Recent advances in targeted proteomics for clinical applications.

Area of Science:

• Proteomics
• Biomarker Discovery
• Mass Spectrometry

Background:

• Targeted mass spectrometry (MS) methods are crucial for clinical biomarker evaluation.
• Selected Reaction Monitoring (SRM) on triple quadrupole instruments is the current standard but faces challenges with complex samples and high analytical demands.
• Workflow segmentation partially addresses these issues but has limitations.

Purpose of the Study:

• To discuss the attributes and implications of Parallel Reaction Monitoring (PRM) for biomarker evaluation.
• To highlight the benefits of PRM in overcoming limitations of traditional SRM methods.
• To assess the impact of PRM on data quality, result consistency, and clinical study throughput.

Main Methods:

• Utilized targeted high-resolution and accurate-mass analyses.
• Employed fast sequencing mass spectrometers operated in Parallel Reaction Monitoring (PRM) mode.
• Discussed experimental design, execution, and data analysis specific to PRM.

Main Results:

• PRM offers significant improvements in data quality and consistency compared to SRM.
• The technique addresses limitations associated with complex clinical samples and high analytical demands.
• PRM demonstrates potential for increased throughput in clinical biomarker studies.

Conclusions:

• PRM represents a significant advancement for clinical proteomics and biomarker evaluation.
• The technique provides a more robust and efficient approach compared to traditional SRM.
• PRM facilitates progress in clinical studies by enhancing data quality and output.