Plasma cell ontogeny defined by quantitative changes in blimp-1 expression.
Plasma cell ontogeny defined by quantitative changes in blimp-1 expression.
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DOI:
10.1084/jem.20040973
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发表时间:
2004-10-18
期刊:
影响因子:
--
通讯作者:
Nutt SL
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文献类型:
--
作者:
Kallies A;Hasbold J;Tarlinton DM;Dietrich W;Corcoran LM;Hodgkin PD;Nutt SL
Plasma cells comprise a population of terminally differentiated B cells that are dependent on the transcriptional regulator B lymphocyte–induced maturation protein 1 (Blimp-1) for their development. We have introduced a gfp reporter into the Blimp-1 locus and shown that heterozygous mice express the green fluorescent protein in all antibody-secreting cells (ASCs) in vivo and in vitro. In vitro, these cells display considerable heterogeneity in surface phenotype, immunoglobulin secretion rate, and Blimp-1 expression levels. Importantly, analysis of in vivo ASCs induced by immunization reveals a developmental pathway in which increasing levels of Blimp-1 expression define developmental stages of plasma cell differentiation that have many phenotypic and molecular correlates. Thus, maturation from transient plasmablast to long-lived ASCs in bone marrow is predicated on quantitative increases in Blimp-1 expression.
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