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Influenza microRNA

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https://www.readbyqxmd.com/read/29499948/endogenous-cellular-micrornas-mediate-antiviral-defense-against-influenza-a-virus
#1
Shanxin Peng, Jing Wang, Songtao Wei, Changfei Li, Kai Zhou, Jun Hu, Xin Ye, Jinghua Yan, Wenjun Liu, George F Gao, Min Fang, Songdong Meng
The reciprocal interaction between influenza virus and host microRNAs (miRNAs) has been implicated in the regulation of viral replication and host tropism. However, the global roles of the cellular miRNA repertoire and the mechanisms of miRNA-mediated antiviral defense await further elucidation. In this study, we systematically screened 297 cellular miRNAs from human and mouse epithelial cells and identified five inhibitory miRNAs that efficiently inhibited influenza virus replication in vitro and in vivo...
March 2, 2018: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/29373693/lung-derived-exosomal-mir-483-3p-regulates-the-innate-immune-response-to-influenza-virus-infection
#2
Tadashi Maemura, Satoshi Fukuyama, Yukihiko Sugita, Tiago J S Lopes, Tomomi Nakao, Takeshi Noda, Yoshihiro Kawaoka
Exosomes regulate cell-cell communication by transferring functional proteins and RNAs between cells. Here, to clarify the function of exosomes during influenza virus infection, we characterized lung-derived exosomal microRNAs (miRNAs). Among the detected miRNAs, miR-483-3p was present at high levels in bronchoalveolar lavage fluid (BALF) exosomes during infection of mice with various strains of influenza virus, and miR-483-3p transfection potentiated gene expression of type I interferon and proinflammatory cytokine upon viral infection of MLE-12 cells...
January 24, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29327729/h5n1-influenza-virus-specific-mirna-like-small-rna-increases-cytokine-production-and-mouse-mortality-via-targeting-poly-rc-binding-protein-2
#3
Xihan Li, Zheng Fu, Hongwei Liang, Yanbo Wang, Xian Qi, Meng Ding, Xinlei Sun, Zhen Zhou, Ying Huang, Hongwei Gu, Limin Li, Xi Chen, Donghai Li, Quan Zhao, Fenyong Liu, Hua Wang, Jin Wang, Ke Zen, Chen-Yu Zhang
Infection of H5N1 influenza virus causes the highest mortality among all influenza viruses. The mechanisms underlying such high viral pathogenicity are incompletely understood. Here, we report that the H5N1 influenza virus encodes a microRNA-like small RNA, miR-HA-3p, which is processed from a stem loop-containing viral RNA precursor by Argonaute 2, and plays a role in enhancing cytokine production during H5N1 infection. Mechanistic study shows that miR-HA-3p targets poly(rC)-binding protein 2 (PCBP2) and suppresses its expression...
February 2018: Cell Research
https://www.readbyqxmd.com/read/29191962/nontypeable-haemophilus-influenzae-lysates-increase-heterogeneous-nuclear-ribonucleoprotein-secretion-and-exosome-release-in-human-middle-ear-epithelial-cells
#4
Stéphanie Val, Anna Krueger, Marian Poley, Ariella Cohen, Kristy Brown, Aswini Panigrahi, Diego Preciado
Nontypeable Haemophilus influenzae (NTHi), one of the most common acute otitis media (OM) pathogens, is postulated to promote middle-ear epithelial remodeling in the progression of OM from acute to chronic. The goal of this study was to examine early quantitative proteomic secretome effects of NTHi lysate exposure in a human middle-ear epithelial cell (HMEEC) line. NTHi lysates were used to stimulate HMEEC, and conditional quantitative stable isotope labeling with amino acids in cell culture of cell secretions was performed...
January 5, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29186842/cfa-mir-143-promotes-apoptosis-via-the-p53-pathway-in-canine-influenza-virus-h3n2-infected-cells
#5
Pei Zhou, Liqing Tu, Xi Lin, Xiangqi Hao, Qingxu Zheng, Weijie Zeng, Xin Zhang, Yun Zheng, Lifang Wang, Shoujun Li
MicroRNAs regulate multiple aspects of the host response to viral infection. This study verified that the expression of cfa-miR-143 was upregulated in vivo and in vitro by canine influenza virus (CIV) H3N2 infection. To understand the role of cfa-miR-143 in CIV-infected cells, the target gene of cfa-miR-143 was identified and assessed for correlations with proteins involved in the apoptosis pathway. A dual luciferase reporter assay showed that cfa-miR-143 targets insulin-like growth factor binding protein 5 (Igfbp5)...
