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https://www.readbyqxmd.com/read/28224919/characteristics-and-regulatory-pathway-of-the-prupesep1-sepallata-gene-during-ripening-and-softening-in-peach-fruits
#1
Jinjin Li, Fang Li, Ming Qian, Mingyu Han, Hangkong Liu, Dong Zhang, Juanjuan Ma, Caiping Zhao
SEPALLATA genes are members of a subfamily of MADS-box transcription factors, and have essential roles in floral organ development and fruit ripening. In this study, the PrupeSEP1 gene was cloned from peach flesh. Its deduced amino acid sequence was very similar to that of MdMADS8 and MdMADS9 in apple and MADS-RIN-like in strawberry. During storage of melting flesh (MF) peach, the pattern of SEP1 expression was similar to that of ethylene biosynthesis and ethylene signal transduction-related gene expression (EIN2 and ETR2)...
April 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28222782/identification-of-mirna-mrna-crosstalk-in-cd4-t-cells-during-hiv-1-infection-by-integrating-transcriptome-analyses
#2
Qibin Liao, Jin Wang, Zenglin Pei, Jianqing Xu, Xiaoyan Zhang
BACKGROUND: HIV-1-infected long-term nonprogressors (LTNPs) are characterized by infection with HIV-1 more than 7-10 years, but keeping high CD4(+) T cell counts and low viral load in the absence of antiretroviral treatment, while loss of CD4(+) T cells and high viral load were observed in the most of HIV-1-infected individuals with chronic progressors (CPs) However, the mechanisms of different clinical outcomes in HIV-1 infection needs to be further resolved. METHODS: To identify microRNAs (miRNAs) and their target genes related to distinct clinical outcomes in HIV-1 infection, we performed the integrative transcriptome analyses in two series GSE24022 and GSE6740 by GEO2R, R, TargetScan, miRDB, and Cytoscape softwares...
February 21, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28222762/the-hippo-component-yap-localizes-in-the-nucleus-of-human-papilloma-virus-positive-oropharyngeal-squamous-cell-carcinoma
#3
Faisal Alzahrani, Leanne Clattenburg, Shanmugam Muruganandan, Martin Bullock, Kaitlyn MacIsaac, Michael Wigerius, Blair A Williams, M Elise R Graham, Matthew H Rigby, Jonathan R B Trites, S Mark Taylor, Christopher J Sinal, James P Fawcett, Robert D Hart
BACKGROUND: HPV infection causes cervical cancer, mediated in part by the degradation of Scribble via the HPV E6 oncoprotein. Recently, Scribble has been shown to be an important regulator of the Hippo signaling cascade. Deregulation of the Hippo pathway induces an abnormal cellular transformation, epithelial to mesenchymal transition, which promotes oncogenic progression. Given the recent rise in oropharyngeal HPV squamous cell carcinoma we sought to determine if Hippo signaling components are implicated in oropharyngeal squamous cell carcinoma...
February 22, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28222748/identification-of-host-cellular-proteins-that-interact-with-the-m-protein-of-a-highly-pathogenic-porcine-reproductive-and-respiratory-syndrome-virus-vaccine-strain
#4
Qian Wang, Yanwei Li, Hong Dong, Li Wang, Jinmei Peng, Tongqing An, Xufu Yang, Zhijun Tian, Xuehui Cai
BACKGROUND: The highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) continues to pose one of the greatest threats to the swine industry. M protein is the most conserved and important structural protein of PRRSV. However, information about the host cellular proteins that interact with M protein remains limited. METHODS: Host cellular proteins that interact with the M protein of HP-PRRSV were immunoprecipitated from MARC-145 cells infected with PRRSV HuN4-F112 using the M monoclonal antibody (mAb)...
February 22, 2017: Virology Journal
https://www.readbyqxmd.com/read/28222744/herpes-simplex-virus-1-infection-dampens-the-immediate-early-antiviral-innate-immunity-signaling-from-peroxisomes-by-tegument-protein-vp16
#5
Chunfu Zheng, Chenhe Su
BACKGROUND: Herpes simplex virus 1 (HSV-1) is an archetypal member of the alphaherpesvirus subfamily with a large genome encoding over 80 proteins, many of which play a critical role in virus-host interactions and immune modulation. Upon viral infections, the host cells activate innate immune responses to restrict their replications. Peroxisomes, which have long been defined to regulate metabolic activities, are reported to be important signaling platforms for antiviral innate immunity...
