| Analysis of the Effect of Sphingomyelinase on Rubella Virus Infectivity in Two Cell Lines
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Author:
Date:
2018-09-05
[Abstract] Rubella is a mildly contagious disease characterized by low-grade fever and a morbilliform rash caused by the rubella virus (RuV). Viruses often use cellular phospholipids for infection. We studied the roles of cellular sphingomyelin in RuV infection. Treatment of cells with sphingomyelinase (SMase) inhibited RuV infection in rabbit kidney-derived RK13 cells and African green monkey (Cercopithecus aethiops) kidney-derived Vero cells. Our data further demonstrated that RuV used cellular sphingomyelin and cholesterol for its binding to cells and membrane fusion at the step of virus entry. Detailed protocols of our assays, which assess the effects of SMase treatment on RuV infectivity in RK13 and Vero cells, are described.
[摘要] 风疹是一种轻度传染性疾病，其特征是低风热和由风疹病毒（RuV）引起的麻疹样皮疹。 病毒通常使用细胞磷脂进行感染。 我们研究了细胞鞘磷脂在RuV感染中的作用。 用鞘磷脂酶（SMase）处理细胞抑制兔肾衍生的RK13细胞和非洲绿猴（ Cercopithecus aethiops ）肾源性Vero细胞中的RuV感染。 我们的数据进一步证明RuV在病毒进入的步骤中使用细胞鞘磷脂和胆固醇来结合细胞和膜融合。 描述了我们的测定的详细方案，其评估了SMase处理对RK13和Vero细胞中RuV感染性的影响。
【背景】风疹病毒（RuV）是一种正链RNA病毒，属于 Togaviridae 家族中的 Rubivirus 属。该家族有两个属， Rubivirus 和 Alphavirus 。风疹病毒是属的鞋底构件的风疹病毒，而许多病毒，例如塞姆利基森林病毒（SFV）和辛德毕斯病毒（SINV），是归类于甲病毒属。 RuV是风疹和先天性风疹综合征（CRS）的致病因子。风疹的特征是低烧，麻疹样皮疹和淋巴结肿大。它通常是一种轻微的疾病。然而，CRS是一种严重的疾病。 CRS导致在怀孕早期患有风疹的母亲所生的新生儿出现多器官缺陷。白内障，感音神经性听力损失和心血管缺陷在CRS中很常见。
以前的研究表明，细胞膜脂质作为RuV感染的结合或进入因子（Mastromarino ...
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| Luminescence-based Antiviral Assay for Hepatitis E Virus
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Author:
Date:
2014-08-05
[Abstract] Hepatitis E virus (HEV) is one of the main causes of acute hepatitis worldwide. Infections are particularly severe in pregnant women and chronic hepatitis E is known to occur in immunocompromised patients. Current therapy (ribavirin or pegylated alpha interferon) has severe side effects and cannot be employed in all patients. In order to evaluate potential new inhibitors of HEV replication, a luminescence-based replicon assay is particularly useful since it offers a rapid read-out and does not pose any biosafety risks (Debing et al., 2014).
[摘要] 戊型肝炎病毒（HEV）是全世界急性肝炎的主要原因之一。 感染在孕妇中特别严重，已知慢性戊型肝炎发生在免疫受损的患者中。 目前的治疗（利巴韦林或聚乙二醇化α干扰素）具有严重的副作用，不能用于所有患者。 为了评价潜在的新的HEV复制抑制剂，基于发光的复制子测定法是特别有用的，因为其提供了快速读出，并且不会引起任何生物安全风险（Debing等人，2014） 。
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