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Düber, S; Hafner, M; Krey, M; Lienenklaus, S; Roy, B; Hobeika, E; Reth, M; Buch, T; Waisman, A; Kretschmer, K; Weiss, S (2009). Induction of B-cell development in adult mice reveals the ability of bone marrow to produce B-1a cells. Blood, 114(24):4960-4967.

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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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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Experimental Immunology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Deposited On:11 Feb 2010 19:20
Last Modified:05 Apr 2016 13:53
Publisher:American Society of Hematology
Publisher DOI:10.1182/blood-2009-04-218156
PubMed ID:19812384

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