Abstract / Description of output
Human African trypanosomiasis, or sleeping sickness, is caused by the protozoan
parasite Trypanosoma brucei and induces profound reactivity of glial cells and
neuroinflammation when the parasites colonise the central nervous system. However, the transcriptional and functional responses of the brain to chronic T. brucei infection remain poorly understood. By integrating single cell and spatial transcriptomics of the mouse brain, we identify that glial responses triggered by infection are readily detected in the proximity to the circumventricular organs, including the lateral and 3rd ventricle.
This coincides with the spatial localisation of both slender and stumpy forms of T. brucei.
Furthermore, in silico predictions and functional validations led us to identify a previously unknown crosstalk between homeostatic microglia and Cd138+ 51 plasma cells mediated by IL-10 and B cell activating factor (BAFF) signalling. This study provides important insights and resources to improve understanding of the molecular and cellular responses in the brain during infection with African trypanosomes.
parasite Trypanosoma brucei and induces profound reactivity of glial cells and
neuroinflammation when the parasites colonise the central nervous system. However, the transcriptional and functional responses of the brain to chronic T. brucei infection remain poorly understood. By integrating single cell and spatial transcriptomics of the mouse brain, we identify that glial responses triggered by infection are readily detected in the proximity to the circumventricular organs, including the lateral and 3rd ventricle.
This coincides with the spatial localisation of both slender and stumpy forms of T. brucei.
Furthermore, in silico predictions and functional validations led us to identify a previously unknown crosstalk between homeostatic microglia and Cd138+ 51 plasma cells mediated by IL-10 and B cell activating factor (BAFF) signalling. This study provides important insights and resources to improve understanding of the molecular and cellular responses in the brain during infection with African trypanosomes.
Original language | English |
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Article number | 5752 |
Journal | Nature Communications |
Volume | 13 |
Issue number | 1 |
Early online date | 30 Sept 2022 |
DOIs | |
Publication status | Published - 30 Sept 2022 |