Multi-modal imaging reveals dynamic interactions of Staphylococcus aureus within human neutrophils
Ho, Y. X.; Steele, E.; Prince, L.; Cadby, A.
Show abstract
Staphylococcus aureus is an important human pathogen that causes a wide range of infections. Neutrophils are an essential component of our innate immune system and understanding S. aureus-neutrophil interactions on a sub-cellular level is crucial to developing new therapeutic strategies to promote immunity during S. aureus infections. To this end we have developed a multi-modal imaging platform capable of following host-pathogen processes in biological systems, this is achieved by switching imaging modalities between a low photo-toxicity and low resolution imaging modality through an increasing illumination intensity to achieve live super-resolution imaging. This novel imaging platform was applied to the study of human neutrophils infected by S. aureus. We show that we can image different infection stages of S. aureus in live neutrophils with super resolution microscopy. We see evidence of binary fission occurring in intracellular S. aureus within a neutrophil.
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