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Monocytes from Pregnant Women with Pre‐Eclampsia are Polarized to a M1 Phenotype
Author(s) -
Medeiros Leonardo T. L.,
Peraçoli José C.,
BannwartCastro Camila F.,
Romão Mariana,
Weel Ingrid C.,
Golim Marjorie A.,
Oliveira Leandro G.,
Kurokawa Cilmery S.,
Medeiros Borges Vera T.,
Peraçoli Maria T. S.
Publication year - 2014
Publication title -
american journal of reproductive immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.071
H-Index - 97
eISSN - 1600-0897
pISSN - 1046-7408
DOI - 10.1111/aji.12222
Subject(s) - cd163 , cd64 , monocyte , tumor necrosis factor alpha , receptor , medicine , tlr4 , flow cytometry , immunology , cd16 , interleukin 10 , interleukin 6 , andrology , cd14 , phenotype , endocrinology , inflammation , cytokine , biology , immune system , gene , biochemistry , cd3 , cd8
Problem This study evaluated whether the monocyte inflammatory state in pre‐eclampsia ( PE ) might be associated with polarization to either M1 classically or M2 alternatively activated monocyte subsets. Method of Study Eighty‐five women with ( PE ) and 52 normotensive ( NT ) pregnant women matched for gestational age were included. Expression of surface receptors characteristic of M1, such as T oll‐like receptor ( TLR )2, TLR 4, and CD 64, or M2, such as CD 163 and CD 206 monocyte subsets were evaluated in peripheral blood monocytes by flow cytometry. Tumour necrosis factor‐alpha ( TNF ‐α), interleukin‐( IL )‐12p40, IL ‐12p70, and IL ‐10 were evaluated in the supernatant of monocyte cultures by ELISA . Results Expression of TLR 4 and CD 64 by monocytes from pre‐eclamptic women was significantly higher, while the expression of CD 163 and CD 206 expression was significantly lower compared with NT pregnant women. Endogenous production of TNF ‐α, IL ‐12p40, and IL ‐12p70 by monocytes was increased, while synthesis of IL ‐10 was lower in women with PE than in NT pregnant women. Conclusions Monocytes from women with PE are classically activated, producing higher levels of pro‐inflammatory cytokines, and express surface receptors characteristic of the M1 subset. These results provide evidence that the systemic inflammatory environment in PE may differentiate and polarize these cells to the M1 phenotype.