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Nat Protoc. 2012 Feb 9;7(3):421-31. doi: 10.1038/nprot.2011.441.

Whole-mount three-dimensional imaging of internally localized immunostained cells within mouse embryos.

Author information

1
Department of Cell Biology, Erasmus Medical Center Stem Cell Institute, Erasmus Medical Center, Rotterdam, The Netherlands. csity@nus.edu.sg

Abstract

We describe a three-dimensional (3D) confocal imaging technique to characterize and enumerate rare, newly emerging hematopoietic cells located within the vasculature of whole-mount preparations of mouse embryos. However, the methodology is broadly applicable for examining the development and 3D architecture of other tissues. Previously, direct whole-mount imaging has been limited to external tissue layers owing to poor laser penetration of dense, opaque tissue. Our whole-embryo imaging method enables detailed quantitative and qualitative analysis of cells within the dorsal aorta of embryonic day (E) 10.5-11.5 embryos after the removal of only the head and body walls. In this protocol we describe the whole-mount fixation and multimarker staining procedure, the tissue transparency treatment, microscopy and the analysis of resulting images. A typical two-color staining experiment can be performed and analyzed in ∼6 d.

PMID:
22322215
PMCID:
PMC3629302
DOI:
10.1038/nprot.2011.441
[Indexed for MEDLINE]
Free PMC Article

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