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Total 371 results found since Jan 2013.

Chinese giant salamander Bcl-w: An inhibitory role in iridovirus-induced mitochondrial apoptosis and virus replication
In this study, we characterized for the first time an amphibian Bcl-w from Chinese giant salamander Andrias davidianus (AdBcl-w), and its function and regulatory mechanism during GSIV infection were investigated. AdBcl-w possesses the conserved structural features of Bcl-w and shares 35-54% sequence identities with other Bcl-w. mRNA expression of AdBcl-w was most abundant in liver and muscle. The AdBcl-w mRNA expression was regulated during GSIV infection. Western blotting assays revealed that the level of Bcl-w protein was downregulated markedly as the infection progresses. Confocal microscopy showed that overexpressed Ad...
Source: Virus Research - August 19, 2023 Category: Virology Authors: Yiqun Li Mingyang Xue Yanlin Dai Yixing Xie Ying Wei Cheng Wang Mingzhu Tian Yuding Fan Nan Jiang Chen Xu Wenzhi Liu Yan Meng Yong Zhou Source Type: research

Chinese Giant Salamander Bcl-w:An Inhibitory Role in Iridovirus-Induced Mitochondrial Apoptosis and Virus Replication
In this study, we characterized for the first time an amphibian Bcl-w from Chinese giant salamander Andrias davidianus (AdBcl-w), and its function and regulatory mechanism during GSIV infection were investigated. AdBcl-w possesses the conserved structural features of Bcl-w and shares 35% - 54% sequence identities with other Bcl-w. mRNA expression of AdBcl-w was most abundant in liver and muscle. The AdBcl-w mRNA expression was regulated during GSIV infection. Western blotting assays revealed that the level of Bcl-w protein was downregulated markedly as the infection progresses. Confocal microscopy showed that overexpressed...
Source: Virus Research - August 19, 2023 Category: Virology Authors: Yiqun Li Mingyang Xue Yanlin Dai Yixing Xie Ying Wei Cheng Wang Mingzhu Tian Yuding Fan Nan Jiang Chen Xu Wenzhi Liu Yan Meng Yong Zhou Source Type: research

Amino acids 1811-1960 of myosin heavy chain 9 is involved in murine gammaherpesvirus 68 infection
Virology. 2023 Jul 24;587:109849. doi: 10.1016/j.virol.2023.109849. Online ahead of print.ABSTRACTMyosin heavy chain 9 (MYH9) has been identified as a crucial factor in gammaherpesvirus infection. Murine gammaherpesvirus 68 (MHV-68) was used as an appropriate viral model for investigating gammaherpesviruses in vivo and developing antiviral treatments. However, the roles of MYH9 in MHV-68 infection have not been documented. In the study, the relationship between the expression of MYH9 and MHV-68 infection and MYH9 as the antiviral target were analyzed. The results revealed that MYH9 was enriched on the cell surface and co-l...
Source: Virology - July 29, 2023 Category: Virology Authors: Ximeng Han Jordan J Clark Parul Sharma Eleanor G Bentley Anja Kipar Mohammed Alsayer Xiaolei Ren Amy Robinson Sondus Alaidarous Yang Mu Yani Sun Julian A Hiscox En-Min Zhou James P Stewart Qin Zhao Source Type: research

Viruses, Vol. 15, Pages 1629: Multiple Porcine Innate Immune Signaling Pathways Are Involved in the Anti-PEDV Response
In this study, we observed that various porcine innate immune signaling adaptors are involved in anti-PEDV (AJ1102-like strain) activity in transfected Vero cells. Among these, TRIF and MAVS showed the strongest anti-PEDV activity. The endogenous TRIF, MAVS, and STING were selected for further examination of anti-PEDV activity. Agonist stimulation experiments showed that TRIF, MAVS, and STING signaling all have obvious anti-PEDV activity. The siRNA knockdown assay showed that TRIF, MAVS, and STING are also all involved in anti-PEDV response, and their remarkable effects on PEDV replication were confirmed in TRIF&mi...
Source: Viruses - July 26, 2023 Category: Virology Authors: Youwen Zhang Yulin Xu Sen Jiang Shaohua Sun Jiajia Zhang Jia Luo Qi Cao Wanglong Zheng Fran çois Meurens Nanhua Chen Jianzhong Zhu Tags: Article Source Type: research

