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Induction of B-cell development in adult mice reveals the ability of bone marrow to produce B-1a cells.
Blood 114, 4960-4967 (2009)
To study B-cell development from bone marrow (BM), we generated recombination-activating gene 1 (Rag1)-targeted mice lacking mature lymphocytes. B-cell development can be induced in such mice by B cell-specific restoration of a functional Rag1 transcription unit. Follicular and marginal zone B cells populated the spleen when Rag1 expression was permitted. Notably, the peritoneal cavity was dominated by bona fide B-1a cells, as judged by surface markers and functional properties. These BM-derived B-1a cells exhibited a polyclonal VDJ repertoire with substantial N nucleotide insertions. Nevertheless, physiologic frequencies of phosphatidylcholine-specific B cells were detected. Importantly, the BM of young and 5-month-old mice was indistinguishable with regard to the potential to generate B-1a cells.
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Publication type
Article: Journal article
Document type
Scientific Article
Language
english
Publication Year
2009
HGF-reported in Year
0
ISSN (print) / ISBN
0006-4971
e-ISSN
1528-0020
Journal
Blood
Quellenangaben
Volume: 114,
Issue: 24,
Pages: 4960-4967
Publisher
American Society of Hematology
Reviewing status
Peer reviewed
Institute(s)
Institute of Pancreatic Islet Research (IPI)
PubMed ID
19812384
Erfassungsdatum
2009-12-31