Virus-derived small interfering RNAs serve as new intercellular immune modulators against viral infection in mammals
1 State Key Laboratory of Pharmaceutical Biotechnology and Department of Physiology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China
2 Oriental Fortune Capital Post-Doctoral Innovation Center, Chinese Academy of Sciences, Shenzhen 518055, China
3 School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
  • Volume
  • Citation
    Zhou S, Xu Y, Zhou Y, Jin F. Virus-derived small interfering RNAs serve as new intercellular immune modulators against viral infection in mammals. ExRNA 2024(2):0008, https://doi.org/10.55092/exrna20240008. 
  • DOI
    10.55092/exrna20240008
  • Copyright
    Copyright2024 by the authors. Published by ELSP.
Abstract

RNA silencing serves as the primary antiviral immune system in plants, fungi, and invertebrates. Upon virus invasion, its replication intermediates act as pathogen-associated molecular patterns (PAMPs), promptly recognized and processed by Dicer into siRNAs. These virus-derived small interfering RNAs (vsiRNAs) then guide specific cleavage of the viral genome. In mammalian cells, the presence of vsiRNAs has been difficult to detect. However, recent studies indicate that vsiRNA expression can be detected when viruses infect undifferentiated mammalian cells. These findings complement new antiviral mechanisms in mammalian cells, but also face several controversies. Therefore, we will briefly discuss the current research status of vsiRNAs in mammals and analyze the controversies existing in this field.

Keywords

virus-derived small interfering RNAs; antiviral immunity; mammal

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References
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