Rapid detection for rabbit-derived dermatophytes using microsatellite-primed polymerase chain reaction

Area of Science:

• Medical Mycology
• Molecular Biology
• Infectious Diseases

Background:

• Dermatophytes cause common superficial fungal infections.
• Accurate and rapid identification is crucial for effective treatment and epidemiological studies.
• Morphological identification can be time-consuming and may lack specificity.

Purpose of the Study:

• To develop a highly sensitive, specific, and rapid molecular method for detecting and differentiating pathogenic dermatophytes.
• To utilize microsatellite-primed PCR combined with a clustering approach for DNA fingerprinting.
• To validate the method against traditional morphological identification.

Main Methods:

• DNA amplification of Trichophyton mentagrophyton, Microsporum gypseum, and Microsporum canis using the (GACA)4 primer.
• Analysis of DNA polymorphism fingerprints generated by microsatellite-primed PCR.
• Application of NTSYS-pc2.10 software for clustering and similarity analysis of 21 clinical strains.

Main Results:

• Distinct DNA polymorphism fingerprints were observed among the three pathogenic dermatophyte species.
• The similarity between isolated strains and standard strains exceeded 90%.
• The molecular method's results aligned with those obtained through morphological identification.

Conclusions:

• The developed microsatellite-primed PCR method offers high accuracy, sensitivity, and speed for dermatophyte detection.
• This technique is valuable for clinical diagnosis and epidemiological research of dermatophytosis.
• The method provides a simple and reliable alternative to conventional identification techniques.