Distribution of HBV DNA and HBsAg in the liver of patients with liver cirrhosis and its significance

Hepatitis B virus(HBV)DNA and HBsAg were detected in 51 human paraf-fin-embedded sections of liver cirrhosis by the double labelling technique of in situ hybfidiza-tion and PAP method.The results showed that the positive sections were 21(41.2％)for HBVDNA,43(84.3％)for HBsAg and 19(37.3％)for both HBV DNA and HBsAg.HBV DNA-positivegrains were localized predominantly in the cytoplasm of hepatic cells or in both nucleus andcytoplasm,a few only in the nucleus or the inner side of the cell membrane.In active cirrhosisand inactive cirrhosis,the positive rates of HBV DNA were 52.8％ and 13.3％,respectively,andfor both HBV DNA and HBsAg,they were 47.2％ and 13.3％ restively.The positive rate ishigher in active cirrhosis than in inactive cirrhosis(P<0.05).The results further indicated that theinfection of HBV and the existence and persistent action of HBV DNA in the liver tissues areone of the important factors of the development of liver cirrhosis.     

Expression of HBxAg in human chronic hepatitis,cirrhosis and primary hepatic carcinoma and its significance

The specimens of this study were obtained from 110 cases of chronic hepatitis,108cirrhosis and 110 primary hepatic carcinoma(PHC).Formalin-fixed and paraffin-embedded seetions were stained by ABC method forHBxAg,and by PAP method for HRsAg and HBcAgOf the 110 cases of chronic hepatitis,72(65.5％)were positive HBxAg in the liver cells,66(60％)were postitive in HBsAg and 35(31.8％)in HBcAg.Among the 108 eases of drrhosis,84(77.8％)revealed to be HBxAg positive in the liver cells,73(67.6％)were demonstrated to beHBsAg-positive and 18(16.7％)were shown to be HBcAg-positive.Among the 110 eases of pri-mary hepatic carcinoma,64(58.2％)showed HBxAg-positive reaction in cancerous tissues.Therates of positive HRsAg and HBcAg in tumor tissues were 15.5％ and 10.9％,respectively.Six-ty-three(78.8％)of 80 cases of the non-cancerous hepatic tissues displayed HBxAg positivenessand the rates of positive HRsAg and HBcAg in the non-tumor tissues were 47(58.8％)and 21(2.6.3％),respectively.The above-mentioned results sugared that the detection rote of HBxAg inchronic hepatitis,cirrhosis and PHC was higher than that of HBsAg and HBcAg.This studydemonstrates a dose relationship between chronic hepatitis,cirrhosis,PHC and chronic persistentinfection of hepatitis B virus(HBV).Persistent chronic HBV infection plays an important role inthe pathogenesis of chronic hepatitis, cirrhosis and PHC.It is possible that the detection ofHBxAg with anti-HBx could be an additional new diagnostic marker for HBV infection.Howev-er,the role of HBxAg in the pathogenesis of chronic liver diseases needs to be furtherinvestigated.     

Expression of splice variants of CD44 mRNA and its significance in human primary hepatocellular carcinoma.

ＥｘｐｒｅｓｉｏｎｏｆｓｐｌｉｃｅｖａｒｉａｎｔｓｏｆＣＤ４４ｍＲＮＡａｎｄｉｔｓｓｉｇｎｉｆｉｃａｎｃｅｉｎｈｕｍａｎｐｒｉｍａｒｙｈｅｐａｔｏｃｅｌｕｌａｒｃａｒｃｉｎｏｍａＬｉｕＰｅｎｇｆｅｉ刘鹏飞，ＷｕＭｅｎｇｃｈａｏ吴孟超，ＣｈｅｎＨａｎ陈...     

