Nature:科学家揭示糖蛋白怎样保护呼吸道

2014-01-24 中国科学报 田天

肺黏膜表面是防御由空气传播的病原体的第一道防线,但黏液过度生成本身也能造成呼吸病。这项研究发现,被称为Muc5b的呼吸道黏液的一个特定糖蛋白成分是小鼠的黏液纤毛清除所必需的。 令人吃惊的是,对有过敏性哮喘的小鼠和人类来说,Muc5b还通过对巨噬细胞功能的调控贡献于针对细菌感染的先天性防御。Muc5b的缺失造成物质在呼吸道中积累,最终导致由多种细菌引起的慢性感染。 这项研究对于呼吸道疾病的治疗可

肺黏膜表面是防御由空气传播的病原体的第一道防线,但黏液过度生成本身也能造成呼吸病。这项研究发现,被称为Muc5b的呼吸道黏液的一个特定糖蛋白成分是小鼠的黏液纤毛清除所必需的。

令人吃惊的是,对有过敏性哮喘的小鼠和人类来说,Muc5b还通过对巨噬细胞功能的调控贡献于针对细菌感染的先天性防御。Muc5b的缺失造成物质在呼吸道中积累,最终导致由多种细菌引起的慢性感染。

这项研究对于呼吸道疾病的治疗可能会有意义。

原文出处

Roy MG, Livraghi-Butrico A, Fletcher AA, McElwee MM, Evans SE, Boerner RM, Alexander SN, Bellinghausen LK, Song AS, Petrova YM, Tuvim MJ, Adachi R, Romo I, Bordt AS, Bowden MG, Sisson JH, Woodruff PG, Thornton DJ, Rousseau K, De la Garza M, Moghaddam SJ, Karmouty-Quintana H, Blackburn MR, Drouin SM, Davis CW, Terrell KA, Grubb BR, O'Neal WK, Flores SC, Cota-Gomez A, Lozupone CA, Donnelly JM, Watson AM, Hennessy CE, Keith RC, Yang IV, Barthel L, Henson PM, Janssen WJ, Schwartz DA, Boucher RC, Dickey BF, Evans CM.Muc5b is required for airway defence.Nature. 2014 Jan 16

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    2014-07-16 liye789132251
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    2014-01-26 zhmscau
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