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Wang L, You Z, Wang M, Yuan Y, Liu C, Yang N, Zhang H, Lian L. Genome-wide analysis of circular RNAs involved in Marek's disease tumourigenesis in chickens. RNA Biol 2020; 17:517-527. [PMID: 31948317 PMCID: PMC7237138 DOI: 10.1080/15476286.2020.1713538] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 01/02/2020] [Accepted: 01/04/2020] [Indexed: 01/01/2023] Open
Abstract
Marek's disease (MD), induced by Marek's disease virus (MDV), is a lymphotropic neoplastic disease and causes huge economic losses to the poultry industry. Non-coding RNAs (ncRNAs) play important regulatory roles in disease pathogenesis. To investigate host circular RNA (circRNA) and microRNA (miRNA) expression profile, RNA sequencing was performed in tumourous spleens (TS), spleens from the survivors (SS) without any lesion after MDV infection, and non-infected chicken spleens (NS). A total of 2,169 circRNAs were identified and more than 80% of circRNAs were derived from exon. The flanking introns of 1,744 exonic circRNAs possessed 579 reverse complementary matches (RCMs), which mainly overlapped with chicken repeat 1 family (CR1F). It suggested that CR1F mediated the cyclization of exons by intron pairing. Out of 2,169 circRNAs, 113 were differentially expressed circRNAs (DECs). The Q-PCR and Rnase R digestion experiments showed circRNA possessed high stability compared with their linear RNAs. Integrated with previous transcriptome data, we profiled regulatory networks of circRNA/long non-coding RNA (lncRNA)-miRNA-mRNA. Extensive competing endogenous RNA (ceRNA) networks were predicted to be involved in MD tumourigenesis. Interestingly, circZMYM3, an intronic circRNA, interacted with seven miRNAs which targeted some immune genes, such as SWAP70 and CCL4. Gga-miR-155 not only interacted with circGTDC1 and circMYO1B, but also targeted immune-related genes, such as GATA4, which indicated the roles of non-coding RNAs played to mediate immune responsive genes. Collectively, this is the first study that integrated RNA expression profiles in MD model. Our results provided comprehensive interactions of ncRNAs and mRNA in MD tumourigenesis.
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102
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Pan Q, Wang J, Gao Y, Wang Q, Cui H, Liu C, Qi X, Zhang Y, Wang Y, Li K, Gao L, Liu A, Wang X. Identification of chicken CAR homology as a cellular receptor for the emerging highly pathogenic fowl adenovirus 4 via unique binding mechanism. Emerg Microbes Infect 2020; 9:586-596. [PMID: 32174269 PMCID: PMC7144210 DOI: 10.1080/22221751.2020.1736954] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since 2015, the prevalence of severe hepatitis-hydropericardium syndrome, which is caused by the novel genotype fowl adenovirus serotype 4 (FAdV-4), has increased in China and led to considerable economic losses. The replication cycle of FAdV-4, especially the emerging highly pathogenic novel genotype FAdV-4, remains largely unknown. The adenovirus fibre interacts with the cellular receptor as the initial step in adenovirus (AdV) infection. In our previous studies, the complete genome sequence showed that the fibre patterns of FAdV-4 were distinct from all other AdVs. Here, protein-blockage and antibody-neutralization assays were performed to confirm that the novel FAdV-4 short fibre was critical for binding to susceptible leghorn male hepatocellular (LMH) cells. Subsequently, fibre 1 was used as bait to investigate the receptor on LMH cells via mass spectrometry. The chicken coxsackie and adenovirus receptor (CAR) protein was confirmed as the novel FAdV-4 receptor in competition assays. We further identified the D2 domain of CAR (D2-CAR) as the active domain responsible for binding to the short fibre of the novel FAdV-4. Taken together, these findings demonstrate for the first time that the chicken CAR homolog is a cellular receptor for the novel FAdV-4, which facilitates viral entry by interacting with the viral short fibre through the D2 domain. Collectively, these findings provide an in-depth understanding of the mechanisms of the emerging novel genotype FAdV-4 invasion and pathogenesis.
