Results 91 to 100 of about 23,786 (199)

Histone Acetylation Differentially Modulates CTCF-CTCF Loops and Intra-TAD Interactions

open access: yes
Abstract The cohesin complex structures the interphase genome by extruding loops and organizing topologically associating domains (TADs). While cohesin engages chromatin in context- dependent modes, the regulatory influence of chromatin state on these interactions remains unclear.
Smith, Rebecca G   +9 more
openaire   +3 more sources

Sex‐Modulated TACSTD2 Methylation and Hormone‐Receptor Axis Interactions in Glioblastoma: Insights Toward Mechanistic Understanding

open access: yesComputational and Systems Oncology, Volume 6, Issue 1, December 2026.
Sex‐stratified analyses of the TCGA and CGGA cohorts have identified promoter‐proximal TACSTD2 CpG sites where methylation shows opposite survival associations in males and females, is independent of copy number, and correlates with TACSTD2 expression.
Tahreem Fatima
wiley   +1 more source

Regulation of cholesterol biosynthesis by CTCF and H3K27 methylation is critical for cell migration

open access: yesEuropean Journal of Cell Biology
CTCF is a key factor in three-dimensional chromatin folding and transcriptional control that was found to affect cancer cell migration by a mechanism that is still poorly understood. To identify this mechanism, we used mouse melanoma cells with a partial
Lukasz Stanislaw Kaczmarczyk   +5 more
doaj   +1 more source

CTCF genomic binding sites in Drosophila and the organisation of the bithorax complex.

open access: yesPLoS Genetics, 2007
Insulator or enhancer-blocking elements are proposed to play an important role in the regulation of transcription by preventing inappropriate enhancer/promoter interaction.
Eimear E Holohan   +7 more
doaj   +1 more source

Plasma exosomal miR‐339‐3p promotes myocardial remodeling in chronic heart failure by regulating USP25‐mediated DDX58 deubiquitination

open access: yesJournal of Cell Communication and Signaling, Volume 20, Issue 3, September 2026.
In the patients of chronic heart failure (HF), miR‐339‐3p derived from plasma exosomes can target ubiquitin‐specific protease 25, inhibiting its K48‐linked deubiquitination modification of DDX58, leading to increased ubiquitination and degradation of DDX58.
Guoqiang Jing, Ting Xu, Yuhong Ma
wiley   +1 more source

Exploration of CTCF post-translation modifications uncovers Serine-224 phosphorylation by PLK1 at pericentric regions during the G2/M transition

open access: yeseLife, 2019
The zinc finger CCCTC-binding protein (CTCF) carries out many functions in the cell. Although previous studies sought to explain CTCF multivalency based on sequence composition of binding sites, few examined how CTCF post-translational modification (PTM)
Brian C Del Rosario   +7 more
doaj   +1 more source

DNA Replication Stress‐Induced Transcriptome of Human Burkitt's Lymphoma Identifies Reciprocal Regulation Between MBD1 and BCL6 During Germinal Center‐Derived B‐Lymphomagenesis

open access: yesHematological Oncology, Volume 44, Issue 5, September 2026.
ABSTRACT BCL6 is a master transcriptional regulator of germinal center (GC) B cells. BCL6 is frequently translocated at the major translocation cluster (MTC) within intron 1 of the BCL6 locus, a hotspot commonly rearranged in diffuse large B cell lymphomas (DLBCLs).
Santosh Kumar Gothwal   +4 more
wiley   +1 more source

Optical mapping reveals a higher level of large‐scale structural variants in a family with paternally transmitted myotonic dystrophy and independent Parkinson's disease

open access: yesThe Journal of Pathology, Volume 270, Issue 1, Page 83-97, September 2026.
Abstract Myotonic dystrophy type 1 (DM1) is a clinically challenging multisystem neuromuscular hereditary disorder, with generational increase in severity and earlier age at onset. It is caused by an unstable cytosine‐thymine‐guanine repeat expansion at the DMPK locus, accompanied by associated genetic and epigenetic modifications.
Md Mehedi Hasan   +9 more
wiley   +1 more source

Priming with interleukin‐1α and chemical hypoxia modulates the mesenchymal stem cell secretome to dampen microglial inflammation and promote neuroprotection

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 17, Page 5355-5371, September 2026.
Abstract Background and Purpose We hypothesised that dual priming of human bone marrow‐derived human mesenchymal stem cells (hBMSCs) with interleukin‐1alpha (IL‐1α) and CoCl2 (a hypoxia mimetic) would modulate their therapeutic efficacy for hypoxic‐ischaemic conditions. Experimental Approach hBMSCs were primed individually or in combination.
Maryam Adenike Salaudeen   +2 more
wiley   +1 more source

Dose‐Dependent Reprogramming of Chromatin Accessibility by SOX4 Drives the Transcriptional Response to Iron Overload

open access: yesAdvanced Science, Volume 13, Issue 43, 3 August 2026.
This study demonstrates that iron overload triggers widespread chromatin compaction and transcriptional repression in human granulosa cells, recapitulating features of endometriosis. The epigenetic reprogramming is orchestrated by a TFEB‐SOX4‐SWI/SNF axis, with SOX4 acting as a central, dosage‐sensitive regulator.
Feifei Li   +15 more
wiley   +1 more source

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