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克劳丁-10下下腺减少有助于 Xerostomia 的发生

L He¹, S Z Yuan¹, X D Mao¹

¹Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Beijing, P. R. China.

Journal of dental research

|December 7, 2023

概括

克劳丁-10对唾液分泌至关重要,其在唾液腺中聚集,调节液体和离子运输. 克劳丁-10的下调导致低盐分,为口腔干燥提供潜在的治疗点.

科学领域:

分子生物学分子生物学
细胞生物学细胞生物学
身体生理学身体生理学

背景情况:

包括克劳丁在内的紧结蛋白质对于唾液腺上皮质的细胞运输至关重要.
克劳丁-10基因的突变与HELIX综合征中的口腔干燥有关,但其在唾液分泌中的特定作用尚不清楚.

研究的目的:

在生理和疾病条件下,研究Claudin-10在唾液腺分泌中的表达模式和功能作用.
探索向克劳丁-10的治疗潜力.

主要方法:

在人类和小鼠下下腺 (SMG) 中分析了claudin-10b转录和蛋白质表达.
利用SMG-C6细胞来评估克劳丁-10过度表达对体电阻和细胞通透性的影响.
在皮洛卡平刺激后的小鼠和Sjögren综合征的非肥胖糖尿病 (NOD) 小鼠模型中研究了Claudin-10组合和唾液分泌.
研究了干扰素- (IFN-γ) 对培养的SMG组织和SMG-C6细胞中的Claudin-10表达的影响,包括JAK/STAT1通路的参与.

主要成果:

克劳丁-10b转录和蛋白质以SMG表达,局部存在于虫的状膜中.
克劳丁-10的过度表达减少了SMG-C6细胞的电阻,并增加了SMG-C6细胞的细胞透性.
皮洛卡尔刺激增加了唾液分泌和阴离子度,与SMG中的Claudin-10组合相关.
NOD小鼠表现出较低的克劳丁-10蛋白水平,模仿低度,IFN-γ通过JAK/STAT1通路降低了克劳丁-10表达.

结论:

克劳丁-10作为唾液腺状上皮质中形成毛孔的蛋白质,对唾液分泌至关重要.
克劳丁-10组合对于调节细胞外运输和唾液产生至关重要.
克劳丁-10的下调有助于低盐度,这表明它是潜在的治疗标.

关键词:

斯约格伦综合征是什么意思干扰素-γ-γ 的作用.马斯卡林酸乙胆受体的受体类似细胞的通透性.唾液的分泌物唾液的分泌物紧密的交叉路口紧密的连接

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