Nat Commun:在培养皿中模拟声带对香烟烟雾的反应

2019-09-29 Nature自然科研 Nature自然科研

《自然-通讯》本周发表的一项研究Human induced pluripotent stem cell-derived vocal fold mucosa mimics development and responses to smoke exposure报道了人声带组织(即粘膜)的一个实验室三维模型。当暴露在香烟烟雾中时,该组织会出现在人喉中发现的反应,即炎症。该模型可用于对声带疾病或损害的相关

《自然-通讯》本周发表的一项研究Human induced pluripotent stem cell-derived vocal fold mucosa mimics development and responses to smoke exposure报道了人声带组织(即粘膜)的一个实验室三维模型。当暴露在香烟烟雾中时,该组织会出现在人喉中发现的反应,即炎症。该模型可用于对声带疾病或损害的相关药物和疗法研究。



3D人声带组织(源于人诱导多能干细胞)的培养过程



组织在5%香烟烟雾提取物中暴露一周后的结构和功能基因表达变化

声带不仅是我们发音的基础,也是分隔声道和食物饮料进入消化通道的关键分界,并能防止异物进入呼吸道。声带容易受到慢性炎症的影响,主要由环境损伤导致(包括香烟、过敏原或感染)。不过,由于从健康声带中提取细胞样本会导致不可逆的损伤,对声带疾病和修复策略的研究一直存在难度。

美国威斯康星大学麦迪逊分校的Susan Thibeault和同事在他们之前小鼠研究的基础上,从人诱导多能干细胞(hiPSC)中提取了声带上皮细胞。作者表明,hiPSC源性声带组织在遗传学和形态上都与天然人声带粘膜类似。作者随后将他们的组织在5%的香烟烟雾提取物中暴露了一周的时间,观察是否会诱导出与烟雾相关的粘膜炎症。结果显示,烟雾会导致粘膜炎症以及细胞类型的异常重塑,影响上皮屏障结构。

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    2020-05-18 liye789132251
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    2020-01-02 liuli5079
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    2019-09-30 Dr Z

    学习了

    0

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    2019-09-30 yjs木玉

    好好好好好好

    0

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