The Transcription Factor T-Bet Is Regulated by MicroRNA-155 in Murine Anti-Viral CD8+ T Cells via SHIP-1
Year: 2017
Type: article
Abstract: We report here that the expression of the transcription factor T-bet, which is known to be required for effector cytotoxic CD8+ T lymphocytes (CTL) generation and effector memory cell formation, is regulated in CTL by miR-155. Importantly, we show that the proliferative effect of miR-155 on CD8+ T cells is mediated by T-bet. T-bet levels in CTL were controlled in vivo by miR-155 via SHIP-1, a known direct target of miR-155, and SHIP-1 directly downregulated T-bet. Our studies reveal an important and unexpected signaling axis between miR-155, T-bet, and SHIP-1 in in vivo CTL responses and suggest an important signaling module that regulates effector CTL immunity.
Source: Frontiers in Immunology
Authors: Jennifer L. Hope, Christopher J. Stairiker, Panagiota I. Spantidea, Donald T. Gracias, Alison J. Carey, Adam J. Fike, Marjan van Meurs, Inge Brouwers-Haspels, Laurine C. Rijsbergen, Joseph A. Fraietta, Yvonne M. Mueller, Rosemarieke C. Klop, Erietta Stelekati, E. John Wherry, Stefan J. Erkeland, Peter D. Katsikis
Language: English
Topic: T-cell and B-cell Immunology
Subfield: Immunology
Field: Immunology and Microbiology
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $3,801
OpenAlex ID: W2775813249