Journal
CELLULAR AND MOLECULAR LIFE SCIENCES
Volume 79, Issue 3, Pages -Publisher
SPRINGER BASEL AG
DOI: 10.1007/s00018-021-04077-1
Keywords
Transgenic mouse; Brain; Lineage tracing; Morphogenesis; Fluorescent reporters; Multichannel imaging
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Funding
- INSERM
- ATIP-Avenir program
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Understanding complexity in living organisms requires the use of lineage tracing tools at a multicellular scale. This review discusses different multicolor strategies, focusing on mouse models expressing fluorescent reporter proteins. It highlights the applications of multicolor mouse models in organogenesis and tissue morphogenesis, as well as the contribution of multicolor fate mapping strategies in understanding cellular choreography. Furthermore, it presents the latest technological advances in multichannel imaging and automated analyses.
Understanding the generation of complexity in living organisms requires the use of lineage tracing tools at a multicellular scale. In this review, we describe the different multicolor strategies focusing on mouse models expressing several fluorescent reporter proteins, generated by classical (MADM, Brainbow and its multiple derivatives) or acute (StarTrack, CLoNe, MAGIC Markers, iOn, viral vectors) transgenesis. After detailing the multi-reporter genetic strategies that serve as a basis for the establishment of these multicolor mouse models, we briefly mention other animal and cellular models (zebrafish, chicken, drosophila, iPSC) that also rely on these constructs. Then, we highlight practical applications of multicolor mouse models to better understand organogenesis at single progenitor scale (clonal analyses) in the brain and briefly in several other tissues (intestine, skin, vascular, hematopoietic and immune systems). In addition, we detail the critical contribution of multicolor fate mapping strategies in apprehending the fine cellular choreography underlying tissue morphogenesis in several models with a particular focus on brain cytoarchitecture in health and diseases. Finally, we present the latest technological advances in multichannel and in-depth imaging, and automated analyses that enable to better exploit the large amount of data generated from multicolored tissues.
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