Novel siRNA therapeutics demonstrate multi-variant efficacy against SARS-CoV-2
Antiviral Res. 2023 Jul 19:105677. doi: 10.1016/j.antiviral.2023.105677. Online ahead of print.ABSTRACTSevere Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a respiratory virus that causes COVID-19 disease, with an estimated global mortality of approximately 2%. While global response strategies, which are predominantly reliant on regular vaccinations, have shifted from zero COVID to living with COVID, there is a distinct lack of broad-spectrum direct acting antiviral therapies that maintain efficacy across evolving SARS-CoV-2 variants of concern. This is of most concern for immunocompromised and immunosuppressed ...
Source: Antiviral Research - July 21, 2023 Category: Virology Authors: Ellen Bowden-Reid Scott Ledger Yuan Zhang Francesca Di Giallonardo Anupriya Aggarwal Alberto Ospina Stella Anouschka Akerman Vanessa Milogiannakis Gregory Walker William Rawlinson Stuart Turville Anthony D Kelleher Chantelle Ahlenstiel Source Type: research

Viruses, Vol. 15, Pages 1457: ICP4-Associated Activation of Rap1b Facilitates Herpes Simplex Virus Type I (HSV-1) Infection in Human Corneal Epithelial Cells
ai Ma The strong contribution of RAS-related protein 1b (Rap1b) to cytoskeleton remodeling determines intracellular and extracellular physiological activities, including the successful infection of viruses in permissive cells, but its role in the HSV-1 life cycle is still unclear. Here, we demonstrated that the HSV-1 immediate early (IE) gene ICP4 inhibits protein kinase A (PKA) phosphorylation to induce Rap1b-activation-mediated viral infection. Rap1b activation and membrane enrichment begin at the early stage of HSV-1 infection and remain active during the proliferation period of the virus. Treating the cells with Ra...
Source: Viruses - June 27, 2023 Category: Virology Authors: Beibei Zhang Juntao Ding Zhenghai Ma Tags: Article Source Type: research

Activation of p53-regulated pro-survival signals and hypoxia-independent mitochondrial targeting of TIGAR by human papillomavirus E6 oncoproteins
Virology. 2023 May 22;585:1-20. doi: 10.1016/j.virol.2023.05.004. Online ahead of print.ABSTRACTThe high-risk subtype human papillomaviruses (hrHPVs) infect and oncogenically transform basal epidermal stem cells associated with the development of squamous-cell epithelial cancers. The viral E6 oncoprotein destabilizes the p53 tumor suppressor, inhibits p53 K120-acetylation by the Tat-interacting protein of 60 kDa (TIP60, or Kat5), and prevents p53-dependent apoptosis. Intriguingly, the p53 gene is infrequently mutated in HPV + cervical cancer clinical isolates which suggests a possible paradoxical role for this gatekeeper i...
Source: Virology - May 31, 2023 Category: Virology Authors: Lacin Yapindi Tetiana Bowley Nick Kurtaneck Rachel L Bergeson Kylie James Jillian Wilbourne Carolyn K Harrod Brenda Y Hernandez Brooke M Emerling Courtney Yates Robert Harrod Source Type: research

Viruses, Vol. 15, Pages 1112: A Chemical Proteomics Approach to Discover Regulators of Innate Immune Signaling
hnson Innate immune pathways are tightly regulated to balance an appropriate response to infectious agents and tolerable levels of inflammation. Dysregulation of innate immune pathways can lead to severe autoinflammatory disorders or susceptibility to infections. Here, we aimed to identify kinases in common cellular pathways that regulate innate immune pathways by combining small-scale kinase inhibitor screening with quantitative proteomics. We found that inhibitors of kinases ATM, ATR, AMPK, and PLK1 reduced the induction of interferon-stimulated gene expression in response to innate immune pathway activation by poly(...
Source: Viruses - May 3, 2023 Category: Virology Authors: Andrew P. Kurland Boris Bonaventure Jeffrey R. Johnson Tags: Article Source Type: research

Targeting HDAC11 activity by FT895 Restricts EV71 Replication
Virus Res. 2023 Apr 4:199108. doi: 10.1016/j.virusres.2023.199108. Online ahead of print.ABSTRACTEnterovirus 71 (EV71) infection mainly causes hand, foot, and mouth disease (HFMD) and remains a serious public health problem to the children under the age of 5. Until now, there is no specific drug to treat HFMD in clinical and there is an urgent to explore the new target and the new drug to address clinical challenges. At present, we found histone deacetylase 11 (HDAC11) involves in supporting EV71 replication. We also used HDAC11 siRNA and an HDAC11 inhibitor FT895 to downregulate HDAC11 expression and found that targeting ...
Source: Virus Research - April 6, 2023 Category: Virology Authors: Hong Xie Enhui Yang Chaoyong Wang Chunyan Peng Lianfu Ji Source Type: research