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Invaders (Kathryn Tosney, PhD, Professor, Molecular, Cellular & Developmental Biology) These cells form the middle layer of the embryo (the mesenchyme), that will eventually give rise to bone, muscle, blood, kidney and contribute to other organs. Here, the fate of the cells is still undecided and they lie in spaces within a “jungle gym” of fibrils and complex sugar molecules. Many of these cells can move great distances in the embryo to form structures like neuronal ganglia, limb muscles, and facial bones. The study of migratory cells in the embryo can help us understand processes like metastatic cancer.
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