tetano
Editor, Senior Moderator
J Med Virol
. 2020 Jun 16.
doi: 10.1002/jmv.26181. Online ahead of print.
Dysregulation of the Immune Response Affects the Outcome of Critical COVID-19 Patients
Lin-Lin Wei[SUP] 1 [/SUP], Wen-Jing Wang[SUP] 2 [/SUP], De-Xi Chen[SUP] 2 [/SUP], Bin Xu[SUP] 1 [/SUP]
Affiliations
Abstract
Objectives: Critical cases of coronavirus disease 2019 (COVID-19) are associated with a high risk of mortality. It remains unclear why patients with the same critical condition have different outcomes. We aimed to explore relevant factors that may affect the prognosis of critical COVID-19 patients.
Methods: Six critical COVID-19 inpatients were included in our study. The 6 patients were divided into two groups based on whether they had a good or poor prognosis. We collected peripheral blood samples at admission and the time point of exacerbation to compare differences in the phenotypes and functions of major populations of immune cells between the groups.
Results: On admission, compared to patients with poor prognoses, those with good prognoses had significantly higher counts of monocytes (p < 0.05), macrophages (p < 0.05), higher frequency of CD3[SUP]+[/SUP] CD4[SUP]+[/SUP] CD45RO[SUP]+[/SUP] CXCR3[SUP]+[/SUP] subsets (p < 0.05), higher frequency of CD14[SUP]+[/SUP] CD11C[SUP]+[/SUP] HLA-DR[SUP]+[/SUP] subset of dendritic cells (DCs) (p < 0.05), and a lower count of neutrophils (p < 0.05). At the time point of exacerbation, the proportions of na?ve CD4[SUP]+[/SUP] T cells (p < 0.05), Tregs, and Th2 cells in the poor prognosis group were relatively higher than those in the good prognosis group, and CD4[SUP]+[/SUP] memory T cells were relatively lower (p < 0.05).
Conclusion: According to our results, the poor prognosis group showed a worse immune response than the good prognosis group at the time of admission and at exacerbation. Dysregulation of the immune response affects the outcome of critical COVID-19 patients. This article is protected by copyright. All rights reserved.
Keywords: COVID-19; dendritic cells; immune response; lymphocyte subsets; outcome.
. 2020 Jun 16.
doi: 10.1002/jmv.26181. Online ahead of print.
Dysregulation of the Immune Response Affects the Outcome of Critical COVID-19 Patients
Lin-Lin Wei[SUP] 1 [/SUP], Wen-Jing Wang[SUP] 2 [/SUP], De-Xi Chen[SUP] 2 [/SUP], Bin Xu[SUP] 1 [/SUP]
Affiliations
- PMID: 32543740
- DOI: 10.1002/jmv.26181
Abstract
Objectives: Critical cases of coronavirus disease 2019 (COVID-19) are associated with a high risk of mortality. It remains unclear why patients with the same critical condition have different outcomes. We aimed to explore relevant factors that may affect the prognosis of critical COVID-19 patients.
Methods: Six critical COVID-19 inpatients were included in our study. The 6 patients were divided into two groups based on whether they had a good or poor prognosis. We collected peripheral blood samples at admission and the time point of exacerbation to compare differences in the phenotypes and functions of major populations of immune cells between the groups.
Results: On admission, compared to patients with poor prognoses, those with good prognoses had significantly higher counts of monocytes (p < 0.05), macrophages (p < 0.05), higher frequency of CD3[SUP]+[/SUP] CD4[SUP]+[/SUP] CD45RO[SUP]+[/SUP] CXCR3[SUP]+[/SUP] subsets (p < 0.05), higher frequency of CD14[SUP]+[/SUP] CD11C[SUP]+[/SUP] HLA-DR[SUP]+[/SUP] subset of dendritic cells (DCs) (p < 0.05), and a lower count of neutrophils (p < 0.05). At the time point of exacerbation, the proportions of na?ve CD4[SUP]+[/SUP] T cells (p < 0.05), Tregs, and Th2 cells in the poor prognosis group were relatively higher than those in the good prognosis group, and CD4[SUP]+[/SUP] memory T cells were relatively lower (p < 0.05).
Conclusion: According to our results, the poor prognosis group showed a worse immune response than the good prognosis group at the time of admission and at exacerbation. Dysregulation of the immune response affects the outcome of critical COVID-19 patients. This article is protected by copyright. All rights reserved.
Keywords: COVID-19; dendritic cells; immune response; lymphocyte subsets; outcome.