The Evolving Landscape of Noncanonical Functions of Metabolic Enzymes in Cancer and Other Pathologies
Related Experiment Video
Updated: Nov 22, 2025

Assessment of the Metabolic Profile of Primary Leukemia Cells
Published on: November 21, 2018
Daqian Xu1, Fei Shao2, Xueli Bian2
1Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou 310029, China.
Abstract:
Key pathological, including oncogenic, signaling pathways regulate the canonical functions of metabolic enzymes that serve the cellular metabolic needs. Importantly, these signaling pathways also confer a large number of metabolic enzymes to have noncanonical or nonmetabolic functions that are referred to as "moonlighting" functions. In this review, we highlight how aberrantly regulated metabolic enzymes with such activities play critical roles in the governing of a wide spectrum of instrumental cellular activities, including gene expression, cell-cycle progression, DNA repair, cell proliferation, survival, apoptosis, and tumor microenvironment remodeling, thereby promoting the pathologic progression of disease, including cancer.
Insights
Metabolic enzymes have dual roles, performing essential functions and "moonlighting" in nonmetabolic activities. Aberrant regulation of these moonlighting enzymes drives cancer progression by impacting cell activities and the tumor microenvironment.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Metabolic enzymes are crucial for cellular energy and biosynthesis.
- Pathological signaling pathways, particularly oncogenic ones, influence metabolic enzyme activity.
- Metabolic enzymes can possess noncanonical functions beyond metabolism, termed 'moonlighting'.
Purpose of the Study:
- To review the nonmetabolic,
- moonlighting
- functions of metabolic enzymes.
- To elucidate the role of aberrantly regulated metabolic enzymes in disease pathology, especially cancer.
Main Methods:
- Literature review focusing on metabolic enzymes with moonlighting functions.
- Analysis of signaling pathways that regulate these enzymes.
- Examination of the impact of dysregulated moonlighting enzymes on cellular processes and disease.
Main Results:
- Metabolic enzymes exhibit significant nonmetabolic functions critical for cellular activities.
- Aberrant regulation of these moonlighting enzymes is implicated in gene expression, cell-cycle control, DNA repair, proliferation, survival, and apoptosis.
- Dysfunctional metabolic enzymes contribute to tumor microenvironment remodeling and cancer progression.
Conclusions:
- Metabolic enzymes' moonlighting functions are critical drivers of pathological processes.
- Targeting aberrantly regulated metabolic enzymes offers potential therapeutic strategies for cancer.
More Related Videos
Related Concept Videos
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Electron Transport Chain: Complex I and II
ROS generation is regulated and maintained at moderate levels necessary...
Introduction to Metabolism
Regulation of Metabolism
Cancer-Critical Genes I: Proto-oncogenes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...

