Do Long-Lived Plasma Cells Maintain a Healthy Microbiota in the Gut?

Do Long-Lived Plasma Cells Maintain a Healthy Microbiota in the Gut?
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长寿的浆细胞能否维持肠道内健康的微生物群?

DOI:
10.1016/j.it.2017.10.006
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发表时间:
2017
影响因子:
16.8
通讯作者:
O. J. Landsverk
O. J. Landsverk
中科院分区:
医学1区
文献类型:
--
作者:
F. Jahnsen;E. Bækkevold;J. Hov;O. J. Landsverk

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肠道微生物群的破坏与多种疾病有关。因此,了解调节维持健康微生物群的潜在机制可能具有治疗意义。分泌型IgA通过直接结合肠腔中的细菌在免疫-微生物群串扰中发挥独特作用。微生物特异性IgA反应在婴儿期与肠道微生物群的聚集共同发展,并且在健康宿主中出生后2年与成人的反应相似。我们在这里提出,在婴儿期产生的微生物群特异性IgA产生的肠道浆细胞可以存活数十年,并有助于稳定的微生物群。我们还认为,在肠道中诱导持久IgA反应的微生物群成员是治疗干预的假定目标。
Disruptions to the gut microbiota have been associated with a variety of diseases. Understanding the underlying mechanisms that regulate the maintenance of a healthy microbiota may therefore have therapeutic implications. Secretory IgA play a unique role in immune–microbiota crosstalk by directly binding to bacteria in the gut lumen. Microbe-specific IgA responses co-develop with the assembly of the gut microbiota during infancy, and resemble those of adults by 2 years postnatally in the healthy host. We propose here that microbiota-specific IgA-producing gut plasma cells generated during infancy live for many decades and contribute to a stable microbiota community. We furthermore suggest that members of the microbiota that induce long-lasting IgA responses in the gut are putative targets for therapeutic interventions.
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