November 25, 2017: Viruses
https://www.readbyqxmd.com/read/29163456/mir-194-inhibits-innate-antiviral-immunity-by-targeting-fgf2-in-influenza-h1n1-virus-infection
#6
Keyu Wang, Chengcai Lai, Hongjing Gu, Lingna Zhao, Min Xia, Penghui Yang, Xiliang Wang
Fibroblast growth factor 2 (FGF2 or basic FGF) regulates a wide range of cell biological functions including proliferation, angiogenesis, migration, differentiation, and injury repair. However, the roles of FGF2 and the underlying mechanisms of action in influenza A virus (IAV)-induced lung injury remain largely unexplored. In this study, we report that microRNA-194-5p (miR-194) expression is significantly decreased in A549 alveolar epithelial cells (AECs) following infection with IAV/Beijing/501/2009 (BJ501)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29093096/microrna-based-attenuation-of-influenza-virus-across-susceptible-hosts
#7
Barbara M Waring, Louisa E Sjaastad, Jessica K Fiege, Elizabeth J Fay, Ismarc Reyes, Branden Moriarity, Ryan A Langlois
Influenza A virus drives significant morbidity and mortality in humans and livestock. Annual circulation of the virus in livestock and waterfowl contributes to severe economic disruption and increases the risk of zoonotic transmission of novel strains into the human population, where there is no preexisting immunity. Seasonal vaccinations in humans help prevent infection and can reduce symptoms when infection does occur. However, current vaccination regimens available for livestock are limited in part due to safety concerns regarding reassortment/recombination with circulating strains...
January 15, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29059211/screening-differential-mirnas-responsible-for-permeability-increase-in-huvecs-infected-with-influenza-a-virus
#8
Shujing Zhang, Ying Wu, Zinan Xuan, Xiaoming Chen, Junjie Zhang, Dongyu Ge, Xudan Wang
Severe influenza infections are featured by acute lung injury, a syndrome of increased pulmonary microvascular permeability. A growing number of evidences have shown that influenza A virus induces cytoskeletal rearrangement and permeability increase in endothelial cells. Although miRNA's involvement in the regulation of influenza virus infection and endothelial cell (EC) function has been well documented, little is known about the miRNA profiles in influenza-infected endothelial cells. Using human umbilical vein endothelial cells (HUVECs) as cell models, the present study aims to explore the differential miRNAs in influenza virus-infected ECs and analyze their target genes involved in EC permeability regulation...
2017: PloS One
https://www.readbyqxmd.com/read/29046356/microrna-302a-suppresses-influenza-a-virus-stimulated-interferon-regulatory-factor-5-expression-and-cytokine-storm-induction
#9
Xueyuan Chen, Li Zhou, Nanfang Peng, Haisheng Yu, Mengqi Li, Zhongying Cao, Yong Lin, Xueyu Wang, Qian Li, Jun Wang, Yinglong She, Chengliang Zhu, Mengji Lu, Ying Zhu, Shi Liu
During influenza A virus (IAV) infection, cytokine storms play a vital and critical role in clinical outcomes. We have previously reported that microRNA (miR)-302c regulates IAV-induced IFN expression by targeting the 3'-UTR of nuclear factor κB (NF-κB)-inducing kinase. In the current study, we found that miR-302a, another member of the miR-302 cluster, controls the IAV-induced cytokine storm. According to results from cell-based and knockout mouse models, IAV induces a cytokine storm via interferon regulatory factor-5 (IRF-5)...
December 29, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28977879/specific-microrna-library-of-ifn-%C3%AF-on-bovine-endometrial-epithelial-cells
#10
Haichong Wu, Tao Zhang, Xiaofei Ma, Kangfeng Jiang, Gan Zhao, Changwei Qiu, Ganzhen Deng
IFN-τ is specifically secreted by the conceptus in ruminants during early pregnancy, and it plays a vital role in the immunological function of pregnancy. However, its mechanism involving microRNA (miRNA) is still not well understood. Deep sequencing was used to explore the specific miRNA library of IFN-τ on bovine endometrial epithelial cells (bEECs). The results showed that 574 known bovine miRNAs and 109 novel miRNAs were identified. We found 74 differentially expressed miRNAs, including 30 commonly expressed miRNAs in the experiment...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28654900/specific-microrna-library-of-ifn-%C3%AF-on-bovine-endometrial-epithelial-cells
#11
Haichong Wu, Tao Zhang, Xiaofei Ma, Kangfeng Jiang, Gan Zhao, Changwei Qiu, Ganzhen Deng
IFN-τ is specifically secreted by the conceptus in ruminants during early pregnancy, and it plays a vital role in the immunological function of pregnancy. However, its mechanism involving microRNA (miRNA) is still not well understood. Deep sequencing was used to explore the specific miRNA library of IFN-τ on bovine endometrial epithelial cells (bEECs). The results showed that 574 known bovine miRNAs and 109 novel miRNAs were identified. We found 74 differentially expressed miRNAs, including 30 commonly expressed miRNAs in the experiment...
