KR20180059192A - 유방암 환자의 예후 예측 방법 - Google Patents
유방암 환자의 예후 예측 방법 Download PDFInfo
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Abstract
본 발명은 유방암의 예후와 유의한 상관성을 나타내는 유전자군 및 임상정보를 이용한 유방암 예후 예측방법에 관한 것으로, 본 발명의 방법을 통해 유방암 환자의 향후 전이 여부에 대한 예후를 보다 정확하게 예측할 수 있는 효과가 있어, 향후 유방암 치료의 방향에 대한 단서를 제시하는 목적으로 유용하게 사용할 수 있다.
Description
도 2는 알고리즘 산출 시험군 및 검증 시험군에서 BCT score의 분포를 나타낸 결과이다.
도 3은 BCT score에 따라 구분된 고위험군 및 저위험군의 10년 내 무원격전이 생존확률을 나타낸 도면이다.
도 4는 C-index를 통한 유방암 예후 예측 모델들의 예측력 평가 결과를 나타낸 도면이다.
Claims (16)
- 유방암 환자의 예후 예측에 필요한 정보를 제공하기 위하여, 하기 단계를 포함하는 유방암 예후 예측방법:
(a) 유방암 환자로부터 생물학적 시료를 수득하는 단계;
(b) 상기 (a) 단계의 시료로부터 UBE2C(Ubiquitin-conjugating enzyme E2C), TOP2A(Topoisomerase 2 alpha), RRM2(ribonucleotide reductase M2), FOXM1(Forkhead box M1) 및 MKI67(Marker of proliferation Ki-67)로 이루어진 군에서 선택된 하나 이상의 증식 관련 유전자 및 BTN3A2(Butyrophilin subfamily 3 member A2) 면역관련 유전자의 mRNA 발현 수준을 측정하는 단계
(c) 상기 (b) 단계에서 측정된 mRNA의 발현수준을 표준화 하는 단계; 및
(d) 상기 (c) 단계에서 표준화된 하나 이상의 증식 관련 유전자 및 면역관련 유전자의 조합에 의해 유방암의 예후를 예측하는 단계로서, 상기 증식관련 유전자의 과발현은 나쁜 예후인 것으로 및 상기 면역관련 유전자의 과발현은 좋은 예후인 것으로 유방암 예후를 예측하는 단계.
- 제1항에 있어서, 상기 유방암 예후는 재발, 전이 및 전이성 재발로 이루어진 군에서 선택된 어느 하나 이상인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 유방암은 에스트로겐 수용체, 프로게스테론 수용체 또는 에스트로겐 수용체 및 프로게스테론 수용체 양성이면서 HER2 음성인 유방암인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 유방암은 암전이분류(Tumor Node Metastasis:TNM) 시스템에 따라 0기 또는 1기로 분류되는 초기 유방암인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 (b) 단계 이후에 종양의 크기 및 pN-단계를 평가하는 단계를 추가적으로 포함하며, 상기 (d) 단계에서 종양의 크기가 클수록 및 pN-단계가 높을수록 예후가 좋지 않은 것으로 예후 예측치를 산출하는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 표준화는 CTBP1 (C-terminal-binding protein 1), CUL1 (cullin 1) 및 UBQLN1 (Ubiquilin-1)로 이루어진 군에서 하나 이상 선택된 표준유전자의 평균 발현량에 대한 비를 산출하는 것에 의해서 수행되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 시료는 환자의 암세포를 포함하는 조직의 포르말린 고정 파라핀 포매(formalin-fixed paraffin-embedded, FFPE) 시료, 신선한 조직(fresh tissue) 및 동결 조직으로 이루어진 군에서 선택되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 유전자의 발현량을 측정하기 위한 방법은 마이크로어레이, PCR(polymerase chain reaction), RT-PCR, 정량적 RT-PCR(qRT-PCR), 실시간 중합효소 연쇄반응(real-time PCR), 노던 블롯(northern blot), DNA 칩 및 RNA 칩으로 이루어진 군에서 선택된 어느 하나의 방법인 것을 특징으로 하는 방법.
