Abstract
In recent years, enterovirus A71 (EV-A71) infection has become a major global public health problem, especially for infants and young children. The results of epidemiological research show that EV-A71 infection can cause acute hand, foot, and mouth disease (HFMD) and complications of the nervous system in severe cases, including aseptic pediatric meningoencephalitis, acute flaccid paralysis, and even death. Many studies have demonstrated that EV-A71 infection may trigger a variety of intercellular and intracellular signaling pathways, which are interconnected to form a network that leads to the innate immune response, immune escape, inflammation, and apoptosis in the host. This article aims to provide an overview of the possible mechanisms underlying infection, signaling pathway activation, the immune response, immune evasion, apoptosis, and the inflammatory response caused by EV-A71 infection and an overview of potential therapeutic strategies against EV-A71 infection to better understand the pathogenesis of EV-A71 and to aid in the development of antiviral drugs and vaccines.
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Abbreviations
- HFMD:
-
hand, foot, and mouth disease
- EV-A71:
-
enterovirus A71
- RNA:
-
ribonucleic acid
- CV:
-
coxsackievirus
- PAMPs:
-
pathogen-associated molecular patterns
- SCARB2:
-
scavenger receptor B2
- PRRs:
-
pattern recognition receptors
- RD:
-
rhabdomyosarcoma
- UTR:
-
untranslated region
- eIF4E:
-
eukaryotic initiation factor 4E
- eIF3:
-
eukaryotic initiation factor 3
- RdRp:
-
RNA-dependent RNA polymerase
- PABP:
-
poly(A)-binding protein
- DNA:
-
deoxyribonucleic acid
- VP:
-
viral protein
- P1:
-
precursor protein 1
- hSCARB2:
-
human scavenger receptor class B, member 2
- HS:
-
heparan sulfate
- PSGL-1:
-
P-selectin glycoprotein ligand 1
- Anx2:
-
annexin II
- PHBs:
-
prohibitins
- HSP90β:
-
heat shock protein 90β
- GA:
-
geldanamycin
- 17-AAG:
-
analogue 17-allyamino-17-demethoxygeldanamycin
- HSP90:
-
heat shock protein 90
- CNS:
-
central nervous system
- PRPH:
-
peripherin
- BBB:
-
blood-brain barrier
- IFNAR:
-
interferon-α receptor
- RAT:
-
retrograde axonal transport
- NMJs:
-
neuromuscular junctions
- UGGT1:
-
UDP-glucose glycoprotein glucosyltransferase 1
- CpG:
-
cytidine phosphoguanosine
- MDA5:
-
melanoma differentiation associated gene 5
- IFN:
-
interferon
- ISG:
-
IFN-stimulated gene
- CaMKII:
-
calmodulin-dependent protein kinase II
- AIF:
-
apoptosis-inducing factor
- MAPK:
-
mitogen-activated protein kinase
- BMK1:
-
big MAP kinase 1
- EGFR:
-
epidermal growth factor receptor
- COX-2:
-
cyclooxygenase-2
- PGE2:
-
prostaglandin E2
- OS:
-
oxidative stress
- ROS:
-
reactive oxygen species
- NF-κB:
-
nuclear factor kappa B
- OAS3:
-
oligoadenylate synthetase 3
- IRF9:
-
IFN regulatory factor 9
- ISREs:
-
IFN-stimulated response elements
- iIELs:
-
intraepithelial lymphocytes
- iNK:
-
intestinal NK cells
- PP1:
-
protein phosphatase 1
- IKKβ:
-
inhibitor of kappa B kinase β
- FDA:
-
Food and Drug Administration
- IMPDH:
-
hypoxanthine dehydrogenase
- GTP:
-
guanosine triphosphate
- AIM:
-
absent in melanoma
- ASC:
-
apoptosis-associated speck-like protein containing CARD domain
- SAT1:
-
spermidine-spermine N1 acetyltransferase
- NLRP3:
-
NOD-like receptor thermal protein domain associated protein 3
- NLR:
-
NOD-like receptor
- 2CL:
-
2C ligand
- SELEX:
-
systematic evolution of ligands by exponential enrichment
- CPE:
-
cytopathic effect
- pIY:
-
miRNA-based attenuated live vaccine strain
- SAVE:
-
synthetic attenuated virus engineering
- VLPs:
-
virus-like particles
- IRES:
-
internal ribosome entry site
- BRAF:
-
V-Raf murine sarcoma viral oncogene homolog B1
- CTL:
-
cytotoxic T lymphocyte
- UpA:
-
uridine adenosine phosphate
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The authors thank Professor Lingqing Xu from the Department of Qingyuan People’s Hospital, who carefully reviewed the manuscript and provided his expert opinion.
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Jianmei Lai and Zhishan Li designed the study and drafted the manuscript. Lixin Pan and Chunhong Ma collected data. Yunxia Huang and Jiachun Guo analyzed the data. Jianmei Lai, Zhishan Li, and Zifei Zhou refined the manuscript and coordination. All authors read and approved the final manuscript.
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Lai, J., Li, Z., Pan, L. et al. Research progress on pathogenic and therapeutic mechanisms of Enterovirus A71. Arch Virol 168, 260 (2023). https://doi.org/10.1007/s00705-023-05882-8
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DOI: https://doi.org/10.1007/s00705-023-05882-8