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Quantitative 3D Imaging of Trypanosoma cruzi-Infected Cells, Dormant Amastigotes, and T Cells in Intact Clarified Organs
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Trypanosoma cruzi: single cell live imaging inside infected tissues
Bianca Lima Ferreira1, Cristina Mary Orikaza1, Esteban Mauricio Cordero1
1Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM-UNIFESP), Rua Botucatu 862 6th floor, São Paulo, São Paulo, Brazil.
Cellular Microbiology
|December 8, 2015
Summary
Researchers developed a simple method to visualize live single-cell Trypanosoma cruzi parasites within mammalian host tissues. This breakthrough allows for the direct observation of parasites, aiding Chagas disease research.
Area of Science:
- Parasitology
- Infectious Diseases
- Microscopy
Background:
- Imaging live Trypanosoma cruzi parasites is common in labs.
- Identifying parasites within opaque mammalian host tissues is challenging.
Purpose of the Study:
- To develop a simple method for observing live single-cell Trypanosoma cruzi parasites within mammalian host tissues.
Main Methods:
- Infected BALB/c or C57BL/6 mice (DsRed-CL or GFP-G trypomastigotes) had organs removed and sectioned.
- Ex vivo organ sections were analyzed using confocal microscopy.
Main Results:
- Successfully imaged individual amastigotes, intermediate forms, and motile trypomastigotes.
- Enabled the first-time visualization of live parasites within infected mammalian tissues.
Conclusions:
- This method overcomes the opacity of host tissues for parasite imaging.
- Facilitates detailed study of Trypanosoma cruzi infection dynamics in vivo.