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103
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Liao R, Ma K, Tang S, Liu C, Yue H, Liang B. Biomimetic Mineralization to Fabricate Superhydrophilic and Underwater Superoleophobic Filter Mesh for Oil–Water Separations. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00739] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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104
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Liu Y, Xu Z, Zhang Y, Yu M, Wang S, Gao Y, Liu C, Zhang Y, Gao L, Qi X, Cui H, Pan Q, Li K, Wang X. Marek's disease virus as a CRISPR/Cas9 delivery system to defend against avian leukosis virus infection in chickens. Vet Microbiol 2020; 242:108589. [PMID: 32122593 DOI: 10.1016/j.vetmic.2020.108589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/14/2020] [Accepted: 01/15/2020] [Indexed: 12/31/2022]
Abstract
The CRISPR/CRISPR-associated protein 9 (Cas9) system is a powerful gene-editing tool originally discovered as an integral mediator of bacterial adaptive immunity. Recently, this technology has been explored for its potential utility in providing new and unique treatments for viral infection. Marek's disease virus (MDV) and avian leukosis virus subgroup J (ALV-J), major immunosuppressive viruses, cause significant economic losses to the chicken industry. Here, we evaluated the efficacy of using MDV as a CRISPR/Cas9-delivery system to directly target and disrupt the reverse-transcribed products of the ALV-J RNA genome during its infection cycle in vitro and in vivo. We first screened multiple potential guide RNA (gRNA) target sites in the ALV-J genome and identified several optimized targets capable of effectively disrupting the latently integrated viral genome and providing efficient defense against new infection by ALV-J in cells. The optimal single-gRNAs and Cas9-expression cassettes were inserted into the genome of an MDV vaccine strain. The results indicated that engineered MDV stably expressing ALV-J-targeting CRISPR/Cas9 efficiently resisted ALV-J challenge in host cells. These findings demonstrated the CRISPR/Cas9 system as an effective treatment strategy against ALV-J infection. Furthermore, the results highlighted the potential of MDV as an effective delivery system for CRISPR/Cas9 in chickens.
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105
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Fu YQ, You CY, Liu CJ, Xu F. [Interpretation of guideline for the management of pediatric severe traumatic brain injury (third edition)]. ZHONGHUA ER KE ZA ZHI = CHINESE JOURNAL OF PEDIATRICS 2020; 58:9-12. [PMID: 31905469 DOI: 10.3760/cma.j.issn.0578-1310.2020.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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106
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Wang Y, Fan L, Jiang N, Gao L, Li K, Gao Y, Liu C, Cui H, Pan Q, Zhang Y, Wang X, Qi X. Naturally occurring cell-adapted classic strain of infectious bursal disease virus. Vet Microbiol 2020; 243:108620. [PMID: 32273006 DOI: 10.1016/j.vetmic.2020.108620] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/24/2020] [Accepted: 02/24/2020] [Indexed: 01/25/2023]
Abstract
Infectious bursal disease virus (IBDV), the etiological agent of infectious bursal disease (IBD), is a variable RNA virus of Avibirnavirus. Some artificially attenuated vaccine strains of IBDV can adapt to cell culture of chicken embryo fibroblast (CEF) cell or its immortalized cell line DF1 in vitro while wild-type IBDV cannot. In this study, for the first time, a naturally occurring cell-adapted classic strain (genogroup 1) of IBDV named IBD17JL01 was identified in China. Animal experiments showed that IBD17JL01 could severely damage the central immune organ of infected chickens. Sequence analysis of the full-length genome revealed the peculiar molecular characteristics of IBD17JL01 with a few amino acid substitutions that might be involved in cell-tropism, antigenicity, and virulence of IBDV. Identification of this novel strain is beneficial to our understanding of the complexity of the epidemiology of IBDV. And the expansion of viral cell-tropism might increase the potential risk of the reassortment of different IBDVs including the live vaccines.
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107
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Yang K, Wang C, Wei X, Ding S, Liu C, Tian F, Li F. Self-Illuminating Photodynamic Therapy with Enhanced Therapeutic Effect by Optimization of the Chemiluminescence Resonance Energy Transfer Step to the Photosensitizer. Bioconjug Chem 2020; 31:595-604. [PMID: 31830411 DOI: 10.1021/acs.bioconjchem.9b00740] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The major obstacles to the wider application of photodynamic therapy (PDT) are drawbacks of the current photosensitizers and the tissue penetration limit of the common outer light source. In the present study, the chemiluminescence (CL) from the luminol-H2O2-horseradish peroxidase reaction was explored as a potential inner light source for the intracellular activation of carbon dots (CDs)-based PDT system. To fully use the light and enhance the overall PDT yield, the nanocarrier of CDs, the light of CL, and the PDT agent chlorin e6 (Ce6) were carefully selected and designed to form an efficient and united system. Bright-yellow-emissive CDs (y-CDs) were synthesized through purposeful regulation of the absorption and emission spectra to enhance the overlapping areas in the chemiluminescence resonance energy transfer (CRET) and fluorescence resonance energy transfer (FRET) processes. Our results reflected CL-induced y-CDs-Ce6 system (10 μM) successfully generated reactive oxygen species (ROS, 35.93%), killed ∼90% SMMC-7721 cells in vitro, and significantly delayed tumor growth in vivo. On the basis of immunohistochemical observations of proliferating cell nuclear antigen (PCNA) and platelet/endothelial cell adhesion molecule-1 (PECAM-1 or CD31) results, we concluded that the CL-induced y-CDs-Ce6 system had excellent performance in cancer therapy. The enhanced therapeutic effect was ascribed to two pathways: a direct CRET process and another process of CRET with subsequent y-CD-mediated FRET (CRET-to-FRET).
