First Author | Bortnick A | Year | 2012 |
Journal | J Immunol | Volume | 188 |
Issue | 11 | Pages | 5389-96 |
PubMed ID | 22529295 | Mgi Jnum | J:188747 |
Mgi Id | MGI:5441687 | Doi | 10.4049/jimmunol.1102808 |
Citation | Bortnick A, et al. (2012) Long-lived bone marrow plasma cells are induced early in response to T cell-independent or T cell-dependent antigens. J Immunol 188(11):5389-96 |
abstractText | The signals required to generate long-lived plasma cells remain unresolved. One widely cited model posits that long-lived plasma cells derive from germinal centers (GCs) in response to T cell-dependent (TD) Ags. Thus, T cell-independent (TI) Ags, which fail to sustain GCs, are considered ineffective at generating long-lived plasma cells. However, we show that long-lived hapten-specific plasma cells are readily induced without formation of GCs. Long-lived plasma cells developed in T cell-deficient mice after a single immunization with haptenated LPS, a widely used TI Ag. Long-lived plasma cells also formed in response to TD Ag when the GC response was experimentally prevented. These observations establish that long-lived plasma cells are induced in both TI and TD responses, and can arise independently of B cell maturation in GCs. |