Files and links (1)
Published, Version of Record (VoR)Open Access (License Unspecified), Open
Journal article
The methyltransferase enzymes KMT2D, SETD1B, and ASH1L are key mediators of both metabolic and epigenetic changes during cellular senescence
Molecular biology of the cell, v 33(5), pp ar36-ar36
01 May 2022
PMID: 35196069
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Cellular senescence is a terminal cell fate characterized by growth arrest and a metabolically active state characterized by high glycolytic activity. Human fibroblasts were placed in a unique metabolic state using a combination of methionine restriction (MetR) and rapamycin (Rapa). This combination induced a metabolic reprogramming that prevented the glycolytic shift associated with senescence. Surprisingly, cells treated in this manner did not undergo senescence but continued to divide at a slow rate even at high passage, in contrast with either Rapa treatment or MetR, both of which extended life span but eventually resulted in growth arrest. Transcriptome-wide analysis revealed a coordinated regulation of metabolic enzymes related to one-carbon metabolism including three methyltransferase enzymes (KMT2D, SETD1B, and ASH1L), key enzymes for both carnitine synthesis and histone modification. These enzymes appear to be involved in both the metabolic phenotype of senescent cells and the chromatin changes required for establishing the senescence arrest. Targeting one of these enzymes, ASH1L, produced both a glycolytic shift and senescence, providing proof of concept. These findings reveal a mechanistic link between a major metabolic hallmark of senescence and nuclear events required for senescence.
Metrics
Details
- Title
- The methyltransferase enzymes KMT2D, SETD1B, and ASH1L are key mediators of both metabolic and epigenetic changes during cellular senescence
- Creators
- Timothy Nacarelli - GlaxoSmithKlineAshley Azar - United States Military AcademyManali Potnis - Drexel UniversityGregg Johannes - Absorption SystemsJoshua Mell - Drexel UniversityF Brad Johnson - University of PennsylvaniaHolly Brown-Borg - University of North DakotaEishi Noguchi - Drexel UniversityChristian Sell - Drexel University
- Publication Details
- Molecular biology of the cell, v 33(5), pp ar36-ar36
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biochemistry and Molecular Biology; Microbiology and Immunology; School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000794957800004
- Scopus ID
- 2-s2.0-85128489197
- Other Identifier
- 991019168710804721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Cell Biology