February 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28222204/comparative-transcriptome-and-potential-antiviral-signaling-pathways-analysis-of-the-gills-in-the-red-swamp-crayfish-procambarus-clarkii-infected-with-white-spot-syndrome-virus-wssv
#6
Zhi-Qiang Du, Yan-Hui Jin
Red swamp crayfish is an important model organism for research of the invertebrate innate immunity mechanism. Its excellent disease resistance against bacteria, fungi, and viruses is well-known. However, the antiviral mechanisms of crayfish remain unclear. In this study, we obtained high-quality sequence reads from normal and white spot syndrome virus (WSSV)-challenged crayfish gills. For group normal (GN), 39,390,280 high-quality clean reads were randomly assembled to produce 172,591 contigs; whereas, 34,011,488 high-quality clean reads were randomly assembled to produce 182,176 contigs for group WSSV-challenged (GW)...
February 20, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28222174/slmapk3-enhances-tolerance-to-tomato-yellow-leaf-curl-virus-tylcv-by-regulating-salicylic-acid-and-jasmonic-acid-signaling-in-tomato-solanum-lycopersicum
#7
Yunzhou Li, Lei Qin, Jingjing Zhao, Tayeb Muhammad, Hehe Cao, Hailiang Li, Yan Zhang, Yan Liang
Several recent studies have reported on the role of mitogen-activated protein kinase (MAPK3) in plant immune responses. However, little is known about how MAPK3 functions in tomato (Solanum lycopersicum L.) infected with tomato yellow leaf curl virus (TYLCV). There is also uncertainty about the connection between plant MAPK3 and the salicylic acid (SA) and jasmonic acid (JA) defense-signaling pathways. The results of this study indicated that SlMAPK3 participates in the antiviral response against TYLCV. Tomato seedlings were inoculated with TYLCV to investigate the possible roles of SlMAPK1, SlMAPK2, and SlMAPK3 against this virus...
2017: PloS One
https://www.readbyqxmd.com/read/28216424/an-atypical-thioredoxin-imparts-early-resistance-to-sugarcane-mosaic-virus-in-maize
#8
Qingqing Liu, Huanhuan Liu, Yangqing Gong, Yongfu Tao, Lu Jiang, Weiliang Zuo, Qin Yang, Jianrong Ye, Jinsheng Lai, Jianyu Wu, Thomas Lübberstedt, Mingliang Xu
Sugarcane mosaic virus (SCMV) disease causes substantial losses of grain yield and forage biomass in susceptible maize worldwide. A major quantitative trait locus, Scmv1, has been identified to impart strong resistance to SCMV at early infection stage. Here, we demonstrate that ZmTrxh, encoding an atypical h-type thioredoxin, is the causal gene at Scmv1, and that its transcript abundance correlated strongly with maize resistance to SCMV. ZmTrxh alleles, whether they are resistant or susceptible, share the identical coding/proximal promoter regions, but vary in the upstream regulatory regions...
February 12, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28214886/adenovirus-vector-harboring-the-hbcag-and-tripeptidyl-peptidase-ii-genes-induces-potent-cellular-immune-responses-in-vivo
#9
Quanhui Tan, Siyuan Ma, Jianjun Hu, Xiaohua Chen, Yongsheng Yu, Zhenghao Tang, Guoqin Zang
BACKGROUND: Chronic hepatitis B virus (HBV) infection is associated with a weak but specific cellular immune response of the host to HBV. Tripeptidyl peptidaseⅡ (TPPⅡ), an intracellular macromolecule and proteolytic enzyme, plays an important complementary and compensatory role for the proteasome during viral protein degradation and major histocompatibility complex class I antigen presentation by inducing a specific cellular immune response in vivo. Based on a previous study, we aimed to explore the role of MHC class I antigen presentation in vivo and the mechanisms that may be involved...
January 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214858/hepatitis-b-virus-core-antigen-stimulates-il-6-expression-via-p38-erk-and-nf-%C3%AE%C2%BAb-pathways-in-hepatocytes
#10
Zhi Chen, Yang-Xia Li, Hai-Jing Fu, Yan-Li Ren, Ling Zou, Shi-Zhen Shen, Ping Chen, Ting Sun, Chun-Hong Huang
BACKGROUND: Hepatitis B virus (HBV) causes both acute and chronic liver injury. Viral proteins are involved in the pathological progress. Hepatitis B core antigen (HBcAg), a component of viral nucleocapsid, is not only essential for HBV lifecycle, but also exhibits strong immunogenicity. The cytoplasmic location of HBcAg in liver biopsy is associated with liver injury and inflammation, but the exact mechanisms remain to be elaborated. METHODS: Huh7, SMMC-7721 and L-02 cells were transfected with pEGFP-N1-HBcAg to establish an intracellular HBcAg expression model...
