孕产妇的海尔明斯感染导致男性后代的B细胞发育不正常
Lisa C Gibbs1, Juan M Oviedo1, Bartholomew N Ondigo2
1Department of Pathology, University of Utah, Salt Lake City, UT.
Journal of immunology (Baltimore, Md. : 1950)
|August 26, 2024
概括
母亲的虫感染会损害后代的免疫力,特别是在男性身上. 这项研究揭示了B细胞发育和接种疫苗后抗体反应的性别特异性缺陷,这是由于母亲感染.
科学领域:
- 免疫学 免疫学 免疫学
- 发育生物学 发展生物学
- 传染性疾病 传染性疾病
背景情况:
- 孕期感染会改变后代的免疫力,增加疾病的易感性.
- 母亲虫感染与降低抗体标位和儿童疫苗有效性有关.
- 产妇感染诱导后代幽默免疫的抑制背后的机制尚未完全理解.
研究的目的:
- 研究母体虫感染对后代B细胞发育和免疫反应的性别特异性影响.
- 阐明母亲感染影响B细胞发育和幽默免疫的机制.
主要方法:
- 利用一种母性杆菌病的小鼠模型.
- 评估后代对风免疫接种的免疫反应.
- 分析了骨髓和生殖中心反应中的B细胞发育.
- 进行了收养转移实验,以评估细胞内在缺陷.
主要成果:
- 母亲的虫感染减少了所有后代的生殖中心反应.
- 男子后代在记忆B细胞和长寿血细胞生成中表现出性别特异性缺陷.
- 这些缺陷起源于骨髓B细胞发育过程中,涉及IL-7利基的改变.
- 男性的缺陷是细胞内在的,在收养转移后仍然存在.
结论:
- 孕产妇感染可以诱导骨髓微环境和B淋巴细胞发育中的性别特异性变化.
- 这项研究以性别特定的方式将早期B细胞发育中的母体感染诱导的缺陷与疫苗接种后抗体反应受损联系起来.
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