| First Author | Lee A | Year | 2015 |
| Journal | PLoS Pathog | Volume | 11 |
| Issue | 10 | Pages | e1005193 |
| PubMed ID | 26452143 | Mgi Jnum | J:246038 |
| Mgi Id | MGI:5914147 | Doi | 10.1371/journal.ppat.1005193 |
| Citation | Lee A, et al. (2015) IL-4 Induced Innate CD8+ T Cells Control Persistent Viral Infection. PLoS Pathog 11(10):e1005193 |
| abstractText | Memory-like CD8+ T cells expressing eomesodermin are a subset of innate T cells initially identified in a number of genetically modified mice, and also exist in wild mice and human. The acquisition of memory phenotype and function by these T cells is dependent on IL-4 produced by PLZF+ innate T cells; however, their physiologic function is still not known. Here we found that these IL-4-induced innate CD8+ T cells are critical for accelerating the control of chronic virus infection. In CIITA-transgenic mice, which have a substantial population of IL-4-induced innate CD8+ T cells, this population facilitated rapid control of viremia and induction of functional anti-viral T-cell responses during infection with chronic form of lymphocytic choriomeningitis virus. Characteristically, anti-viral innate CD8+ T cells accumulated sufficiently during early phase of infection. They produced a robust amount of IFN-gamma and TNF-alpha with enhanced expression of a degranulation marker. Furthermore, this finding was confirmed in wild-type mice. Taken together, the results from our study show that innate CD8+ T cells works as an early defense mechanism against chronic viral infection. |
