KR20120116294A - 만성 b형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법 - Google Patents
만성 b형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법 Download PDFInfo
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Abstract
Description
도 2는 간세포암 환자와 간세포암이 아닌 HBV 감염 환자에서의 각 돌연변이 조합의 패턴을 돌연변이의 누적 개수에 따라 분류한 그래프이다. 도 2에 도시된 바와 같이, 돌연변이의 누적 개수와 간세포암 발병 사이에 선형관계(linear dose-risk relationship)가 있고 간세포암 특이적 돌연변이 조합 패턴에서 간세포암 발병이 증가함을 확인할 수 있다.
도 3는 간세포암 환자와 간세포암이 아닌 HBV 감염 환자에서의 각 돌연변이 조합의 패턴을 간세포암 특이적 돌연변이 조합 패턴의 순위에 따라 나눈 그래프이다. 도 3에 도시된 바와 같이, 간세포암 특이적인 돌연변이 조합 패턴 상위 7개에서 간세포암의 대부분을 차지하는 것을 확인할 수가 있다.
Claims (8)
- (a) 만성 B형 간질환 환자군과 만성 B형 간질환으로부터 간세포암으로 진행된 환자군 사이에서, 간세포암 종속변수인 발병/비발병과 독립변수인 HBV 유전자 상의 돌연변이 각각 또는 돌연변이 조합들과의 관계를 분석하는 단계와,
(b) 상기 (a) 단계의 분석을 통해 도출된 종속변수인 간세포암 발병/비발병과 독립변수인 HBV 유전자 상의 돌연변이와의 관계를 이용하여, 만성 B형 간질환 환자군과 만성 B형 간질환으로부터 간세포암으로 진행된 환자군 사이에서 통계학적으로 유의적인 차이를 보이는 돌연변이가 나타나는 간세포암 예측용 마커들인 G1613A, C1653T, T1753V("V"는 염기 A, C, G를 의미함), A1762T, G1764A, A1846B("B"는 염기 C, G, T를 의미함), G1896A 및 G1899A 마커들을 선정하는 단계와,
(c) 상기 (b) 단계에서 선정된 G1613A, C1653T, T1753V("V"는 염기 A, C, G를 의미함), A1762T, G1764A, A1846B("B"는 염기 C, G, T를 의미함), G1896A 및 G1899A의 총 8개의 간세포암 예측용 마커들로부터 가능한 모든 돌연변이 조합인 28 = 256개의 돌연변이 조합 중 간세포암 환자에게서 특이적으로 확인되는 돌연변이 조합을 결정하는 단계와,
(d) 만성 B형 간질환 환자에서 채취한 시료로부터 B형 간염 바이러스(HBV)의 유전자형을 분석하고, 분석된 유전자형으로부터 상기 선정된 G1613A, C1653T, T1753V("V"는 염기 A, C, G를 의미함), A1762T, G1764A, A1846B("B"는 염기 C, G, T를 의미함), G1896A 및 G1899A의 총 8개의 간세포암 예측용 마커들의 돌연변이들의 유무를 판단하는 단계와,
(e) 상기 (d) 단계에서의 돌연변이들의 유무 판단 후, 돌연변이가 나타난 마커들의 조합이 상기 (c) 단계에서 결정된 간세포암 환자에게서 특이적으로 확인되는 돌연변이 조합에 해당하는 경우 간세포암 발병 고위험군으로 결정하는 단계를 포함하는 만성 B형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법. - 제1항에 있어서,
상기 간세포암 환자에게서 특이적으로 확인되는 돌연변이 조합은, "G1613A, C1653T, T1753V, A1762T, G1764A, A1846B 및 G1896A"의 제1 돌연변이 조합, "T1753V, A1762T, G1764A 및 G1896A"의 제2 돌연변이 조합, "G1613A, C1653T, T1753V, A1762T, G1764A, A1846B, G1896A 및 G1899A"의 제3 돌연변이 조합, "G1613A, C1653T, A1762T, G1764A, A1846B, G1896A 및 G1899A"의 제4 돌연변이 조합, "G1613A, C1653T, A1762T, G1764A, A1846B 및 G1896A"의 제5 돌연변이 조합, "G1613A, C1653T, A1762T, G1764A, A1846B 및 G1899A"의 제6 돌연변이 조합, 또는 "C1653T, T1753V, A1762T, G1764A 및 G1896A"의 제7 돌연변이 조합인 것을 특징으로 하는 만성 B형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법. - (a) 만성 B형 간질환 환자군과 만성 B형 간질환으로부터 간세포암으로 진행된 환자군 사이에서, 종속변수인 간세포암 발병/비발병과 독립변수인 HBV 유전자 상의 돌연변이의 관계를 분석하는 단계와,
(b) 상기 (a) 단계의 분석을 통해 도출된 종속변수인 간세포암 발병/비발병과 독립변수인 HBV 유전자 상의 돌연변이와의 관계를 이용하여, 만성 B형 간질환 환자군과 만성 B형 간질환으로부터 간세포암으로 진행된 환자군 사이에서 통계학적으로 유의적인 차이를 보이는 돌연변이가 나타나는 간세포암 예측용 마커들을 선정하는 단계와,
(c) 만성 B형 간질환 환자에서 채취한 시료로부터 B형 간염 바이러스(HBV)의 유전자형을 분석하고, 분석된 유전자형으로부터 상기 선정된 간세포암 예측용 마커들의 돌연변이들의 유무를 판단하는 단계와,
(d) 상기 (c) 단계에서의 돌연변이들의 유무 판단 후, 상기 선정된 간세포암 예측용 마커들에 있어서 돌연변이가 나타난 마커들의 총 개수를 계수하고, 돌연변이 누적 개수가 미리 결정된 컷 오프값 이상인 경우 간세포암 발병 고위험군으로 결정하는 단계를 포함하는 만성 B형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법. - 제3항에 있어서,
상기 (a) 단계에서 간세포암 종속변수인 발병/비발병과 독립변수인 HBV 유전자 상의 돌연변이들 전체 또는 돌연변이 조합들과의 관계를 분석하는 단계를 더 포함하는 만성 B형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법. - 제3항 또는 제4항에 있어서,
상기 선정된 간세포암 예측용 마커들은 HBV의 X 유전자 및 프리코어/코어 유전자 상의 G1613A, C1653T, T1753V("V"는 염기 A, C, G를 의미함), A1762T, G1764A, A1846B("B"는 염기 C, G, T를 의미함), G1896A 및 G1899A의 총 8개의 간세포암 예측용 마커들인 것을 특징으로 하는 만성 B형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법. - 제5항에 있어서,
상기 컷 오프값은 3개 내지 6개인 것을 특징으로 하는 만성 B형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법. - 제6항에 있어서,
상기 컷 오프값은 6개인 것을 특징으로 하는 만성 B형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법. - 제3항 또는 제4항에 있어서,
상기 컷 오프값이 6개이고 돌연변이 누적 개수가 6개 미만인 경우라도 "T1753V, A1762T, G1764A 및 G1896A"의 간세포암 예측용 마커들에 돌연변이가 발생하거나, "C1653T, T1753V, A1762T, G1764A 및 G1896A"의 간세포암 예측용 마커들에 돌연변이가 발생한 경우에는 간세포암 발병 고위험군으로 결정하는 것을 특징으로 하는 만성 B형 간질환 환자의 간세포암 발병 위험도 분석 및 예측방법.
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