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Nat Commun ; 12(1): 4677, 2021 07 29.
Article in English | MEDLINE | ID: covidwho-1387356

ABSTRACT

SARS-CoV-2 infection can affect all human beings, including pregnant women. Thus, understanding the immunological changes induced by the virus during pregnancy is nowadays of pivotal importance. Here, using peripheral blood from 14 pregnant women with asymptomatic or mild SARS-CoV-2 infection, we investigate cell proliferation and cytokine production, measure plasma levels of 62 cytokines, and perform a 38-parameter mass cytometry analysis. Our results show an increase in low density neutrophils but no lymphopenia or gross alterations of white blood cells, which display normal levels of differentiation, activation or exhaustion markers and show well preserved functionality. Meanwhile, the plasma levels of anti-inflammatory cytokines such as interleukin (IL)-1RA, IL-10 and IL-19 are increased, those of IL-17, PD-L1 and D-dimer are decreased, but IL-6 and other inflammatory molecules remain unchanged. Our profiling of antiviral immune responses may thus help develop therapeutic strategies to avoid virus-induced damages during pregnancy.


Subject(s)
COVID-19/immunology , Cytokines/blood , Inflammation/immunology , Pregnancy Complications, Infectious/immunology , Pregnancy Complications, Infectious/virology , SARS-CoV-2/immunology , Adolescent , Adult , Asymptomatic Infections , Biomarkers/blood , COVID-19/blood , COVID-19/virology , Case-Control Studies , Cross-Sectional Studies , Cytokines/immunology , Female , Humans , Inflammation/blood , Inflammation/prevention & control , Inflammation/virology , Middle Aged , Pregnancy , Pregnancy Complications, Infectious/blood , SARS-CoV-2/isolation & purification , Young Adult
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