Precision Medicine in the CICU: Identifying Proteomic Biomarkers

This observational study will test patient plasma using the SomaScan platform, a highly multiplexed proteomic tool that uses SOMAmers (Slow Off-rate Modified Aptamers) to bind with high specificity and affinity to preselected proteins to quantify levels. SomaScan v5.0 quantifies 10,778 clinically relevant human proteins, with several thousand proteins linked to inflammation and immune system functions, across a wide range of concentrations (\>10 logs) with high sensitivity (\<1 pg/mL) and reproducibility (median coefficient of variation \< 5%). Individual protein concentrations are transformed into a corresponding SOMAmer concentration and quantified using a DNA microarray read-out.