A standardized framework for circulating blood proteomics.

Area of Science:

• Biochemistry
• Proteomics
• Biomarker Discovery

Background:

• The circulating blood proteome is a rich source for identifying disease biomarkers and understanding biological mechanisms.
• Advances in mass spectrometry and affinity-based technologies have been significant.
• However, integrating data across studies and platforms is challenging due to a lack of unified analytical standards.

Purpose of the Study:

• To outline key challenges in blood-based proteomics.
• To propose actionable strategies for overcoming these challenges.
• To highlight the importance of technology-agnostic reference samples for data integration and clinical translation.

Main Methods:

• This perspective outlines challenges and proposes strategies based on current understanding of proteomics data integration.
• The core recommendation involves the development and use of high-quality, technology-agnostic reference samples.
• Emphasis is placed on fostering interconnected research across different proteomic technologies, sample collections, and clinical phenotypes.

Main Results:

• Absence of unified analytical standards hinders comprehensive exploration of human biology and translation of findings.
• Disparities in datasets arise from variations in sample collection, pre-analytical handling, and measurement methods.
• Technology-agnostic reference samples can bridge disparate datasets and enable robust cross-study comparisons.

Conclusions:

• Standardized analytical approaches and reference materials are essential for advancing blood-based proteomics.
• Implementing reference samples will facilitate robust cross-study comparisons and data integration.
• This will accelerate the field of proteomics and its application in clinical settings.