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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Su, Shin-Tang Wang, Kuan-Hsiung Lin, Kuo-I Hsieh, Yi-Ting Tsai, Dong-Yan Chiu, Yi-Kai Lin, I-Ying Yang, Shii-Yi |
| Description | Author Affiliation: Chiu YK ( Genomics Research Center, Academia Sinica, Taipei 115, Taiwan); Lin IY ( Genomics Research Center, Academia Sinica, Taipei 115, Taiwan); Su ST ( Genomics Research Center, Academia Sinica, Taipei 115, Taiwan); Wang KH ( Genomics Research Center, Academia Sinica, Taipei 115, Taiwan); Yang SY ( Genomics Research Center, Academia Sinica, Taipei 115, Taiwan); Tsai DY ( Genomics Research Center, Academia Sinica, Taipei 115, Taiwan); Hsieh YT ( Genomics Research Center, Academia Sinica, Taipei 115, Taiwan); Lin KI ( Genomics Research Center, Academia Sinica, Taipei 115, Taiwan) |
| Abstract | Ag-primed B cells that result from an immune response can form either memory B cells or Ab-secreting plasma cells; however, the molecular machinery that controls this cellular fate is poorly understood. In this study, we show that activated B cell factor-1 (ABF-1), which encodes a basic helix-loop-helix transcriptional repressor, participates in this regulation. ABF-1 was prevalently expressed in purified memory B cells and induced by T follicular helper cell-mediated signals. ABF-1 expression declined by the direct repression of B lymphocyte-induced maturation protein-1 during differentiation. Ectopic expression of ABF-1 reduced the formation of Ab-secreting cells in an in vitro differentiation system of human memory B cells. Accordingly, knockdown of ABF-1 potentiates the formation of Ab-secreting cells. A transgenic mouse that expresses inducible ABF-1 in a B cell-specific manner was generated to demonstrate that the formation of germinal center and memory B cells was augmented by induced ABF-1 in an immune response, whereas the Ag-specific plasma cell response was dampened. This effect was associated with the ability of ABF-1 to limit cell proliferation. Together, our results demonstrate that ABF-1 facilitates formation of memory B cells but prevents plasma cell differentiation. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| Journal | The Journal of Immunology |
| Issue Number | 5 |
| Volume Number | 193 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2014-09-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Cell Differentiation Immunology Cell Proliferation Gene Expression Regulation Immunologic Memory Plasma Cells Transcription Factors 3t3 Cells Animals Genetics Mice Mice, Transgenic Cytology Research Support, Non-u.s. Gov't Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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