Results 71 to 80 of about 56,937 (264)

A Quantitative Characterization of Nucleoplasmin/Histone Complexes Reveals Chaperone Versatility. [PDF]

open access: yes, 2016
Nucleoplasmin (NP) is an abundant histone chaperone in vertebrate oocytes and embryos involved in storing and releasing maternal histones to establish and maintain the zygotic epigenome. NP has been considered a H2A-H2B histone chaperone, and recently it
Alonso, E   +5 more
core   +2 more sources

Engineering Extracellular Vesicle Production Through Magnetic Ion Channel Activation for Bone Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Magnetic Ion Channel Activation (MICA) enables remote stimulation of mechanosensitive ion channels using functionalised magnetic nanoparticles, enhancing extracellular vesicle (EV) biogenesis is pre‐osteoblasts. MICA desrived EVs exhibit typical nano‐vesicular characteristics but display superior pro‐osteogeneic activity, promoting mesenchymal stem ...
Afeesh Rajan Unnithan   +9 more
wiley   +1 more source

Heat shock induces rapid resorption of primary cilia [PDF]

open access: yes, 2012
Primary cilia are involved in important developmental and disease pathways, such as the regulation of neurogenesis and tumorigenesis. They function as sensory antennae and are essential in the regulation of key extracellular signalling systems.
Anckar   +32 more
core   +1 more source

GATA4‐Driven Transcription of HtrA1 Promotes Cellular Senescence in Ménière's Disease and Age‐Related Audio‐Vestibular Dysfunction

open access: yesAdvanced Science, EarlyView.
This study identifies the HDAC6/GATA4/HtrA1 axis as a critical driver of cellular senescence in the inner ear. GATA4 nuclear translocation, facilitated by HDAC6 downregulation, transcriptionally activates HtrA1, promoting hair cell senescence, SASP, and audio‐vestibular dysfunction in models of Ménière's disease and age‐related audio‐vestibular ...
Na Zhang   +16 more
wiley   +1 more source

The histone chaperone Nrp1 is required for chromatin stability and nuclear division in Tetrahymena thermophila

open access: yesEpigenetics & Chromatin, 2021
Histone chaperones facilitate DNA replication and repair by promoting chromatin assembly, disassembly and histone exchange. Following histones synthesis and nucleosome assembly, the histones undergo posttranslational modification by different enzymes and
Yinjie Lian   +5 more
doaj   +1 more source

The Friedreich ataxia GAA repeat expansion mutation induces comparable epigenetic changes in human and transgenic mouse brain and heart tissues [PDF]

open access: yes, 2007
Friedreich ataxia (FRDA) is caused by a homozygous GAA repeat expansion mutation within intron 1 of the FXN gene, leading to reduced expression of frataxin protein.
C. Sandi   +7 more
core   +1 more source

Targeting Lactate and Lactylation in Cancer Metabolism and Immunotherapy

open access: yesAdvanced Science, EarlyView.
Lactate, once deemed a metabolic waste, emerges as a central regulator of cancer progression. This review elucidates how lactate and its epigenetic derivative, protein lactylation, orchestrate tumor metabolism, immune suppression, and therapeutic resistance.
Jiajing Gong   +5 more
wiley   +1 more source

A Role for FACT in RNA Polymerase II Promoter-Proximal Pausing

open access: yesCell Reports, 2019
Summary: FACT (facilitates chromatin transcription) is an evolutionarily conserved histone chaperone that was initially identified as an activity capable of promoting RNA polymerase II (Pol II) transcription through nucleosomes in vitro.
Theophilus T. Tettey   +12 more
doaj   +1 more source

Importin-9 wraps around the H2A-H2B core to act as nuclear importer and histone chaperone. [PDF]

open access: yes, 2019
We report the crystal structure of nuclear import receptor Importin-9 bound to its cargo, the histones H2A-H2B. Importin-9 wraps around the core, globular region of H2A-H2B to form an extensive interface.
Brautigam, Chad A   +9 more
core   +1 more source

Chz1, a Nuclear Chaperone for Histone H2AZ [PDF]

open access: yesMolecular Cell, 2007
The histone variant H2AZ marks nucleosomes flanking the promoters of most genes of budding yeast. The incorporation of H2AZ into chromatin is dependent on the SWR1 complex, which catalyses the replacement of conventional histone H2A with H2AZ. In cells, the pool of unincorporated histone H2AZ has previously been found in association with Nap1, a ...
Luk, Ed   +10 more
openaire   +2 more sources

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