Current data on IL-17 and Th17 cells and implications for graft versus host disease

Human interleukin 17 was first described in 1995 as a new cytokine produced primarily by activated T CD4+ cells that stimulate the secretion of IL-6 and IL-8 by human fibroblasts, besides increasing the expression of ICAM-1. Various authors have reported that IL-17A has a role in the protection of o...

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Main Authors: Marília Normanton, Luciana Cavalheiro Marti
Format: Article
Language:English
Published: Instituto Israelita de Ensino e Pesquisa Albert Einstein
Series:Einstein (São Paulo)
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-45082013000200019&lng=en&tlng=en
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author Marília Normanton
Luciana Cavalheiro Marti
author_facet Marília Normanton
Luciana Cavalheiro Marti
author_sort Marília Normanton
collection DOAJ
description Human interleukin 17 was first described in 1995 as a new cytokine produced primarily by activated T CD4+ cells that stimulate the secretion of IL-6 and IL-8 by human fibroblasts, besides increasing the expression of ICAM-1. Various authors have reported that IL-17A has a role in the protection of organisms against extracellular bacteria and fungi due to the capacity of IL-17A to recruit neutrophils to the areas of infection, evidencing a pathological role in various models of autoimmune diseases, such as experimental autoimmune encephalitis and arthritis. The participation of IL-17A has also been described in the acute rejection of organ transplants and graft versus host disease. However, the greatest revolution in research with IL-17 happened in 2000, when it was proposed that IL-17 cannot be classified as Th1 or Th2, but rather, simply as a new lineage of IL-17-producing T-cells. These findings modified the previously established Th1/Th2 paradigm, leading to the definition of the CD3+ CD4+ Th17 cellular subtype and establishment of a new model to explain the origin of various immune events, as well as its implication in the graft versus host disease that is discussed in depth in this article.
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spelling doaj.art-92375f4ef9954e48b281383b4c943bef2022-12-21T18:59:42ZengInstituto Israelita de Ensino e Pesquisa Albert EinsteinEinstein (São Paulo)1679-45082317-638511223724610.1590/S1679-45082013000200019S1679-45082013000200019Current data on IL-17 and Th17 cells and implications for graft versus host diseaseMarília Normanton0Luciana Cavalheiro Marti1Hospital Israelita Albert EinsteinHospital Israelita Albert EinsteinHuman interleukin 17 was first described in 1995 as a new cytokine produced primarily by activated T CD4+ cells that stimulate the secretion of IL-6 and IL-8 by human fibroblasts, besides increasing the expression of ICAM-1. Various authors have reported that IL-17A has a role in the protection of organisms against extracellular bacteria and fungi due to the capacity of IL-17A to recruit neutrophils to the areas of infection, evidencing a pathological role in various models of autoimmune diseases, such as experimental autoimmune encephalitis and arthritis. The participation of IL-17A has also been described in the acute rejection of organ transplants and graft versus host disease. However, the greatest revolution in research with IL-17 happened in 2000, when it was proposed that IL-17 cannot be classified as Th1 or Th2, but rather, simply as a new lineage of IL-17-producing T-cells. These findings modified the previously established Th1/Th2 paradigm, leading to the definition of the CD3+ CD4+ Th17 cellular subtype and establishment of a new model to explain the origin of various immune events, as well as its implication in the graft versus host disease that is discussed in depth in this article.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-45082013000200019&lng=en&tlng=enil-17th17graft-host disease
spellingShingle Marília Normanton
Luciana Cavalheiro Marti
Current data on IL-17 and Th17 cells and implications for graft versus host disease
Einstein (São Paulo)
il-17
th17
graft-host disease
title Current data on IL-17 and Th17 cells and implications for graft versus host disease
title_full Current data on IL-17 and Th17 cells and implications for graft versus host disease
title_fullStr Current data on IL-17 and Th17 cells and implications for graft versus host disease
title_full_unstemmed Current data on IL-17 and Th17 cells and implications for graft versus host disease
title_short Current data on IL-17 and Th17 cells and implications for graft versus host disease
title_sort current data on il 17 and th17 cells and implications for graft versus host disease
topic il-17
th17
graft-host disease
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-45082013000200019&lng=en&tlng=en
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