論文 - 詳細
| RRC ID | 85395 |
|---|---|
| 著者 | Nemoto Y, Morikawa R, Yonemoto Y, Tanaka S, Takei Y, Oshima S, Nagaishi T, Tsuchiya K, Nakamura T, Takenaka K, Ohtsuka K, Chen X, Okazawa H, Okamoto R, Watanabe M, von Andrian UH. |
| タイトル | Intestinal CD4-CD8αβ-TCRαβ+ T cells function as tolerogenic antigen presenting cells in mice. |
| ジャーナル | Nat Commun |
| Abstract |
The intestinal mucosa harbors diverse lymphocyte populations, including double negative CD4-CD8αβ-TCRαβ+ T (DNT) cells, in the intraepithelial compartment and the lamina propria. Here we report that DNT cells in mouse small intestines are motile and reach across the epithelial barrier to capture luminal antigens (Ags). DNT cells then migrate to mesenteric lymph nodes (MLN) and upregulate MHC-II, as evidenced by a sizeable fraction of mouse DNT cells in Peyer's patches (PP) and MLN expressing MHC-II but little or no co-stimulatory molecules. Functionally, the presentation of intestinal antigens by DNT cells tolerizes antigen-specific naive CD4+ T cells, with this tolerization reversed by conditional ablation of MHC-II in T cells, thereby rendering mutant mice hypersusceptible to intestinal inflammation. Intriguingly, intestinal T cells in patients with Crohn's disease also express lower levels of HLA-DR than those in healthy controls. Our findings thus potentially implicate MHC-II+ DNT cells in intestinal immune homeostasis and pathogenesis of inflammatory bowel disease. |
| 巻・号 | 16(1) |
| ページ | 7072 |
| 公開日 | 2025-8-1 |
| DOI | 10.1038/s41467-025-62089-y |
| PII | 10.1038/s41467-025-62089-y |
| PMID | 40750764 |
| PMC | PMC12316896 |
| MeSH | Animals Antigen Presentation Antigen-Presenting Cells* / immunology CD4-Positive T-Lymphocytes* / immunology CD8 Antigens / immunology CD8 Antigens / metabolism Cell Movement Crohn Disease / immunology Female HLA-DR Antigens / immunology HLA-DR Antigens / metabolism Histocompatibility Antigens Class II / genetics Histocompatibility Antigens Class II / immunology Histocompatibility Antigens Class II / metabolism Humans Immune Tolerance* Intestinal Mucosa* / immunology Intestine, Small / immunology Lymph Nodes / immunology Male Mice Mice, Inbred C57BL Peyer's Patches / immunology Receptors, Antigen, T-Cell, alpha-beta* / immunology Receptors, Antigen, T-Cell, alpha-beta* / metabolism |
| IF | 12.121 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
|
| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 35 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 6.5 |
| リソース情報 | |
| 実験動物マウス | RBRC05737 |