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Dual Specificity Phosphatase 5 Is Essential for T Cell Survival.
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- Author(s): Kutty RG;Kutty RG;Kutty RG; Xin G; Xin G; Schauder DM; Schauder DM; Schauder DM; Cossette SM; Cossette SM; Bordas M; Bordas M; Cui W; Cui W; Cui W; Ramchandran R; Ramchandran R
- Source:
PloS one [PLoS One] 2016 Dec 09; Vol. 11 (12), pp. e0167246. Date of Electronic Publication: 2016 Dec 09 (Print Publication: 2016).- Publication Type:
Journal Article- Language:
English - Source:
- Additional Information
- Source: Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE
- Publication Information: Original Publication: San Francisco, CA : Public Library of Science
- Subject Terms: Apoptosis/*genetics ; Cell Proliferation/*genetics ; Dual-Specificity Phosphatases/*genetics ; T-Lymphocytes/*metabolism; Animals ; Blotting, Western ; CD8-Positive T-Lymphocytes/enzymology ; CD8-Positive T-Lymphocytes/metabolism ; CD8-Positive T-Lymphocytes/virology ; Cell Survival/genetics ; Cells, Cultured ; Dual-Specificity Phosphatases/metabolism ; Gene Expression Regulation, Enzymologic ; Interferon-gamma/metabolism ; Lymphocytic choriomeningitis virus/physiology ; Mice, Inbred C57BL ; Mice, Knockout ; Reverse Transcriptase Polymerase Chain Reaction ; T-Lymphocytes/enzymology ; T-Lymphocytes/virology ; Tumor Necrosis Factor-alpha/metabolism
- Abstract: The mitogen-activated protein kinase (MAPK) pathway regulates many key cellular processes such as differentiation, apoptosis, and survival. The final proteins in this pathway, ERK1/2, are regulated by dual specificity phosphatase 5 (DUSP5). DUSP5 is a nuclear, inducible phosphatase with high affinity and fidelity for ERK1/2. By regulating the final step in the MAPK signaling cascade, DUSP5 exerts strong regulatory control over a central cellular pathway. Like other DUSPs, DUSP5 plays an important role in immune function. In this study, we have utilized new knockout mouse reagents to explore its function further. We demonstrate that global loss of DUSP5 does not result in any gross phenotypic changes. However, loss of DUSP5 affects memory/effector CD8+ T cell populations in response to acute viral infection. Specifically, Dusp5-/- mice have decreased proportions of short-lived effector cells (SLECs) and increased proportions of memory precursor effector cells (MPECs) in response to infection. Further, we show that this phenotype is T cell intrinsic; a bone marrow chimera model restricting loss of DUSP5 to the CD8+ T cell compartment displays a similar phenotype. Dusp5-/- T cells also display increased proliferation, increased apoptosis, and altered metabolic profiles, suggesting that DUSP5 is a pro-survival protein in T cells.
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Immunol Rev. 2012 Sep;249(1):27-42. (PMID: 22889213) - Grant Information: R01 AI125741 United States AI NIAID NIH HHS; R01 HL102745 United States HL NHLBI NIH HHS; R01 HL112639 United States HL NHLBI NIH HHS; T32 GM080202 United States GM NIGMS NIH HHS; R01 HL090712 United States HL NHLBI NIH HHS
- Accession Number: 0 (Tumor Necrosis Factor-alpha)
82115-62-6 (Interferon-gamma)
EC 3.1.3.48 (Dual-Specificity Phosphatases)
EC 3.1.3.48 (Dusp5 protein, mouse) - Publication Date: Date Created: 20161210 Date Completed: 20170726 Latest Revision: 20201215
- Publication Date: 20240105
- Accession Number: PMC5147890
- Accession Number: 10.1371/journal.pone.0167246
- Accession Number: 27936095
- Source:
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