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108
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Chang F, Xing L, Xing Z, Yu M, Bao Y, Wang S, Farooque M, Li X, Liu P, Pan Q, Qi X, Gao L, Li K, Liu C, Zhang Y, Cui H, Wang X, Gao Y. Development and evaluation of a gp85 protein-based subgroup-specific indirect enzyme-linked immunosorbent assay for the detection of anti-subgroup J avian leukosis virus antibodies. Appl Microbiol Biotechnol 2020; 104:1785-1793. [PMID: 31900555 DOI: 10.1007/s00253-019-10320-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 12/08/2019] [Accepted: 12/15/2019] [Indexed: 12/11/2022]
Abstract
Avian leukosis virus subgroup J (ALV-J) is an important pathogen for various neoplasms and causes significant economic losses in the poultry industry. Serological detection of specific antibodies against ALV-J infection is important for successful clinical diagnosis. Here, a 293F stable cell line was established to stably express gp85 protein. In this cell line, gp85 protein was expressed at approximately 30 mg/L. A subgroup-specific indirect enzyme-linked immunosorbent assay (iELISA) was developed using ALV-J gp85 protein as coated antigen to detect antibodies against ALV-J. The sensitivity of the iELISA (1:51200 diluted in serum) was 16 times more than that of indirect immunofluorescence assay (IFA; 1:3200 diluted in serum). Moreover, there was no crossreactivity with antibodies against other common avian viruses and other avian leukosis virus subgroups, such as subgroups A and B. The practicality of the iELISA was further evaluated by experimental infection and clinical samples. The results from experimental infection indicated that anti-ALV-J antibodies were readily detected by iELISA as early as 4 weeks after ALV-J infection, and positive antibodies were detected until 20 weeks, with an antibody-positive rate of 11.1% to 33.3%. Moreover, analysis of clinical samples showed that 9.49% of samples were positive for anti-ALV-J antibodies, and the concordance rate of iELISA and IFA was 99.24%. Overall, these results suggested that the subgroup-specific iELISA developed in this study had good sensitivity, specificity, and feasibility. This iELISA will be very useful for epidemiological surveillance, diagnosis, and eradication of ALV-J in poultry farms.
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109
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Wang B, Yang X, Ma L, Zhai L, Xuan J, Liu C, Bai Z. Ultra-high efficient pH induced selective removal of cationic and anionic dyes from complex coexisted solution by novel amphoteric biocomposite microspheres. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.115922] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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110
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Gao M, Zhu Y, Liu Y, Wu K, Lu H, Tang S, Liu C, Yue H, Liang B, Yan J. The role of adsorbed oleylamine on gold catalysts during synthesis for highly selective electrocatalytic reduction of CO2 to CO. Chem Commun (Camb) 2020; 56:7021-7024. [DOI: 10.1039/d0cc01088j] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adsorbed oleylamine on Au NP surfaces during preparation can efficiently enhance electrocatalysis of CO2 to CO and inhibit the hydrogen evolution reaction.
