Short-lived and long-lived bone marrow plasma cells are derived from a novel precursor population.

Short-lived and long-lived bone marrow plasma cells are derived from a novel precursor population.
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DOI:
10.1084/jem.20011626
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发表时间:
2002-03-18
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Noelle RJ
Noelle RJ
中科院分区:
其他
文献类型:
--
作者:
O'Connor BP;Cascalho M;Noelle RJ

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最近的许多研究都强调了长寿命骨髓 (BM) 浆细胞 (PC) 对持久体液免疫的贡献。然而,对于在免疫个体的骨髓中产生长寿命 PC 的直接前体却知之甚少。我们已经鉴定出免疫 BM 中经历过抗原的 B 细胞亚群,它们是 PC 的前体。这些 PC 前体在免疫后 14 天出现在 BM 中,并持续超过 9 个月。 PC前体表型不同的子集产生短寿命或长寿命的PC。 PC 前体向 PC 的分化发生在没有抗原的情况下,并且需要细胞分裂。讨论了这些新鉴定的 PC 前体在体液免疫反应的持久性和质量方面的功能意义。
The contribution that long-lived bone marrow (BM) plasma cells (PCs) provide to enduring humoral immunity has been underscored by a number of recent studies. However, little is known about the immediate precursors that give rise to long-lived PCs in the BM of immune individuals. We have identified subsets of antigen-experienced B cells within the immune BM that are precursors to PCs. These PC precursors arise in the BM 14 days after immunization and persist for greater than 9 months. Phenotypically distinct subsets of PC precursors give rise to short-lived or long-lived PCs. The differentiation of PC precursors to PCs occurs in the absence of antigen and requires cell division. The functional significance of these newly identified PC precursors in the persistence and quality of the humoral immune response is discussed.
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