Abstract:
:RNA interference, mediated by short interfering RNAs (siRNAs), has been shown to have activity against a wide range of viruses and is a promising new antiviral therapy. Using multiple siRNAs that target conserved areas of the genome allows for increased chances of antiviral activity against different viral strains and also helps to prevent the emergence of escape mutants. In this study, four siRNAs were designed to target areas of conserved sequence between divergent strains of Venezuelan equine encephalitis virus (VEEV). A pool of these siRNAs inhibited the replication of all six strains of VEEV tested. A single nucleotide mismatch at the extreme 3' end of one of the siRNA sense strands did not affect antiviral activity but other mutations were not tolerated. Two strains of VEEV were tested for their abilities to overcome the inhibitory effects of RNA interference following 10 consecutive incubations in the presence of siRNAs. One strain remained susceptible throughout the course of the experiment but the other strain became resistant to the activity of siRNAs. Sequence analysis of the siRNA target sites in this strain showed that no mutations had been generated, indicating that the virus may had become resistant in some other manner. In the absence of effective antiviral drugs and vaccines to combat VEEV infection, these siRNAs offer a potential new therapeutic approach but, as with all antimicrobial agents, caution needs to be exercised with respect to the generation of resistance.
journal_name
Antiviral Resjournal_title
Antiviral researchauthors
O'Brien Ldoi
10.1016/j.antiviral.2006.11.007subject
Has Abstractpub_date
2007-07-01 00:00:00pages
20-9issue
1eissn
0166-3542issn
1872-9096pii
S0166-3542(06)00347-0journal_volume
75pub_type
杂志文章abstract::Studying the biogenesis of hepatitis B virus (HBV) covalently closed circular DNA (cccDNA) and developing anti-HBV agents require analytical methods to quantify viral DNA levels inside host cells. The well-accepted Southern blotting method is only semi-quantitative, while the other widely used methods (based on qPCR) ...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2019.06.002
更新日期:2019-08-01 00:00:00
abstract::(S)-1-(3-hydroxy-2-phosphonylmethoxypropyl)cytosine, HPMPC, and two HPMPC-related nucleoside analogs, (S)-9-(3-hydroxy-2-phosphonylmethoxypropyl)adenine, HPMPA, and (2-phosphonylmethoxyethyl)guanine, PMEG, were evaluated for their antiviral activities against guinea pig cytomegalovirus (GPCMV) infection in guinea pig ...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/0166-3542(90)90069-j
更新日期:1990-05-01 00:00:00
abstract::The anti-human cytomegalovirus (HCMV) activity of tricin (4',5,7-trihydroxy-3',5'-dimethoxyflavone), a derivative from Sasa albo-marginata, was studied in the human embryonic fibroblast cell line MRC-5. In a plaque assay, tricin and ganciclovir (GCV) showed concentration-dependent inhibitory properties from 0.05 to 3....
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2011.06.014
更新日期:2011-09-01 00:00:00
abstract::Isoborneol, a monoterpene and a component of several plant essential oils, showed dual viricidal activity against herpes simplex virus 1 (HSV-1). First, it inactivated HSV-1 by almost 4 log10 values within 30 min of exposure, and second, isoborneol at a concentration of 0.06% completely inhibited viral replication, wi...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/s0166-3542(99)00036-4
更新日期:1999-09-01 00:00:00
abstract::Infections by dengue virus (DENV) are increasing worldwide, with an urgent need for effective anti-DENV agents. We recently identified N-(4-hydroxyphenyl) retinamide (4-HPR), an anti-DENV agent effective against all 4 serotypes of DENV in cell culture, and in a lethal mouse model for DENV infection (Fraser et al., 201...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2016.03.006
更新日期:2016-06-01 00:00:00
abstract::The outbreak of severe acute respiratory syndrome (SARS) in 2003 was the first emergence of an important human pathogen in the 21st century. Responding to the epidemic provided clinicians with extensive experience in diagnosing and treating a novel respiratory viral disease. In this article, we review the experience o...
