Project description:Enterovirus 71 (EV71) and Coxsackievirus A16 (CA16) are the predominant etiological agents of hand, foot, and mouth disease (HFMD) and both belong to the human enterovirus A species of the Picornaviridae family. These viruses share similar genetic homology, although the clinical manifestations of HFMD caused by the two viruses have some discrepancies. Furthermore, the underlying mechanisms leading to these differences remain unclear. microRNAs (miRNAs) participate in numerous biological or pathological processes, including host responses to viral infections, by targeting messenger RNAs (mRNAs) for translational repression or degradation. Here, we focused on differences in miRNA expression patterns in peripheral blood mononuclear cells (PBMCs) of rhesus monkeys infected with EV71 or CA16 at different time points using high-throughput sequencing technology. For the first time, this study demonstrated that EV71 and CA16 infection result in specific miRNA expression patterns in PBMCs.
Project description:Enterovirus 71 (EV71) and coxsackievirus A16 (CA16) are major causative agents for hand, foot and mouth disease (HFMD). In China, more than 70,756 children were infected and 40 died from the disease in recent years. This study aimed to develop a protein chip that can simultaneously detect and differentiate the antibodies induced by EV71 and CA16 simultaneously. The structure protein vp1 and vp3 from the two viruses were purified and spotted onto an aldehyde groupmodified glass slide at 1mg/ml. After that, the protein chip was reacted with the corresponding positive serum against these viruses, hybridized with a Cy3-labeled secondary antibody and scanned using the popular GenePix 4000B Microarray Scanner. In this study, Both IgG and IgM serum antibody to EV71 and CA16 were detected using protein Chip. The results showed that this method could hybridize specifically with the corresponding antibodies with strong signals and without cross-hybridization. The data also confirmed the proposed method's specificity, sensitivity, and convenience. In conclusion, this protein chip can be used to differentiate the antibodies induced by the EV71and CA16.
Project description:MicroRNA (miRNA) has been highlighted in pathogen-host interactions, however, little is known about roles of miRNAs in neurological pathogenesis of human enterovirus 71 (HEV71) infections. In this study, the comprehensive miRNA expression profiling in HEV71-infected human neuroblastoma SH-SY5Y cells were performed to identify cellular miRNAs response to HEV71. A total of 69 miRNAs were differentially expressed in HEV71-infected SH-SY5Y cells compared to non-infected cells. These findings provide new information on the miRNA and mRNA profiles in HEV71 infection, which may serve as a basis for further investigation into the biological functions of miRNAs in the neurological pathogenesis of HEV71 infections. Human neuroblastoma SH-SY5Y cells were infected with HEV71. After infection, the cells were harvested and extracted total RNA for miRNA profiling by hybridization on Affymetrix microarrays. A total of 69 miRNAs were differentially expressed inHEV71-infected SH-SY5Y cells compared to non-infected cells.
Project description:MicroRNA (miRNA) has been highlighted in pathogen-host interactions, however, little is known about roles of miRNAs in neurological pathogenesis of human enterovirus 71 (HEV71) infections. In this study, the comprehensive miRNA expression profiling in HEV71-infected human neuroblastoma SH-SY5Y cells were performed to identify cellular miRNAs response to HEV71. A total of 69 miRNAs were differentially expressed in HEV71-infected SH-SY5Y cells compared to non-infected cells. These findings provide new information on the miRNA and mRNA profiles in HEV71 infection, which may serve as a basis for further investigation into the biological functions of miRNAs in the neurological pathogenesis of HEV71 infections.