In Situ Detection of Dormant Trypanosoma cruzi Amastigotes Using Bioluminescent-Fluorescent Reporters

  • Fernando Sánchez-Valdéz
  • Angel Padilla
Part of the Methods in Molecular Biology book series (MIMB, volume 1955)


Chagas disease agent, Trypanosoma cruzi, is capable to persist after prolonged drug treatment using effective drugs. The reason of treatment failure is not known, but recent development of highly sensible bioluminescence imaging coupled to tissue clarification techniques has made possible the detection of individual amastigotes within chronically infected murine tissues and the study of their replicative status. In this chapter, we provide a step-by-step explanation for these protocols that allowed the visualization of nonproliferating amastigotes in tissues of chronically infected mice for the first time.

Key words

Clarification Dormancy Proliferation Bioluminescence Luciferase 



We are grateful to Dr. Rick Tarleton, Wei Wang, Dylan Orr, as well as Julie Nelson from the CTEGD Flow Cytometry Core and Muthugapatti Kandasamy from the Biomedical Microscopy Core. This work was supported by US National Institutes of Health grants AI108265 and AI124692 to Rick Tarleton.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Fernando Sánchez-Valdéz
    • 1
    • 2
  • Angel Padilla
    • 1
  1. 1.Center for Tropical and Emerging Global Diseases, University of GeorgiaAthensUSA
  2. 2.Instituto de Patología Experimental-CONICET, Universidad Nacional de SaltaSaltaArgentina

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