Aberrations in the Cross-Talks Among Redox, Nuclear Factor-κB, and Wnt/β-Catenin Pathway Signaling Underpin Myalgic Encephalomyelitis and Chronic Fatigue Syndrome. — CFSMEATLAS
Aberrations in the Cross-Talks Among Redox, Nuclear Factor-κB, and Wnt/β-Catenin Pathway Signaling Underpin Myalgic Encephalomyelitis and Chronic Fatigue Syndrome.
Maes, Michael, Kubera, Marta, Kotańska, Magdalena · Frontiers in psychiatry · 2022 · DOI
Quick Summary
This study examined proteins and metabolites in ME/CFS patients to understand how the disease works at a molecular level. Researchers found that ME/CFS involves problems with three interconnected cellular systems: how cells handle harmful oxidative stress, how the immune system responds through inflammation, and how cells communicate through a pathway called Wnt/β-catenin. The study suggests ME/CFS may be triggered by various causes—like infections or toxic exposures—but they all damage these same three systems.
Why It Matters
Understanding the molecular pathways underlying ME/CFS is crucial for developing targeted treatments. This study identifies three interconnected systems—oxidative stress, immune dysfunction, and cell communication—as central to disease pathogenesis, potentially guiding future therapeutic strategies. These findings support the biological basis of ME/CFS and may help explain why patients respond differently to various triggers.
Observed Findings
The ME/CFS protein network is centered on seven hub molecules: NFKB1, CTNNB1, albumin, TNF, IL-6, NOS2, and peroxidases.
The network comprises three interconnected subnetworks: immune dysfunction, oxidative-nitrosative stress, and Wnt/β-catenin cell signaling.
Analysis revealed strong associations with antioxidant detoxification, hydrogen peroxide metabolism, and peroxidase/oxidoreductase activity.
The network was enriched for connections to intestinal disorders, immune system disorders, infectious disease, and cancer.
The pathways involve toll-like receptor (TLR2/4) signaling and the transcription factors NF-κB and RELA.
Inferred Conclusions
ME/CFS may result from multiple different triggers (infections, toxins, comorbidities) that converge on similar molecular dysfunction.
The three central pathway abnormalities—redox imbalance, NF-κB hyperactivation, and Wnt/β-catenin dysregulation—represent coordinated failures in cellular homeostasis.
These interconnected pathways suggest therapeutic approaches should target crosstalk between immune, oxidative, and cell communication systems rather than single pathways alone.
Remaining Questions
Which of these pathway abnormalities are primary causes versus secondary consequences of ME/CFS initiation?
What This Study Does Not Prove
This network analysis cannot determine causation—only that these pathways are associated with ME/CFS. It does not identify which aberrations are primary causes versus secondary effects of the disease. The study cannot validate whether normalizing these pathways would actually improve patient symptoms, nor does it establish whether specific infectious or toxic triggers always activate this same network.