In this issue of Cell Host & Microbe, Millman et al. use bioinformatic and genetic approaches to discover 21 novel antiviral immune systems in prokaryotes. Remarkably, many of these systems bear homology to components of the human innate immune system, suggesting an evolutionary tie between prokaryotic and eukaryotic antiviral defenses.
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http://dx.doi.org/10.1016/j.chom.2022.10.009 | DOI Listing |
Vet Res
January 2025
Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
Porcine epidemic diarrhoea virus (PEDV) is an enteric pathogen that causes acute diarrhoea, dehydration and high mortality rates in suckling pigs. Tripartite motif 8 (TRIM8) has been shown to play multiple roles in the host's defence against viral infections. However, the functions of TRIM8 in regulating PEDV infection are still not well understood.
View Article and Find Full Text PDFRespir Res
January 2025
Department of Pediatrics, David Geffen School of Medicine, UCLA Children's Discovery and Innovation Institute, Mattel Children's Hospital UCLA, UCLA, Los Angeles, CA, 90095, USA.
Background: Many respiratory viruses attack the airway epithelium and cause a wide spectrum of diseases for which we have limited therapies. To date, a few primary human stem cell-based models of the proximal airway have been reported for drug discovery but scaling them up to a higher throughput platform remains a significant challenge. As a result, most of the drug screening assays for respiratory viruses are performed on commercial cell line-based 2D cultures that provide limited translational ability.
View Article and Find Full Text PDFBiochem Biophys Res Commun
January 2025
Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China; Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China. Electronic address:
Bacterial adaptive immunity, driven by CRISPR-Cas systems, protects against foreign nucleic acids from mobile genetic elements (MGEs), like bacteriophages. The type I-E CRISPR-Cas system employs the Cascade (CRISPR-associated complex for antiviral defense) complex for target DNA cleavage, guided by crRNA. Anti-CRISPR (Acr) proteins, such as AcrIE7, counteract this defense by inhibiting Cascade activity.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City & Southwest University, Biological Science Research Center, Southwest University, Chongqing, China; Key Laboratory for Germplasm Creation in Upper Reaches of the Yangtze River, Ministry of Agriculture and Rural Affairs, Chongqing, China. Electronic address:
N6-methyladenosine (m6A) is the most prevalent internal modification on mRNA and plays critical roles in various biological processes including virus infection. It has been shown that m6A methylation is able to regulate virus proliferation and host innate immunity in mammals and plants, however, this antiviral defense in insects is largely unknown. Here we investigated function of m6A and its associated methyltransferases in nucleopolyhedrovirus (BmNPV) infection in silkworm.
View Article and Find Full Text PDFFront Cell Dev Biol
December 2024
Biomedical Research Institute of Southern California, Oceanside, CA, United States.
Interferon types-I/II (IFN-αβ/γ) secretions are well-established antiviral host defenses. The human immunodeficiency virus (HIV) particles are known to prevail following targeted cellular interferon secretion. CD4 T-lymphocytes are the primary receptor targets for HIV entry, but the virus has been observed to hide (be latent) successfully in these cells through an alternate entry route via interactions with LFA1.
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