期刊
BRAZILIAN JOURNAL OF MICROBIOLOGY
卷 49, 期 3, 页码 675-682出版社
SOC BRASILEIRA MICROBIOLOGIA
DOI: 10.1016/j.bjm.2017.10.004
关键词
Aspergillus fumigatus; Biofilm; Elastin; Extracellular matrix; Hydrophobicity
类别
资金
- National Council for Scientific and Technological Development, Brazil (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico - CNPq)
Aspergillus fumigatus is an opportunistic saprobe fungus that accounts for 90% of cases of pulmonary aspergillosis in immunosuppressed patients and is known for its angiotropism. When it reaches the respiratory tract, A. fumigatus interacts with structural components and blood vessels of the lungs, such as elastin. To understand the effect of this structural component, we examined the effect of elastin on the production and development of the biofilm of A. fumigatus. In RPMI containing 10 mg/mL of elastin, a significant increase (absorbance p < 0.0001; dry weight p < 0.0001) in the production of biofilm was observed in comparison to when RPMI was used alone, reaching a maximum growth of 18.8 mg (dry weight) of biofilm in 72 h. In addition, elastin stimulates the production (p = 0.0042) of extracellular matrix (ECM) and decreases (p = 0.005) the hydrophobicity during the development of the biofilm. These results suggest that elastin plays an important role in the growth of A. fumigatus and that it participates in the formation of thick biofilm. (C) 2018 Sociedade Brasileira de Microbiologia. Published by Elsevier Editora Ltda.
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