First Author | Kotzin JJ | Year | 2019 |
Journal | Proc Natl Acad Sci U S A | Volume | 116 |
Issue | 24 | Pages | 11916-11925 |
PubMed ID | 31138702 | Mgi Jnum | J:276569 |
Mgi Id | MGI:6314632 | Doi | 10.1073/pnas.1819457116 |
Citation | Kotzin JJ, et al. (2019) The long noncoding RNA Morrbid regulates CD8 T cells in response to viral infection. Proc Natl Acad Sci U S A 116(24):11916-11925 |
abstractText | The transcriptional programs that regulate CD8 T-cell differentiation and function in the context of viral infections or tumor immune surveillance have been extensively studied; yet how long noncoding RNAs (lncRNAs) and the loci that transcribe them contribute to the regulation of CD8 T cells during viral infections remains largely unexplored. Here, we report that transcription of the lncRNA Morrbid is specifically induced by T-cell receptor (TCR) and type I IFN stimulation during the early stages of acute and chronic lymphocytic choriomeningitis virus (LCMV) infection. In response to type I IFN, the Morrbid RNA and its locus control CD8 T cell expansion, survival, and effector function by regulating the expression of the proapoptotic factor, Bcl2l11, and by modulating the strength of the PI3K-AKT signaling pathway. Thus, our results demonstrate that inflammatory cue-responsive lncRNA loci represent fundamental mechanisms by which CD8 T cells are regulated in response to pathogens and potentially cancer. |