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Virologica Sinica, 28 (6) : 345-351, 2013
Research
PNKP Knockdown by RNA Interference Inhibits Herpes Simplex Virus-1 Replication in Astrocytes
1. Institute of Medical Biology, Chinese Academy of Medicine Science & Peking Union Medical College, Kunming 650118, China

2. The Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China
 Correspondence: imbcams.lq@gmail.com
(420.50KB)  
Abstract
Herpes simplex virus-1 (HSV-1) is a major pathogen that causes various central nervous system (CNS) diseases, including herpes simplex encephalitis and meningitis. According to recent studies, PNKP significantly affects the proliferation of HSV-1 in astrocytes. Here, we used viral proliferation curves to confirm the significant inhibitory effects of PNKP on HSV-1 proliferation. PNKP downregulation was also confirmed by analyzing the transcription of viral genes. We found that PNKP downregulation affects the viral DNA copy number. This study preliminarily confirms that PNKP affects viral proliferation by affecting HSV-1 genome cyclization. These results also suggest that astrocytes play a specific role in preventing HSV-1 infection.
Received: 6 Nov 2013  Accepted: 13 Jun 2013  Published online: 3 Dec 2013
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