Multiplex PCR-based DNA array for simultaneous detection of three human herpesviruses, EVB, CMV and KSHV

Area of Science:

• Virology
• Molecular Biology
• Clinical Diagnostics

Background:

• Human lymphotropic herpesviruses, including Epstein-Barr virus (EBV), cytomegalovirus (CMV), and Kaposi's sarcoma-associated herpesvirus (KSHV), cause diverse diseases.
• Increased immunosuppression leads to co-infections and viral reactivations, causing significant mortality.
• Rapid and accurate detection of these viruses is crucial for timely treatment of immunocompromised patients.

Purpose of the Study:

• To develop a novel multiplex PCR coupled to DNA array hybridization method.
• To enable simultaneous detection of EBV, CMV, and KSHV in a single cell sample.
• To provide a rapid and reliable diagnostic tool for clinical applications.

Main Methods:

• Designed multiplex PCR primers targeting specific regions of EBV (EBER1), CMV (IE), and KSHV (LANA) viral genomes.
• Utilized DNA array hybridization for simultaneous detection of amplified viral DNA.
• Evaluated the method's sensitivity, specificity, and ability to detect co-infections.

Main Results:

• The method achieved high sensitivity, detecting as few as 1 viral genome copy for KSHV and CMV, and 100 copies for EBV.
• Demonstrated no cross-reactivity among the three herpesviruses.
• Successfully detected simultaneous KSHV and EBV co-infection in lymphoblastoid cells.

Conclusions:

• The developed multiplex PCR and DNA array hybridization assay is a sensitive and specific tool.
• This array-based approach offers rapid and reliable simultaneous detection of EBV, CMV, and KSHV.
• The method is suitable for clinical diagnosis, particularly in immunocompromised patients.