Polyamine Analog Diethylnorspermidine Restricts Coxsackievirus B3 and Is Overcome by 2A Protease Mutation In Vitro.

Polyamine Analog Diethylnorspermidine Restricts Coxsackievirus B3 and Is Overcome by 2A Protease Mutation In Vitro.
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多胺类似物二乙基去甲亚精胺体外抑制柯萨奇病毒B3并被2A蛋白酶突变克服

DOI:
10.3390/v13020310
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发表时间:
2021-02-16
期刊:
Viruses
影响因子:
--
通讯作者:
Mounce BC
Mounce BC
中科院分区:
其他
文献类型:
--
作者:
Hulsebosch BM;Mounce BC

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肠道病毒,包括柯萨奇病毒B3(CVB 3),是引起重大疾病(包括心肌病)的普遍病原体。不幸的是,没有治疗或疫苗可用于感染者。我们确定了宿主多胺途径作为潜在的药物靶点,因为抑制多胺生物合成显著降低了肠道病毒在体外和体内的复制。在这里,我们表明,CVB3是敏感的多胺耗尽通过多胺类似物二乙基去甲亚精胺(DENSpm),这增强了多胺catalysts通过诱导多胺乙酰化。我们证明,CVB3获得通过突变的2A蛋白酶,增强蛋白水解活性的存在下,DENSpm的抗性DENSpm。对DENSpm的抗性通过非催化位点突变的突变发生,并导致适应性降低。这些数据证明了靶向多胺催化剂作为抗病毒靶点潜力,并突出了潜在的耐药性机制。
Enteroviruses, including Coxsackievirus B3 (CVB3), are pervasive pathogens that cause significant disease, including cardiomyopathies. Unfortunately, no treatments or vaccines are available for infected individuals. We identified the host polyamine pathway as a potential drug target, as inhibiting polyamine biosynthesis significantly reduces enterovirus replication in vitro and in vivo. Here, we show that CVB3 is sensitive to polyamine depletion through the polyamine analog diethylnorspermidine (DENSpm), which enhances polyamine catabolism through induction of polyamine acetylation. We demonstrate that CVB3 acquires resistance to DENSpm via mutation of the 2A protease, which enhances proteolytic activity in the presence of DENSpm. Resistance to DENSpm occurred via mutation of a non-catalytic site mutation and results in decreased fitness. These data demonstrate that potential for targeting polyamine catabolism as an antiviral target as well as highlight a potential mechanism of resistance.
DOI: 10.1016/b978-0-444-53488-0.00018-3
发表时间: 2014-01-01
期刊: NEUROVIROLOGY
影响因子: --
作者:
Jubelt, Burk;Lipton, Howard L.
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DOI: 10.1128/jvi.00344-17
发表时间: 2017-08-01
影响因子: 5.4
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DOI: 10.3390/v11050403
发表时间: 2019-05-01
期刊: VIRUSES-BASEL
影响因子: 4.7
作者:
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