Results 71 to 80 of about 22,965 (136)

AGO-bound mature miRNAs are oligouridylated by TUTs and subsequently degraded by DIS3L2

Nature Communications, 2020
3′ end of microRNAs binds to the PAZ domain of Argonaute (AGO) proteins. Here the authors show that terminal nucleotidyltransferases TUT4/7 and exonuclease DIS3L2 induce tailing and decay of 3’ end exposed-microRNAs in AGO PAZ mutant expressing- or ...
Acong Yang, Tie-Juan Shao, Xavier Bofill-De Ros, Chuanjiang Lian, Patricia Villanueva, Lisheng Dai, Shuo Gu   +6 more
doaj   +1 more source

MicroRNA‐Driven Regulation of β‐Cell Function in Type 2 Diabetes: Molecular Mechanisms, Network Insights, and Translational Perspectives

Acta Physiologica, Volume 242, Issue 9, September 2026.
ABSTRACT MicroRNAs (miRNAs) have emerged as central regulators of pancreatic islet biology, influencing β‐cell development, proliferation, and function. In type 2 diabetes (T2D), both adaptive and maladaptive miRNA responses shape β‐cell compensation and progressive secretory dysfunction.
Lena Eliasson, Alexandros Karagiannopoulos, Mototsugu Nagao, Anna Wendt   +3 more
wiley   +1 more source

RNA-guided RNA silencing by an Asgard archaeal Argonaute

Nature Communications
Argonaute proteins are the central effectors of RNA-guided RNA silencing pathways in eukaryotes, playing crucial roles in gene repression and defense against viruses and transposons.
Carolien Bastiaanssen, Pilar Bobadilla Ugarte, Kijun Kim, Giada Finocchio, Yanlei Feng, Todd A. Anzelon, Stephan Köstlbacher, Daniel Tamarit, Thijs J. G. Ettema, Martin Jinek, Ian J. MacRae, Chirlmin Joo, Daan C. Swarts, Fabai Wu   +13 more
doaj   +1 more source

Structural and Functional Insights Into (S)‐5′‐C‐Guanidinopropyl Uridine‐Modified Oligonucleotides With 2′‐O‐Methyl and 2′‐Fluoro Substitutions for RNAi Therapeutics

ChemMedChem, Volume 21, Issue 15, 14 August 2026.
Novel (S)‐5′‐guanidinopropyl uridine analogs bearing 2′‐O‐methyl or 2′‐fluoro substitutions enhance nuclease resistance and mismatch discrimination while preserving A‐form RNA structure and potent RNAi activity. These modifications provide a promising strategy for improving the stability, specificity, and therapeutic potential of siRNA‐based medicines.
Sugahara Masaki, Elsayed M. Mahmoud, Shuichi Sakamoto, Yoshihito Ueno   +3 more
wiley   +1 more source

Condensates on the Move: Midbody Remnants as Large, Translation‐Competent Extracellular Vesicles

BioEssays, Volume 48, Issue 8, August 2026.
Mitotic cells produce three EV types: exosomes and microvesicles (green/blue) delivering pre‐formed molecules, and midbody remnants (magenta) containing functional ribosomes and translation machinery within biomolecular condensates. Unlike passive cargo carriers, MBRs actively synthesize proteins after release, transforming from cellular debris to ...
Ahna R. Skop
wiley   +1 more source

Hierarchical contribution of Argonaute proteins to antiviral protection. [PDF]

J Exp Bot, 2023
Ludman M, Szalai G, Janda T, Fátyol K.
europepmc   +1 more source

MicroRNAs in Spinal Cord Injury: Molecular and Translational Insights

Brain and Behavior, Volume 16, Issue 8, August 2026.
MicroRNAs (miRNAs) modulate secondary injury cascades following spinal cord injury (SCI), including inflammation, oxidative stress, apoptosis, and demyelination. Key miRNAs such as miR‐21, miR‐124, miR‐219, and miR‐223 exert neuroprotective effects by regulating astrocytic response, axon regeneration, and remyelination.
Seyyedeh Fahimeh Talebi, Hossein Kalarestaghi, Ehsan Sheikh Hesabi, Saeed Vafaei‐Nezhad   +3 more
wiley   +1 more source

Recent Advances in the Molecular Mechanisms of Bacterial Anti‐Phage Defence Systems

Microbial Biotechnology, Volume 19, Issue 8, August 2026.
Panoptes as an example for an antiphage system consists of OptS producing a cyclic dinucleotide that prevents activation of OptE, a transmembrane protein. Phage T4 infection introduces the sponge protein Acb2 that adsorbs the cyclic dinucleotide thus activating OptE which disrupts the cell membrane aborting phage infection.
Harald Brüssow
wiley   +1 more source

Prokaryotic Argonaute Proteins: A New Frontier in Point-of-Care Viral Diagnostics. [PDF]

Int J Mol Sci, 2023
Sun K, Liu Y, Zhao W, Ma B, Zhang M, Yu X, Ye Z.   +6 more
europepmc   +1 more source

Emerging experimental and bioinformatic approaches in RNA interference‐based pest control research

Insect Molecular Biology, Volume 35, Issue 4, Page 364-375, August 2026.
Double‐stranded RNA (dsRNA) visualization, RNA‐induced silencing complex (RISC)‐bound sRNA‐seq and RNA degradomics allow investigating dsRNA uptake and processing, guide small interfering RNA selection and RISC‐mediated target mRNA cleavages. Transcriptomic and proteomic profiles of genome‐wide responses to dsRNA, including off‐target and compensatory ...
Doga Cedden
wiley   +1 more source