Expression of aspartyl beta-hydroxylase and its clinicopathological significance in hepatocellular carcinoma

The human aspartyl beta-hydroxylase is a highly conserved enzyme that hydroxylates epidermal growth factorlike domains in transformation-associated proteins. The aspartyl beta-hydroxylase gene is upregulated in many human malignancies. The purpose of this study was to investigate the expression of aspartyl beta-hydroxylase in hepatocellular carcinoma. Aspartyl beta-hydroxylase mRNA levels were measured in 161 hepatocellular carcinomas and paired nontumorous liver tissues by conventional and real-time RT-PCR. Immunohistochemical staining of aspartyl beta-hydroxylase was performed using EnVision Plus system. The results showed that aspartyl beta-hydroxylase was overexpressed in 150 of 161 hepatocellular carcinomas （93 %）, including 45 of 48 unifocal small hepatocellular carcinomas （94 % ）. Aspartyl beta-hydroxylase was highly expressed in hepatocellular carcinoma cells in contrast to its low level of expression in non-neoplastic liver cells. The protein expression level of aspartyl heta-hydroxylase in the hepatocellular carcinoma was parallel with the mRNA expression level （r=0. 659 4, P〈 0. 000 1）. A significantly higher tumor aspartyl beta-hydroxylase overexpression level was associated with the presence of intrahepatic metastasis and the progression of histological grades.     

Analysis of nuclear DNA content of cells from liver cell dysplasia and hepatocellular carcinoma

Nuclear DNA content of malignant cells was measured by OPTON III microspectrophotometry in 19 cases of hepatocellular carcinoma (HCC), as well as cells from the paraneoplastic liver tissue. The mean DNA value increased greatly from non-liver cells dysplasia (LCD), LCD to HCC (P<0. 05—0. 01), In histograms, non-LCD hepatocytes showed a single peak type located at 2C. HCC showed lower multiple peaks which migrated to 4C and spread widely with more aneuploid (>5C) cells, This histograms of LCD were between non-LCD and HCC,and there were also some aneuploid cells in LCD. These results indicate that LCD is a group of proliferating cells and those with relatively high ratio of aneuploid cells might be premalignant. Recently, many reports on analysis of nuclear DNA content of esophageal, gastric, nasopharyngeal and lung cancer, as well as cells of precancerous lesions have been published. Most results showed that nuclear DNA content of the conditions above mentioned and their number of chromsome were often alterated. Analysis on nuclear DNA content of hepatocellular carcinoma (HCC) and liver cell dysplasia (LCD) are vary rare. And so far, there have been various considerations on behavor of LCD and its relationship to HCC. We would attempt to further approach biologically nature of LCD and its association with HCC by measuring nuclear DNA content.     

The expression of the products of IGF-Ⅱ,IGF-Ⅱ receptors and CSF-Ⅰ receptors in human primary hepatocellular carcinoma and juxtacancerous liver tissue

The expression of the products of IGF-Ⅱ,IGF-Ⅱ receptors(IGF-Ⅱ-R)and CSF-Ⅰ re-ceptors(CSF-Ⅰ-R)was observed in 17 cases of human primary hepatocellular carcinoma(PHC)and the juxtacancerous liver tissue with immunohistochemistry(ABC),Western blot and North-ern blot technique,It was found that the expression of IGF-Ⅱ,IGF-Ⅱ-R and CSF-Ⅰ-R was signif-icantly higher in PHC than in normal liver tissue and the expression of IGF-Ⅱ and IGF-Ⅱ-R wasremarkably higher in the juxtacancerous liver tissue from PHC patients than in PHC proper.Itwas noteworthy that the expression of IGF-Ⅱ in both the cancer proper and the juxtacancerousliver tissue was characterized by its fetal type.Besides,the expression of CSF-Ⅰ-R was signifi-cantly higher in PHC than in the juxtacancerous liver tissue.It is believed that the abnormal ex-pression of IGF-Ⅱ,IGF-Ⅱ-R and CSF-I-R in PHC and the juxtacaneerous liver tissue might berelated to the autocrine mechanism of human PHC.     

Detection of hepatocellular carcinoma cells in peripheral venous blood and its significance.

ＤｅｔｅｃｔｉｏｎｏｆｈｅｐａｔｏｃｅｌｕｌａｒｃａｒｃｉｎｏｍａｃｅｌｓｉｎｐｅｒｉｐｈｅｒａｌｖｅｎｏｕｓｂｌｏｏｄａｎｄｉｔｓｓｉｇｎｉｆｉｃａｎｃｅＨｕＣｈｅｎｇｊｉｎ胡成进ａｎｄＹａｎｇＤａｏｌｉ杨道理ＤｅｐａｒｔｍｅｎｔｏｆＩｍｍｕｎｏｌ...     

Expression and significance of PTEN and PCNA in human laryngeal squamous cell carcinoma

TumorsuppressedgenePTEN(phosphotaseandten sionhomologdeletedfromchromsome 10 )wasidentifiedbythreedifferentgroupsin 1997 PTENismutatedinsporad icbrain ,breastandprostatecancer.ThenormalexpressionofPTENcansuppresstumorcellsinvading ,metastasisandgrowth.TheabnormalexpressionofPTENwillresultinPTENproteindecreasingordisappearing .Proliferatingcellnuclearantigen (PCNA )isanauxiliaryproteinofDNApolymerase ,whichisexpressedinG1stageofcellcircle ,getstotheclimaxinSstage ,anddecreasesinG2 -…     

Expression and significance of EGFR,C-erbB_2 and PCNA in primary breast carcinoma tissues

Expression and significance of EGFR,C-erbB_2 and PCNA in primary breast carcinoma tissues@孙治君$Dept Gene Surg,1st Affil Hosp Chongqing Med Univ,Chongqing 400016     

人原发性肝细胞癌及肝硬变内HBV DNA及HBAg的分布及意义

为了探讨ＨＢＶ与肝细胞癌的发病的关系，作者应用原位分子杂交，免疫组化及它们的双标记方法在４４例肝癌，１７例癌旁肝组织和４２例肝硬变的石蜡切片中检测了ＨＢＶ ＤＮＡ，ＨＢｘＡｇ。研究结果显示，ＨＢＶ ＤＮＡ，ＨＢｘＡｇ和ＨＢｃＡｇ在肝癌组织中的率分别为７０．５％，６５．９％和２０．５％，而在癌旁肝组织内检出率分别为７６．５％，７６．５％和２９．４％，４２例肝硬变组织中的检出率分别为８８．１％，...     

原发性肝癌内HBV DNA及HBAg的分布与意义

采用原位分子杂交和免疫组化及双标记技术,对44例原发性肝细胞肝癌及痛旁肝组织进行了乙型肝炎病毒DNA及其表达产物x抗原、核心抗原检测。癌组织中HBV DNA、HBxAg、HBcAg检出率分别为70.5％、65.9％及20.5％;癌旁肝组织依次为76.5％、76.5％及29.4％。HBV DNA及HBxAg主要位于肝细胞浆中,在HBcAg阳性组中的检出率高于HBcAg阴性组(P<0.05)。9例枯否氏细胞浆有HBxAg检出。HBVDNA在癌及癌旁组织中的检出有“伴随现象”。HBcAg多位于核内,部分为核浆型,且总是伴随HBV DNA和(或)HBxAe检出,无一例单独检出HBcAg者。此外,HBxAg可由肝内游离型HBV DNA所表达;肝内核型或浆型HBcAg均可反映HBV的复制。因此,肝内HBxAg的检测可作为HBV感染的灵敏指标之一,进一步证实HBV感染与HCC的发生有密切关系。     

肝硬变组织内HBV DNA和HBsAg的分布及意义

作者用原位杂交和免疫组织化学PAP法双标记,在51例人肝硬变石蜡组织切片中检测HBV DNA和HBsAg.共检出HBV DNA 21例(41.2％),HBsAg 43例(84.3％),二者同时检出共19例(37.3％).HBVDNA阳性颗粒主要分布于肝细胞的胞浆或同时分布于胞核及胞浆内,少数仅位于核内或沿胞膜内侧分布.51例肝硬变患者中,活动性肝硬变与静止性肝硬变组织中HBV DNA的阳性检出率分别为52.8％和13.3％,HBV DNA和HBsAg二者均阳性的检出率分别为47.2％和13.3％,均以活动性肝硬变为高(P<0.05).结果说明,HBV的感染以及HBV DNA在肝组织中的存在和持续活动是肝硬变发生发展的重要因素之一.     

