Efficient reconstruction of cell lineage trees for cell ancestry and cancer.

Efficient reconstruction of cell lineage trees for cell ancestry and cancer.
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DOI:
10.1093/nar/gkad254
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发表时间:
2023-06-09
影响因子:
14.9
通讯作者:
--
中科院分区:
生物学2区
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--
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Mosaic mutations can be used to track cell ancestries and reconstruct high-resolution lineage trees during cancer progression and during development, starting from the first cell divisions of the zygote. However, this approach requires sampling and analyzing the genomes of multiple cells, which can be redundant in lineage representation, limiting the scalability of the approach. We describe a strategy for cost- and time-efficient lineage reconstruction using clonal induced pluripotent stem cell lines from human skin fibroblasts. The approach leverages shallow sequencing coverage to assess the clonality of the lines, clusters redundant lines and sums their coverage to accurately discover mutations in the corresponding lineages. Only a fraction of lines needs to be sequenced to high coverage. We demonstrate the effectiveness of this approach for reconstructing lineage trees during development and in hematologic malignancies. We discuss and propose an optimal experimental design for reconstructing lineage trees. Efficient reconstruction of cell lineage trees for cell ancestry and cancer.
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