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Oncohistone-sculpted epigenetic mechanisms in pediatric brain cancer.
Curr Opin Pharmacol
January 2025
Functional Genomics and Metabolism Research Unit, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, DK-5230, Odense, Denmark. Electronic address:
Chromatin dynamics, involving reversible changes in chromatin structure, shape key cellular processes and genomic integrity during development and proliferation, with disruptions leading to cancer. Histones, core components of chromatin and substrates for chromatin-modifying enzymes, play crucial roles in oncogenesis when misregulated or mutated. This is particularly pronounced in pediatric hind brain cancers, some of which are driven primarily by the oncohistone H3K27M and the recently identified oncohistone-mimic protein CXorf67/EZHIP.
View Article and Find Full Text PDFInfiltrating lipid-rich macrophage subpopulations identified as a regulator of increasing prostate size in human benign prostatic hyperplasia.
Front Immunol
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Division of Urology, Department of Surgery, Endeavor Health (formerly NorthShore University HealthSystem), Evanston, IL, United States.
Introduction: Macrophages exhibit marked phenotypic heterogeneity within and across disease states, with lipid metabolic reprogramming contributing to macrophage activation and heterogeneity. Chronic inflammation has been observed in human benign prostatic hyperplasia (BPH) tissues, however macrophage activation states and their contributions to this hyperplastic disease have not been defined. We postulated that a shift in macrophage phenotypes with increasing prostate size could involve metabolic alterations resulting in prostatic epithelial or stromal hyperplasia.
View Article and Find Full Text PDFAn Open-Label Phase II Trial of Pembrolizumab, an Immune Checkpoint Inhibitor Alone or in Combination With Oral Azacitidine as Second-Line Therapy for Advanced Head and Neck Squamous Cell Cancers.
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Medical Oncology Healthcare Global Bangalore India.
Background And Aims: Sensitivity to immune checkpoint inhibitor (ICI) therapy depends in part on the genetic and epigenetic makeup of cancer cells, and CD8 T-lymphocytes that mediate immune responses. Epigenetics are heritable reversible changes in gene expression that occur without any changes in the nuclear DNA sequence or DNA copy number.
Primary Objective: i.
Cuproplasia and cuproptosis, two sides of the coin.
Cancer Commun (Lond)
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Department of Medical Oncology, Zhejiang Key Laboratory of Multi-omics Precision Diagnosis and Treatment of Liver Diseases, Cancer Center of Zhejiang University, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, P. R. China.
Copper is an essential micronutrient in the human body, mainly acting as a crucial cofactor required for a wide range of physiological processes across nearly all cell types. Recent advances revealed that tumor cells seize copper to fulfill their rapid proliferation, metastasis, immune evasion, and so on by reprogramming the copper regulatory network, defined as cuproplasia. Thus, targeting copper chelation to reduce copper levels has been considered a rational tumor therapy strategy.
View Article and Find Full Text PDFIdentification of Cell Fate Determining Transcription Factors for Generating Brain Endothelial Cells.
Stem Cell Rev Rep
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Stem Cell Institute, Department of Development and Regeneration, KU Leuven, O&N IV Herestraat 49, Leuven, 3000, Belgium.
Reliable models of the blood-brain barrier (BBB), wherein brain microvascular endothelial cells (BMECs) play a key role in maintenance of barrier function, are essential tools for developing therapeutics and disease modeling. Recent studies explored generating BMEC-like cells from human pluripotent stem cells (hPSCs) by mimicking brain-microenvironment signals or genetic reprogramming. However, due to the lack of comprehensive transcriptional studies, the exact cellular identity of most of these cells remains poorly defined.
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