HBV DNA载量与肝硬化和原发性肝癌的相关性探究

目的 探讨乙型肝炎病毒(HBV) DNA载量与肝硬化和原发性肝癌的相关性.方法 选择乐山市人民医院2014年3月到2015年3月的住院患者中感染HBV的患者552例,用实时荧光定量PCR检测其入院时的HBV DNA载量,根据临床诊断分别统计阳性组与阴性组中肝硬化和原发性肝癌患者例数.结果 统计显示DNA阳性组345例,DNA阴性组207例,DNA阳性组的肝硬化患病率为44.93％,DNA阴性组的肝硬化患病率为35.75％,差异有统计学意义(P＜0.05).DNA阳性组的原发性肝癌患病率为8.12％,DNA阴性组的原发性肝癌患病率为7,25％,差异无统计学意义(P＞0.05).结论 感染HBV病毒的患者HBV DNA载量与肝硬化的发生有关,与原发性肝癌的关系仍需进一步探讨.     

肝硬化对乙肝相关性肝癌根治术预后的影响

目的 分析肝硬化与乙肝相关性肝癌预后的关系。方法 回顾性分析2005 ～ 2012 年收治的166例乙肝相关肝癌患者,所有患者已行肝切除术。男性134 例,女性32 例;年龄32 ～ 73 岁;其中无肝硬化25例;小结节肝硬化（肝硬化结节≤ 3 mm）61 例;大结节肝硬化（肝硬化结节>3 mm）80 例。比较3 组患者肝切除术后复发率及总生存率。结果 无肝硬化、肝硬化小结节及肝硬化大结节组患者术后复发率及总生存率比较,差异有统计学意义（P <0.05）,无肝硬化组患者术后复发率及总生存率优于肝硬化小结节及大结节组患者。肝硬化小结节组和肝硬化大结节组患者术后复发率及总生存率比较,差异无统计学意义（P >0.05）。结论 乙肝相关性肝癌患者中,无肝硬化肝癌患者肝切除术后复发率及总生存率优于肝硬化的肝癌患者。     

慢性乙型病毒性肝炎肝硬化发生肝细胞癌的危险因素分析

?目的: 探讨慢性乙型病毒性肝炎肝硬化发生肝细胞癌（HCC）的危险因素。方法: 研究对象为317例慢性乙肝患者,包括183例慢乙肝肝硬化患者（肝硬化组）和134例慢乙肝相关HCC患者（HCC组）,对其性别、年龄、吸烟及饮酒习惯、伴发疾病、实验室检查指标等资料进行比较,探讨慢乙肝肝硬化发生HCC的危险因素。结果: HCC组患者男性所占比例、年龄、有长期大量饮酒习惯、血HBV DNA阳性、合并糖尿病（DM）及高血压所占比例均高于肝硬化组,两组比较P均<0.05。Logistic回归分析显示,男性、年龄较大、血HBV DNA阳性、DM是慢乙肝肝硬化患者发生HCC的独立危险因素（OR分别为0.326、1.055、2.988、2.031,P均<0.05）。结论: 男性、年龄升高、血HBV DNA阳性、DM是慢乙肝肝硬化患者发生HCC的独立危险因素。     

Bax和P53蛋白在肝硬变和肝细胞肝癌组织中的表达及其间的关系

检测肝硬变和肝细胞肝癌（HCC）中Bax基因产物及P53蛋白的表达并分析其间的关系．方法：免疫组织化学SABC法．结果：Bax蛋白定位于细胞浆中，P53蛋白定位于细胞核或（和）细胞浆中．Bax蛋白在肝硬变中和HCC中表达阳性率分别为96．2％和50％（P＜0．01），P53蛋白在两者中的表达率分别为3．8％和30．9％（P＜0．01）．Bax和P53蛋白在肝硬变和HCC中的表达均有明显差异．结论：Bax表达减少或缺失和p53基因突变均与HCC的发生有关，但两者表达之间不一定存在依存关系．