Results 101 to 110 of about 102,384 (311)

DHODH Drives Sunitinib Resistance Via a Non‐Enzymatic Mechanism by Inhibiting TRIM28 Ubiquitination and Consequent VEGFA Activation in RCC

open access: yesAdvanced Science, EarlyView.
This non‑enzymatic function of DHODH drives sunitinib resistance by competing with TRIM37 to block TRIM28 ubiquitination, thereby stabilizing TRIM28 and activating VEGFA transcription. Disrupting the DHODH–TRIM28 interaction with lisaftoclax restores drug sensitivity.
Shijie Qian   +10 more
wiley   +1 more source

HP1a-mediated heterochromatin formation inhibits high dietary sugar-induced tumor progression

open access: yesCell Death and Disease, 2021
High dietary sugar (HDS) is a modern dietary concern that involves excessive consumption of carbohydrates and added sugars, and increases the risk of metabolic disorders and associated cancers.
Che-Wei Chang   +2 more
doaj   +1 more source

Early-replicating heterochromatin [PDF]

open access: yesGenes & Development, 2003
Euchromatin, which has an open structure and is frequently transcribed, tends to replicate in early S phase. Heterochromatin, which is more condensed and rarely transcribed, usually replicates in late S phase. Here, we report significant deviation from this correlation in the fission yeast,Schizosaccharomyces pombe.
Soo-Mi, Kim   +2 more
openaire   +2 more sources

Molecular and Cellular Hallmarks of Age‐Related Vestibular Hair Cell Degeneration

open access: yesAdvanced Science, EarlyView.
This study utilizes single‐cell RNA‐seq transcriptomes, advanced imaging, and electrophysiology to examine universal and cell‐type‐specific aging signatures of vestibular hair cells. The study shows that impaired hair bundle function is a key driver of age‐related vestibular dysfunction.
Samadhi Kulasooriya   +10 more
wiley   +1 more source

The histone variant H2A.W and linker histone H1 co-regulate heterochromatin accessibility and DNA methylation

open access: yesNature Communications, 2020
In flowering plants, heterochromatin is demarcated by the histone variant H2A.W, elevated levels of the linker histone H1, and specific epigenetic modifications, such as high levels of DNA methylation at both CG and non-CG sites.
Pierre Bourguet   +10 more
semanticscholar   +1 more source

Psychological Stress Associated Bile Acid Reprogramming Promotes Hepatocellular Carcinoma Progression

open access: yesAdvanced Science, EarlyView.
Depression is increasingly recognized as a risk factor for chronic diseases, yet its biological impact on cancer remains unclear. Using data from more than 490 000 participants across three international cohorts, we show that depression significantly increases the risk of liver cancer.
Ruijiang Zeng   +10 more
wiley   +1 more source

PRC2.1 Coordinates Peri-Nucleolar H3K27me3-Enriched Heterochromatin Organization and NPM1 Pentamerization to Maintain Nucleolar Integrity. [PDF]

open access: yesAdv Sci (Weinh)
PRC2.1(PCL2)‐coordinated H3K27me3‐enriched PNH establishes a spatial scaffold crucial for nucleolar integrity. As a crucial coordinator, PCL2 links PRC2.1 to chromatin organization and NPM1 assembly. This network‐based model reveals how chromatin modifications and nucleolar components cooperatively maintain nucleolar architecture, revealing novel ...
Zhu L   +12 more
europepmc   +2 more sources

Heterochromatin: an epigenetic point of view in aging

open access: yesExperimental and Molecular Medicine, 2020
Aging is an inevitable process of life. Defined by progressive physiological and functional loss of tissues and organs, aging increases the risk of mortality for the organism.
Jong-Hyuk Lee   +3 more
semanticscholar   +1 more source

Variation in telomeric heterochromatin in somaclones of rye

open access: yes, 1992
Somaclonal variation in telomeric heterochromatin was detected by in situ hybridization with the het 1 probe, which hybridizes to a 380-bp repeated sequence family. In a control cultivar, Gazelle, large blocks of signal were detected at the telomeres but
Kaltsikes, P. J.   +9 more
core   +1 more source

Navigating heterochromatin [PDF]

open access: yes, 2003
The condensed structure of heterochromatin differs significantly from euchromatin and DNA bound in heterochromatin is generally not transcriptionally active. Transcriptional silencing allows the control of gene expression and affords a novel mechanism of
Fuerst, Peter
core   +1 more source

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