Authors: | Kim, M.; Ouyang, W.; Liao, W.; Zhang, M.; Li, M. |
Article Title: | The transcription factor foxo1 controls central-memory CD8+ T cell responses to infection |
Abstract: | Memory Tcells protect hosts from pathogen reinfection, but how these cells emerge from a pool of antigen-experienced Tcells is unclear. Here, we show that mice lacking the transcription factor Foxo1 in activated CD8+ Tcells have defective secondary, but not primary, responses to Listeria monocytogenes infection. Compared to short-lived effector Tcells, memory-precursor Tcells expressed higher amounts of Foxo1, which promoted their generation and maintenance. Chromatin immunoprecipitation sequencing revealed the transcription factor Tcf7 and the chemokine receptor Ccr7 as Foxo1-bound target genes, which have critical functions in central-memory Tcell differentiation and trafficking. These findings demonstrate that Foxo1 is selectively incorporated into the genetic program that regulates memory CD8+ Tcell responses to infection. © 2013 Elsevier Inc. |
Keywords: | controlled study; protein expression; unclassified drug; promoter region; nonhuman; comparative study; cd8+ t lymphocyte; cd8-positive t-lymphocytes; forkhead transcription factors; mouse; phenotype; animals; mice; allele; bone marrow cells; gene expression profiling; cell maturation; animal experiment; animal model; transcription factor; cell differentiation; mice, inbred c57bl; mice, transgenic; granzyme b; lymphocyte activation; cellular immunity; chromatin immunoprecipitation; cell migration; adoptive transfer; green fluorescent proteins; dna microarray; homeostasis; chemokine receptor ccr7; immunologic memory; listeriosis; listeria monocytogenes; t cell transcription factor 1; transcription factor fkhr; memory t lymphocyte; bacterial load; receptors, ccr7; transcription factor tcf7 |
Journal Title: | Immunity |
Volume: | 39 |
Issue: | 2 |
ISSN: | 1074-7613 |
Publisher: | Cell Press |
Date Published: | 2013-08-22 |
Start Page: | 286 |
End Page: | 297 |
Language: | English |
DOI: | 10.1016/j.immuni.2013.07.013 |
PROVIDER: | scopus |
PUBMED: | 23932570 |
PMCID: | PMC3809840 |
DOI/URL: | |
Notes: | --- - "Export Date: 1 October 2013" - "CODEN: IUNIE" - "Source: Scopus" |