| First Author | Dai J | Year | 2007 |
| Journal | Eur J Immunol | Volume | 37 |
| Issue | 3 | Pages | 706-15 |
| PubMed ID | 17294405 | Mgi Jnum | J:118678 |
| Mgi Id | MGI:3700098 | Doi | 10.1002/eji.200636643 |
| Citation | Dai J, et al. (2007) Essential roles of IL-12 and dendritic cells but not IL-23 and macrophages in lupus-like diseases initiated by cell surface HSP gp96. Eur J Immunol 37(3):706-15 |
| abstractText | Proinflammatory cytokine IL-23 but not IL-12 is critical for the pathogenesis of organ-specific autoimmune diseases including experimental autoimmune encephalitis and collagen-induced arthritis. The contribution by IL-23 in systemic autoimmune diseases such as lupus is undefined. We addressed this question in a murine lupus-like disease model, initiated by enforced cell-surface expression of an ER HSP gp96 in C57BL/6 background. We found a significant increase of p40 in the sera in these mice that preceded the onset of diseases. However, autoimmunity was abrogated in transgenic mice expressing membrane-bound gp96 reconstituted with p35(-/-) BM, but not with p19(-/-) BM. Moreover, we found that dendritic cells (DC) but not macrophages were the main producers of p40. To dissect the roles of DC further, we depleted DC using a diphtheria toxin-based inducible DC depletion system. We demonstrated that the integrity of DC was essential for autoimmunity. Our results thus revealed that IL-12 and DC are critical for the pathogenesis of lupus-like disease precipitated by cell surface gp96. This study further highlighted the significant biological differences between IL-12 and IL-23. |
