측하는 예측치를 산출하는 단계.
- 제1항에 있어서, 상기 치료 반응성은 EGFR (epidermal growth factor receptor)의 저해제에 대한 치료 반응성인 것을 특징으로 하는 방법.
- 제2항에 있어서, 상기 EGFR 저해제는 엘로티닙 (erlotinib) 또는 제피티닙 (gefitinib)인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 게놈 DNA 유전자는 EGFR (epidermal growth factor receptor) 유전자인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 게놈 DNA 유전자 변이에 특이적인 프라이머 및 프로브는 PCR 반응 용액 및 표준 PCR 반응 용액에 대해서 동일한 서열로 사용되며, 각각 독립적으로 서열번호 1의 정방향 프라이머, 서열번호 2의 역방향 프라이머 및 서열번호 9 내지 13으로 이루어진 군에서 선택된 프로브의 폴리뉴클레오티드 세트, 서열번호 3의 정방향 프라이머, 서열번호 4의 역방향 프라이머 및 서열번호 14 내지 42으로 이루어진 군에서 선택된 프로브의 폴리뉴클레오티드 세트, 서열번호 5의 정방향 프라이머, 서열번호 6의 역방향 프라이머 및 서열번호 43 내지 50으로 이루어진 군에서 선택된 프로브의 폴리뉴클레오티드 세트, 서열번호 7의 정방향 프라이머, 서열번호 8의 역방향 프라이머 및 서열번호 51 내지 54으로 이루어진 군에서 선택된 프로브의 폴리뉴클레오티드 세트로 이루어진 군에서 선택된 하나 이상인 것을 특징으로 하는 방법.
- 제5항에 있어서, 상기 프로브는 형광물질과 결합되어 있는 것을 특징으로 하는 방법.
- 제5항에 있어서, 상기 PCR 반응 용액에 첨가되는 프로브 및 표준 PCR 반응 용액에 첨가되는 프로브는 각각 상이한 형광물질과 결합되어 있는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 제한효소는 ClaI인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 작은 방울은 10,000 내지 25,000개로 미분화되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 PCR 반응 여부의 측정은 각 미분화된 작은 방울 각각의 PCR 반응에 대한 형광값을 측정하는 것에 의해서 수행되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 돌연변이율 (% mutation)의 산출은 PCR 반응 용액과 표준 PCR 반응 용액에서의 PCR 반응 여부의 측정값을 비교하여 표준 PCR 반응 용액에서의 측정값에 상응하는 역치값 이상의 비율로 돌연변이율 (% mutation)을 산출하는 것임을 특징으로 하는 방법.
- 제1항에 있어서, 상기 방법은 자동화 또는 반자동화에 의해서 수행되는 것임을 특징으로 하는 방법.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020140099187A KR101778789B1 (ko) | 2014-08-01 | 2014-08-01 | 순환 종양 세포를 이용한 암 환자의 2차 치료용 치료제 반응성 진단 방법 |
| PCT/KR2015/008025 WO2016018115A1 (ko) | 2014-08-01 | 2015-07-31 | 순환 종양 세포를 이용한 암 환자의 2차 치료용 치료제 반응성 진단 방법 |
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| KR1020140099187A KR101778789B1 (ko) | 2014-08-01 | 2014-08-01 | 순환 종양 세포를 이용한 암 환자의 2차 치료용 치료제 반응성 진단 방법 |
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| KR1020170023765A Division KR101850495B1 (ko) | 2017-02-22 | 2017-02-22 | 순환 종양 세포를 이용한 암 환자의 2차 치료용 치료제 반응성 진단 방법 |
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| KR20160016034A true KR20160016034A (ko) | 2016-02-15 |
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| KR (1) | KR101778789B1 (ko) |
| WO (1) | WO2016018115A1 (ko) |
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| WO2016018115A1 (ko) | 2016-02-04 |
| KR101778789B1 (ko) | 2017-09-14 |
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