Detection of influenza A virus subtypes using a solid-phase PCR microplate chip assay

Area of Science:

• Molecular Biology
• Virology
• Biotechnology

Background:

• Influenza A virus poses a significant global health threat, necessitating rapid diagnostic tools.
• Current detection methods can be time-consuming and require specialized laboratory equipment.
• Development of sensitive and specific assays for influenza A subtypes is crucial for effective disease management.

Purpose of the Study:

• To develop a rapid and sensitive microplate chip-based assay for identifying influenza A subtypes.
• To evaluate the performance of solid-phase polymerase chain reaction (PCR) for influenza A screening.
• To assess the specificity and sensitivity of the developed diagnostic platform.

Main Methods:

• Development of a microplate chip using solid-phase PCR.
• Immobilization of DNA probes onto microplates via ultraviolet cross-linking.
• Testing the sensitivity using enzymatic colorimetric and fluorescence methods.
• Validation of primer and probe specificity for 10 influenza A targets.

Main Results:

• The microplate chip successfully identified influenza A subtypes.
• Solid-phase PCR proved to be a convenient method for influenza A screening.
• The assay demonstrated high sensitivity: 10(-3) μg/mL (colorimetric) and 10(-4) μg/mL (fluorescence).
• 10 sets of primers and probes exhibited high specificity without cross-interference.

Conclusions:

• The developed microplate chip based on solid PCR provides a rapid and sensitive method for detecting influenza A and its subtypes.
• This platform shows potential for the detection of other pathogenic microorganisms.
• The assay's high specificity and sensitivity make it a valuable tool for influenza diagnostics.