January 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28209758/atorvastatin-decreases-hbx-induced-phospho-akt-in-hepatocytes-via-p2x-receptors
#11
Aram Ghalali, Javier Martin-Renedo, Johan Hogberg, Ulla Stenius
: Hepatocellular carcinoma (HCC) is rated as the fifth most common malignancy and third in cancer related deaths worldwide. Statins, HMG-CoA reductase inhibitors, are potent cholesterol lowering drugs and recent epidemiological evidence suggests that statins prevent aggressive HCC development. Previous experiments revealed that statins downregulate phosphorylated Akt (pAkt). Here, it is demonstrated that atorvastatin decreases nuclear pAkt levels in pancreatic and lung cancer cell lines within minutes and this rapid effect is mediated by the purinergic P2X receptors...
February 16, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28209510/microarray-and-transcription-binding-site-analysis-reveals-that-melatonin-attenuates-immune-responses-and-modulates-actin-rearrangement-in-macrophages
#12
Miki Kadena, Yutaro Kumagai, Alexis Vandenbon, Hitomi Matsushima, Haruka Fukamachi, Noboru Maruta, Hideo Kataoka, Takafumi Arimoto, Hirobumi Morisaki, Takahiro Funatsu, Hirotaka Kuwata
Melatonin produced by the pineal gland suppresses inflammatory responses in innate immune cells. However, the mechanism of how melatonin affects inflammatory gene regulation remains unclear. Here we performed comprehensive microarray analysis combined with transcription factor binding site (TFBS) analysis using LPS-induced mouse macrophages to investigate the effect of melatonin treatment. The results showed that melatonin preferentially downregulated interferon regulatory factors (IRFs) and signal transducers and activators of transcription (STATs) related signaling...
February 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28204810/htlv-1-basic-leucine-zipper-factor-downregulates-cyclin%C3%A2-d1-expression-via-interactions-with-nf-%C3%AE%C2%BAb
#13
Yunyun Ma, Bo Zhang, Dong Wang, Lili Qian, Xianmei Song, Xueyin Wang, Chaokuan Yang, Guoqiang Zhao
Human T cell leukemia virus type 1 (HTLV-1) is an oncogenic retrovirus. It can cause adult T cell leukemia (ATL) and other diseases. The HTLV-1 basic leucine zipper (bZIP) factor (HBZ), which is encoded by the minus-strand of the provirus, is expressed in all cases of ATL and involved in T cell proliferation. However, the exact mechanism underlying its growth-promoting activity is poorly understood. Herein, we demonstrated that HBZ suppressed cyclin D1 expression by inhibiting the nuclear factor (NF)-κB signaling pathway...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28202761/the-long-noncoding-rna-neat1-exerts-anti-hantaviral-effects-by-acting-as-a-positive-feedback-for-rig-i-signaling
#14
Hongwei Ma, Peijun Han, Wei Ye, Hesong Chen, Xuyang Zheng, Linfeng Cheng, Liang Zhang, Lan Yu, Xing'an Wu, Zhikai Xu, Yingfeng Lei, Fanglin Zhang
Hantavirus infection, which causes zoonotic diseases with a high mortality rate in humans, has long been a global public health concern. Over the past decades, accumulating evidence suggests that long noncoding RNAs (lncRNAs) play key regulatory roles in innate immunity. However, the involvement of host lncRNAs in hantaviral control remains uncharacterized. In this study, we identified the lncRNA, NEAT1, as a vital antiviral modulator. NEAT1 was dramatically upregulated after Hantaan virus (HTNV) infection, whereas its downregulation in vitro or in vivo delayed host innate immune responses and aggravated HTNV replication...
February 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28202754/jak-stat-signaling-pathways-and-inhibitors-affect-reversion-of-envelope-mutated-hiv-1
#15
Yudong Quan, Hongtao Xu, Yingshan Han, Thibault Mesplède, Mark A Wainberg
HIV can spread by both cell-free and cell-to-cell transmission. Here, we show that numerous of the amino acid changes in Env that are close to the CD4 binding pocket can affect HIV replication. We generated a number of mutant viruses that were unable to infect T cells as cell-free viruses but were nevertheless able to infect certain T cell lines as cell-associated viruses, followed by reversion to wild type. However, the activation of JAK-STAT signaling pathways caused inhibition of such cell-to-cell infection as well as the reversion of multiple HIV Env mutants that displayed differences in ability to bind to the CD4 receptor...