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111
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Xiang W, Sun Z, Wu Y, He LN, Liu CJ. Enhanced cycloaddition of CO2 to epichlorohydrin over zeolitic imidazolate frameworks with mixed linkers under solventless and co-catalyst-free condition. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.01.050] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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112
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Yu Z, Zhang Y, Lan X, Wang Y, Zhang F, Gao Y, Li K, Gao L, Pan Q, Qi X, Cui H, Zhou L, Sun G, Wang X, Liu C. Natural co-infection with two virulent wild strains of Marek's disease virus in a commercial layer flock. Vet Microbiol 2019; 240:108501. [PMID: 31902513 DOI: 10.1016/j.vetmic.2019.108501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 01/13/2023]
Abstract
Marek's disease (MD) is a highly contagious lymphoproliferative poultry disease caused by the oncogenic herpesvirus, Marek's disease virus (MDV). MDV strains have shown a continued evolution of virulence leading to immune failure, and MD cases continue to occur. Co-infection of virulent MDV strains is an important factor leading to viral evolution and host immune failure. This study conducted a laboratory diagnosis and analysis of a MDV infected flock. Testing showed that all samples were MDV positive. PCR detection identified a variable 132-base pair repeat (132-bpr) sequence copy number. This indicated that two virulent strains of MDV were co-infecting the flock. Therefore, we performed homology, sequence alignment, and phylogenetic tree analysis of MDV variant genes including meq, pp38, and RLORF4. Two MDV strains had co-infected the flock; one was the 132bpr two-copy characteristic strain (AH2C) and the other was a 132bpr three-copy characteristic strain (AH3C). Specific mutations in AH3C were found, suggesting that it is a new variant strain. Furthermore, the viral load of the two strains in vivo indicated that both strains had high and similar replication ability. There was no significant difference in the proportion of positive samples of the two strains causing disease. In the whole flock, neither strain displayed an obvious advantage. However, there was a dominant strain in individual chickens, with the exception of one sample. This study reported the co-infection regularity of two virulent MDV strains in the same flock, and even in the same chicken in field conditions. In the context of overall epidemiology, this study is a useful reference.
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113
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Wu K, Yang C, Zhu Y, Wang J, Wang X, Liu C, Liu Y, Lu H, Liang B, Li Y. Synthesis-Controlled α- and β-Molybdenum Carbide for Base-Promoted Transfer Hydrogenation of Lignin to Aromatic Monomers in Ethanol. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04910] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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114
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Jang BWL, Allagui A, Liu CJ, Nozaki T, Tu X, Zhu X. Frontiers in plasma catalysis (ISPCEM 2018). Catal Today 2019. [DOI: 10.1016/j.cattod.2019.06.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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115
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Liu A, Li H, Qi X, Wang Q, Yang B, Wu T, Yan N, Li Y, Pan Q, Gao Y, Gao L, Liu C, Zhang Y, Cui H, Li K, Wang Y, Wang X. Macrophage Migration Inhibitory Factor Triggers Inflammatory Responses During Very Virulent Infectious Bursal Disease Virus Infection. Front Microbiol 2019; 10:2225. [PMID: 31632367 PMCID: PMC6779731 DOI: 10.3389/fmicb.2019.02225] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 09/11/2019] [Indexed: 12/31/2022] Open
Abstract
Infectious bursal disease (IBD) is one of the main threats to the poultry industry worldwide. In China, very virulent IBD virus (vvIBDV) is the main prevalent virus strain, causing inflammation, immunosuppression, and high mortality in young chickens. To determine whether this acute inflammation can trigger lesions or even death in chickens, it is important to study the mechanism of vvIBDV pathogenicity. Thus, in the current study, we investigated the inflammation response, bursal lesions, and mortality in chickens caused by vvIBDV at different time points postinfection. Results showed an upregulation of proinflammatory cytokines, including interleukin-1β and interleukin-18, and macrophage infiltration in bursa in response to vvIBDV infection. High-throughput proteomic sequencing based on isobaric tags for relative and absolute quantitation showed that chicken macrophage migration inhibitory factor (chMIF) was upregulated uniquely in primary bursal cells infected with vvIBDV compared with infection by nonpathogenic attenuated IBDV. We confirmed that chMIF was upregulated by vvIBDV infection both in vivo and in vitro. Moreover, chMIF was extracellularly secreted by infected DT40 and primary bursal cells. Further experiments revealed that the secreted chMIF could induce migration of peripheral blood mononuclear cells and promote transcription of proinflammatory cytokines in chicken primary macrophages. Notably, these effects of chMIF could be reduced by using an MIF specific inhibitor. Thus, our study elucidates critical molecular determinants underlying vvIBDV-mediated initiation of acute inflammation, which might be pivotal to understand the mechanism of vvIBDV pathogenicity.
