Results 51 to 60 of about 28,454 (236)
Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization
Advanced Science, EarlyView.This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin +11 more
wiley +1 more source
JmjC histone demethylases act as chromatin oxygen sensors
Molecular & Cellular Oncology, 2019 Oxygen sensing is important in physiology but also in disease. We find that hypoxia (oxygen deficiency) triggers rapid and hypoxia-inducible factor (HIF)-independent histone methylation changes which are reversible upon reoxygenation.
Michael Batie, Sonia Rocha
doaj +1 more source
Cell Reports, 2019 Summary: Self-renewing somatic tissues depend upon the proper balance of chromatin-modifying enzymes to coordinate progenitor cell maintenance and differentiation, disruption of which can promote carcinogenesis. As a result, drugs targeting the epigenome
Shaun Egolf +12 more
doaj +1 more source
Allele‐Specific Inhibition of Histone Demethylases
ChemBioChem, 2019 AbstractHistone demethylases play a critical role in mammalian gene expression by removing methyl groups from lysine residues in degree‐ and site‐specific manner. To specifically interrogate members and isoforms of this class of enzymes, we have developed demethylase variants with an expanded active site.
Shana Wagner +5 more
openaire +3 more sources
A Self‐Organized Liquid Reaction Container for Cellular Memory
Advanced Science, EarlyView.How cells restore epigenetic information lost during replication is not known. This work proposes a mechanism based on the formation of biomolecular condensates. These condensates are induced by the chromosome itself and serve as reaction vessels for reconstructing missing epigenetic markers.
Sukanta Mukherjee +4 more
wiley +1 more source
KDM4A Erases the H3R17me2a Mark, Facilitating Chromosome Condensation
Advanced Science, EarlyView.This study reveals a reversible histone modification switch governing chromosome condensation during mitosis. PKCα‐activated KDM4A removes H3R17me2a, permitting Suv39h1‐driven H3K9me3 deposition. This epigenetic transition recruits the chromosomal passenger complex and triggers Aurora B‐dependent H3S10 phosphorylation, coordinating chromatin remodeling
Yena Cho +6 more
wiley +1 more source
Epigenetic mechanisms regulate stem cell expressed genes Pou5f1 and Gfra1 in a male germ cell line. [PDF]
PLoS ONE, 2010 Male fertility is declining and an underlying cause may be due to environment-epigenetic interactions in developing sperm, yet nothing is known of how the epigenome controls gene expression in sperm development.
Maren Godmann, Erin May, Sarah Kimmins
doaj +1 more source
Targeting Lactate and Lactylation in Cancer Metabolism and Immunotherapy
Advanced 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
Activation of Xist by an evolutionarily conserved function of KDM5C demethylase
Nature Communications, 2022 Here the authors show eutherian mammals co-opted the histone demethylase KDM5C during sex-chromosome evolution to induce X-chromosome inactivation by upregulating Xist expression selectively in females.
Milan Kumar Samanta +11 more
doaj +1 more source
S3RL: Enhancing Spatial Single‐Cell Transcriptomics With Separable Representation Learning
Advanced Science, EarlyView.Separable Spatial Representation Learning (S3RL) is introduced to enhance the reconstruction of spatial transcriptomic landscapes by disentangling spatial structure and gene expression semantics. By integrating multimodal inputs with graph‐based representation learning and hyperspherical prototype modeling, S3RL enables high‐fidelity spatial domain ...
Laiyi Fu +6 more
wiley +1 more source