Study on the Relationship between the miRNA-centered ceRNA Regulatory Network and Fatigue.
Yang, Xingzhe, Li, Feng, Ma, Jie et al. · Journal of molecular neuroscience : MN · 2021 · DOI
Quick Summary
This review examines how tiny molecules called miRNAs (and related molecules like lncRNAs and circRNAs) may control genes involved in fatigue. These molecules work together in a network to influence energy production, immune function, and brain signaling—all key factors in chronic fatigue. The authors argue that understanding this genetic control network could help explain why people develop fatigue and potentially lead to better ways to diagnose and treat it.
Why It Matters
For ME/CFS patients and researchers, this review highlights promising molecular pathways—particularly those involving energy metabolism and immune dysregulation—that could explain fatigue at the genetic level. Understanding the ceRNA regulatory network may eventually enable development of biomarkers for diagnosis and identification of new therapeutic targets, though substantial additional research is needed.
Observed Findings
miRNAs regulate immune inflammatory responses in the central nervous system and influence nerve impulse transmission and brain function
miRNAs participate in fatigue development by regulating mitochondrial function and energy metabolism
lncRNAs can regulate dopaminergic neurons involved in fatigue occurrence
circRNAs participate in fatigue pathways by regulating NF-κB signaling, TNF-α, and IL-1β
Competitive binding between mRNAs, lncRNAs, circRNAs, and miRNAs forms an integrated regulatory network
Inferred Conclusions
The miRNA-centered ceRNA regulatory network is mechanistically related to fatigue development
The ceRNA hypothesis provides a more comprehensive framework for understanding fatigue than single-molecule approaches
Exploring complex fatigue mechanisms through ceRNA network analysis is of significant scientific importance
Current research on ncRNA and fatigue is limited, with few studies on integrated network mechanisms
Remaining Questions
Which specific miRNAs, lncRNAs, and circRNAs are dysregulated in ME/CFS patients compared to healthy controls?
What This Study Does Not Prove
This review does not present new experimental data or clinical evidence; it is a theoretical synthesis of existing literature. It does not prove that the ceRNA network causes fatigue in humans—it proposes a mechanistic hypothesis that requires empirical validation through clinical and laboratory studies. The work cannot establish which molecular pathways are actually dysregulated in ME/CFS patients specifically.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →