Multiplex method for initial complex testing of antibodies to blood transmitted diseases agents

Area of Science:

• Medical Diagnostics
• Biotechnology
• Infectious Diseases

Background:

• Current screening for blood-transmitted diseases uses expensive, time-consuming monospecific tests.
• High-risk populations and blood donors require efficient initial screening methods.

Purpose of the Study:

• To develop a cost-effective multiplex test for simultaneous detection of multiple blood-borne pathogens.
• To create a rapid initial screening tool for blood products.

Main Methods:

• Development of a multiplex dot-immunoassay kit utilizing protein arrays (immune chips).
• The assay employs colloidal gold conjugates and silver development for antibody detection.
• Simultaneous detection of antibodies against HIV, Hepatitis B, Hepatitis C, Cytomegalovirus, T. pallidum, and T. gondii.

Main Results:

• The multiplex kit provides results within 70 minutes at room temperature.
• No specialized personnel are required for conducting the assay.
• Dot-assay results showed strong correlation with commercial Enzyme-Linked Immunosorbent Assay (ELISA) kits.
• Multiplex analysis is faster, cheaper, and suitable for non-laboratory settings compared to ELISA.

Conclusions:

• The developed multiplex dot-immunoassay kit significantly simplifies initial complex testing for blood-transmitted agents.
• This approach offers a rapid, cost-effective, and accessible screening solution.
• The kit has the potential to improve the safety of blood products through efficient initial screening.