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Peripheral Blood Mononuclear Cells and Serum Cytokines in Patients with Lupus Nephritis After COVID-19

Overview
Journal Int J Mol Sci
Publisher MDPI
Date 2024 Aug 10
PMID 39125849
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Abstract

Systemic lupus erythematosus (SLE) patients have an increased risk of infections and infection-related mortality. Therefore, during the global SARS-CoV-2 pandemic, SLE patients were particularly vulnerable to SARS-CoV-2 infections. Also, compared to other patients, SLE patients seem to develop more severe manifestations of coronavirus disease 2019 (COVID-19), with higher rates of hospitalization, invasive ventilation requirements, or death. This study evaluated the immune parameters after SARS-CoV-2 infection in SLE patients. We analyzed subpopulations of peripheral blood cells collected from patients with renal manifestation of SLE (lupus nephritis, LN). LN patients were divided into two subgroups: those unexposed to SARS-CoV-2 (LN CoV-2(-)) and those who had confirmed COVID-19 (LN-CoV-2(+)) six months earlier. We analyzed basic subpopulations of T cells, B cells, monocytes, dendritic cells (DCs), and serum cytokines using flow cytometry. All collected data were compared to a healthy control group without SARS-CoV-2 infection in medical history. LN patients were characterized by a decreased percentage of helper T (Th) cells and an increased percentage of cytotoxic T (Tc) cells regardless of SARS-CoV-2 infection. LN CoV-2(+) patients had a higher percentage of regulatory T cells (Tregs) and plasmablasts (PBs) and a lower percentage of non-switched memory (NSM) B cells compared to LN CoV-2(-) patients or healthy controls (HC CoV-2(-)). LN patients had a higher percentage of total monocytes compared with HC CoV-2(-). LN CoV-2(+) patients had a higher percentage of classical and intermediate monocytes than LN CoV-2(-) patients and HC CoV-2(-). LN CoV-2(+) patients had higher serum IL-6 levels than HC CoV-2(-), while LN CoV-2(-) patients had higher levels of serum IL-10. LN patients are characterized by disturbances in the blood's basic immunological parameters. However, SARS-CoV-2 infection influences B-cell and monocyte compartments.

References
1.
Quaglia M, Merlotti G, De Andrea M, Borgogna C, Cantaluppi V . Viral Infections and Systemic Lupus Erythematosus: New Players in an Old Story. Viruses. 2021; 13(2). PMC: 7916951. DOI: 10.3390/v13020277. View

2.
Galan M, Vigon L, Fuertes D, Murciano-Anton M, Casado-Fernandez G, Dominguez-Mateos S . Persistent Overactive Cytotoxic Immune Response in a Spanish Cohort of Individuals With Long-COVID: Identification of Diagnostic Biomarkers. Front Immunol. 2022; 13:848886. PMC: 8990790. DOI: 10.3389/fimmu.2022.848886. View

3.
Illescas-Montes R, Corona-Castro C, Melguizo-Rodriguez L, Ruiz C, Costela-Ruiz V . Infectious processes and systemic lupus erythematosus. Immunology. 2019; 158(3):153-160. PMC: 6797874. DOI: 10.1111/imm.13103. View

4.
Sekine T, Perez-Potti A, Rivera-Ballesteros O, Stralin K, Gorin J, Olsson A . Robust T Cell Immunity in Convalescent Individuals with Asymptomatic or Mild COVID-19. Cell. 2020; 183(1):158-168.e14. PMC: 7427556. DOI: 10.1016/j.cell.2020.08.017. View

5.
Doria A, Canova M, Tonon M, Zen M, Rampudda E, Bassi N . Infections as triggers and complications of systemic lupus erythematosus. Autoimmun Rev. 2008; 8(1):24-8. DOI: 10.1016/j.autrev.2008.07.019. View