Cited by 58Malaria Research and ControlReproductive System and PregnancyPregnancy and preeclampsia studies

Immunologic activation of human syncytiotrophoblast by Plasmodium falciparum

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Lucchi, Naomi W, Peterson, David S, Moore, Julie M·2008·Malaria Journal

Abstract

Background: Malaria during pregnancy is characterized by the sequestration of malaria-infected red blood cells (iRBC) in the intervillous spaces of the placenta, often accompanied by the infiltration of maternal mononuclear cells, causing substantial maternal and foetal/infant morbidity. The iRBC bind to receptors expressed by the syncytiotrophoblast (ST). How ST responds to this interaction remains poorly understood. Because it is known that ST is immunoactive and can respond to infectious agents, the consequences of this ST-iRBC interaction should be investigated. Methods: An in vitro system was used to assess the biochemical and immunological changes induced in ST by ST-adherent iRBCs. Changes in ST mitogen-activated protein kinase (MAPK) activation were assessed by immunoblotting and mRNA expression levels of selected cytokine and chemokines in primary ST bound by iRBC were determined using real-time, reverse transcription PCR. In addition, secreted cytokine and chemokine proteins were assayed by standard ELISA, and chemotaxis of PBMC was assessed using a two-chamber assay system. Results: Following iRBC/ST interaction, ST C-Jun N-terminal kinase 1 (JNK1) was activated and modest increases in the mRNA expression of TGF-β and IL-8/CXCL8 were observed. In addition, this interaction increased secretion of MIF and MIP-1α/CCL3 by ST and induced migration of PBMC towards iRBC-stimulated ST. Conclusion: Results from this study provide the first evidence that ST participates in shaping the local immunological milieu and in the recruitment of maternal immune cells to the maternal blood space during placental malaria infection.

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Authors
Lucchi, N. W., Peterson, D. S., & Moore, J. M.
Affiliations
  • Centers for Disease Control and Prevention (US)
  • University of Georgia (US)
Corresponding author
Moore, Julie M
Venue
Malaria Journal
Published
2008-02-29
Volume
7
Issue
1
Pages
42-42
ISSN
1475-2875 (ISSN-L)
OpenAlex
W2081023512
Cited by
58
References
54
Citations by year
2026: 2 · 2025: 2 · 2023: 2 · 2022: 2 · 2021: 3 · 2020: 2 · 2019: 3 · 2018: 3 · 2017: 3 · 2016: 2 · 2015: 8 · 2014: 4 · 2013: 6 · 2012: 5
FWCI
3.64
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Malaria Journal (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • University of Georgia
  • National Institutes of Health
  • University of Georgia Research Foundation
  • National Institute of Allergy and Infectious Diseases (R01AI050240)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Malaria Research and Control
  • Life Sciences › Immunology and Microbiology › Immunology › Reproductive System and Pregnancy
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
Keywords
syncytiotrophoblast, Plasmodium falciparum, placental malaria, malaria in pregnancy, MAPK signaling, cytokine and chemokine expression, TGF-beta, IL-8/CXCL8, macrophage migration inhibitory factor, placental immunity
MeSH terms
Animals, Cell Adhesion, Cell Line, Chemotaxis, Leukocyte, Erythrocytes, Female, Humans, Placenta, Plasmodium falciparum, RNA, Messenger, Trophoblasts, Blotting, Western, Gene Expression, Cytokines, Coculture Techniques, Cell Culture Techniques, Reverse Transcriptase Polymerase Chain Reaction, Mitogen-Activated Protein Kinase 8, Cell Migration Assays

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