Naïve B cells vs germina center B cells

ABSTRACT: Activation-induced cytidine deaminase (AID) is essential for the generation of antibody memory but also targets oncogenes among others. We investigated the transcriptional regulation of the AID gene, Aicda, in the class switch–inducible CH12F3-2 cells, and found that the Aicda regulation involves derepression by several layers of positive regulatory elements in addition to the 5’ promoter region. The 5’ upstream region contains functional motifs for the response to signaling by cytokines, CD40-ligand, or stimuli that activate NF-κB. The first intron contains functional binding elements for the ubiquitous silencers c-Myb and E2f and for B cell–specific activator Pax5 and E-box-binding proteins. To confirm involvement of these transcription factors in Acida regulation, we examined their expression profile of these factors in naïve and germinal center B cells.

ORGANISM(S): Mus musculus

PROVIDER: GSE18746 | GEO | 2009/10/27

SECONDARY ACCESSION(S): PRJNA121661

REPOSITORIES: GEO