PCR and molecular diagnostics: Biotechnologic integration in clinical laboratories

Area of Science:

• Molecular Biology
• Medical Diagnostics
• Biotechnology

Background:

• Molecular tests revolutionize laboratory medicine with rapid, sensitive, and precise identification of pathogens, genetic mutations, and biomarkers.
• Polymerase chain reaction (PCR) remains the most versatile and clinically applicable molecular technique.
• Advanced PCR platforms like qPCR, dPCR, and RT-PCR offer accurate nucleic acid detection, quantification, and high-throughput analysis.

Purpose of the Study:

• To review the evolution of PCR technology from traditional methods to advanced platforms.
• To examine the contributions of advanced PCR techniques to nucleic acid analysis and high-throughput screening.
• To discuss the integration of PCR with other technologies for comprehensive disease state analysis.

Main Methods:

• Review of traditional and advanced PCR techniques (qPCR, dPCR, RT-PCR, multiplex PCR).
• Exploration of PCR integration with Next-Generation Sequencing (NGS), CRISPR, microarrays, and epigenetic profiling.
• Discussion of applications in cancer research (EGFR, KRAS, BRAF, ctDNA), infectious diseases, AMR, genetic disorders, and MRD monitoring.

Main Results:

• Advanced PCR platforms enhance accurate detection, quantification, and high-throughput analysis of nucleic acids.
• Integration with technologies like NGS and CRISPR broadens the scope of disease state analysis.
• PCR-based methods are crucial for early cancer diagnosis, prognostication, treatment monitoring, and precision medicine.

Conclusions:

• PCR technology and its integrated applications significantly advance disease diagnosis, monitoring, and precision medicine.
• Emerging trends include multi-omics data integration with AI and the development of liquid biopsy and point-of-care platforms.
• Despite challenges in cost, standardization, and data management, ongoing advances increase accessibility for clinicians and patients.