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116
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Zeng F, Wu M, Ma L, Han Z, Shi Y, Zhang Y, Liu C, Zhang S, Cong F, Liu S. Rapid and sensitive real-time recombinase polymerase amplification for detection of Marek's disease virus. Mol Cell Probes 2019; 48:101468. [PMID: 31580913 DOI: 10.1016/j.mcp.2019.101468] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 09/24/2019] [Accepted: 09/30/2019] [Indexed: 12/18/2022]
Abstract
Marek's disease (MD) is one of the most devastating diseases of poultry. It's caused by the highly infectious alphaherpesvirus MD virus serotype 1 (MDV-1). In this study, a rapid and easy-to-use assay based on recombinase polymerase amplification (RPA) was developed for MDV detection. Primer-probe sets targeting the highly conserved region of Meq gene were designed and applied to the RPA assay. The assay was carried out on a real-time thermostatic fluorescence detector at 39 °C for 20 min. As revealed by the results, no cross-reactions were found with the Newcastle disease virus (NDV), chicken infectious anemia virus (CAV), infectious bursal disease virus (IBDV), avian infectious bronchitis virus (IBV), infectious laryngotracheitis virus (ILTV), avain influenza virus (AIV), avian leucosis virus (ALV), avian reovirus (ARV), Marek's disease virus serotype 2 (MDV-2) and turkey herpes virus (HVT), indicating appropriate specificity of the assay. Plasmid DNA standards were used to determine the sensitivity of the assay and the detection limit was 102copies/μL. To further evaluate the clinical performance, 94 clinical samples were subjected to the RPA assay and 28 samples were tested MDV positive, suggesting that the real-time RPA assay was sufficient enough for clinical sample detection. Thus, a highly specific and sensitive real-time RPA assay was established and validated as a candidate for MDV diagnosis. Additionally, the portability of real-time RPA assay makes it suitable to be potentially applied in clinical diagnosis in the field, especially in resource-limited settings.
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117
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Li K, Liu Y, Xu Z, Zhang Y, Luo D, Gao Y, Qian Y, Bao C, Liu C, Zhang Y, Qi X, Cui H, Wang Y, Gao L, Wang X. Avian oncogenic herpesvirus antagonizes the cGAS-STING DNA-sensing pathway to mediate immune evasion. PLoS Pathog 2019; 15:e1007999. [PMID: 31539404 PMCID: PMC6799934 DOI: 10.1371/journal.ppat.1007999] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 10/18/2019] [Accepted: 07/25/2019] [Indexed: 12/18/2022] Open
Abstract
The cellular DNA sensor cGMP-AMP synthase (cGAS) detects cytosolic viral DNA via the stimulator of interferon genes (STING) to initiate innate antiviral response. Herpesviruses are known to target key immune signaling pathways to persist in an immune-competent host. Marek’s disease virus (MDV), a highly pathogenic and oncogenic herpesvirus of chickens, can antagonize host innate immune responses to achieve persistent infection. With a functional screen, we identified five MDV proteins that blocked beta interferon (IFN-β) induction downstream of the cGAS-STING pathway. Specifically, the MDV major oncoprotein Meq impeded the recruitment of TANK-binding kinase 1 and IFN regulatory factor 7 (IRF7) to the STING complex, thereby inhibiting IRF7 activation and IFN-β induction. Meq overexpression markedly reduced antiviral responses stimulated by cytosolic DNA, whereas knockdown of Meq heightened MDV-triggered induction of IFN-β and downstream antiviral genes. Moreover, Meq-deficient MDV induced more IFN-β production than wild-type MDV. Meq-deficient MDV also triggered a more robust CD8+ T cell response than wild-type MDV. As such, the Meq-deficient MDV was highly attenuated in replication and lymphoma induction compared to wild-type MDV. Taken together, these results revealed that MDV evades the cGAS-STING DNA sensing pathway, which underpins the efficient replication and oncogenesis. These findings improve our understanding of the virus-host interaction in MDV-induced lymphoma and may contribute to the development of novel vaccines against MDV infection. Marek’s disease virus (MDV) is an avian oncogenic herpesvirus that causes a fatal disease in poultry worldwide. Chickens infected with MDV become more susceptible to secondary viral or bacterial infections. However, the mechanisms of MDV-induced immunosuppression and tumorigenesis remain largely unknown. The cGAS-STING pathway is crucial for innate immune responses against both microbial pathogens and intrinsic tumors. Here we identified the MDV oncoprotein, Meq, as an inhibitor of the cGAS-STING DNA-sensing pathway. Mechanistically, Meq interacted with STING and IRF7, and impaired the recruitment of TBK1 and IRF7 to the STING complex, thus inhibiting IRF7 activation and IFN-β induction. Loss of Meq potently enhanced innate immune response, while impaired the replication and oncogenesis of MDV in chickens. Our findings reveal an important mechanism of immune evasion of MDV, instructing us on the virus-host interaction in MDV-induced lymphoma and potential new means to develop MDV vaccine.
