Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1212/WNL.0000000000000726 | DOI Listing |
Cell Metab
December 2024
State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing 210093, China; Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing 210093, China. Electronic address:
The essential amino acid methionine plays a pivotal role in one-carbon metabolism, facilitating the production of S-adenosylmethionine (SAM), a critical supplier for DNA methylation and thereby a modulator of gene expression. Here, we report that the methionine cycle is disrupted in skeletal muscle during cancer cachexia, leading to endoplasmic reticulum stress and DNA hypomethylation-induced expression of the DNA damage inducible transcript 4 (Ddit4) gene, encoding the regulated in development and DNA damage response 1 (REDD1) protein. Targeting DNA methylation by depletion or pharmacological inhibition of DNA methyltransferase 3A (DNMT3A) exacerbates cachexia, while restoring DNMT3A expression or REDD1 knockout alleviates cancer cachexia-induced skeletal muscle atrophy in mice.
View Article and Find Full Text PDFEpigenomes
December 2024
School of Veterinary and Animal Science (FMVZ), São Paulo State University (Unesp), Botucatu 18618-681, SP, Brazil.
Early weaning management followed by energy supplementation can lead to metabolic alterations in the calf that exert long-term effects on the animal's health and performance. It is believed that the main molecular basis underlying these metabolic adaptations are epigenetic mechanisms that regulate, activate, or silence genes at different stages of development and/or in response to different environmental stimuli. However, little is known about postnatal metabolic programming in .
View Article and Find Full Text PDFBasic Res Cardiol
December 2024
Department of Advanced Medical and Surgical Sciences (DAMSS), University of Campania "Luigi Vanvitelli", 80138, Naples, Italy.
Novel biomarkers are needed to better identify-and distinguish-heart failure with preserved ejection fraction (HFpEF) from other clinical phenotypes. The goal of our study was to identify epigenetic-sensitive biomarkers useful to a more accurate diagnosis of HFpEF. We performed a network-oriented genome-wide DNA methylation study of circulating CD4 T lymphocytes isolated from peripheral blood using reduced representation bisulfite sequencing (RRBS) in two cohorts (i.
View Article and Find Full Text PDFAdv Biomed Res
November 2024
Department of Cellular and Molecular Nutrition, Faculty of Nutrition Science and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Background: Acquisition of stem-like properties requires overcoming the epigenetic barrier of differentiation and re-expression of several genes involved in stemness and the cell cycle. DNA methylation is the classic epigenetic mechanism for de/differentiation. The writers and erasers of DNA methylation are not site-specific enzymes for altering specific gene methylation.
View Article and Find Full Text PDFBMC Genomics
December 2024
Department of Biological Sciences, Seoul National University, Seoul, Korea.
Background: Plants possess a high potential for somatic cell reprogramming, enabling the transition from differentiated tissue to pluripotent callus, followed by the formation of de novo shoots during plant regeneration. Despite extensive studies on the molecular network and key genetic factors involved in this process, the underlying epigenetic landscape remains incompletely understood.
Results: Here, we explored the dynamics of the methylome and transcriptome during the two-step plant regeneration process.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!