Results 21 to 30 of about 70,871 (236)

Selective Autophagy Receptors in Antiviral Defense

open access: yesTrends in Microbiology, 2021
Autophagy ensures the degradation of cytosolic substrates by the lysosomal pathway. Cargoes destined to be eliminated are confined within double-membrane vesicles called autophagosomes, prior to fusion with endolysosomal vacuoles. Autophagy receptors selectively interact with cargoes and route them to elongating autophagic membranes, a process referred
Viret, Christophe   +4 more
openaire   +5 more sources

Virophages and retrotransposons colonize the genomes of a heterotrophic flagellate

open access: yeseLife, 2021
Virophages can parasitize giant DNA viruses and may provide adaptive anti-giant virus defense in unicellular eukaryotes. Under laboratory conditions, the virophage mavirus integrates into the nuclear genome of the marine flagellate Cafeteria burkhardae ...
Thomas Hackl   +4 more
doaj   +1 more source

Antiviral RNAi in Insects and Mammals: Parallels and Differences

open access: yesViruses, 2019
The RNA interference (RNAi) pathway is a potent antiviral defense mechanism in plants and invertebrates, in response to which viruses evolved suppressors of RNAi.
Susan Schuster   +2 more
doaj   +1 more source

What Are the Functional Roles of Piwi Proteins and piRNAs in Insects?

open access: yesInsects, 2023
Research on Piwi proteins and piRNAs in insects has focused on three experimental models: oogenesis and spermatogenesis in Drosophila melanogaster, the antiviral response in Aedes mosquitoes and the molecular analysis of primary and secondary piRNA ...
Dulce Santos   +5 more
doaj   +1 more source

Regional Differences in Airway Epithelial Cells Reveal Tradeoff between Defense against Oxidative Stress and Defense against Rhinovirus

open access: yesCell Reports, 2018
Summary: Rhinovirus is a leading cause of acute respiratory infections and asthma attacks, but infections are also frequently cleared from the nasal mucosa without causing symptoms.
Valia T. Mihaylova   +7 more
doaj   +1 more source

Countering Counter-Defense to Antiviral RNAi

open access: yesTrends in Microbiology, 2020
RNA interference (RNAi) is a powerful host defense mechanism against viruses. As a counter-defense, many viruses encode suppressors of RNAi, which - in plants - has provoked counter-counter-defense strategies. Recently, a mechanism was proposed in Drosophila (Zhang et al.) wherein a long noncoding RNA senses a virus-encoded RNAi suppressor to activate ...
Betting, V., Rij, R.P. van
openaire   +4 more sources

Honey Bee Viruses, Colony Health, and Antiviral Defense

open access: yesProceedings, 2020
Honey bee colony losses are influenced by multiple abiotic and biotic factors, including viruses. To investigate the effects of RNA viruses on honey bees, we infected bees with a model virus (Sindbis-GFP) in the presence or absence of double-stranded RNA
Katie F. Daughenbaugh   +4 more
doaj   +1 more source

Defense Mechanisms against Viral Infection in Drosophila: RNAi and Non-RNAi

open access: yesViruses, 2018
RNAi is considered a major antiviral defense mechanism in insects, but its relative importance as compared to other antiviral pathways has not been evaluated comprehensively.
Luc Swevers, Jisheng Liu, Guy Smagghe
doaj   +1 more source

Virus and dsRNA-triggered transcriptional responses reveal key components of honey bee antiviral defense

open access: yesScientific Reports, 2017
Recent high annual losses of honey bee colonies are associated with many factors, including RNA virus infections. Honey bee antiviral responses include RNA interference and immune pathway activation, but their relative roles in antiviral defense are not ...
Laura M. Brutscher   +2 more
doaj   +1 more source

Analysis of the Involvement of an Inducible Arabidopsis RNA-Dependent RNA Polymerase in Antiviral Defense

open access: yesMolecular Plant-Microbe Interactions, 2003
RNA-dependent RNA polymerases (RdRPs) have been implicated in posttranscriptional gene silencing (PTGS) and antiviral defense. An Arabidopsis RdRP (SDE1/SGS2) has been previously shown to be required for transgene-induced PTGS but has no general role in ...
Diqiu Yu   +3 more
doaj   +1 more source

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