Objective:To study the clinical value of hepatitis B virus pregenomic RNA(HBV-pgRNA)detection in the treatment of hepatitis B.Methods:60 patients with hepatitis B were included in the study.Serum HBV-pgRNA and HBV DNA...Objective:To study the clinical value of hepatitis B virus pregenomic RNA(HBV-pgRNA)detection in the treatment of hepatitis B.Methods:60 patients with hepatitis B were included in the study.Serum HBV-pgRNA and HBV DNA levels in different phases of infection and during treatment were detected,and serum hepatitis B surface antigen(HbsAg)titer was detected by chemiluminescent immunoassay.DNA was extracted from liver biopsy tissue,and covalently closed circular DNA was detected to predict the therapeutic value in patients.Results:At the initial stage of treatment,the level of HBV-pgRNA in phase I,II,III,and IV showed a gradual decrease.Comparing the levels of HBV-pgRNA before and after treatment,we found that the level of HBV-pgRNA was significantly lower after treatment(P<0.05).Among the indicators for predicting HBsAg seroconversion,the accuracy of HBV-pgRNA level was 85.0%(51/60).Conclusion:The clinical value of HBV-pgRNA detection in the treatment of hepatitis B is high.展开更多
目前,临床上治疗乙型肝炎病毒(Hepatitis B virus,HBV)导致的慢性乙肝药物存在应答率低、副作用大和耐药性等缺点,急需寻找抗病毒治疗的新靶点。HBV反转录过程中,反转录酶(P蛋白)和位于病毒前基因组RNA(Pregenome RNA,pgRNA)5′邻近的RN...目前,临床上治疗乙型肝炎病毒(Hepatitis B virus,HBV)导致的慢性乙肝药物存在应答率低、副作用大和耐药性等缺点,急需寻找抗病毒治疗的新靶点。HBV反转录过程中,反转录酶(P蛋白)和位于病毒前基因组RNA(Pregenome RNA,pgRNA)5′邻近的RNA包装信号(ε)的相互作用(又称P-ε相互作用)非常关键,该相互作用有宿主蛋白如热激蛋白的参与。P-ε复合物形成后,一方面引发反转录的启动,另一方面启动核衣壳的包装。目前封闭P-ε相互作用的策略主要有热激蛋白抑制剂、ε适配子和阻断P蛋白的化合物三个方面,其机制为针对性靶向P蛋白或者宿主蛋白,从而直接或间接地阻断P-ε相互作用。前期,我们首次体外筛选到干扰P-ε相互作用的适配子,体外实验及动物实验均证实,该类适配子强烈抑制HBV复制。总之,P-ε相互作用为抗乙肝研究的临床治疗提供了一个极具吸引力和应用前景的药物靶点,上述三种策略绕过或克服了目前临床上HBV对化疗药的耐药问题,具有较高的应用前景。展开更多
基金supported by the grant from SPPH Foundation for Development of Science and Technology(2021BJ-26)International Science and Technology Cooperation Projects of Shaanxi Province(2022KW-14).
文摘Objective:To study the clinical value of hepatitis B virus pregenomic RNA(HBV-pgRNA)detection in the treatment of hepatitis B.Methods:60 patients with hepatitis B were included in the study.Serum HBV-pgRNA and HBV DNA levels in different phases of infection and during treatment were detected,and serum hepatitis B surface antigen(HbsAg)titer was detected by chemiluminescent immunoassay.DNA was extracted from liver biopsy tissue,and covalently closed circular DNA was detected to predict the therapeutic value in patients.Results:At the initial stage of treatment,the level of HBV-pgRNA in phase I,II,III,and IV showed a gradual decrease.Comparing the levels of HBV-pgRNA before and after treatment,we found that the level of HBV-pgRNA was significantly lower after treatment(P<0.05).Among the indicators for predicting HBsAg seroconversion,the accuracy of HBV-pgRNA level was 85.0%(51/60).Conclusion:The clinical value of HBV-pgRNA detection in the treatment of hepatitis B is high.
文摘目前,临床上治疗乙型肝炎病毒(Hepatitis B virus,HBV)导致的慢性乙肝药物存在应答率低、副作用大和耐药性等缺点,急需寻找抗病毒治疗的新靶点。HBV反转录过程中,反转录酶(P蛋白)和位于病毒前基因组RNA(Pregenome RNA,pgRNA)5′邻近的RNA包装信号(ε)的相互作用(又称P-ε相互作用)非常关键,该相互作用有宿主蛋白如热激蛋白的参与。P-ε复合物形成后,一方面引发反转录的启动,另一方面启动核衣壳的包装。目前封闭P-ε相互作用的策略主要有热激蛋白抑制剂、ε适配子和阻断P蛋白的化合物三个方面,其机制为针对性靶向P蛋白或者宿主蛋白,从而直接或间接地阻断P-ε相互作用。前期,我们首次体外筛选到干扰P-ε相互作用的适配子,体外实验及动物实验均证实,该类适配子强烈抑制HBV复制。总之,P-ε相互作用为抗乙肝研究的临床治疗提供了一个极具吸引力和应用前景的药物靶点,上述三种策略绕过或克服了目前临床上HBV对化疗药的耐药问题,具有较高的应用前景。
