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Early Growth Response-1 Plays a Non-redundant Role in the Differentiation of B Cells into Plasma Cells
Immune Network ; : 161-166, 2015.
Article Dans Anglais | WPRIM | ID: wpr-148260
ABSTRACT
Early growth response (Egr)-1 is a Cys2-His2-type zincfinger transcription factor. It has been shown to induce survival and proliferation of immature and mature B cells, respectively, but its role in the differentiation of B cells into plasma cells remains unclear. To examine the effects of Egr-1 deficiency on the activation of B cells, naive B cells from Egr1-/- mice and their wild-type (WT) littermates were activated to proliferate and differentiate, and then assayed by FACS. Proportions of cells undergoing proliferation and apoptosis did not differ between Egr1-/- and WT mice. However, Egr1-/- B cells gave rise to fewer plasma cells than WT B cells. Consistently, Egr1-/- mice produced significantly lower titer of antigen-specific IgG than their WT littermates upon immunization. Our results demonstrate that Egr-1 participates in the differentiation program of B cells into plasma cells, while it is dispensable for the proliferation and survival of mature B cells.
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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Plasmocytes / Facteurs de transcription / Immunoglobuline G / Lymphocytes B / Immunisation / Apoptose Limites du sujet: Animaux langue: Anglais Texte intégral: Immune Network Année: 2015 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Plasmocytes / Facteurs de transcription / Immunoglobuline G / Lymphocytes B / Immunisation / Apoptose Limites du sujet: Animaux langue: Anglais Texte intégral: Immune Network Année: 2015 Type: Article