Multiplexing LAMP Assays: A Methodological Review and Diagnostic Application

Area of Science:

• Molecular Biology
• Biotechnology
• Diagnostic Assays

Background:

• Loop-mediated isothermal amplification (LAMP) offers a rapid, sensitive, and specific alternative to PCR, requiring minimal instrumentation.
• A significant challenge in LAMP is achieving multiplex detection (simultaneous detection of multiple targets) within a single reaction tube.
• Existing multiplexing strategies often rely on complex probe designs, hindering assay optimization and adaptation.

Purpose of the Study:

• To summarize and evaluate diverse methodologies for developing multiplex LAMP assays.
• To assess the practical applicability of these multiplexing techniques based on key performance indicators.
• To provide insights for selecting appropriate multiplex LAMP strategies for specific applications.

Main Methods:

• Review and summarization of various sequence-specific detection methods for multiplex LAMP.
• Evaluation of methodologies based on real-time detection, result visualization, component stabilization, point-of-care suitability, target capacity, and clinical validation.
• Schematic representation illustrating the principles of multiplex LAMP techniques.

Main Results:

• Different multiplex LAMP methodologies exhibit distinct operating conditions and underlying mechanisms.
• Each approach presents unique advantages and disadvantages concerning practical implementation and performance.
• The choice of method depends on specific application requirements and desired outcomes.

Conclusions:

• Multiplex LAMP assays can be developed using various sequence-specific detection strategies.
• Method selection requires careful consideration of factors like detection sensitivity, ease of use, and clinical relevance.
• Further optimization and validation are crucial for advancing multiplex LAMP for widespread diagnostic applications.