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Identification of a MicroRNA Signature for the Diagnosis of Fibromyalgia

Bob

Senior Member
Messages
16,455
Location
England (south coast)
Spain: Universidad Católica de Valencia "San Vicente Mártir".

Identification of a MicroRNA Signature for the Diagnosis of Fibromyalgia.
Cerdá-Olmedo G, Mena-Durán AV, Monsalve V, Oltra E.
2015 Mar 24
PLoS One 10:e0121903.
doi: 10.1371/journal.pone.0121903.
http://www.ncbi.nlm.nih.gov/pubmed/25803872/?ncbi_mmode=std

Abstract
BACKGROUND:
Diagnosis of fibromyalgia (FM), a chronic musculoskeletal pain syndrome characterized by generalized body pain, hyperalgesia and other functional and emotional comorbidities, is a challenging process hindered by symptom heterogeneity and clinical overlap with other disorders. No objective diagnostic method exists at present. The aim of this study was to identify changes in miRNA expression profiles (miRNome) of these patients for the development of a quantitative diagnostic method of FM. In addition, knowledge of FM patient miRNomes should lead to a deeper understanding of the etiology and/or symptom severity of this complex disease.

METHODS:
Genome-wide expression profiling of miRNAs was assessed in Peripheral Blood Mononuclear Cells (PBMCs) of FM patients (N=11) and population-age-matched controls (N=10) using human v16-miRbase 3D-Gene microarrays (Toray Industries, Japan). Selected miRNAs from the screen were further validated by RT-qPCR. Participating patients were long term sufferers (over 10 years) diagnosed by more than one specialist under 1990 American College of Rheumatology criteria.

RESULTS:
Microarray analysis of FM patient PBMCs evidenced a marked downregulation of hsa-miR223-3p, hsa-miR451a, hsa-miR338-3p, hsa-miR143-3p, hsa-miR145-5p and hsa-miR-21-5p (4-fold or more). All but the mildest inhibited miRNA, hsa-miR-21-5p, were validated by RT-qPCR. Globally, 20% of the miRNAs analyzed (233/1212) showed downregulation of at least 2-fold in patients. This might indicate a general de-regulation of the miRNA synthetic pathway in FM. No significant correlations between miRNA inhibition and FM cardinal symptoms could be identified. However, the patient with the lowest score for mental fatigue coincided with the mildest inhibition in four of the five miRNAs associated with the FM-group.

CONCLUSIONS:
We propose a signature of five strikingly downregulated miRNAs (hsa-miR223-3p, hsa-miR451a, hsa-miR338-3p, hsa-miR143-3p and hsa-miR145-5p) to be used as biomarkers of FM. Validation in larger study groups is required before the results can be transferred to the clinic.
 

Pyrrhus

Senior Member
Messages
4,172
Location
U.S., Earth
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Pyrrhus

Senior Member
Messages
4,172
Location
U.S., Earth
And related microRNA discussions regarding ME:

Assessing diagnostic value of microRNAs from peripheral blood mononuclear cells and extracellular vesicles in ME/CFS (Also by Elisa Oltra! 2020)
https://forums.phoenixrising.me/thr...les-in-me-cfs-almenar-perez-et-al-2020.79140/

Profile of circulating microRNAs in myalgic encephalomyelitis and their relation to symptom severity, and disease pathophysiology (by the team of Alain Moreau, 2020)
https://forums.phoenixrising.me/thr...-disease-pathophysiology-12th-nov-2020.82009/
 

Pyrrhus

Senior Member
Messages
4,172
Location
U.S., Earth
Related publications on fibromyalgia research:

Fibromyalgia Is Correlated with Retinal Nerve Fiber Layer Thinning (Garcia-Martin et al. 2016)
https://forums.phoenixrising.me/thr...-of-fibromyalgia-patients.61667/#post-2321474

Brain glial activation in fibromyalgia – A multi-site positron emission tomography investigation (Albrecht et al. 2019)
https://forums.phoenixrising.me/thr...-of-fibromyalgia-patients.61667/#post-2321470

Characterization of dermal skin innervation in fibromyalgia syndrome (Evdomikov et al., 2020)
https://forums.phoenixrising.me/thr...ervation-in-fibromyalgia-syndrome-2020.79404/

Passive transfer of fibromyalgia symptoms from patients to mice (Goebel et al., 2021)
https://forums.phoenixrising.me/thr...antibodies-produce-fm-symptoms-in-mice.84639/

Unbiased immune profiling reveals a natural killer cell-peripheral nerve axis in fibromyalgia (Verma et al., 2021)
https://forums.phoenixrising.me/thr...-axis-in-fibromyalgia-verma-et-al-2021.87598/

Pain-related post-exertional malaise in ME/CFS and Fibromyalgia: A systematic review and three-level meta-analysis (Barhorst et al., 2021)
https://forums.phoenixrising.me/thr...evel-meta-analysis-barhorst-et-al-2021.85991/
 
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