Coxsackievirus B3 and adenovirus infections of cardiac cells are efficiently inhibited by vector-mediated RNA interference targeting their common receptor

被引:36
作者
Fechner, H.
Pinkert, S.
Wang, X.
Sipo, I.
Suckau, L.
Kurreck, J.
Doerner, A.
Sollerbrant, K.
Zeichhardt, H.
Grunert, H-P
Vetter, R.
Schultheiss, H-P
Poller, W.
机构
[1] Univ Med Berlin, Dept Cardiol & Pneumol, Charite, D-12200 Berlin, Germany
[2] Free Univ Berlin, Inst Chem & Biochem, D-1000 Berlin, Germany
[3] Karolinska Inst, Ludwig Inst Canc Res, Stockholm Branch, Stockholm, Sweden
[4] Univ Med Berlin, Dept Virol, Inst Infect Dis, Charite, D-12200 Berlin, Germany
[5] Univ Med Berlin, Inst Clin Pharmacol & Toxicol, Charite, D-12200 Berlin, Germany
关键词
viral cardiomyopathy; coxsackievirus-adenovirus-receptor; RNA interference; gene silencing; adenovirus vector;
D O I
10.1038/sj.gt.3302948
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
As coxsackievirus B3 (CoxB3) and adenoviruses may cause acute myocarditis and inflammatory cardiomyopathy, isolation of the common coxsackievirus-adenovirus-receptor (CAR) has provided an interesting new target for molecular antiviral therapy. Whereas many viruses show high mutation rates enabling them to develop escape mutants, mutations of their cellular virus receptors are far less likely. We report on antiviral efficacies of CAR gene silencing by short hairpin (sh) RNAs in the cardiac-derived HL-1 cell line and in primary neonatal rat cardiomyocytes (PNCMs). Treatment with shRNA vectors mediating RNA interference against the CAR resulted in almost complete silencing of receptor expression both in HL-1 cells and PNCMs. Whereas CAR was silenced in HL-1 cells as early as 24 h after vector treatment, its downregulation in PNCMs did not become significant before day 6. CAR knockout resulted in inhibition of CoxB3 infections by up to 97% in HL-1 cells and up to 90% in PNCMs. Adenovirus was inhibited by only 75% in HL-1 cells, but up to 92% in PNCMs. We conclude that CAR knockout by shRNA vectors is efficient against CoxB3 and adenovirus in primary cardiac cells, but the efficacy of this approach in vivo may be influenced by cell type-specific silencing kinetics in different tissues.
引用
收藏
页码:960 / 971
页数:12
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