epigenetics

(redirected from Epigenetic regulation)
Also found in: Dictionary, Encyclopedia.
Related to Epigenetic regulation: Epigenetics, DNA methylation

epigenetics

(ĕp′ĭ-jə-nĕt′ĭks)
n. (used with a sing. verb)
The study of heritable changes in gene expression that are caused by factors such as DNA methylation rather than by a change in the sequence of base pairs in DNA itself.

epigenetics

(ĕp″ĭ-jĕ-nĕt′ĭks)
Changes in the way genes are expressed that occur without changes in the sequence of nucleic acids. In mammals the most common form of epigenetic change results from methylation (the addition of methyl [-CH3] moieties) to the promoter regions of genes. Although epigenetic changes do not alter the sequence of nucleotides, they are inheritable.
Mentioned in ?
References in periodicals archive ?
34) Maternal stress in rodents likewise led to different patterns of epigenetic regulation and gene expression in male and female placentas, with male offspring going on to develop maladaptive inflammatory and behavioral responses to stress as adults.
Therefore, we used the core network biomarkers to elucidate the cellular mechanisms by which aging and smoking elevate bladder cancer risk through epigenetic regulation, miRNA regulation, and signaling pathways.
sup][31] Previous investigations also found that methylation levels of subtelomeric regions were associated with TL and may be important for the epigenetic regulation of telomere dynamics.
Epigenetic regulation of gene expressions requires interplay between DNA methylation, histone covalent modifications, and nucleosomal remodeling.
The modulation of expression of IncRNAs by other regulatory RNAs such as miRNAs through epigenetic regulation could be notable aspect of RNA regulatory network.
The environment exerts a powerful effect on epigenetic regulation and alterations can occur during the lifetime of identical twins, resulting in differences in gene expression between closely related individuals.
A significant amount of research is being invested in understanding the complex nature of how various chromatin-associated RNAs impact gene expression and epigenetic regulation," said Christophe Couturier, senior vice president and head of the EMD Millipore Bioscience Business Area.
Long noncoding RNA transcripts are also involved in the epigenetic regulation of gene expression.
Berger, a Penn Integrates Knowledge Professor in the departments of Genetics and Cell and Developmental Biology at the Perelman School of Medicine and the department of Biology in the School of Arts and Sciences, and her team looked for chromatin-associated genes that could influence longevity by searching for genes that already were implicated in epigenetic regulation that might extend lifespan when deleted in the yeast, Saccharomyces cerevisiae.
Epigenetic regulation in the nervous system; basic mechanisms and clinical impact.
Additionally, an increasing amount of evidence lead to the hypothesis that modified residues in histone N-terminal tails function as recognition sites for the various factors involved in chromatin processes, creating a "histone code" (Strahl & Allis, 2000), while the combined DNA methylation and histone covalent modifications such as lysine methylation can define heritable chromatin states, resulting in the epigenetic regulation of gene expression (Bird, 2007).
Evidence suggests that isothiocyanates exert their effects through a variety of distinct but interconnected signaling pathways important for inhibiting carcinogenesis, including those involved in detoxification, inflammation, apoptosis, and cell cycle and epigenetic regulation, among others.