期刊
MICROBES AND INFECTION
卷 12, 期 14-15, 页码 1153-1162出版社
ELSEVIER
DOI: 10.1016/j.micinf.2010.07.013
关键词
Paracoccidioidomycosis; Cytokines; Itraconazole; Lung fibrosis
资金
- COLCIENCIAS, Bogota, Colombia [2213-04-16439]
- Corporacion para Investigaciones Biologicas (CIB)
- University of Antioquia (UdeA), Medellin, Colombia
A comparative study, based on histopathologic findings (inflammation, cellularity, and fibrosis) and immunologic parameters (pro-inflammatory and anti-inflammatory cytokines), was carried out in order to evaluate the effects of itraconazole (ITC) treatment and its starting time in a BALB/c murine model of chronic pulmonary paracoccidioidomycosis (PCM), induced by intranasal inoculation of Paracoccidioides brasiliensis (Pb) conidia. Two different groups of mice were exposed to ITC therapy beginning at the 4th or 8th week after Pb infection, respectively. ITC was administered daily, via gavage, for a period of sixty days. At weeks 0, 4, 8, 12 and 16 the animals were sacrificed and their lungs removed for histology staining with hematoxylin and eosin (H&E), Masson's trichromic and Gomori-Grocott; pulmonary levels of IL-1 beta, TNF-alpha, IFN-gamma, 1L-13 and TGF-beta were also measured by ELISA. The development or absence of the principal pulmonary PCM sequela, lung fibrosis, was directly related to the therapy's starting time. This and other histopathologic findings were related to the behavior of cytokine levels. (C) 2010 Institut Pasteur. Published by Elsevier Masson SAS. All rights reserved.
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