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Immunomodulatory markers in maternal and fetal blood and placental tissue from women with diabetes or Mild Gestational Hyperglycemia

Abstract

Diabetes and hyperglycemia adversely affect the adaptation of the maternal immune system to pregnancy, impairing fetal immune development by mechanisms still not fully understood. OBJECTIVE - To assess immunoglobulins, cytokines and cells involved in the regulation and maintenance of pregnancy as immunomodulatory markers in umbilical cord blood, maternal blood, and placental tissue obtained from pregnancies complicated by either diabetes or mild hyperglycemia. METHOD - This cross-sectional study will include pregnant women with overt /gestational diabetes or mild hyperglycemia and their babies. Maternal blood collection will be performed at 37 weeks of gestation, before labor begins. Umbilical cord blood and placental tissue will be collected upon delivery. All samples will be processed according to specific protocols. Assessment will include : IgG concentration (total and subclasses) by turbidimetry (ELISA); FcRn immunoglobulin G (IgG) receptor placental expression and linkage analysis (flow cytometry and immunoblotting); FAS ligand expression; cytokine immunophenotyping and quantification (flow cytometry). Will be statistically analyzed considering p < 0.05 as significant. (AU)

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VEICULO: TITULO (DATA)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
QUEIROZ, ADRIELE A.; FRANCA, EDUARDO L.; HARA, CRISTIANE C. P.; HONORIO, MARIANA S.; FAGUNDES, DANNY L. G.; CALDERON, IRACEMA M. P.; HONORIO-FRANCA, ADENILDA C.. Phenotypic characterization of regulatory T cells populations in maternal blood, cord blood and placenta from diabetic mothers. Journal of Maternal-Fetal & Neonatal Medicine, v. 32, n. 7, p. 1098-1104, . (12/24212-4, 13/13017-9)
DE SOUZA, E. G.; HARA, C. C. P.; FAGUNDES, D. L. G.; DE QUEIROZ, A. A.; MORCELI, G.; CALDERON, I. M. P.; FRANCA, E. L.; HONORIO-FRANCA, A. C.. Maternal-Foetal Diabetes Modifies Neonatal Fc Receptor Expression on Human Leucocytes. Scandinavian Journal of Immunology, v. 84, n. 4, p. 237-244, . (13/13017-9, 12/24212-4, 12/18033-0)
PERNET HARA, CRISTIANE DE CASTRO; FRANCA, EDUARDO LUZIA; GOMES FAGUNDES, DANNY LAURA; DE QUEIROZ, ADRIELE ATAIDES; CUNHA RUDGE, MARILZA VIEIRA; HONORIO-FRANCA, ADENILDA CRISTINA; PARANHOS CALDERON, IRACEMA DE MATTOS. Characterization of Natural Killer Cells and Cytokines in Maternal Placenta and Fetus of Diabetic Mothers. CLINICAL & DEVELOPMENTAL IMMUNOLOGY, . (13/13017-9, 12/24212-4)

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