An optimized in vitro blood-brain barrier model reveals bidirectional transmigration of African trypanosome strains.
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AbstractThe transmigration of African trypanosomes across the human blood-brain barrier (BBB) is the critical step during the course of human African trypanosomiasis. The parasites Trypanosoma brucei gambiense and T. b. rhodesiense are transmitted to humans during the bite of tsetse flies. Trypanosomes multiply within the bloodstream and finally invade the central nervous system (CNS), which leads to the death of untreated patients. This project focused on the mechanisms of trypanosomal traversal across the BBB. In order to establish a suitable in vitro BBB model for parasite transmigration, different human cell lines were used, including ECV304, HBMEC and HUVEC, as well as C6 rat astrocytes. Validation of the BBB models with Escherichia coli HB101 and E. coli K1 revealed that a combination of ECV304 cells seeded on Matrigel as a semi-synthetic basement membrane and C6 astrocytes resulted in an optimal BBB model system. The BBB model showed selective permeability for the pathogenic E. coli K1 strain, and African trypanosomes were able to traverse the optimized ECV304-C6 BBB efficiently. Furthermore, coincubation indicated that paracellular macrophage transmigration does not facilitate trypanosomal BBB traversal. An inverse assembly of the BBB model demonstrated that trypanosomes were also able to transmigrate the optimized ECV304-C6 BBB backwards, indicating the relevance of the CNS as a possible reservoir of a relapsing parasitaemia.
CitationAn optimized in vitro blood-brain barrier model reveals bidirectional transmigration of African trypanosome strains. 2011, 157 (Pt 10):2933-41 Microbiology (Reading, Engl.)
JournalMicrobiology (Reading, England)
The following license files are associated with this item:
- Traversal of human and animal trypanosomes across the blood-brain barrier.
- Authors: Grab DJ, Kennedy PG
- Issue date: 2008 Oct
- African trypanosome interactions with an in vitro model of the human blood-brain barrier.
- Authors: Grab DJ, Nikolskaia O, Kim YV, Lonsdale-Eccles JD, Ito S, Hara T, Fukuma T, Nyarko E, Kim KJ, Stins MF, Delannoy MJ, Rodgers J, Kim KS
- Issue date: 2004 Oct
- [Human African trypanosomiasis].
- Authors: Dumas M, Bouteille B
- Issue date: 1996
- Entry of Trypanosoma brucei gambiense into microvascular endothelial cells of the human blood-brain barrier.
- Authors: Nikolskaia OV, Kim YV, Kovbasnjuk O, Kim KJ, Grab DJ
- Issue date: 2006 May 1
- Apolipoprotein L1 Variant Associated with Increased Susceptibility to Trypanosome Infection.
- Authors: Cuypers B, Lecordier L, Meehan CJ, Van den Broeck F, Imamura H, Büscher P, Dujardin JC, Laukens K, Schnaufer A, Dewar C, Lewis M, Balmer O, Azurago T, Kyei-Faried S, Ohene SA, Duah B, Homiah P, Mensah EK, Anleah F, Franco JR, Pays E, Deborggraeve S
- Issue date: 2016 Apr 12