Results 71 to 80 of about 8,024 (201)

Toxic mechanisms of amyloid oligomers and therapeutic strategies

open access: yesProtein Science, Volume 35, Issue 4, April 2026.
Abstract Amyloid oligomers are increasingly recognized as the major toxic contributors across protein‐misfolding disorders. In this review, we cover mechanistic evidence showing how these transient and structurally heterogeneous oligomers disrupt cellular homeostasis by: (i) permeabilizing lipid membranes and forming ion‐conducting pores; (ii ...
Magdalena I. Ivanova   +2 more
wiley   +1 more source

Disulfide Crosslinking Induces Rapid Degradation of Arc/Arg3.1 via Hsp70‐Mediated Ubiquitin Ligase Pathway

open access: yesThe FASEB Journal, Volume 40, Issue 6, 31 March 2026.
Heat shock induces Arc/Arg3.1 Cys34‐Cys159 disulfide crosslinking, promoting oligomerization and Hsp70‐CHIP‐dependent ubiquitination followed by proteasomal degradation during recovery. Disrupting disulfide formation (C159A) impairs CHIP‐mediated ubiquitination and stabilizes Arc/Arg3.1, whereas HSF1 loss limits inducible Hsp70 and leads to Arc ...
Dami So   +7 more
wiley   +1 more source

RBM47 inhibits hepatocellular carcinoma progression by targeting UPF1 as a DNA/RNA regulator

open access: yesCell Death Discovery, 2022
The mechanisms by which the tumor behaviors of hepatocellular carcinoma (HCC) support growth and metastasis remain largely unknown, and it has become increasingly apparent that molecular dysregulation is of considerable importance for cellular signaling ...
Tao Guo   +6 more
doaj   +1 more source

Position of Premature Termination Codons Determines Susceptibility of hERG Mutations to Nonsense-Mediated mRNA Decay in Long QT Syndrome

open access: yes, 2014
The degradation of human ether-a-go-go-related gene (hERG, KCNH2) transcripts containing premature termination codon (PTC)mutations by nonsense-mediatedmRNA decay (NMD) is an importantmechanismof long QT syndrome type 2 (LQT2).
Gong, Qiuming   +2 more
core   +1 more source

Aberrant Splicing Signatures Underpin Oligodendrocyte Damage in ALS and Neuron Loss in FTD

open access: yesAdvanced Science, Volume 13, Issue 17, 23 March 2026.
Integrating bulk and single‐nucleus RNA‐seq from ALS and FTD patients, we revealed distinct cellular dysfunctions, with severe oligodendrocyte damage in ALS and pronounced neuron loss in FTD. We identified cell‐type‐specific aberrant splicing events as potential biomarkers with robust classification performance, some of which produce de novo peptides ...
Chen Du   +6 more
wiley   +1 more source

Ribosome-bound Upf1 forms distinct 80S complexes and conducts mRNA surveillance

open access: yesRNA, 2022
Upf1, Upf2, and Upf3, the central regulators of nonsense-mediated mRNA decay (NMD), appear to exercise their NMD functions while bound to elongating ribosomes, and evidence for this conclusion is particularly compelling for Upf1. Hence, we employed selective profiling of yeast Upf1:ribosome association to define that step in greater detail, understand ...
Robin Ganesan   +4 more
openaire   +3 more sources

The RNA surveillance proteins UPF1, UPF2 and SMG6 affect HIV-1 reactivation at a post-transcriptional level

open access: yesRetrovirology, 2018
Background The ability of human immunodeficiency virus type 1 (HIV-1) to form a stable viral reservoir is the major obstacle to an HIV-1 cure and post-transcriptional events contribute to the maintenance of viral latency.
Shringar Rao   +4 more
doaj   +1 more source

Amlexanox Enhances Premature Termination Codon Read-Through in COL7A1 and Expression of Full Length Type VII Collagen: Potential Therapy for Recessive Dystrophic Epidermolysis Bullosa. [PDF]

open access: yes, 2017
Recessive dystrophic epidermolysis bullosa (RDEB) is a rare monogenic blistering disorder caused by the lack of functional type VII collagen, leading to skin fragility and subsequent trauma-induced separation of the epidermis from the underlying dermis ...
Atanasova, Velina S.   +10 more
core   +1 more source

The RNA Helicase DHX34 Activates NMD by Promoting a Transition from the Surveillance to the Decay-Inducing Complex

open access: yesCell Reports, 2014
Nonsense-mediated decay (NMD) is a surveillance mechanism that degrades aberrant mRNAs. A complex comprising SMG1, UPF1, and the translation termination factors eRF1 and eRF3 (SURF) is assembled in the vicinity of a premature termination codon ...
Nele Hug, Javier F. Cáceres
doaj   +1 more source

Exploring the Role of Long Noncoding RNAs in Breast Cancer Progression: A Comprehensive Study on Biomarkers and Therapeutic Approaches

open access: yesCancer Medicine, Volume 15, Issue 1, January 2026.
ABSTRACT Background Among the many forms of cancer that plague women all over the globe, breast cancer (BC) is one of the most prevalent kinds. BC is a multifaceted disease that can manifest in many ways depending on the individual. Aims The identification of new biomarkers that may be used to diagnose and prognosis of the BC, as well as those that can
Ramin Moeini   +2 more
wiley   +1 more source

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