目的探讨亚甲蓝处理HBV血浆前S 2抗原(HBV Pre S2-Ag)与其DNA降解的关系。方法将乙肝表面抗原和前S2抗原均阳性的血浆,分为未处理组,亚甲蓝处理0、5、10、20、35 min,共6组,每组20 m L。ELISA检测处理前后pres2蛋白变化;设计多对引物,...目的探讨亚甲蓝处理HBV血浆前S 2抗原(HBV Pre S2-Ag)与其DNA降解的关系。方法将乙肝表面抗原和前S2抗原均阳性的血浆,分为未处理组,亚甲蓝处理0、5、10、20、35 min,共6组,每组20 m L。ELISA检测处理前后pres2蛋白变化;设计多对引物,含重叠区,检测pres2基因DNA完整性。结果亚甲蓝能降解DNA序列,并且呈现区域特异性。结论亚甲蓝在基因水平灭活病毒,并且呈现核酸序列特异性,对pres2蛋白含量没有影响。运用核酸检测技术,对评价血浆HBVpres2基因病毒灭活效果的有一定的意义。展开更多
The expressions of HBV X gene and ets-2, IGF-I, c-myc and N-ras were studied in 7 pairs of human primary hepatocellular carcinoma (PHC) and tumor-adjacent tissues, using RNA hybridization and im-munoblot methods. The ...The expressions of HBV X gene and ets-2, IGF-I, c-myc and N-ras were studied in 7 pairs of human primary hepatocellular carcinoma (PHC) and tumor-adjacent tissues, using RNA hybridization and im-munoblot methods. The results showed that specific 17 and 28 kD HBV X gene products (HBxAg) were existed in a portion of PHC and tumor-adjacent tissues. The 17 kD HBxAg was detected in the sera of 3 patients who also had 17 kD HBxAg in their liver tissues. Multiple expressions of oncogenes such as ets-2, c-myc and N-ras were observed in PHC and tumor-adjacent tissues that had HBxAg expressed, indicating HBxAg might function as a transactivator in the course of intracellular proto-oncogene activation. It is also observed that in some tumor-adjacnet tissues the expressions of ets-2, c-myc and N-ras were higher than those in corresponding PHC. The relationship of HBxAg to the expression of est-2, IGF-Ⅱ, c-myc and their possible roles in the carcinogenesis of PHC are discussed.展开更多
文摘目的探讨亚甲蓝处理HBV血浆前S 2抗原(HBV Pre S2-Ag)与其DNA降解的关系。方法将乙肝表面抗原和前S2抗原均阳性的血浆,分为未处理组,亚甲蓝处理0、5、10、20、35 min,共6组,每组20 m L。ELISA检测处理前后pres2蛋白变化;设计多对引物,含重叠区,检测pres2基因DNA完整性。结果亚甲蓝能降解DNA序列,并且呈现区域特异性。结论亚甲蓝在基因水平灭活病毒,并且呈现核酸序列特异性,对pres2蛋白含量没有影响。运用核酸检测技术,对评价血浆HBVpres2基因病毒灭活效果的有一定的意义。
文摘The expressions of HBV X gene and ets-2, IGF-I, c-myc and N-ras were studied in 7 pairs of human primary hepatocellular carcinoma (PHC) and tumor-adjacent tissues, using RNA hybridization and im-munoblot methods. The results showed that specific 17 and 28 kD HBV X gene products (HBxAg) were existed in a portion of PHC and tumor-adjacent tissues. The 17 kD HBxAg was detected in the sera of 3 patients who also had 17 kD HBxAg in their liver tissues. Multiple expressions of oncogenes such as ets-2, c-myc and N-ras were observed in PHC and tumor-adjacent tissues that had HBxAg expressed, indicating HBxAg might function as a transactivator in the course of intracellular proto-oncogene activation. It is also observed that in some tumor-adjacnet tissues the expressions of ets-2, c-myc and N-ras were higher than those in corresponding PHC. The relationship of HBxAg to the expression of est-2, IGF-Ⅱ, c-myc and their possible roles in the carcinogenesis of PHC are discussed.
