Simultaneous Detection of Different Antibody Classes in a Multiplexed Serological Test

Area of Science:

• * Infectious disease diagnostics
• * Immunology
• * Serological assays

Background:

• * Monitoring infectious disease progression requires assessing immunoreactivity and antibody isotypes.
• * Lyme borreliosis diagnosis is complicated by multiple Borrelia species and varying IgG/IgM response timelines.
• * Current diagnostics necessitate evaluating multiple antigens and antibody types, increasing complexity and resource use.

Purpose of the Study:

• * To develop a two-reporter multiplex immunoassay for simultaneous detection of IgG and IgM immunoreactivity against diverse Borrelia antigens.
• * To enhance the efficiency and reduce sample requirements for Lyme borreliosis serological testing.
• * To provide a more comprehensive serological profile from a single sample.

Main Methods:

• * Development of a dual-reporter multiplex immunoassay.
• * Simultaneous evaluation of IgG and IgM antibody responses against different Borrelia antigens in human serum.
• * Application of the assay for identifying Borrelia-specific immune responses.

Main Results:

• * The developed assay successfully identifies Borrelia-specific immune responses by simultaneously measuring IgG and IgM.
• * The dual-reporter approach maintains analytical performance comparable to single-reporter methods.
• * The assay conserves time and resources while reducing the required sample volume.

Conclusions:

• * The two-reporter multiplex immunoassay offers an efficient method for diagnosing Lyme borreliosis.
• * This assay provides double the serological information from a single sample in half the time.
• * The technology enhances diagnostic capabilities for infectious diseases with complex etiological agents.