Journal
JOURNAL OF FUNGI
Volume 9, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/jof9060622
Keywords
invasive aspergillosis; Aspergillus fumigatus; monoclonal antibody; fungal diagnostics
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The monoclonal antibody AB90-E8 can specifically recognize A. fumigatus, providing a rapid diagnostic tool for early detection of invasive aspergillosis and timely adjustment of treatment.
In most cases, invasive aspergillosis (IA) is caused by A. fumigatus, though infections with other Aspergillus spp. with lower susceptibilities to amphotericin B (AmB) gain ground. A. terreus, for instance, is the second leading cause of IA in humans and of serious concern because of its high propensity to disseminate and its in vitro and in vivo resistance to AmB. An early differentiation between A. fumigatus and non-A. fumigatus infections could swiftly recognize a potentially ineffective treatment with AmB and lead to the lifesaving change to a more appropriate drug regime in high-risk patients. In this study, we present the characteristics of the monoclonal IgG(1)-antibody AB90-E8 that specifically recognizes a surface antigen of A. fumigatus and the closely related, but not human pathogenic A. fischeri. We show immunostainings on fresh frozen sections as well as on incipient mycelium picked from agar plates with tweezers or by using the expeditious tape mount technique. All three methods have a time advantage over the common procedures currently used in the routine diagnosis of IA and outline the potential of AB90-E8 as a rapid diagnostic tool.
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