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. 2003 May;18(5):675-85.
doi: 10.1016/s1074-7613(03)00111-0.

Notch2 is preferentially expressed in mature B cells and indispensable for marginal zone B lineage development

Toshiki Saito  1 , Shigeru Chiba, Motoshi Ichikawa, Atsushi Kunisato, Takashi Asai, Kiyoshi Shimizu, Tomoyuki Yamaguchi, Go Yamamoto, Sachiko Seo, Keiki Kumano, Etsuko Nakagami-Yamaguchi, Yoshio Hamada, Shinichi Aizawa, Hisamaru Hirai
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Free article

Notch2 is preferentially expressed in mature B cells and indispensable for marginal zone B lineage development

Toshiki Saito et al. Immunity. 2003 May.
Free article

Abstract

The Notch genes play a key role in cellular differentiation. The significance of Notch1 during thymocyte development is well characterized, but the function of Notch2 is poorly understood. Here we demonstrate that Notch2 but no other Notch family member is preferentially expressed in mature B cells and that conditionally targeted deletion of Notch2 results in the defect of marginal zone B (MZB) cells and their presumed precursors, CD1d(hi) fraction of type 2 transitional B cells. Among Notch target genes, the expression level of Deltex1 is prominent in MZB cells and strictly dependent on that of Notch2, suggesting that Deltex1 may play a role in MZB cell differentiation.

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