Cell-Type Specific Responses to DNA Replication Stress in Early C. elegans Embryos.
Cell-Type Specific Responses to DNA Replication Stress in Early C. elegans Embryos.
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DOI:
10.1371/journal.pone.0164601
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发表时间:
2016
期刊:
影响因子:
3.7
通讯作者:
Michael WM
中科院分区:
文献类型:
--
作者:
Stevens H;Williams AB;Michael WM
To better understand how the cellular response to DNA replication stress is regulated during embryonic development, we and others have established the early C. elegans embryo as a model system to study this important problem. As is the case in most eukaryotic cell types, the replication stress response is controlled by the ATR kinase in early worm embryos. In this report we use RNAi to systematically characterize ATR pathway components for roles in promoting cell cycle delay during a replication stress response, and we find that these genetic requirements vary, depending on the source of stress. We also examine how individual cell types within the embryo respond to replication stress, and we find that the strength of the response, as defined by duration of cell cycle delay, varies dramatically within blastomeres of the early embryo. Our studies shed light on how the replication stress response is managed in the context of embryonic development and show that this pathway is subject to developmental regulation.
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DOI:
10.1083/jcb.201312029
发表时间:
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期刊:
The Journal of cell biology
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