<p>The Predictive Value of microRNA-134 and microRNA-1233 for the Early Diagnosis of Acute Exacerbation of Chronic Obstructive Pulmonary Disease with Acute Pulmonary Embolism</p>

Abstract

Background: The differential diagnosis of acute exacerbation of chronic obstructive pulmonary disease (AECOPD) with acute pulmonary embolism (APE) complications are difficult because of the variability of clinical presentations and the shortage of an unfailing screening biomarkers or instruments. Objective: Aimed to detect and compare the expression of serum microRNAs (miR-1233, miR-134) in AECOPD patients complicated with APE. Patients/Methods: Blood samples were collected from 52 AECOPD patients (13 patients with APE complications, 39 patients without APE) and 10 patients with stable COPD. Serum miRNAs expression was detected with real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR). The levels of plasma D-dimers were determined by detection with an enzyme-linked immunosorbent assay (ELISA). The receiver-operator characteristic (ROC) curve was used for evaluating the diagnostic accuracy of the studied miRNAs. Results: According to the Wells score, 42 of the 52 AECOPD patients were unlikely to have APE (≤4 points), whereas the remaining 10 (>4 points) were likely to have APE. There were 4 cases (4/13 30.8%) in the AECOPD combined with APE group with a Wells score of >4 points. The expression levels of miR-1233 and miR-134 in the serum were considerably upregulated in the AECOPD+APE group compared with the AECOPD group and the stable COPD group (P<0.05). The areas under the curve (AUCs) for miR-134 and miR-1233 were, respectively, 0.931 (95% CI 0.863-0.999) (P<0.05) and 0.884 (95% CI 0.79-0.978) (P<0.05) and were higher compared with the AUC for D-dimer of 0.628 (95% CI 0.447-0.809), the AUC for age-adjusted D-dimer of 0.705 (95% CI 0.525-0.885) and the AUC for Wells score of 0.577 (95% CI 0.389-0.765). Conclusion: Our study indicated that serum miR-1233 and miR-134 have high clinical value in the early diagnosis of AECOPD patients combined with APE, or could be used as potential biomarkers for clinical identification of AECOPD with or without APE complication.

Tumor necrosis factor-α promotes airway mucus hypersecretion by repressing miR-146a-5p and miR-134-5p levels in human airway epithelial cells

“…As expected, TNF-α treatment increased the mRNA and protein level of MUC5AC in 16HBE cells 1D,E). The previous studies have demonstrated that miR-134-5p (miR-134) and miR-146a-5p (miR-146a) are involved in mucus hypersecretion in COPD (12,(16)(17)(18)(19). To explore the association of TNF-α-induced MUC5AC expression with these miRNAs, we first assessed whether TNF-α regulated the expression of these miRNAs.…”

“…Out of the 20 miRNAs, miR-134-5p and miR-146a-5p are lower expressed in COPD patients, and are crucial miRNAs associated with several mucus hypersecretion-correlated potential targets (12). miR-134-5p is a potential marker for the clinical diagnose of acute exacerbation of COPD (16). Down-regulated miR-146a-5p is involved in the pathogenesis of COPD through inducing more proinflammatory phenotype (17)(18)(19).…”

The Function of microRNAs in Pulmonary Embolism: Review and Research Outlook

“…D-dimer is a classic biomarker for detecting and evaluating PE progression. Of interest, the areas under the curves (AUCs) for the correlation of miR-134 and miR-1233 with PE progression were 0.931 (95% confidence interval [CI] 0.863–0.999) and 0.884 (95% CI 0.79–0.978), respectively, which were higher than those of D-dimer (0.628) (95% CI 0.447–0.809) and Wells score (0.577) (95% CI 0.389–0.765) ( Peng et al, 2020 ). This study provided evidence that the levels of serum miR-1233 and miR-134 are significantly upregulated in COPD patients with APE complication.…”

Research progress on biomarkers of pulmonary embolism

“…59 Latest data identified circulating miR-1233 as a sensitive and specific biomarker for the early diagnosis of APE. 60 The above-mentioned differential expression experiments of miRNAs by quantitative reverse transcription polymerase chain reaction (qRT-PCR) indicate that miRNAs can be successfully used in the diagnosis of PE.…”