Moonlighting Enzymes at the Interface Between Metabolism and Epigenetics.

Area of Science:

• Molecular Biology
• Biochemistry
• Epigenetics

Background:

• Metabolism and gene regulation are essential for cellular homeostasis, growth, and development.
• Recent studies highlight a complex interplay between metabolic processes and gene expression control.
• Key metabolites can directly influence chromatin structure and gene activity by acting as cofactors for modifying enzymes.

Purpose of the Study:

• To discuss the bidirectional relationship between metabolism and chromatin.
• To explore how metabolic changes affect gene expression and vice versa.
• To examine the role of this interface in cancer biology.

Main Methods:

• Literature review and synthesis of current research findings.
• Analysis of the roles of metabolites in chromatin modification.
• Investigation of metabolic enzymes with direct roles in gene regulation.
• Examination of chromatin's intrinsic metabolic functions.

Main Results:

• Metabolites serve as substrates/cofactors for chromatin-modifying enzymes, thereby regulating gene expression.
• Certain metabolic enzymes possess 'moonlighting' functions, directly regulating transcription independently of their enzymatic activity.
• Chromatin itself exhibits metabolic functions beyond transcriptional regulation.
• The interplay between metabolism and chromatin is frequently altered in cancer cells.

Conclusions:

• A dynamic, bidirectional crosstalk exists between cellular metabolism and chromatin regulation.
• This metabolic-chromatin axis is crucial for normal cellular functions and is a significant factor in oncogenesis.
• Understanding this interface offers potential therapeutic targets for cancer treatment.