Abstract / Description of output
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.
Original language | English |
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Pages (from-to) | 421-31 |
Number of pages | 11 |
Journal | Nature Protocols |
Volume | 7 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2012 |
Keywords / Materials (for Non-textual outputs)
- Animals
- Aorta
- Embryo, Mammalian
- Fluorescence
- Hematopoietic Stem Cells
- Image Processing, Computer-Assisted
- Immunohistochemistry
- Mice
- Microscopy, Confocal
- Staining and Labeling
- Tissue Fixation