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- W2000948610 abstract "LIGHT (lymphotoxin-like, exhibits inducible expression, and competes with herpes simplex virus glycoprotein D for herpesvirus entry mediator (HVEM), a receptor expressed by T lymphocytes) is a ligand for HVEM. LIGHT–HVEM interactions are important in T helper type 1 (Th1) immune responses. In some cases with early stages of cutaneous T cell lymphoma (CTCL), IL-2, IFN-γ, and Th1 chemokines are expressed in lesional skin, while IL-4, IL-5, and Th2 chemokines are dominant in advanced CTCL. In this study, we investigated roles of LIGHT and HVEM in the microenvironment of CTCL. LIGHT enhanced production of Th1 chemokines, such as CXC chemokine ligand (CXCL) 9, CXCL10, and CXCL11, from IFN-γ-treated dermal fibroblasts via phosphorylation of inhibitor κBα. Messenger RNA levels of these chemokines were increased in lesional skin of early CTCL. Interestingly, while LIGHT expression in CTCL skin correlated with disease progression, HVEM expression was significantly decreased in advanced CTCL skin. HVEM was detected in dermal fibroblasts in early CTCL skin, but not in advanced CTCL skin in situ. These results suggest that low HVEM expression on dermal fibroblasts in advanced CTCL skin attenuates expression of Th1 chemokines, which may contribute to a shift to a Th2-dominant microenvironment as disease progresses. LIGHT (lymphotoxin-like, exhibits inducible expression, and competes with herpes simplex virus glycoprotein D for herpesvirus entry mediator (HVEM), a receptor expressed by T lymphocytes) is a ligand for HVEM. LIGHT–HVEM interactions are important in T helper type 1 (Th1) immune responses. In some cases with early stages of cutaneous T cell lymphoma (CTCL), IL-2, IFN-γ, and Th1 chemokines are expressed in lesional skin, while IL-4, IL-5, and Th2 chemokines are dominant in advanced CTCL. In this study, we investigated roles of LIGHT and HVEM in the microenvironment of CTCL. LIGHT enhanced production of Th1 chemokines, such as CXC chemokine ligand (CXCL) 9, CXCL10, and CXCL11, from IFN-γ-treated dermal fibroblasts via phosphorylation of inhibitor κBα. Messenger RNA levels of these chemokines were increased in lesional skin of early CTCL. Interestingly, while LIGHT expression in CTCL skin correlated with disease progression, HVEM expression was significantly decreased in advanced CTCL skin. HVEM was detected in dermal fibroblasts in early CTCL skin, but not in advanced CTCL skin in situ. These results suggest that low HVEM expression on dermal fibroblasts in advanced CTCL skin attenuates expression of Th1 chemokines, which may contribute to a shift to a Th2-dominant microenvironment as disease progresses. CC chemokine ligand CC chemokine receptor cutaneous T cell lymphoma CXC chemokine ligand CXC chemokine receptor herpesvirus entry mediator inhibitor κBα lymphotoxin-like, exhibits inducible expression, and competes with herpes simplex virus glycoprotein D for HVEM, a receptor expressed by T lymphocytes lymphotoxin β receptor mycosis fungoides natural killer phosphorylated IκBα Sézary syndrome T helper type 1" @default.
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- W2000948610 date "2012-04-01" @default.
- W2000948610 modified "2023-10-01" @default.
- W2000948610 title "Low Herpesvirus Entry Mediator (HVEM) Expression on Dermal Fibroblasts Contributes to a Th2-Dominant Microenvironment in Advanced Cutaneous T-Cell Lymphoma" @default.
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- W2000948610 doi "https://doi.org/10.1038/jid.2011.470" @default.
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