Optical computed tomography for spatially isotropic four-dimensional imaging of live single cells

Laimonas Kelbauskas, Rishabh Shetty, Bin Cao, Kuo Chen Wang, Dean Smith, Hong Wang, Shih-Hui Chao, Sandhya Gangaraju, Brian Ashcroft, Margaret Kritzer, Honor Glenn, Roger H. Johnson, Deirdre Meldrum

Research output: Contribution to journalArticle

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Abstract

Quantitative three-dimensional (3D) computed tomography (CT) imaging of living single cells enables orientationindependent morphometric analysis of the intricacies of cellular physiology. Since its invention, x-ray CT has become indispensable in the clinic for diagnostic and prognostic purposes due to its quantitative absorption-based imaging in true 3D that allows objects of interest to be viewed and measured from any orientation. However, x-ray CT has not been useful at the level of single cells because there is insufficient contrast to form an image. Recently, optical CT has been developed successfully for fixed cells, but this technology called Cell-CT is incompatible with live-cell imaging due to the use of stains, such as hematoxylin, that are not compatible with cell viability. We present a novel development of optical CT for quantitative, multispectral functional 4D (three spatial + one spectral dimension) imaging of living single cells. The method applied to immune system cells offers truly isotropic 3D spatial resolution and enables time-resolved imaging studies of cells suspended in aqueous medium. Using live-cell optical CT, we found a heterogeneous response to mitochondrial fission inhibition in mouse macrophages and differential basal remodeling of small (0.1 to 1 fl) and large (1 to 20 fl) nuclear and mitochondrial structures on a 20- to 30-s time scale in human myelogenous leukemia cells. Because of its robust 3D measurement capabilities, live-cell optical CT represents a powerful new tool in the biomedical research field.

Original languageEnglish (US)
Article numbere1602580
JournalScience advances
Volume3
Issue number12
DOIs
StatePublished - Dec 1 2017

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Optical Tomography
Tomography
X-Rays
Mitochondrial Dynamics
Myeloid Leukemia
Hematoxylin
Biomedical Research
Immune System
Cell Survival

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Optical computed tomography for spatially isotropic four-dimensional imaging of live single cells. / Kelbauskas, Laimonas; Shetty, Rishabh; Cao, Bin; Wang, Kuo Chen; Smith, Dean; Wang, Hong; Chao, Shih-Hui; Gangaraju, Sandhya; Ashcroft, Brian; Kritzer, Margaret; Glenn, Honor; Johnson, Roger H.; Meldrum, Deirdre.

In: Science advances, Vol. 3, No. 12, e1602580, 01.12.2017.

Research output: Contribution to journalArticle

Kelbauskas, L, Shetty, R, Cao, B, Wang, KC, Smith, D, Wang, H, Chao, S-H, Gangaraju, S, Ashcroft, B, Kritzer, M, Glenn, H, Johnson, RH & Meldrum, D 2017, 'Optical computed tomography for spatially isotropic four-dimensional imaging of live single cells', Science advances, vol. 3, no. 12, e1602580. https://doi.org/10.1126/sciadv.1602580
Kelbauskas, Laimonas ; Shetty, Rishabh ; Cao, Bin ; Wang, Kuo Chen ; Smith, Dean ; Wang, Hong ; Chao, Shih-Hui ; Gangaraju, Sandhya ; Ashcroft, Brian ; Kritzer, Margaret ; Glenn, Honor ; Johnson, Roger H. ; Meldrum, Deirdre. / Optical computed tomography for spatially isotropic four-dimensional imaging of live single cells. In: Science advances. 2017 ; Vol. 3, No. 12.
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