Transcriptional repression in stochastic gene expression, patterning, and cell fate specification.
Transcriptional repression in stochastic gene expression, patterning, and cell fate specification.
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DOI:
10.1016/j.ydbio.2021.10.002
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发表时间:
2022-01
影响因子:
2.7
通讯作者:
Johnston RJ Jr
中科院分区:
文献类型:
--
作者:
Voortman L;Johnston RJ Jr
Development is often driven by signaling and lineage-specific cues, yielding highly uniform and reproducible outcomes. Development also involves mechanisms that generate noise in gene expression and random patterns across tissues. Cells sometimes randomly choose between two or more cell fates in a mechanism called stochastic cell fate specification. This process diversifies cell types in otherwise homogenous tissues. Stochastic mechanisms have been extensively studied in prokaryotes where noisy gene activation plays a pivotal role in controlling cell fates. In eukaryotes, transcriptional repression stochastically limits gene expression to generate random patterns and specify cell fates. Here, we review our current understanding of repressive mechanisms that produce random patterns of gene expression and cell fates in flies, plants, mice, and humans.
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