In vitro inhibition of feline coronavirus replication by small interfering RNAs.
In vitro inhibition of feline coronavirus replication by small interfering RNAs.
复制标题
DOI:
10.1016/j.vetmic.2011.01.023
复制
发表时间:
2011-06-02
影响因子:
3.3
通讯作者:
Norris JM
中科院分区:
文献类型:
--
作者:
McDonagh P;Sheehy PA;Norris JM
Infection with virulent biotypes of feline coronavirus (FCoV) can result in the development of feline infectious peritonitis (FIP), a typically fatal immune mediated disease for which there is currently no effective antiviral treatment. In this study we demonstrate the ability of small interfering RNA (siRNA) mediated RNA interference (RNAi) to inhibit the replication of virulent FCoV strain FIPV WSU 79-1146 in an immortalised feline cell line. A panel of eight synthetic siRNAs targeting four different regions of the FCoV genome were tested for antiviral effects. Efficacy was determined by qRT-PCR of intracellular viral genomic and messenger RNA, TCID50 infectivity assay of extracellular virus, and direct IFA for viral protein expression. All siRNAs demonstrated an inhibitory effect on viral replication in vitro. The two most effective siRNAs, targeting the untranslated 5′ leader sequence (L2) and the nucleocapsid gene (N1), resulted in a >95% reduction in extracellular viral titre. Further characterisation of these two siRNAs demonstrated their efficacy when used at low concentrations and in cells challenged with high viral loads. Taken together these findings provide important information for the potential therapeutic application of RNAi in treating FIP.
登录
查看更多内容
影响因子:
3.5
作者:
He ML;Zheng BJ;Chen Y;Wong KL;Huang JD;Lin MC;Peng Y;Yuen KY;Sung JJ;Kung HF
通讯作者:
Kung HF
影响因子:
5.1
作者:
Li T;Zhang Y;Fu L;Yu C;Li X;Li Y;Zhang X;Rong Z;Wang Y;Ning H;Liang R;Chen W;Babiuk LA;Chang Z
通讯作者:
Chang Z
影响因子:
11.8
作者:
Brown, Meredith A.;Troyer, Jennifer L.;O'Brien, Stephen J.
通讯作者:
O'Brien, Stephen J.
影响因子:
--
作者:
Masters PS
通讯作者:
Masters PS
影响因子:
1.7
作者:
Holst, BS;Englund, L;T Berndtsson, L
通讯作者:
T Berndtsson, L