In:
Frontiers in Immunology, Frontiers Media SA, Vol. 13 ( 2022-2-18)
Abstract:
Immune suppression contributes to nosocomial infections (NIs) and poor prognosis in sepsis. Recent studies revealed that CD71 + erythroid cells had unappreciated immunosuppressive functions. This study aimed to investigate the values of CD71 + erythroid cells (CECs) in predicting NIs and prognosis among adult septic patients. The potential factors associated with the expansion of CECs were also explored. Methods In total, 112 septic patients and 32 critically ill controls were enrolled. The frequencies of CD71 + cells, CD71 + CD235a + cells, and CD45 + CECs were measured by flow cytometry. The associations between CECs and NIs and 30-day mortality were assessed by ROC curve analysis and Cox and competing-risk regression models. Factors associated with the frequency of CECs were identified by linear regression analysis. Results The percentage of CD71 + cells, CECs, and CD45 + CECs were higher in septic patients than critically ill controls. In septic patients, the percentages of CD71 + cells, CECs, and CD45 + CECs were associated with NI development, while CD71 + cells and CECs were independently associated with 30-day mortality. Linear regression analysis showed that the levels of interleukin (IL)-6 and interferon (IFN)-γ were positively associated with the frequencies of CD71 + cells, CECs, and CD45 + CECs, while IL-10 was negatively associated with them. Additionally, the levels of red blood cells (RBCs) were negatively associated with the percentage of CD45 + CECs. Conclusions CECs were expanded in sepsis and can serve as independent predictors of the development of NI and 30-day mortality. Low levels of RBCs and high levels of IL-6 and IFN-γ may contribute to the expansion of CECs in sepsis. Trial Registration ChiCTR, ChiCTR1900024887. Registered 2 August 2019, http://www.chictr.org.cn/showproj.aspx?proj=38645
Type of Medium:
Online Resource
ISSN:
1664-3224
DOI:
10.3389/fimmu.2022.830025
DOI:
10.3389/fimmu.2022.830025.s001
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2022
detail.hit.zdb_id:
2606827-8
