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Correlation of myeloid-derived suppressor cells with C-reactive protein, ferritin and lactate dehydrogenase levels in patients with severe COVID-19.
Emsen, Ayca; Sumer, Sua; Tulek, Baykal; Cizmecioglu, Hilal; Vatansev, Husamettin; Goktepe, Mevlut Hakan; Kanat, Fikret; Koksal, Yavuz; Arslan, Ugur; Artac, Hasibe.
  • Emsen A; Department of Pediatric Immunology and Allergy, Faculty of Medicine, Selcuk University, Konya, Turkey.
  • Sumer S; Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Selcuk University, Konya, Turkey.
  • Tulek B; Department of Respiratory Diseases, Faculty of Medicine, Selcuk University, Konya, Turkey.
  • Cizmecioglu H; Department of Internal Medicine, Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.
  • Vatansev H; Department of Medical Biochemistry, Faculty of Medicine, Selcuk University, Konya, Turkey.
  • Goktepe MH; Department of Internal Medicine, Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.
  • Kanat F; Department of Respiratory Diseases, Faculty of Medicine, Selcuk University, Konya, Turkey.
  • Koksal Y; Department of Pediatric Oncology, Faculty of Medicine, Selcuk University, Konya, Turkey.
  • Arslan U; Department of Medical Microbiology, Faculty of Medicine, Selcuk University, Konya, Turkey.
  • Artac H; Department of Pediatric Immunology and Allergy, Faculty of Medicine, Selcuk University, Konya, Turkey.
Scand J Immunol ; 95(1): e13108, 2022 Jan.
Article in English | MEDLINE | ID: covidwho-1462877
ABSTRACT
The novel coronavirus disease 2019 (COVID-19) remains a global health emergency, and understanding the interactions between the virus and host immune responses is crucial to preventing its lethal effects. The expansion of myeloid-derived suppressor cells (MDSCs) in COVID-19, thereby suppressing immune responses, has been described as responsible for the severity of the disease, but the correlation between MDSC subsets and COVID-19 severity remains elusive. Therefore, we classified patients according to clinical and laboratory findings-aiming to investigate the relationship between MDSC subsets and laboratory findings such as high C-reactive protein, ferritin and lactate dehydrogenase levels, which indicate the severity of the disease. Forty-one patients with COVID-19 (26 mild and 15 severe; mean age of 49.7 ± 15 years) and 26 healthy controls were included in this study. MDSCs were grouped into two major subsets-polymorphonuclear MDSCs (PMN-MDSCs) and monocytic MDSCs-by flow cytometric immunophenotyping, and PMN-MDSCs were defined as mature and immature, according to CD16 expressions, for the first time in COVID-19. Total MDSCs, PMN-MDSCs, mature PMN-MDSCs and monocytic MDSCs were significantly higher in patients with COVID-19 compared with the healthy controls (P < .05). Only PMN-MDSCs and their immature PMN-MDSC subsets were higher in the severe subgroup than in the mild subgroup. In addition, a significant correlation was found between C-reactive protein, ferritin and lactate dehydrogenase levels and MDSCs in patients with COVID-19. These findings suggest that MDSCs play a role in the pathogenesis of COVID-19, while PMN-MDSCs, especially immature PMN-MDSCs, are associated with the severity of the disease.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: C-Reactive Protein / Acute-Phase Proteins / Ferritins / Myeloid-Derived Suppressor Cells / SARS-CoV-2 / COVID-19 / L-Lactate Dehydrogenase Type of study: Cohort study / Observational study / Prognostic study Limits: Adult / Aged / Female / Humans / Male / Middle aged / Young adult Language: English Journal: Scand J Immunol Year: 2022 Document Type: Article Affiliation country: Sji.13108

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Full text: Available Collection: International databases Database: MEDLINE Main subject: C-Reactive Protein / Acute-Phase Proteins / Ferritins / Myeloid-Derived Suppressor Cells / SARS-CoV-2 / COVID-19 / L-Lactate Dehydrogenase Type of study: Cohort study / Observational study / Prognostic study Limits: Adult / Aged / Female / Humans / Male / Middle aged / Young adult Language: English Journal: Scand J Immunol Year: 2022 Document Type: Article Affiliation country: Sji.13108