| First Author | Henao-Mejia J | Year | 2013 |
| Journal | Immunity | Volume | 38 |
| Issue | 5 | Pages | 984-97 |
| PubMed ID | 23623381 | Mgi Jnum | J:203157 |
| Mgi Id | MGI:5525048 | Doi | 10.1016/j.immuni.2013.02.021 |
| Citation | Henao-Mejia J, et al. (2013) The microRNA miR-181 is a critical cellular metabolic rheostat essential for NKT cell ontogenesis and lymphocyte development and homeostasis. Immunity 38(5):984-97 |
| abstractText | Regulation of metabolic pathways in the immune system provides a mechanism to actively control cellular function, growth, proliferation, and survival. Here, we report that miR-181 is a nonredundant determinant of cellular metabolism and is essential for supporting the biosynthetic demands of early NKT cell development. As a result, miR-181-deficient mice showed a complete absence of mature NKT cells in the thymus and periphery. Mechanistically, miR-181 modulated expression of the phosphatase PTEN to control PI3K signaling, which was a primary stimulus for anabolic metabolism in immune cells. Thus miR-181-deficient mice also showed severe defects in lymphoid development and T cell homeostasis associated with impaired PI3K signaling. These results uncover miR-181 as essential for NKT cell development and establish this family of miRNAs as central regulators of PI3K signaling and global metabolic fitness during development and homeostasis. |
