TY - JOUR A1 - Dücker, Ruth Pia A1 - Adam, Elisabeth A1 - Wirtz, Sarah A1 - Gronau, Lucia A1 - Khodamoradi, Yascha A1 - Eberhardt, Fabian J. A1 - Donath, Helena A1 - Gutmann, Desiree A1 - Vehreschild, Maria J. G. T. A1 - Zacharowski, Kai A1 - Kreyenberg, Hermann A1 - Geburtig-Chiocchetti, Andreas A1 - Zielen, Stefan A1 - Schubert, Ralf T1 - The MiR-320 family is strongly downregulated in patients with COVID-19 induced severe respiratory failure T2 - International journal of molecular sciences N2 - A high incidence of thromboembolic events associated with high mortality has been reported in severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) infections with respiratory failure. The present study characterized post-transcriptional gene regulation by global microRNA (miRNA) expression in relation to activated coagulation and inflammation in 21 critically ill SARS-CoV-2 patients. The cohort consisted of patients with moderate respiratory failure (n = 11) and severe respiratory failure (n = 10) at an acute stage (day 0–3) and in the later course of the disease (>7 days). All patients needed supplemental oxygen and severe patients were defined by the requirement of positive pressure ventilation (intubation). Levels of D-dimers, activated partial thromboplastin time (aPTT), C-reactive protein (CRP), and interleukin (IL)-6 were significantly higher in patients with severe compared with moderate respiratory failure. Concurrently, next generation sequencing (NGS) analysis demonstrated increased dysregulation of miRNA expression with progression of disease severity connected to extreme downregulation of miR-320a, miR-320b and miR-320c. Kyoto encyclopedia of genes and genomes (KEGG) pathway analysis revealed involvement in the Hippo signaling pathway, the transforming growth factor (TGF)-β signaling pathway and in the regulation of adherens junctions. The expression of all miR-320 family members was significantly correlated with CRP, IL-6, and D-dimer levels. In conclusion, our analysis underlines the importance of thromboembolic processes in patients with respiratory failure and emphasizes miRNA-320s as potential biomarkers for severe progressive SARS-CoV-2 infection. KW - miRNA KW - SARS-CoV-2 KW - lung disease KW - respiratory failure KW - D-dimer KW - CRP Y1 - 2021 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/63396 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-633965 SN - 1422-0067 N1 - This research was funded by Starke Lunge Foundation. Starke Lunge is a non-profitable foundation registered in Germany (Regierungspräsidium Darmstadt: AZ: I 1325d 04/11(6)-78) that supports research projects in pediatric rare lung diseases. VL - 22 IS - 19, art. 10351 SP - 1 EP - 14 PB - Molecular Diversity Preservation International CY - Basel ER -