| First Author | Aiba Y | Year | 2006 |
| Journal | Immunity | Volume | 24 |
| Issue | 3 | Pages | 259-68 |
| PubMed ID | 16546095 | Mgi Jnum | J:113321 |
| Mgi Id | MGI:3665389 | Doi | 10.1016/j.immuni.2006.01.002 |
| Citation | Aiba Y, et al. (2006) BANK negatively regulates Akt activation and subsequent B cell responses. Immunity 24(3):259-68 |
| abstractText | BANK is an adaptor protein that is highly expressed in B cells. To investigate its physiological role, we generated BANK-deficient mice. BANK-deficient mice displayed enhanced germinal center formation and IgM production in response to T-dependent antigens, whereas this phenotype was blocked in CD40-BANK double knockout mice. Involvement of BANK in CD40 signaling was further demonstrated by in vitro analysis. CD40-mediated proliferation and survival were significantly increased in BANK-deficient B cells, with enhanced Akt activation, whereas introduction of dominant-negative Akt into BANK-deficient B cells suppressed the augmented CD40-mediated responses. Together, our findings suggest that BANK attenuates CD40-mediated Akt activation, thereby preventing hyperactive B cell responses. |
