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Clin Exp Allergy:肿瘤坏死因子α和白介素-5能够抑制嗅觉再生

2019-04-29 AlexYang MedSci原创

嗅觉障碍在过敏性鼻炎患者中是一种常见的情况。这种情况被认为是由于炎症引起的嗅觉粘膜结构性和功能性的变化产生的。然而,目前对过敏性鼻炎嗅觉功能障碍的病理学理解仍旧不清楚。最近,有研究人员在过敏性鼻炎中调查了嗅觉神经细胞损伤的原因。研究发现,嗅球细胞(OSCs)表达了神经干细胞的标记。为了调查神经分化,研究人员通过免疫细胞组化染色发现Tuji1、GFAP、O4和OSCs量均显著增加。在对照和过敏性鼻炎

嗅觉障碍在过敏性鼻炎患者中是一种常见的情况。这种情况被认为是由于炎症引起的嗅觉粘膜结构性和功能性的变化产生的。然而,目前对过敏性鼻炎嗅觉功能障碍的病理学理解仍旧不清楚。最近,有研究人员在过敏性鼻炎中调查了嗅觉神经细胞损伤的原因。

研究发现,嗅球细胞(OSCs)表达了神经干细胞的标记。为了调查神经分化,研究人员通过免疫细胞组化染色发现Tuji1、GFAP、O4和OSCs量均显著增加。在对照和过敏性鼻炎模型OSCs特性比较中,研究人员检测到过敏性鼻炎模型中显著更少的神经球,减少的克隆量和嗅觉神经干细胞标记物表达的减少。当OSCs通过一些主要的过敏细胞因子处理时,只有TNF-α表现出了对OSCs明显的抑制作用。有趣的是,IL-5与TNF-α组合能够对对OSCs的生存产生明显的抑制作用,而IL-5单独使用时并不表现出上述作用。更多的是,TNF-α与IL-5组合比两者单独使用时能够更加显著的增加凋亡因子的表达。另外,过敏性鼻炎小鼠模型表现出了凋亡表达的增加。

最后,研究人员指出,过敏性鼻炎模型表现出了更低的OSCs表达水平,并且TNF-α与IL-5组合对OSCs有凋亡作用。因此,这些细胞因子也许可以作为过敏性鼻炎患者嗅觉功能障碍的治疗靶标。

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    2019-05-17 营养医师

    好文章。好杂志,我也发过

    0

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    2019-05-01 膀胱癌
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    2019-05-01 millore
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    2019-04-29 AlexYang

    很好!

    0

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