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EZH2 inhibition enhances the activity of Carboplatin in aggressive-variant prostate cancer cell lines.
Epigenomics
January 2025
Cancer Research Group, School of Life Health and Chemical Sciences, The Open University UK, Milton Keynes, UK.
Background: Aggressive Variant Prostate Cancers (AVPCs) are incurable malignancies. Platinum-based chemotherapies are used for the palliative treatment of AVPC. The Polycomb Repressive Complex 2 (PRC2) promotes prostate cancer progression histone H3 Lysine 27 tri-methylation (H3K27me3).
View Article and Find Full Text PDFRespiratory syncytial virus (RSV) is the leading cause of lower respiratory tract infection hospitalizations in infants and poses a significantly higher risk of respiratory failure than SARS-CoV-2. The mechanisms underlying these differences remain unclear. We analyzed blood samples from infants (median age 2.
View Article and Find Full Text PDFTanshinone I Ameliorates Psoriasis-Like Dermatitis by Suppressing Inflammation and Regulating Keratinocyte Differentiation.
Drug Des Devel Ther
January 2025
Department of Dermatology, Second Xiangya Hospital, Hunan Key Laboratory of Medical Epigenomics, Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Central South University, Changsha, Hunan, People's Republic of China.
Background: Psoriasis is an immune-related inflammatory systemic condition characterized by dysregulated keratinocyte proliferation and chronic inflammation. Tanshinone I (Tan-I) has recently been discovered to have immunomodulatory properties, but its role and mechanisms in treating psoriasis remain unclear.
Objective: To evaluate the efficacy of Tan-I in the treatment of psoriasis and to determine the mechanisms involved.
Chromatin environment-dependent effects of DOT1L on gene expression in male germ cells.
Commun Biol
January 2025
Université Paris Cité, CNRS, Inserm, Institut Cochin, F-75014, Paris, France.
The H3K79 methyltransferase DOT1L is essential for multiple aspects of mammalian development where it has been shown to regulate gene expression. Here, by producing and integrating epigenomic and spike-in RNA-seq data, we decipher the molecular role of DOT1L during mouse spermatogenesis and show that it has opposite effects on gene expression depending on chromatin environment. On one hand, DOT1L represses autosomal genes that are devoid of H3K79me2 at their bodies and located in H3K27me3-rich/H3K27ac-poor environments.
View Article and Find Full Text PDFTranscription and epigenetic factor dynamics in neuronal activity-dependent gene regulation.
Trends Genet
January 2025
Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan; Institute of Neurological and Psychiatric Disorders, Shenzhen Bay Laboratory, Shenzhen, Guangdong 518132, China. Electronic address:
Neuronal activity, including sensory-evoked and spontaneous firing, regulates the expression of a subset of genes known as activity-dependent genes. A key issue in this process is the activation and accumulation of transcription factors (TFs), which bind to cis-elements at specific enhancers and promoters, ultimately driving RNA synthesis through transcription machinery. Epigenetic factors such as histone modifiers also play a crucial role in facilitating the specific binding of TFs.
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