The cytotoxicity of coxsackievirus B3 is associated with a blockage of autophagic flux mediated by reduced syntaxin 17 expression.
The cytotoxicity of coxsackievirus B3 is associated with a blockage of autophagic flux mediated by reduced syntaxin 17 expression.
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柯萨奇病毒 B3 的细胞毒性与突触蛋白 17 表达减少介导的自噬流阻断有关
DOI:
10.1038/s41419-018-0271-0
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发表时间:
2018-02-14
影响因子:
9
通讯作者:
Yang Z
中科院分区:
文献类型:
--
作者:
Tian L;Yang Y;Li C;Chen J;Li Z;Li X;Li S;Wu F;Hu Z;Yang Z
Coxsackievirus B3 (CVB3) is an important human pathogen linked to cardiac arrhythmias and acute heart failure. CVB3 infection has been reported to induce the formation of autophagosomes that support the viral replication in host cells. Interestingly, our study shows that the accumulation of autophagosomes during CVB3 infection is caused by a blockage of autophagosome–lysosome fusion rather than the induction of autophagosome biogenesis. Moreover, CVB3 decreases the transcription and translation of syntaxin 17 (STX17), a SNARE (soluble N-ethylmaleimide-sensitive factor activating protein receptor) protein involved in autophagosome–lysosome fusion. Overexpression of STX17 restored the autophagic flux, alleviated the virus-induced lysosomal dysfunction, and decreased the apoptosis induced by CVB3 infection in HeLa cells. Taken together, our results suggest that CVB3 infection impairs the autophagic flux by blocking autophagosome–lysosome fusion. These findings thus point to potential new therapeutic strategies targeting STX17 or autophagosome–lysosome fusion for treating CVB3-associated diseases.
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影响因子:
3.7
作者:
Lee CJ;Huang YC;Yang S;Tsao KC;Chen CJ;Hsieh YC;Chiu CH;Lin TY
通讯作者:
Lin TY
影响因子:
11.4
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Vousden, Karen H.
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McManus, BM
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Nieva, Jose L.
影响因子:
5.4
作者:
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通讯作者:
Nam, JH