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Abboud G, Stanfield J, Tahiliani V, Desai P, Hutchinson TE, Lorentsen KJ, Cho JJ, Avram D, Salek-Ardakani S. Transcription Factor Bcl11b Controls Effector and Memory CD8 T cell Fate Decision and Function during Poxvirus Infection. Front Immunol 2016; 7:425. [PMID: 27790219 PMCID: PMC5061747 DOI: 10.3389/fimmu.2016.00425] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 09/28/2016] [Indexed: 01/20/2023] Open
Abstract
CD8+ T cells play an important role in host resistance to many viral infections, but the underlying transcriptional mechanisms governing their differentiation and functionality remain poorly defined. By using a highly virulent systemic and respiratory poxvirus infection in mice, we show that the transcription factor Bcl11b provides a dual trigger that sustains the clonal expansion of virus-specific effector CD8+ T cells, while simultaneously suppressing the expression of surface markers associated with short-lived effector cell (SLEC) differentiation. Additionally, we demonstrate that Bcl11b supports the acquisition of memory precursor effector cell (MPEC) phenotype and, thus, its absence causes near complete loss of lymphoid and lung-resident memory cells. Interestingly, despite having normal levels of T-bet and Eomesodermin, Bcl11b-deficient CD8+ T cells failed to execute effector differentiation needed for anti-viral cytokine production and degranulation, suggesting a non-redundant role of Bcl11b in regulation of this program. Thus, Bcl11b is a critical player in fate decision of SLECs and MPECs, as well as effector function and memory formation.
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Affiliation(s)
- Georges Abboud
- Department of Pathology, Immunology and Laboratory Medicine, College of Medicine, University of Florida , Gainesville, FA , USA
| | - Jessica Stanfield
- Department of Pathology, Immunology and Laboratory Medicine, College of Medicine, University of Florida , Gainesville, FA , USA
| | - Vikas Tahiliani
- Department of Pathology, Immunology and Laboratory Medicine, College of Medicine, University of Florida , Gainesville, FA , USA
| | - Pritesh Desai
- Department of Pathology, Immunology and Laboratory Medicine, College of Medicine, University of Florida , Gainesville, FA , USA
| | - Tarun E Hutchinson
- Department of Pathology, Immunology and Laboratory Medicine, College of Medicine, University of Florida , Gainesville, FA , USA
| | - Kyle J Lorentsen
- Department of Medicine, Division of Pulmonary Medicine, College of Medicine, University of Florida , Gainesville, FA , USA
| | - Jonathan J Cho
- Department of Medicine, Division of Pulmonary Medicine, College of Medicine, University of Florida , Gainesville, FA , USA
| | - Dorina Avram
- Department of Medicine, Division of Pulmonary Medicine, College of Medicine, University of Florida , Gainesville, FA , USA
| | - Shahram Salek-Ardakani
- Department of Pathology, Immunology and Laboratory Medicine, College of Medicine, University of Florida , Gainesville, FA , USA
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Cowan J, Bhandoola A. Progress on thymic function from Maui. Nat Immunol 2016; 17:1129-32. [PMID: 27648536 DOI: 10.1038/ni.3555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Maui, Hawaii, was the home for the latest Global Thymus Network meeting 5-9 June 2016. Participants gathered together to discuss how one little organ can have such huge effects.
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Affiliation(s)
- Jennifer Cowan
- T Cell Biology and Development Section, Laboratory of Genome Integrity, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Avinash Bhandoola
- T Cell Biology and Development Section, Laboratory of Genome Integrity, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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103
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Induction of Bcl11b during T cell commitment through a tripartite mechanism. Nat Immunol 2016; 17:903-4. [PMID: 27434004 DOI: 10.1038/ni.3520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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