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工程二次IgA的母乳输送可以保护新生儿免受轮状病毒的侵害

Stephanie N Langel¹, Claire E Otero², Justin T Steppe²

¹Department of Pathology, Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, USA.

Mucosal immunology

|January 22, 2025

概括

通过对母乳进行二元IgA (dIgA) 单克隆抗体的系统注射,可以通过母乳保护婴儿免受轮状病毒 (RV) 感染. 这种设计的dIgA策略增强了婴儿对肠道病原体的胃肠道保护.

科学领域:

免疫学免疫学免疫学
胃肠病学胃肠病学
儿科儿科儿科

背景情况:

模体IgA (dIgA) 对于粘膜免疫非常重要,特别是在婴儿中.
分泌性IgA (sIgA) 保护肠道病原体,但新生儿的保护是有限的.
通过母乳输送的治疗抗体可以增强婴儿的抗菌防御能力.

研究的目的:

开发一种用于母体转移针对轮状病毒 (RV) 的保护性抗体的小鼠模型.
评估系统注射的二极体IgA (dIgA) 单克隆抗体 (mAbs) 对婴儿保护的疗效.
为了评估dIgA与IgG相比,dIgA在预防新生儿RV诱导的腹方面的有效性.

主要方法:

对哺乳母体进行dIgA和IgG单克隆抗体 (mAbs) 的全身治疗.
测量被动抗体转移到母乳和婴儿的胃肠道.
在哺乳幼中评估对RV诱导的腹的保护.

主要成果:

系统地施用dIgA转移到母乳和婴儿胃中,取决于剂量.
经过工程设计的dIgA (mAb41) 证明了强大的RV中和.
在幼中,dIgA比IgG对RV腹的保护力更大.

结论:

系统输送工程dIgA mAbs是一种可行的策略,用于增强婴儿胃肠道免疫力.
这种方法可以促进通过母乳分泌IgA (sIgA) 的传递,从而增强对肠道病原体的保护.
工程dIgA为新生儿预防传染性腹提供了一个有希望的治疗途径.

关键词:

母乳是母乳中的一种.滴滴体IgAA 是一种模态IgA.孕产妇免疫力孕产妇免疫力新生儿免疫力新生儿免疫力被动转移是一种被动转移.罗塔病毒 (Rotavirus) 是一种病毒.

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