- 유방암 환자의 예후 예측에 필요한 정보를 제공하기 위하여, 하기 단계를 포함하는 유방암 예후 예측방법:
(a) 유방암 환자로부터 생물학적 시료를 수득하는 단계;
(b) 상기 (a) 단계의 시료로부터 UBE2C(Ubiquitin-conjugating enzyme E2C), TOP2A(Topoisomerase 2 alpha), RRM2(ribonucleotide reductase M2), FOXM1(Forkhead box M1), MKI67(Marker of proliferation Ki-67) 및 BTN3A2(Butyrophilin subfamily 3 member A2)의 mRNA 발현 수준을 측정하는 단계;
(c) 상기 유전자의 mRNA 발현 수준을 표준화하는 단계;
(d) 상기 유방암 환자의 종양의 크기 및 pN-단계를 평가하는 단계;
(e) 상기 (c) 단계에서의 표준화값 및 상기 (d) 단계에서의 종양의 크기 및 pN-단계를 하기 식 1과 2에 대입하여 수치를 계산하는 단계
[식 1]
Unscaled BCT score (U-BS) = a*△Ct_UBE2C + b*△Ct_TOP2A + c*△Ct_RRM2 + d*△Ct_FOXM1 + e*△Ct_MKI67 + f*△Ct_BTN3A2 + g*Tumor_size(cm) + h*pN(0 or 1)
[식 2]
BCT score = 0 if 0.8*Unscaled BCT score(U-BS) - 13.71 < 0
BCT score = 0.84*U-BS + 26.1 if 0≤ 0.8* U-BS - 13.71≤10
BCT score = 10 if 0.8*U-BS - 13.71>10
(예후 유전자의 값은 표준 유전자를 사용하여 계산된 표준화 된 mRNA 발현값이며, tumor size는 종양의 장축 길이, pN은 림프절 전이의 병리학적 판단에 따라 판정되는 값을 나타냄.
상기 a는 0.16 내지 1.09, b는 0 내지 0.71, c는 0 내지 0.53, d는 0 내지 0.57, e는 0 내지 0.35, f는 -1.02 내지 0, g는 0.25 내지 1.52 및 h는 0.19 내지 2.25임);및(f) 상기 (e) 단계에서 계산된 수치가 클수록 예후가 좋지 않은 것으로 예후를 예측하는 단계.
- 제9항에 있어서, 상기 (e) 단계에서의 수치가 4 이상인 경우 예후가 좋지 않은 것으로, 4 미만인 경우 예후가 좋은 것으로 예후 예측치를 산출하는 것을 특징으로 하는 방법.
- UBE2C, TOP2A, RRM2, FOXM1, MKI67 및 BTN3A2 유전자의 발현량을 측정하는 제제를 포함하는 유방암 환자의 예후 예측용 조성물.
- 제11항에 있어서, 상기 조성물은 CTBP1, CUL1 및 UBQLN1 유전자의 발현량을 측정하는 제제를 추가적으로 포함하는 것을 특징으로 하는 조성물.
- 제12항에 있어서, 상기 발현량을 측정하는 제제는 UBE2C, TOP2A, RRM2, FOXM1, MKI67 및 BTN3A2 유전자에 특이적으로 결합하는 프라이머쌍인 것을 특징으로 하는 조성물.
- 제13항에 있어서, 상기 프라이머쌍은 서열번호 1 내지 12의 서열로 이루어진 것을 특징으로 하는 조성물.
- UBE2C, TOP2A, RRM2, FOXM1, MKI67 및 BTN3A2 유전자의 발현량을 측정하는 제제를 포함하는 유방암 환자의 예후 예측용 키트.
- 제15항에 있어서, 상기 키트는 CTBP1, CUL1 및 UBQLN1 유전자의 발현량을 측정하는 제제를 추가적으로 포함하는 것을 특징으로 하는 키트.
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CN110938698A (zh) * | 2019-12-27 | 2020-03-31 | 南京医科大学 | Sox9在预测三阴性乳腺癌对CDK7抑制剂THZ1敏感性中的应用 |
EP3907301A1 (en) * | 2020-05-08 | 2021-11-10 | Istituto Europeo di Oncologia S.r.l. | Methods and kits for determining the risk of breast cancer recurrence |
CN113355419B (zh) * | 2021-06-28 | 2022-02-18 | 广州中医药大学(广州中医药研究院) | 一种乳腺癌预后风险预测标志组合物及应用 |
KR20230043290A (ko) | 2021-09-23 | 2023-03-31 | 사회복지법인 삼성생명공익재단 | 유방 재건술 예후를 예측하기 위한 정보의 제공 방법 및 시스템 |
CN113981081A (zh) * | 2021-10-22 | 2022-01-28 | 中山大学 | 一种基于rna编辑水平的乳腺癌分子标志物及诊断模型 |
CN113862363A (zh) * | 2021-10-27 | 2021-12-31 | 中山大学附属第一医院 | 免疫相关基因在乳腺癌预后的试剂盒和系统中的应用 |
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