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标题: 以血清HBV RNA指导的治疗策略 [打印本页]

作者: StephenW    时间: 2017-3-17 07:59     标题: 以血清HBV RNA指导的治疗策略

本帖最后由 StephenW 于 2017-3-17 07:59 编辑

Zhonghua Gan Zang Bing Za Zhi. 2017 Feb 20;25(2):105-110. doi: 10.3760/cma.j.issn.1007-3418.2017.02.005.
[The potential use of serum HBV RNA to guide the functional cure of chronic hepatitis B]. [Article in Chinese;  Abstract available in Chinese from the publisher]
Lu FM1, Wang J1, Chen XM1, Jiang JN2, Zhang WH3, Zhao JM4, Ren H5, Hou JL6, Xia NS7.
Author information1Department of Microbiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.2The Fist Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.3Huashan Hospital, Fudan University, Shanghai 200040, China.4302 Military Hospital, Beijing 100039, China.5The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China.6Nanfang Hospital of Southern Medical University, Guangzhou 510515, China.7National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China.

Abstractin                                English, Chinese
在感染肝细胞中的乙型肝炎病毒(HBV)共价闭合环状DNA(cccDNA)是引起停药后病毒学反弹的主要因素。cccDNA的半衰期仅为33~50 d,故新合成的部分双链、松弛环状DNA(rcDNA)进入细胞核转换为cccDNA是维持cccDNA池的关键。虽然不直接靶向cccDNA,但通过阻断rcDNA的合成,现有的核苷(酸)类似物(NAs)存在使cccDNA池耗竭的可能性。确实,慢性乙型肝炎(慢乙肝)患者在抗病毒治疗达到HBeAg血清转换,HBV DNA消失后,再巩固治疗半年以上,20%~30%的患者可以安全停药。我国一些课题组最近已经证实血清中的HBV RNA来自感染肝细胞内cccDNA的活性转录,特别是在接受NAs治疗的慢乙肝患者,DNA合成被阻断后,其血清中的HBV RNA能反映肝细胞内cccDNA的状态。故此建议应将传统的基于病毒DNA检测的病毒学应答重新定义为血清HBV DNA和RNA的共同持续消失(低于检测下限),并以此作为安全停药的病毒学指标。血清HBV RNA是反映肝细胞内cccDNA活性的理想指标,因而,对接受长期NAs治疗后HBsAg水平< 1 500 IU/ml的慢乙肝患者,应依据血清HBV RNA的检测结果,换用或加用聚乙二醇干扰素(peg-IFN)治疗。如果血清HBV RNA阳性,则加用peg-IFN治疗;如果血清HBV RNA消失,应停止NAs治疗,并转为peg-IFN治疗。有理由相信,以血清HBV RNA指导的治疗策略,会进一步优化慢乙肝的功能性治愈(血清HBsAg消失甚至出现抗-HBs转换)路线图。.


KEYWORDS: Antiviral therapy; Functional cure; Hepatitis B, chronic; Safe discontinuation; Serum HBV RNA; cccDNA






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