Results 101 to 110 of about 45,835 (226)

Immunostimulatory short non-coding RNAs in the circulation of patients with tuberculosis infection

Molecular Therapy: Nucleic Acids
Mycobacterium tuberculosis (Mtb) infection is among the world’s deadliest infectious diseases. Developing effective treatments and biomarkers for tuberculosis requires a deeper understanding of its pathobiology and host responses.
Justin Gumas, Takuya Kawamura, Megumi Shigematsu, Yohei Kirino   +3 more
doaj   +1 more source

Effect of Social Rank on Gut Microbes and Their Metabolites of Greater Long‐Tailed Hamsters (Tscherskia triton)

Integrative Zoology, EarlyView.
Social rank in greater long‐tailed hamsters (Tscherskia triton) shapes gut microbiota composition and metabolite profiles. Dominant males exhibit a “high‐vigilance, metabolically activated” phenotype, with elevated aggression and specific gut microbiota enriched in energy‐harvesting taxa and fecal queuine.
Da Zhang, Xiaoming Xu, Zhibin Zhang
wiley   +1 more source

tRNA‐Derived Small RNAs in Digestive Cancers: From Translational Regulation to Immune and Extracellular Communication

Cancer Science, EarlyView.
tRNA‐derived small RNAs (tsRNAs) function in digestive cancers across three scales: intracellular translational and metabolic control, extracellular vesicle–mediated immune remodeling, and systemic and host–microbe communication. This review organizes these mechanisms by evidence strength, from well‐established intracellular roles to emerging ...
Wang Xitan, Li Han
wiley   +1 more source

Emerging roles and therapeutic potential of tRNA-Derived small RNAs in reproductive system diseases: a review

Frontiers in Cell and Developmental Biology
tRNA-derived small RNAs (tsRNAs) are a class of non-coding RNAs(ncRNAs) generated from precursor or mature tRNAs under stress conditions, such as starvation, hypoxia, or oxidative stress.
Qian Zhou, Qian Zhou, Qian Zhou, Qian Zhou, Minxin He, Minxin He, Minxin He, Minxin He, Min Liu, Guoying Sun, Guoying Sun, Guoying Sun, Guoying Sun, Jian Li, Jian Li, Jian Li, Jian Li   +16 more
doaj   +1 more source

Unravelling the phylogeny of armadillos and their kin (Mammalia, Xenarthra, Cingulata) combining morphological, molecular, and stratigraphic data

Cladistics, EarlyView.
Abstract Cingulata, a major lineage of Xenarthra, comprises extinct and extant armoured placental mammals that diversified throughout the Cenozoic. Despite extensive study, phylogenetic hypotheses based on morphological and molecular data remain incongruent, and no total evidence analysis has been conducted. Here, we integrate the largest morphological
Daniel M. Casali, Mariela C. Castro, Martin R. Ciancio, Timothy J. Gaudin, Jeremy L. Bramblett, Alberto Boscaini, Fernando A. Perini, Max C. Langer   +7 more
wiley   +1 more source

A Specific tRNA Half, 3'tiRNA‐GlyGCC, Regulates Hypoxic Pulmonary Artery Smooth Muscle Cell Proliferation via Myrf‐Mediated Endoplasmic Reticulum Stress

Cell Proliferation, EarlyView.
A schematic diagram illustrating how 3′tiRNA‐GlyGCC promotes the endoplasmic reticulum stress (ERS) and proliferation in hypoxic pulmonary artery smooth muscle cells (PASMCs) by inhibiting the expression of myelin regulatory factor (Myrf), ultimately leading to pulmonary hypertension (PH).
Lixin Zhang, Xiaoyu Guan, Xiangrui Zhu, Yingying Hao, Ya Xu, Hao Yuan, Danni Gao, Hongxia Du, Jiayu Li, Weiwei Cao, Cui Ma, Xiaoying Wang   +11 more
wiley   +1 more source

Proteostasis of organelles in aging and disease

The FEBS Journal, EarlyView.
Cells rely on regulated proteostasis mechanisms to keep their internal compartments functioning properly. When these mechanisms fail, damaged proteins accumulate, disrupting organelles, such as the nucleus, mitochondria, endoplasmic reticulum, Golgi, and lysosomes, as well as membraneless organelles, such as stress granules, processing bodies, the ...
Yara Nabawi, Cansu Doğan, Dunja Petrović, Gülce Perçin, Seda Koyuncu, David Vilchez   +5 more
wiley   +1 more source

GCN2 in proteostasis: structural logic, signalling networks and disease

The FEBS Journal, EarlyView.
Threats to protein synthesis activate the kinase GCN2, initiating the integrated stress response (ISR). GCN2 is triggered by stalled ribosomes and uncharged tRNAs, which accumulate when amino acids are scarce. The ISR adjusts cellular physiology by promoting redox balance, protein quality control, and mitochondrial optimisation.
JiaYi Zhu, Stefan J. Marciniak
wiley   +1 more source

Genetic dissection reveals distinct contributions of the eS31 N‐terminal domain to translational accuracy in Saccharomyces cerevisiae

The FEBS Journal, EarlyView.
The eukaryote‐specific N‐terminal domain (NTD) of eS31 uses two distinct strategies to maintain translation fidelity. During elongation, a positively charged “hotspot” fine‐tunes the selection of incoming aa‐tRNA. During termination, the entire NTD acts as a structural scaffold to ensure the correct positioning of the release factor eRF1.
Qingxuan Gao, Hiroshi Otsuka, Kei Endo, Koichi Ito   +3 more
wiley   +1 more source

Cryo‐EM structures of multiple‐peptide resistance factor (MprF) from Pseudomonas aeruginosa

The FEBS Journal, EarlyView.
Cryo‐EM analysis of MprF from Pseudomonas aeruginosa reveals a dimeric enzyme, distinct from Rhizobium homologues. The soluble GNAT domain contains a dynamic amphipathic helix (TTH) that adopts different positions in detergent micelle and nanodisc, relative to the membrane.
Shaileshanand Jha, Kutti R. Vinothkumar
wiley   +1 more source