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The role of miR-342 in vascular health. Study in subclinical cardiovascular disease in mononuclear cells, plasma, inflammatory cytokines and PANX2

Lookup NU author(s): Sabby Ray, Alice Tamara, Jevi Latief, Dr Sherin Bakhashab, Dr Jolanta Weaver



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


© 2020 by the authors. Licensee MDPI, Basel, Switzerland.Cardiovascular disease (CVD) correlates with inflammation and a reduction in circulating endothelial progenitor cells (cEPCs). Recently, CVD was shown to be the main cause of mortality in individuals with type 1 diabetes (T1DM). In animals, miR-342 was shown to exert an anti-inflammatory effect in CVD. Hypothesis: miR-342-3p/-5p are downregulated in subclinical CVD (T1DM), whereas inflammatory cytokines are upregulated. We studied miR-342-3p/5p in plasma/peripheral blood mononuclear cells (PBMCs) in 29 T1DM and 20 controls (HC). Vascular health was measured by fibronectin adhesion assay (FAA), cEPCs (CD45dimCD34+133+ cells) and by assessing inflammation and tissue inhibition of metalloproteases (TIMP-1). In T1DM IL-7, IL-8, TNFα and VEGF-C were increased in plasma. MiR-342-3p/-5p were downregulated in PBMCs in T1DM, but not in plasma. PANX2, chemokine receptors CXCR1/2 mRNAs, were increased in PBMCs in T1DM. MiR-342-3p was negatively correlated with TIMP-1, IL-6, IL-8, TNF-α, HbA1c and CXCR2, whilst miR-342-5p was negatively correlated with TIMP-1, IL-6, IL-8 and HbA1c. There was a positive correlation among miR-342-3p, FAA and cEPCs, and between miR-342-5p and cEPCs. ROC curve analyses showed significant downregulation of miR-342-3p/-5p at HbA1c > 46.45 mmol/mol, indicating their potential as biomarkers for subclinical CVD. Our findings validated animal studies and confirmed the proangiogenic properties of miR-342-3p/-5p. MiR-342-3p/-5p-based intervention or monitoring may prove to be beneficial in managing CVD.

Publication metadata

Author(s): Ray SL, Coulson DJ, Yeoh MLY, Tamara A, Latief JS, Bakhashab S, Weaver JU

Publication type: Article

Publication status: Published

Journal: International Journal of Molecular Sciences

Year: 2020

Volume: 21

Issue: 19

Pages: 1-16

Online publication date: 29/09/2020

Acceptance date: 13/08/2020

Date deposited: 27/11/2020

ISSN (print): 1661-6596

ISSN (electronic): 1422-0067

Publisher: MDPI AG


DOI: 10.3390/ijms21197217

PubMed id: 33003647


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