IL-21 and IL-21 receptor expression in lymphocytes and neurons in multiple sclerosis brain.

IL-17-producing CD4(+) T cells (Th-17) contribute to the pathogenesis of experimental autoimmune encephalomyelitis and are associated with active disease in multiple sclerosis (MS). In addition to IL-17, Th-17 cells can also express IL-21, IL-22, and IL-6 under Th-17-polarizing conditions (IL-6 and...

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Main Authors: Tzartos, J, Craner, M, Friese, M, Jakobsen, K, Newcombe, J, Esiri, M, Fugger, L
Format: Journal article
Language:English
Published: 2011
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author Tzartos, J
Craner, M
Friese, M
Jakobsen, K
Newcombe, J
Esiri, M
Fugger, L
author_facet Tzartos, J
Craner, M
Friese, M
Jakobsen, K
Newcombe, J
Esiri, M
Fugger, L
author_sort Tzartos, J
collection OXFORD
description IL-17-producing CD4(+) T cells (Th-17) contribute to the pathogenesis of experimental autoimmune encephalomyelitis and are associated with active disease in multiple sclerosis (MS). In addition to IL-17, Th-17 cells can also express IL-21, IL-22, and IL-6 under Th-17-polarizing conditions (IL-6 and transforming growth factor-β). In this study we investigated IL-21 and IL-21 receptor (IL-21R) expression in MS lesions by in situ hybridization and immunohistochemistry. We detected strongly IL-21(+) infiltrating cells predominantly in acute but also in chronic active white matter MS lesions in which IL-21 expression was restricted to CD4(+) cells. In contrast, IL-21R was much more broadly distributed on CD4(+), CD19(+), and CD8(+) lymphocytes but not major histocompatibility complex class-II(+) macrophages/microglia. Interestingly, in cortical areas we detected both IL-21 and IL-21R expression by neurons. These findings suggest role(s) for IL-21 in both the acute and chronic stages of MS via direct effects on T and B lymphocytes and, demonstrated for the first time, also on neurons.
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spelling oxford-uuid:6a07a81a-4eb9-431a-b469-f0efbb7ecd3e2022-03-26T18:54:55ZIL-21 and IL-21 receptor expression in lymphocytes and neurons in multiple sclerosis brain.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6a07a81a-4eb9-431a-b469-f0efbb7ecd3eEnglishSymplectic Elements at Oxford2011Tzartos, JCraner, MFriese, MJakobsen, KNewcombe, JEsiri, MFugger, LIL-17-producing CD4(+) T cells (Th-17) contribute to the pathogenesis of experimental autoimmune encephalomyelitis and are associated with active disease in multiple sclerosis (MS). In addition to IL-17, Th-17 cells can also express IL-21, IL-22, and IL-6 under Th-17-polarizing conditions (IL-6 and transforming growth factor-β). In this study we investigated IL-21 and IL-21 receptor (IL-21R) expression in MS lesions by in situ hybridization and immunohistochemistry. We detected strongly IL-21(+) infiltrating cells predominantly in acute but also in chronic active white matter MS lesions in which IL-21 expression was restricted to CD4(+) cells. In contrast, IL-21R was much more broadly distributed on CD4(+), CD19(+), and CD8(+) lymphocytes but not major histocompatibility complex class-II(+) macrophages/microglia. Interestingly, in cortical areas we detected both IL-21 and IL-21R expression by neurons. These findings suggest role(s) for IL-21 in both the acute and chronic stages of MS via direct effects on T and B lymphocytes and, demonstrated for the first time, also on neurons.
spellingShingle Tzartos, J
Craner, M
Friese, M
Jakobsen, K
Newcombe, J
Esiri, M
Fugger, L
IL-21 and IL-21 receptor expression in lymphocytes and neurons in multiple sclerosis brain.
title IL-21 and IL-21 receptor expression in lymphocytes and neurons in multiple sclerosis brain.
title_full IL-21 and IL-21 receptor expression in lymphocytes and neurons in multiple sclerosis brain.
title_fullStr IL-21 and IL-21 receptor expression in lymphocytes and neurons in multiple sclerosis brain.
title_full_unstemmed IL-21 and IL-21 receptor expression in lymphocytes and neurons in multiple sclerosis brain.
title_short IL-21 and IL-21 receptor expression in lymphocytes and neurons in multiple sclerosis brain.
title_sort il 21 and il 21 receptor expression in lymphocytes and neurons in multiple sclerosis brain
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