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Spotting the right location— imaging approaches to resolve the intracellular localization of invasive pathogens

Abstract : Background A common strategy of microbial pathogens is to invade host cells during infection. The invading microbes explore different intracellular compartments to find their preferred niche. Scope of Review Imaging has been instrumental to unravel paradigms of pathogen entry, to identify their exact intracellular location, and to understand the underlying mechanisms for the formation of pathogen-containing niches. Here, we provide an overview of imaging techniques that have been applied to monitor the intracellular lifestyle of pathogens, focusing mainly on bacteria that either remain in vacuolar-bound compartments or rupture the endocytic vacuole to escape into the host's cellular cytoplasm. Major Conclusions We will depict common molecular and cellular paradigms that are preferentially exploited by pathogens. A combination of electron microscopy, fluorescence microscopy, and time-lapse microscopy has been the driving force to reveal underlying cell biological processes. Furthermore, the development of highly sensitive and specific fluorescent sensor molecules has allowed for the identification of functional aspects of niche formation by intracellular pathogens. General Significance Currently, we are beginning to understand the sophistication of the invasion strategies used by bacterial pathogens during the infection process- innovative imaging has been a key ingredient for this.
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https://hal-pasteur.archives-ouvertes.fr/pasteur-01899486
Contributor : Laurence Langlais <>
Submitted on : Friday, October 19, 2018 - 3:13:19 PM
Last modification on : Thursday, July 23, 2020 - 4:54:03 PM

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Alexandre Bobard, Nora Mellouk, Jost Enninga. Spotting the right location— imaging approaches to resolve the intracellular localization of invasive pathogens. BBA - Biochimica et Biophysica Acta, Elsevier, 2011, Special Issue entitled Nanotechnologies - Emerging Applications in Biomedicine., 1810 (3), pp.297 - 307. ⟨10.1016/j.bbagen.2010.10.008⟩. ⟨pasteur-01899486⟩

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