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Decidual memory T‐cell subsets and memory T‐cell stimulatory cytokines in early‐ and late‐onset preeclampsia

Kieffer, T. E. C., Laskewitz, A., Vledder, A., Scherjon, S. A., Faas, M. M. & Prins, J. R., 8-Jul-2020, In : American Journal of Reproductive Immunology. 14 p., 13293.

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Problem Preeclampsia is a major cause of fetal and maternal mortality and morbidity. Disturbed fetal-maternal immune tolerance, and therewith memory T cells, might be involved in its etiology. This study aims to give insight into memory T-cell populations and its associated cytokines in the decidual layers in early-onset preeclampsia (EO-PE) and late-onset preeclampsia (LO-PE). Method of Study Lymphocytes were isolated from the decidua parietalis and basalis from EO-PE (n = 6), LO-PE (n = 8) and healthy (n = 15) pregnancies. CD4(+)and CD8(+)central- (CCR7(+)), effector- (CCR7(-)), tissue resident- (CD103(+)), and regulatory- (Foxp3(+)) memory cell (CD45RO(+)) populations and their activation status (CD69(+)) were analyzed using flow cytometry. qRT-PCR analysis was performed on decidua parietalis and basalis biopsies to detect mRNA expression ofinterferon-gamma,interleukin-1B,IL2,IL6,IL7,IL8,IL10,IL15, andIL23. Results CD4(+)central-memory (CM) cell proportions were lower in the decidua parietalis in LO-PE (P <.0001) and EO-PE (P <.01) compared to healthy pregnancies. CD8(+)memory (P <.05) and CD8(+)CM (P <.01) cell proportions were also lower in the decidua parietalis in EO-PE compared to healthy pregnancies. This was accompanied by higherIL15(P <.05) andIL23(P <.05) and lowerIL7(P <.05) mRNA expression in decidua basalis biopsies from EO-PE compared to healthy pregnancies, analyzed by qPCR. Conclusion In conclusion, decidual memory T-cell proportions, their activation status, and associated cytokines are altered in preeclampsia and might therefore be involved in fetal-maternal immune tolerance and the pathophysiology of preeclampsia.

Original languageEnglish
Article number13293
Number of pages14
JournalAmerican Journal of Reproductive Immunology
Early online date23-Jun-2020
Publication statusPublished - 8-Jul-2020

    Keywords

  • decidua, early-onset preeclampsia, late-onset preeclampsia, memory T cell, pregnancy, HUMAN PLACENTA, DIFFERENTIAL DISTRIBUTION, IMMUNE-RESPONSE, PREGNANCY, PHENOTYPE, PROMOTES, GENERATION, EXPRESSION, TOLERANCE, SURVIVAL

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