ZFIN ID: ZDB-PUB-190108-19
Optical imaging of metabolic dynamics in animals
Shi, L., Zheng, C., Shen, Y., Chen, Z., Silveira, E.S., Zhang, L., Wei, M., Liu, C., de Sena-Tomas, C., Targoff, K., Min, W.
Date: 2018
Source: Nature communications   9: 2995 (Journal)
Registered Authors: Targoff, Kimara
Keywords: none
MeSH Terms:
  • Animals
  • COS Cells
  • Caenorhabditis elegans
  • Carbon/chemistry
  • Cell Line, Tumor
  • Chlorocebus aethiops
  • Contrast Media
  • Deuterium
  • Deuterium Oxide
  • HeLa Cells
  • Humans
  • Image Processing, Computer-Assisted
  • Lipid Metabolism
  • Lipids/chemistry
  • Macromolecular Substances
  • Metabolism*
  • Mice
  • Mice, Inbred C57BL
  • Neoplasm Transplantation
  • Optical Imaging/methods*
  • Scattering, Radiation
  • Spectrum Analysis, Raman*
  • Zebrafish
PubMed: 30082908 Full text @ Nat. Commun.
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ABSTRACT
Direct visualization of metabolic dynamics in living animals with high spatial and temporal resolution is essential to understanding many biological processes. Here we introduce a platform that combines deuterium oxide (D2O) probing with stimulated Raman scattering (DO-SRS) microscopy to image in situ metabolic activities. Enzymatic incorporation of D2O-derived deuterium into macromolecules generates carbon-deuterium (C-D) bonds, which track biosynthesis in tissues and can be imaged by SRS in situ. Within the broad vibrational spectra of C-D bonds, we discover lipid-, protein-, and DNA-specific Raman shifts and develop spectral unmixing methods to obtain C-D signals with macromolecular selectivity. DO-SRS microscopy enables us to probe de novo lipogenesis in animals, image protein biosynthesis without tissue bias, and simultaneously visualize lipid and protein metabolism and reveal their different dynamics. DO-SRS microscopy, being noninvasive, universally applicable, and cost-effective, can be adapted to a broad range of biological systems to study development, tissue homeostasis, aging, and tumor heterogeneity.
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