Ultradian oscillations and pulses: coordinating cellular responses and cell fate decisions.

Ultradian oscillations and pulses: coordinating cellular responses and cell fate decisions.
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DOI:
10.1242/dev.104497
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发表时间:
2014-10
期刊:
Development (Cambridge, England)
影响因子:
--
通讯作者:
Kageyama R
Kageyama R
中科院分区:
其他
文献类型:
--
作者:
Isomura A;Kageyama R

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生物钟在生物体发育、稳态和功能中起着关键作用。近年来,许多工作都集中在生物钟上,但新兴的研究强调了超昼夜振荡器的存在-周期比24小时短得多。 越来越多的证据以及最近发展的光遗传学方法表明,这种超日振荡器在细胞命运决定过程中起着重要作用,分析超日振荡与细胞命运决定之间的功能联系将有助于更深入地理解发育胚胎的设计原理。在这篇评论中,我们讨论了超日振荡动力学的机制,并介绍了各种生物背景下超日振荡器的例子。我们还讨论了如何光遗传学技术已被用来阐明超日振荡的生物学意义。
Biological clocks play key roles in organismal development, homeostasis and function. In recent years, much work has focused on circadian clocks, but emerging studies have highlighted the existence of ultradian oscillators – those with a much shorter periodicity than 24 h. Accumulating evidence, together with recently developed optogenetic approaches, suggests that such ultradian oscillators play important roles during cell fate decisions, and analyzing the functional links between ultradian oscillation and cell fate determination will contribute to a deeper understanding of the design principle of developing embryos. In this Review, we discuss the mechanisms of ultradian oscillatory dynamics and introduce examples of ultradian oscillators in various biological contexts. We also discuss how optogenetic technology has been used to elucidate the biological significance of ultradian oscillations.
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