Cited by 150Malaria Research and ControlBacterial Infections and VaccinesNeuroinflammation and Neurodegeneration Mechanisms

Brain microvessel cross‐presentation is a hallmark of experimental cerebral malaria

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Howland, Shanshan W., Poh, Chek Meng, Gun, Sin Yee, Claser, Carla, Malleret, Benoit, Shastri, Nilabh, Ginhoux, Florent, Grotenbreg, Gijsbert M. +1 more·2013·EMBO Molecular Medicine

Abstract

Cerebral malaria is a devastating complication of Plasmodium falciparum infection. Its pathogenesis is complex, involving both parasite‐ and immune‐mediated events. CD8 + T cells play an effector role in murine experimental cerebral malaria (ECM) induced by Plasmodium berghei ANKA (PbA) infection. We have identified a highly immunogenic CD8 epitope in glideosome‐associated protein 50 that is conserved across rodent malaria species. Epitope‐specific CD8 + T cells are induced during PbA infection, migrating to the brain just before neurological signs manifest. They are functional, cytotoxic and can damage the blood–brain barrier in vivo . Such CD8 + T cells are also found in the brain during infection with parasite strains/species that do not induce neuropathology. We demonstrate here that PbA infection causes brain microvessels to cross‐present parasite antigen, while non‐ECM‐causing parasites do not. Further, treatment with fast‐acting anti‐malarial drugs before the onset of ECM reduces parasite load and thus antigen presentation in the brain, preventing ECM death. Thus our data suggest that combined therapies targeting both the parasite and host antigen‐presenting cells may improve the outcome of CM patients.

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Crossref · 10.1002/emmm.201202273

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  • In rodents, BBB breakdown and fatal edema are caused by parasite-specific CD8+ T cell engagement of cerebrovascular endothelial cells that cross-present parasite antigen.

    “In rodents, it was revealed that BBB breakdown and fatal edema are caused by parasite-specific CD8+ T cell engagement of cerebrovascular endothelial cells that cross-present parasite antigen (157, 158).”

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Authors
Howland, S. W., Poh, C. M., Gun, S. Y., Claser, C., Malleret, B., Shastri, N., Ginhoux, F., Grotenbreg, G. M., & Rénia, L.
Affiliations
  • Agency for Science, Technology and Research (SG)
  • University of California, Berkeley (US)
  • National University of Singapore (SG)
Corresponding author
Rénia, Laurent
Venue
EMBO Molecular Medicine
Published
2013-05-16
Volume
5
Issue
7
Pages
984-99
ISSN
  • 1757-4676 (ISSN-L)
  • 1757-4684
OpenAlex
W2114900483
Cited by
150
References
61
Citations by year
2026: 3 · 2025: 11 · 2024: 9 · 2023: 13 · 2022: 5 · 2021: 11 · 2020: 5 · 2019: 16 · 2018: 10 · 2017: 21 · 2016: 12 · 2015: 17 · 2014: 13 · 2013: 4
FWCI
15.64
Type
journal article
Language
en
Open access
Locations
  • EMBO Molecular Medicine (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • National University of Singapore (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • Wellcome Trust
  • National Research Foundation
  • Agency for Science, Technology and Research
  • National University of Singapore
  • National Research Foundation Singapore (NRF2007NRF-RF001-226)
  • National Institute of Allergy and Infectious Diseases (R37AI060040)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Malaria Research and Control
  • Life Sciences › Immunology and Microbiology › Microbiology › Bacterial Infections and Vaccines
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
experimental cerebral malaria, Plasmodium falciparum, Plasmodium berghei ANKA, CD8+ T cells, cross-presentation, cerebral microvasculature, blood-brain barrier disruption, infection intensity, neuropathology
MeSH terms
Amino Acid Sequence, Animals, Antigens, Protozoan, Antimalarials, Blood-Brain Barrier, Brain, Female, Humans, Mice, Inbred C57BL, Molecular Sequence Data, Plasmodium berghei, Receptors, Antigen, T-Cell, alpha-beta, Malaria, Cerebral, CD8-Positive T-Lymphocytes, Cross-Priming, Mice, Microvessels, Parasite Load

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