Immuno-PCR: a promising ultrasensitive diagnostic method to detect antigens and antibodies

Area of Science:

• Biotechnology
• Immunology
• Molecular Biology

Background:

• Immuno-PCR (iPCR) merges ELISA and PCR, offering high sensitivity for protein antigen detection.
• Historically, iPCR has been underutilized due to limitations, reflected in sparse publication records.
• The development of novel systems and reagents is enhancing iPCR's applicability.

Purpose of the Study:

• To review the evolution of Immuno-PCR (iPCR) technology.
• To highlight the advancements that address previous drawbacks of iPCR.
• To explore the potential of iPCR as a routine microbial diagnostic tool.

Main Methods:

• Review of classical and modern Immuno-PCR (iPCR) formats.
• Analysis of technological improvements in iPCR systems.
• Evaluation of iPCR's suitability for microbial diagnostics.

Main Results:

• Early iPCR formats presented significant drawbacks hindering routine use.
• Modern iPCR systems incorporate ready-to-use reagents and diverse linker molecules.
• Protocol times have been reduced, and new systems enhance iPCR's practicality.

Conclusions:

• Immuno-PCR (iPCR) has evolved from a niche technique to a promising diagnostic method.
• Technological refinements are overcoming previous limitations of iPCR.
• iPCR is poised to become an essential tool in microbial diagnostics.