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        "titulo" => "Abstract"
        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">To characterize 17 immunological markers in the Urine of patients with SLE&#46;</p> <span class="elsevierStyleSectionTitle">Introduction</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Lupus nephritis is an inflammatory disease affecting the renal parenchyma&#46; Cytokines and chemokines are key immune mediators that have been related with the pathogenesis of the disease&#46; Obtaining non invasive prognosis markers is a highly desirable objective in order to improve the clinical management of these patients&#46;</p> <span class="elsevierStyleSectionTitle">Patients and methods</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">In this study we profiled 17 immune mediators &#40;Th1&#44; Th2&#44; Th17 cytokines&#44; chemokines and growth factors&#41; in the urine of 25 patients with systemic lupus erythematosus with active renal disease by using a Biorad<span class="elsevierStyleSup">&#169;</span> 17-plex kit on a Luminex<span class="elsevierStyleSup">&#169;</span> platform&#46; A group of healthy volunteers of similar age and comparable sex distribution was recruited as control &#40;n&#61;10&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Results evidenced that the only detectable mediators in urine were IL-8&#44; MCP-1 and MIP-1b&#46; When levels of these mediators were compared between patients and controls&#44; significantly higher levels of MCP-1 were observed in the urine of the patients&#46; MCP-1 levels in urine correlated positively with the SLEDAI score in a significant way and negatively with plasma levels of complement C4&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Our results reinforce the role of MCP-1 in urine as biomarker of disease activity in renal lupus&#44; excluding the detection of other soluble immune mediators such as Th1&#44; Th2&#44; Th17 cytokines and growth factors as suitable markers in this non invasive sample&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Perfilar 17 medidores inmunol&#243;gicos en la orina de pacientes con LES&#46; Introducci&#243;n&#58; La nefritis l&#250;pica es una enfermedad inflamatoria que afecta al par&#233;nquima renal&#46; Citoquinas y quimiocinas son los mediadores inmunes dominantes relacionados con la patog&#233;nesis de la enfermedad&#46; La obtenci&#243;n de marcadores de pron&#243;stico no invasivos es un objetivo sumamente deseable para mejorar el manejo cl&#237;nico de estos pacientes&#46;</p> <span class="elsevierStyleSectionTitle">Pacientes y m&#233;todos</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">En este estudio nosotros perfilamos 17 mediadores inmunol&#243;gicos &#40;citoquinas Th1&#44; Th2&#44; Th17&#44; quimiocinas y factores de crecimiento&#41; en la orina de 25 pacientes con lupus y enfermedad renal activa usando un kit Biorad<span class="elsevierStyleSup">&#169;</span> 17-plex en plataforma Luminex<span class="elsevierStyleSup">&#169;</span>&#46; Como grupo control se seleccionaron &#40;n<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>10&#41; voluntarios sanos con similar edad y sexo que los casos&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Los resultados evidenciaron que los &#250;nicos mediadores perceptibles en orina eran IL-8&#44; MCP-1 y MIP-1b&#46; Cuando los niveles de estos mediadores fueron comparados entre los pacientes y los controles&#44; MCP-1 en la orina de los casos fue el &#250;nico que aument&#243; de forma significativa &#40;p<span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>0&#44;05&#41; con respecto a los controles&#46; Estos niveles de MCP-1 en orina se correlacionaron de forma positiva con la puntuaci&#243;n de SLEDAI y de forma negativa con los niveles en plasma de la prote&#237;na C4 del sistema de complemento&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Nuestros resultados refuerzan el papel de MCP-1 en orina como biomarcador no invasivo de actividad de enfermedad en el lupus renal&#44; no evidenciando la detecci&#243;n de otros mediadores inmunol&#243;gicos solubles&#44; como son las citoquinas Th1&#44; Th2&#44; Th17 y factores de crecimiento&#46;</p>"
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Vol. 6. Issue 6.
Pages 296-298 (November - December 2010)
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Vol. 6. Issue 6.
Pages 296-298 (November - December 2010)
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MCP-1 in urine as biomarker of renal lupus in absence of cytokines, interferon-γ and growth factors
MCP-1 en orina como biomarcador de lupus renal en ausencia de citoquinas, interferón-γ y factores de crecimiento
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Julia Barbadoa, Luisa Vegaa, Rocío González-Gallegoa, Antonio Jimenoa, Raúl Ortiz De Lejarazub, Jesús F. Bermejo-Martinb,
Corresponding author
jbermejo@hcuv.sacyl.es

