98%
921
2 minutes
20
Citrus psorosis virus and Mirafiori lettuce big-vein virus are two members of the genus Ophiovirus, family Ophioviridae. So far, how these viruses can interfere in the antiviral RNA silencing pathway is not known. In this study, using a local GFP silencing assay on Nicotiana benthamiana, the 24K-25K and the movement protein (MP) of both viruses were identified as RNA silencing suppressor proteins. Upon their co-expression with GFP in N. benthamiana 16c plants, the proteins also showed to suppress systemic RNA (GFP) silencing. The MP and 24K proteins bind long (114 nucleotides) but not short-interfering (21 nt) dsRNA, and upon transgenic expression, plants showed developmental abnormalities that coincided with an altered miRNA accumulation pattern. Furthermore, both proteins were able to suppress miRNA-induced silencing of a GFP-sensor construct and the co-expression of MP and 24K exhibited a stronger effect, suggesting they act at different stages of the RNAi pathway.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.virusres.2017.04.013 | DOI Listing |
Nature
September 2025
Helmholtz Institute for RNA-based Infection Research (HIRI), Helmholtz Centre for Infection Research (HZI), Würzburg, Germany.
Bacteriophages are the most abundant entities on earth and exhibit vast genetic and phenotypic diversity. Exploitation of this largely unexplored molecular space requires identification and functional characterization of genes that act at the phage-host interface. So far, this has been restricted to few model phage-host systems that are amenable to genetic manipulation.
View Article and Find Full Text PDFCancer Sci
September 2025
Section of Oncopathology and Morphological Pathology, Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.
Low-density lipoprotein receptor-related protein 11 (LRP11) is reported to be overexpressed in various cancers; however, its functional role in lung adenocarcinoma remains poorly understood. This study aimed to elucidate the tumor-promoting function of LRP11 in lung adenocarcinoma. We assessed the expression and function of LRP11 in lung adenocarcinoma cell lines through both silencing and overexpression experiments.
View Article and Find Full Text PDFEthnopharmacological Relevance: Heart failure (HF), the terminal stage of various cardiovascular diseases, represents a significant threat to global health. Fuxin Decoction (FXD), a classical Traditional Chinese Medicine (TCM) formula, has demonstrated therapeutic efficacy in HF treatment. However, its bioactive components and precise mechanisms remain to be elucidated.
View Article and Find Full Text PDFNeurobiol Dis
September 2025
Department of Neuroscience, Developmental and Regenerative Biology, The University of Texas at San Antonio, San Antonio, TX, USA; Brain Health Consortium, The University of Texas at San Antonio, San Antonio, TX, USA. Electronic address:
Temporal lobe epilepsy is associated with aberrant neurogenesis and ectopic migration of adult-born granule cells (abGCs), yet the molecular mechanisms driving these changes remain poorly defined. Using a pilocarpine-induced mouse model of temporal lobe epilepsy and chemogenetic silencing of abGCs via Designer Receptors Exclusively Activated by Designer Drugs (DREADDs), we previously demonstrated that abGC inhibition reduces both ectopic migration and seizure susceptibility. To identify underlying molecular regulators, we performed RNA sequencing of FACS-isolated abGCs and identified Rrm2 and Timp3 as top candidate genes modulated by seizure activity and neuronal silencing.
View Article and Find Full Text PDFTranspl Immunol
September 2025
Department of Endocrine, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China.
Background: Diabetic nephropathy (DN) represents approximately 50 % of all chronic kidney disease cases. Given the established involvement of USP22 in DN progression, this study investigated its underlying regulatory mechanisms.
Methods: Mouse podocytes were treated with high glucose (HG), and a diabetic mouse model was established.