The MAVS protein plays a critical role in the assembly of an antiviral signaling complex on mitochondrial membranes. Hou et al. (2011) now report that virus infection induces a conformational change in MAVS, leading to the prion-like formation of functional self-aggregates that provide a sensitive trigger for antiviral signaling.
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http://dx.doi.org/10.1016/j.cell.2011.07.018 | DOI Listing |
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi
January 2025
Department of Pathogen Biology and Immunology, Kunming Medical University, Kunming 650500, China. *Corresponding authors, E-mail:
The innate immune response is the first line of defense for the host against viral infections. Targeted degradation of pathogenic microorganisms through autophagy, in conjunction with pattern recognition receptors synergistically inducing the production of interferon (IFN), constitutes an important pathway for the body to resist viral infections. Rubicon, a Run domain Beclin 1-interacting and cysteine-rich domain protein, has an inhibitory effect on autophagy and IFN production.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China; Institute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Animal Virology of Ministry of Agriculture, Center for Veterinary Sciences, Zhejiang University, Hangzhou, China; Hainan Institute of Zhejiang University, Sanya, China; Zhejiang University-Xinchang Joint Innovation Centre (TianMu Laboratory), Gaochuang Hi-Tech Park, Xinchang, China. Electronic address:
Viral infections trigger inflammasome-mediated caspase-1 activation. Nevertheless, limited understanding exists regarding how viruses use the active caspase-1 to evade host immune response. Here, we use porcine epidemic diarrhea virus (PEDV) as a model of coronaviruses (CoVs) to illustrate the intricate regulation of CoVs to combat IFN-I signaling and pyroptosis.
View Article and Find Full Text PDFVirology
January 2025
NHC Key Laboratory of Systems Biology of Pathogens and Christophe Merieux Laboratory, Institute of Pathogen Biology, Chinese Academy of Medical Sciences, Beijing, China; National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, Jiangsu, 215123, China. Electronic address:
The influenza A virus evades the host innate immune response to establish infection by inhibiting RIG-I activation through its nonstructural protein 1 (NS1). Here, we reported that receptor-transporting protein 4 (RTP4), an interferon-stimulated gene (ISG), targets NS1 to inhibit influenza A virus infection. Depletion of RTP4 significantly increased influenza A virus multiplication, while NS1-deficient viruses were unaffected.
View Article and Find Full Text PDFVirology
January 2025
College of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, PR China. Electronic address:
Porcine reproductive and respiratory syndrome virus (PRRSV) is a viral infectious disease that can cause infection in pigs of different ages. The condition known as porcine reproductive and respiratory syndrome poses a serious risk to the world's pig business and results in significant financial losses. Fuzhengjiedu San (FZJDS) is a traditional Chinese medicine compound, the main components include:Radix Isatidis, Radix Astragali and Herba Epimedii.
View Article and Find Full Text PDFNat Prod Res
January 2025
Institute of Biopharmaceutical and Health Engineering, State Key Laboratory of Chemical Oncogenomics, Shenzhen Key Laboratory of Gene and Antibody Therapy, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, China.
Sophaline B (SPB), extracted from the seeds of L., is a natural bioactive compound that effectively exerts antiviral activities against the hepatitis B virus. This is the first study to demonstrate that SPB exerts anti-tumor effects on NSCLC by inducing pyroptosis and autophagy.
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