February 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28195391/rig-i-is-a-key-antiviral-interferon-stimulated-gene-against-hepatitis-e-virus-dispensable-of-interferon-production
#16
Lei Xu, Wenshi Wang, Yunlong Li, Xinying Zhou, Yuebang Yin, Yijin Wang, Robert A de Man, Luc J W van der Laan, Fen Huang, Nassim Kamar, Maikel P Peppelenbosch, Qiuwei Pan
: Interferons (IFNs) are broad antiviral cytokines that exert their function by inducing the transcription of hundreds of interferon-stimulated genes (ISGs). However, little is known about the antiviral potential of these cellular effectors on hepatitis E virus (HEV) infection, the leading cause of acute hepatitis globally. In this study, we profiled the antiviral potential of a panel of important human ISGs on HEV replication in cell culture models by overexpression of individual ISG...
February 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28195157/mitogen-activated-protein-kinases-mapks-regulate-il-6-over-production-during-concomitant-influenza-virus-and-staphylococcus-aureus-infection
#17
Carolin Klemm, Christin Bruchhagen, Andre van Krüchten, Silke Niemann, Bettina Löffler, Georg Peters, Stephan Ludwig, Christina Ehrhardt
Bacterial super-infections are a major complication of influenza virus (IV) infections and often lead to severe pneumonia. One hallmark of IV-associated Staphylococcus aureus (S. aureus) infection is rapid progression to a serious disease outcome. Changes in immune and inflammatory host responses increase morbidity and complicate efficient therapy. A key player during inflammation is the multifunctional cytokine IL-6. Although increased IL-6 levels have been observed after severe disease upon IV and/or bacterial super-infection, the underlying molecular mechanisms still remain to be elucidated...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28195035/pre-s2-mutant-induced-mammalian-target-of-rapamycin-signal-pathways-as-potential-therapeutic-targets-for-hepatitis-b-virus-associated-hepatocellular-carcinoma
#18
Chiao-Fang Teng, Han-Chieh Wu, Woei-Cherng Shyu, Long-Bin Jeng, Ih-Jen Su
Chronic hepatitis B virus (HBV) infection is a major risk factor for hepatocellular carcinoma (HCC). Pre-S2 mutant represents an HBV oncoprotein that is accumulated in the endoplasmic reticulum (ER) and manifests as type II ground glass hepatocytes (GGHs). Pre-S2 mutant can induce ER stress and initiate multiple ER stress-dependent or -independent cellular signal pathways, leading to growth advantage of type II GGH. Importantly, the mammalian target of rapamycin (mTOR) signal pathways are consistently activated throughout the liver tumorigenesis in pre-S2 mutant transgenic mice and in human HCC tissues, leading to hepatocyte proliferation, metabolic disorders, and HCC tumorigenesis...
February 14, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28194372/mir-34b-5p-suppresses-melanoma-differentiation-associated-gene-5-mda5-signaling-pathway-to-promote-avian-leukosis-virus-subgroup-j-alv-j-infected-cells-proliferaction-and-alv-j-replication
#19
Zhenhui Li, Qingbin Luo, Haiping Xu, Ming Zheng, Bahareldin Ali Abdalla, Min Feng, Bolin Cai, Xiaocui Zhang, Qinghua Nie, Xiquan Zhang
Avian leukosis virus subgroup J (ALV-J) is an oncogenic retrovirus that has a similar replication cycle to multiple viruses and therefore can be used as a model system for viral entry into host cells. However, there are few reports on the genes or microRNAs (miRNAs) that are responsible for the replication of ALV-J. Our previous miRNA and RNA sequencing data showed that the expression of miR-34b-5p was significantly upregulated in ALV-J-infected chicken spleens compared to non-infected chicken spleens, but melanoma differentiation-associated gene 5 (MDA5) had the opposite expression pattern...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28194021/type-i-ifn-augments-il-27-dependent-trim25-expression-to-inhibit-hbv-replication
#20
Guangyun Tan, Qingfei Xiao, Hongxiao Song, Feng Ma, Fengchao Xu, Di Peng, Na Li, Xiaosong Wang, Junqi Niu, Pujun Gao, F Xiao-Feng Qin, Genhong Cheng
Hepatitis B virus (HBV) can cause chronic hepatitis B, which may lead to cirrhosis and liver cancer. Type I interferon (IFN) is an approved drug for the treatment of chronic hepatitis B. However, the fundamental mechanisms of antiviral action by type I IFN and the downstream signaling pathway are unclear. TRIM25 is an IFN-stimulated gene (ISG) that has an important role in RIG-I ubiquitination and activation. Whether TRIM25 is induced in liver cells by type I IFN to mediate anti-HBV function remains unclear...
February 13, 2017: Cellular & Molecular Immunology
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