Projects per year
Abstract
Trypanosoma brucei is an extracellular parasite that causes sleeping sickness. In mammalian hosts, trypanosomes are thought to exist in two major niches: early in infection, they populate the blood; later, they breach the blood-brain barrier. Working with a well-established mouse model, we discovered that adipose tissue constitutes a third major reservoir for T. brucei. Parasites from adipose tissue, here termed adipose tissue forms (ATFs), can replicate and were capable of infecting a naive animal. ATFs were transcriptionally distinct from bloodstream forms, and the genes upregulated included putative fatty acid β-oxidation enzymes. Consistent with this, ATFs were able to utilize exogenous myristate and form β-oxidation intermediates, suggesting that ATF parasites can use fatty acids as an external carbon source. These findings identify the adipose tissue as a niche for T. brucei during its mammalian life cycle and could potentially explain the weight loss associated with sleeping sickness.
Original language | English |
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Pages (from-to) | 837-848 |
Number of pages | 13 |
Journal | Cell Host & Microbe |
Volume | 19 |
Issue number | 6 |
Early online date | 26 May 2016 |
DOIs | |
Publication status | Published - 8 Jun 2016 |
Keywords
- African trypanosomes
- Fat
- Mouse infection
- Fatty acid β-oxidation
- Metabolism
- Transcriptome
Fingerprint
Dive into the research topics of 'Trypanosoma brucei parasites occupy and functionally adapt to the adipose tissue in mice'. Together they form a unique fingerprint.Projects
- 3 Finished
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lipid catabolism: Investigating the typanosomatid lysosome and its role in lipid catabolism.
Smith, T. K. (PI)
1/06/15 → 31/01/19
Project: Standard
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Investigating Trypanosoma brucei's: Investigating Trypanosoma Brucei's Unusual Inositol Metabolism
Smith, T. K. (PI)
1/01/11 → 31/03/14
Project: Standard
Profiles
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Terry K Smith
- School of Biology - Director of Biomedical Sciences Research Complex, Professor
- Sir James Mackenzie Institute for Early Diagnosis
- Biomedical Sciences Research Complex
Person: Academic