| First Author | Tamura C | Year | 2006 |
| Journal | Autoimmunity | Volume | 39 |
| Issue | 6 | Pages | 445-53 |
| PubMed ID | 17060023 | Mgi Jnum | J:128211 |
| Mgi Id | MGI:3766511 | Doi | 10.1080/08916930600833390 |
| Citation | Tamura C, et al. (2006) Impaired function of dendritic cells in alymphoplasia (aly/aly) mice for expansion of CD25+CD4+ regulatory T cells. Autoimmunity 39(6):445-53 |
| abstractText | Alymphoplasia (aly/aly) mice are from a naturally occurring strain with a mutation in nuclear factor-kappa B inducing kinase (NIK). The NIK mutation causes disruption of the architecture of the thymus and spleen and aly/aly mice show decreased numbers of CD25+CD4+T cells in the spleen. For the expansion of CD25+CD4+T cells, interactions between dendritic cells (DCs) and CD25+CD4+ regulatory T cells are necessary. We investigated the ability of DCs to induce expansion of CD25+CD4+T cells. We found that DCs are reduced in the spleen of aly/aly mice, and showed low expressions of CD80, CD86 and MHC class II molecules on the surface. DCs from aly/aly mice showed decreased ability to present ovalbumin (OVA) to T cells from OVA specific TCR transgenic mice, and a decreased ability for alloantigen presentation. Further, DCs showed a decreased ability to induce expansion of CD25+CD4+T cells in vitro. Our results suggested that the impairment of DCs in aly/aly mice is responsible, at least in part, for the decreased numbers of CD25+CD4+T cells in the periphery of aly/aly mice. |
