Results 31 to 40 of about 11,016 (219)

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Cryo-ET comparison of the hierarchical ultrastructure of silkworm, spider, and artificial silk fibers

Nature Communications
Spider and silkworm silks are renowned for their exceptional mechanical properties, which arises from their ultrastructural organization. However, this architecture remains incompletely understood.
Kai Song, Haonan Zhang, Xueli Zhang, Yan Li, Ping Zhu   +4 more
doaj   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Snord15b Maintains Stemness of Intestinal Stem Cells via Enhancement of Alternative Splicing of Btrc Short Isoform for Suppression of β‐Catenin Ubiquitination

Advanced Science
Intestinal epithelium is derived from Lgr5+ intestinal stem cells (ISCs) located at the crypt base. However, how small nucleolar RNAs (snoRNAs) regulate ISC stemness remains elusive. Here, a conserved snoRNA, Snord15b, that is highly expressed in ISCs is
Yuwei Xu, Peikang Zhang, Zhen Xiong, Yufei Lan, Hui Guo, Runyuan Wu, Cunzhen Li, Hongzhe Fan, Ying Du, Xiaoxiao Zhu, Dongdong Fan, Zhonglong Wang, Yong Tian, Zusen Fan   +13 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Epigenetic regulation in chondrogenesis.

Acta medica Okayama, 2010
Epigenetics is an essential mechanism to control gene expression and fundamental cellular processes. DNA methylation in CpG-rich promoters correlates with gene silencing. Histone modification including histone acetylation and deacetylation determines the stability of the chromatin structure.
Furumatsu, Takayuki, Ozaki, Toshifumi
openaire   +3 more sources

Role of epigenetic regulation in glaucoma

Biomedicine & Pharmacotherapy, 2023
Glaucoma is the world's leading irreversible blinding eye disease. Lowering intraocular pressure is currently the only effective clinical treatment. However, there is a lack of long-acting IOP-lowering drugs, and some patients still experience retinal ganglion cell loss even with good intraocular pressure control.
Lemeng Feng, Chao Wang, Cheng Zhang, Wulong Zhang, Weitao Song   +4 more
openaire   +2 more sources

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

ssG4-seq for global profiling of strand-specific G-quadruplex structures in mammalian genomes

Nature Communications
DNA G-quadruplexes (G4s), formed by guanine-rich sequences in mammalian genomes, are non-canonical structures implicated in gene regulation. However, their strand-specific genomic distribution and mechanistic roles in transcription remain poorly ...
Sheng Li, Ruoyan Wang, Jinyue Zhang, Changchang Cao, Jiangshan Bai, Zhaokui Cai, Rong Ye, Juan Chen, Wanglong Liu, Chen Lu, Ruitian Li, Yuanchao Xue   +11 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source