Current status and future perspectives on molecular and serological methods in diagnostic mycology.
Invasive fungal infections are an important cause of infectious morbidity. Nonculture-based methods are increasingly used for rapid, accurate diagnosis to improve patient outcomes. New and existing DNA amplification platforms have high sensitivity and specificity for direct detection and identification of fungi in clinical specimens. Since laboratories are increasingly reliant on DNA sequencing for fungal identification, measures to improve sequence interpretation should support validation of reference isolates and quality control in public gene repositories. Novel technologies (e.g., isothermal and PNA FISH methods), platforms enabling high-throughput analyses (e.g., DNA microarrays and Luminex xMAP) and/or commercial PCR assays warrant further evaluation for routine diagnostic use. Notwithstanding the advantages of molecular tests, serological assays remain clinically useful for patient management. The serum Aspergillus galactomannan test has been incorporated into diagnostic algorithms of invasive aspergillosis. Both the galactomannan and the serum beta-D-glucan test have value for diagnosing infection and monitoring therapeutic response.
Lau
Anna
A
Centre for Infectious Diseases & Microbiology, University of Sydney, Australia. Anna.Lau@swahs.health.nsw.gov.au
Chen
Sharon
S
Sleiman
Sue
S
Sorrell
Tania
T
D000946:Antigens, Fungal / Q000032:analysis / Q000097:blood; D004271:DNA, Fungal / Q000032:analysis / Q000235:genetics; D005658:Fungi / Q000302:isolation & purification / Q000502:physiology; D005821:Genetic Techniques / Q000639:trends; D006801:Humans; D025202:Molecular Diagnostic Techniques / Q000379:methods / Q000639:trends; D009172:Mycology / Q000379:methods / Q000639:trends; D009181:Mycoses / Q000097:blood / Q000175:diagnosis* / Q000382:microbiology; D012680:Sensitivity and Specificity; D012698:Serologic Tests / Q000379:methods / Q000639:trends
D000946:Antigens, Fungal; D004271:DNA, Fungal