Identification of a class of HCV inhibitors directed against the nonstructural protein NS4B.

Identification of a class of HCV inhibitors directed against the nonstructural protein NS4B.
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DOI:
10.1126/scitranslmed.3000331
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发表时间:
2010-01-20
影响因子:
17.1
通讯作者:
Glenn JS
Glenn JS
中科院分区:
医学1区
文献类型:
--
作者:
Cho NJ;Dvory-Sobol H;Lee C;Cho SJ;Bryson P;Masek M;Elazar M;Frank CW;Glenn JS

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需要新的药物来对抗丙型肝炎病毒(HCV),这是世界范围内肝脏疾病的重要原因。我们描述了一个关键结构域的活动,我们称之为4BAH2的两亲性螺旋,在一个特定的HCV非结构蛋白,NS4B。除了其在病毒复制中的作用外,我们还验证了4BAH2对HCV基因组复制至关重要,并确定了第一代4BAH2小分子抑制剂,可特异性阻止细胞内HCV复制。详细的机制研究表明,抑制剂通过阻止4BAH2寡聚化或4BAH2膜缔合来靶向4BAH2功能。4BAH2抑制剂代表了另一类令人兴奋的化合物,具有有效治疗HCV的潜力。
New classes of drugs are needed to combat hepatitis C virus (HCV), an important worldwide cause of liver disease. We describe an activity of a key domain, an amphipathic helix we termed 4BAH2, within a specific HCV nonstructural protein, NS4B. In addition to its proposed role in viral replication, we validate 4BAH2 as essential for HCV genome replication, and identify first generation small molecule inhibitors of 4BAH2 that specifically prevent HCV replication within cells. Detailed mechanistic studies reveal that the inhibitors target 4BAH2 function by either preventing 4BAH2 oligomerization or 4BAH2 membrane association. 4BAH2 inhibitors represent an exciting, additional class of compounds that has potential to effectively treat HCV.
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