HESC-derived sensory neurons reveal an unexpected role for PIEZO2 in nociceptor mechanotransduction

HESC-derived sensory neurons reveal an unexpected role for PIEZO2 in nociceptor mechanotransduction
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HESC 衍生的感觉神经元揭示了 PIEZO2 在伤害感受器机械转导中的意外作用

DOI:
10.1101/741660
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发表时间:
--
期刊:
bioRxiv
影响因子:
--
通讯作者:
Jan Siemens
Jan Siemens
中科院分区:
--
文献类型:
--
作者:
Katrin Schrenk-Siemens;Jörg Pohle;Charlotte Rostock;Muad Abd El Hay;Ruby M. Lam;Marcin Szczot;Shiying Lu;Alexander T. Chesler;Jan Siemens

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躯体感觉,即外部和内部刺激的检测和转导,几个世纪以来一直吸引着科学家。但是,一些机制如何不同的刺激被检测和转导还没有完全理解。在过去的十年中,主要的进展增加了我们对机械传导或感觉神经元分类等领域的理解。此外,人类多能干细胞的可获得性以及产生和研究人类感觉神经元的可能性丰富了体感研究领域。基于我们以前的工作,功能性人类机械感受器的产生,我们在这里描述hESC衍生的伤害感受器样细胞的产生。我们表明,通过不同的分化策略,我们可以产生不同的伤害性亚群。其中一个方案特别允许产生感觉神经元群体,均匀表达TRPV1,一种伤害感受器的原型标志物。因此,我们发现细胞均匀地响应辣椒素,变得敏感的炎症刺激,并响应温度stimulation.Surprisingly,所有产生的亚型显示机械伤害性的特点,相当意外,损失mechanotransduction在PIEZO 2的情况下。
Somatosensation, the detection and transduction of external and internal stimuli, has fascinated scientists for centuries. But still, some of the mechanisms how distinct stimuli are detected and transduced are not entirely understood. Over the past decade major progress has increased our understanding in areas such as mechanotransduction or sensory neuron classification. Additionally, the accessibility to human pluripotent stem cells and the possibility to generate and study human sensory neurons has enriched the somatosensory research field.Based on our previous work, the generation of functional human mechanoreceptors, we describe here the generation of hESC-derived nociceptor-like cells. We show that by varying the differentiation strategy, we can produce different nociceptive subpopulations. One protocol in particular allowed the generation of a sensory neuron population, homogeneously expressing TRPV1, a prototypical marker for nociceptors. Accordingly, we find the cells to homogenously respond to capsaicin, to become sensitized upon inflammatory stimuli, and to respond to temperature stimulation.Surprisingly, all of the generated subtypes show mechano-nociceptive characteristics and, quite unexpectedly, loss of mechanotransduction in the absence of PIEZO2.
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