June 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624201/broad-spectrum-inhibition-of-respiratory-virus-infection-by-microrna-mimics-targeting-p38-mapk-signaling
#12
Jana L McCaskill, Sarah Ressel, Andreas Alber, Jane Redford, Ultan F Power, Jürgen Schwarze, Bernadette M Dutia, Amy H Buck
The majority of antiviral therapeutics target conserved viral proteins, however, this approach confers selective pressure on the virus and increases the probability of antiviral drug resistance. An alternative therapeutic strategy is to target the host-encoded factors that are required for virus infection, thus minimizing the opportunity for viral mutations that escape drug activity. MicroRNAs (miRNAs) are small noncoding RNAs that play diverse roles in normal and disease biology, and they generally operate through the post-transcriptional regulation of mRNA targets...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28609011/the-highly-pathogenic-h5n1-influenza-a-virus-down-regulated-several-cellular-micrornas-which-target-viral-genome
#13
Rong Wang, Ying-Ying Zhang, Jian-Sheng Lu, Bing-Hui Xia, Zhi-Xin Yang, Xu-Dong Zhu, Xiao-Wei Zhou, Pei-Tang Huang
Higher and prolonged viral replication is critical for the increased pathogenesis of the highly pathogenic avian influenza (HPAI) subtype of H5N1 influenza A virus (IAV) over the lowly pathogenic H1N1 IAV strain. Recent studies highlighted the considerable roles of cellular miRNAs in host defence against viral infection. In this report, using a 3'UTR reporter system, we identified several putative miRNA target sites buried in the H5N1 virus genome. We found two miRNAs, miR-584-5p and miR-1249, that matched with the PB2 binding sequence...
November 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28448456/upregulation-of-mirna-4776-in-influenza-virus-infected-bronchial-epithelial-cells-is-associated-with-downregulation-of-nfkbib-and-increased-viral-survival
#14
Sreekumar Othumpangat, Nicole B Bryan, Donald H Beezhold, John D Noti
Influenza A virus (IAV) infection remains a significant cause of morbidity and mortality worldwide. One key transcription factor that is activated upon IAV infection is nuclear factor Kappa B (NF-κB). NF-κB regulation involves the inhibitor proteins NF-κB inhibitor beta (NFKBIB), (also known as IκB β), which form complexes with NF-κB to sequester it in the cytoplasm. In this study, microarray data showed differential expression of several microRNAs (miRNAs) on exposure to IAV. Target scan analysis revealed that miR-4776, miR-4514 and miR-4742 potentially target NFKBIB messenger RNA (mRNA)...
April 27, 2017: Viruses
https://www.readbyqxmd.com/read/28405612/microrna-125a-and-b-inhibit-a20-and-mavs-to-promote-inflammation-and-impair-antiviral-response-in-copd
#15
Alan C-Y Hsu, Kamal Dua, Malcolm R Starkey, Tatt-Jhong Haw, Prema M Nair, Kristy Nichol, Nathan Zammit, Shane T Grey, Katherine J Baines, Paul S Foster, Philip M Hansbro, Peter A Wark
Influenza A virus (IAV) infections lead to severe inflammation in the airways. Patients with chronic obstructive pulmonary disease (COPD) characteristically have exaggerated airway inflammation and are more susceptible to infections with severe symptoms and increased mortality. The mechanisms that control inflammation during IAV infection and the mechanisms of immune dysregulation in COPD are unclear. We found that IAV infections lead to increased inflammatory and antiviral responses in primary bronchial epithelial cells (pBECs) from healthy nonsmoking and smoking subjects...
