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Document Type: Artigo
Title: High levels of soluble CD40 ligand and matrix metalloproteinase-9 in serum are associated with favorable clinical evolution in human visceral leishmaniasis
Authors: Oliveira, Fabrícia Alvisi de
Silva, Carla Vanessa Oliveira
Damascena, Nayra Prata
Passos, Rodrigo Oliveira
Duthie, Malcolm
Guderian, Jeffrey
Bhatia, Ajay
Moura, Tatiana Rodrigues de
Issue Date: Jul-2013
Abstract: BACKGROUND: Soluble CD40 ligand (sCD40L) and matrix metalloproteinase 9 (MMP-9) are inflammation markers and have been poorly described in infectious disease. In this prospective study, we describe the sera kinetics of these two molecules in the course of treatment follow up in human visceral leishmaniasis (VL). METHODS: Sera from VL patients were collected before and during follow up of regular Antimony treatment. sCD40L and MMP-9 were measured by Luminex assay. Paired analysis by Wilcoxon signed test was used for comparison of values of the same subjects before and after initiation of treatment. Correlations between clinical data and parasite load with the serum levels of sCD40L and MMP-9 were performed by Spearman test. Tests were considered statistically significant if the probability of a type I error was less than 5% (p-value < 0.05). RESULTS: While sCD40L and MMP-9 were not observed in sera from non endemic controls which are at low risk of Leishmania chagasi infection, elevated levels were observed in sera from VL patients, and an increase in sCD40L and MMP-9 levels were detectable during the follow-up of VL patients undergoing antimony treatment. sCD40L levels were also high in individuals living in endemic settings at high risk of infection (endemic controls). Additionally, negative correlations were found between spleen sizes and MMP-9 before treatment and sCD40L at day 15 of treatment. Negative correlations were also found between parasite load with both sCD40L and MMP-9. CONCLUSION: Serum sCD40L and MMP-9 are identified as new and simple biomarkers in two situations: (i) monitoring the success of therapy and (ii) predicting favorable clinical outcome of human VL.
Keywords: CD40
Ligantes solúveis
Metaloproteinases da Matriz
Doenças infecciosas
Leishmaniose visceral
ISSN: 1471-2334
Publisher / Institution : BioMed Central
Citation: OLIVEIRA, F. A et al. High levels of soluble CD40 ligand and matrix metalloproteinase-9 in serum are associated with favorable clinical evolution in human visceral leishmaniasis. BMC Infectious Diseases, London, v. 13, n. 331, jul. 2013. Disponível em: <>. Acesso em: 21 fev. 2014.
License: Creative Commons Attribution License
Appears in Collections:DME - Artigos publicados em periódicos

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