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Inter-alpha-trypsin inhibitor heavy chain H4 as a diagnostic and prognostic indicator in patients with hepatitis B virus-associated hepatocellular carcinoma

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dc.contributor.advisor정, 재연-
dc.contributor.author노, 충균-
dc.date.accessioned2014-11-14T01:19:16Z-
dc.date.available2014-11-14T01:19:16Z-
dc.date.issued2014-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/10923-
dc.description.abstractOBJECTIVES: Inter-alpha-trypsin inhibitor heavy chain H4 (ITIH4) is associated with various diseases. We evaluated the diagnostic and prognostic significance of serum ITIH4 levels in healthy controls and patients with chronic hepatitis B (CHB), hepatitis B virus (HBV)-related liver cirrhosis, and HBV-related hepatocellular carcinoma (HCC).
DESIGN AND METHODS: The study enrolled 300 individuals (50 healthy controls, 50 with CHB, 100 with HBV-associated cirrhosis, and 100 with HBV-associated HCC). Serum ITIH4 levels were determined by western blot analysis and expressed in densitometry units (DU).
RESULTS: ITIH4 levels were higher in CHB (mean: 252.96 DU) and liver cirrhosis (mean: 206.43 DU) patients than in healthy controls (mean: 75.92 DU) and HCC patients (mean: 92.86 DU) (P <0.001). The area under the receiver operating characteristic curve was 0.71 for the diagnosis of HCC in patients with HBV-related liver disease. Multivariate Cox regression analysis showed that large tumor size (>5 cm) was independently associated with overall survival (hazard ratio 5.894, 95% confidence interval 1.373–25.300, P = 0.017). A Kaplan-Meier survival analysis showed significantly worse survival among HCC patients with both low ITIH4 (<80 DU) and a large tumor size compared to that among other HCC patients (P <0.001), and among patients with high AFP (>200 ng/mL) and low ITIH4 compared to that among other HCC patients (P = 0.041).
CONCLUSIONS: Serum ITIH4 levels are reduced in HCC patients compared to that in CHB and cirrhosis patients, and low serum ITIH4 levels are associated with shorter survival in HBVassociated HCC patients.
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dc.description.abstract목적: Inter-alpha-trypsin inhibitor heavy chain H4 (ITIH4)은 다양한 질환들과 관련이 있다. 본 연구에서는 정상 대조 군과 만성 B 형간염, B 형간염 연관 간 경변 증, B 형간염 연관 간암 환자들에서 ITIH4 의 진단적, 예후예측 인자로서의 중요성을 평가하였다.
방법: 300 명의 환자들을 대상으로 연구를 진행하였다 (50 명의 정상 대조군, 50 명의 만성 B 형간염, 100 명의 B 형간염 연관 간 경변 증, 100 명의 B 형간염 연관 간암). 혈청 ITIH4 값을 Western blot 분석으로 결정하였고, densitometry units(DU) 으로 나타내었다.
결과: ITIH4 는 만성 B 형간염 (평균: 252.96 DU)과 간 경변 증 (평균: 206.43 DU)에서 정상 대조군 (평균: 75.92 DU), 간암 환자군 (평균: 92.86 DU) 보다 더 높게 나타났다 (P<0.001). B 형간염 연관 간 질환 환자에서 간암 진단을 위한 AUROC 값은 0.71 이었다. 다변량 Cox 회귀 분석을 통해 큰 종양 크기 (>5 cm)가 독립적으로 생존율에 연관이 있음을 확인하였다 (위험도 5.894, 95% 신뢰구간 1.373–25.300, P = 0.017). Kaplan-Meier 생존 분석을 진행 하였을 때, 낮은 ITIH4 값 (<80 DU)과 큰 종양크기 (>5 cm)를 모두 충족시키는 환자들이 그렇지 않은 환자들 보다 유의하게 낮은 생존율을 보였다. 그리고, 높은 AFP 값 (>200 ng/mL)과, 낮은 ITIH4 값 (<80 DU)을 모두 충족 시키는 환자들이 그렇지 않은 환자들보다 낮은 생존율을 보였다 (P = 0.041).
결론: 혈청 ITIH4 값은 만성 B 형간염, 간 경변 증 환자들과 비교하여 간암 환자들에서 감소하는 결과를 보였고, 낮은 혈청 ITIH4 값은 B 형 간염 연관 간암 환자들에서 나쁜 생존율과 관련이 있음을 확인 하였다.
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dc.description.tableofcontentsABSTRACT ⅰ

TABLE OF CONTENTS iii

LIST OF FIGURES iv

LIST OF TABLES v

Ⅰ. INTRODUCTION 1

Ⅱ. PATIENTS AND METHODS 3

A. Patients and serum samples 3

B. Western blot analysis 3

C. Statistical analysis 4

Ⅲ. RESULTS 5

A. Selection of candidate biomarker for HBV-associated HCC 5

B. Diagnostic value of ITIH4 for the detection of HCC 6

C. Identification of factors that predict survival in patients with HCC 7

D. Prognostic significance of ITIH4 in patients with HCC 8

Ⅳ. DISCUSSION 13

Ⅴ. CONCLUSION 16

REFERENCES 17

국문요약 20
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dc.language.isoen-
dc.titleInter-alpha-trypsin inhibitor heavy chain H4 as a diagnostic and prognostic indicator in patients with hepatitis B virus-associated hepatocellular carcinoma-
dc.title.alternativeB형 간염 관련 간암 환자에서 진단 및 예후 예측 인자로서 Inter-alpha-trypsin inhibitor heavy chain H4에 대한 연구-
dc.typeThesis-
dc.identifier.urlhttp://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000017916-
dc.subject.keywordInter-alpha-trypsin inhibitor heavy chain H4-
dc.subject.keywordhepatitis B-
dc.subject.keywordhepatocellular carcinoma-
dc.subject.keywordsurvival-
dc.subject.keyworddiagnosis-
dc.subject.keywordB형간염-
dc.subject.keyword간암-
dc.subject.keyword예후-
dc.subject.keyword진단-
dc.description.degreeMaster-
dc.contributor.department대학원 의학과-
dc.contributor.affiliatedAuthor노, 충균-
dc.date.awarded2014-
dc.type.localTheses-
dc.citation.date2014-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
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Theses > School of Medicine / Graduate School of Medicine > Master
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