April 6, 2017: JCI Insight
https://www.readbyqxmd.com/read/28392443/enhanced-immunogenicity-following-mir-155-incorporation-into-the-influenza-a-virus-genome
#16
Leonard Izzard, Daniel Dlugolenski, Yingju Xia, Meagan McMahon, Deborah Middleton, Ralph A Tripp, John Stambas
Influenza A vaccine efficacy in the elderly is generally poor and so identification of novel molecular adjuvants to improve immunogenicity is important to reduce the overall burden of disease. Short non-coding RNAs, known as microRNAs (miRNAs) are known to regulate gene expression and have the potential to influence immune responses. One such miRNA, miR-155, has been shown to modulate T and B cell development and function. We incorporated miR-155 into the influenza A virus (IAV) genome creating a self-adjuvanting 'live vaccine' with the ability to modify immunogenicity...
April 7, 2017: Virus Research
https://www.readbyqxmd.com/read/28382020/h9n2-avian-influenza-virus-protein-pb1-enhances-the-immune-responses-of-bone-marrow-derived-dendritic-cells-by-down-regulating-mir375
#17
Jian Lin, Jing Xia, Chong Z Tu, Ke Y Zhang, Yan Zeng, Qian Yang
Polymerase basic protein 1 (PB1), the catalytic core of the influenza A virus RNA polymerase complex, is essential for viral transcription and replication. Dendritic cells (DCs) possess important antigen presenting ability and a crucial role in recognizing and clearing virus. MicroRNA (miRNA) influence the development of DCs and their ability to present antigens as well as the ability of avian influenza virus (AIV) to infect host cells and replicate. Here, we studied the molecular mechanism underlying the miRNA-mediated regulation of immune function in mouse DCs...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28377766/host-genetic-background-strongly-affects-pulmonary-microrna-expression-before-and-during-influenza-a-virus-infection
#18
Matthias Preusse, Klaus Schughart, Frank Pessler
BACKGROUND: Expression of host microRNAs (miRNAs) changes markedly during influenza A virus (IAV) infection of natural and adaptive hosts, but their role in genetically determined host susceptibility to IAV infection has not been explored. We, therefore, compared pulmonary miRNA expression during IAV infection in two inbred mouse strains with differential susceptibility to IAV infection. RESULTS: miRNA expression profiles were determined in lungs of the more susceptible strain DBA/2J and the less susceptible strain C57BL/6J within 120 h post infection (hpi) with IAV (H1N1) PR8...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28368362/sus-scrofa-mir-204-and-mir-4331-negatively-regulate-swine-h1n1-2009-influenza-a-virus-replication-by-targeting-viral-ha-and-ns-respectively
#19
Shishuo Zhang, Ruifang Wang, Huijuan Su, Biaoxiong Wang, Suolang Sizhu, Zhixin Lei, Meilin Jin, Huanchun Chen, Jiyue Cao, Hongbo Zhou
The prevalence of swine pandemic H1N1/2009 influenza A virus (SIV-H1N1/2009) in pigs has the potential to generate novel reassortant viruses, posing a great threat to human health. Cellular microRNAs (miRNAs) have been proven as promising small molecules for regulating influenza A virus replication by directly targeting viral genomic RNA. In this study, we predicted potential Sus scrofa (ssc-, swine) miRNAs targeting the genomic RNA of SIV-H1N1/2009 by RegRNA 2.0, and identified ssc-miR-204 and ssc-miR-4331 to target viral HA and NS respectively through dual-luciferase reporter assays...
April 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28282445/endothelial-cell-tropism-is-a-determinant-of-h5n1-pathogenesis-in-mammalian-species
#20
Smanla Tundup, Matheswaran Kandasamy, Jasmine T Perez, Nacho Mena, John Steel, Tamas Nagy, Randy A Albrecht, Balaji Manicassamy
The cellular and molecular mechanisms underpinning the unusually high virulence of highly pathogenic avian influenza H5N1 viruses in mammalian species remains unknown. Here, we investigated if the cell tropism of H5N1 virus is a determinant of enhanced virulence in mammalian species. We engineered H5N1 viruses with restricted cell tropism through the exploitation of cell type-specific microRNA expression by incorporating microRNA target sites into the viral genome. Restriction of H5N1 replication in endothelial cells via miR-126 ameliorated disease symptoms, prevented systemic viral spread and limited mortality, despite showing similar levels of peak viral replication in the lungs as compared to control virus-infected mice...
March 2017: PLoS Pathogens
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