Abstract
The development of the CreER/LoxP system has enabled temporal control and cell type specificity of gene activation or repression. A common application of this system involves lineage tracing and examining the proliferative capacity of cells of interest through clonal analysis. Here, we describe a method of performing 2- and 3-dimensional clonal analysis of cardiomyocytes (CMs) using the Rainbow reporter mouse model. We outline the process of using the Cell Counter plug-in tool in ImageJ to quantify the number of clones as well as the number of cells within each clone. For 3-dimensional analysis, we describe the tissue clearing technique, CLARITY, in conjunction with light-sheet imaging to obtain digital slices of the whole heart that can be reconstructed and clone volumes quantified using the Imaris software.
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Acknowledgments
This work was supported by the F31 HL144057 (N.B.N.), NIH DP2 HL127728 and UCLA Broad Stem Cell Research Center-Rose Hills Foundation Research Award (R.A.).
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Nguyen, N.B., Fernandez, G.E., Ding, Y., Hsiai, T., Ardehali, R. (2021). In Vivo Clonal Analysis of Cardiomyocytes. In: Poss, K.D., Kühn, B. (eds) Cardiac Regeneration. Methods in Molecular Biology, vol 2158. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-0668-1_18
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DOI: https://doi.org/10.1007/978-1-0716-0668-1_18
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