RESUMEN
Modern clinical studies show the association of fibrinolysis system factors with complications following COVID-19. This review includes the studies describing the relationship of urokinase plasminogen activator proteins uPA and its receptor uPAR, plasmin-ogen activator inhibitor PAI-1 and plasmin itself with severity of COVID-19. Potential of diagnosis based on analysis of concen-trations and activities of these proteins, as well as expression of their encoding genes is described. These data can predict severe course and possible complications of COVID-19 including thrombosis, respiratory failure and cytokine storm. © 2022, Media Sphera Publishing Group. All rights reserved.
RESUMEN
Modern clinical studies show the association of fibrinolysis system factors with complications following COVID-19. This review includes the studies describing the relationship of urokinase plasminogen activator proteins uPA and its receptor uPAR, plasmin-ogen activator inhibitor PAI-1 and plasmin itself with severity of COVID-19. Potential of diagnosis based on analysis of concen-trations and activities of these proteins, as well as expression of their encoding genes is described. These data can predict severe course and possible complications of COVID-19 including thrombosis, respiratory failure and cytokine storm. © 2022, Media Sphera Publishing Group. All rights reserved.
RESUMEN
As a rule, coronavirus infections are mild in healthy adults and do not require special approaches to treatment. However, highly pathogenic strains, particularly the recently isolated SARS-CoV2, which causes COVID-19 infection, in about 15% of cases lead to severe complications, including acute respiratory distress syndrome, which causes high patient mortality. In addition, a common complication of COVID-19 is the development of pulmonary fibrosis. Why is the novel coronavirus so pathogenic? What new treatments can be proposed to speed up the recovery and subsequent rehabilitation of the organism? In 2020, over 34 000 scientific articles were published on the structure, distribution, pathogenesis, and possible approaches to the treatment of infection caused by the novel SARS-CoV2 coronavirus. However, there are still no definitive answers to these questions, while the number of the diseased is increasing daily. One of the comprehensive approaches to the treatment of the consequences of the infection is the use of multipotent human mesenchymal stromal cells and products of their secretion (secretome). Acting at several stages of the development of the infection, the components of the secretome can suppress the interaction of the virus with endothelial cells, regulate inflammation, and stimulate lung tissue regeneration, preventing the development of fibrosis. The results of basic and clinical research on this topic are summarized, including our own experimental data, indicating that cell therapy approaches can be successfully applied to treat patients with COVID-19.