E3 PreliminaryPreliminaryPEM not requiredCross-SectionalPeer-reviewedReviewed
Histone phosphorylation analysis of two main TCM syndromes of chronic fatigue syndrome.
Xu, Tingting, Gao, Shuo, Cheng, Xinxin et al. · Journal of translational medicine · 2025 · DOI
Quick Summary
Researchers studied blood cells from 20 ME/CFS patients (divided into two Traditional Chinese Medicine symptom patterns) and 10 healthy controls. They found differences in how proteins were modified in the blood cells of ME/CFS patients compared to healthy people. These differences involved processes that affect how cells communicate with each other and organize their internal structures.
Why It Matters
This study provides potential molecular signatures that could distinguish between ME/CFS patient subgroups, which may help explain why patients experience different symptom patterns. Understanding these cellular differences could eventually lead to better diagnostic tools and more targeted treatments for different ME/CFS presentations.
Observed Findings
- Differential histone phosphorylation patterns were identified in CFS patients compared to healthy controls.
- Both TCM syndrome types showed abnormalities in intracellular signal transduction processes.
- Differences were observed in actin filament bundling and cortical cytoskeleton organization between CFS and control groups.
- The two TCM syndrome patterns (Qi and Blood Deficiency vs. Liver Depression and Spleen Deficiency) showed distinct phosphoprotein expression profiles.
Inferred Conclusions
- Histone phosphorylation abnormalities may contribute to the molecular pathology of ME/CFS.
- Multiple cellular signaling and cytoskeletal processes are dysregulated in ME/CFS and may be related to symptom development.
- TCM syndrome classification may reflect distinct molecular subtypes within ME/CFS.
Remaining Questions
- Do these histone phosphorylation changes occur in other ME/CFS populations, or are they specific to this Chinese cohort?
- Are these protein modifications functionally relevant to ME/CFS symptoms, or are they epiphenomena?
- Could these biomarkers help predict treatment response or track disease progression over time?
What This Study Does Not Prove
This study does not prove that histone phosphorylation changes cause ME/CFS symptoms—it only shows that differences exist. The small sample size and single-center recruitment limit whether these findings apply to the broader ME/CFS population. The study also does not establish whether these protein changes are primary disease mechanisms or secondary consequences of the illness.
Tags
Symptom:Fatigue
Biomarker:Gene ExpressionBlood Biomarker
Method Flag:Weak Case DefinitionSmall SampleExploratory OnlyPEM Not Defined
Metadata
- DOI
- 10.1186/s12967-025-07579-9
- PMID
- 41449404
- Review status
- Editor reviewed
- Evidence level
- Early hypothesis, preprint, editorial, or weak support
- Last updated
- 12 April 2026
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 →
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