Corresponding author.
a Unidad de Enfermedades Autoinmunes, Servicio de Medicina Interna, Hospital Clínico Universitario, Valladolid, Spain
b Unidad de Investigación en Infección e Inmunidad, Servicio de Microbiología e Inmunología, Hospital Clínico Universitario, IECSCYL, Valladolid, Spain
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Article information
Abstract
Objective

To characterize 17 immunological markers in the Urine of patients with SLE.

Introduction

Lupus nephritis is an inflammatory disease affecting the renal parenchyma. Cytokines and chemokines are key immune mediators that have been related with the pathogenesis of the disease. Obtaining non invasive prognosis markers is a highly desirable objective in order to improve the clinical management of these patients.

Patients and methods

In this study we profiled 17 immune mediators (Th1, Th2, Th17 cytokines, chemokines and growth factors) in the urine of 25 patients with systemic lupus erythematosus with active renal disease by using a Biorad© 17-plex kit on a Luminex© platform. A group of healthy volunteers of similar age and comparable sex distribution was recruited as control (n=10).

Results

Results evidenced that the only detectable mediators in urine were IL-8, MCP-1 and MIP-1b. When levels of these mediators were compared between patients and controls, significantly higher levels of MCP-1 were observed in the urine of the patients. MCP-1 levels in urine correlated positively with the SLEDAI score in a significant way and negatively with plasma levels of complement C4.

Conclusions

Our results reinforce the role of MCP-1 in urine as biomarker of disease activity in renal lupus, excluding the detection of other soluble immune mediators such as Th1, Th2, Th17 cytokines and growth factors as suitable markers in this non invasive sample.

Keywords:
Renal lupus
Urine
Immune mediators
Resumen
Objetivo

Perfilar 17 medidores inmunológicos en la orina de pacientes con LES. Introducción: La nefritis lúpica es una enfermedad inflamatoria que afecta al parénquima renal. Citoquinas y quimiocinas son los mediadores inmunes dominantes relacionados con la patogénesis de la enfermedad. La obtención de marcadores de pronóstico no invasivos es un objetivo sumamente deseable para mejorar el manejo clínico de estos pacientes.

Pacientes y métodos

En este estudio nosotros perfilamos 17 mediadores inmunológicos (citoquinas Th1, Th2, Th17, quimiocinas y factores de crecimiento) en la orina de 25 pacientes con lupus y enfermedad renal activa usando un kit Biorad© 17-plex en plataforma Luminex©. Como grupo control se seleccionaron (n=10) voluntarios sanos con similar edad y sexo que los casos.

Resultados

Los resultados evidenciaron que los únicos mediadores perceptibles en orina eran IL-8, MCP-1 y MIP-1b. Cuando los niveles de estos mediadores fueron comparados entre los pacientes y los controles, MCP-1 en la orina de los casos fue el único que aumentó de forma significativa (p<0,05) con respecto a los controles. Estos niveles de MCP-1 en orina se correlacionaron de forma positiva con la puntuación de SLEDAI y de forma negativa con los niveles en plasma de la proteína C4 del sistema de complemento.

Conclusiones

Nuestros resultados refuerzan el papel de MCP-1 en orina como biomarcador no invasivo de actividad de enfermedad en el lupus renal, no evidenciando la detección de otros mediadores inmunológicos solubles, como son las citoquinas Th1, Th2, Th17 y factores de crecimiento.

Palabras clave:
Lupus renal
Orina
Mediadores inmunológicos
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Copyright © 2010. Sociedad Española de Reumatología and Colegio Mexicano de Reumatología
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