KR20140125647A - 조기 유방암 예후 예측 진단용 자동화 시스템 - Google Patents
조기 유방암 예후 예측 진단용 자동화 시스템 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 방법 중 FFPE 시료에서의 RNA 분리과정을 플로우 차트로 나타낸 것이다.
도 3은 16명의 환자 시료에서 9종의 유방암 예후 예측 증식 유전자 (P-gene), 6종의 유방암 예후 예측 면역 유전자 (I-gene), 5종의 표준유전자 (O-gene), 4종의 유방암 관련 공지 유전자 (R-gene)에서의 발현 여부 측정결과를 나타낸 것이다. 도면 중 적색 표시영역은 각 유전자별 개개인의 Cp 값이 측정된 영역이며, 녹색 표시영역은 발현되지 않거나, 아주 높은 Cp 값을 가지거나, 변곡점이 발생하는 등 Cp 값 측정이 기술적으로 불가능하여 Cp 값이 측정되지 않은 영역이다.
도 4는 멀티플렉스 Cp 측정 결과의 일례를 나타낸 것이다.
Claims (12)
- 유방암 환자의 예후 예측 진단에 필요한 정보를 제공하기 위하여, 환자의 시료로 부터 하기 단계를 포함하는 유방암 예후 예측치를 산출하는 방법:
(a) 환자의 유방암 조직을 포함하는 포르말린 고정 파라핀 포매 (formalin-fixed paraffin-embedded, FFPE) 시료에 파라핀 제거 및 세포용해용 버퍼를 처리하는 단계;
(b) 상기 (a) 단계의 시료에 단백질분해효소 (proteinase)를 처리하는 단계;
(c) 상기 (b) 단계의 시료에서 단백질 또는 세포 잔해물 (debris)을 제거하는 단계;
(d) 상기 (c) 단계의 시료에 DNA 분해효소를 처리하여 RNA를 수득하는 단계;
(e) 상기 RNA를 검출 유전자를 증폭할 수 있는 프라이머 세트 및 RT-qPCR 프리믹스와 혼합하는 단계;
(f) 상기 (e) 단계의 혼합물에서 cDNA (complementary DNA)를 생성시키는 단계;
(g) 상기 cDNA를 주형으로 하고, 상기 프라이머 세트를 PCR 프라이머로 하여 PCR 반응을 수행하는 단계;
(h) PCR 반응에 대한 Cp 값을 측정하는 단계;
(i) 유방암 예후 예측 진단용 증식 유전자에 대한 Cp값 및 유방암 예후 예측 진단용 면역 유전자에 대한 Cp 값을 표준유전자의 Cp 값으로 표준화하여 표준화된 발현 수준을 산출하는 단계;
(j) 표준화된 유방암 예후 예측 진단용 증식 유전자의 표준화된 발현 수준이 낮을수록, 그리고 표준화된 유방암 예후 예측 진단용 면역 유전자의 표준화된 발현 수준이 높을수록 유방암 예후가 좋은 것으로 유방암 예후 예측치를 산출하는 단계.
- 제1항에 있어서, 상기 검출 유전자는 유방암 예후 예측 진단용 증식 유전자, 유방암 예후 예측 진단용 면역 유전자 및 표준유전자인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 RT-qPCR 프리믹스는 역전사 반응을 위한 역전사 효소, PCR 반응을 위한 DNA 중합효소, PCR 반응의 정량적 검출을 위한 형광 염료, 역전사 반응 및 PCR 반응에 적합한 버퍼 및 dNTP를 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 표준유전자의 Cp값은 둘 이상의 표준유전자의 Cp 값의 기하평균(geomean)값인 것을 특징으로 하는 방법.
- 제2항에 있어서, 상기 유방암 예후 예측 진단용 증식 유전자는 표 1에 기재된 유전자로 이루어진 군에서 3개 이상 선택된 유전자인 것을 특징으로 하는 방법.
- 제2항에 있어서, 상기 유방암 예후 예측 진단용 면역 유전자는 표 2에 기재된 유전자로 이루어진 군에서 3개 이상 선택된 유전자인 것을 특징으로 하는 방법.
- 제2항에 있어서, 상기 표준유전자는 CTBP1 (C-terminal-binding protein 1), TBP (TATA-binding protein), HMBS (hydroxymethylbilane synthase), CUL1 (cullin 1) 및 UBQLN1 (Ubiquilin-1)로 이루어진 군에서 하나 이상 선택된 것임을 특징으로 하는 방법.
- 제1항 내지 제7항 중 어느 한 항에 있어서, 상기 방법은 자동화된(automated) 방법인 것을 특징으로 하는 방법.
- (a) FFPE 시료에서 핵산을 분리하는 수단;
(b) 핵산, 버퍼, 시약을 정해진 시간에 정해진 위치로 정해진 양으로 분해하는 분배 수단;
(c) PCR 반응의 수행이 가능하며, 형광 신호 검출에 의한 Cp 값의 측정이 가능한 정량적 PCR(quantatative PCR, qPCR) 수단;
(d) 연산 처리장치; 및
(e) 연산 처리장치에 의해서 실행되며, 상기 Cp 값을 발현 수준으로 변환하고, 발현 수준의 평균값을 산출하며, 정해진 산식에 따라 유방암 예후 예측치를 산출하는 컴퓨터 판독 가능한 매체
를 포함하는 유방암 예후 예측치 산출 장치.
- 제9항에 있어서, 상기 핵산은 RNA (ribonucleic acid)인 것을 특징으로 하는 장치.
- 제9항 또는 제10항에 있어서, 상기 장치는 자동화된 장치인 것을 특징으로 하는 장치.
- qPCR 수단에서 측정된 Cp 값을 유전자 정보와 대응시키고,
유방암 예후 예측 진단용 증식 유전자의 Cp 값과 표준유전자의 Cp 값의 기하평균 간의 비를 구하여 각각 표준화된 유방암 예후 예측 진단용 증식 유전자의 발현 수준을 산출토록 하고,
유방암 예후 예측 진단용 면역 유전자의 Cp 값과 표준유전자의 Cp 값의 기하평균 간의 비를 구하여 각각 표준화된 유방암 예후 예측 진단용 면역 유전자의 발현 수준을 산출토록 하고,
유방암 예후 예측 진단용 증식 유전자의 평균 발현 수준과 유방암 예후 예측 진단용 면역 유전자의 평균 발현 수준을 산출토록 하고,
유방암 예후 예측 진단용 증식 유전자의 평균 발현 수준과는 음의 상관관계로, 유방암 예후 예측 진단용 면역 유전자의 평균 발현 수준과는 양의 상관관계로 유방암 예후 예측치를 산출하도록 하는 컴퓨터 판독 가능한 매체.
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US10718030B2 (en) | 2016-11-23 | 2020-07-21 | Gencurix Inc. | Methods for predicting effectiveness of chemotherapy for a breast cancer patient |
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US10718030B2 (en) | 2016-11-23 | 2020-07-21 | Gencurix Inc. | Methods for predicting effectiveness of chemotherapy for a breast cancer patient |
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JP2020500515A (ja) * | 2016-11-25 | 2020-01-16 | ジェンキュリクス インクGencurix Inc. | 乳がん患者の予後の予測方法 |
US11220716B2 (en) | 2016-11-25 | 2022-01-11 | Gencurix Inc. | Methods for predicting the prognosis of breast cancer patient |
WO2021230663A1 (ko) * | 2020-05-12 | 2021-11-18 | 서울대학교산학협력단 | 초기 유방암 환자의 예후 예측 방법 |
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