journal_title:Antiviral research
pub_type: 杂志文章,评审
doi:10.1016/j.antiviral.2013.08.016
更新日期:2013-11-01 00:00:00
abstract::Hepatitis B virus (HBV) infection remains a global health problem, causing nearly one million deaths annually. Forkhead box O (FoxO) transcription factors play important roles in modulating diverse physiological processes. Recent studies show that FoxOs are involved in antiviral responses. In present investigation, we...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2019.104568
更新日期:2019-10-01 00:00:00
abstract::Dextran sulfate (DS) is a negatively charged sulfated polysaccharide that suppresses the replication of influenza A viruses. The suppression was thought to be associated with inhibition of the hemagglutinin-dependent fusion activity. However, we previously showed that suppression by DS was observed not only at the ini...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2014.09.002
更新日期:2014-11-01 00:00:00
abstract::Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiologic agent of Kaposi's sarcoma, primary effusion lymphoma, and multicentric Castleman's disease. In immunocompromised patients, KSHV infection is capable of causing severe and fatal diseases. Current antiviral treatments for KSHV infections consist mostly of n...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2020.104825
更新日期:2020-08-01 00:00:00
abstract::The acyclic analogue of guanosine acyclovir (ACV) constitutes the first-line drug for the treatment of herpes simplex virus (HSV) infections. ACV activation requires primophosphorylation by virus-encoded HSV thymidine kinase (TK). In 95% of cases, HSV resistance to ACV is associated with mutations located in TK. The a...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2012.09.016
更新日期:2012-12-01 00:00:00
abstract::Rabies is a lethal viral infection that can affect almost all mammals, including humans. To better understand the replication of Rabies lyssavirus, we investigated if the viral load in brains naturally infected with rabies influences viral internalization and viral growth kinetics in neuroblastoma cells, and if the vi...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2017.11.003
更新日期:2018-01-01 00:00:00
abstract::Viracea, a topical microbicide, is a blend of benzalkonium chloride and phytochemicals derived from Echinacea purpurea and is a proprietary formula from Destiny BioMediX Corp. Viracea was tested against 40 strains of herpes simplex virus (HSV): 15 strains (five HSV-1 and ten HSV-2) were resistant to acyclovir (ACV-R) ...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/s0166-3542(98)00027-8
更新日期:1998-07-01 00:00:00
abstract::Venezuelan equine encephalitis virus (VEEV) may cause encephalitis in humans, for which no FDA-approved antiviral treatment is available. Carbocyclic cytosine (carbodine) has broad-spectrum activity but toxicity has limited its utility. It was anticipated that one of the enantiomers of carbodine would show enhanced ac...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2008.07.002
更新日期:2008-12-01 00:00:00
abstract::Chronic hepatitis B infection remains a major public health problem worldwide. The hepatitis B virus belongs to the family of hepadnaviruses that replicate their DNA genome via a reverse transcription pathway. The chronicity of infection in infected hepatocytes is maintained by the persistence of the viral covalently ...
journal_title:Antiviral research
pub_type: 杂志文章,评审
doi:10.1016/s0166-3542(99)00056-x
更新日期:1999-11-01 00:00:00
abstract::Cyclosporin A (CsA) was assessed for its effect on the production of antiviral activity by human peripheral blood leukocytes (PBL). CsA markedly reduced the production of interferon-gamma (IFN-gamma) in response to stimulation with lectin mitogens, bacterial products, alloantigens, or Epstein-Barr virus (EBV)-transfor...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/0166-3542(82)90006-7
更新日期:1982-12-01 00:00:00
abstract::Nucleoside analogues have been the most successful antiviral compounds. Likewise, they are the most intriguing antiviral compounds, because of their structural relationship to natural nucleosides. This is also the reason why the design process of a potential selective antiviral nucleoside is so difficult. Too many nat...
journal_title:Antiviral research
pub_type: 杂志文章,评审
doi:10.1016/j.antiviral.2006.04.004
更新日期:2006-09-01 00:00:00
abstract::Infectious bursal disease (IBD) leads to considerable economic losses for the poultry industry by inducing severe immunosuppression and high mortality in chickens. The objective of this study was to determine if RNA interference (RNAi) could be utilized to inhibit IBDV replication in vitro. We selected 3 short interfe...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2007.11.007
更新日期:2008-08-01 00:00:00
abstract::Despite the importance of Dengue virus (DENV) infection in human health, there is not a fully effective vaccine or antiviral treatment against the infection. Since lipids such as cholesterol are required during DENV infection, its uptake and synthesis are increased in infected cells. Ezetimibe is an FDA-approved drug ...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2018.10.024
更新日期:2018-12-01 00:00:00
abstract::Infection with Junín virus (JUNV) is currently being effectively managed in the endemic region using a combination of targeted vaccination and plasma therapy. However, the long-term sustainability of plasma therapy is unclear and similar resources are not available for other New World arenaviruses. As a result, there ...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2018.07.009
更新日期:2018-09-01 00:00:00
abstract::Sixteen herpes simplex virus type 1 (HSV-1) and four type 2 (HSV-2) isolates resistant to acyclovir (ACV) were characterized retrospectively for drug resistance. Phenotypic testing was performed by means of tetrazolium reduction assay and genotypic analysis was carried out by sequencing of thymidine kinase (TK) and DN...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2010.03.002
更新日期:2010-06-01 00:00:00
abstract::Cytomegalovirus (CMV) is one of the most common opportunistic infections after transplantation. To prevent CMV infections, universal prophylaxis and pre-emptive therapy with ganciclovir or its prodrug valganciclovir is applied. However, prolonged antiviral therapy may result in drug-resistance emergence. We describe a...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2019.06.004
更新日期:2019-08-01 00:00:00
abstract::Three water-soluble derivatives of amphotericin B were tested for inhibition of HIV infection in vitro. The compounds amphotericin B methyl ester (AME) and N-(N'-(2-(4'-methylmorpholinio)ethyl)N"-cyclohexyl guanyl) amphotericin B methyl ester (MCG) inhibited HIV infection by 50% at 1 microgram/ml; N-(N'-(3-dimethylami...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/0166-3542(90)90031-2
更新日期:1990-09-01 00:00:00
abstract::T Follicular helper cells (TFH) are considered critical for B cell antibody response, and recent efforts have focused on promoting TFH in order to enhance vaccine efficacy. We studied the frequency and function of TFH in nasopharynx-associated lymphoid tissues (NALT) from children and adults, and its role in anti-infl...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2016.05.021
更新日期:2016-08-01 00:00:00
abstract::We have analyzed a panel of protein kinase inhibitors (PKIs) and found that some indolocarbazoles (Gö6976, K252a, K252c) proved to be highly effective inhibitors of GCV-sensitive and -resistant human cytomegalovirus (HCMV) strains, but did not show any effect against herpes simplex virus. Antiviral activity was determ...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/s0166-3542(00)00118-2
更新日期:2000-10-01 00:00:00
abstract::The immune evasion of wild-type (wt) rabies virus (RABV) has been attributed to its glycoprotein (G), particularly to their inefficiency to bind/enter into dendritic cells (DCs). However, the domain responsible for G-mediated DC activation is not clear. In the present study, attempts were made to map the domain(s) on ...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2017.01.022
更新日期:2017-05-01 00:00:00
abstract::An estimated 15-20 million individuals are co-infected by hepatitis B and hepatitis D virus worldwide and are at high risk of developing end-stage liver disease, including hepatocellular carcinoma. While HBV viremia can now be controlled in the vast majority of individuals by nucleoside analogs, leading to a delay of ...
journal_title:Antiviral research
pub_type: 杂志文章,评审
doi:10.1016/j.antiviral.2015.08.009
更新日期:2015-10-01 00:00:00
abstract::Novel analogues of the anti-HIV-1 agent TSAO-T, [1-[2',5'-bis-O-(tert- butyldimethylsilyl)-beta-D-ribofuranosyl]thymine]-3'-spiro-5"-(4"-amino- 1",2"-oxathiole-2",2"-dioxide) and its 3-methyl counterpart TSAO-m3T were obtained by modifications at positions 2' or 5' of the sugar moiety. These compounds were evaluated f...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/0166-3542(95)00012-b
更新日期:1995-06-01 00:00:00
abstract::We have shown previously that prostratin, a non-tumor promoting phorbol ester, inhibits chikungunya virus (CHIKV)-induced cytopathic effects in vitro. Prostratin is a potent activator of protein kinases C (PKC), a family of related serine/threonine kinases that regulate many cellular processes such as proliferation an...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2016.12.020
更新日期:2017-03-01 00:00:00
abstract::Murine cytomegalovirus (MCMV) neither induces a viral thymidine kinase (TK) nor enhances the activity of a cellular TK. Nevertheless, MCMV is highly susceptible to 9-(2-hydroxyethoxymethyl)guanine (acyclovir, ACV). The cellular TK is neither responsible for phosphorylation of ACV nor its anti-MCMV activity. This is cl...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/0166-3542(92)90086-k
更新日期:1992-01-01 00:00:00
abstract::In a previous study a 15-mer phosphorothioate oligonucleotide (S-ON) derived from the packaging signal in the 5' end of segment 1 (PB2) of influenza A virus (designated 5-15b) proved markedly inhibitory to virus replication. Here we investigated whether analogous inhibitory S-ONs targeting the 5' end of segments 2 (PB...
journal_title:Antiviral research
pub_type: 杂志文章
doi:10.1016/j.antiviral.2011.06.013
更新日期:2011-10-01 00:00:00