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Visualization of Cellular Components in a Mammalian Cell with Liquid-Cell Transmission Electron Microscopy

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Besztejan,  Stephanie
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Chemistry Department, Institute for Biochemistry and Molecular Biology, University of Hamburg, Martin-Luther-King Platz 6, 20146 Hamburg, Germany;
The Hamburg Centre for Ultrafast Imaging, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany;

/persons/resource/persons136092

Keskin,  Sercan
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, Geb. 99 (CFEL), 22761 Hamburg, Germany;

Externe Ressourcen

https://doi.org/10.1017/S1431927616012708
(Verlagsversion)

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Zitation

Besztejan, S., Keskin, S., Manz, S., Kassier, G., Bücker, R., Venegas-Rojas, D., et al. (2017). Visualization of Cellular Components in a Mammalian Cell with Liquid-Cell Transmission Electron Microscopy. Microscopy and Microanalysis, 23(1): 55. 46. doi:10.1017/S1431927616012708.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002C-7E14-9
Zusammenfassung
We present liquid-cell transmission electron microscopy (liquid-cell TEM) imaging of fixed and non-fixed prostate cancer cells (PC3 and LNCaP) with high resolution in a custom developed silicon nitride liquid cell. Fixed PC3 cells were imaged for 90–120 min without any discernable damage. High contrast on the cellular structures was obtained even at low electron doses (~2.5 e-/nm2 per image). The images show distinct structures of cell compartments (nuclei and nucleoli) and cell boundaries without any further sample embedding, dehydration, or staining. Furthermore, we observed dynamics of vesicles trafficking from the cell membrane in consecutive still frames in a non-fixed cell. Our findings show that liquid-cell TEM, operated at low electron dose, is an excellent tool to investigate dynamic events in non-fixed cells with enough spatial resolution (few nm) and natural amplitude contrast to follow key intracellular processes.