We describe a protocol to volumetrically image fluorescent protein labeled cells deep inside intact embryonic and postnatal hearts. Utilizing tissue-clearing methods in combination with whole mount staining, single fluorescent protein-labeled cells inside an embryonic or postnatal heart can be imaged clearly and accurately.
Shaikh Qureshi, W. M., Miao, L., Shieh, D., Li, J., Lu, Y., Hu, S., Barroso, M., Mazurkiewicz, J., Wu, M. Imaging Cleared Embryonic and Postnatal Hearts at Single-cell Resolution. J. Vis. Exp. (116), e54303, doi:10.3791/54303 (2016).