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Dendritic cell-derived VEGF-A plays a role in inflammatory angiogenesis of human secondary lymphoid organs and is driven by the coordinated activation of multiple transcription factors
Lymph node expansion during inflammation is essential to establish immune responses and relies on the development of blood and lymph vessels. Previous work in mice has shown that this process depends on the presence of VEGF-A produced by B cells, macrophages and stromal cells. In humans, however, th...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Impact Journals LLC
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5129930/ https://www.ncbi.nlm.nih.gov/pubmed/27256980 http://dx.doi.org/10.18632/oncotarget.9684 |
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author | Salvi, Valentina Vermi, William Gianello, Veronica Lonardi, Silvia Gagliostro, Vincenzo Naldini, Antonella Sozzani, Silvano Bosisio, Daniela |
author_facet | Salvi, Valentina Vermi, William Gianello, Veronica Lonardi, Silvia Gagliostro, Vincenzo Naldini, Antonella Sozzani, Silvano Bosisio, Daniela |
author_sort | Salvi, Valentina |
collection | PubMed |
description | Lymph node expansion during inflammation is essential to establish immune responses and relies on the development of blood and lymph vessels. Previous work in mice has shown that this process depends on the presence of VEGF-A produced by B cells, macrophages and stromal cells. In humans, however, the cell types and the mechanisms regulating the intranodal production of VEGF-A remain elusive. Here we show that CD11c(+) cells represent the main VEGF-A-producing cell population in human reactive secondary lymphoid organs. In addition we find that three transcription factors, namely CREB, HIF-1α and STAT3, regulate the expression of VEGF-A in inflamed DCs. Both HIF-1α and STAT3 are activated by inflammatory agonists. Conversely, CREB phosphorylation represents the critical contribution of endogenous or exogenous PGE(2). Taken together, these results propose a crucial role for DCs in lymph node inflammatory angiogenesis and identify novel potential cellular and molecular targets to limit inflammation in chronic diseases and tumors. |
format | Online Article Text |
id | pubmed-5129930 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Impact Journals LLC |
record_format | MEDLINE/PubMed |
spelling | pubmed-51299302016-12-11 Dendritic cell-derived VEGF-A plays a role in inflammatory angiogenesis of human secondary lymphoid organs and is driven by the coordinated activation of multiple transcription factors Salvi, Valentina Vermi, William Gianello, Veronica Lonardi, Silvia Gagliostro, Vincenzo Naldini, Antonella Sozzani, Silvano Bosisio, Daniela Oncotarget Research Paper: Pathology Lymph node expansion during inflammation is essential to establish immune responses and relies on the development of blood and lymph vessels. Previous work in mice has shown that this process depends on the presence of VEGF-A produced by B cells, macrophages and stromal cells. In humans, however, the cell types and the mechanisms regulating the intranodal production of VEGF-A remain elusive. Here we show that CD11c(+) cells represent the main VEGF-A-producing cell population in human reactive secondary lymphoid organs. In addition we find that three transcription factors, namely CREB, HIF-1α and STAT3, regulate the expression of VEGF-A in inflamed DCs. Both HIF-1α and STAT3 are activated by inflammatory agonists. Conversely, CREB phosphorylation represents the critical contribution of endogenous or exogenous PGE(2). Taken together, these results propose a crucial role for DCs in lymph node inflammatory angiogenesis and identify novel potential cellular and molecular targets to limit inflammation in chronic diseases and tumors. Impact Journals LLC 2016-05-31 /pmc/articles/PMC5129930/ /pubmed/27256980 http://dx.doi.org/10.18632/oncotarget.9684 Text en Copyright: © 2016 Salvi et al. http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Paper: Pathology Salvi, Valentina Vermi, William Gianello, Veronica Lonardi, Silvia Gagliostro, Vincenzo Naldini, Antonella Sozzani, Silvano Bosisio, Daniela Dendritic cell-derived VEGF-A plays a role in inflammatory angiogenesis of human secondary lymphoid organs and is driven by the coordinated activation of multiple transcription factors |
title | Dendritic cell-derived VEGF-A plays a role in inflammatory angiogenesis of human secondary lymphoid organs and is driven by the coordinated activation of multiple transcription factors |
title_full | Dendritic cell-derived VEGF-A plays a role in inflammatory angiogenesis of human secondary lymphoid organs and is driven by the coordinated activation of multiple transcription factors |
title_fullStr | Dendritic cell-derived VEGF-A plays a role in inflammatory angiogenesis of human secondary lymphoid organs and is driven by the coordinated activation of multiple transcription factors |
title_full_unstemmed | Dendritic cell-derived VEGF-A plays a role in inflammatory angiogenesis of human secondary lymphoid organs and is driven by the coordinated activation of multiple transcription factors |
title_short | Dendritic cell-derived VEGF-A plays a role in inflammatory angiogenesis of human secondary lymphoid organs and is driven by the coordinated activation of multiple transcription factors |
title_sort | dendritic cell-derived vegf-a plays a role in inflammatory angiogenesis of human secondary lymphoid organs and is driven by the coordinated activation of multiple transcription factors |
topic | Research Paper: Pathology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5129930/ https://www.ncbi.nlm.nih.gov/pubmed/27256980 http://dx.doi.org/10.18632/oncotarget.9684 |
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