Journal
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, VOL 63
Volume 63, Issue -, Pages 225-239Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-physchem-032511-143818
Keywords
fluorescence; localization; organelles; phenotype; reconstruction
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Funding
- NCRR NIH HHS [RR019664, P41 RR019664] Funding Source: Medline
- NIDA NIH HHS [R01 DA030320, DA030320] Funding Source: Medline
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Living cells are structured to create a range of microenvironments that support specific chemical reactions and processes. Understanding how cells function therefore requires detailed knowledge of both the subcellular architecture and the location of specific molecules within this framework. Here we review the development of two correlated cellular imaging techniques that fulfill this need. Cells are first imaged using cryogenic fluorescence microscopy to determine the location of molecules of interest that have been labeled with fluorescent tags. The same specimen is then imaged using soft X-ray tomography to generate a high-contrast, 3D reconstruction of the cells. Data from the two modalities are then combined to produce a composite, information-rich view of the cell. This correlated imaging approach can be applied across the spectrum of problems encountered in cell biology, from basic research to biotechnological and biomedical applications such as the optimization of biofuels and the development of new pharmaceuticals.
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