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118
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Zhang Y, Yu Z, Lan X, Zhang F, Wang Q, Li K, Pan Q, Gao Y, Qi X, Cui HY, Wang Y, Gao L, Wang X, Liu C. A high frequency of Gallid herpesvirus-2 co-infection with Reticuloendotheliosis virusis associated with high tumor rates in Chinese chicken farms. Vet Microbiol 2019; 237:108418. [PMID: 31585637 DOI: 10.1016/j.vetmic.2019.108418] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 09/04/2019] [Accepted: 09/04/2019] [Indexed: 10/26/2022]
Abstract
The prevalence of Marek's disease (MD) caused by Gallid herpesvirus-2 (GaHV-2) has been increasing in chickens in China despite universal vaccination. Among the possible reasons for this trend, of Reticuloendotheliosis virus (REV) contamination in vaccines could lead to co-infection and reduce the vaccine efficacy. Here, we report the epidemiological findings of our continuous surveillance of MD, and an examination of the effects of REV and/or GaHV-2 co-infection. A total of 1230 samples were collected between 2011 and 2015 from 305 flocks covering many of the chicken-raising regions of China. Among these, 606 samples were determined to be GaHV-2-positive, 13.0% of which were found to be co-infected with REV from 18.8% of the flocks. One GaHV-2 strain (HS/1412), a REV strain (HS/1412R), and a GaHV-2 and REV-co-infected strain (HS/1412 GR) were isolated from different chickens of a GaHV-2 and REV co-infected flock. Pathogenicity tests showed that HS/1412 and HS/1412 GR caused disease in all chickens and that HS/1412R induced morbidity in 84.6% of the infected chickens. HS/1412 GR induced 100% mortality and 76.9% tumor formation, which were significantly higher frequencies than those observed with strain HS/1412 (38.5% and 15.4%, respectively) and HS/1412R (0% and 0%). These results indicate that co-infection with GaHV-2 and REV might explain the persistent, sporadic outbreaks of neoplastic disease in some commercial flocks, resulting in a significant economic burden to the poultry industry of China.
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119
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Hu X, Jia X, Zhang X, Liu Y, Liu CJ. Improvement in the activity of Ni/ZrO2 by cold plasma decomposition for dry reforming of methane. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.105720] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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120
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Jia B, Song H, Liu C, Sun Y, Yuan Y. Synthetic genome with recoding. SCIENCE CHINA. LIFE SCIENCES 2019; 62:1096-1097. [PMID: 31372819 DOI: 10.1007/s11427-019-9595-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 07/17/2019] [Indexed: 11/28/2022]
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121
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Luo Y, Liu C, Yue H, Tang S, Zhu Y, Liang B. Selective oxidation of cyclopentene with H2O2 by using H3PW12O40 and TBAB as a phase transfer catalyst. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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122
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Yu Y, Ma K, Zhuang R, Wu K, Liao Q, Zhong S, Yue H, Liu C, Tang S, Liang B. Hydroxyl-Mediated Formation of Highly Dispersed SnO2/TiO2 Heterojunction via Pulsed Chemical Vapor Deposition To Enhance Photocatalytic Activity. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02360] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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123
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Cheng J, Zhu K, Lu H, Yue H, Liu C, Liang B, Tang S. Quantitative Relationship between CO2 Absorption Capacity and Amine Water System: DFT, Statistical, and Experimental Study. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang H, Wang L, Liu C, Xu Y, Zhuang Y, Zhou Y, Gu S, Xu W, Yang H. Effect of temperature on the morphology of poly (lactic acid) porous membrane prepared via phase inversion induced by water droplets. Int J Biol Macromol 2019; 133:902-910. [DOI: 10.1016/j.ijbiomac.2019.04.145] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/10/2019] [Accepted: 04/20/2019] [Indexed: 12/20/2022]
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Wu K, Wang J, Zhu Y, Wang X, Yang C, Liu Y, Liu C, Lu H, Liang B, Li Y. Supported β-Mo2C on Carbon Materials for Kraft Lignin Decomposition into Aromatic Monomers in Ethanol. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01807] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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