Down-Regulation of TLR and JAK/STAT Pathway Genes Is Associated with Diffuse Cutaneous Leishmaniasis: A Gene Expression Analysis in NK Cells from Patients Infected with Leishmania mexicana.

An important NK-cell inhibition with reduced TNF-α, IFN-γ and TLR2 expression had previously been identified in patients with diffuse cutaneous leishmaniasis (DCL) infected with Leishmania mexicana. In an attempt to pinpoint alterations in the signaling pathways responsible for the NK-cell dysfuncti...

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Main Authors: Edith A Fernández-Figueroa, Iván Imaz-Rosshandler, Juan E Castillo-Fernández, Haydee Miranda-Ortíz, Juan C Fernández-López, Ingeborg Becker, Claudia Rangel-Escareño
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-03-01
Series:PLoS Neglected Tropical Diseases
Online Access:http://europepmc.org/articles/PMC4816531?pdf=render
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author Edith A Fernández-Figueroa
Iván Imaz-Rosshandler
Juan E Castillo-Fernández
Haydee Miranda-Ortíz
Juan C Fernández-López
Ingeborg Becker
Claudia Rangel-Escareño
author_facet Edith A Fernández-Figueroa
Iván Imaz-Rosshandler
Juan E Castillo-Fernández
Haydee Miranda-Ortíz
Juan C Fernández-López
Ingeborg Becker
Claudia Rangel-Escareño
author_sort Edith A Fernández-Figueroa
collection DOAJ
description An important NK-cell inhibition with reduced TNF-α, IFN-γ and TLR2 expression had previously been identified in patients with diffuse cutaneous leishmaniasis (DCL) infected with Leishmania mexicana. In an attempt to pinpoint alterations in the signaling pathways responsible for the NK-cell dysfunction in patients with DCL, this study aimed at identifying differences in the NK-cell response towards Leishmania mexicana lipophosphoglycan (LPG) between patients with localized and diffuse cutaneous leishmaniasis through gene expression profiling. Our results indicate that important genes involved in the innate immune response to Leishmania are down-regulated in NK cells from DCL patients, particularly TLR and JAK/STAT signaling pathways. This down-regulation showed to be independent of LPG stimulation. The study sheds new light for understanding the mechanisms that undermine the correct effector functions of NK cells in patients with diffuse cutaneous leishmaniasis contributing to a better understanding of the pathobiology of leishmaniasis.
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spelling doaj.art-2edf093174524b4aa7963486a47de8ea2022-12-21T22:32:55ZengPublic Library of Science (PLoS)PLoS Neglected Tropical Diseases1935-27271935-27352016-03-01103e000457010.1371/journal.pntd.0004570Down-Regulation of TLR and JAK/STAT Pathway Genes Is Associated with Diffuse Cutaneous Leishmaniasis: A Gene Expression Analysis in NK Cells from Patients Infected with Leishmania mexicana.Edith A Fernández-FigueroaIván Imaz-RosshandlerJuan E Castillo-FernándezHaydee Miranda-OrtízJuan C Fernández-LópezIngeborg BeckerClaudia Rangel-EscareñoAn important NK-cell inhibition with reduced TNF-α, IFN-γ and TLR2 expression had previously been identified in patients with diffuse cutaneous leishmaniasis (DCL) infected with Leishmania mexicana. In an attempt to pinpoint alterations in the signaling pathways responsible for the NK-cell dysfunction in patients with DCL, this study aimed at identifying differences in the NK-cell response towards Leishmania mexicana lipophosphoglycan (LPG) between patients with localized and diffuse cutaneous leishmaniasis through gene expression profiling. Our results indicate that important genes involved in the innate immune response to Leishmania are down-regulated in NK cells from DCL patients, particularly TLR and JAK/STAT signaling pathways. This down-regulation showed to be independent of LPG stimulation. The study sheds new light for understanding the mechanisms that undermine the correct effector functions of NK cells in patients with diffuse cutaneous leishmaniasis contributing to a better understanding of the pathobiology of leishmaniasis.http://europepmc.org/articles/PMC4816531?pdf=render
spellingShingle Edith A Fernández-Figueroa
Iván Imaz-Rosshandler
Juan E Castillo-Fernández
Haydee Miranda-Ortíz
Juan C Fernández-López
Ingeborg Becker
Claudia Rangel-Escareño
Down-Regulation of TLR and JAK/STAT Pathway Genes Is Associated with Diffuse Cutaneous Leishmaniasis: A Gene Expression Analysis in NK Cells from Patients Infected with Leishmania mexicana.
PLoS Neglected Tropical Diseases
title Down-Regulation of TLR and JAK/STAT Pathway Genes Is Associated with Diffuse Cutaneous Leishmaniasis: A Gene Expression Analysis in NK Cells from Patients Infected with Leishmania mexicana.
title_full Down-Regulation of TLR and JAK/STAT Pathway Genes Is Associated with Diffuse Cutaneous Leishmaniasis: A Gene Expression Analysis in NK Cells from Patients Infected with Leishmania mexicana.
title_fullStr Down-Regulation of TLR and JAK/STAT Pathway Genes Is Associated with Diffuse Cutaneous Leishmaniasis: A Gene Expression Analysis in NK Cells from Patients Infected with Leishmania mexicana.
title_full_unstemmed Down-Regulation of TLR and JAK/STAT Pathway Genes Is Associated with Diffuse Cutaneous Leishmaniasis: A Gene Expression Analysis in NK Cells from Patients Infected with Leishmania mexicana.
title_short Down-Regulation of TLR and JAK/STAT Pathway Genes Is Associated with Diffuse Cutaneous Leishmaniasis: A Gene Expression Analysis in NK Cells from Patients Infected with Leishmania mexicana.
title_sort down regulation of tlr and jak stat pathway genes is associated with diffuse cutaneous leishmaniasis a gene expression analysis in nk cells from patients infected with leishmania mexicana
url http://europepmc.org/articles/PMC4816531?pdf=render
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